Backup method and backup device of link-state advertisement

A link state notification and backup technology, applied in the field of communications

Active Publication Date: 2013-06-05
NEW H3C TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when there is a lot of routing information or there is routing flapping, the main board needs to back up a large amount of routing information to the standby board through board communication. In serious cases, the problem of memory exhaustion may occur due to the backlog of routing information

Method used

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  • Backup method and backup device of link-state advertisement
  • Backup method and backup device of link-state advertisement
  • Backup method and backup device of link-state advertisement

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Embodiment Construction

[0049] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the embodiments of the present invention.

[0050] The core idea of ​​the present invention is: the main board sends LSA related information to the standby board, and the standby board generates the LSA itself according to the LSA related information sent by the main board.

[0051] For distributed devices, the LSAs on them can be divided into two types: one is the LSAs of other devices, such as the LSAs obtained by the mainboard from received LSU packets...

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Abstract

The present disclosure provides a method for backing up a link state advertisement (LSA) for use in a distributed device comprising a main control board and an interface board. The main control board comprises a primary board and a standby board. The method comprises: receiving by the standby board LSA related information sent by the primary board; and generating by the standby board an LSA according to the LSA related information.

Description

technical field [0001] The invention relates to the communication field, in particular to a backup method and equipment for link state notification. Background technique [0002] OSPF (Open Shortest Path First, Open Shortest Path First) is a link state-based interior gateway protocol developed by IETF (Internet Engineering Task Force, Internet Engineering Task Force). OSPF Version 2 (RFC 2328) is currently used for the IPv4 protocol. OSPFv3 is developed on the basis of OSPF to support IPv6. [0003] The OSPFv3 protocol divides the autonomous system into different areas (Area). Areas logically divide routers into different groups, and each group is identified by an area number (Area ID). like figure 1 As shown, the network system is divided into five areas, Area0 to Area4, and Area 0 is called the backbone area. The link state information of OSPFv3 will only be diffused within the scope of the area. Each area will have an independent link state information library, and e...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/24H04L12/703H04L45/24H04L45/28
CPCH04L45/04H04L41/0654H04L45/28H04L45/22
Inventor 张长君
Owner NEW H3C TECH CO LTD
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