NETWORK SWITCHING

METHOD AND APPARATUS FOR MONITORING NETWORK ERROR

The present disclosure relates to a method and apparatus for monitoring a network error in a network system. The apparatus for monitoring a network error according to the present disclosure checks whether a LAN switch is connected to the network system, checks whether the LAN switch is energy-efficient Ethernet (EEE) compatible with the network system if the LAN switch is connected to the network system, determines whether the LAN switch is in an abnormal state if the LAN switch is not EEE compatible with the network system, and re-drives the LAN switch if the LAN switch is in the abnormal state. Accordingly, the present invention can solve an Ethernet error generated in the LAN switch which does not conform to an Ethernet standard. COPYRIGHT KIPO 2018 (112) Storage part (114) Control part (116) Communication part ...

PROCESS AND SYSTEM FOR AN INTEGRATED CARRIER ETHERNET EXCHANGE

An Ethernet exchanger is coupled to two or more Ethernet networks to exchange information among the two or more Ethernet networks using virtual circuits. A first Ethernet network is associated with a first carrier and a first port of the Ethernet exchanger. A second Ethernet network is associated with a second carrier and a second port of the Ethernet exchanger. Network information of the first Ethernet network and network information of the second Ethernet network are provided by the respective first earner and the second earner and stored in a database. A virtual circuit is provisioned to interconnect the first Ethernet network and the second Ethernet network based on a partnership between the first earner and the second earner and based on the stored information about the first network and the second network. The virtual circuit is associated with the first port and the second port.

Advanced ethernet auto negotiation

A port on a network device engages in auto-negotiation on a network link during a first operational state to select a transmission mode, either half duplex or full duplex. If half duplex operation is selected, the port commences half duplex operation in a second operational state. During the second operational state, the link is monitored for an error condition indicating that another network device attached to the link may not be operating in a half duplex mode. This error condition includes the occurrence of excessive collisions or late collisions. When the error condition is detected, the port commences full duplex operation in a third operational state, based on the presumption that device at the other end of the link may be configured for fixed full duplex operation. If proper operation ensues, the port remains configured for full duplex transmission. Because the presumption may be incorrect, the link is monitored during the third operational state for a second error condition indicating that transmissions by the network device may be interfering with transmissions by the other network device. Examples of the second error condition include excessive frame check sequence errors and an excessive number of abnormally truncated messages. If such a second error condition occurs, the port is disabled in a fourth operational state and the condition is reported to higher-level operating software. Repeated attempts at normal operation may follow, with further monitoring that may result in shutting down the port if normal operation cannot be achieved.

Multi-speed serial interface for media access control and physical layer devices

A network device comprises a data translator that receives a first data stream at a first data rate and that includes a data sampler that selects one of X data symbols that are received, wherein the one of the X data symbols includes (M+N) bits, and that outputs a second data stream at a second data rate and a data remover that removes N of the (M+N) bits and that outputs a third data stream including symbols with the M bits at a third data rate. A physical layer device receives the third data stream.

Transparent auto-negotiation of Ethernet

A system for negotiating Ethernet link settings between interconnected nodes in a network having an Ethernet protocol stack that includes a PCS sub-layer with an auto-negotiation function. The system comprises connecting an intermediate device coupled between two network nodes via optical or copper interfaces, with the link settings between each node and the connected intermediate device being the same, thereby bypassing the auto-negotiation of the PCS sub-layer in the intermediate device. The intermediate device may transparently send negotiation messages from each node to the other during the link negotiation phase without interacting with those messages. Instead of the intermediate device, a single form pluggable (SFP) device may be connected between the two network nodes via optical or copper interfaces on the network side and via an SFP slot on the device side.

СПОСОБ, УСТРОЙСТВО И СИСТЕМА ОБРАБОТКИ ДЛЯ РАСШИРЕННОГО ПОРТА

Изобретение относится к области вычислительной техники связи. Технический результат заключается в повышении скорости обнаружения и контроля всех расширенных портов и информации о состоянии относительно расширителя порта. Технический результат достигается за счет отправки расширителем PE сообщения о создании расширенного порта в управляющий мост (Controlling Bridge, CB), обеспечивающий поиск и контроль расширенного порта расширителя РЕ, причем сообщение о создании расширенного порта переносит состояние порта, переносящее состояние MAC_Operational, для расширенного порта расширителя РЕ, и сообщение о создании расширенного порта используют для уведомления моста СВ создать виртуальный порт, соответствующий расширенному порту, и используют, чтобы мост СВ передал состояние MAC_Operational обратно в виртуальный порт. 5 н. и 8 з.п. ф-лы, 7 ил. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 693 903 C1 (51) МПК H04L 12/935 (2013.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК H04L 12/00 (2013.01); H04L 45/583 (2013.01); H04L 49/254 (2013.01); H04L 49/3054 (2013.01) (21)(22) Заявка: 2017144315, 09.12.2015 (24) Дата начала отсчета срока действия патента: Дата регистрации: 05.07.2019 27.05.2015 CN 201510280185.0 (45) Опубликовано: 05.07.2019 Бюл. № 19 (73) Патентообладатель(и): ЗетТиИ Корпорейшн (CN) (85) Дата начала рассмотрения заявки PCT на национальной фазе: 27.12.2017 (56) Список документов, цитированных в отчете о поиске: US 20140269710 A1, 18.09.2014. US 2013/0322457 A1, 05.12.2013. US 2012/0251114 A1, 04.10.2012. US 2014/0003428 A1, 02.01.2014. RU 2549120 C2, 20.04.2015. (86) Заявка PCT: 2 6 9 3 9 0 3 R U (87) Публикация заявки PCT: WO 2016/188081 (01.12.2016) C 1 C 1 CN 2015/096867 (09.12.2015) 2 6 9 3 9 0 3 Приоритет(ы): (30) Конвенционный приоритет: R U 09.12.2015 (72) Автор(ы): ШЭН Вэй (CN), ЛЮ Ху (CN), ЦЗЭН Ваньмэй (CN), ЧЖЭН Баовэнь (CN), ШЭН Лицзюнь (CN), ГЭН Чуньцзин (CN), ЧЖАН Цян (CN), АО Тин (CN) Адрес для ...

DATA ROUTING METHOD AND APPARATUS

A data routing method and apparatus, for implementing data routing in a communication system incorporating multiple types of networks employing different data bearer protocols. The method comprises: a routing apparatus receiving data through an input port, and determining a data bearer protocol attribute of the input port; the routing apparatus determining a data attribute according to the data bearer protocol attribute of the input port, the data attribute being IP or IQ if the data bearer protocol attribute of the input port is the CPRI protocol, and the data attribute being IP if the data bearing protocol attribute of the input port is the Ethernet protocol; the routing apparatus determining, according to the data attribute, a data bearer protocol attribute of an output port for data output; and the routing apparatus determining, according to the data bearer protocol attribute of the output port, the output port for data output, and outputting the data through the determined output port.

A data processing method and access node

一种数据处理的方法及接入节点。数据处理的方法包括：接收下行数据；判断下行数据是否为错误数据；若是，则用与下行数据具有相同带宽的帧间隙替换下行数据，发送替换后的数据。另一种数据的处理方法包括：接收上行数据；判断上行数据是否为自协商数据；若是，则用与上行数据具有相同带宽的帧间隙替换上行数据，发送替换后的数据、及响应上行数据。本发明实施例还提供接入节点。

INTEGRATED MULTIPORT SWITCH HAVING SHARED MEDIA ACCESS CONTROL CIRCUITRY

An integrated multiport switch (IMS) in which one combinational logic and register arrangement is provided for executing similar media access control (MAC) functions for a plurality of switch ports. The current access state at each of a plurality of switch ports is maintained at a single state storage location, whereby access of a stored port MAC state and update thereof is simplified. Access to state storage in coordination with the single common combinational logic and register arrangement enables MAC functions for each of the plurality of ports to be performed on a time shared basis to maximize efficiency of use of chip resources and architecture space.

Method and apparatus providing programmable thresholds for full-duplex flow control in a network switch

A network having a shared memory architecture for storing data frames has a set of programmable thresholds that specify when flow control should be initiated on full-duplex network ports. The network switch includes a queue for storing free frame pointers that specify available memory locations in an external memory for storing data frames received from a network station. The network switch takes a frame pointer from a free buffer queue for each received data frame, and stores the received data frame in the location in external memory specified by the frame pointer while a decision making engine within the switch determines the appropriate destination ports. Flow control is initiated based on the number of available frame pointers by transmitting a PAUSE frame having a selected PAUSE interval to a transmitting network station. Specifically, a full-duplex port will output a PAUSE frame having a short, medium, or long programmed pause interval if the free buffer pool of available frame pointers ...

Network switch

Method and apparatus for managing external physical layer devices

Every external physical layer device coupled to a multiport data communication switch is polled in succession to determine status and control information relating to the external physical layer device. The polling procedure performed automatically at regular time intervals is interleaved with management accesses to the external PHYs initiated by a host processor. The host management access may be performed to write or read management data to or from a particular register in a particular external physical layer device.

Multiport data network switch having a random number generator shared by multiple media access controllers

A multiport data network switch with each port associated with a media access controller (MAC) that is allocated a time slot in a repetitive sequence of clock cycles. A random number generator is coupled in common to each MAC to output a random number signal thereto. In response to a collision indicating signal, received at a port during a data transmission, the MAC outputs a retransmission retry signal in accordance with the random number signal that represents a number of delay cycles in which said transmission is delayed. The random number signal generator outputs an increasing multibit signal that is periodically reset. The MAC associated with each port is coupled in common to the shared random number signal generator and gains access thereto at a different respective time slot.

Method and apparatus for programmably driving an LED display

A method and apparatus for programmably driving a light-emitting diode(LED) display stores a display configuration in a register. The register contains the information identifying for which conditions in the system will status information be provided to LED drivers. When used in a system such as an Ethernet network multiport switch, for example, the status information for only those conditions and those ports identified by the display configuration stored in the configuration register will be displayed, even though status is collected for more conditions in the system.

Determining virtual adapter access controls in a computing environment

A control component of a computing environment initiates sending of request(s) over a network of the computing environment by an activated virtual adapter. The activated virtual adapter is hosted on a physical adapter of a host system coupled to the network, and is for use by a guest, hosted by the host system, in performing data input and output. The request(s) retrieve access control information from the network indicative of access control(s) enforced in controlling access by the activated virtual adapter to network component(s). The initiating provides indication(s) to the physical adapter, absent involvement of the guest, that the request(s) be sent by the virtual adapter. Based on the initiating, the control component obtains the access control information from the physical adapter, and determines, based on that information, the access control(s) being enforced by the network in controlling access by the activated virtual adapter to the network component(s).

Map sharing for a switch device

A method of implementing map sharing for a network switch appliance, the network switch appliance having a plurality of network ports and a plurality of instrument ports, the method includes: receiving a first input for creating a map for the network switch appliance, wherein the map comprises one or more packet processing rules, and wherein the act of receiving the first input is performed by a processing unit; receiving a second input for prescribing a map sharing privilege for the map; and storing the map and the map sharing privilege in association with the map in a non-transitory medium.

Managing a number of ethernet links

A method for managing a number of Ethernet links includes identifying a number of Ethernet links to utilize a number of channels of a cable based on a number of capabilities and a number of policies of a number of media access controllers (MACs) and a number of physical layer entities (PHYs), determining a number of Ethernet link types to be configured for the cable based on the capabilities and policies of the MACs and PHYs, negotiating a number of parameters to allow multi-channel ports of a number of nodes connected to the cable to establish communications through the Ethernet links based on the determined Ethernet link types and the utilized channels, and managing the cable configuration describing the MACs to be supported by the channels within the cable based on the policies.

METHOD AND BOARD FOR HIGH-SPEED LINK AUTO-NEGATIATION

A high-speed link self-negotiation method and single board are disclosed, which belong to the field of high-speed Ethernet. The method includes: a first single board and a second single board set the port speed to a common speed supported by both the first single board and the second single board; the first single board sends a first self-negotiation message, which carries the speed supported by the first single board, to the second single board according to the common speed, so as to make the second single board determine, according to the speed supported by the first single board and the speed supported by the second single board, the highest speed supported by both the first single board and the second single board and set the port speed to the highest speed; the first single board receives a second self-negotiation message which is sent by the second single board according to the common speed and carries the speed supported by the second single board; according to the speed supported ...

METHOD AND SYSTEM FOR ASSOCIATING WITH A GATEWAY EQUIPMENT

HIGH-SPEED LINK SELF-NEGOTIATION METHOD AND SINGLE BOARD

A high-speed link self-negotiation method and single board are disclosed, which belong to the field of high-speed Ethernet. The method includes: a first single board and a second single board set the port speed to a common speed supported by both the first single board and the second single board; the first single board sends a first self-negotiation message, which carries the speed supported by the first single board, to the second single board according to the common speed, so as to make the second single board determine, according to the speed supported by the first single board and the speed supported by the second single board, the highest speed supported by both the first single board and the second single board and set the port speed to the highest speed; the first single board receives a second self-negotiation message which is sent by the second single board according to the common speed and carries the speed supported by the second single board; according to the speed supported ...

LONG-REACH ETHERNET FOR 1000BASE-T AND 10GBASE-T

A physical-layer device (PHY) having corresponding methods comprises: a data rate module to select a data rate divisor N, where N is at least one of a positive integer, or a real number greater than, or equal to, 1; and a PHY core comprising a PHY transmit module to transmit first signals a data rate of M/N Gbps, and a PHY receive module to receive second signals at the data rate of M/N Gbps; wherein the first and second signals conform to at least one of 1000BASE-T, wherein M = 1, and 10GBASE-T, wherein M = 10.

Method and apparatus for managing learning in an address table in memory

A network switch configured for switching data packets across multiple ports uses an address table to generate frame forwarding information. A decision-making device receives a source address of a frame and a receive port number and searches the address table for a match. When the decision-making engine does not find a match, the switch adds an entry to the table including the source address and port number on which the data frame received. The new entry may be validated and used to generate frame forwarding information in subsequent searches of the address table.

Port Status Synchronization Method, Related Device, and System

A port status synchronization method, related device, and system, where a physical layer (PHY) device or an external processor connected to the PHY device determines whether a first service interface of the PHY device changes, and when the first service interface changes, controls a second service interface of the PHY device to restart auto-negotiation and sends, using the second service interface, an auto-negotiation advertisement packet to a first device connected to the second service interface in order to trigger the first device to synchronize, according to the auto-negotiation advertisement packet, a status of the second service interface and a status of the first service interface such that performing port status negotiation and synchronization between a link layer (media access control (MAC)) device or the first device and the PHY device using a service interface is achieved, without a need of disposing a management data input/output (MDIO) interface. 1. A port status synchronization method , wherein a physical layer (PHY) device and a link layer (media access control (MAC)) device are connected using a service interface , and the method comprises:determining, by the PHY device or an external processor connected to the PHY device, whether a first service interface of the PHY device changes;controlling, by the PHY device or the external processor, a second service interface of the PHY device to restart auto-negotiation when the first service interface of the PHY device changes; andsending, using the second service interface, an auto-negotiation advertisement packet to a first device connected to the second service interface in order to trigger the first device to synchronize, according to the auto-negotiation advertisement packet, a status of the second service interface and a status of the first service interface, and wherein the auto-negotiation advertisement packet comprises status information of the first service interface,wherein when the PHY device and ...

10/100/1000Base-T small-form-factor-pluggable module

An SFP module provides either a 1000Base-X or SGMII interface protocol to a host and provides a 1000Base-T media dependent interface (MDI). If the SFP module is coupled a host that only implements the 1000Base-X protocol then the SFP module translates the 1000Base-X protocol to the 1000Base-T protocol so that the host MAC sees the 1000Base-T SFP module as if it were an optical transceiver. If the host implements SGMII then the SFP performs auto-negotiation of speed and communicates with the host implement data transfer at a selected rate, e.g., 10, 100, or 1000 Mbps.

Network switch memory interface configuration

A network switch for network communications includes a first data port interface, wherein the first data port interface supports a plurality of data ports for transmitting and receiving data at a first data rate. The network switch also includes a second data port interface, wherein the second data port interface supports a plurality of data ports for transmitting and receiving data at a second data rate, along with a third data port interface for transmitting and receiving data at a third data rate. A CPU interface is provided and configured to communicate with a CPU. The switch includes a first, second and third internal memory communicating with the first, second and third data port interface. A first and second memory management unit for communicating data and to control access to and from the second internal memory, are also provided. A communication channel is provided for communicating data and messaging information.

