Schnelles Ethernet mit einer Bitfolgefrequenz von 150 Mps

Adapting clock rate of digital signals for SDH network or optical transport network, by buffering and inserting or removing bits or bit sequences from pulse frame

The clock rate of a first digital signal (DS1) that is inserted into pulse frames (PR), is adapted to a second clock rate. The first signal is continuously read into a buffer memory (PS1), and several bits or bit sequences are buffered. The first signal is then read from the buffer at the second clock rate, and a number of selected bits or bit sequences are inserted or removed from the pulse frame, to provide a second signal (DS2) with a changed number of bits or bit sequences, but with the substantially the same pulse frame period. Independent claims are also included for an apparatus for adapting clock rate, and for an apparatus for reconverting the second signal into the first signal.

Adaptive rate traffic recovery mechanism for communication networks

PROCEDURE FOR THE SUPPORT OF ETHERNET MACSCHALTUNGEN

NETWORK CONTROL MECHANISM AND - PROCEDURES FOR THE DETERMINATION OF A PATH IN AN INTEGRATED COMMUNICATIONS NETWORK WORK

PROCEDURE AND DEVICE FOR THE DEMULTIPLEXEN AND MULTIPLEX ONE

PROCEDURE AND DEVICE FOR THE SUPPLY OF A RIVER WITH MINIMUM UBERLAST OF ETHERNETVERKEHR WHICH OVER SDH/SONET NETWORK TRANSFERRING BECOME

PROCEDURE AND KNOT FOR THE ALTERNATE ROUTING OF HIGH-SPEED FRAMEWORKS IN A MESH-WELL-BEHAVED NETWORK AS WELL AS ASSOCIATED ONE TRANSMISSION LAST STOP

DEVICE AND PROCEDURE FOR TRANSFERRING A GIGABIT ETHERNETS SIGNAL BY ONE POINT TO POINT RADIO SYSTEM WITH HIGH CAPACITY

MULTIPLE SERVICE RING WITH CAPABILITIES OF TRANSMITTING AND SWITCHING DATA, VIDEO AND VOICE

METHOD AND APPARATUS FOR TRANSLATING SDH/SONET FRAMES TO ETHERNET FRAMES

A translation engine is provided for efficiently translating SDH/SONET frames (101) to Ethernet frames (105) and vice versa. In accordance with one embodiment, a translation system includes a buffer (103) for holding SDH/SONET (101) and Ethernet frames (105). An Ethernet Media Access Control (MAC) address for a corresponding SDH/SONET TDM slot (103 E-103 F) further provided. A translation engine for translating SDH/SONET frames (101) into Ethernet frames (105) is in communication with an output interface. The SDH/SONET payload (101 A) is sent through a translation engine to translate the SDH / SONET payload (101 A) into an Ethernet payload (105 A). For translating from Ethernet to SDH / SONET, a reverse process occurs.

FRAME GENERATING DEVICE

A frame generating device includes an inserting portion and an accommodating portion. The inserting portion inserts a first fixed stuff byt e and a second fixed stuff byte into a payload area of an OTU frame, the first fixed stuff byte being of (8 + 10n ("n" is zero or a given positive integer)) X 4 rows, the second fixed stuff byte being of a given byte X 4 rows, the given byte being equal to zer o or more and being equal to (24-10n) or more. The accommodating portion accommodates Ethernet signal in the payload area other than the first fixed stuff byte an d the second fixed stuff byte.

PROCESS OF TRANSMISSION Of a MESSAGE OF the TYPE ESMC THROUGH a FIELD OF the TYPE SONET/SDH

ENCAPSULATION OF SCREENS STM-N/STS-M UNDER ETHERNET

Un dispositif (D1) est dédié au traitement de trames de données de type STM-n/STS-m au sein d'un réseau de communication. Ce dispositif (D1) comprend au moins une interface de lignes STM-n/STS-m (LIU1), propre à recevoir des trames de données de type STM-n/STS-m d'un réseau de communication, et des moyens de traitement (MT) chargés, lorsqu'ils reçoivent d'une interface (LIU1) des données d'une trame STM-n/STS-m, i) de segmenter cette trame en m groupes de p octets successifs, puis ii) d'associer à chaque groupe un entête de contrôle comprenant des données représentatives de leur position au sein de la trame STM-n/STS-m, et iii) d'encapsuler chaque groupe et l'entête de contrôle associé dans un champ de données utiles d'une trame Ethernet.

A METHOD FOR TRANSFERRING DATA FROM HIGH-SPEED ETHERNET TO OPTICAL TRANSPORT NETWORK AS WELL AS THE DATA INTERFACE AND DEVICE THEREOF

A method for transferring data from high-speed Ethernet (10GE) to Optical Transport Network (OTN) as well as the data interface and device thereof. The basic principle of the invention implements the seamless transmission from 10GE to OTN by the flow control, rate match and mapping encapsulation; based on existing network structure, it may complete respectively using MAC, PCS and OTNIS. The present invention needs only once the data mapping encapsulation, and implements directly the transparent transmission from 10GE to OTN on the physical layer, due to rate match as mapping, so it can perform in the form of conforming standard completely, ensure the efficiency and quality of the service transmission.

Transmission apparatus

A transmission apparatus is disclosed, which performs positive/negative stuffing with 8-bit/10-bit (8B/10B) codes being kept intact while retaining the normality of 8B/10B codes and the continuity of running disparity (RD) without termination of 8B/10B codes of a plurality of Gigabit Ethernet (GbE) signals received. The apparatus then executes multiplexing and separation after synchronization of the plurality of signals, thereby achieving the “transparent” transport of management information which is contained in the 8B10B codes between user devices.

Adaptor and method for mapping a fast ethernet payload input signal to a synchronous payload envelope, as well as a clock selector for use therewith

Under-utilization of payload capacity of SONET/SDH SPE/VC when transporting 100 Mbps fast ethernet is avoided by providing a fast ethernet that is exactly compatible with ISO/IEC 8802-3 (ANSI/IEEE Standard 802.3), except that it is operated at 150 Mbps rather than 100 Mbps. At 150 Mbps, the payload capacity can be filled.

Gigabit ethernet interface to synchronous optical network (SONET) ring

A method and apparatus for routing data packets via a synchronous optical (SONET) network from devices connected to a local area network to devices connected to other local area networks. At each transport node in the SONET network the data packets are unloaded from SONET payloads and requeued for transmission on an output path. This allows for easy resolution of contention between devices transmitting at the same time and avoids pre-assigning SONET channels. Source and destination address information from the data packets can be used to route the data packets through the SONET network. A time-to-live indicator can be used to find the shortest path to a destination address in a SONET ring network or any bidirectional ring network.

Method for obtaining target transmission route, related device, and system

Embodiments of this application provide a method for obtaining a target transmission route, a related device, and a system. The method is applied to a flexible Ethernet FlexE networking network and includes: receiving a first message that is sent by a second node for requesting to query for a transmission route of a first FlexE client; and sending a second message to the second node, where a route information entry in the second message includes route information of the FlexE client on each node. Ingress information and egress information that are of a FlexE client on a route node are recorded as a transmission route of each hop. A segment-to-segment transmission route in the FlexE network can be dynamically found in real time, a planned and deployed transmission route is compared with an actually found route, to evaluate a network running status.

Method and apparatus for transporting a client layer signal over an optical transport network (OTN)

In order to facilitate the transport of 1 Gbit/s Ethernet signals over an Optical Transport Network using the Optical Transport Hierarchy as specified by ITU-T G.709, a new OTH entity referred to as Optical Channel Data Unit-0 (ODU0, 101) with a capacity of approximately 1.22 Gbit/s is defined. This new entity fits perfectly into the existing OTH multiplexing structure, allowing the transport of two times a 1 Gbit/s Ethernet client layer signal within the capacity of one ODU1 (110), while being individually switchable. A 1 Gbit/s Ethernet signal (102) can be mapped into the ODU0 payload (103) using the Transparent Generic Framing Procedure (GFP-T) encapsulation technique as specified in Rec. G.7041.

METHOD AND APPARATUS FOR SENDING AND RECEIVING MULTIFRAME, AND STORAGE MEDIUM

Provided are a method and apparatus for sending and receiving a multiframe, a communication device, and a communication network system. The method includes: determining a multiframe identifier used for identifying a multiframe number according to a number of timeslots of a physical layer, where the multiframe number is the number of frames constituting one multiframe; and sending the multiframe to a receiving end, where the multiframe carries the multiframe identifier. Further provided is a computer storage medium. 1. A method for sending a multiframe , comprising:determining, according to a number of timeslots of a physical layer, a multiframe identifier for identifying a multiframe number, wherein the multiframe number is a number of frames constituting the multiframe; andsending the multiframe to a receiving end, wherein the multiframe identifier is carried in the multiframe.2. The method of claim 1 , wherein the multiframe number is nth power of 2 claim 1 , wherein the n is a minimum positive integer that causes the multiframe number greater than or equal to the number of the timeslots.3. The method of claim 1 , wherein identifier values of the multiframe identifier are sequentially carried in preset positions of overhead blocks of respective frames constituting the multiframe claim 1 , wherein a number of the identifier values is the same as the multiframe number.4. The method of claim 3 , wherein the identifier values of the multiframe identifier are a preset number of consecutive “0”s and the preset number of consecutive “1”s in sequence claim 3 , wherein the multiframe number is an even number and the preset number is half of the multiframe number.5. The method of claim 3 , wherein each of the preset positions is an Overhead Multiframe Indicator (OMF) field of respective one of the overhead blocks.6. The method of claim 1 , wherein before the determining claim 1 , according to the number of the timeslots of the physical layer claim 1 , the multiframe ...

Меthоd аnd аppаrаtus fоr trаnspоrting а сliеnt lауеr signаl оvеr аn оptiсаl trаnspоrt nеtwоrk (ОТN)

In оrdеr tо fасilitаtе thе trаnspоrt оf 1 Gbit/s Еthеrnеt signаls оvеr аn Оptiсаl Тrаnspоrt Nеtwоrk using thе Оptiсаl Тrаnspоrt Нiеrаrсhу аs spесifiеd bу IТU-Т G.709, а nеw ОТН еntitу rеfеrrеd tо аs Оptiсаl Сhаnnеl Dаtа Unit-0 (ОDU0, 101) with а саpасitу оf аpprохimаtеlу 1.22 Gbit/s is dеfinеd. Тhis nеw еntitу fits pеrfесtlу intо thе ехisting ОТН multiplехing struсturе, аllоwing thе trаnspоrt оf twо timеs а 1 Gbit/s Еthеrnеt сliеnt lауеr signаl within thе саpасitу оf оnе ОDU1 (110), whilе bеing individuаllу switсhаblе. А 1 Gbit/s Еthеrnеt signаl (102) саn bе mаppеd intо thе ОDU0 pауlоаd (103) using thе Тrаnspаrеnt Gеnеriс Frаming Рrосеdurе (GFР-Т) еnсаpsulаtiоn tесhniquе аs spесifiеd in Rес. G.7041.

СПОСОБ И УСТРОЙСТВО ДЛЯ ПЕРЕДАЧИ И ПРИЕМА СИГНАЛА КЛИЕНТА

Изобретение относится к технике связи и может использоваться в системах оптической связи. Технический результат состоит в повышении помехоустойчивости. Для этого способ включает в себя этапы, на которых: отображают сигнал клиента на каналы фрейма параллельной передачи, причем фрейм параллельной передачи включает в себя по меньшей мере два канала; добавляют служебные сигналы для каналов фрейма параллельной передачи после отображения для формирования каналов передачи фрейма параллельной передачи, причем скорости передачи битов в каналах передачи фрейма параллельной передачи являются фиксированными; и выполняют модуляцию каналов передачи фрейма параллельной передачи на одной или более оптических несущих в одном оптическо-волоконном кабеле, и передают оптическую несущую после модуляции. В соответствии с настоящим изобретением определяется структура фрейма параллельной передачи, сигнал клиента, в частности многоканальный сигнал клиента, отображается на каналы передачи фрейма параллельной передачи ...

СПОСОБ И УСТРОЙСТВО ДЛЯ ПЕРЕДАЧИ И ПРИЕМА СИГНАЛА КЛИЕНТА

... 1. Способ передачи сигнала клиента, содержащий этапы, на которых:отображают сигнал клиента на каналы фрейма параллельной передачи, причем фрейм параллельной передачи содержит по меньшей мере два канала;после отображения добавляют служебные сигналы для каналов фрейма параллельной передачи для формирования каналов передачи фрейма параллельной передачи, при этом добавляют после отображения служебные сигналы управления к одному из каналов фрейма параллельной передачи, причем сигналы управления используют для централизованного управления каналами фрейма параллельной передачи после отображения, а скорости передачи битов в каналах передачи фрейма параллельной передачи являются фиксированными; ивыполняют модуляцию каналов передачи фрейма параллельной передачи на одной или более оптических несущих в одном оптическо-волоконном кабеле и передают упомянутую оптическую несущую после модуляции.2. Способ по п. 1, в котором скорость фрейма параллельной передачи зависит от количества каналов передачи фрейма ...

Communication method between Ethernets (RTM) via synchronous digital hierarchy network, by receiving message requesting reduction of message sending from one device to other

A first device (GFP MAPPER) receives a signaling message (REDUCE) from a second device (GFP DEMAPPER) via the synchronous digital hierarchy (SDH) network. The signaling message requests a reduction in message sending from the first device to the second device (i.e. a reduction in data rate). Independent claims are included for a GFP MAPPER device, and for a GFP DEMAPPER device.

Adaptive rate traffic recovery mechanism for communication networks

Communication system

IMPROVED TRANSPORT OF ETHERNET TRAFFIC OVER SDH/SONET TRANSPORTNETZ

PROCEDURE FOR THE CONTROLLING OF THE RIVER OF THE ETHERNETDATEN IN A SYNCHRONOUS TRANSMISSION NETWORK WITH DATA HIERARCHY

A PACKAGING OF STM N/STS M FRAMEWORK IN ETHERNET

TRANSMISSION METHOD FOR TRAFFIC SIGNALS WITH LOW SPEED SPEED IN AN OPTICAL TRANSMISSION NETWORK WORK AND DEVICE

PROCEDURE AND DEVICE FOR MANUFACTURING A NETWORK CONNECTING SERVICE AND AN AUTOMATIC EXCHANGE OPTICAL NETWORK

SELFADAPTING RANGE MANAGEMENT

PROCEDURE FOR THE MAPPING AND DEMAPPING OF DATA INFORMATION ABOUT THE MEMBERS OF A CONCATENATED GROUP

TRAFFIC ADMINISTRATION IN A SYNCHRONOUS COMMUNICATIONS NETWORK WORK

Method and apparatus for converting data packets between a higher bandwidth network and lower bandwidth network

High speed ethernet based on sonet technology

Service transmission method and agent 1 transmission device

본 발명의 실시예는 서비스 송신 방법 및 제1 송신 디바이스를 개시하며, 방법은, t의 레이트를 갖는 n개의 클라이언트 신호를, FlexO 프레임의 m개의 레인의 ms/t개의 로드 서브영역에 매핑하는 단계(FlexO 프레임의 m개의 레인 각각의 페이로드 영역은 s/t개의 로드 서브영역으로 분할되고, FlexO 프레임의 각 레인은 s의 송신 레이트를 갖는 FlexO 레인을 사용함으로써 송신됨)와, FlexO 프레임의 각 레인에 대한 FlexO 유형 정보, 시간슬롯 오버헤드 정보 및 신호 매핑 정보를 구성하는 단계와, s의 송신 레이트를 갖는 m개의 FlexO 레인을 사용함으로써 FlexO 프레임의 m개의 레인을 제2 송신 디바이스에 송신하는 단계(제2 송신 디바이스는, FlexO 유형 정보, 시간슬롯 오버헤드 정보 및 신호 매핑 정보에 따라, ms/t개의 로드 서브영역에서 반송되는 클라이언트 신호를 파싱하도록 구성됨)를 포함한다. 본 발명의 실시예에 따르면, 서비스 송신 유연성이 개선된다. An embodiment of the present invention discloses a service transmission method and a first transmission device, the method comprising: mapping n client signals having a rate of t to ms / t load subregions of m lanes of a FlexO frame. (The payload region of each of the m lanes of the FlexO frame is divided into s / t load subregions, and each lane of the FlexO frame is transmitted by using a FlexO lane having a transmission rate of s) and each of the FlexO frames Configuring FlexO type information, time slot overhead information, and signal mapping information for the lane, and transmitting m lanes of the FlexO frame to the second transmission device by using m FlexO lanes having a transmission rate of s. (The second transmission device parses the client signal carried in ms / t load sub-regions according to FlexO type information, time slot overhead information, and signal mapping information. And a so configured). According to an embodiment of the present invention, service transmission flexibility is improved.

