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Link state synchronization method and device

A technology of link status and synchronization device, applied in the field of communication, can solve the problems of multi-network bandwidth, occupation, etc.

Active Publication Date: 2017-05-31
NEW H3C TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the embodiments of the present invention is to provide a link state synchronization method and device to solve the problem in the prior art that each intermediate system periodically floods LSP messages to other intermediate systems and occupies more network bandwidth

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  • Link state synchronization method and device
  • Link state synchronization method and device

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Embodiment Construction

[0032] In order not to periodically flood LSP messages to all intermediate systems during link state synchronization and save network bandwidth, the embodiments of the present invention provide a link state synchronization method and device.

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. 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 protection scope of the present invention.

[0034] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail ...

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Abstract

The embodiments of the invention provide a link state synchronization method and a device which are applied to intermediate systems. The method comprises: sending solidified link state packets (LSP) to intermediate systems in neighboring relationship with itself wherein the solidified link state packets are link state packets (LSP) that are not subjected to aging; determining a targeted intermediate system wherein the targeted intermediate system is one that does not send partial sequence numbers packets (PSNP) to itself in a preset period; and sending the solidified link state packets (LSP) to the targeted intermediate system. The embodiments can avoid the periodical flooding LSP to all intermediate systems to maintain LSDB synchronization, therefore, saving network band width.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a link state synchronization method and device. Background technique [0002] IS-IS (Intermediate System-to-Intermediate System, intermediate system to intermediate system) protocol was originally designed by ISO (International Organization for Standardization, International Organization for Standardization) for its CLNP (Connection-Less Network Protocol, connection-less network protocol) A dynamic routing protocol. In order to provide routing support for IP, IETF (Internet Engineering Task Force, Internet Engineering Task Force) has expanded and modified the IS-IS protocol so that it can be applied to both TCP / IP and OSI (Open System Interconnect, Open System Interconnect ) environment, called integrated IS-IS (Integrated IS-IS or Dual IS-IS). IS-IS belongs to IGP (InteriorGateway Protocol, Interior Gateway Protocol) and is used inside an autonomous system. The...

Claims

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Application Information

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IPC IPC(8): H04L12/755
CPCH04L45/021
Inventor 苏平
Owner NEW H3C TECH CO LTD
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