ON LINE WEB PORTAL FOR PRIVATE NETWORK SERVICE PROVIDERS

A web-enabled user interface is provided to enable the carriers of private networks to interact and to offer services to one another. The web-enabled user interface is integrated to a switch fabric configured to provide interconnection services for the carriers. The web-enabled user interface is configured to enable the carriers to assign different roles to different representatives. Each of the representatives is granted certain rights and permissions by an administrator representative based on the representative's role. The web-enabled user interface is configured to present to each representative a unique interface based on their roles thus providing each representative a unique experience.

ETHERNET SWITCH AND REMOTE TRANSMISSION METHOD THEREOF

СПОСОБ И АППАРАТ ДЛЯ ПРИВЯЗКИ УСТРОЙСТВА

Изобретение относится к области связи. Технический результат направлен на повышение безопасности связи между пользователем и подлежащим привязке устройством. Способ привязки устройства включает, получение пароля привязки от подлежащего привязке устройства в локальной сети передачи данных, передачу на сервер запроса, который содержит идентификатор регистрационного имени и пароль на привязку подлежащего привязке устройства, сопоставляют указанный пароль привязки с локально сохраненными паролями привязки, если пароль соответствует, то устанавливают связь по привязке. 6 н. и 10 з.п. ф-лы, 12 ил. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 646 390 C1 (51) МПК G06F 3/00 (2006.01) H04L 29/06 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК G06F 3/00 (2006.01); H04L 29/06 (2006.01) (21)(22) Заявка: 2016118508, 29.10.2015 (24) Дата начала отсчета срока действия патента: Дата регистрации: (73) Патентообладатель(и): Сяоми Инк. (CN) 02.03.2018 (56) Список документов, цитированных в отчете о поиске: US 2010/0125652 A1, 20.05.2010. US 13.02.2015 CN 201510081029.1 2005/0044227 A1, 24.02.2005. US 2004/0228357 A1,18.11.2004. RU 2251817 C9, 27.06.2003. RU 130098 U1, 10.07.2013. (45) Опубликовано: 02.03.2018 Бюл. № 7 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 18.01.2017 (86) Заявка PCT: WO 2016/127667 (18.08.2016) Адрес для переписки: 191186, Санкт-Петербург, а/я 230, В.В. Дощечкина (54) СПОСОБ И АППАРАТ ДЛЯ ПРИВЯЗКИ УСТРОЙСТВА (57) Реферат: Изобретение относится к области связи. сервер запроса, который содержит идентификатор Технический результат направлен на повышение регистрационного имени и пароль на привязку безопасности связи между пользователем и подлежащего привязке устройства, сопоставляют подлежащим привязке устройством. Способ указанный пароль привязки с локально привязки устройства включает, получение пароля сохраненными паролями привязки, если пароль привязки от подлежащего привязке устройства в ...

SYNCHRONIZATION METHOD AND APPARATUS FOR INTERFACE PARAMETERS

INTERNET-BASED RADIO GATEWAY TO ENABLE HETEROGENEOUS RADIO INTER-GROUP CALL BY CONNECTING RADIO GROUPS MUTUALLY

An internet-based radio gateway according to the present invention includes: n channel ports which can be connected with first to n^th radios which communicate with n radio groups, respectively; n RoIP modules which are connected with the n channel ports, respectively; and a display unit which can be operated to set a patch on at least two channel ports among the n channel ports to enable a group call. The internet-based radio gateway according to the present invention can configure a single communication network, construct a wireless communication network without limit of location and distance, and conveniently perform a group setting capable of a single communication. COPYRIGHT KIPO 2018 (AA) Control unit (BB) Patch control module (CC) Right-to-speak control module (DD) Display unit (EE) RoIP module 1 (FF) RoIP module 2 (GG) RoIP module 3 (HH) RoIP module 4 (II) RoIP module 5 (JJ) RoIP module 6 (KK) RoIP module 7 (LL) RoIP module 8 (MM) Channel port 1 (NN) Channel port 2 (OO) Channel ...

Switch having function of saving power and power saving method thereof

NETWORK SWITCH

L'invention concerne un commutateur de réseau, permettant de commuter des paquets d'une source vers une destination, qui comprend un port source destiné à recevoir un paquet entrant à partir d'une source, un port destinataire doté d'un chemin acheminant ledit paquet vers une destination, et une unité de filtre destinée à construire et à appliquer un filtre à des champs sélectionnés du paquet entrant. L'unité de filtre comprend une logique de filtrage permettant de sélectionner des champs désirés du paquet entrant, et de copier des informations de champs sélectionnés à partir de ladite unité. La logique de filtrage construit une valeur de champ en fonction des champs sélectionnés, et applique une pluralité de masques de champs stockés à la valeur de champ. Le commutateur comprend une table de règles contenant une pluralité de règles. La logique de filtrage est configurée de façon à effectuer des recherches de table de règles, afin de déterminer les actions à entreprendre en fonction du résultat ...

SWITCH CAPABLE OF SAVING POWER AND METHOD THEREOF

A switch capable of saving power is provided. The switch includes at least one transmission port, and each port capable of being connected to one type of network device. The switch detects whether data transmission exists between one port and a network device connected to the port, detects an actual data transmission speed, obtains a discovery protocol, determines the type of the device according to identity information in the discovery protocol, decreases the preset transmission speed to a value which is equal to or exceeds a total of the actual transmission speed and a preset value, upon a condition that difference between the preset transmission speed and the actual data transmission speed is equal to or exceeds a fixed value, and sets the decreased transmission speed to an initial preset transmission speed when the data transmission ends. A corresponding power saving method is also provided.

Transparent auto-negotiation of ethernet

A system for negotiating Ethernet link settings between interconnected nodes in a network having an Ethernet protocol stack that includes a PCS sub-layer with an auto-negotiation function. The system comprises connecting an intermediate device coupled between two network nodes via optical or copper interfaces, with the link settings between each node and the connected intermediate device being the same, thereby bypassing the auto-negotiation of the PCS sub-layer in the intermediate device. The intermediate device may transparently send negotiation messages from each node to the other during the link negotiation phase without interacting with those messages. Instead of the intermediate device, a single form pluggable (SFP) device may be connected between the two network nodes via optical or copper interfaces on the network side and via an SFP slot on the device side.

Apparatus and method for equalizing received network signals using a transconductance controlled biquadratic equalizer

A network line equalizer includes a transconductance-controlled, tunable single zero high pass filter having a parasitic pole, and a single zero, single pole low pass filter, that eliminates the necessity of feedback loops or operational amplifiers. The tunable single zero high-pass filter includes a single zero impedance circuit, and first and second MOS transistors that output differential currents based on differential input signals and the impedance of the single zero impedance circuit. The MOS transistors act as source followers to convert the differential input voltage signals to respective differential current signals. The single zero impedance circuit connects the first and second MOS transistors, and causes the first and second MOS transistors to output a filtered pair of differential signals based on the impedance. The impedance of the single zero impedance circuit is implemented using CMOS transistors, enabling the impedance to be dynamically controlled by an external impedance ...

Method and system for speed negotiation for twisted pair links in fibre channel sytems

Certain aspects of a method and system for speed negotiation for twisted pair links in fiber channel systems are disclosed. Aspects of a method may include communicating data between fiber channel host devices communicatively coupled via a twisted pair link based on a common speed negotiated between the fiber channel host devices. At least one available speed may be determined for the communication of data between the fiber channel host devices over the twisted pair link. The determined available speeds for each of the fiber channel host devices may be exchanged via at least one fast link pulse signal. The common speed negotiated may be a highest available speed for the communication of data between the fiber channel host devices.

SYSTEM AND METHOD FOR DETERMINISTIC I/O WITH ETHERNET BASED INDUSTRIAL NETWORKS

A networking system is discussed. The system may be used for industrial networks, where deterministic behavior is often valued. Boundedmessage travel times may be achieved for a first set of network traffic. Additional traffic may be routed over the networking system without interfering with the message travel times associated with the first set of network traffic. Systems and methods for assigning priority to various sets of network traffic are discussed.

Method and device for realizing port consultation between fabric channel over Ethernet (FCoE) forwarders

PROCESS AND SYSTEM Of ASSOCIATION Of EQUIPMENT WITH FOOTBRIDGE

La présente invention concerne un procédé et système d'association d'un équipement avec une passerelle, ladite passerelle étant prévue pour communiquer, d'une part, avec l'équipement via un réseau de communication et, d'autre part, avec un autre équipement dit serveur. Le procédé est caractérisé en ce qu'il comporte une étape d'envoi, par le serveur et à destination de la passerelle, d'une autorisation pour qu'un équipement puisse s'associer avec cette passerelle.

A NETWORK TO NETWORK INTERFACE (NNI) FOR MULTIPLE PRIVATE NETWORK SERVICE PROVIDERS

An Ethernet exchanger connected to private Ethernet networks of participating carriers to enable the private Ethernet networks to be interconnected at a common point. The Ethernet exchanger not biased to any participating carrier and is configured to receive, translate and transmit frames from one private Ethernet network to another private Ethernet network. The frame translation is performed by the Ethernet exchanger is based on the profiles of the participating carriers. The profiles are created based on information provided by the participating carriers using templates presented by an online web portal.

Determining virtual adapter access controls in a computing environment

A control component of a computing environment initiates sending of request(s) over a network of the computing environment by an activated virtual adapter. The activated virtual adapter is hosted on a physical adapter of a host system coupled to the network, and is for use by a guest, hosted by the host system, in performing data input and output. The request(s) retrieve access control information from the network indicative of access control(s) enforced in controlling access by the activated virtual adapter to network component(s). The initiating provides indication(s) to the physical adapter, absent involvement of the guest, that the request(s) be sent by the virtual adapter. Based on the initiating, the control component obtains the access control information from the physical adapter, and determines, based on that information, the access control(s) being enforced by the network in controlling access by the activated virtual adapter to the network component(s).

Apparatus and method for scalable and flexible wildcard matching in a network switch

A network switch to support scalable and flexible wildcard matching (WCM) comprises a packet processing pipeline including a plurality of packet processing units each configured to generate a master key for a WCM request to a memory pool and process a packet based on looked up WCM rules. The memory pool includes a plurality of memory groups each configured to maintain a plurality of WCM tables to be searched in one or more SRAM memory tiles of the memory group, format the master key generated by the packet processing unit into a compact key based on a bitmap per user configuration, hash the formatted compact key and perform wildcard matching with the WCM tables stored in the one or more SRAM memory tiles of the memory group using the formatted compact key, process and provide the WCM rules from the wildcard matching to the requesting packet processing unit.

1000BASE-T TRANSMISSION OVER 2-PAIR

A method, an apparatus and a system for gigabit Ethernet (GbE) using only 2 pairs of wires for a single communications link are described. This network communication may be referred to as 2-pair 1000Base-T. GbE using only 2 wire pairs per link may offer increased port density over a conventional 1000Base-T link. As an alternative, 2-pair 1000Base-T may also provide increased link bandwidth over the existing 1000Base-T standard. When a given number of conventional links in a system are replaced by the same number of 2-pair 1000Base-T links, the system bandwidth may also be consequently increased. Transformers and power supplies may be combined with GbE utilizing only two wire pairs to provide power over Ethernet (PoE) solutions.

TRANSPARENT AUTO-NEGOTIATION OF ETHERNET

A system for negotiating Ethernet link settings between interconnected nodes in a network having an Ethernet protocol stack that includes a PCS sub-layer with an auto-negotiation function. The system comprises connecting an intermediate device coupled between two network nodes via optical or copper interfaces, with the link settings between each node and the connected intermediate device being the same, thereby bypassing the auto-negotiation of the PCS sub-layer in the intermediate device. The intermediate device may transparently send negotiation messages from each node to the other during the link negotiation phase without interacting with those messages. Instead of the intermediate device, a single form pluggable (SFP) device may be connected between the two network nodes via optical or copper interfaces on the network side and via an SFP slot on the device side.

VERFAHREN UND VORRICHTUNG ZUR SELEKTIVEN VERWERFUNG VON PAKETEN FÜR BLOCKIERTE AUSGANGSWARTESCHLANGEN IN EINER NETZVERMITTLUNG

MULTI-PORT ETHERNET FRAME SWITCH

An Ethernet switch which includes a plurality of medium access control (MAC) interface logic circuits each coupled to an associated output port operative to perform serial-to-parallel conversion for frames being received from an associated output port and parallel-to-serial conversion for frames being transferred to an associated output port and other interfacing functions. The switch has an internal bus, a buffer memory coupled to each of the MAC interface logic circuits at one end and to the internal bus at another end, a switch central processor coupled to the internal bus and a multi-channel Direct Memory Access (DMA) Controller coupled to the internal bus and to the switch central processor, operative to transfer incoming frames to an external memory and to transfer frames stored temporarily in external memory to their destination in accordance with instructions from the switch central processor. An external memory controller is coupled to the DMA Controller and to an external memory port. An expansion bus interface logic circuit is coupled to said DMA Controller and to an expansion bus port. The switch central processor performs frame address handling and controls transfer of incoming frames to their destination.

SYSTEM AND METHOD FOR DETERMINISTIC I/O WITH ETHERNET BASED INDUSTRIAL NETWORKS

A networking system is discussed. The system may be used for industrial networks, where deterministic behavior is often valued. Boundedmessage travel times may be achieved for a first set of network traffic. Additional traffic may be routed over the networking system without interfering with the message travel times associated with the first set of network traffic. Systems and methods for assigning priority to various sets of network traffic are discussed.

인터페이스 파라미터 동기 방법 및 장치

... 본 발명은 인터페이스 파라미터 동기 방법 및 장치를 공개하고, 그 방법은 SPE의 PW의 제1 세그먼트중의 제1PW의 원격 TPE로부터 송신된 제1PW 관련 정보를 수신하여 기록하는 단계와, 여기서, 제1PW 관련 정보는 라벨 교환 경로를 구축하기 위한 제1PW의 원격 TPE의 인터페이스 파라미터를 휴대하고, 제1PW 관련 정보를 SPE의 PW의 제2 세그먼트의 원격 TPE로 송신하는 단계를 포함한다. 본 발명에 의하면 상대측의 기기가 로컬 기기의 인터페이스 파라미터의 갱신을 즉시 감지할 수 없어 일어나는 문제를 해결하고 상대측의 기기가 정확한 인터페이스 파라미터 값을 이용하여 협상하여 PW를 확립할 수 있다.

Communication device

METHOD AND APPARATUS FOR RESOLVING DEADLOCK OF AUTO-NEGOTIATION SEQUENCE BETWEEN SWITCHES

A transmission repeater has a function of recovery to normal out of the deadlock state of auto-negotiation sequence between switches. The switches exchange auto-negotiation configuration codes via first and second transmission repeaters for a state transition. The first transmission repeater monitors auto-negotiation configuration codes among data transmitted from the opposed switch, and when detecting more than a predetermined number of configuration codes of auto-negotiation having been transmitted during a given period of time, determines that the auto-negotiation sequence between the switches is at a deadlock, and reports it to the second transmission repeater , which then disconnects optical signals from the sending end of the second transmission repeater to the switch for more than twice the propagation time of signals between the switches, thus resolving the deadlock between the switches.

METHOD AND BOARD FOR HIGH-SPEED LINK AUTO-NEGOTIATION

The present invention discloses a method and a board for high-speed link auto-negotiation, belongs to a field of high-speed Ethernet, and includes: setting, by a first board and a second board, a port rate to a public rate supported by both the first board and the second board; sending, by the first board, a first auto-negotiation packet to the second board according to the public rate, where the first auto-negotiation packet carries a rate supported by the first board, so that the second board determines, according to the rate supported by the first board and a rate supported by the second board, a highest rate supported by both the first board and the second board, and sets the port rate to the highest rate; receiving, by the first board, a second auto-negotiation packet that is sent by the second board according to the public rate, where the second auto-negotiation packet carries the rate supported by the second board; determining, by the first board, according to the rate supported ...

METHOD AND APPARATUS FOR RESOLVING DEADLOCK OF AUTO-NEGOTIATION SEQUENCE BETWEEN SWITCHES

A transmission repeater has a function of recovery to normal out of the deadlock state of auto-negotiation sequence between switches. The switches exchange auto-negotiation configuration codes via first and second transmission repeaters for a state transition. The first transmission repeater monitors auto-negotiation configuration codes among data transmitted from the opposed switch, and when detecting more than a predetermined number of configuration codes of auto-negotiation having been transmitted during a given period of time, determines that the auto-negotiation sequence between the switches is at a deadlock, and reports it to the second transmission repeater , which then disconnects optical signals from the sending end of the second transmission repeater to the switch for more than twice the propagation time of signals between the switches, thus resolving the deadlock between the switches.