DATA PROCESSING METHOD IN OPTICAL TRANSPORT NETWORK, AND RELATED DEVICE AND SYSTEM

Provided are a data processing method in an optical transport network, and a related device and system. The data processing method in an optical transport network includes: encapsulating service data into an optical payload unit; mapping the optical payload unit to an optical channel data unit; mapping the optical channel data unit to the payload area of an optical burst transport unit; photo-electrically converting the optical burst transport unit to form an optical burst optical signal; bearing the optical burst optical signal onto the optical slot of an optical burst channel; and transmitting the optical burst channel onto a line. The technical solutions provided in the present invention can simplify the data processing process effectively and reduce the data processing time delay.

HIGH SPEED ETHERNET BASED ON SONET TECHNOLOGY

La présente invention concerne l'Ethernet haut débit, qui utilise la technologie fine SONET lorsque le véhicule de couche physique fait un large usage d'équipement SONET, et représente une étape vers l'intégration des grands réseau de télécommunication (WAN), des réseaux urbains (MAN) et des réseaux locaux (LAN). L'Ethernet haut débit tire aussi avantage des fonctionnalités SONET courantes, telles que la structure de trame, le cryptage, l'intégrité des données, etc.. Des zones de correction d'erreur aval sont présentes dans les extensions transport (TOH) de façon à réaliser une correction d'erreur de haut niveau. La trame de l'Ethernet à haut débit comprend une zone type de longueur générée au niveau de la sous couche de codage physique (PCS) et une zone correction d'erreur d'en-tête (HEC) générée au niveau de la couche adaptateurs de support physique. La trame est acheminée dans un réseau en utilisant l'adresse source, l'adresse de destination et une étiquette.

SYSTEM AND METHOD FOR MANY-TO-MANY LAYER 2 AGGREGATION FOR SONET PATHS

Provided are a system and method for many-to-many layer 2 aggregation for SONET paths in a communications environment. In one example, the method includes receiving the data unit from either a layer 2 mapped data port or a SONET path, and classifying the data unit based on information within the data unit to identify which one of multiple logical flows is associated with the data unit. Each of the logical flows connects a data port with a SONET path and vice versa, and the data ports and SONET paths do not have a one-to-one correspondence. The data unit is directed to an outgoing SONET path associated with the logical flow if the data unit was received from the data port and to an outgoing data port associated with the logical flow if the data unit was received from a SONET path.

SYSTEM AND METHOD FOR MANAGING AN OPTICAL NETWORKING SERVICE

Described are a system and method for managing a service across an optical network over a dedicated circuit between a first and second service termination points. Each service termination point generates a service performance report message. Each service performance report messages has information related to a performance of the service as determined by the service termination point generating the message. The service termination points exchange the service performance report messages over a service management channel to enable an assessment of the performance of the service based on the service performance report messages from both service termination points. Through access to and use of the service management channel, service providers can implement an edge management model or a core management model for measuring the performance of their services with respect to service level agreements governing those services.

Method and device for delivering communication in ethernet-over-synchronous networks

A method for enabling provision of service-levels in an Ethernet-over-synchronous communication network, the method comprising: receiving Ethernet frames at an input rate; mapping said Ethernet frames into a synchronous protocol; generating a pause signal after a received amount of said Ethernet frames reaches or exceeds a threshold capacity level, said pause signal being generated in accordance with a service-level agreement (SLA) determining an output rate based upon an aggregate rate enabled by K memory containers out of N available memory containers, where K and N are integers; and outputting the mapped data frames from the K memory containers thereby providing synchronous transmissions at said output rate.

SYSTEMS AND METHODS FOR ENHANCED AUTONEGOTIATION

An improved autonegotiation approach includes determining that a negotiated rate between a first network device and a second network device exceeds data transfer capacity over a network path downstream of the second network device. In response, a configuration message is generated and transmitted to the first network device. When received by the first network device, the configuration message causes the first network device to limit data transfer between the first network device and the second network device to no more than the downstream data transfer capacity. 1. A method of establishing a data transfer rate between network endpoints , the method comprising:initiating a connection between a first endpoint of a first network and a second endpoint of a second network, wherein the connection between the endpoint of the first network and the endpoint of the second network can transfer data at up to a first transfer rate;determining the first transfer rate is greater than a second transfer rate for transferring data over the second network, wherein the step of determining the first rate is greater than the second transfer rate occurs in response to identifying a decrease in throughput along a communication path between the second endpoint and a third endpoint of the second network;transmitting, in response to determining the first transfer rate is greater than the second transfer rate, a configuration message to a network device corresponding to the first endpoint, wherein the configuration message causes the network device to limit transfer of data over the connection from the first endpoint to the second endpoint to no greater than the second transfer rate, wherein the second network includes two or more third endpoints connected to a respective sub-interface of the second endpoint and enabling a respective transfer rate therebetween, and the second transfer rate is the respective transfer rate or a sum of the respective transfer rates between the second endpoint and ...

SERVICE DELIVERY METHOD, DEVICE AND SYSTEM, AND STORAGE MEDIUM

Disclosed are a traffic delivery method, apparatus and system, and a relevant computer storage medium. The method may include: determining the number of traffic flows according to a traffic bandwidth of a traffic to be transmitted; grouping the traffic flows of the traffic to be transmitted according to the number of the traffic flows and a preset grouping policy to obtain a plurality of traffic groups of the traffic to be transmitted; where the number of the traffic groups is equal to the number of physical layer (PHY) transport channels; and determining a PHY transport channel corresponding to each of the traffic groups of the traffic to be transmitted according to a matching relationship between traffic bandwidths of the traffic groups and transmission rates of the PHY transport channels, and sending the each of the traffic groups of the traffic to be transmitted through the PHY transport channel corresponding to the each of the traffic groups of the traffic to be transmitted.

Service Management Channel for Managing an Optical Networking Service

An optical network and method for managing a service across an optical network over a dedicated circuit between first and second service termination points include generating a service performance report message (PRM) at each service termination point. Each service PRM has service-specific information related to a performance of the service as determined by the service termination point generating that service PRM. Each service PRM identifies the service to which the service-specific information in that service PRM pertains. Each service termination point transmits the service PRM generated by that service termination point across the optical network over the dedicated circuit to the other service termination point through a service management channel of an optical transport facility. Either of the first and second service termination points is accessed to evaluate an end-to-end performance of the service based on a comparison of the service PRM generated by the first service termination ...

Apparatus for transmitting multi-frame in multiplex transmission and method of doing the same

An apparatus for transmitting a multi-frame in multiplex transmission, includes (a) a first interface through which a plurality of data traffics is input and output, (b) a second interface through which a SONET/SDH frame is received from a SONET/SDH network and through which a SONET/SDH frame produced by multiplexing the data traffics is output to the SONET/SDH network, (c) a mapper which receives the data traffics through the first interface, maps each of the data traffics, in a multi-frame including SONET/SDH frames by the number equal to or greater than the number of the data traffics, to each of the SONET/SDH frames, and transmits the SONET/SDH frames to the second interface, and (d) a demapper which receives a multi-frame which the second interface receives through the SONET/SDH network, extracts each of the data traffics out of each of SONET/SDH frames constituting the multi-frame, and transmits the thus extracted SONET/SDH frames to the first interface.

Меthоd аnd аppаrаtus fоr trаnspоrting а сliеnt lауеr signаl оvеr аn оptiсаl trаnspоrt nеtwоrk (ОТN)

In оrdеr tо fасilitаtе thе trаnspоrt оf 1 Gbit/s Еthеrnеt signаls оvеr аn Оptiсаl Тrаnspоrt Nеtwоrk using thе Оptiсаl Тrаnspоrt Нiеrаrсhу аs spесifiеd bу IТU-Т G.709, а nеw ОТН еntitу rеfеrrеd tо аs Оptiсаl Сhаnnеl Dаtа Unit-0 (ОDU0, 101) with а саpасitу оf аpprохimаtеlу 1.22 Gbit/s is dеfinеd. Тhis nеw еntitу fits pеrfесtlу intо thе ехisting ОТН multiplехing struсturе, аllоwing thе trаnspоrt оf twо timеs а 1 Gbit/s Еthеrnеt сliеnt lауеr signаl within thе саpасitу оf оnе ОDU1 (110), whilе bеing individuаllу switсhаblе. А 1 Gbit/s Еthеrnеt signаl (102) саn bе mаppеd intо thе ОDU0 pауlоаd (103) using thе Тrаnspаrеnt Gеnеriс Frаming Рrосеdurе (GFР-Т) еnсаpsulаtiоn tесhniquе аs spесifiеd in Rес. G.7041.

A METHOD FOR TRANSPARENT TRANSMITTING 10GE ETHERNET SIGNAL THROUGH THE OPTICAL TRANSPORT NETWORK

The present invention discloses a method for transparently transmitting the 10GE Ethernet signal through the optical transport network. The method uses a first asynchronous mapping manner to transparently transmit 10GE Ethernet signal; wherein the construction of the first asynchronous mapping manner includes the following steps: A1, indicating the first asynchronous mapping manner using a reserved value of anyone of payload structure identifiers; A2, constructing an optical channel transport unit frame of the first asynchronous mapping manner, in an adjusting and controlling byte thereof, predefining, using at least three bits, a filling state of a positive/negative adjusting byte, adding a negative adjusting byte in an optical channel payload unit overhead region of the optical channel transport unit frame, and adding a positive adjusting byte in a payload structure; A3, constructing, using a reference clock, an overclocked optical channel transport unit frame, and the frequency thereof ...

SDH protection optimized for data networking

A protection method for providing integrity of transport of a data packet stream over a plurality of synchronous digital channels each comprising a virtual container stream, the virtual container streams being virtually concatenated together is disclosed. Data packets from a data stream are mapped to a plurality of memory areas, from which the data packets are transferred to payloads of a plurality of virtual container streams which are carried over a synchronous digital network by a plurality of different routes, being either path connections or rings. Upon failure of a path or section, a receiving entity signals to a transmitting synchronous digital entity via conventional path or section termination signaling functions to alert the transmitting entity of a failure in a path or section. Upon receiving a path or ring failure signal, the transmitting entity gracefully degrades to offer a reduced bandwidth.

СПОСОБ УПРАВЛЕНИЯ ПОТОКОМ ДАННЫХ СЕТИ ETHERNET В ПЕРЕДАЮЩЕЙ СЕТИ С СИНХРОННОЙ ЦИФРОВОЙ ИЕРАРХИЕЙ

FIELD: technology for controlling data stream of Ethernet network. SUBSTANCE: method includes: creation of data buffer at receiving side; and direction of appropriate stream control frame depending on current volume of data in data buffer. EFFECT: increased efficiency of control over flow of data and increased data transfer reliability. 8 cl, 2 dwg ÐÎÑÑÈÉÑÊÀß ÔÅÄÅÐÀÖÈß RU (19) (11) 2 284 667 (13) C2 (51) ÌÏÊ H04L 12/56 (2006.01) ÔÅÄÅÐÀËÜÍÀß ÑËÓÆÁÀ ÏÎ ÈÍÒÅËËÅÊÒÓÀËÜÍÎÉ ÑÎÁÑÒÂÅÍÍÎÑÒÈ, ÏÀÒÅÍÒÀÌ È ÒÎÂÀÐÍÛÌ ÇÍÀÊÀÌ (12) ÎÏÈÑÀÍÈÅ ÈÇÎÁÐÅÒÅÍÈß Ê ÏÀÒÅÍÒÓ (21), (22) Çà âêà: 2004122645/09, 30.05.2002 (72) Àâòîð(û): ÒÀÍ Þí (CN), ÕÝ Öç íüôýé (CN) (24) Äàòà íà÷àëà îòñ÷åòà ñðîêà äåéñòâè ïàòåíòà: 30.05.2002 (73) Ïàòåíòîîáëàäàòåëü(è): Õþâýé Òåêíîëîäæèç Êî., Ëòä. (CN) R U (30) Êîíâåíöèîííûé ïðèîðèòåò: 19.12.2001 CN 01143099.0 (43) Äàòà ïóáëèêàöèè çà âêè: 20.01.2006 (45) Îïóáëèêîâàíî: 27.09.2006 Áþë. ¹ 27 2 2 8 4 6 6 7 (56) Ñïèñîê äîêóìåíòîâ, öèòèðîâàííûõ â îò÷åòå î ïîèñêå: RU 2117403 C1, 10.08.1998. RU 2034447 C1, 10.08.1998. WO 98/59523 A1, 30.12.1998. (85) Äàòà ïåðåâîäà çà âêè PCT íà íàöèîíàëüíóþ ôàçó: 19.07.2004 Àäðåñ äë ïåðåïèñêè: 191002, Ñàíêò-Ïåòåðáóðã, à/ 5, ÎÎÎ "Ë ïóíîâ è ïàðòíåðû", ïàò.ïîâ. Â.Â.Äîùå÷êèíîé (54) ÑÏÎÑÎÁ ÓÏÐÀÂËÅÍÈß ÏÎÒÎÊÎÌ ÄÀÍÍÛÕ ÑÅÒÈ ETHERNET  ÏÅÐÅÄÀÞÙÅÉ ÑÅÒÈ Ñ ÑÈÍÕÐÎÍÍÎÉ ÖÈÔÐÎÂÎÉ ÈÅÐÀÐÕÈÅÉ (57) Ðåôåðàò: Èçîáðåòåíèå îòíîñèòñ ê óïðàâëåíèþ ïîòîêîì äàííûõ ñåòè Ethernet. Òåõíè÷åñêèé ðåçóëüòàò ñîñòîèò â ïîâûøåíèè ýôôåêòèâíîñòè óïðàâëåíè ïîòîêîì äàííûõ è íàäåæíîñòè ïåðåäà÷è äàííûõ. Äë ýòîãî ñïîñîá âêëþ÷àåò: ñîçäàíèå íà ïðèíèìàþùåé ñòîðîíå áóôåðà äàííûõ è íàïðàâëåíèå ñîîòâåòñòâóþùåãî êàäðà óïðàâëåíè ïîòîêîì â çàâèñèìîñòè îò òåêóùåãî îáúåìà äàííûõ â áóôåðå äàííûõ. 7 ç.ï. ô-ëû, 2 èë. R U 2 2 8 4 6 6 7 (87) Ïóáëèêàöè PCT: WO 03/053009 (26.06.2003) C 2 C 2 (86) Çà âêà PCT: CN 02/00370 (30.05.2002) Ñòðàíèöà: 1 RU C 2 C 2 2 2 8 4 6 6 7 2 2 8 4 6 6 7 R U R U Ñòðàíèöà: 2 RUSSIAN FEDERATION RU (19) (11) 2 284 667 (13) C2 (51) Int. Cl. H04L 12/56 (2006.01) FEDERAL SERVICE FOR ...

