02-06-2016 дата публикации
Номер: US20160156523A1
Принадлежит:
Disclosed are a method and system for network topology, wherein the method includes: dividing label switching routers in a single control area into a plurality of sub-areas, the label switching routers in each sub-area forming Open Shortest Path First neighbors; acquiring traffic engineering resource information of each sub-area, collecting the traffic engineering resource information of all the sub-areas, and generating a network topology within the single control area. 1. A method for network topology , comprising:dividing label switching routers in a single control area into a plurality of sub-areas, and the label switching routers within each sub-area forming Open Shortest Path First neighbors; andacquiring traffic engineer resource information of each of the sub-areas, collecting the traffic engineering resource information of all the sub-areas, and generating a network topology within the single control area.2. The method of claim 1 , wherein claim 1 , acquiring traffic engineering resource information of each of the sub-areas claim 1 , collecting the traffic engineering resource information of all the sub-areas claim 1 , and generating a network topology within the single control area claim 1 , comprises:a path computation element acquiring traffic engineer resource information of each of the sub-areas, collecting the traffic engineering resource information of all the sub-areas, and generating a network topology within the single control area.3. The method of claim 2 , wherein:said dividing label switching routers in a single control area into a plurality of sub-areas, and the label switching routers within each sub-area forming Open Shortest Path First neighbors, comprises:dividing label switching routers within the single control area into a plurality of Open Shortest Path First areas, and assigning a separate Open Shortest Path First area identifier greater than zero to each Open Shortest Path First area, and configuring the Open Shortest Path First area ...
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