Power-saving exchanger and power-saving method thereof

一种具有省电功能的交换机包括处理单元和若干交换端口，端口用于连接网络设备。处理单元用于设定每个端口的设置传输速率，即，实时侦测每个端口是否有与网络设备进行数据传输；在侦测到有数据传输时侦测该端口中的发现协议；对发现协议进行解析，得到当前该端口连接的网络设备的身份信息，根据该身份信息确定网络设备的类型；侦测当前端口与网络设备间的实际数据传输速率；根据网络设备的类型及该实际数据传输速率调整端口的设置传输速率，使设置传输速率调整为与实际传输速率相当。本发明还提供一种相关的省电方法。通过本发明的交换机，能够尽可能减少端口的无用电能损耗。

DATA PROCESSING METHOD AND ACCESS NODE

The present invention discloses a data processing method and an access node. The data processing method includes: receiving downlink data; determining whether the downlink data is error data; if so, replacing the downlink data with frame gap having the same bandwidth as the downlink data, and sending the replaced data. Another data processing method includes: receiving uplink data; determining whether the uplink data is self-negotiation data; if so, replacing the uplink data with frame gap having the same bandwidth as the uplink data, sending the replaced data, and responding to the uplink data. The embodiment of the present invention also provides an access node.

Apparatus and method for cascading multiple network switch devices

An arrangement and method of operating a network switch arrangement in a packet switched network connects a plurality of multiport network switches which is in a circular, serial manner so that data is transferable between the network switches only unidirectionally. When it is determined that data is to be transmitted from a first network switch to a port in a second network switch, the data is transmitted over an expansion bus from the first network switch to the second network switch in a continuous stream of data bursts. This extremely fast transmission between the networks switches allows multiple multiport network switches to be cascaded together to effectively form a single network switch with at least twice as many ports.

ETHERNET LINK EXTENSION METHOD AND DEVICE

Ethernet link extension methods and devices provide, in one illustrative embodiment, an Ethernet link extender with physical medium attachment (PMA) circuits each having a transmitter and receiver that communicate with a respective node in a sequence of communication phases. The sequence includes at least an auto-negotiation phase and a subsequent training phase, the phases occurring simultaneously for both PMA circuits. In the auto-negotiation phase, the PMA circuits operate in a pass-through mode, rendering the extender transparent to the two nodes. In the training phase, the PMA circuits operate independently, sending training frames to their respective nodes based in part on received back-channel information and locally-determined training status information. The training phases may be prolonged if needed to provide a simultaneous transition to a frame-forwarding phase of the sequence. 1. An Ethernet link extender that comprises:a first PMA (physical medium attachment) circuit having a transmitter and a receiver that communicate in a sequence of phases with a first node, the sequence including at least an auto-negotiation phase and a subsequent training phase; anda second PMA circuit having a transmitter and a receiver that communicate in said sequence of phases with a second, different node, the phases in said sequence being simultaneous for the first and second PMA circuits,the transmitter of the second PMA circuit being coupled to the receiver of the first PMA circuit during the auto-negotiation phase to retransmit communications received from the first node,the transmitter of the first PMA circuit being coupled to the receiver of the second PMA circuit during the auto-negotiation phase to retransmit communications received from the second node, andthe first and second PMA circuits each including a respective training controller that, during the training phase, generates training frames for transmission by the transmitter of the respective PMA circuit based ...

NETWORK TRANSCEIVER FOR STEERING NETWORK DATA TO SELECTED PATHS BASED ON DETERMINED LINK SPEEDS

A novel method of operating repeaters or other hub devices in a local area network, such as one conforming to Ethernet protocol, in which there are a plurality of repeater interfaces of respectively different data rates for communicating with a link partner on a network medium. The methodology comprises determining the data rate of operation of the link partner, and based on that data rate, automatically steering data between the network medium and a selected one of the repeaters. In a preferred embodiment, a network transceiver comprises one or more physical layer devices (PHY), and a plurality of shared data busses corresponding, respectively, to the speeds of operation of the repeaters, for interconnecting the repeaters and one or more of the physical layer devices. A multiplexer interconnects each of the one or more physical layer devices to a selected one of the plurality of busses, and an auto-negotiation unit controls the multiplexer to interconnect the physical layer devices to ...

Method and apparatus for autosensing LAN vs WAN to determine port type

An apparatus and method for automatically detecting the port type of a remote device are disclosed. One embodiment of the apparatus includes a data rate detection unit to sample a data rate from an incoming data signal. A first frequency configuration unit is operatively coupled with the data rate detection unit to receive a detected data rate from the data rate detection unit. The apparatus also includes an oscillator to generate a plurality of reference clock frequencies. A frequency selector unit is coupled with the oscillator to select one of the reference clock frequencies. A phase lock unit to phase lock the incoming data signal is coupled with the first frequency configuration unit. A data rate select output is coupled with the first frequency configuration unit to operatively link the first frequency configuration unit with a second frequency configuration unit of a remote device.

A method and apparatus for dynamically configuring hardware resource by a generic CPU management interface

A programmable network component for use in a plurality of network devices with a shared architecture, where the programmable network component includes an interface with an external processing unit to provide management interface control between the external processing unit and a network device. The programmable network component also includes a plurality of internal busses each of which is coupled to the programmable network component and to at least one network component. The programmable network component further includes a plurality of external buses each of which is coupled to the programmable network component and to at least one physical interface. The programmable network component is configured to support a plurality of protocols for communication with a plurality of physical interface components and comprises a plurality of programmable registers for determining the status of the plurality of physical interfaces.

Transparent auto-negotiation of ethernet link settings

A system for negotiating Ethernet link settings between interconnected nodes in a network having an Ethernet protocol stack that includes a PCS sub-layer with an auto-negotiation function. The system comprises connecting an intermediate device coupled between two network nodes via optical or copper interfaces, with the link settings between each node and the connected intermediate device being the same, thereby bypassing the auto-negotiation of the PCS sub-layer in the intermediate device. The intermediate device may transparently send negotiation messages from each node to the other during the link negotiation phase without interacting with those messages. Instead of the intermediate device, a single form pluggable (SFP) device may be connected between the two network nodes via optical or copper interfaces on the network side and via an SFP slot on the device side.

Network transceiver having circuitry for referencing transmit data to a selected input clock

A novel system for selectively referencing transmit data transferred from a repeater to a physical layer transmitter via a Media Independent Interface (MII), to an input clock selected depending on a mode of MII operations. A clock select input determines whether transmit data is referenced to a selected input clock or to a MII transmit clock output. An analog phase-locked loop (APLL) is supplied with the selected input clock to produce a signal for driving a wave shaper that converts the MII transmit data into a required format for 10 Mb/s operations.

NETWORK CONNECTION METHOD WITH AUTO-NEGOTIATION MECHANISM, NETWORK APPARATUS HAVING AUTO-NEGOTIATION MECHANISM AND NETWORK CONNECTION METHOD

A network connection method with an auto-negotiation mechanism is applied to a first network apparatus, where the first network apparatus supports a plurality of connection modes, and the method includes: transmitting a plurality of indication signals to a second network apparatus to prepare to establish a link between the first network apparatus and the second network apparatus, where the plurality of indication signals correspond to the plurality of connection modes respectively; counting a number of times that the first network apparatus enters a transmit disable state to generate a counting value; and when the counting value reaches a threshold value, disabling a specific connection mode of the plurality of connection modes supported by the first network apparatus.

Port negotiation between FCoE forwarders

According to an example, port negotiation between FCFs is implemented through initiation of a negotiation to an opposite party corresponding to a VFC port on a FCF within a VLAN corresponding to each VSAN supported by the VFC port on the FCF. The port negotiation also includes a determination of an intersection of the VSAN and the VLAN supported by the VFC port and the VSAN and the VLAN supported by the opposite party corresponding to the VFC port on the FCF and performance of an ELP negotiation within the intersection of the VSAN and the VLAN.

SYSTEMS AND METHODS FOR COMMUNICATION AND/OR CONTROL OF SCALABLE, MODULAR NETWORK NODES

Methods and Systems are described for control at/of a network node. The network node can include a control module and first and second modules coupled to the control module. The first module can be configured to select first input/output (I/O) types of a field device coupled at an I/O interface of the network node. The second module can be configured to select a second I/O types of the field device. The first and second modules can be coupled to the I/O interface through a field device coupler. 1. A control system , the control system comprising:a control node; and collect a first set of inputs from a coupled field device for a first duration;', 'monitor the collected first set of inputs for a fault condition;', 'on detection of a fault condition, collect a second set of inputs for a second duration; and', 'identify an abnormal condition using the collected first set of inputs and the collected second set of inputs., 'a Single Signal Input/Output (SSIO) module coupled to the control node, the SSIO module configured to2. The system of claim 1 , wherein the SSIO module is further installed on a modular claim 1 , mounting structure at a backbone and a field device coupler.3. The system of claim 2 , wherein the mounting structure is a DIN rail mounted baseplate or a DIN rail.4. The system of claim 1 , wherein the SSIO module is configured to access network data stored at a centralized datastore hosted at the control module.5. The system of claim 1 , wherein the SSIO module is configured to access network data stored at the control module and/or at other network nodes.6. The system of claim 1 , wherein the SSIO module is further configured to:generate, on detection of the fault condition, SoE and/or TDR/TDA reports using the first and second sets of inputs;identify the abnormal condition using the generated SoE and/or TDR/TDA reports; andimplement a counter measure based on the identified abnormal condition.7. A control system claim 1 , the control system comprising:a ...

REGISTER READ AND WRITE OPERATIONS OVER AUTO NEGOTIATION NEXT PAGES

Methods and apparatus for register Read and Write operations over Auto Negotiation Next Pages. Register Reads and Writes are implemented using sequences of Auto Negotiation (AN) Next Page messages. The embodiments define mechanisms to use AN Next Pages to carry write and read instructions. It defines a bi-directional communication mechanism to allow writes to be confirmed and read data to be returned to the requestor. Sequences of several AN Next Pages are used to assemble full address and data fields, when necessary. Two link partners (endpoints or an endpoint and an intermediate partner) exchange AN Next Pages with address and data information. The method uses a unique device address assigned to each device discovered in the serial chain to enable write and read operations to specific devices. 130-. (canceled)31. A computer-implemented method , comprising ,employing a first sequence of Auto-Negotiation (AN) Next Pages to write data to a register in an intermediate device from among a plurality of serially-connected intermediate devices in a communication link between first and second endpoint devices including the plurality of serially-connected intermediate devices; andemploying a second sequence of AN Next Pages to read data from the register in the intermediate device.32. The computer-implemented method of claim 31 , wherein the first sequence of AN Next Pages to write data to the register in the intermediate device comprise:a first Next Page including a device address of the intermediate device;a second Next Page including an Management Data Input/Output (MDIO) address corresponding with a register on the intermediate device to which Write data is to be written; anda third Next Page including data to be written to the register at the MDIO address.33. The computer-implemented method of claim 32 , wherein each of the first claim 32 , second claim 32 , and third Next Pages respectively include one or more Next Page bits that are used to identify that Next Page as ...

Network transceiver having media independent interface

A novel network transceiver having a Media Independent Interface (MII) operating at 10 Mb/s or 100 Mb/s for connecting the transceiver to a repeater or hub device. A serial interface select signal can be asserted to configure the MII to operate as a General Purpose Serial Interface (GPSI) for 10 Mb/s data. The least significant transmit and receive data pins of the MII are respectively mapped to transmit and receive data pins of the GPSI. A circuit for enabling MII to operate in a GPSI mode has a transmit multiplexer controlled by the serial interface select signal to bypass a parallel-to-serial converter that transforms parallel transmit MII data into a serial data stream, and a receive multiplexer controlled by the serial interface select signal to bypass a serial-to-parallel converter that transforms serial receive data stream into parallel receive MII data.

METHOD AND SYSTEM FOR OPTOELECTRONIC MATCHING

The invention discloses a method and a system for optoelectronic matching, and belongs to the field of communication technologies. The method comprises the steps of: S1, enabling an electrical port of a first optoelectronic device to auto-negotiate with a first electrical port to obtain the highest supported speed of the first electrical port, and enabling an electrical port of a second optoelectronic device to auto-negotiate with a second electrical port to obtain the highest supported speed of the second electrical port; S2, encapsulating, by an optical port of an optoelectronic device, a current speed and the negotiated highest supported speed of an opposite end in a transmission protocol, and sending the same to an optical port of another optoelectronic device; S3, obtaining a target speed based on the highest supported speed of the first electrical port and the highest supported speed of the second electrical port; S4, determining whether the current speed is equal to the target speed ...

Sender-Empfänger für die Steuerung von Netzdaten zum einem von der Linkgeschwindigkeit bestimmten Pfad

PROCESS AND SYSTEM Of ASSOCIATION Of EQUIPMENT WITH FOOTBRIDGE

La présente invention concerne un procédé et système d'association d'un équipement avec une passerelle, ladite passerelle étant prévue pour communiquer, d'une part, avec l'équipement via un réseau de communication et, d'autre part, avec un autre équipement dit serveur. Le procédé est caractérisé en ce qu'il comporte une étape d'envoi, par le serveur et à destination de la passerelle, d'une autorisation pour qu'un équipement puisse s'associer avec cette passerelle.

METHOD FOR SETTING LINK SPEED OF DUAL PORT SWITCH

The present invention relates to a method for setting a link speed of a dual port switch, and more specifically, to a method for setting a link speed of a dual port switch that controls a link speed of each port included in a dual port switch using a cut-through packet switching method equally. According to an embodiment of the present invention, the method for setting a link speed of a dual port switch, which is for setting a link speed of a first port and a second port included in the dual port switch, comprises the following steps of: receiving a link speed setting completion signal from each of the first port and the second port; checking a link speed of the first port and a link speed of the second port if the link speed setting completion signal is received; comparing the checked link speed of the first port with the checked link speed of the second port; and controlling the link speed of the first port to be equal to the link speed of the second port by changing a limit link speed ...

Technologies for autonegotiating 10G and 1G serial communications over copper cable

Technologies for autonegotiation of communications operational modes over copper cable include a network port logic having a communication link coupled to a remote link partner. The network port logic may start an autonegotiation protocol upon reset, when the link is broken, or upon manual renegotiation. The network port logic transmits an autonegotiation page to the remote link partner that indicates single-lane communications ability over copper cable. The network port logic receives an autonegotiation page from the link partner indicating single-lane communications ability over copper cable. If the network port logic and link partner have a common single-lane communication ability, the link may be activated. The autonegotiation pages may be base pages or next pages. The single-lane communication ability may be indicated by one or more bits of the autonegotation pages. The link may be established at 1 gigabit or 10 gigabits per second. Other embodiments are described and claimed.

SYSTEMS AND METHODS FOR COMMUNICATION AND/OR CONTROL OF SCALABLE, MODULAR NETWORK NODES

Methods and Systems are described for control at/of a network node. The network node can include a control module and first and second modules coupled to the control module. The first module can be configured to select first input/output (I/O) types of a field device coupled at an I/O interface of the network node. The second module can be configured to select a second I/O types of the field device. The first and second modules can be coupled to the I/O interface through a field device coupler. 1. A modular network node , the network node comprising:a control module;a first module coupled to the control module, the first module being configured to select a first input type and/or a first output type of a first field device coupled at a first input/output (I/O) interface of the modular network node; anda second module coupled to the control module, the second module being configured to select a second input type and/or output type of the first field device coupled at the first I/O interface of the modular network node,wherein the first module and/or the second module are coupled to the first I/O interface through a first field device coupler.2. The modular network node of claim 1 , wherein the modular network node is configured as a Single Signal Input/Output (SSIO) module.3. The modular network node of claim 2 , wherein the first module is configured as a Universal Input/Output (UIO) module and the second module is configured as an Ethernet/Serial module.4. The modular network node of claim 3 , wherein the first input type and/or output type is a signal that includes at least one of: analog input/output (AI/AO) signals claim 3 , discrete input/output (DI/DO) signals claim 3 , digital in/digital out signals claim 3 , 4-20 Ma in/out+HART signals claim 3 , HART in/out signals claim 3 , FOXCOM in/out signals claim 3 , pulse signals claim 3 , NAMUR signals claim 3 , T/C signals claim 3 , RTD signals claim 3 , and/or optical networking signals.5. The modular network node ...

Method and device for providing priority access to a shared access network

An interface that provides priority access to a network is disclosed. The interface includes several ports. Preferably the ports are Ethernet compliant ports. At least one of the ports transmits high priority frames in advance of lower priority frames. High priority frames are preferably buffered. Buffered high priority frames pre-empt transmission of lower priority frames at the port. If the port is operating half duplex using CSMA/CD, transmission of high priority frames pre-empts re-transmission of lower priority frames for which a collision has been detected. Additionally, in the case of frames to be broadcast to multiple ports, buffered frames may be transmitted at varying times at the ports at which the frame is to be broadcast. The interface may further buffer frames received at each port. As the buffer fills, flow of frames into the interface is preferably limited on a per-port basis, based on the number of frames already buffered for a particular port. The interface is particularly ...