СПОСОБ И УСТРОЙСТВО, ПРЕДНАЗНАЧЕННЫЕ ДЛЯ ПЕРЕДАЧИ СИГНАЛА КЛИЕНТСКОГО УРОВНЯ ЧЕРЕЗ ОПТИЧЕСКУЮ СЕТЬ ПЕРЕДАЧИ ДАННЫХ (OTN)

Изобретение к технике оптической передачи данных. Технический результат состоит в повышении пропускной способности оптической сети Ethernet. Для этого определен новый объект иерархии оптической передачи данных (ИОПД), упоминаемый как блок-0 данных оптического канала (БДОК0,) с емкостью приблизительно 1,22 Гбит/с. Этот новый объект идеально подходит для существующей структуры мультиплексирования ИОПД, что дает возможность двукратной передачи сигнала клиентского уровня Ethernet 1 Гбит/с в пределах емкости одного БДОК1, в то же время являясь отдельно коммутируемым. Сигнал Ethernet 1 Гбит/с может быть отображен в полезную нагрузку БДОК0 с использованием способа инкапсуляции прозрачной базовой процедуры формирования кадров (ПБПФК). 2 н. и 9 з.п. ф-лы, 1 табл., 8 ил.

СИСТЕМА СВЯЗИ

... 1. Система связи, имеющая канал сети синхронной цифровой иерархии (ССЦИ) между двумя узлами (21, 22), в которой канал имеет виртуальные контейнеры заранее заданной ширины полосы частот, содержит в одном узле (21) средство (40) для приема входных данных, включая пакетные данные, имеющие ширину полосы частот, превышающую указанную заранее заданную ширину полосы частот, и средство (42, 43, 44, 45) для обращенного уплотнения указанных данных в байтовом формате независимо от границ пакета в совокупности виртуальных контейнеров для передачи на указанный другой узел; средство (50, 51, 52) в другом узле (22) для приема и повторной компоновки указанных данных; и средство (52) для компенсирования задержек, вызываемых разными длинами канала отдельных виртуальных контейнеров. 2. Система по п.1, в которой следующие друг за другом байты вводят по очереди в каждый из виртуальных контейнеров для передачи на другой узел. 3. Система по п.1 или 2, в которой указанная совокупность виртуальных контейнеров является ...

СПОСОБ ОБРАБОТКИ ДАННЫХ, ПЛАТА СВЯЗИ И УСТРОЙСТВО

Изобретение относится к области технологий связи. Технический результат – уменьшение задержки передачи TDM-услуги. Для этого способ включает в себя: получение, посредством первой платы связи, потока данных блоков данных оптического канала ODU; выполнение, посредством первой платы связи, срезовой обработки над потоком ODU-данных согласно фиксированной частоте кадров с целью получения различных срезов, где каждый срез включает в себя сегмент непрерывных ODU-данных в потоке ODU-данных; раздельное заключение, посредством первой платы связи, каждого среза в Ethernet-кадр; и посылание, посредством первой платы связи, каждого Ethernet-кадра к модулю коммутации услуги мультиплексирования с разделением по времени TDM в микросхеме коммутации Ethernet так, что модуль коммутации услуги TDM посылает каждый Ethernet-кадр ко второй плате связи, к которой направляет адрес назначения MAC, переносимый в Ethernet-кадре. 7 н. и 13 з.п. ф-лы, 8 ил., 2 табл.

PROCEDURE AND EQUIPMENT FOR THE INTEGRATION OF NEARLY ETHERNET PACKAGES IN SONET CONTAINERS OVER A RADIO SYSTEM

PROCEDURE AND NETWORK ELEMENT FOR THE SAFE TRANSPORT OF ETHERNET FRAMEWORKS OVER SDH/SONET TRANSPORTATION NETWORK

PACKET SWITCHING FOR PACKAGE DATA COMMUNICATION SYSTEMS IN A MULTI-CHANNEL RADIO ARRANGEMENT

PROCEDURE AND SYSTEM FOR THE TRANSMISSION OF ETHERNETRAHMEN IN ONE SDH/SONET TRANSPORTATION NET

RIVER INSPECTION PROCEDURE FOR THE TRANSMISSION OF DATA SERVICES IN A SDH NET

COMMUNICATION SYSTEM

PROCEDURE AND DEVICE FOR TRANSLATING SDH/SONET FRAMEWORKS INTO ETHERNET FRAMEWORKS

SYSTEM AND METHOD FOR MANAGING AN OPTICAL NETWORKING SERVICE

Multi-rate, multi-protocol, multi-port line interface for a multiservice switching platform

METHOD FOR SUPPORTING ETHERNET MAC CIRCUITS

An Ethernet MAC sublayer is provided for supporting Ethernet MAC circuits in an Ethernet Network. In accordance with one embodiment, an Ethernet MAC sublayer is provided for processing and setting up circuits. The MAC sublayer provides support for higher level signaling (112, 122, 132) and routing (114, 124, 134) applications to implement Ethernet MAC circuit functionality. The MAC sublayer provides interrupts for WAN learning and circuit setup. The MAC sublayer also provides address table entry extension (2102, 2202, 2302) to allow for usage of multiple links between nodes (2100, 2200, 2300). The routing application is used to manage routing information, maintain a MAC to port mapping database, and manage port resources. The signaling application is used to set up and manage circuits. In accordance to various embodiments, circuits of various types and properties can be managed in the Ethernet Network.

A METHOD OF TRANSMITTING DATA SERVICE ON SYNCHRONOUS DIGITAL NETWORK

The invention discloses a method for data traffic transmission on a synchronous digital network to overcome the inefficiency of the data packet transmission on the present synchronous digital network equipment. The method comprises, adding an RPR processing module after Ethernet interface in the equipment; through the RPR processing module, an uplink Ethernet frame from Ethernet interface being mapped to an RPR frame; through LAPS/PPP/GFP protocol, the RPR frame being mapped into the payload of a synchronous digital network; the volume and number of the VCs and total bandwidth of the RPR being configurable. When the RPR frame arrives at the destination node of the RPR, it is stripped from the RPR and recovered to its original Ethernet frame. The invention transmits data service efficiently, the total bandwidth of the RPR is adjustable, and is statistically multiplexed.

FRAME GENERATING DEVICE

A frame generating device includes an inserting portion and an accommodating portion. The inserting portion inserts a first fixed stuff byte and a second fixed stuff byte into a payload area of an OTU frame, the first fixed stuff byte being of (8 + 10n ("n" is zero or a given positive integer)) X 4 rows, the second fixed stuff byte being of a given byte X 4 rows, the given byte being equal to zero or more and being equal to (24-10n) or more. The accommodating portion accommodates Ethernet signal in the payload area other than the first fixed stuff byte and the second fixed stuff byte.

150 MBPS FAST ETHERNET

Under-utilization of payload capacity of SONET/SDH SPE/VC when transporting 100 Mbps fast ethernet is avoided by providing a fast ethernet that is exactly compatible with ISO/IEC 8802-3 (ANSI/IEEE Standard 802.3), except that it is operated at 150 Mbps rather than 100 Mbps. At 150 Mbps, the payload capacity can be filled.

MECHANISM OF RECOVERY OF THE TRAFFIC HAS ADAPTIVE FLOW FOR NETWORKS DECOMMUNICATION

LOW SPEED RATE TRAFFIC SIGNAL TRANSMISSION METHOD IN OPTICAL TRANSMISSION NETWORK AND DEVICE

A low speed rate traffic signal transmission method in optical transmission network and device are provided in the present invention, by which the format of the low speed rate traffic optical channel data unit signal used to carry the said low speed rate traffic signal is defined; the low speed rate traffic signal is mapped to the low speed rate traffic optical channel payload unit of the low speed rate traffic optical channel data unit signal, and the overhead bytes are filled in the low speed rate traffic optical channel data unit overhead area, so to generate low speed rate traffic optical channel data unit signal; more than one low speed rate traffic optical channel data unit signals are multi-connected with the optical channel data unit signal of transmission speed rate level of the optical transmission network, and are transmitted by the optical transmission network. Based on the method, a low speed rate traffic signal transmission device in optical transmission network is also provided ...

SYSTEMS AND METHODS FOR THE INTEGRATION OF FRAMING OAM&P, AND FORWARD ERROR CORRECTION IN PLUGGABLE OPTICAL TRANSCEIVER DEVICES

The present invention provides integrated framing in pluggable optical transceivers to extend the OTN framework into metro, regional, and core applications. Additionally, the present invention provides integrated FEC and optical layer OAM&P features Ênto pluggable optical transceivers. This integration is done with existing pluggable transceivers defined by MSAs such as, but not limited to, XFP, XPAK, XENPAK, X2, XFP-E, and SFP+. Further, the present invention can be extended to new, emerging pluggable transceiver standards and specifications. The integration of framing, FEC, and optical layer OAM&P is done so that the pluggable transceiver preserves the specifications in the MSAs. This allows systems designed for existing pluggable transceivers to realize carrier-grade, robust performance without needed additional equipment such as transponders and without redesigning host equipment such as the line card to support new specifications.

SYSTEM AND METHOD FOR PERFORMING CONCATENATION OF DIVERSELY ROUTED CHANNELS

A system and method are provided for performing Local Centre Authorization Service (LCAS) in a network system, the system having a data aligner configured to align bytes of input data according to groups of members. The system also including an LCAS control manager configured to generate de- sequencing control commands in response to data input from the data aligner. The system further including a de-sequencer configured to de-sequence the input data input from the data aligner according to de- sequencing control commands received from the LCAS control manager.

METHOD, DATA INTERFACE AND DEVICE FOR TRANSPORTING DATA FROM HIGH-SPEED ETHERNET TO OPTICAL TRANSPORT NETWORK

The present invention provides a method, a data interface and a device for transporting data from a high-speed Ethernet to an OTN (Optical Transport Network), where seamless transport of Ethernet traffic to the OTN can be enabled through flow control, rate-matching, and mapping and encapsulation respectively performed at an Media Access Control Sub-layer, a Physical Coding Sub-layer, and an Optical Transport Network Interface Sub-layer. Thus, only one mapping and encapsulation of data is required to directly enable through a physical layer the transparent transport of the Ethernet traffic to the OTN, and due to the rate-matching implemented upon the mapping, the traffic transport can be enabled in a standard-compliant way with guaranteed efficiency and quality.

Synchronization signal detection for high-speed ethernet connections

A method of synchronizing master and slave nodes on a high-speed Ethernet connection includes sending a first plurality of synchronization pulse units from the master, receiving at the master a second plurality of synchronization pulse units sent by the slave in response to receipt of the first plurality of synchronization pulse units, monitoring at the master for receipt of a first synchronization pulse unit from the second plurality, having a predetermined characteristic, monitoring at the master for receipt of at least one further synchronization pulse unit, from the second plurality, having the predetermined characteristic, and recognizing receipt of the second plurality upon receipt of the first and at least one further synchronization pulse unit having the predetermined characteristic, where the first synchronization pulse unit and the at least one further synchronization pulse unit meet either a first temporal spacing condition or an integer multiple of the first temporal spacing ...

Multiprotocol packet framing technique

A method and system for packaging frames or packets encoded in a variety of formats, for example, Frame Relay, Ethernet, ATM, or TCP/IP. The method includes: accumulating first and second packets; determining the length of each packet; and storing the lengths into a header associated with the first packet. By using the length field, frame synchronization can be efficiently achieved and maintained for the packets encoded using the method.

Method and device for providing a minimum congestion flow of ethernet traffic transported over a SDH/SONET network

Disclosed is a method for providing a minimum congestion flow of Ethernet traffic that is transported through a pipe from a sending point to a receiving point over at least one SDH/SONET network, the at least one SDH/SONET network comprising network elements, fiber connections connecting the network elements and SDH/SONET virtual containers, the transport being managed through a new layer over SDH/SONET network physical layer, the new layer comprising Access Points, links of Access Point pairs and circuits, namely the possible routes for connecting a pair of Access Points. The method further comprising: generating a delay marker at the network element of the sending point; transmitting the delay marker to the network element of the receiving point and back to the network element of the sending point through at least one Circuit; calculating the time frame for the sending point network element to receive back the delay marker; and estimating the congestion of the Circuit according to the ...

SENDING METHOD, RECEIVING AND PROCESSING METHOD AND APPARATUS FOR ADAPTING PAYLOAD BANDWIDTH FOR DATA TRANSMISSION

A sending method, a receiving and processing method and an apparatus for adapting a payload bandwidth for data transmission are provided. In the method, N coding blocks containing 64B are acquired, in which N is an integer greater than or equal to 2, and the acquired N coding blocks are converted into a (64*N+1)B coding block, so that a required linear rate is reduced after conversion, thereby reducing requirements for the payload bandwidth of a bearer layer, and satisfying the payload bandwidth required for transmitting 40 Gigabit Ethernet (40 GE) or 10 Gigabit Ethernet (10 GE) MAC frames in an optical transport network (OTN).

Precise time synchronization across optical modules for group alignment

An optical system supporting timing synchronization, alignment and deskewing across optical modules includes a plurality of optical devices each providing an Optical Tributary Signal (OTSi) which are part of an Optical Tributary Signal Group (OTSiG); and a management communication mechanism between the plurality of optical devices, wherein each of the plurality of optical devices are timing synchronized using the management communication mechanism and Precision Time Protocol (PTP) messaging. Each of the plurality of optical devices can include delay circuitry configured to deskew an associated OTSi with respect to other OTSi signals in the OTSiG.

METHODS OF TIME SYNCHRONISATION IN COMMUNICATIONS NETWORKS

BANDWIDTH ADJUSTING METHOD IN BOD TRANSACTION AND APPARATUS THEREOF

HIGH SPEED ETHERNET BASED ON SONET TECHNOLOGY

PROBLEM TO BE SOLVED: To provide a high-speed Ethernet(R) by collecting optical physical layer and LAN technologies. SOLUTION: A high-speed Ethernet using Thin SONET technologies as a physical layer carrier uses the large embedded base of SONET equipment to integrate WANs, MANs and LANs. The HS Ethernet(R) also takes advantage of current SONET functionality, such as framing, scrambling, integrity, etc. FEC fields are provided in the transport overhead (TOH) for achieving a high-level error correction. The HS Ethernet frame includes a length-type field generated at the PCS sublayer and an HEC field generated at the PMA layer. The frames are routed within a network using a source address, a destination address and a label. COPYRIGHT: (C)2010,JPO&INPIT ...

СИСТЕМА ПЕРЕАДРЕСАЦИИ УСЛУГ POTN И СПОСОБ ПЕРЕАДРЕСАЦИИ УСЛУГ, ВЫДАЧИ КОНФИГУРАЦИИ И ОБЕСПЕЧЕНИЯ ЗАЩИТЫ

Изобретение относится к области техники передачи POTN. Технический результат - обеспечение возможности переадресации услуг POTN и улучшение эксплуатационной эффективности и стабильности системы. Система содержит блок передачи данных Ethernet, коммутационный блок и линейный блок OTN. В системе экземпляры POVE создаются в качестве многоадресной рассылки в восходящем направлении, чтобы обеспечить мостовое соединение, пакетная служба использует многоадресную рассылку в качестве выходного порта канала услуги для исходящей связи, а услуга OTN использует многоадресную рассылку в качестве порта-источника взаимодействия с каналом ODUK. В направлении входящей связи создаются экземпляры POVE в качестве VLANDOMAIN, чтобы обеспечить мостовое соединение, услуга OTN назначает задний боковой сетевой порт, подключенный к каналу ODUK, с VLANDOMAIN, а услуга пакетной передачи использует VLANDOMAIN в качестве общего физического порта для классификации для доступа к пакетной услуге. Также в настоящем изобретении ...

