Network topology information acquisition method and device

A technology of network topology information and network equipment, applied in the field of network topology information collection, can solve problems such as inability to accurately obtain interface-related information and real-time traffic information, affect the accuracy of topology drawing traffic scheduling, and achieve the effect of improving accuracy

Active Publication Date: 2016-05-18
NEW H3C TECH CO LTD
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Problems solved by technology

[0015] The embodiment of the present application provides a method and device for collecting network topology information, which solves the problem that in the existing topology collection scheme based on the

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  • Network topology information acquisition method and device
  • Network topology information acquisition method and device
  • Network topology information acquisition method and device

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Embodiment Construction

[0049] As mentioned in the background technology, whether it is OSPF or IS-IS, in the existing IGP protocol, the corresponding message does not carry the name of the interface, description information, address information and real-time traffic information of the interface, so it is impossible to Accurate interface information positioning and traffic recording in the network topology affect the timeliness and accuracy of traffic scheduling.

[0050] In order to solve the problem of incomplete information collection existing in the existing network topology collection scheme, the embodiment of this application proposes a network topology information collection method, by expanding the information carried in the IGP link status description message, more Comprehensive network topology information feedback improves the accuracy and comprehensiveness of network topology information collection, so that traffic scheduling can be implemented more timely and accurately based on such netw...

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Abstract

The embodiment of the invention discloses a network topology information acquisition method and device. According to the technical scheme provided by the embodiment of the invention, the network topology information acquisition method and device expand the current IGP link state description message and allow the message to carry information such as interface names, interface description information, address information, flow occupation information and the like so as to allow the local LSDB of a network device to record more comprehensive link state information, facilitate the collection of network topology information by a controller through the IGP link state description message and perform flow scheduling based on more accurate network topology information, therefore the accuracy of the network topology information acquisition process and the accuracy of the flow scheduling process based on the network topology information are improved.

Description

technical field [0001] The present application relates to the field of communication technologies, and in particular to a method and device for collecting network topology information. Background technique [0002] OSPF (OpenShortestPathFirst, Open Shortest Path First) is a link state-based autonomous system internal routing protocol developed by IETF (InternetEngineeringTaskForce, Internet Engineering Task Force). The message establishes and maintains the neighbor relationship, and the LSA (LinkStateAdvertisement, link state broadcast) describing the link state is diffused between the devices forming the neighbor relationship, and each device finally forms the same LSDB (LinkStateDataBase, link state database), Routing calculation is performed on the basis of LSDB to generate routing information and save it in RIB (RoutingInformationBase, routing information base). RIB selects the optimal route and sends it to FIB (ForwardingInformationBase, forwarding information base) to ...

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Application Information

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IPC IPC(8): H04L12/751H04L45/02
CPCH04L45/02
Inventor 林长望
Owner NEW H3C TECH CO LTD
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