Baseboard management controller switching method for sharing network protocol

A method for switching a shared network protocol of a baseboard management controller comprises: determining whether a mainboard is connected with an external network card by a baseboard management controller; determining whether an external network card network port of the external network card is connected with a network cable by the baseboard management controller when the mainboard is connected with the external network card; connecting a physical link of a shared network protocol of the baseboard management controller with the external network card network port when the external network card network port is connected with the network cable; and connecting the physical link of the shared network protocol of the baseboard management controller with a mainboard network port of the mainboard when the external network card network port is not connected with the network cable. As a result, the shared network protocol can be maintained in normal operation.

Integrated multiport switch having shared media access control circuitry

An integrated multiport switch (IMS) in which one combinational logic and register arrangement is provided for executing similar media access control (MAC) functions for a plurality of switch ports. The current access state at each of a plurality of switch ports is maintained at a single state storage location, whereby access of a stored port MAC state and update thereof is simplified. Access to state storage in coordination with the single common combinational logic and register arrangement enables MAC functions for each of the plurality of ports to be performed on a time shared basis to maximize efficiency of use of chip resources and architecture space.

Apparatus, system, and method for auto-negotiation

Methods, systems, and apparatuses, including electrical circuitry, are described for auto-negotiation. Active cables, active backplanes, and line cards may include one or more instances of electrical circuitry and/or integrated circuits that intercept advertisements of standard auto-negotiation protocol signaling from an initiating device for establishment of communication links with a receiving device. Auto negotiation information in the intercepted signaling may be translated and encoded into signaling in accordance with the capabilities of the receiving device. Active cables and active backplanes may also include one or more connection components between instances of electrical circuitry and/or integrated circuits to provide high-speed transmission of data packets encapsulating the auto-negotiation information in a format that differs from the standard auto-negotiation protocol.

Method and apparatus for transmitting data at different data transfer rates using multiple interconnected hubs

A network hub which allows the transmission of data at varying data transfer rates. Data is divided into different transfer protocols and converted by an exchange unit to transform the data of different groups into appropriate speed networks.

APPARATUS AND METHOD FOR SCALABLE AND FLEXIBLE WILDCARD MATCHING IN A NETWORK SWITCH

A network switch to support scalable and flexible wildcard matching (WCM) comprises a packet processing pipeline including a plurality of packet processing units each configured to generate a master key for a WCM request to a memory pool and process a packet based on looked up WCM rules. The memory pool includes a plurality of memory groups each configured to maintain a plurality of WCM tables to be searched in one or more SRAM memory tiles of the memory group, format the master key generated by the packet processing unit into a compact key based on a bitmap per user configuration, hash the formatted compact key and perform wildcard matching with the WCM tables stored in the one or more SRAM memory tiles of the memory group using the formatted compact key, process and provide the WCM rules from the wildcard matching to the requesting packet processing unit. 1. A network switch to support scalable and flexible wildcard matching (WCM) , comprising: generate and provide a master key for a WCM request to a memory pool;', 'process the received packet based on WCM rules of the WCM request returned from the memory pool;, 'a packet processing pipeline including a plurality of packet processing units configured to process a received packet through multiple packet processing stages, wherein each of the packet processing units is configured to'} maintain a plurality of WCM tables to be searched in one or more SRAM memory tiles of the memory group;', 'accept and format the master key generated by the packet processing unit into a compact key based on a bitmap per user configuration, wherein the compact key is shorted in size than the master key;', "hash the formatted compact key and perform wildcard matching with the WCM tables stored in the one or more SRAM memory tiles of the memory group using the formatted compact key, wherein certain fields in the compact key are don't care fields for the wildcard matching;", 'process and provide the WCM rules from the wildcard matching to ...

Data transmission method and apparatus for terminal

Embodiments of the present invention disclose a data transmission method and apparatus for a terminal. The terminal exchanges data of an application with a server through a first port by using a first access node; when one port in a second port set is in an enabled state, the terminal accesses one access node in a candidate access node set through the enabled port in the second port set, and exchanges, based on the Multipath TCP, the data of the application with the server by using an access node corresponding to the enabled port.

System and method for automatic detection of network port configuration mismatch

A method for automatically detecting a port configuration mismatch between a switch and its peer switch comprises listening, by the switch, to its peer switch's advertisement of its duplex setting, generating a warning notification in response to the peer switch advertising as capable of only operating at half duplex and the switch being set to an auto-negotiate setting, and transmitting the warning notification to a user.

Kommunikationsvorrichtung und Kommunikationsverfahren

Kommunikationsvorrichtung, die aufweist:eine Bitübertragungsschichtschaltung (13, 14), die als Bitübertragungsschicht für eine Kommunikation mit einem Kommunikationsziel (2, 3) fungiert, um eine Kommunikationseinstellungsinformation zu bestimmen, die eine physikalische Einstellung einer Kommunikation mit dem Kommunikationsziel (2, 3) darstellt,eine nichtflüchtige Speichereinheit (17), undeine Steuereinheit (16), die die Bitübertragungsschichtschaltung (13, 14) steuert, wobeidie Steuereinheit (16)in einem Betriebsmodus der Kommunikationsvorrichtung die Bitübertragungsschichtschaltung (13, 14) so steuert, dass die mit dem Kommunikationsziel (2, 3) bestimmte Kommunikationseinstellungsinformation in die Speichereinheit geschrieben wird, undin einem anderen Betriebsmodus der Kommunikationsvorrichtung die in dem einen Betriebsmodus in die Speichereinheit geschriebene Kommunikationseinstellungsinformation in ein Register (13a, 14a) der Bitübertragungsschichtschaltung (13, 14) schreibt,wobei die ...

By reducing the channel medium in the multi-channel automatic negotiation system and method

一种通过减少通道的介质进行多通道自动协商的系统、方法和设备。通过M通道通信接口进行的自动协商可以与通过N通道通信接口进行的自动协商相协调，其中，M>N。递归式自动协商过程将从所述M通道通信接口开始，并且防止所述递归式自动协商过程完成，直至通过所述N通道通信接口的自动协商过程完成。

HIGH-SPEED LINK SELF-NEGOTIATION METHOD AND SINGLE BOARD

A high-speed link self-negotiation method and single board are disclosed, which belong to the field of high-speed Ethernet. The method includes: a first single board and a second single board set the port speed to a common speed supported by both the first single board and the second single board; the first single board sends a first self-negotiation message, which carries the speed supported by the first single board, to the second single board according to the common speed, so as to make the second single board determine, according to the speed supported by the first single board and the speed supported by the second single board, the highest speed supported by both the first single board and the second single board and set the port speed to the highest speed; the first single board receives a second self-negotiation message which is sent by the second single board according to the common speed and carries the speed supported by the second single board; according to the speed supported ...

METHOD AND APPARATUS FOR SELECTIVELY DISCARDING PACKET FOR BLOCKED OUTPUT QUEUES IN THE NETWORK SWITCH

An apparatus and method of controlling the transmission of copies of a frame of data from a multiport device, such as a multiport network switch, determines which ones of the ports are designated to transmit a copy of a multicopy frame received at the switch. The switch then determines which of these designated ports are not available to transmit a copy of the frame. The copies are transmitted from those designated ports that are available to transmit a copy of the multicopy frame, while the copies are discarded for those designated ports that are not available to transmit a copy of that multicopy frame.

Auto-negotiation for multiple ports using shared logic

A data communication device having multiple ports is provided with an auto-negotiation system for performing auto-negotiation with multiple link partners connected to the ports. The auto-negotiation system has a memory and an auto-negotiation unit including transmit, receive and arbitration state machines for performing transmit, receive and arbitration state diagrams compliant with the IEEE 802.3 Standard. The auto-negotiation unit operates in a time-division multiplexing mode using successive time slots for supporting auto-negotiation operations for different ports. The memory is used for storing state diagram variables for a port in a time interval between the time slots assigned to that port.

Bandwidth efficiency in cascaded scheme

Network switch modules are cascaded in a prescribed sequence to support higher port requirements. The network switch modules may circulate a received frame indefinitely if the frame is not destined for any one of the output ports of the cascaded arrangement of network switch modules. Frame forwarding logic within each of the cascaded network switch modules is employed to determine when a network switch module should cease forwarding the received frame. Specifically, the frame forwarding logic takes the frame out of circulation based upon the sequence identifier of the network switch module and an embedded identifier associated with the frame.

SYSTEMS AND METHODS FOR COMMUNICATION AND/OR CONTROL OF SCALABLE, MODULAR NETWORK NODES

Methods and Systems are described for control at/of a network node. The network node can include a control module and first and second modules coupled to the control module. The first module can be configured to select first input/output (I/O) types of a field device coupled at an I/O interface of the network node. The second module can be configured to select a second I/O types of the field device. The first and second modules can be coupled to the I/O interface through a field device coupler.

Long-reach Ethernet for 1000BASE-T and 10GBASE-T

A network interface module includes a physical layer module and a data rate module. The physical layer module is configured to transmit first signals to a network device via a cable at a first data rate while conforming to Ethernet baseband characteristics for the first data rate, and at least one of determine a characteristic of the cable, or perform an autonegotiation process with the network device. The data rate module is configured to select a second data rate based on at least one of the characteristic of the cable, or results of the autonegotiation process. The second data rate is slower than the first data rate. The physical layer module is configured to transmit second signals to the network device at the second data rate while conforming to the Ethernet baseband characteristics for the first data rate.

METHOD AND APPARATUS COMPATIBLE WITH 10GE LAN PORT AND WAN PORT

A method and apparatus compatible with 10 Gigabit Ethernet (GE) Local Area Network (LAN) port and Wide Area Network (WAN) port are disclosed, which are applied to a 10GE equipment containing a 10GE physical layer channel compatible with 10GE LAN port operation mode and 10GE WAN port operation mode. The method includes the following steps: setting the 10GE physical layer channel into a corresponding operation mode after the 10GE equipment receives a mode selection command sent by an upper layer according to operation mode information carried in the command, and providing an operation clock needed by the channel when working in this operation mode. The apparatus comprises a control unit, a configurable clock unit and a 10GE physical layer channel. After adopting the invention, the 10GE port not only can connect the 10GE LAN service but also can connect the 10GE WAN service, thereby realizing the application of the 10GE equipment in LAN and WAN, enriching the functions of the port without ...

METHOD AND SYSTEM FOR COMBINING A DEVICE WITH A GATEWAY

The invention relates to a method and to system for combining a device with a gateway. According to the invention, said gateway communicates with the device via a communication network and moreover communicates with another so-called "server" device. The method is characterized by comprising a step for sending, via the server to the gateway, a permission for a device to be able to be combined with said gateway.

NETWORK SWITCH

L'invention concerne un commutateur de réseau, permettant de commuter des paquets d'une source vers une destination, qui comprend un port source destiné à recevoir un paquet entrant à partir d'une source, un port destinataire doté d'un chemin acheminant ledit paquet vers une destination, et une unité de filtre destinée à construire et à appliquer un filtre à des champs sélectionnés du paquet entrant. L'unité de filtre comprend une logique de filtrage permettant de sélectionner des champs désirés du paquet entrant, et de copier des informations de champs sélectionnés à partir de ladite unité. La logique de filtrage construit une valeur de champ en fonction des champs sélectionnés, et applique une pluralité de masques de champs stockés à la valeur de champ. Le commutateur comprend une table de règles contenant une pluralité de règles. La logique de filtrage est configurée de façon à effectuer des recherches de table de règles, afin de déterminer les actions à entreprendre en fonction du résultat ...

Method and apparatus for resolving deadlock of auto-negotiation sequence between switches

A transmission repeater has a function of recovery to normal out of the deadlock state of auto-negotiation sequence between switches. The switches exchange auto-negotiation configuration codes via first and second transmission repeaters for a state transition. The first transmission repeater monitors auto-negotiation configuration codes among data transmitted from the opposed switch, and when detecting more than a predetermined number of configuration codes of auto-negotiation having been transmitted during a given period of time, determines that the auto-negotiation sequence between the switches is at a deadlock, and reports it to the second transmission repeater, which then disconnects optical signals from the sending end of the second transmission repeater to the switch for more than twice the propagation time of signals between the switches, thus resolving the deadlock between the switches.

Method and apparatus for resolving deadlock of auto-negotiation sequence between switches

A transmission repeater has a function of recovery to normal out of the deadlock state of auto-negotiation sequence between switches. The switches exchange auto-negotiation configuration codes via first and second transmission repeaters for a state transition. The first transmission repeater monitors auto-negotiation configuration codes among data transmitted from the opposed switch, and when detecting more than a predetermined number of configuration codes of auto-negotiation having been transmitted during a given period of time, determines that the auto-negotiation sequence between the switches is at a deadlock, and reports it to the second transmission repeater, which then disconnects optical signals from the sending end of the second transmission repeater to the switch for more than twice the propagation time of signals between the switches, thus resolving the deadlock between the switches.

Netzwerk-Sende-Empfänger mit medienunabhängiger Schnittstelle

Management information base (MIB) accumulation processor

An integrated multiport switch (IMS) in which an on-chip management information base (MIB) accumulation processor enables monitoring of a significantly larger number of MIB objects to be stored in external memory while minimizing media access controller (MAC) complexity. A MAC for each port in the IMS outputs a MIB report for each transmission or reception of data according to a specific encoded format to a MIB engine. The MIB engine decodes the MIB report into a plurality of associated MIB objects, which are temporarily accumulated until the external memory is updated. The MIB engine initiates the stored MIB value updating process by retrieving the values from the external memory and adding the accumulated MIB objects to the retrieved values. The updated MIB objects are then transmitted back to the external memory for storage therein and the MIB engine object values are reset.

Ethernet auto-negotiation with parallel detect for 10G DAC or other non-auto-negotiated modes

Methods and apparatus for Ethernet auto-negotiation (AN) with parallel detect for 10G DAC or other non-auto-negotiated modes. AN base pages are transmitted from an Ethernet apparatus to advertise the ability to support at least one Institute of Electrical and Electronics Engineers (IEEE) 802.3 Ethernet specification supporting AN. A receiver and associated processing circuitry is configured to perform two detection modes in parallel, including a first detection mode that looks for a valid signal transmitted from an Ethernet link peer that does not support AN and a second detection mode looking for AN pages from an IEEE 802.3 Ethernet link peer that supports AN. If the link peer does not support AN, an Ethernet link is set up to use signaling in accordance with the Ethernet specification that does not support AN. If the link peer supports AN, an Ethernet link is set up using a corresponding IEEE 802.3 Ethernet link supporting AN. Supported non-AN Ethernet links include 10G DAC links.

Network switch for transmitting data according to an auto-negotiated data rate

A network switch includes a plurality of ports to communicate via a communication channel. Each of the plurality of ports includes an auto-negotiation circuit to negotiate a first data transmission rate with a network device in communication with the network switch via the communication channel, a transceiver circuit to receive, from the network switch, data via the communication channel at the negotiated first data transmission rate, and a transmitter/encoder circuit. The transmitter/encoder circuit is to receive the negotiated first data transmission rate from the auto-negotiation circuit, receive the data from the transceiver circuit, and selectively replicate portions of the data received from the transceiver circuit to transmit the data at a second data transmission rate that is different from the negotiated first data transmission rate.

PORT NEGOTIATION BETWEEN FCOE FORWARDERS

According to an example, port negotiation between FCFs is implemented through initiation of a negotiation to an opposite party corresponding to a VFC port on a FCF within a VLAN corresponding to each VSAN supported by the VFC port on the FCF. The port negotiation also includes a determination of an intersection of the VSAN and the VLAN supported by the VFC port and the VSAN and the VLAN supported by the opposite party corresponding to the VFC port on the FCF and performance of an ELP negotiation within the intersection of the VSAN and the VLAN. 1. A method for implementing port negotiation between Fibre Channel over Ethernet (FCoE) Forwarders (FCFs) , comprising:initiating, by a FCF, a negotiation to an opposite party corresponding to a Virtual Fiber Channel (VFC) port on the FCF within a Virtual Local Area Network (VLAN) corresponding to each Virtual Storage Area Network (VSAN) supported by the VFC port on the FCF;determining, by the FCF, an intersection of the VSAN and the VLAN supported by the VFC port on the FCF and the VSAN and the VLAN supported by the opposite party corresponding to the VFC port on the FCF; andperforming, by the FCF, an Exchange Link Parameter (ELP) negotiation within the intersection of the VSAN and the VLAN.2. The method of claim 1 , wherein initiating a negotiation to an opposite party corresponding to a VFC port on the FCF comprises:sending, by the FCF, a FCoE Initialization Protocol (FIP) Discovery Solicitation to the opposite party corresponding to the VFC port on the FCF;determining, by the FCF, an intersection of the VSAN and the VLAN supported by the VFC port on the FCF and the VSAN and the VLAN supported by the opposite party corresponding to the VFC port on the FCF comprises:after FIP Discovery Advertisements sent by the opposite party are received by the VFC port on the FCF, if it is determined that the VFC port on the FCF supports the VSAN notified by the FIP Discovery Advertisements and the VFC port on the FCF corresponding to ...