СПОСОБ УПРАВЛЕНИЯ ПОТОКОМ ДАННЫХ СЕТИ ETHERNET В ПЕРЕДАЮЩЕЙ СЕТИ С СИНХРОННОЙ ЦИФРОВОЙ ИЕРАРХИЕЙ

... 1. Способ управления потоком данных сети Ethernet в передающей сети с синхронной цифровой иерархией, включающий создание на принимающей стороне буфера данных; направление соответствующего кадра управления потоком в зависимости от текущего объема данных в буфере данных. 2. Способ по п.1, в котором буфер данных - это синхронное запоминающее устройство с произвольным доступом SDRAM в виде программируемого логического массива на принимающей стороне. 3. Способ по любому из пп.1 или 2, в котором размер буфера задают в зависимости от расстояния передачи данных сети Ethernet по передающей сети SDH, задержками в устройствах SDH, количеством сетевых станций, задержками на сетевых элементах, компенсацией задержки в сети SDH, скоростью передачи портов сети Ethernet и внутренней задержкой процесса обработки в сети Ethernet. 4. Способ по п.1, в котором шаг направления соответствующего кадра управления потоком в зависимости от текущего объема данных в буфере данных включает задание верхнего и нижнего ...

СПОСОБЫ СИНХРОНИЗАЦИИ ВРЕМЕНИ В СЕТЯХ СВЯЗИ

... 1. Способ предоставления асимметрии задержки на пути для синхронизации времени между ведущими часами на первом клиентском узле и ведомыми часами на втором клиентском узле через серверную сеть связи, причем способ содержит:отображение первого сигнала протокола времени, переносящего данные протокола времени ведущих часов, на первом сигнале передачи для передачи через серверную сеть связи второму клиентскому узлу, определение прямой задержки отображения, образующейся в результате отображения первого сигнала протокола времени на первом сигнале передачи, и предоставление прямой задержки отображения элементу расчета асимметрии задержки на пути;отображение второго сигнала протокола времени, переносящего данные протокола времени ведомых часов, на втором сигнале передачи для передачи через серверную сеть связи первому клиентскому узлу, определение обратной задержки отображения, образующейся в результате отображения второго сигнала протокола времени на втором сигнале передачи, и предоставление обратной ...

Methods, systems and media for presenting contextually relevant information

Methods, systems, and media for presenting contextually relevant information are provided. In some implementations, the method comprises: receiving information associated with a user device of a user device from a plurality of data sources, wherein the user device comprises display; identifying, without user intervention, a relevant document based on the received information associated with the user device; determining that a new browser window or a new browser tab has been opened by a browser application being executed by the user device; and causing, without user intervention, the relevant document to be presented using the new browser window or new browser tab.

Transmission apparatus and line quality evaluating method

PROCEDURE AND DEVICE FOR THE TRANSPORT OF A CLIENT SIGNAL OVER AN OPTICAL TRANSPORTATION NET (OTN)

PROCEDURE AND SYSTEM FOR TRANSMISSION THAT ETHERNETRAHMEN IN A SDH NET

PROCEDURE AND DEVICE FOR THE CONVERSION OF PACKETS BETWEEN A NETWORK WITH HIGH RANGE AND A NETWORK WITH LOW RANGE

INTERFACE FOR SONET LINES OF DIFFERENT CAPACITIES

FLOW CONTROL METHOD OF DATA SERVICE TRANSMISSION IN SDH NETWORK

System and method for transporting channelized ethernet over sonet/sdh

ADAPTIVE RATE TRAFFIC RECOVERY MECHANISM FOR COMMUNICATION NETWORKS

A traffic recovery mechanism for communication networks uses a layer-1 adaptive rate protection scheme that compliments layer-3 restoration mechanisms. The protection scheme allocates less bandwidth to the traffic during a protection switch than during the normal operating conditions. This scheme allows the network to roll off more gracefully from the perspective of the applications routed through it. Rate adaptation is effected by a new interface between the data equipment and the transport network, which switches information transfer rate between two or more predetermined levels.

MULTI-RATE, MULTI-PROTOCOL, MULTI-PORT LINE INTERFACE FOR A MULTISERVICE SWITCHING PLATFORM

Methods and apparatus for enabling a line card to support multiple ports, multiple rates, and multiple protocols within an optical network system are disclosed. According to one aspect of the present invention, a line card that is suitable for incorporation into one of a multi-slot broadband digital cross-connect system or a multiservice provisioning platform includes a first port and a plurality of devices. The first port is arranged to be provisioned to accept an input signal which may be one of a signal of a first protocol and a signal of a second protocol. The plurality of devices being arranged to process the input signal to create an output signal which has a SONET payload. In one embodiment, the signal of the first protocol is an OC-n signal and the signal of the second protocol is a Gigabit Ethernet signal.

METHOD AND APPARATUS FOR TRANSLATING SDH/SONET FRAMES TO ETHERNET FRAMES

A translation engine is provided for efficiently translating SDH/SONET frames (101) to Ethernet frames (105) and vice versa. In accordance with one embodiment, a translation system includes a buffer (103) for holding SDH/SONET (101) and Ethernet frames (105). An Ethernet Media Access Control (MAC) address for a corresponding SDH/SONET TDM slot (103 E-103 F) further provided. A translation engine for translating SDH/SONET frames (101) into Ethernet frames (105) is in communication with an output interface. The SDH/SONET payload (101 A) is sent through a translation engine to translate the SDH / SONET payload (101 A) into an Ethernet payload (105 A). For translating from Ethernet to SDH / SONET, a reverse process occurs.

Resilient multiple service ring

A data transmission apparatus and method used in resilient multiple service ring, including a first working ring and a second working ring, for transmitting data between physical layer side device and network layer device or other upper layer facilities, such as carrier class node equipments, core and edge routers, switch devices, IP based network accessing equipments, line cards, and interfacing units used in high rates or low rates, e.g. Ethernet, Gigabit Ethernet, 10 Gigabit Ethernet, DVB (MPEG1, MPEG2, MPEG4 and MPEG7), ATM, Packet over SDH/SONET transmissions, other MSR, RPR for adapting IP and various tributaries (Ethernet), directly to SDH/SONET or simplified SDH/SONET, or Gigabit Ethernet, 10Gigabit Ethernet, or other physical layer devices.

PROCESS OF DISTRIBUTION OF TIME IN FIELDS OF THE TYPE SYNCHRONOUS ETHERNET AND SONET/SDH

Les modes de réalisation de la présente invention décrivent un procédé de distribution du temps entre un premier et un deuxième domaine de type SyncE, lesdits premier et deuxième domaines étant interconnectés par un troisième domaine de type SDH-SONET dans lequel un paramètre référentiel associé au temps est distribué, à travers les domaines de type SyncE, par l'intermédiaire d'au moins un champ TLV additionnel d'un message ESMC et un paramètre référentiel associée au temps correspondant est distribué, à travers le domaine de type SONET-SDH par l'intermédiaire d'au moins un champ TLV additionnel au niveau d'un message du protocole IEEE 1588 V2.

Method and device for bit block stream processing, rate matching and exchange

METHOD AND DEVICE FOR ADAPTING THE CLOCK-PULSE RATES OF DIGITAL SIGNALS

The invention relates to a method and a device for adapting the clock-pulse rates of a first digital signal (DS1) which is inserted into pulse frames to a second clock-pulse rate (T2). The first signal (DS1) is continuously written into an intermediate memory (PS1) wherein several bits or bit sequences are stored intermediately. The first signal (DS1) is read out of the intermediate memory (PS1) with a second clock-pulse rate.A specific number of selected bits or bit sequences (BA) is inserted into the pulse frame during read-out or removed therefrom, whereby a second signal (DS2) is obtained with the desired second clock-pulse rate (T2), the number of bits or bit sequences being modified and the pulse frame being essentially of the same duration.

METHOD FOR PROTECTION OF ETHERNET TRAFFIC IN OPTICAL RING NETWORKS

A method for protecting Ethernet data packets transmitted over SDH/SONET traffic in a ring-like optical network formed by a number of nodes, the method includes utilizing MS-SPRING/BLSR system for SDH/SONET traffic protection and, in case of one or more network failures that result in at least one isolated node in the network, the method comprises preventing initiation of a squelching algorithm of the MS-SPRING/BLSR system with respect to the SDH/SONET virtual containers carrying the data Ethernet packets, while ensuring that the standardized use of byte J1 is prevented with respect to the same SDH/SONET virtual containers carrying the Ethernet packets.

Method and system for optical network smart timer management via delay measurement between spans

A method and system for determining timers in an High Level Data Link Control (HDLC) Traffic Manager (HTM) state machine are disclosed. According to one aspect, the invention provides for determining a transit delay between two nodes by sending a first packet having a delay measurement byte to a second node that is on a link between the first node and the second node. The method also includes receiving a second packet with the delay measurement byte from the second node. The delay measurement byte sent by the second node is adjusted by the second node to indicate its receipt by the second node. A measured delay value is determined. The measured delay value is the delay between a time of sending the first packet to the second node and receiving the second packet from the second node. The measured delay value is determined by the hardware of the first node. Upon determining the measured delay value, timer values of the HTM state machine are set based on the measured delay value.

Transmission apparatus

A transmission apparatus interconnects a core network for making a communication by forming a connection and a metro network for m a communication by adding an address to data and by executing a forwarding process. The transmission apparatus includes a function of transmitting the data to the connection of the core network, to which an address of the metro network is made to correspond, and transfers the data to the connection of the core network, which is made to correspond to the address added to the data received from the metro network.

DATA PROCESSING DEVICE AND DATA PROCESSING METHOD

A data processing device includes: a FIFO buffer; a write circuit writing data in the buffer according to a write clock signal; a read circuit reading data from the buffer according to a read clock signal, a PLL circuit conducting a phase synchronization processing of the read clock signal based on a phase difference between the write and read clock signals and outputting a notification signal when the phase difference becomes within a predetermined range; a write control circuit controlling a timing when the write circuit starts writing based on the notification signal; a read control circuit comparing an address in which data is written and a reference address and controlling a timing when the read circuit starts reading based on a comparison result; and a correction circuit correcting the reference address with a value corresponding to the phase difference obtained when the notification signal has been output. 1. A data processing device comprising:a buffer from which data is read in an order that the data is written;a write circuit configured to write data in the buffer according to a write clock signal;a read circuit configured to read data from the buffer according to a read clock signal,a PLL circuit configured to conduct a phase synchronization processing of the read clock signal based on a phase difference between the write clock signal and the read clock signal, and to output a notification signal when the phase difference becomes within a predetermined range;a write control circuit configured to control a timing at which the write circuit starts writing based on the notification signal;a read control circuit configured to compare an address in which data is written by the write circuit and a reference address, and to control a timing at which the read circuit starts reading based on a comparison result; anda correction circuit configured to correct the reference address with a correction value corresponding to the phase difference that is obtained when ...

Service processing method and apparatus

Embodiments provide a service processing method and apparatus. According to the service processing method, a number of code blocks of a client service may be mapped to a FlexE subslot, and a FlexE subslot overhead is generated, so that the client service mapped to the FlexE subslot and the FlexE subslot overhead are sent through a physical channel, and a low-rate service is carried. Compared with carrying a low-rate service by directly using an entire FlexE slot, carrying the client service by using a number of FlexE subslots into which the FlexE slot is divided can improve bandwidth utilization.

METHOD, DEVICE, SYSTEM, AND STORAGE MEDIUM FOR IMPLEMENTING TIME SYNCHRONIZATION IN OPTICAL TRANSPORT NETWORK

A master device generates a time synchronization message, performs a first correction on a correction domain of the time synchronization message, and sends it including a first timestamp T to a slave device. The slave device performs a second correction on the correction domain of the time synchronization message, adds a second timestamp T, generates a delay request message, performs a third correction on the correction domain of the delay request message, and sends to the master device the delay request message including a third timestamp T. The master device performs a fourth correction on the correction domain of the delay request message, adds a fourth timestamp T, sends to the slave device a delay response message including the correction domain of the delay request message subjected to the fourth correction and the fourth timestamp T. The slave device performs time synchronization with the master device accordingly. 1. A method for implementing time synchronization in an Optical Transport Network (OTN) , comprising:{'b': '1', 'generating, by a master device, a time synchronization message, performing a first correction on a correction domain of the time synchronization message, and sending to a slave device the time synchronization message including a first timestamp T; and'}{'b': 3', '4', '4, 'receiving, by the master device, a delay request message which has been subjected to a third correction and includes a third timestamp T, performing a fourth correction on a correction domain of the delay request message, adding a fourth timestamp T to the delay request message, and sending to the slave device a delay response message including the fourth timestamp T and the correction domain of the delay request message which has been subjected to the fourth correction.'}21. The method according to claim 1 , wherein generating claim 1 , by the master device claim 1 , the time synchronization message claim 1 , performing the first correction on the correction domain of ...

HIGH-SPEED PLUGGABLE OPTICAL TRANSCEIVERS WITH ADVANCED FUNCTIONALITY

An optical transceiver configured to operate in a host device includes an electrical interface communicatively coupled to the host device to interface electrically with the host device, wherein the optical transceiver is compliant with a Multi-Source Agreement (MSA) which is supported by the host device; optical transceiver components communicatively coupled to the electrical interface, wherein the optical transceiver components are configured to optically interface signals with a second optical transceiver to form an optical link; and electronic dispersion compensation circuitry communicatively coupled to the optical transceiver components and configured to electronically compensate for optical fiber chromatic and/or polarization mode dispersion associated with the optical link, separate and independent from the host device. 1. An optical transceiver configured to operate in a host device , the optical transceiver comprising:an electrical interface communicatively coupled to the host device to interface electrically with the host device, wherein the optical transceiver is compliant with a Multi-Source Agreement (MSA) which is supported by the host device;optical transceiver components communicatively coupled to the electrical interface, wherein the optical transceiver components are configured to optically interface signals with a second optical transceiver to form an optical link; andelectronic dispersion compensation circuitry communicatively coupled to the optical transceiver components and configured to electronically compensate for optical fiber chromatic and/or polarization mode dispersion associated with the optical link, separate and independent from the host device.2. The optical transceiver of claim 1 , wherein the electronic dispersion compensation circuitry operates independent of the MSA and is transparent to the host device.3. The optical transceiver of claim 1 , further comprising:forward error correction circuitry communicatively coupled to the ...

DATA PROCESSING METHOD, RELATED DEVICE, AND SYSTEM FOR OPTICAL TRANSPORT NETWORK

Embodiments of the present invention provide a data processing method, related device, and system for an optical transport network. The data processing method for the optical transport network includes: encapsulating service data into an optical payload unit; mapping the optical payload unit to an optical channel data unit; mapping the optical channel data unit to a payload area of an optical burst transport unit; performing electrical-optical conversion on the optical burst transport unit to form an optical burst transport unit; carrying the optical burst transport unit onto an optical timeslot of an optical burst channel; and transmitting the optical burst channel to a line. Technical solutions provided by the present invention can effectively simplify a data processing process and reduce a data processing delay. 1. A service data processing method for an optical transport network , comprising:encapsulating service data into an optical payload unit;mapping the optical payload unit to an optical channel data unit;mapping the optical channel data unit to a payload area of an optical burst transport unit;performing electrical-optical conversion on the optical burst transport unit to form an optical burst transport unit;carrying the optical burst transport unit onto an optical timeslot of an optical burst channel; andtransmitting the optical burst channel to a line.2. The method according to claim 1 , whereinthe mapping the optical channel data unit to a payload area of an optical burst transport unit is specifically:mapping the optical channel data unit, whose signal time length is less than or equal to a frame period of the optical burst transport unit, to the payload area of the optical burst transport unit.3. The data processing method according to claim 1 , whereinthe number of electrical timeslots occupied by the optical burst transport unit is the same as the number of optical timeslots occupied by the optical burst channel, wherein the electrical timeslot and ...

Data transmission method and apparatus

This application provides data transmission methods and apparatuses. One method includes: processing, by a network device, a first optical data unit (ODU) to obtain a second ODU, wherein a bit rate of the second ODU is lower than a bit rate of the first ODU; and sending, by the network device, the second ODU.

Method and apparatus for adjusting bandwidth of transmission channel in flexible ethernet

This application discloses a method and an apparatus for adjusting a bandwidth of a transmission channel in flexible Ethernet. When the bandwidth of the transmission channel needs to be increased, bandwidths of all nodes are successively increased based on a direction reverse to a flow direction of service data, and when the bandwidth of the transmission channel needs to be decreased, bandwidths of all nodes are successively decreased based on the flow direction of the service data. In this way, a probability of a loss of service data transmitted from upstream to downstream is reduced in a process of adjusting the bandwidth of the transmission channel, and this improves reliability of service data transmission.

Client signal transmission method, device and system and computer-readable storage medium

Provided are a client signal transmission method, apparatus and system and a computer-readable storage medium. The method includes mapping a client signal into a predetermined container corresponding to the client signal; mapping the predetermined container into the corresponding number of first code blocks in a payload area of an optical transport network frame and inserting special idle code blocks during the mapping for rate compensation, where the first code blocks are obtained by dividing the payload area of the optical transport network frame; and sending the optical transport network frame carrying the predetermined container and configuration information of the predetermined container.

Data Transmission Method, Data Receiving Method, and Data Sending and Receiving System

A method includes: generating indication information, where the indication information is used to indicate a resource allocation table corresponding to a first data unit in the plurality of data units; sending the indication information in a timeslot previous to a timeslot used to send the first data unit; and sending the plurality of data units, where a resource allocation table corresponding to each data unit is selected from a plurality of resource allocation tables in a cyclic manner, and a cyclically initial resource allocation table is the resource allocation table indicated by the indication information. 110.-. (canceled)11. A method , comprising:receiving indication information, wherein the indication information indicates a first resource allocation table corresponding to a first data unit in a plurality of data units; andconsecutively receiving the plurality of data units, wherein for each data unit of the plurality of data units a respective resource allocation table corresponding to the respective data unit is selected from a plurality of resource allocation tables in a cyclic manner, and an initially selected resource allocation table is the first resource allocation table indicated by the indication information.12. The method according to claim ii , wherein before receiving the indication information , the method further comprises:setting the plurality of resource allocation tables, wherein the plurality of resource allocation tables indicate timeslot allocation on a same physical link.13. The method according to claim ii , wherein for each data unit of the plurality of data units the respective resource allocation table corresponding to the respective data unit being selected from the plurality of resource allocation tables in the cyclic manner comprises:the first resource allocation table being selected to use in a first plurality of consecutive timeslots, and a second resource allocation table of the plurality of resource allocation tables being ...

Service Transmission Method And First Transmission Device

A service transmission method and a transmission device are disclosed. The method includes: mapping n client signals with a rate of t to ms/t load subareas of m lanes of flexible optical transport network (FlexO) frames, where a payload area of each of the m lanes of FlexO frames is divided into s/t load subareas, and each lane is transmitted using a FlexO lane with a transmission rate of s; configuring a FlexO type, timeslot overhead, and signal mapping information for each lane; and transmitting the m lanes of FlexO frames to a second transmission device by using m FlexO lanes with the transmission rate of s. The second transmission device is configured to parse, according to the FlexO type, the timeslot overhead, and the signal mapping information, the client signals carried in the ms/t load subareas.

Flexible ethernet and multi link gearbox mapping procedure to optical transport network

A flexible mapping method to map a Physical Coding Sublayer (PCS) structure from Flexible Ethernet and/or Multi Link Gearbox (MLG) to Optical Transport Network (OTN), includes receiving one or more Virtual Lanes; and mapping each of the one or more Virtual Lanes into a Tributary Slot, wherein a rate and number of the Tributary Slot(s) in OTN is set based on a rate and number of the one or more Virtual Lanes. A transport system and a flexible de-mapping method are also described. The systems and methods map the generalized MLG-style group of lanes (virtual PHYs/PMDs) into an OPUflex Tributary Slot (TS) structure, keeping PCS structures intact, and creates a single ODUflex container with a matching rate of FlexE for end-to-end flow.

METHOD FOR MAPPING PACKET SERVICE ONTO OPTICAL TRANSPORT NETWORK, AND OTN DEVICE

A method for mapping a packet service onto an optical transport network is disclosed. An embodiment of the method includes: receiving a packet service message from an access side, identifying the message by using a first board number of a first line board in which a first egress is located and a first port number of the first egress; sending the message to the first line board corresponding to the first board number; and encapsulating the message that is sent to the first line board, mapping the encapsulated message onto a first optical channel data unit ODU corresponding to the first port number, and sending the first ODU by using the first egress. Cross-connect scheduling of any bandwidth in any direction is implemented based on a packet service, and packet services on different tributary boards share different ODU timeslots or a same ODU timeslot on a same line board. 1. A method for mapping a packet service onto an optical transport network (OTN) , comprising:receiving a packet service message from an access side, and identifying the packet service message by using a first board number of a first line board in which a first egress is located and a first port number of the first egress;sending the packet service message to the first line board corresponding to the first board number; andencapsulating the packet service message that is sent to the first line board, mapping an encapsulated packet service message onto a first optical channel data unit (ODU) corresponding to the first port number, and sending the first ODU by using the first egress.2. The method according to claim 1 , wherein the first port number is in a one-to-one correspondence with a number of the first ODU.3. The method according to claim 1 , wherein the first ODU comprises at least one first sub-port number of the first egress.4. The method according to claim 3 , wherein the method further comprises:receiving the packet service message from a network side, demapping the packet service message ...

Transparent deployment of packet services using optical transport network

A method is disclosed for use by a network element coupled with an optical transport network. The method comprises calculating an optical path from a first packet-terminated optical interface of the network element to a second packet-terminated optical interface of a destination network element coupled with the optical transport network, and signaling the optical transport network to create the optical path. The method further comprises creating an Ethernet interface corresponding to the first packet-terminated optical interface, and adding the Ethernet interface to an Ethernet bundle interface. The method further comprises communicating across the optical path using addressing of the Ethernet bundle interface.

Service Sending Method and Apparatus, Service Receiving Method and Apparatus, and Network System

The present disclosure relates to a service sending method and apparatus, and a service receiving method and apparatus. One example service sending method includes obtaining, by a network device, a first data stream and a second data stream, and inserting the first data stream into the second data stream to generate a third data stream. The third data stream includes a first information block and a second information block, the first information block is used to carry the first data stream, the second information block is used to carry a first data stream distribution indication map, the first data stream distribution indication map is used to indicate a location of the first information block, and the second information block is identified by using a preset map block type. 1. A service sending method , wherein the method comprises:obtaining, by a network device, at least two data streams, wherein the at least two data streams comprise a first data stream and a second data stream; the third data stream comprises a first information block and a second information block, and the first information block and the second information block are generated from the second data stream; and', 'the first information block is used to carry the first data stream, the second information block is used to carry a first data stream distribution indication map, the first data stream distribution indication map is used to indicate a location of the first information block, and the second information block is identified by using a preset map block type; and, 'inserting the first data stream into the second data stream to generate a third data stream, whereinsending the third data stream.2. The method according to claim 1 , wherein the method further comprises:obtaining the second data stream;identifying at least two idle blocks in the second data stream; andgenerating the first information block and the second information block at locations of the at least two idle blocks.3. The method ...

Data Transmission Methods, Apparatuses, Devices, and System

A data transmission apparatus, a data transmission system, and a data transmission method for implementing flexible Ethernet (FlexE) data transmission in an upstream/downstream asymmetric manner includes obtaining a plurality of first data packets that come from different Media Access Control (MAC) clients, where the different MAC clients receive respective second data packets over respective second FlexE virtual links; and sending the plurality of first data packets to a transmit end of the second data packets over a first FlexE virtual link that corresponds to the different MAC clients.

Data forwarding method and device

This application discloses a data forwarding method and device. The method includes: obtaining a first data unit sequence stream by using a first logical ingress port, where the first data unit sequence stream includes at least one first data unit; determining, according to a preconfigured mapping relationship between at least one logical ingress port and at least one logical egress port, a first logical egress port corresponding to the first logical ingress port, where the at least one logical ingress port includes the first logical ingress port; adjusting a quantity of idle units in the first data unit sequence stream, so that a rate of an adjusted first data unit sequence stream matches a rate of the first logical egress port; and sending the adjusted first data unit sequence stream by using the first logical egress port.

Method And Apparatus For Processing Bit Block Stream, Method And Apparatus For Rate Matching Of Bit Block Stream, And Method And Apparatus For Switching Bit Block Stream

Embodiments of the present invention provide a method for processing a bit block stream, including: obtaining a first to-be-processed bit block stream; and mapping the first to-be-processed bit block stream into at least two slot hit block streams, the at least two slot bit block streams include a first slot bit block stream and a second slot bit block stream, the first slot bit block stream includes a first boundary bit block and a second boundary bit block, the second slot bit block stream includes a third boundary bit block and a fourth boundary bit block, N first hit blocks exist between the first boundary bit block and the second boundary bit block, N first bit blocks exist between the third boundary bit block and the fourth boundary bit block, the first bit block is a non-idle bit block.

Method, Device and System for Synchronization Message Transmission

A method, device and system for synchronization message transmission are provided. The method may include that: a transmitting end selects at least one Ethernet Physical Layer Link (PHY) for synchronization message transmission from a Flexible Ethernet (FlexE) group (S201); after encapsulating the synchronization message according to a preset encapsulation strategy, the transmitting end inserts the synchronization message into a synchronization message channel in overhead of the selected Ethernet PHY (S202); and the transmitting end transmits the synchronization message through the selected Ethernet PHY (S203).

Method and device for transparently transmitting service frequency

This application provides a method and device for transparently transmitting a service frequency, where the method includes: determining, by a first device, first service frequency information Xn, where the first service frequency information Xn is used to indicate an amount of n-bit first service data that is sent by the first device within first statistical duration, and a sending frequency of the first device is used as a reference for the first statistical duration; and encapsulating, by the first device, the first service frequency information Xn into a first S/T bit code block, inserting the first S/T bit code block into a data stream of the first service data, and sending the data stream of the first service data to a second device.

Systems and methods for transporting constant bit rate client signals over a packet transport network

A method for transporting Ethernet frame packets assembled from a constant bit rate (CBR) client stream from an ingress network node to an egress network node, each Ethernet frame packet including a payload region having a number of bytes of CBR client data from the CBR client stream determined by a client rate value of the CBR client stream. The method including synchronizing a reference clock signal and a ToD in the ingress network node to a packet-based time distribution mechanism, independently synchronizing a reference clock signal and a ToD in the egress network node to the packet-based time distribution mechanism, for an Ethernet frame packet assembling a presentation time packet including a sequence number and a presentation ToD for the Ethernet frame packet, and transmitting the Ethernet frame packets and the presentation time packet to the egress network node over the packet transport network.

SYSTEMS AND METHODS FOR ENHANCED AUTONEGOTIATION

An improved autonegotiation approach includes determining that a negotiated rate between a first network device and a second network device exceeds data transfer capacity over a network path downstream of the second network device. In response, a configuration message is generated and transmitted to the first network device. When received by the first network device, the configuration message causes the first network device to limit data transfer between the first network device and the second network device to no more than the downstream data transfer capacity. 1. A method of establishing a data transfer rate between network endpoints , the method comprising:initiating a connection between a first endpoint of a first network and a second endpoint of a second network, wherein the connection between the endpoint of the first network and the endpoint of the second network can transfer data at up to a first transfer rate;determining the first transfer rate is greater than a second transfer rate for transferring data over the second network; andtransmitting, in response to determining the first transfer rate is greater than the second transfer rate, a configuration message to a network device corresponding to the first endpoint, wherein the configuration message causes the network device to limit transfer of data over the connection from the first endpoint to the second endpoint to no greater than the second transfer rate, wherein the second network includes two or more third endpoints connected to a respective sub-interface of the second endpoint and enabling a respective transfer rate therebetween, and the second transfer rate is the respective transfer rate or a sum of the respective transfer rates between the second endpoint and the two or more third endpoints.2. The method of claim 1 , wherein the first network is an Ethernet network and the second network is a synchronous optical networking (SONET) network.4. The method of claim 1 , wherein the step of determining ...

Method, apparatus, and system for processing data on otn optical transport network

A method for processing data on an OTN optical transport network is disclosed in embodiments of the present invention, including: receiving and buffering, through an ILK interface, an Ethernet data frame sent by an Ethernet board; encapsulating the Ethernet data frame into a Generic Framing Procedure GFP data frame; and mapping the GFP data frame to a virtual container of the OTN to form an OTN data frame, and transporting the OTN data frame to a corresponding transparent transmission board through a cross-connect board. An apparatus and a system for processing data on an OTN optical transport network are further disclosed in the embodiments of the present invention.

Service Data Transmission Method and Apparatus

A service data transmission method includes determining, by a first device, a switching request, and sending, by the first device, the switching request to a second device, where the first device is connected to the second device using a flexible Ethernet (FlexE) group including at least one FlexE connection instance (FlexE Instance). The switching request includes first slot configuration information and second slot configuration information, the switching request is used to request to switch a slot configuration of a FlexE Instance from a configuration indicated by the first slot configuration information to a configuration indicated by the second slot configuration information, and a slot division quantity indicated by the first slot configuration information is different from a slot division quantity indicated by the second slot configuration information.

Method for obtaining target transmission route, related device, and system

Embodiments of this application provide a method for obtaining a target transmission route, a related device, and a system. The method is applied to a flexible Ethernet FlexE networking network and includes: receiving a first message that is sent by a second node for requesting to query for a transmission route of a first FlexE client; and sending a second message to the second node, where a route information entry in the second message includes route information of the FlexE client on each node. Ingress information and egress information that are of a FlexE client on a route node are recorded as a transmission route of each hop. A segment-to-segment transmission route in the FlexE network can be dynamically found in real time, a planned and deployed transmission route is compared with an actually found route, to evaluate a network running status.

METHOD AND APPARATUS FOR TRANSMITTING SERVICE FLOW BASED ON FLEXIBLE ETHERNET FLEXE

Example embodiments of this application provide a method and an apparatus for transmitting a service flow based on FlexE. The method includes: sending, by a first network device, a first FlexE overhead frame to a second network device, where the first network device and the second network device transmit a service flow using a first FlexE group, and the first FlexE overhead frame includes FlexE group adjustment identification information and PHY information of a physical layer (PHY) included in a second FlexE group; receiving, by the first network device, a second FlexE overhead frame sent by the second network device, where the second FlexE overhead frame includes FlexE group adjustment acknowledgment identification information; adjusting, by the first network device, the first FlexE group to the second FlexE group; and sending, by the first network device, the service flow to the second network device based on the second FlexE group, to dynamically adjust a FlexE group. 1. A method performed by a first network device for transmitting a service flow based on flexible Ethernet (FlexE) comprising the first network device and a second network device , wherein the first network device and the second network device transmit the service flow by using a first FlexE group , and the method comprises:sending a first FlexE overhead frame to the second network device, wherein the first FlexE overhead frame comprises FlexE group adjustment identification information and PHY information of a physical layer (PHY) in a second FlexE group, the FlexE group adjustment identification information is indicative of that the first network device requests the second network device to adjust the first FlexE group to the second FlexE group, and the first FlexE group is different from the second FlexE group;receiving a second FlexE overhead frame sent by the second network device, wherein the second FlexE overhead frame comprises FlexE group adjustment acknowledgment identification ...