NETWORK ELEMENT FEDERATION CONTROLLER AND FORWARDING BOX

A controller network device receives command input for providing services over a service provider network and receives a verification request to verify an initial output of a control communication sent to a forwarding network device by a second controller network device in a group of peer controller network devices. The controller network device receives, from other controller network devices in the group of peer controller network devices, results that are responsive to the verification request and based on the command input and identifies a majority output from the results. The controller network device compares the initial output from the second controller network device to the majority output to determine that the initial output failed a verification vote and determines when a threshold number of control communications from the second controller network device, including the initial output, have failed verification votes. 1. A method , comprising:receiving, by a first controller network device in a group of peer controller network devices, command input for providing services over a service provider network;receiving, by the first controller network device, a verification request to verify an initial output of a control communication sent to a forwarding network device by a second controller network device in the group of peer controller network devices;receiving, by the first controller network device and from other controller network devices in the group of peer controller network devices, results that are responsive to the verification request and based on the command input;identifying, by the first controller network device, a majority output from the results;comparing, by the first controller network device, the initial output from the second controller network device to the majority output to determine that the initial output failed a verification vote; anddetermining, by the first controller network device, when a threshold number of control ...

Transparent auto-negotiation of ethernet

A system for negotiating Ethernet link settings between interconnected nodes in a network having an Ethernet protocol stack that includes a PCS sub-layer with an auto-negotiation function. The system comprises connecting an intermediate device coupled between two network nodes via optical or copper interfaces, with the link settings between each node and the connected intermediate device being the same, thereby bypassing the auto-negotiation of the PCS sub-layer in the intermediate device. The intermediate device may transparently send negotiation messages from each node to the other during the link negotiation phase without interacting with those messages. Instead of the intermediate device, a single form pluggable (SFP) device may be connected between the two network nodes via optical or copper interfaces on the network side and via an SFP slot on the device side.

Ethernet auto-negotiation with parallel detect for 10g dac or other non-auto-negotiated modes

Methods and apparatus for Ethernet auto-negotiation (AN) with parallel detect for 10G DAC or other non-auto-negotiated modes. AN base pages are transmitted from an Ethernet apparatus to advertise the ability to support at least one Institute of Electrical and Electronics Engineers (IEEE) 802.3 Ethernet specification supporting AN. A receiver and associated processing circuitry is configured to perform two detection modes in parallel, including a first detection mode that looks for a valid signal transmitted from an Ethernet link peer that does not support AN and a second detection mode looking for AN pages from an IEEE 802.3 Ethernet link peer that supports AN. If the link peer does not support AN, an Ethernet link is set up to use signaling in accordance with the Ethernet specification that does not support AN. If the link peer supports AN, an Ethernet link is set up using a corresponding IEEE 802.3 Ethernet link supporting AN. Supported non-AN Ethernet links include 10G DAC links.

Data Routing Method and Apparatus

A data routing method used to implement data routing in a communications system in which a plurality of networks that use different data bearer protocols are integrated is produced. The method includes: a routing apparatus receives data by using an input port, and determines a data bearer protocol attribute of the input port; the routing apparatus determines an attribute of the data based on the data bearer protocol attribute of the input port; the routing apparatus determines based on the attribute of the data, a data bearer protocol attribute of an output port used to output the data; and determines based on the data bearer protocol attribute of the output port, the output port used to output the data, and outputting the data by using the determined output port. 1. A method , comprising:receiving, by an apparatus, data using an input port, and determining a data bearer protocol attribute of the input port; when the data bearer protocol attribute of the input port is a common public radio interface (CPRI) protocol, the attribute of the data is an Internet Protocol (IP) attribute or an in-phase/quadrature (I/Q) attribute; or', 'when the data bearer protocol attribute of the input port is an Ethernet protocol, the attribute of the data is an IP attribute;, 'determining, by the apparatus, an attribute of the data based on the data bearer protocol attribute of the input port, wherein when the attribute of the data is the IP attribute, the data bearer protocol attribute of the output port to be used to output the data is determined to be the CPRI protocol or the Ethernet protocol; or', 'when the attribute of the data is the I/Q attribute, the data bearer protocol attribute of the output port to be used to output the data is determined to be the CPRI protocol;, 'determining, by the apparatus based on the attribute of the data, a data bearer protocol attribute of an output port to be used to output the data, whereindetermining, by the apparatus based on the data bearer ...

AUTOMATIC ENABLING OR DISABILING OF AUTO-NEGOTIATION BETWEEN NETWORK DEVICES

A first network device may determine a first auto-negotiation capability associated with the first network device. The first auto-negotiation capability may indicate whether the first network device is configured to establish a communication link with a second network device using auto-negotiation of transmission capabilities. The first network device may determine a second auto-negotiation capability associated with the second network device. The second auto-negotiation capability may indicate whether the second network device is configured to establish the communication link with the first network device using auto-negotiation of the transmission capabilities. The first network device may determine that an auto-negotiation process failed to establish the communication link between the first network device and the second network device. The first network device may enable or disable auto-negotiation on the first network device based on determining that the auto-negotiation process failed, and based on the first auto-negotiation capability and the second auto-negotiation capability. 1. A first network device , comprising: [ 'the first auto-negotiation capability indicating whether the first network device is configured to establish a communication link with a second network device using auto-negotiation of one or more transmission capabilities;', 'determine a first auto-negotiation capability associated with the first network device,'}, 'the second auto-negotiation capability indicating whether the second network device is configured to establish the communication link with the first network device using auto-negotiation of the one or more transmission capabilities;', 'determine a second auto-negotiation capability associated with the second network device,'}, 'determine that an auto-negotiation process failed to establish the communication link between the first network device and the second network device; and', 'selectively enable or disable auto-negotiation on ...

Enhancing Port Link-up Time

A network element includes at least one communication port and a processor. The communication port is configured to communicate with a peer communication port of a peer network element. The processor is configured to support a full-boot mode and a fast-boot mode, to establish, by negotiation with the peer network element, whether the fast-boot mode is supported both for the communication port and for the peer communication port, and, in response to finding that the fast-boot mode is supported both for the communication port and for the peer communication port, to coordinate with the peer network element a boot of the communication port and of the peer communication port, both using the fast-boot mode.

Baseboard management controller switching method for sharing network protocol

A method for switching a shared network protocol of a baseboard management controller comprises: determining whether a mainboard is connected with an external network card by a baseboard management controller; determining whether an external network card network port of the external network card is connected with a network cable by the baseboard management controller when the mainboard is connected with the external network card; connecting a physical link of a shared network protocol of the baseboard management controller with the external network card network port when the external network card network port is connected with the network cable; and connecting the physical link of the shared network protocol of the baseboard management controller with a mainboard network port of the mainboard when the external network card network port is not connected with the network cable. As a result, the shared network protocol can be maintained in normal operation.

Vertical Converged Framework

According to an example, a Controlling Bridge (CB) receives a VCF registration request packet sent by a Port Extender (PE) and sets interface state of a VCF interface receiving the VCF registration request packet from initial state to blocked state. The CB returns a VCF registration response packet to the PE and receives a VCF registration acknowledge packet returned by the PE after the PE receives the VCF registration response packet. The CB sets interface state of a VCF interface sending the VCF registration request packet from blocked state to forwarding state; sets interface state of the VCF interface receiving the VCF registration request packet as forwarding state, and establishing successfully a VCF link with the PE. 1. A method for building a Vertical Converged Framework , VCF , comprising:receiving, by a Controlling Bridge, CB, a VCF registration request packet sent by a Port Extender, PE;setting, by the CB, interface state of a VCF interface receiving the VCF registration request packet from initial state to blocked state;returning, by the CB, a VCF registration response packet to the PE;receiving, by the CB, a VCF registration acknowledge packet returned by the PE after the PE receives the VCF registration response packet and sets interface state of a VCF interface sending the VCF registration request packet from blocked state to forwarding state; andsetting, by the CB, interface state of the VCF interface receiving the VCF registration request packet as forwarding state, and establishing successfully a VCF link with the PE.2. The method according to claim 1 , wherein before receiving the VCF registration request packet claim 1 , further comprising:receiving, by the CB, a mode switch request packet via the VCF interface receiving the VCF registration request packet and being in initial state; where the mode switch request packet is sent by the PE via the VCF interface sending the VCF registration request packet;enabling, by the CB, a VCF feature of the ...

ICM Foot-Print with UPOE Support

Power Over Ethernet (POE)/universal power over Ethernet (UPoE) may be enabled at multigigabit port-channel connections. This may allow for additional speed support in auto-negotiation messages while employing multigigabit speeds. An integrated connector module (referred to herein as a “ICM”) compatible with UPoE with a modified local physical layer (PHY) circuit may be capable of supporting multi-gigabit data rates (such as between 1 G to 10 G, e.g., 2.5 G and 5 G) as to not limit the data rates to 1 G. The ICM may provide multi-gig data transmission through a first plurality of pins comprising a multi-gig data pin area. Furthermore, the ICM may provide UPoE power to support the multi-gig transmission through a second plurality of pins comprising a UPoE power pin area. 1. A system comprising:an integrated connector module comprising:a multi-gig pin area comprising a plurality of signal pins capable of supporting multi-gigabit data rates;a UPoE pin area comprising of four pins enabling universal power over Ethernet (UPoE).2. The system of claim 1 , wherein the multi-gig pin area comprises 14 signal pins.3. The system of claim 2 , wherein 5channel Common Mode sense pins are removed from the multi-gig pin area.4. The system of claim 1 , wherein the UPoE pin area is positioned above the multi-gig pin area.5. The system of claim 1 , wherein the UPoE pin area is positioned below the multi-gig pin area.6. The system of claim 1 , wherein the UPoE pin area is positioned to the side of the multi-gig pin area.7. The system of claim 1 , wherein twelve pins enable data transmission in the multi-gig pin area at a plurality of the following Ethernet data rates: 10 Megabit claim 1 , 100 Megabit claim 1 , 1 Gigabit claim 1 , 2.5 Gigabit claim 1 , 5 Gigabit claim 1 , and 10 Gigabit.8. The system of claim 1 , wherein multi-gig pin area and the UPoE pin area are separated by a clearance at least far enough to meet IEEE high voltage (2 kV) safety isolation measurements.9. The system of ...

Network device and information transmission method

The application provides a network device, which includes: a main control board and a service board, where the main control board includes a processor and a switching chip, and the service board includes a physical layer component. The switching chip is connected to the physical layer component by using a system bus. The system bus consists of a SerDes link, and is configured to transmit service data and control information of a port of the physical layer component. The processor controls the port of the physical layer component by using the control information of the port of the physical layer component. The network device transmits the service data and the control information by using the system bus, so that the service board does not need to set a CPU processing the control information, thereby expanding an interface flexibly, and reducing device complexity and hardware costs.

Method of ethernet auto-negotiation over one cable

Examples include a method of identifying single twisted pair cable Ethernet auto-negotiation requests or double twisted pair cables Ethernet auto-negotiation requests using detection of message time interval patterns. The method includes receiving, by a first Ethernet device, a plurality of messages transmitted by a second Ethernet device over a single twisted pair cable connecting the first Ethernet device and the second Ethernet device; storing one or more time intervals between starting times of successive pairs of the plurality of messages; determining if a pattern is found in the time intervals; when the pattern is found, setting a single twisted pair cable communications mode between the first Ethernet device and the second Ethernet device; and performing priority resolution between the first Ethernet device and the second Ethernet device.

SYSTEM AND METHOD FOR ACCELERATING NETWORK APPLICATIONS USING AN ENHANCED NETWORK INTERFACE AND MASSIVELY PARALLEL DISTRIBUTED PROCESSING

The amount of data being delivered across networks is constantly increasing. This system and method demonstrates an improved system and method for establishing secure network connections with increased scalability and reduced latency. This approach also includes arbitrary segmentation of incoming network traffic, and dynamic assignment of parallel processing resources to execute application code specific to the segmented packets. The method uses a modified network state model to optimize the delivery of information and compensate for overall network latencies by eliminating excessive messaging. Network data is application generated, and encoded into pixel values in a shared framebuffer using many processors in parallel. These pixel values are transported over existing high speed video links to the Advanced Network Interface Card, where the network data is extracted and placed directly on to high speed network links. 1at least one network interface comprising at least one first processor to:receive a stream plurality of packets from a network;for each packet in the plurality of packets, analyze packet contents to determine a specific data type to which the respective packet corresponds;filter the plurality of packets into a plurality of groups, each group based on the specific data type;insert each of the plurality of packets of a first group into a corresponding first buffer in memory of at least one graphics processing unit using direct memory access;assign each of the packets of the first group an index representing an offset indicating a location in the memory of the at least one graphics processing unit;. A system, comprising:transmit an interrupt to the at least one graphics processing unit corresponding to the preconfigured buffer flow capacity regarding the first buffer in the least one graphics processing unit; andthe at least one graphics processing unit connected to the at least one network interface over a bus and comprising at least one second processor ...

NETWORK COMMUNICATION APPARATUS AND METHOD OF THE SAME

A network communication method used in a network communication apparatus is provided that includes the steps outlined below. An external network communication apparatus is electrically coupled through a communication path. A communication capability packet is transmitted to the external network communication apparatus. Whether an acknowledgement packet from the external network communication apparatus is received through the communication path is determined. When the acknowledgement packet is not received, a single direction communication is performed within any single time period by using a time division communication mechanism such that an auto negotiation process is performed by exchanging the communication capability packet and the acknowledgement packet of both of the network communication apparatus and the external network communication apparatus. 1. A network communication method capable for use in a network communication apparatus , comprising:electrically coupling to an external network communication apparatus through a communication path;transmitting a communication capability packet to the external network communication apparatus;determining whether an acknowledgement packet from the external network communication apparatus is received through the communication path; andwhen the acknowledgement packet is not received, performing a single way communication with the external network communication apparatus in any single time period by a time division communication mechanism for performing an auto negotiation process that exchanges the communication capability packet and the acknowledgement packet between the network communication apparatus and the external network communication apparatus.2. The network communication method of claim 1 , wherein the auto negotiation process comprises:transmitting the communication capability packet related to a first one of the network communication apparatus and the external network communication by the first one to a second ...

SYSTEM AND METHOD FOR SUPPORTING EFFICIENT VIRTUAL OUTPUT QUEUE (VOQ) RESOURCE UTILIZATION IN A NETWORKING DEVICE

A system and method can support packet switching in a network environment. A networking device, such as a network switch, which includes a crossbar fabric, can be associated with a plurality of input ports and a plurality of output ports. Furthermore, the networking device can detect a link state change at an output port that is associated with the networking device. Then, the networking device can notify one or more input ports, via the output port, of the link state change at the output port. 1. A method for supporting packet switching in a network environment , comprising:providing a networking device, which is associated with a plurality of input ports and a plurality of output ports;detecting a link state change at an output port that is associated with the networking device; andnotifying one or more input ports, via the output port, of the link state change at the output port.2. The method according to claim 1 , further comprising:allowing the networking device to be a network switch, which includes a crossbar fabric.3. The method according to claim 1 , further comprising:using a plurality of virtual output queues to store one or more packets that are received at the plurality of input ports, wherein each said input port is associated with one or more said virtual output queues.4. The method according to claim 3 , further comprising:using an output scheduler to schedule an input port to forward one or more packets stored in a virtual output queue to an output port.5. The method according to claim 4 , further comprising:draining said one or more packets stored in the virtual output queue, andreturning one or more credits to one or more source VLs associated with the input port.6. The method according to claim 4 , further comprising:sending, via the output port, a state change notification to an output scheduler, andbroadcasting, via the output scheduler, the state change notification to a plurality of input ports.7. The method according to claim 6 , further ...

Method and System for Associating a Device with a Gateway

The present invention concerns a method and system for associating a device with a gateway, said gateway being designed to communicate firstly with the device via a communication network and secondly with another device referred to as the server. The method comprises a step of sending, by the server and to the gateway, of an authorisation so that a device may be associated with this gateway. 1. A method for associating at least one device with a gateway designed to communicate firstly with the at least one device via a communication network and secondly with another device known as a server , wherein an authorisation for association is stored in the gateway and the method comprises the steps of:associating the at least one device with the gateway by an installer or a user,storing by the gateway of a list of devices that are associated with the gateway,sending the list of associated equipment by the gateway to the server,receiving by the gateway of a prohibition that-of a device to be associated with the gateway of the server.2. The method according to claim 1 , wherein the method comprises a step of sending claim 1 , by the server and to the gateway claim 1 , of an authorisation for a device to be associated with this gateway.3. The method according to claim 1 , in which the association of a device with the gateway is dependent on a prior mechanical action by a user on the gateway.4. The method according to claim 1 , in which the authorisation sent to the gateway also designates one of the devices that is associated therewith and the method continues with the deletion of this device from the list of devices stored by the gateway and a new device is then authorised to be associated with the gateway.5. The method according to claim 4 , wherein each device associated with the gateway corresponds to a type of device and an identifier is allocated to each device associated with the gateway claim 4 , the identifier being determined according to a number of devices of a ...

ETHERNET LINK EXTENSION METHOD AND DEVICE

Ethernet link extension methods and devices provide, in one illustrative embodiment, an Ethernet link extender with physical medium attachment (PMA) circuits each having a transmitter and receiver that communicate with a respective node in a sequence of communication phases. The sequence includes at least an auto-negotiation phase and a subsequent training phase, the phases occurring simultaneously for both PMA circuits. In the auto-negotiation phase, the PMA circuits operate in a pass-through mode, rendering the extender transparent to the two nodes. In the training phase, the PMA circuits operate independently, sending training frames to their respective nodes based in part on received back-channel information and locally-determined training status information. The training phases may be prolonged if needed to provide a simultaneous transition to a frame-forwarding phase of the sequence. 120.-. (canceled)21. An Ethernet link extension method that comprises , coupling a transmitter of a second PMA (physical medium attachment) circuit to a receiver of a first PMA circuit to retransmit channel signal waveforms received from a first node;', 'coupling a transmitter of the first PMA circuit to a receiver of the second PMA circuit to retransmit channel signal waveforms received from a second node; and', 'monitoring spectra of the channel signal waveforms received from at least one of the first and second nodes to detect an end of the auto-negotiation phase; and, 'in a first communications phase for auto-negotiation demodulating communications received from the first node by the receiver of the first PMA circuit to obtain a first digital channel symbol or bit stream;', 'conveying the first digital channel symbol or bit stream to the transmitter of the second PMA circuit for transmission to the second node;', 'demodulating communications received from the second node by the receiver of the second PMA circuit to obtain a second digital channel symbol or bit stream; and', ' ...

System, Method and Apparatus for Multi-Lane Auto-Negotiation Over Reduced Lane Media

A system, method and apparatus for multi-lane auto-negotiation over reduced-lane media. Auto-negotiation over an M-lane communication interface can be coordinated with the auto-negotiation over an N-lane communication interface, wherein M>N. A recursive-type auto-negotiation process would begin with the M-lane communication interface and be prevented from completing until the auto-negotiation process over the N-lane communication interface completes. 1. A method , comprising:receiving, by a physical layer device as part of a first auto-negotiation process, first auto-negotiation capability information from an M-lane communication device over an M-lane communication interface;transmitting, by the physical layer device as part of a second auto-negotiation process, second auto-negotiation capability information based on the first auto-negotiation capability information over an N-lane communication interface to an N-lane communication device, wherein M>N;completing, by the physical layer device, the second auto-negotiation process with the N-lane communication device; andafter the completion of the second auto-negotiation process, transmitting, by the physical layer device, third auto-negotiation capability information to the M-lane communication device over the M-lane communication interface.2. The method of claim 1 , wherein N is equal to one.3. The method of claim 1 , wherein N is not equal to one.4. The method of claim 1 , further comprising squelching transmission by the physical layer device to the M-lane communication device until the completion of the second auto-negotiation process.5. The method of claim 1 , further comprising restarting the first auto-negotiation process after the completion of the second auto-negotiation process.6. The method of claim 1 , further comprising transmitting a null page or advertising zero capabilities.7. A device claim 1 , comprising:an M-lane communication interface that is configured for communication with an M-lane ...

APPARATUS AND METHOD FOR SCALABLE AND FLEXIBLE ACCESS CONTROL LIST LOOKUP IN A NETWORK SWITCH

A network switch to support scalable and flexible access control list (ACL) lookup comprises a packet processing pipeline including a plurality of packet processing units each configured to generate a master key for an ACL lookup request to a memory pool and process a received packet based on ACL search results. The network switch further includes said memory pool including a plurality of memory groups each configured to maintain a plurality of ACL tables to be searched in one or more SRAM memory tiles of the memory group, accept and format the master key generated by the packet processing unit into a compact key based on a bitmap per user configuration, hash the formatted compact key and search the ACL tables stored in the one or more SRAM memory tiles using the formatted compact key, process and provide the ACL search results to the requesting packet processing unit. 1. A network switch to support scalable and flexible access control list (ACL) lookup , comprising: generate and provide a master key for an ACL lookup request to a memory pool;', 'process the received packet based on ACL search results of the ACL lookup request returned from the memory pool;, 'a packet processing pipeline including a plurality of packet processing units configured to process a received packet through multiple packet processing stages, wherein each of the packet processing units is configured to'} maintain a plurality of ACL tables to be searched in one or more SRAM memory tiles of the memory group;', 'accept and format the master key generated by the packet processing unit into a compact key based on a bitmap per user configuration, wherein the compact key is shorted in size than the master key;', 'hash the formatted compact key and search the ACL tables stored in the one or more SRAM memory tiles of the memory group using the formatted compact key;', 'process and provide the ACL search results to the requesting packet processing unit., 'said memory pool including a plurality of ...

METHOD AND APPARATUS TO ENABLE DISCOVERY OF IDENTICAL OR SIMILAR DEVICES ASSEMBLED IN A SERIAL CHAIN AND ASSIGN UNIQUE ADDRESSES TO EACH

Methods and apparatus for enabling discovery of and assigning unique addresses for identical or similar devices assembled in a serial chain of devices in a high-speed communications link. The method and apparatus enable an endpoint device in a communication link including a plurality of serially-connected signal buffering devices to discover each signal buffering devices, assign a unique address, and configure each signal buffering device from a central non-volatile memory (NVM) using an in-band configuration protocol for the communication link. 130.-. (canceled)31. A computer-implemented method , comprising ,discovering each of a plurality of serially-connected signal buffering devices in a communication link between first and second endpoint devices including the plurality of serially-connected signal buffering devices, the first and second endpoint devices and the plurality of serially-connected signal buffering devices forming a serial chain of devices; andautomatically configuring each of the plurality of serially-connected signal buffering devices,wherein at least two of the plurality of serially-connected signal buffering devices are the same type of device, and wherein each of the plurality of serially-connected signal buffering devices is configured with a unique device address.32. The computer-implemented method of claim 31 , wherein each of the plurality of serially-connected signal buffering devices is configured using a central non-volatile memory (NVM) device comprising one of the first and second endpoint devices;33. The computer-implemented method of claim 31 , wherein the at least two of the plurality of serially-connected signal buffering devices that are the same type of device comprise re-driver devices.34. The computer-implemented method of claim 31 , wherein the at least two of the plurality of serially-connected signal buffering devices that are the same type of device comprise re-timer devices.35. The computer-implemented method of claim 31 , ...

AUTOMATIC MULTI-CHASSIS LINK AGGREGATION CONFIGURATION

A computer network includes a server computer having communication ports that are wired to switch ports of two separate network switches. The network switches receive link aggregation control packets from the server computer, and automatically aggregate corresponding switch ports into a single logical port channel based on contents of the control packets. 1. A computer network comprising:a server computer having a first communication port and a second communication port;a first network switch having a first switch port that is adapted to receive a first network traffic from the first communication port of the server computer by way of a first wired connection between the first switch port of the first network switch and the first communication port of the server computer; anda second network switch having a first switch port that is adapted to receive a second network traffic from the second communication port of the server computer by way of a second wired connection between the first switch port of the second network switch and the second communication port of the server computer,wherein the first network switch is adapted to extract link aggregation data from the first network traffic received at the first switch port of the first network switch, and to add the first switch port of the first network switch as a member of a first port channel aggregation that includes the first switch port of the second network switch and that has a same aggregation information as indicated in the link aggregation data extracted from the first network traffic.2. The computer network of claim 1 , wherein the first communication port of the server computer is a Network Interface Card (NIC) port.3. The computer network of claim 1 , wherein the first wired connection is a backplane connection.4. The computer network of claim 1 , wherein the first network switch and the second network switch are configured as peer network devices claim 1 , with the first network switch being a primary ...

DETERMINING VIRTUAL ADAPTER ACCESS CONTROLS IN A COMPUTING ENVIRONMENT

A control component of a computing environment initiates sending of request(s) over a network of the computing environment by an activated virtual adapter. The activated virtual adapter is hosted on a physical adapter of a host system coupled to the network, and is for use by a guest, hosted by the host system, in performing data input and output. The request(s) retrieve access control information from the network indicative of access control(s) enforced in controlling access by the activated virtual adapter to network component(s). The initiating provides indication(s) to the physical adapter, absent involvement of the guest, that the request(s) be sent by the virtual adapter. Based on the initiating, the control component obtains the access control information from the physical adapter, and determines, based on that information, the access control(s) being enforced by the network in controlling access by the activated virtual adapter to the network component(s). 1. A computer-implemented method comprising:initiating, by a control component of a computing environment, sending of one or more requests over a network of the computing environment by an activated virtual adapter, the activated virtual adapter being hosted on a physical adapter of a host system coupled to the network, the activated virtual adapter for use by a guest, hosted by the host system, in performing data input and output, wherein the one or more requests retrieve access control information from the network, the access control information indicative of one or more access controls enforced by the network in controlling access by the activated virtual adapter to one or more network components of the network, and wherein the initiating comprises the control component providing one or more indications to the physical adapter, absent involvement of the guest, that the one or more requests be sent by the virtual adapter;based on the initiating, obtaining, by the control component, the access control ...

DETERMINING VIRTUAL ADAPTER ACCESS CONTROLS IN A COMPUTING ENVIRONMENT

A control component of a computing environment initiates sending of request(s) over a network of the computing environment by an activated virtual adapter. The activated virtual adapter is hosted on a physical adapter of a host system coupled to the network, and is for use by a guest, hosted by the host system, in performing data input and output. The request(s) retrieve access control information from the network indicative of access control(s) enforced in controlling access by the activated virtual adapter to network component(s). The initiating provides indication(s) to the physical adapter, absent involvement of the guest, that the request(s) be sent by the virtual adapter. Based on the initiating, the control component obtains the access control information from the physical adapter, and determines, based on that information, the access control(s) being enforced by the network in controlling access by the activated virtual adapter to the network component(s). 1. A computer program product , comprising: initiating, by a control component of a computing environment, sending of one or more requests over a network of the computing environment by an activated virtual adapter, the activated virtual adapter being hosted on a physical adapter of a host system coupled to the network, the activated virtual adapter for use by a guest, hosted by the host system, in performing data input and output, wherein the one or more requests retrieve access control information from the network, the access control information indicative of one or more access controls enforced by the network in controlling access by the activated virtual adapter to one or more network components of the network, and wherein the initiating comprises the control component providing one or more indications to the physical adapter, absent involvement of the guest, that the one or more requests be sent by the virtual adapter;', 'based on the initiating, obtaining, by the control component, the access control ...

DETERMINING VIRTUAL ADAPTER ACCESS CONTROLS IN A COMPUTING ENVIRONMENT

A control component of a computing environment initiates sending of request(s) over a network of the computing environment by an activated virtual adapter. The activated virtual adapter is hosted on a physical adapter of a host system coupled to the network, and is for use by a guest, hosted by the host system, in performing data input and output. The request(s) retrieve access control information from the network indicative of access control(s) enforced in controlling access by the activated virtual adapter to network component(s). The initiating provides indication(s) to the physical adapter, absent involvement of the guest, that the request(s) be sent by the virtual adapter. Based on the initiating, the control component obtains the access control information from the physical adapter, and determines, based on that information, the access control(s) being enforced by the network in controlling access by the activated virtual adapter to the network component(s). 1. A method comprising:initiating, by a control component of a computing environment, sending of one or more requests over a network of the computing environment by an activated virtual adapter, the activated virtual adapter being hosted on a physical adapter of a host system coupled to the network, the activated virtual adapter for use by a guest, hosted by the host system, in performing data input and output, wherein the one or more requests retrieve access control information from the network, the access control information indicative of one or more access controls enforced by the network in controlling access by the activated virtual adapter to one or more network components of the network, and wherein the initiating comprises the control component providing one or more indications to the physical adapter, absent involvement of the guest, that the one or more requests be sent by the virtual adapter;based on the initiating, obtaining, by the control component, the access control information from the ...

TECHNOLOGIES FOR AUTONEGOTIATING 10G AND 1G SERIAL COMMUNICATIONS OVER COPPER CABLE

Technologies for autonegotiation of communications operational modes over copper cable include a network port logic having a communication link coupled to a remote link partner. The network port logic may start an autonegotiation protocol upon reset, when the link is broken, or upon manual renegotiation. The network port logic transmits an autonegotiation page to the remote link partner that indicates single-lane communications ability over copper cable. The network port logic receives an autonegotiation page from the link partner indicating single-lane communications ability over copper cable. If the network port logic and link partner have a common single-lane communication ability, the link may be activated. The autonegotiation pages may be base pages or next pages. The single-lane communication ability may be indicated by one or more bits of the autonegotiation pages. The link may be established at 1 gigabit or 10 gigabits per second. Other embodiments are described and claimed. 120-. (canceled)21. An apparatus comprising: media access controller (MAC) circuitry;', 'physical coding sublayer (PCS) circuitry;', 'a port;', generate first auto-negotiation data to be sent on the port, wherein the first auto-negotiation data comprises a base page, the base page comprises a technology ability field to indicate that a first operational mode and a second operational mode are supported by the apparatus, the first operational mode comprises a single-lane communication over copper cable mode, and the second operational mode comprises a multi-lane communication over copper cable mode;', 'identify second auto-negotiation data to be received on the port from a device, wherein the second auto-negotiation data indicates that the device also supports the first operational mode and the second operational mode; and, 'auto-negotiation circuitry to], 'a high speed Ethernet subsystem comprisingwherein the port comprises circuitry to activate a communication link in one of the first or ...

Port auto-negotiation method and device

A port auto-negotiation method and a device are used for implementing port auto-negotiation between high-speed Ethernet devices. The method performed by a first device includes: configuring a first port of the first device as four subports, where each of the four subports includes a differential transceiver channel; determining from the four subports, at least one subport whose differential transceiver channel operates normally, and selecting some or all of the at least one subport as a normal subport; sending capability information of the first port to a second device by using the normal subport, and receiving, by using the normal subport, capability information of a second port of the second device; and determining operating statuses of the four subports based on the capability information of the first port and of the second port.

System and Method for Deterministic I/O with Ethernet Based Industrial Networks

A networking system is discussed. The system may be used for industrial networks, where deterministic behavior is often valued. Bounded message travel times may be achieved for a first set of network traffic. Additional traffic may be routed over the networking system without interfering with the message travel times associated with the first set of network traffic. Systems and methods for assigning priority to various sets of network traffic are discussed. 1a first, a second, and a third Ethernet port; and for Ethernet frames received on the first port and destined for the second port or third port, ensure that any priority tags of the frames do not indicate a priority that exceeds a predetermined threshold upon transmission from the second port or third port; and', 'for Ethernet frames received on the second port or third port and destined for the second port or third port, preserve the priority level indicated in any priority tags of the received frames upon transmission from the second port or third port,, 'a network interface connected to each of said Ethernet ports, the network interface configured tofor Ethernet frames received on the first port and destined for the second port or third port, ensure that any priority tags of the frames do not indicate a priority that exceeds the predetermined threshold upon transmission from the second port or third port by setting the priority level of the frames to a default value.. A device comprising: The present application is a continuation patent application of U.S. patent application Ser. No. 13/357,762, filed Jan. 25, 2012, which is hereby incorporated by reference.Many environments are sensitive to the amount of time it takes for messages to travel between two networked machines. For example, in many industrial applications it is essential to know the maximum time it will take for a message to travel from one device to another. Most widespread communications protocols, such as TCP/IP, cannot provide the consistent, ...