TRANSMISSION APPARATUS, RECEPTION APPARATUS, AND RECEPTION METHOD

A transmission apparatus includes: a memory; a processor coupled to the memory, wherein the processor: generates a frame including an input packet; performs, on the frame, a coding process regarding an error correction and depending on whether the packet includes significant data; and transmits the frame subjected to the coding process. 1. A transmission apparatus comprising:a memory;a processor coupled to the memory,wherein the processor:generates a frame including an input packet;performs, on the frame, a coding process regarding an error correction and depending on whether the packet includes significant data; andtransmits the frame subjected to the coding process.2. The transmission apparatus according to claim 1 , wherein the processor stores information indicating the coding process performed on the frame in a header of the frame.3. The transmission apparatus according to claim 2 , wherein the processor stores information indicating the coding process in each of a plurality of areas of the header.4. The transmission apparatus according to claim 1 , wherein the processor:in a case where the packet includes significant data, performs, on the frame, a first coding process which adds a redundant bit calculated in the error correction to the frame; andin a case where the packet includes no significant data, performs a second coding process, which consumes less power than the first coding process, on the frame.5. The transmission apparatus according to claim 4 , wherein the second coding process is a process of adding a specific redundant bit to the frame without performing the error correction.6. The transmission apparatus according to claim 4 , wherein in a case where the packet is not input claim 4 , the processor generates a frame including an idle packet claim 4 , and performs the second coding process on the frame.7. The transmission apparatus according to claim 6 , whereinthe packet is a packet that is input irregularly, andthe processor generates the frame ...

Method and Apparatus for Sending Service, Method and Apparatus for Receiving Service, and Network System

Embodiments of the present invention disclose a method and an apparatus for sending a service, a method and an apparatus for receiving a service, and a network system. The method for sending a service includes: obtaining, by a transmit end device, an original data stream; inserting a quantity mark k into the original data stream, to generate a first data stream, where the quantity mark k is a quantity of first data units in the original data stream, and k is greater than or equal to 0; and sending the first data stream. 1. A method , comprising:obtaining, by a transmit end device, an original data stream;inserting, by the transmit end device, a quantity mark k into the original data stream, to generate a first data stream, wherein the quantity mark k identifies a quantity of first data units in the original data stream, and k is greater than or equal to 0;increasing or decreasing, by the transmit end device, a quantity of idle units in the first data stream; andsending, by the transmit end device, the first data stream.2. The method according to claim 1 , wherein inserting the quantity mark k into the original data stream comprises:obtaining a first segment of data stream from the original data stream;determining a quantity of first data units in the first segment of data stream; andinserting the quantity mark k at a first location in the first segment of data stream, wherein a value of the quantity mark k is equal to the quantity of first data units in the first segment of data stream, and the first location is a location of a data unit that is usable to carry the quantity mark k.3. The method according to claim 2 , wherein the first data units in the first segment of data stream comprise all data units in the first segment of data stream claim 2 , and k is an integer greater than 0.4. The method according to claim 2 , wherein the first data units in the first segment of data stream comprise an idle unit in the first segment of data stream claim 2 , and k is an ...

Communication system, node and signal path control method in communication system

A communication system includes: a plurality of active paths on which a plurality of signals set with priorities are transmitted by a plurality of time-division slots; a backup path shared by the plurality of active paths; and a controller configured to control, based on the priorities, allocation of any of the plurality of signals which are allocated to any of the plurality of time-division slots and transmitted on any of the plurality of active paths, to a plurality of time-division slots on the backup path.

METHOD AND APPARATUS FOR CONTROLLING DELAY IN A DEVICE FOR TRANSPORTING PACKETS OVER OPTICAL TRANSPORT NETWORK

A method and apparatus for controlling delay over a data path in a device for transporting Ethernet packets over an optical transport network. The device is configured to receive an incoming clock signal having a first frequency and an incoming data signal and to output an outgoing clock signal having a second frequency and an outgoing data signal. One or more delays over the data path in the device are measured in a predetermined measurement period. A phase adjustment amount is determined based on the one or more measured delays over the data path in the predetermined measurement period, and based on the determining phase adjustment amount, a phase of the outgoing clock signal is adjusted by a phase locked loop in such a way that the delay over the data path in the device is substantially equal to a fixed delay value. 123-. (canceled)24. A method of controlling a delay over a fixed deterministic data path in a device for transporting packets over an optical network , the method comprising adjusting a phase of an outgoing clock signal based on a phase adjustment amount that is determined using one or more measured delays over the data path , such that the data path in the device is substantially equal to a fixed delay value.25. The method according to claim 24 , wherein adjusting the phase of the outgoing clock signal comprises adjusting a phase locked loop by either decreasing or increasing a phase of an incoming signal.26. The method according to claim 24 , wherein the fixed delay value comprises an average delay over the data path in the device claim 24 , or a delay mid-point value between a minimum measured delay and a maximum measured delay over the data path in the device for a predetermined measurement period.27. The method according to claim 24 , wherein adjusting the phase of the outgoing clock signal comprises steering the phase of the outgoing clock signal based on stuff indication information.28. The method according to claim 24 , wherein the device is ...

Time transfer systems and methods over Flexible Ethernet

Time transfer systems and methods in Flexible Ethernet (FlexE) include, in a node supporting Flexible Ethernet (FlexE), communicating a FlexE group with an adjacent node via a FlexE shim; providing a synchronization message channel to the adjacent node via overhead of the FlexE shim for the FlexE group; and exchanging synchronization messages via the synchronization message channel with the adjacent node. The synchronization messages can be Precision Time Protocol (PTP) messages. A timestamp point for a synchronization message can be a start of a FlexE frame or multi-frame boundary.

METHODS AND APPARATUS FOR CONFIGURING A FLEX ETHERNET NODE

Methods and apparatus are provided for processing communications. In one aspect, a method of processing Flex Ethernet (FlexE) data comprises receiving a plurality of data blocks over at least one physical layer connection, each data block corresponding to one of at least one FlexE client flow, wherein data blocks corresponding to a first client flow of the at least one FlexE client flow have a destination over at least one further physical layer connection and contain Ethernet packets and Operation, Administration & Management (OAM) blocks, forming at least one further Ethernet packet containing at least one of the OAM blocks, the at least one further Ethernet packet specifying the destination, and providing the at least one further Ethernet packet to a switching node for forwarding to the destination. 1. A method of processing Flex Ethernet (FlexE) data , the method comprising:receiving a plurality of data blocks over at least one physical layer connection, each data block corresponding to one of at least one FlexE client flow, wherein data blocks corresponding to a first client flow of the at least one FlexE client flow have a destination over at least one further physical layer connection and contain Ethernet packets and Operation, Administration & Management (OAM) blocks;forming at least one further Ethernet packet containing at least one of the OAM blocks, the at least one further Ethernet packet specifying the destination; andproviding the at least one further Ethernet packet to a switching node for forwarding to the destination.2. The method of claim 1 , further comprising:forming the Ethernet packets from the data blocks corresponding to the first client flow; andproviding the Ethernet packets to the switching node.3. The method of claim 1 , wherein the at least one further Ethernet packet contains at least one of the data blocks corresponding to the first client flow.4. The method of claim 3 , further comprising:forming a plurality of additional Ethernet ...

数据传输方法、装置、设备及系统

本发明涉及灵活以太网技术，公开了两种数据传输方法、装置及设备，以及一种数据传输系统。其中，一种数据传输方法包括：获取来源于不同媒质访问控制MAC客户端的多个第一数据报文，所述不同MAC客户端通过各自对应的灵活以太网FlexE第二虚拟链路接收各自对应的第二数据报文；通过所述不同MAC客户端共同对应的FlexE第一虚拟链路，向所述第二数据报文的发送端发送所述多个第一数据报文。采用本发明提供的数据传输方法，可实现上下行非对称方式的FlexE数据传输，因而节省上行链路的带宽资源，实现FlexE上行数据传输合理占用带宽资源，进而可达到节省物理媒体成本的效果。

Interface transmission method, device and equipment

本申请提供了一种接口传输方法、装置及设备。所述方法包括：获取字节块流，字节块流中的字节块为预定字节长度；将字节块流映射到对应的时隙中，每个时隙对应一个字节块；对映射到时隙的字节块流进行分发；根据为物理接口配置的接口类型，对分发后的字节块流进行处理；发送处理后的字节块流。本申请实施例中基于字节块分发机制进行数据传输，实现了对不同接口类型的支持，并解耦了业务适配与物理层的耦合关系，使得传输接口类型的演进扩展不会影响到业务适配流程，进而简化了传输体系。

Service data transmission method and device

本申请提供一种业务数据传输方法及装置，该方法包括：第一设备确定切换请求，第一设备向第二设备发送所述切换请求，所述第一设备和所述第二设备通过包含至少一个所述灵活以太网连接实例的灵活以太网组连接。切换请求包括：第一时隙配置信息和第二时隙配置信息，所述切换请求用于请求将灵活以太网连接实例的时隙配置由所述第一时隙配置信息指示的配置切换到所述第二时隙配置信息指示的配置，其中，所述第一时隙配置信息指示的时隙划分数量与所述第二时隙配置信息指示的时隙划分数量不同。实现了第一设备和第二设备之间可以根据实际业务需求灵活协商时隙配置，及时变更时隙划分数量，从而可以更好地满足业务需求，提升用户体验。

Ethernet converting apparatus of epon and method thereof

본 발명은 하향 및 상향 EPON프레임의 특정 패킷 데이타를 선택적으로 이더넷 프레임으로 변환할 수 있는 EPON (Ethernet Passive Optical Network)의 이더넷 변환장치 및 방법에 관한 것으로, 백본 망에 설치된 하나의 OLT(Optical Line Terminator); 가입자 밀집 지역에 설치되는 복수의 ONU(Optical Network Unit); 상기 OLT와 각 ONU사이에서 광 케이블을 통해 전송되는 EPON 프레임을 분배하는 수동형 광 분배기; 및 상기 광 케이블을 통해 OLT와 각 ONU사이에 전송되는 하향 및 상향 EPON프레임을 판별하여 특정 패킷 데이타를 선택적으로 이더넷 프레임으로 변환하는 이더넷 변환장치;를 포함한다.

Data transmission method and data interface and equipment of high speed Ethernet to optical transmission network

本发明提供了一种高速以太网到光传输网的数据传输方法及数据接口和设备。其基本思想是通过流量控制、速率匹配、映射封装来实现高速以太网业务到光传输网络的无缝传输；基于现有网络结构，可以采用媒体接入控制子层、物理编码子层、光传输网接入子层来分别完成。采用本发明方案只需经过一次数据的映射封装，即可在物理层直接实现高速以太网业务透明地到光传输网络传输，由于映射时速率匹配，因此能够以完全符合标准的形式进行，保证了业务传输的效率和质量。

Link group configuration method and device

本申请实施例提供一种链路组配置方法和装置。链路组配置方法包括：第一网络设备获取第一网络设备的M个物理端口各自所属的候选组，第一网络设备从第二网络设备获取第二网络设备的M个物理端口各自所属的候选组，根据第一网络设备的M个物理端口各自所属的候选组以及第二网络设备的M个物理端口各自所属的候选组，从M条物理链路中选择N条物理链路作为第一网络设备与第二网络设备之间的链路组。本申请实施例通过根据各物理端口接收信息的快慢为各物理端口分配候选组，根据物理端口各自所属的候选组配置链路组，提高了链路组配置速度，保证了链路组的可靠运行。

Method and Apparatus for Permitting Loopback in Junction of Ethernet and SDH/SONET

본 발명은 라인카드로부터 전송된 채널 데이터를 목적지 포트로 스위칭하는 TDM 크로스 커넥터, 상기 TDM 크로스 커넥터로부터 전송된 채널 데이터에서 이더넷 패킷을 추출하거나 삽입하는 EOS부, 상기 EOS부로부터 전송된 이더넷 패킷의 목적지 주소를 판단하여 전송하는 루프백부, 상기 루프백부로부터 전송된 이더넷 패킷을 인터넷망으로 전송하는 이더넷 스위치로 구성된 것으로서, 공유 가상 채널을 사용할때 발생하는 루프백 문제를 제거함으로서 NG-SDH/SONET 장비를 간단하게 개발할 수 있다. The present invention provides a TDM cross connector for switching channel data transmitted from a line card to a destination port, an EOS unit for extracting or inserting an Ethernet packet from channel data transmitted from the TDM cross connector, and a destination of an Ethernet packet transmitted from the EOS unit. It consists of a loopback unit for determining and transmitting an address, and an Ethernet switch for transmitting the Ethernet packet transmitted from the loopback unit to the Internet network, thereby simplifying the NG-SDH / SONET device by eliminating the loopback problem that occurs when using a shared virtual channel. Can be developed. SDH/SONET, 루프백 SDH / SONET, Loopback

Method, device and system for processing Ethernet data in optical network

本申请实施例涉及光通信领域，尤其涉及光传送网络中的数据处理技术。在一种数据处理的方法中，一个光网络设备从一个路径的数据帧中提取出以太数据，并将所述以太数据转换为另一格式后，放置到另一路径的数据帧中，其中，所述光网络设备为所述路径的目的设备且为所述另一路径的源设备；此外，所述光网络设备还从所述路径的数据帧中提出开销信息，并将所述开销信息插入所述另一路径的数据帧中。本申请提供的数据处理方法可以实现不同类型的以太接口的互通。此外，通过跨路径的开销处理，该方法降低了路径管理复杂度。

Method of transmitting a service and a first transmitting device

FIELD: communication equipment. SUBSTANCE: invention relates to a communication technology using an optical transport network and is intended for flexible transmission of a service. Embodiment of invention discloses, in particular, a method of transmitting a service, which includes steps of: displaying n client signals at a rate of t on ms/t sub-regions of load m of FlexO frames, wherein payload area of each of m lines of FlexO frames is divided into s/t sub-regions of load and each line of FlexO frame is transmitted using FlexO line with speed s; configuring FlexO type information, time interval service information and signal display information for each frame FlexO line and transmitting m FlexO lines to the second transmitting device using m FlexO lines with a transmission speed s, wherein the second transmitting device is configured to perform parsing in accordance with FlexO type information, time interval service signaling information and signal display information, client signals transmitted in the ms/t load sub-regions. EFFECT: disclosed is a service transmission method and a first transmitting device. 19 cl, 18 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 691 748 C1 (51) МПК H04J 14/02 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК H04J 14/02 (2019.02) (21)(22) Заявка: 2018145955, 27.05.2016 (24) Дата начала отсчета срока действия патента: (73) Патентообладатель(и): ХУАВЕЙ ТЕКНОЛОДЖИЗ КО., ЛТД. (CN) Дата регистрации: 18.06.2019 (56) Список документов, цитированных в отчете о поиске: CN 101827285 A, 08.09.2010. CN 101217334 A, 09.07.2008. US 2010046951 A1, 25.02.2010 . WO 2015/032259 A1, 12.03.2015 . RU 2439708 C2, 10.01.2012. (45) Опубликовано: 18.06.2019 Бюл. № 17 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 24.12.2018 (86) Заявка PCT: CN 2016/083757 (27.05.2016) 2 6 9 1 7 4 8 Приоритет(ы): (22) Дата подачи заявки: 27.05.2016 R U 27.05.2016 (72) Автор(ы): СУ Вэй (CN), У Цюю (CN) ...