CONTROLLING NETWORKING DEVICE TEMPERATURES BY REDUCING DATA TRANSFER RATES FROM ASSOCIATED NODES

A method includes a compute node transmitting data to a port of a first switch at a first data transfer rate, monitoring the temperature of the port, and a management node providing an instruction to the compute node in response to the port temperature exceeding a temperature limit, wherein the instruction instructs the compute node to reduce the first data transfer rate to the port. The method further includes the compute node reducing the data transfer rate to the port in response to receiving the instruction. The method is applicable to multiple compute nodes transmitting data to multiple ports of a first switch. The data transfer rate may be reduced by throttling the compute node, renegotiating a link speed between the compute node and the port, or redirecting data to another switch. The methods facilitate thermal control of a switch without its own thermal throttling capability. 1. A method , comprising:a compute node transmitting data to a port of a first switch at a first data transfer rate;monitoring the temperature of the port;a management node providing an instruction to the compute node in response to the port temperature exceeding a temperature limit, wherein the instruction instructs the compute node to reduce the first data transfer rate to the port; andthe compute node reducing the data transfer rate to the port in response to receiving the instruction.2. The method of claim 1 , wherein the compute node reduces the data transfer rate to the port by throttling operation of the compute node or redirecting the data transmission away from the first switch to a second switch.3. The method of claim 1 , further comprising:determining, prior to reducing the data transfer rate to the port, that fans within the first switch are operating at a maximum fan speed setpoint.4. The method of claim 1 , wherein the port temperature is the temperature of a transceiver case for the port.5. The method of claim 1 , wherein the compute node reduces the data transfer rate to ...

NETWORK ELEMENT FEDERATION CONTROLLER AND FORWARDING BOX

A controller network device, in a network control layer of a service provider network, receives command input for providing services over a service provider network and provides, to a forwarding network device, a first control communication. The first control communication includes an initial output to implement the command input. The controller network device provides, to peer controller network devices, a verification request to verify the initial output of the first control communication; receives, from the peer controller network devices, responses to the verification request that each include a calculated output based on the command input; and applies a verification schema to determine a majority output from the responses. The controller network device compares the initial output to the majority output and sends a second control communication, with a verified output indication, to implement the command input when the initial output matches the majority output. 1. A method , comprising:receiving, by a controller network device, command input for providing services over a service provider network;providing, by the controller network device and to a forwarding network device, a first control communication, wherein the first control communication includes an initial output to implement the command input;providing, to peer controller network devices, a verification request to verify the initial output of the first control communication;receiving, from the peer controller network devices, responses to the verification request, wherein each of the responses includes a calculated output based on the command input;applying, by the controller network device, a verification schema to determine a majority output from the responses;comparing, by the controller network device, the initial output to the majority output to determine if the first control communication is verified; andsending, by the controller network device, a second control communication to implement the ...

MAP SHARING FOR A SWITCH DEVICE

A method of implementing map sharing for a network switch appliance, the network switch appliance having a plurality of network ports and a plurality of instrument ports, the method includes: receiving a first input for creating a map for the network switch appliance, wherein the map comprises one or more packet processing rules, and wherein the act of receiving the first input is performed by a processing unit; receiving a second input for prescribing a map sharing privilege for the map; and storing the map and the map sharing privilege in association with the map in a non-transitory medium. 1. A method of implementing map sharing for a network switch appliance , the network switch appliance having a plurality of network ports and a plurality of instrument ports , the method comprising:receiving a first input for creating a map for the network switch appliance, wherein the map comprises one or more packet processing rules, and wherein the act of receiving the first input is performed by a processing unit;receiving a second input for prescribing a map sharing privilege for the map; andstoring the map and the map sharing privilege in association with the map in a non-transitory medium.2. The method of claim 1 , wherein the first input comprises one or more parameters for defining the one or more packet processing rules.3. The method of claim 2 , wherein the first input also comprises a network port identifier of one of the network ports claim 2 , and/or an instrument port identifier of one of the instrument ports.4. The method of claim 1 , wherein one of the one or more packet processing rules comprises data for matching against header information of a packet to be received at the network switch appliance.5. The method of claim 1 , wherein one of the one or more packet processing rules comprises data for matching against non-header information of a packet to be received at the network switch appliance.6. The method of claim 1 , wherein the first input for creating ...

DATA TRANSMISSION METHOD AND APPARATUS FOR TERMINAL

Embodiments of the present invention disclose a data transmission method and apparatus for a terminal. The terminal exchanges data of an application with a server through a first port by using a first access node; when one port in a second port set is in an enabled state, the terminal accesses one access node in a candidate access node set through the enabled port in the second port set, and exchanges, based on the Multipath TCP, the data of the application with the server by using an access node corresponding to the enabled port. 1. A data transmission method for a terminal , wherein the terminal comprises one or more physical network interface cards , one physical network interface card corresponds to multiple virtual network interface cards , the multiple virtual network interface cards are in a one-to-one correspondence with multiple ports , the multiple ports comprise a first port and a second port set , the second port set comprises one or more ports , the terminal is located within a service coverage area of a first access node and that of an access node in a candidate access node set , the first access node and the access node in the candidate access node set belong to a same type of wireless network , and the candidate access node set comprises at least one access node , the method comprising:exchanging, by the terminal, data of an application with a server through the first port by using the first access node;accessing one access node in the candidate access node set through an enabled port in the second port set when one port in the second port set is in an enabled state, or accessing at least one access node in the candidate access node set one-to-one through at least one port of multiple enabled ports in the second port set when multiple ports in the second port set are in an enabled state; andexchanging, based on a Multipath Transmission Control Protocol (TCP) , the data of the application with the server through an enabled port by using an access node ...

Ethernet Switch and Remote Transmission Method Thereof

The present application discloses a long-distance transmission method for an Ethernet switch including a network switching module, an MCU module and a dial code module. The MCU module is connected to the network switching module and the dial code module. The dial code module is configured for providing two configuration inputs for a normal mode and a long-distance mode for user equipment. The MCU module is configured for monitoring a configuration input state of the dial code module in real time. When detecting that the dial code module is in the configuration input for the normal mode, the MCU module configures a network port of the network switching module to be in a self-negotiation mode. When detecting that the dial code module is in the configuration input state for the long-distance mode, the MCU module configures the network port of the network switching module to be in a 10 Mbps full-duplex mode and controls an amplitude of an output voltage of a network signal of the network switching module to increase. The network switching module is configured for negotiating a network link bandwidth of 10 Mbps and a full duplex mode between the network switching module and the user equipment for long-distance data transmission according to a configuration made by the MCU module when the dial code module is in the long-distance mode. The embodiments of the present application are applied to long-distance data transmission.

Communication apparatus and communication method

A communication apparatus includes a physical layer circuit that functions as a physical layer for communication with a communication destination and can perform an automatic negotiation with the communication destination for determining communication setting information representing physical setting of communication with the communication destination, a nonvolatile storage unit, and a control unit that controls the physical layer circuit. In one operating mode, the control unit controls the physical layer circuit such that an automatic negotiation with the communication destination is performed and communication setting information determined by the automatic negotiation in the storage unit is written. In another operating mode, the control unit writes the communication setting information stored in the storage unit in the physical layer circuit.

Multi-Endpoint Adapter/Multi-Processor Packet Routing System

A multi-endpoint adapter includes endpoints configured to couple to respective processing subsystems, multi-endpoint adapter ports configured to couple to an external switch via respective external switch ports, and an internal switch coupled to the endpoints and multi-endpoint adapter ports. The internal switch receives a data packet from a first application provided by a first processing subsystem through a first endpoint, and matches the data packet to a data flow associated with QoS parameter(s). The internal switch then identifies a data flow action that is associated with the data flow and that provides for the transmission of the data packet via a first multiple endpoint adapter port that is configured in a manner that satisfies the at least one QoS parameter, and performs the data flow action to transmit the data packet through the first multi-endpoint adapter port and a first external switch port to the external switch. 1. A multi-endpoint adapter device , comprising:a plurality of endpoint devices that are each configured to coupled to a respective processing subsystem;a plurality of multi-endpoint adapter device ports that are each configured to couple to respective external switch device ports on an external switch device; and receive, from a first application that is provided by a first processing subsystem included in the plurality of processing subsystems and through a first endpoint device included in the plurality of endpoint devices, a data packet;', 'match the data packet to a data flow that is identified in an internal switch device database and that is associated with at least one Quality of Service (QoS) parameter;', 'identify a data flow action that is associated with the data flow in the internal switch device database and that provides for the transmission of the data packet via a first multi-endpoint adapter device port that is included in the plurality of multi-endpoint adapter device ports and that is configured in a manner that satisfies ...

Data processing methods and an access node

一种数据处理的方法及接入节点。数据处理的方法包括：接收下行数据；判断下行数据是否为错误数据；若是，则用与下行数据具有相同带宽的帧间隙替换下行数据，发送替换后的数据。另一种数据的处理方法包括：接收上行数据；判断上行数据是否为自协商数据；若是，则用与上行数据具有相同带宽的帧间隙替换上行数据，发送替换后的数据、及响应上行数据。本发明实施例还提供接入节点。

System and method for enhancing network quality of service

본원발명은 데이터 네트워크 영역으로부터 데이터를 수용하는 복수의 진입 포트와, 진입 포트 중 적어도 하나 상의 데이터 네트워크로부터 데이터를 수용하는 수용율을 사용자가 제한할 수 있게 하는 사용자 인터페이스를 갖는 데이터 전송 네트워크 하부구조 디바이스에 관한 것이며, 여기서, 진입 포트 중 적어도 하나와 상기 진입 포트 중 적어도 하나에 연결된 디바이스 사이의 데이터 전송율은 제한되어, 이를 통해 데이터가 진입 포트 내로 수용되는 제한에 의해 대역폭 제한이 구현된다. The present invention provides a data transfer network infrastructure device having a plurality of entry ports for receiving data from a data network area and a user interface that allows a user to limit the rate of acceptance of data from a data network on at least one of the entry ports. Wherein the data rate between at least one of the entry ports and a device connected to at least one of the entry ports is limited, whereby bandwidth limitations are implemented by limitations in which data is received into the entry port.

INTEGRATED MULTIPORT SWITCHING WITH DIVIDED MEDIA ACCESS CONTROL CIRCUIT

Integrated multiport switch having shared data receive FIFO structure

An integrated multiport switch (IMS) having a receive FIFO structure with a single port RAM, for storing network communication data received from each port of the switch. The RAM is connected to a FIFO control unit, which is coupled to a MAC for each port by a MAC bus, by a FIFO memory input bus. Writing of data received from each port via the MAC bus to the RAM is controlled on a time shared basis. The FIFO control unit includes a receive RAM interface that is connected to the MAC bus for receiving communication data from the ports and to the FIFO memory input bus for transferring communication data to the RAM for temporary storage. As the FIFO memory input bus has a larger bit transfer capacity than the MAC bus, the receive RAM interface can accumulate incoming data during clock cycles in which data is being read from the single port RAM. When the accumulated data for a given port is to be written to the RAM in a subsequent write cycle, it is then combined with additional incoming data for the same port received at that time for transfer to the RAM.

System and method for supporting efficient virtual output queue (VOQ) resource utilization in a networking device

A system and method can support packet switching in a network environment. A networking device, such as a network switch, which includes a crossbar fabric, can be associated with a plurality of input ports and a plurality of output ports. Furthermore, the networking device can detect a link state change at an output port that is associated with the networking device. Then, the networking device can notify one or more input ports, via the output port, of the link state change at the output port.

Network transceiver for steering network data to selected paths based on determined link speeds

A method of operating repeaters (12, 14) or other hub devices in a local area network (5), such as one conforming to Ethernet protocol, in which there are a plurality of repeater interfaces (22, 24) of respectively different data rates for communicating with a link partner (50) on a network medium (52) comprises determining the data rate of operation of the link partner (50), and based on that data rate, automatically steering data between the network medium (52) and a selected one of the repeaters (12, 14). In a preferred embodiment, a network transceiver (16) comprises one or more physical layer devices (PHY), and a plurality of shared data busses (48) corresponding, respectively, to the speeds of operation of the repeaters, for interconnecting the repeaters (12, 14) and one or more of the physical layer devices (16; 70). A multiplexer (60) interconnects each of the one or more physical layer devices to a selected one of the plurality of busses (48), and an auto-negotiation unit (54) controls the multiplexer (60) to interconnect the physical layer devices to corresponding busses selected depending on the operating speed of the link partner.

Method and apparatus to enable discovery of identical or similar devices assembled in a serial chain and assign unique addresses to each

Method, device and system for processing expansion port

本发明提供了一种扩展端口的处理方法、装置及系统，其中，该方法采用扩展设备PE向控制设备CB发送扩展端口创建消息，其中，该扩展端口创建消息携带该PE的扩展端口的端口状态，该扩展端口创建消息用于通知该CB创建该扩展端口的虚端口，及用于该CB将该端口状态反馈至该虚端口，解决了控制设备CB无法快速发现和监控扩展设备PE的扩展端口的状态信息的问题，实现了CB可以快速发现和监控PE的所有扩展端口及状态信息，提高了处理效率。

Data transmission method and apparatus for terminal

Device initializing system with programmable array logic configured to cause non-volatile memory to output address and data information to the device in a prescribed sequence

A low-cost implementation of a switching system using a multiport network switch avoids the necessity of a microprocessor by using programmable array logic (PAL) configured to drive a non-volatile memory. The PAL includes an address generator state machine, a PCI control signal state machine, and an interrupt state machine. The non-volatile memory sequentially outputs address and data information, under the control of the address generator state machine, onto a bus connected to the network switch in order to initialize the network switch with initialization and configuration data. The PCI control signal state machine provides control signals causing the output address and data information to mimic a PCI burst transfer. Once the network switch has been configured, the non-volatile memory outputs a start command causing the network switch to begin running in a free-running mode. A memory overflow interrupt in the network switch is also enabled, causing the PAL to reset the network switch if overloaded.

Method and apparatus for resolving deadlock of auto-negotiation sequence between switches

一种传输中继器，其具有使交换机之间的自协商序列从死锁状态恢复到正常状态的功能。交换机通过第一和第二传输中继器交换自协商配置码用于状态转变。第一传输中继器在从相对的交换机发送的数据当中监测自协商配置码，并且当检测到在指定长时间内已经有超过预定数目的自协商配置码被发送，判定交换机之间的自协商序列处于死锁状态，并将其报告给第二传输中继器，然后第二传输中继器使从第二传输中继器的发送端到交换机的光信号断开超过交换机设备之间的信号传播时间两倍的时间，从而解决交换机之间的死锁。

Method and system for associating physical link partners using a layer two mechanism

A network device and an adjacent network device may autonegotiate for utilization of an OSI layer 2 protocol for exchanging control information. The network device may generate and/or communicate to the adjacent network device, Ethernet frames comprising the control information based on the OSI layer 2 protocol. OSI layer 2 capabilities status and/or MAC address of the adjacent network device may be received and/or stored during auto-negotiation. An Ethertype and/or LLDP Ethertype may be set within the Ethernet frames to indicate utilization of the OSI layer 2 protocol. Payload within the Ethernet frames may be populated with control information that is encapsulated in a non-standardized or standardized discovery protocol frame and/or a LLDPDU. The control information may comprise device capabilities and/or communication parameters. Subsequent Ethernet frames comprising other content may be communicated to the adjacent network device based on the control information.

Method and system for speed negotiation for twisted pair links using intelligent E-FIFO in fibre channel systems

Certain aspects of a method and system for speed negotiation for twisted pair links using intelligent elastic first-in-first-out (E-FIFO) in fiber channel systems are disclosed. Aspects of a method may include determination of a priority level based on amount of data in at least one elastic FIFO (E-FIFO) buffer communicatively coupled to at least one of the fiber channel host devices. The E-FIFO buffer may be modified either by insertion or deletion of IDLE words or words from an order set based on the determined priority level. The data may be synchronously communicated between fiber channel host devices communicatively coupled via the twisted pair link based on the modified elastic buffer.

Network switch that is optimized for a telephony-capable endpoint

A method is disclosed that enables the avoidance of a processor overload of a telecommunications endpoint device that is susceptible to traffic floods. An enhanced network switch sets the speed on one of its data ports as a specific function of the speeds of the devices that are donnected to one or more of its other data ports. This behavior is different from that of network switches in the prior art, in which the data rate of a port in the prior art is auto-negotiated to the highest speed that can be supported by the network elements at either end of the port's connection, regardless of the other devices present. By considering the specific devices that are connected, the enhanced network switch is able to limit the amount of traffic that is directed by an upstream device, such as a router, towards a device with limited processor capability, such as a packet-based phone.

Hundred/giga self-adaptive Ethernet-over-Ethernet physical layer implementation circuit

本发明公开了一种百/千兆自适应光以太网物理层实现电路，包括光模块，还包括网速自动识别模块和接收过程物理层模块，网速自动识别模块用于确定当前光通信的速率信息；接收过程物理层模块包括数据流多次采样模块和数据流复原模块，数据流多次采样模块用于生成八个频率相同且采样沿的相位依次相差45度的采样时钟进行采样获得采样数据集合，数据流复原模块用于根据采样数据集合生成复原点数据集。本发明通过相位相差45度的八个采样时钟对接收光模块的接收端获得的串行接收数据进行采样，通过自适应识别串行接收数据的bit的持续时间段中部的采样沿，进而获得串行接收数据准确的bit值，提高了采样精度和数据传输质量。

System and method for reconfigurable network device

A network device includes a hardware component. The network device includes a first device receiver operably connected to the hardware component via a first hardware component connection and adapted to receive a device. The network device further includes a second device receiver operably connected to the hardware component via a second hardware component connection. The first device receiver of the network device is adapted to reversibly reallocate the first hardware component connection to the second device receiver.

Advanced ethernet auto negotiation

A port on a network device engages in auto-negotiation on a network link during a first operational state to select a transmission mode, either half duplex or full duplex. If half duplex operation is selected, the port commences half duplex operation in a second operational state. During the second operational state, the link is monitored for an error condition indicating that another network device attached to the link may not be operating in a half duplex manner. This error condition includes the occurrence of excessive collisions or late collisions. When the error condition is detected, the port commences full duplex operation in a third operational state, based on the presumption that device at the other end of the link may be configured for fixed full duplex operation. If proper operation ensues, the port remains configured for full duplex transmission. Because the presumption may be incorrect, the link is monitored during the third operational state for a second error condition indicating that transmissions by the network device may be interfering with transmissions by the other network device. Examples of the second error condition include excessive frame check sequence errors and an excessive number of abnormally truncated messages. If such a second error condition occurs, the port is disabled in a fourth operational state and the condition is reported to higher-level operating software. Repeated attempts at normal operation may follow, with further monitoring that may result in shutting down the port if normal operation cannot be achieved.

Method and apparatus for reclaiming a buffer

Method and device for realizing port consultation between fabric channel over Ethernet (FCoE) forwarders

本发明提供了一种用于实现FCoE交换机之间端口协商的方法和装置。本发明能够使FCoE交换机之间的端口协商省去FIP VLAN请求报文和FIP VLAN通告报文的交互过程，并省去在VLAN内的ELP协商、ESC协商、EVFP协商的过程，因而能够使FCoE交换机之间的端口协商得以简化。

A kind of hundred/gigabit adaptive optical ethernet physical layer realization circuit

本发明公开了一种百/千兆自适应光以太网物理层实现电路，包括光模块，还包括网速自动识别模块和接收过程物理层模块，网速自动识别模块用于确定当前光通信的速率信息；接收过程物理层模块包括数据流多次采样模块和数据流复原模块，数据流多次采样模块用于生成八个频率相同且采样沿的相位依次相差45度的采样时钟进行采样获得采样数据集合，数据流复原模块用于根据采样数据集合生成复原点数据集。本发明通过相位相差45度的八个采样时钟对接收光模块的接收端获得的串行接收数据进行采样，通过自适应识别串行接收数据的bit的持续时间段中部的采样沿，进而获得串行接收数据准确的bit值，提高了采样精度和数据传输质量。

Communication device and method

통신 장치는 통신처와의 통신의 물리층을 담당하며, 통신처와의 사이에서 통신의 물리적인 설정을 나타내는 통신 설정 정보를 결정하는 오토 네고시에이션을 행할 수 있는 물리층 회로와, 불휘발성의 기억부와, 물리층 회로를 제어하는 제어부를 구비한다. 제어부는 1개의 동작 모드에서는, 물리층 회로를 제어하여 통신처와의 사이에서 오토 네고시에이션을 행하게 하여, 오토 네고시에이션에 의해서 결정된 통신 설정 정보를 기억부에 기입하고, 다른 1개의 동작 모드에서는, 기억부에 기억되어 있는 통신 설정 정보를 물리층 회로에 기입한다.

Multiport data network switch having a random number generator shared by multiple media access controllers

A multiport data network switch with each port associated with a media access controller (MAC) that is allocated a time slot in a repetitive sequence of clock cycles. A random number generator is coupled in common to each MAC to output a random number signal thereto. In response to a collision indicating signal, received at a port during a data transmission, the MAC outputs a retransmission retry signal in accordance with the random number signal that represents a number of delay cycles in which said transmission is delayed. The random number signal generator outputs an increasing multibit signal that is periodically reset. The MAC associated with each port is coupled in common to the shared random number signal generator and gains access thereto at a different respective time slot.

Gigabit switch supporting cross-equipment port isolation

本发明公开了一种支持跨设备端口隔离的千兆交换机，其特征在于：包括PCB主板，PCB主板上设有电源芯片、单片机和交换芯片，单片机连接交换芯片；所述交换芯片连接4个SFP插座和两个网络变压器，SFP插座连接光模块，光模块连接光网口；所述网络变压器连接RJ45插座，RJ45插座连接电网口。本发明与现有技术相比的优点是：本发明创造通过应用一对同类型交换机，做到端口一一对应通信，非对应端口不能通信的要求，实现了通信的指向性和特定性，同时是低成本的解决方案。

Method and apparatus for transmitting data at different data transfer rates using multiple interconnected hubs

A network hub which allows the transmission of data at varying data transfer rates. Data is divided into different transfer protocols and converted by an exchange unit to transform the data of different groups into appropriate speed networks.

Long-reach ethernet for 1000BASE-T and 10GBASE-T

A physical-layer device (PHY) having corresponding methods comprises: a data rate module to select a data rate divisor N, where N is at least one of a positive integer, or a real number greater than, or equal to, 1; and a PHY core comprising a PHY transmit module to transmit first signals a data rate of M/N Gbps, and a PHY receive module to receive second signals at the data rate of M/N Gbps; wherein the first and second signals conform to at least one of 1000BASE-T, wherein M=1, and 10GBASE-T, wherein M=10.

A kind of longitudinal fusion architecture VCF construction method and equipment

本发明公开了一种纵向融合架构VCF的构建方法和设备，技术方案为：控制设备CB接收纵向扩展设备PE发送的VCF注册请求报文，所述VCF注册请求报文通过PE处于阻塞状态的第一VCF物理接口发送、且携带有所述PE的桥MAC地址；所述CB记录所述桥MAC地址，为所述PE分配虚拟槽号，将接收所述注册请求报文的第二VCF物理接口设置为阻塞状态，并向所述PE返回VCF注册响应报文；所述CB接收所述PE返回的VCF注册确认报文，所述VCF注册确认报文是所述PE根据所述VCF注册响应报文，记录所述虚拟槽号，将第一VCF物理接口设置为转发状态并加入上行链路组后返回的；所述CB将第二VCF物理接口设置为转发状态并加入下行链路组，建立所述虚拟槽号与所述桥MAC地址之间的绑定关系。

Data routing method and apparatus

A data routing method and apparatus, for implementing data routing in a communication system incorporating multiple types of networks employing different data bearer protocols. The method comprises: a routing apparatus receiving data through an input port, and determining a data bearer protocol attribute of the input port; the routing apparatus determining a data attribute according to the data bearer protocol attribute of the input port, the data attribute being IP or IQ if the data bearer protocol attribute of the input port is the CPRI protocol, and the data attribute being IP if the data bearing protocol attribute of the input port is the Ethernet protocol; the routing apparatus determining, according to the data attribute, a data bearer protocol attribute of an output port for data output; and the routing apparatus determining, according to the data bearer protocol attribute of the output port, the output port for data output, and outputting the data through the determined output port.

Logical router including a disaggregated network element

逻辑路由器包括分解式网络元件，其用作单个路由器且未联接到公共底板。逻辑路由器包括实施网络织网的脊元件和叶元件，其中前板端口由叶元件定义。控制平面元件对脊单元和叶进行编程，以使逻辑路由器作用。控制平面可以定义操作系统接口，其映射到叶元件的前板端口并由与遍历逻辑路由器的数据包相关联的标签引用。可以针对由控制平面元件实施的路由数据库实施冗余和检查点。逻辑路由器可以包括独立的织网，并且可以实施标签表，其用于根据出口端口和通过织网的路径来标记数据包。

System and method for multi-lane auto-negotiation over reduced lane media

一种通过减少通道的介质进行多通道自动协商的系统、方法和设备。通过M通道通信接口进行的自动协商可以与通过N通道通信接口进行的自动协商相协调，其中，M>N。递归式自动协商过程将从所述M通道通信接口开始，并且防止所述递归式自动协商过程完成，直至通过所述N通道通信接口的自动协商过程完成。

network interface module and network device for transmission and reception in the 1000base-t and 10gbase-t ethernet standards

ETHERNET DE LONGO ALCANCE PARA 1000BASE-T e 10GBASE-T. A presente invenção refere-se a um dispositivo de camada física (PHY) com métodos correspondentes que é caracterizado pelo fato de que possui: um módulo de taxa de dados para a seleção de um divisor de taxa de dados N, onde N representa pelo menos um número inteiro positivo ou um número real maior ou igual a 1; e um PHY core, incluindo um módulo transmissor PHY para a transmissão de sinais primários a uma taxa de dados de M/N Gbps, além de um módulo receptor PHY para o recebimento de 0 sinais secundários a uma taxa de dados de MIN Gbps; em que os sinais primários e secundários correspondem pelo menos ao padrão 1000BASE-T, onde M = 1, ou ao padrão 10GBASE-T, em que M = 10. LONG RANGE ETHERNET FOR 1000BASE-T and 10GBASE-T. The present invention relates to a physical layer device (PHY) with corresponding methods which is characterized by the fact that it has: a data rate module for selecting a data rate divisor N, where N represents at least a positive integer or a real number greater than or equal to 1; and a PHY core, including a PHY transmitter module for transmitting primary signals at a data rate of M/N Gbps, in addition to a PHY receiver module for receiving 0 secondary signals at a data rate of MIN Gbps; where the primary and secondary signals correspond at least to the 1000BASE-T pattern, where M = 1, or the 10GBASE-T pattern, where M = 10.

Communication apparatus and communication method

A communication apparatus includes a physical layer circuit that functions as a physical layer for communication with a communication destination and can perform an automatic negotiation with the communication destination for determining communication setting information representing physical setting of communication with the communication destination, a nonvolatile storage unit, and a control unit that controls the physical layer circuit. In one operating mode, the control unit controls the physical layer circuit such that an automatic negotiation with the communication destination is performed and communication setting information determined by the automatic negotiation in the storage unit is written. In another operating mode, the control unit writes the communication setting information stored in the storage unit in the physical layer circuit.

Method for setting link speed of dual port switch

本发明涉及一种用于设置双端口交换机的链路速度的方法，并且更特别地涉及一种用于设置双端口交换机的链路速度的方法，其将被包括在使用直通分组交换方案的双端口交换机中的端口的链路速度控制为彼此相等。

Port status synchronization method, and related device and system

The present application discloses a port status synchronization method, related device, and system, where a PHY device or an external processor connected to a PHY device determines whether a first service interface of the PHY device changes; and if the first service interface changes, controls a second service interface of the PHY device to restart auto-negotiation and sends, by using the second service interface, an auto-negotiation advertisement packet to a first device connected to the second service interface, so as to trigger the first device to synchronize, according to the auto-negotiation advertisement packet, a status of the second service interface and a status of the first service interface. In this way, a purpose of performing port status negotiation and synchronization between a MAC device or the first device and the PHY device by using a service interface is achieved, without a need of disposing a management MDIO interface to connect the PHY device and the MAC device, thereby simplifying design of a circuit interface; and an extra management module or management channel does not need to be disposed to connect the PHY device and the MAC device, thereby reducing an information exchange node and enhancing reliability of management information transmission.

Equipment binding method and equipment binding device

本公开提出一种设备绑定方法，所述方法包括：向地局域网中的待绑定设备获取绑定口令；其中所述绑定口令已由所述待绑定设备上传至服务端；向所述服务端发送与所述待绑定设备进行绑定的绑定请求；所述绑定请求携带所述绑定口令以及用户登录ID，以使得所述服务端在所述绑定请求中携带的绑定口令与所述待绑定设备上传的绑定口令匹配时，建立所述用户登录ID与所述待绑定设备的绑定关系。公开可以避免由于用户登录ID泄露而导致的错误绑定，从而可以提高设备自身的安全性。

Method and apparatus for resetting, enabling and freezing a communication device in a diagnostic process

A resetting, enabling and freezing system is provided for controlling a communication device in a diagnostic process. A hardware reset of the device may be performed by a host via a reset pin of a PCI interface. A software reset of the device may be provided by setting a reset bit in a command register. To stop operations of the device substantially instantaneously, a freeze mode of diagnostics is provided. The freeze mode may be initiated using hardware or software freezing. To provide the hardware freezing, diagnostic logic is supplied with a freeze signal via a freeze pin of the PCI interface. The software freezing is performed by setting a freeze bit in the command register. To enable a diagnostician to reproduce an event causing an error, an enable/disable mode of diagnostics is carried out. In this mode, elements of the device are disabled one after another in a serial fashion, with a disable signal being passed serially from one element to another. After the elements are disabled, they may be set into a chosen state to recreate a required event.

Systems and methods for communication and/or control of scalable, modular network nodes

Methods and Systems are described for control at/of a network node. The network node can include a control module and first and second modules coupled to the control module. The first module can be configured to select first input/output (I/O) types of a field device coupled at an I/O interface of the network node. The second module can be configured to select a second I/O types of the field device. The first and second modules can be coupled to the I/O interface through a field device coupler.

Method and apparatus for capturing source and destination traffic

A network switch configured for switching data packets across multiple ports uses an address table to generate frame forwarding information. The address table includes a field for capturing data transmissions between designated stations so that a management agent can monitor data conversations. When a data conversation between predetermined stations is detected, the switch forwards the data to the appropriate output ports identified in the address table and also forwards the data to a management agent.

System, method and apparatus for multi-lane auto-negotiation over reduced lane media

Systems and methods for transmitting data according to an auto-negotiated data rate

A transceiver of a first network device including an autonegotiation circuit and a first serializer interface. The auto-negotiation circuit is to negotiate a first data rate for transmission of data between the first network device and a second network device. The first serializer interface to receive the negotiated first data rate from the auto-negotiation circuit, receive first data from the second network device at the negotiated first data rate, replicate portions of the first data received from the second network device in accordance with the negotiated first data rate, and transmit, at a second data rate different from the first data rate, the first data including the replicated portions from the first serializer interface to a second serializer interface of the first network device.

Communication device and method

通信装置具有：物理层电路，其担当与通信对象之间的通信的物理层，能够进行自动协商，该自动协商用于与通信对象之间决定表示通信的物理设定的通信设定信息；非易失性的存储部；以及控制部，其对物理层电路进行控制。在一种动作模式下，控制部对物理层电路进行控制而与通信对象之间进行自动协商，将通过自动协商而决定的通信设定信息写入至存储部，在另一种动作模式下，该控制部将在存储部存储的通信设定信息写入至物理层电路。

Network device with multiple MAC/PHY ports

A network device comprises a multi-port MAC device that includes N MAC devices and that outputs a port multiplexed and encoded parallel data stream. A first serializer/deserializer (SERDES) serializes the port multiplexed and encoded parallel data stream from the multi-port MAC device.

Synchronization method and apparatus for interface parameters

Integrated multiport switch having shared media access control circuitry

An integrated multiport switch (IMS) in which one combinational logic and register arrangement is provided for executing similar media access control (MAC) functions for a plurality of switch ports. The current access state at each of a plurality of switch ports is maintained at a single state storage location, whereby access of a stored port MAC state and update thereof is simplified. Access to state storage in coordination with the single common combinational logic and register arrangement enables MAC functions for each of the plurality of ports to be performed on a time shared basis to maximize efficiency of use of chip resources and architecture space.

Method and apparatus for resolving deadlock of auto-negotiation sequence between switches

A transmission repeater has a function of recovery to normal out of the deadlock state of auto-negotiation sequence between switches. The switches exchange auto-negotiation configuration codes via first and second transmission repeaters for a state transition. The first transmission repeater monitors auto-negotiation configuration codes among data transmitted from the opposed switch, and when detecting more than a predetermined number of configuration codes of auto-negotiation having been transmitted during a given period of time, determines that the auto-negotiation sequence between the switches is at a deadlock, and reports it to the second transmission repeater, which then disconnects optical signals from the sending end of the second transmission repeater to the switch for more than twice the propagation time of signals between the switches, thus resolving the deadlock between the switches.