Method and device for realizing network connection service establishment

本发明公开一种实现网络连接服务建立的方法，用于自动交换光网络中，包括：发起源端用户侧到宿端用户侧的网络连接服务建立请求；该网络连接服务的网络入口节点与该网络连接服务的网络出口节点通过控制平面的消息交互协商确定双方节点之间用于支撑该网络连接服务的网络连接以及网络连接服务中从用户侧到网络侧的协议适配栈；网络连接服务的网络入口节点和出口节点建立所述支撑网络连接服务的网络连接和适配栈配置完成网络连接服务建立。另外，本发明还公开一种相应的装置。本发明不需手工配置，可以降低连接建立的时延，并有利于在多服务传送网络条件下进行多服务的传送。

Methods for time synchronisation in communication networks

FIELD: radio engineering, communication. SUBSTANCE: method comprises: mapping a first time protocol signal (TPS), carrying master clock time protocol data, to a first transmission signal, determining direct mapping delay d mf , and providing d mf to an element 12 for calculating path delay asymmetry; mapping a second TPS, carrying master clock time protocol data, to the first transmission signal, determining reverse mapping delay d mr , and providing d mr to an element 14 for calculating path delay asymmetry; applying FEC to the first transmission signal, determining direct FEC delay d fecf , and providing d fecf to an element 16 for calculating path delay asymmetry; applying FEC to a second transmission signal, determining reverse FEC delay d fecr , and providing d fecr to an element 18 for calculating path delay asymmetry; calculating path delay asymmetry depending on d mf , d mr , d fecf and d fecr 20; and providing path delay asymmetry to a time protocol client at a second client node 22. EFFECT: providing path delay asymmetry for synchronising time between master clocks at a first client node and slave clocks at a second client node through a server-based communication network, performing synchronisation between said clocks. 20 cl, 14 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (51) МПК H04J 3/06 (11) (13) 2 546 198 C1 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ 2013142096/07, 27.04.2011 (24) Дата начала отсчета срока действия патента: 27.04.2011 (72) Автор(ы): РУФФИНИ Стефано (IT), БОТТАРИ Джулио (IT) 15.02.2011 EP 11154544.8 (45) Опубликовано: 10.04.2015 Бюл. № 10 2 5 4 6 1 9 8 (56) Список документов, цитированных в отчете о поиске: CN101043277 A, 26.09.2007. RU R U (73) Патентообладатель(и): ТЕЛЕФОНАКТИЕБОЛАГЕТ Л М ЭРИКССОН (ПАБЛ) (SE) Приоритет(ы): (30) Конвенционный приоритет: 2356080 A1, 20.05.2009. RU 2133489 C1, 20.07.1999. CN 1852049 A, 25.10.2006. GB 1424857 A, 11.02.1976 (85) Дата начала ...

ADAPTIVE FLOW TRAFFIC RECOVERY MECHANISM FOR COMMUNICATION NETWORKS

Un mécanisme de récupération de trafic pour des réseaux de communication utilisant une méthode de protection à débit adaptatif sur la couche-1 en complément de mécanismes de rétablissement sur la couche-3. La méthode de protection alloue moins de largeur de bande au trafic durant une commutation de protection que durant des conditions d'opération normal. Cette méthode permet au réseau de réagir plus en douceur du point de vue des applications routées à travers lui. L'adaptation du débit se fait par une nouvelle interface entre l'équipement de données et le réseau de transport, qui commute le débit de transfert d'informations entre deux ou plus de niveaux prédéterminés. A traffic recovery mechanism for communication networks using an adaptive rate protection method on Layer-1 in addition to recovery mechanisms on Layer-3. The protection method allocates less bandwidth to traffic during a protection switch than during normal operating conditions. This method allows the network to react more smoothly from the point of view of the applications routed through it. The rate adaptation is done by a new interface between the data equipment and the transport network, which switches the information transfer rate between two or more predetermined levels.

Data transmission method, device and system

本申请公开了一种数据传输方法、装置及系统，属于通信技术领域。该数据传输方法包括：第一节点获取m(m≥2)个第一FlexE客户，再将该m个第一FlexE客户映射至一个第二FlexE客户，之后将该第二FlexE客户的数据传输至第二节点，其中，每个第一FlexE客户的数据占用第二FlexE客户的时隙是固定的，第二节点与第一节点不同。本申请解决了相关技术中FlexE客户的粒度较细，对节点处理数据的性能要求较高的问题，通过将多个第一FlexE客户映射至一个第二FlexE客户，降低了对节点处理数据的性能要求，适用于FlexE环网的数据传输和组建的层次化网络的数据传输。

Adaptive rate traffic recovery mechanism for communication networks

A traffic recovery mechanism for communication networks uses a layer-1 adaptive rate protection scheme that compliments layer-3 restoration mechanisms. The protection scheme allocates less bandwidth to the traffic during a protection switch than during the normal operating conditions. This scheme allows the network to roll off more gracefully from the perspective of the applications routed through it. Rate adaptation is effected by a new interface between the data equipment and the transport network, which switches information transfer rate between two or more predetermined levels.

Ip-tv broadcasting service system and method using physical layer's multicast switch

An IP-TV(Internet Protocol-Television) broadcasting service system and method using a multicast switch of a physical layer are provided to provide a quality image signal, simplify the configuration of network controlling, and duplicate a large number of bundled image signals. A head end(100) converts an ethernet signal into a VCG(Virtual Concatenation Group) signal of an SDH/SONET(Synchronous Digital Hierarchy/Synchronous Optical Network). A multicast switch(120) multicasts the VCG signal from a physical layer. A tail end(110) restores the multicast VCG signal received through an STM-N optical link into the ethernet signal. A GFP(Generic Framing Procedure) mapping unit(104) maps the ethernet signal. A VCAT(Virtual Concatenation)(106) separates a VCG having an allocated requested bandwidth of the ethernet signal at a minimum signal unit of the STM-N. An LCAS(Link Capacity Adjustment Scheme)(112) restores the signal received through the STM-N optical link into the VCG signal. A GFP demapping unit(114) demaps the restored VCG signal to extract the ethernet signal.

Disaggregated hybrid optical transport network, internet protocol, and Ethernet switching system

Systems and Methods for switching optical data units (ODUs) and Internet Protocol (IP) packets as Ethernet packets in an optical transport network (OTN), IP, and Ethernet switching system. The OTN, IP, and Ethernet switching system may include an Ethernet fabric having a set of M Ethernet switches each including a set of N switch ports, and a set of N input/output (IO) devices each including a set of W IO ports, a set of M Ethernet ports, an IO side packet processor (IOSP), and a fabric side packet processor (FSP). Each Ethernet switch may establish switch queues. Each IO device may establish a set of M hierarchical virtual output queues each including a set of N ingress-IOSP queues and ingress-virtual output queues, a set of W egress-IOSP queues, a set of M ingress-FSP queues, and a set of N hierarchical virtual input queues each including a set of N egress-FSP queues and egress-virtual input queues.

A method of controlling flow of the ethernet data in a synchronous data hierarchy transmission network

The invention discloses a method for controlling Ethernet data flow on a synchronous digital hierarchy (SDH) transmission network. The method comprises: step a) setting a data buffer at receiving direction of a programmable logic array; and step b) setting a receiving high threshold and a receiving low threshold for the buffer. When applying the method, remote transmission of SDH facilities keeps the data flow control effective, so remote transmission of Ethernet data is reliable.

Method and device for realizing network connection service establishment

本发明公开一种实现网络连接服务建立的方法，用于自动交换光网络中，包括：发起源端用户侧到宿端用户侧的网络连接服务建立请求；该网络连接服务的网络入口节点与该网络连接服务的网络出口节点通过控制平面的消息交互协商确定双方节点之间用于支撑该网络连接服务的网络连接以及网络连接服务中从用户侧到网络侧的协议适配栈；网络连接服务的网络入口节点和出口节点建立所述支撑网络连接服务的网络连接和适配栈配置完成网络连接服务建立。另外，本发明还公开一种相应的装置。本发明不需手工配置，可以降低连接建立的时延，并有利于在多服务传送网络条件下进行多服务的传送。

Message interoperability methods, POTN interworking modules and POTN systems

本发明公开了一种报文互通方法、POTN互通模块及POTN系统；上述POTN系统包括：PTN模块、OTN模块以及POTN互通模块；POTN互通模块，配置为执行以下至少一项：将通过PTN模块接入的PTN业务的以太网报文转换为ODUk报文、将通过OTN模块接入的OTN业务的ODUk报文转换为以太网报文。本申请无需现网改造即可实现PTN终端和OTN终端在POTN系统内的互通，从而提升POTN系统的集成度并降低POTN网络的部署成本。

Method and device for establishing network connection service, and automatically switched optical network

A method for establishing a network connection service includes: initiating a request for establishing a network connection service from the user side of a source end to the user side of a sink end; a network ingress node and network egress node of the network connection service communicating through message exchange to determine a network connection between the two nodes for supporting the network connection service and a protocol adaptation stack from the user side to the network side in the network connection service; and the network ingress node and the network egress node establishing the network connection supporting the network connection service and configuring the adaptation stack, so as to establish the network connection service. With the invention, no manual configuration is needed, and it is possible to reduce the time delay in the connection establishment and facilitate multi-service transport under a multi-service transport network condition.

Implementation method on multi-service flow over RPR and apparatus therefor

A data transmission apparatus for implementing multiple service flow in a multiple service ring is described. The apparatus includes a trunk pipe and at least two nodes each with at least one flow. The apparatus also includes a flow Rx framer for converting data received from the flow into data packets of a predetermined protocol, a transmission setup device for setting up information for packets of the predetermined protocol to be transmitted, and a Tx framer for encapsulating the information into frames of the MSR and transmitting the same along the trunk pipe to a downstream neighbor node along the ring.

Securing virtual lane physical layers

A data stream with a given data rate is distributed into a plurality of virtual lanes or streams, each with a lower data rate than the data stream. Virtual lanes permit the use of lower cost electronics at the optical-electrical conversion points. Security information is generated that includes a unique initialization vector. The security information is distributed or allocated across some or all of the of the virtual data streams in a virtual lane alignment marker in a portion of the alignment marker used to maintain direct current (DC) transmission balance, but that otherwise does not provide useful information.

System and method for transporting channelized ethernet over sonet/sdh

A system for transporting traffic is provided. The system transports traffic from a first network access path (L1) over a transport network path (L2) having multiple channels and transports traffic from a second network access path (L3) over the same transport network path (TP1). The system transports the traffic using transport network path channels wherein the bandwidth of t he first network access path is higher than the capacity of any of the transpor t network path channels and wherein the bandwidth of the second network access path is higher than the capacity of any of the transport network path channels. The system allocates a first quantity of the transport network pat h channels for transporting traffic from the first network access path. The system allocates a second quantity of the transport network path channels fo r transporting traffic from the second network access path. And, the sum of th e first quantity plus the second quantity is less than or equal to the total number of channels in the transport network path.

The methods, devices and systems of ether data processing in optical-fiber network

本申请实施例涉及光通信领域，尤其涉及光传送网络中的数据处理技术。在一种数据处理的方法中，一个光网络设备从一个路径的数据帧中提取出以太数据，并将所述以太数据转换为另一格式后，放置到另一路径的数据帧中，其中，所述光网络设备为所述路径的目的设备且为所述另一路径的源设备；此外，所述光网络设备还从所述路径的数据帧中提出开销信息，并将所述开销信息插入所述另一路径的数据帧中。本申请提供的数据处理方法可以实现不同类型的以太接口的互通。此外，通过跨路径的开销处理，该方法降低了路径管理复杂度。

A kind of method, apparatus and system of data transmission

本申请揭示了一种数据转发方法、装置和系统。在一种可能的实现方式中，数据转发装置包括收发器和处理器。其中，所述收发器接收光网络单元(ONU)设备发送的上行数据帧。所述处理器对所述上行数据帧进行处理，获得一个发往同一目的ONU设备的数据帧组。然后，所述处理器将这个数据帧组封装到光传送网络(OTN)数据帧中，利用所述收发器发送所述OTN数据帧。本申请揭示的数据传送技术，通过使用价格低廉的ONU设备，并将有带宽保证需求的业务承载到对应带宽的OTN数据帧，降低了传送网络承载有带宽保证需求的业务的设备成本，同时还可以保证业务传输质量。

Methods, related devices, and systems for obtaining target transmission routes

本出願の実施形態は、ターゲット伝送ルートを取得するための方法、関連デバイス、およびシステムを提供する。この方法は、フレキシブルイーサネットFlexEネットワーキングネットワークに適用され、第1のFlexEクライアントの伝送ルートをクエリすることを要求するために第2のノードによって送信された第1のメッセージを受信するステップと；第2のメッセージを第2のノードに送信するステップと、を含み、第2のメッセージのルート情報エントリは、各ノードのFlexEクライアントのルート情報を含む。ルートノード上のFlexEクライアントのものである入力情報と出力情報は、各ホップの伝送ルートとして記録される。FlexEネットワーク内のセグメント間伝送ルートはリアルタイムで動的に確認され得、計画および展開された伝送ルートは実際に確認されたルートと比較されて、ネットワークの実行ステータスを評価し、伝送ルートのコネクション接続性がさらに検出され得、FlexEネットワーク内の伝送ルート上の障害ノードが特定され得る。

Method and device for transmitting and receiving clock synchronization message

Provided in the present application is a method for transmitting and receiving a clock synchronization message in FlexE, comprising: a transmitting device generates indication information and a plurality of data blocks, the plurality of data blocks being obtained by encoding a first clock synchronization message, the indication information being used to indicate a first data block, and the first data block being a data block for time-stamp sampling among the plurality of data blocks; the transmitting device determines, according to the indication information, the time when the first data block reaches a medium dependent interface (MDI) of the transmitting device and generates a transmitting time stamp, the transmitting time stamp being used for recording the transmitting time of the first clock synchronization message; the transmitting device generates a second clock synchronization message carrying the transmitting time stamp; and the transmitting device transmits the second clock synchronization message. The present invention thus improves the frequency of clock synchronization, increases the bandwidth that may be used for transmitting clock synchronization messages, and also reduces the complexity of clock synchronization.

Fault indication method and device in flexible Ethernet

本发明涉及通信技术领域，尤其涉及一种灵活以太网中故障指示方法以及装置，所述故障指示方法包括：检测灵活以太网组中所包含的至少一个物理层实体是否发生故障；当所述至少一个物理层实体发生故障时，向发生故障的所述至少一个物理层实体所对应的灵活以太网客户周期地发送故障指示码块。相比现有技术，本发明实施例提供的技术方案可以避免占用灵活以太网的下游传输路径的全部带宽，也可以避免影响同一个灵活以太网组内非故障通道的数据传输，从而减少了受影响的灵活以太网客户的数量。

Data transmission method, communication device and storage medium

Provided are a data transmission method, a communication device and a storage medium, for reducing the number of cross-connections of an intermediate node in a network. In the embodiments of the present application, Q first code block streams are acquired, and non-synchronization head regions of code blocks in the Q first code block streams are placed in a second code block stream to be sent, wherein an encoding type of the first code block stream and the second code block stream is M1/N1 bit encoding; a code block in the first code block stream and the second code block stream comprises a synchronization head region of (N1-M1) bits and a non-synchronization head region of M1 bits, and a non-synchronization head region of a code block in the Q first code streams is borne in a non-synchronization head region of a code block in the second code block stream. In this way, code block streams can be multiplexed and demultiplexed on the granularity of code blocks; the second code block stream reaches a communication device at a demultiplexing side after passing through at least one intermediate node; and the intermediate node will not demultiplex the second code block stream, so the number of cross-connections of the intermediate node in the network can be reduced.

Apparatus for hybrid-transmitting and bridging of a circuit service and a packet service

An apparatus and a system for hybrid-transmitting and bridging of a circuit service and a packet service are provided. The apparatus includes a TDM framing unit, a TDM three-direction cross unit, and a mapping and encapsulating unit. The TDM framing unit implements conversion between a line layer TDM signal outside the apparatus and channel layer TDM signals inside the apparatus, and transmits the channel layer TDM signals to the TDM three-direction cross unit. The TDM three-direction cross unit implements cross scheduling on the channel layer TDM signals from a TDM cross apparatus, the mapping and encapsulating unit, and the TDM framing unit. The mapping and encapsulating unit implements conversion between a channel layer TDM signal from the TDM three-direction cross unit and packet service signals from the packet processing unit.

Optical transmission system and method

An optical transmission system for performing frequency synchronization even with a client signal with low frequency accuracy, and for transmitting thereof by accommodating/multiplexing without causing a bit slip. A new overhead is added to the entire client signal, and the signal including the new overhead being stuffed is transmitted in conjunction with a plurality of stuffing bits as an optical signal wherein a data storing bit for a negative stuffing, a stuffing information notification bit, and a stuff bits inserting bit for a positive stuffing in the payload are defined in plurality as stuffing bits for adjusting clock frequencies of the client signal in this new overhead.

System and methods for selectively transmitting ethernet traffic over SONET/SDH optical network

An interface for an optical node with a plurality of input ports and output ports in SONET/SDH optical network connected to a plurality of virtual concatenation channels has a plurality of input ports for taking Ethernet signals as inputs, and a plurality of output ports for selectively outputting Ethernet frames in the Ethernet signals to the virtual concatenation channels. A method classifies the Ethernet input pipes in a SONET/SDH network with a plurality of virtual concatenation channels, and allocates the classified packets onto the virtual concatenation channels.

G. 709 based signaling control method and system for business establishment

Efficient framing procedure for variable length packets

本发明公开了一种处理以太网信号以用于光网络系统中的传输的方法。该方法包括将以太网帧封装为包括长度头部、汇聚数据链路头部和数据区域的EFP帧，并将所述EFP帧映射到字节同步路径。所述汇聚数据链路头部取代了所述以太网分组的以太网报头。

Method, device and system for transmitting multi-channel independent Ethernet data

本发明实施例提供了一种传输多路独立以太网数据的方法、装置和系统，该方法主要包括步骤：利用光通道净荷单元虚级联帧结构OPUk-Xv中设置的多个时隙通道和NJO(多对负调整机会字节)和PJO(正调整机会字节)，组成虚级联的多路传输通道；通过所述多路传输通道中的每路的传输通道分别传输一路的独立以太网数据。利用该技术方案，从而可以实现OTN(光传送网)透明传送多路独立以太网数据，并且解决了多路独立以太网数据穿越OTN网络延时不可控问题、频偏范围不适用于IEEE(电子和电器工程师学会)系列定义的以太网接口的问题。

Clock synchronization method and apparatus

A clock synchronization method includes receiving, by a receiving apparatus, a plurality of data blocks using a plurality of physical layer modules (PHYs), where the plurality of data blocks include a plurality of head data blocks, performing, by the receiving apparatus, timestamp sampling on the plurality of data blocks to generate a plurality of receipt timestamps, aligning, by the receiving apparatus, the plurality of receipt timestamps using a first receipt timestamp as a reference, generating, by the receiving apparatus, a clock synchronization packet based on the plurality of data blocks, and writing, by the receiving apparatus, a value of a second receipt timestamp into the clock synchronization packet, where the second receipt timestamp is a receipt timestamp that is of a second data block and that is determined based on the plurality of aligned receipt timestamps.

Method, network device, and system for transmitting wireless fronthaul interface signal

本发明实施例公开了一种传输无线前传接口信号的方法、设备和系统，该方法包括：网络设备获取无线前传接口信号，所述无线前传接口信号包括多个编码块；将所述无线前传接口信号映射到M个灵活以太网FlexE的服务层时隙中，生成FlexE信号，所述FlexE的服务层时隙根据所述无线前传接口信号的速率确定，所述M为大于或等于1的正整数；将所述FlexE信号发送到一路或多路物理通道中。实现了通过FlexE承载CPRI、eCPRI、NGFI等无线前传接口信号，根据无线前传接口信号的速率对FlexE的服务层时隙进行划分，提高了前传FlexE接口的带宽利用率以及提高了无线前传接口信号的传输效率。

Application of an ethernet/MPLS "half bridge" to provide emulated ethernet LAN functions in SONET networks

A system and method for providing emulated Ethernet LAN functions in a SONET network are provided. In one embodiment, a virtual private network includes a core network. The core network includes a shared label switching over SONET network. A plurality of Virtual Local Access Networks (VLANs) are each coupled to a Multiservice Provision Platform (MSPP) of the SONET network. Each VLANs communicates traffic with a corresponding MSPP utilizing Ethernet. The MSPPs interface the VLANs with the SONET network.

Flexible ethernet data transmission method and apparatus

The invention provides a flexible Ethernet (FlexE) data transmission method and apparatus. In one embodiment, the FlexE data transmission method comprises: a first FlexE apparatus receiving, using a first client schedule, data transmitted from a second FlexE apparatus; determining, according to an incorrect data block in the data, a first time slot error; adding a time slot error notification to an overhead header to be transmitted to the second FlexE apparatus; and receiving a second client schedule transmitted by the second FlexE apparatus to receive data transmitted from the second FlexE apparatus. In the embodiment of the invention, the FlexE apparatus at a receiving end can notify the FlexE apparatus at a transmitting end of the time slot error, to enable the FlexE apparatus at the transmitting end to timely adjust a transmission time slot, reducing an impact of the time slot error in data transmission.

Communication method and device

本申请提供了一种在环网中传输数据的方法，该环网包括两个相邻的FlexE交叉环，每个FlexE交叉环包括至少3个节点，该两个FlexE交叉环具有至少一个公共节点，并且，该公共节点承载跨环的端到端工作路径，该两个FlexE交叉环各自包括一个环状保护路径。由于两个FlexE交叉环中任意两个相邻的节点之间都具有保护路径，因此，若公共节点的链路出现故障，则与公共节点相邻的节点可以利用环状保护路径将数据从一个FlexE交叉环传输至另一个FlexE交叉环，从而提高了包括至少两个FlexE交叉环的环网的可靠性。

Data processing method, communication single board and device

Embodiments of the present invention provide a data processing method, a communications board and a device, which relate to the field of communications technologies and can reduce a transmission delay of a TDM service. The method includes: acquiring, by a first communications board, an optical channel data unit ODU data flow; performing, by the first communications board, slicing processing on the ODU data flow according to a fixed frame frequency, so as to obtain various slices, where each slice includes a section of continuous ODU data in the ODU data flow; separately encapsulating, by the first communications board, each slice into an Ethernet frame; and sending, by the first communications board, each Ethernet frame to a time division multiplexing TDM service switching module in an Ethernet switching chip, so that the TDM service switching module sends each Ethernet frame to a second communications board to which a destination MAC address carried in the Ethernet frame directs.

System and method for managing an optical networking service

Described are a system and method for managing a service across an optical network over a dedicated circuit between a first and second service termination points. Each service termination point generates a service performance report message. Each service performance report messages has information related to a performance of the service as determined by the service termination point generating the message. The service termination points exchange the service performance report messages over a service management channel to enable an assessment of the performance of the service based on the service performance report messages from both service termination points. Through access to and use of the service management channel, service providers can implement an edge management model or a core management model for measuring the performance of their services with respect to service level agreements governing those services.

Service data processing method and device in optical transport network

G.709-based multi-stage multiplexing signaling control method and system

本发明提供了一种基于G.709的多级复用的信令控制方法，包括：控制平面获得待建立的端到端业务的路由信息、端到端业务路由上的网关网元信息和网关网元上选择的多级复用能力后，发起端到端连接建立过程，发送端到端连接建立信令至所述端到端路由经过的节点，所述端到端连接信令中包含端到端路由经过的网关网元上选择的多级复用能力，并在对应的网关网元上配置对应的多级复用能力。本发明还提供了一种基于G.709的多级复用的信令控制系统。

Frame based data transmission over synchronous digital hierarchy network

A frame based data communications network is interfaced to a synchronous digital hierarchy network via a plurality of frame based data port cards incorporated into a plurality of synchronous multiplexers. Each port card comprises a conventional frame based data port, a frame switch, a rate adapter means and a mapping means for mapping data frames into a plurality of SDH virtual containers. Frame based data is incorporated directly into a synchronous virtual container without encapsulation in an intermediate protocol. A number of topologies of a frame based data channel network are possible, overlaid on the underlying synchronous transport network, including an open loop topology, a ring mode topology, and a backhaul topology.

Method for processing data of flexible Ethernet and related equipment

本发明实施例公开了一种处理灵活以太网的数据的方法及相关设备，其中方法包括：获取待交换的第一客户业务流，该第一客户业务流为适用于在灵活以太网传输的业务流，例如为符合灵活以太网传输标准的业务流；将该第一客户业务流进行从源时钟域到目标时钟域的第一速率适配处理，得到与目标时钟域匹配的第二客户业务流；将第二客户业务流在该目标时钟域中进行串并转换处理，以得到并行的客户时隙流，可以获得合理的交换电路加速比，避免电路资源的浪费。

Data transmission method and apparatus

This application provides a data transmission method and apparatus. The method includes: processing, by a network device, a to-be-sent optical data unit ODU to obtain another ODU, where a bit rate of the another ODU is lower than a bit rate of the ODU; and sending, by the network device, the another ODU. In embodiments of this application, the ODU is processed to obtain the another ODU with a lower bit rate, and this helps reduce a rate increase when service data is transmitted in an OTN, so as to reduce an OTN interface rate and OTN costs.

Semi transparent tributary for synchronous transmission

Communication method and apparatus

This application provides a method for transmitting data on a ring network. The ring network includes two adjacent FlexE cross-connection rings, each FlexE cross-connection ring includes at least three nodes, the two FlexE cross-connection rings have at least one common node, the common node carries a cross-ring end-to-end working path, and each of the two FlexE cross-connection rings includes one ring-shaped protection path. Because there is a protection path between any two adjacent nodes in the two FlexE cross-connection rings, if a link fault occurs in the common node, a node adjacent to the common node may transmit data from one FlexE cross-connection ring to another FlexE cross-connection ring by using the ring-shaped protection path. Therefore, reliability of the ring network including the at least two FlexE cross-connection rings is improved.

Data transmission method, sending device and receiving device

本申请实施例公开了一种数据传输方法、发送装置及接收装置，用于提高网络传输整体的稳定性。本申请实施例方法包括：发送装置获取码块集合，所述发送装置判断所述码块集合中是否包括空闲码块，若是，则所述发送装置生成专用码块，所述专用码块包括指示域和数据域，所述数据域用于承载业务，所述指示域承载指示信息，所述指示信息用于指示所述专用码块及所述数据域中承载有所述业务，所述发送装置用所述专用码块替换所述空闲码块得到目标码块集合，所述发送装置发送所述目标码块集合。

CPRI Data Block Transmission Method and Apparatus

Methods and apparatus are provided for transmitting data. In one aspect, a method of transmitting data comprises identifying a start of a Common Public Radio Interface (CPRI) frame, identifying CPRI data blocks of the CPRI frame, and transmitting the CPRI data blocks of the CPRI frame in slots of a FlexE calendar of a Flex Ethernet physical layer group (FlexE PHY group).

A mapping and de-mapping method between gigabit ethernet data packet and sdh frame structure

The invention provides a mapping and de-mapping method between Gigabit Ethernet data packet and SDH frame; it has the advantages of high bandwidth utilization and flexible application mode. For multi port Gigabit Ethernet, when the data transmission rate of the transmission port is not full, this method adopts a cascade virtual container formed by virtual cascade to carry Gigabit Ethernet data packet from various ports; the data packet will be transmitted by multiple or low rate SDH frame, therefore optimizes the bandwidth resource. Furthermore, these virtual containers of the cascade virtual container are independent of each other, so the number of virtual containers for each Gigabit Ethernet adapter can be assigned arbitrarily according to the bandwidth requirement, therefore achieves flexibility and convenience.

Obtain method, relevant device and the system in object transmission path

本发明实施例提供了一种获得目标传输路径的方法、相关设备及系统。其中，该方法应用于灵活以太网FlexE组网网络中，包括：接收第二节点发送的请求查询第一FlexE客户传输路径的第一消息；向所述第二节点发送第二消息；其中，第二消息中的路径信息表项包括FlexE客户在各节点上的路径信息。通过记录FlexE客户在路径节点上的入口信息及出口信息，作为每一跳的传输路径，可以实时动态发现FlexE网络段到段的传输路径、比对规划部署的传输路径与实际发现的路径以评估网络的运行情况，还可以检测传输路径上的连接连通性和定位FlexE网络内传输路径上的故障节点。

Method and device for regulating broadband in broad band demand distribution service

本发明实施例公开了一种在带宽按需分配业务中调整带宽的方法，所述带宽按需分配业务对应一个虚级联组，包括：用户网络接口客户端UNI-C通过控制平面信令向用户网络接口网络端UNI-N发送基于带宽按需分配业务的带宽调整消息，所述带宽调整消息包括带宽调整量；所述用户网络接口网络端根据所述带宽调整量和底层隧道粒度调整带宽。本发明实施例还公开了一种在带宽按需分配业务中调整带宽的装置，根据本发明，通过将控制平面GMPLS技术与传送平面的LCAS、VC和GFP技术相结合，不但自动完成BoD业务的建立，并且客户可以根据业务流量的变化情况，进行实时、动态地业务带宽调整。

Digital transmission system and digital transmission method

A digital transmission system having at least a client device and a transmission device and rate-adjusting a client signal transmitted from the client device to the transmission device as necessary, to accommodate/multiplex the signal in a frame, is provided. The transmission device has a rate adjusting unit and a framer processing unit. The rate adjusting unit encapsulates the client signal using a predetermined frame structure, and inserts an idle pattern, as necessary, to perform rate adjustment to a bit rate that can be accommodated in the frame. The framer processing unit accommodates/multiplexes the signal into the frame after the rate adjustment. The digital transmission system accommodates, or accommodates and multiplexes, a bit string of the client signal directly in a payload portion, accommodates, or accommodates and multiplexes, the bit string in the payload portion after subjecting it to a reversible digital signal processing.

Method for transmitting an esmc message through a sonet/sdh domain

본 발명의 실시예는 제 1 및 제 2 "SyncE"(Synchronous Ethernet) 도메인 사이에서 "ESMC"(Ethernet Synchronization Messaging Channel) 메시지를 송신하되, 상기 제 1 및 제 2 도메인은 제 3 "SONET/SDH"(Synchronous Optical Networking or Synchronous Digital Hierarchy) 도메인에 의해 서로 연결되는 방법을 설명하며, 여기에서 상기 "ESMC"(Ethernet Synchronization Messaging Channel) 메시지의 적어도 하나의 부분은 제 3 "SONET/SDH"(Synchronous Optical Networking/Synchronous Digital Hierarchy) 도메인을 통해 네트워크 터널을 생성하도록 상기 제 3 도메인에 들어갈 때 캡슐화되며 상기 제 3 도메인을 나갈 때 캡슐화 해제된다. The embodiment of the present invention transmits an " ESMC " (Ethernet Synchronization Messaging Channel) message between first and second SyncE (Synchronous Ethernet) domains, (Synchronous Optical Networking or Synchronous Digital Hierarchy) domain, wherein at least a portion of the Ethernet Synchronization Messaging Channel (ESMC) message is a third "SONET / SDH" / Synchronous Digital Hierarchy) domain to encapsulate upon entering the third domain to create a network tunnel and are unencapsulated upon exiting the third domain.

Method for supporting Ethernet MAC circuits

在以太网网络中为支持以太网MAC电路提供了以太网MAC子层。根据一个实施例，提供以太网MAC子层以便处理和建立电路。MAC子层提供高层信令和路由应用的支持，以实现以太网MAC电路功能。MAC子层为WAN学习和电路建立提供中断。MAC子层还提供地址表条目扩展以允许使用节点之间的多条链路。路由应用用于管理路由信息，维护MAC到端口映射数据库并管理端口资源。信令应用用于建立和管理电路。根据不同的实施例，可在以太网网络中管理具有不同类型和属性的电路。

Transmission device, SONET / SDH transmission device and transmission system