Information synchronization method, device and communication equipment

A technology of information synchronization and equipment, which is applied in the field of communication, can solve problems such as long-term business interruption and LSP information cannot be synchronized, and achieve the effect of avoiding long-term interruption

Inactive Publication Date: 2012-08-22
BEIJING XINWANG RUIJIE NETWORK TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The present invention provides an information synchronization method, device and communication equipment, which solves the problem in the prior art that the LSP information cannot be synchronized for a long time after the equipment is restarted due to a sudden failure, and avoids long-term interruption of business

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  • Information synchronization method, device and communication equipment
  • Information synchronization method, device and communication equipment
  • Information synchronization method, device and communication equipment

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Embodiment Construction

[0020] figure 1 It is a flowchart of Embodiment 1 of the information synchronization method of the present invention, such as figure 1 As shown, this embodiment provides an information synchronization method, which may specifically include the following steps:

[0021] Step 101: When a new LSP with the same identification number as an existing LSP in the link state message LSP database is received, and the sequence number of the new LSP is less than the sequence number of the existing LSP, the new LSP The LSP performs authentication processing.

[0022] In this embodiment, the IS-IS device advertises its own link state information by flooding the LSP to the neighbor device. For the neighbor device of an IS-IS device, the IS-IS device is also its neighbor. Neighbor device of the device. For example, device A and device B are directly connected devices. For device A, device B is a neighbor device of device A, and for device B, device A is also a neighbor device of device B. LSP in ...

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Abstract

The invention provides an information synchronization method, an information synchronization device and communication equipment. The method comprises the following steps that: when a new line synchronizing pulse (LSP) with the same mark number as the existing LSP in an LSP database is received, in addition, the sequence number of the new LSP is smaller than the sequence number of the existing LSP, and the new LSP is subjected to authentication processing; when the new LSP passes the authentication, the existing LSP is returned to the equipment sending the new LSP, authentication information is added into the existing LSP so that the equipment can carry out the authentication on the existing LSP according to the authentication information, and in addition, the sequence number of the LSP with the same mark number as the existing LSP locally stored by the equipment is updated according to the existing LSP; and the LSP re-generated by the equipment according to the updated sequence number is received, and in addition, the LSP in the LSP database is updated according to the re-generated LSP. The invention also provides the information synchronization device and the communication equipment. The information synchronization method, the information synchronization device and the communication equipment solve the problem that the LSP information cannot be synchronized for a long time after the equipment is restarted through sudden failure.

Description

Technical field [0001] The present invention relates to communication technology, in particular to an information synchronization method, device and communication equipment. Background technique [0002] The Intermediate System to Intermediate System (Intermediate System to Intermediate System; hereinafter referred to as IS-IS) protocol is a link state protocol in the Interior Gateway Protocol (hereinafter referred to as IGP) protocol suite, and its routing calculation is based on the shortest The Shortest Path First (hereinafter referred to as SPF) algorithm or the incremental SPF (Incremental SPF; hereinafter referred to as ISPF) algorithm can achieve a faster convergence rate. The IS-IS protocol is currently widely used in some large-scale networks, such as Internet Service Provider (Internet Service Provider; hereinafter referred to as: ISP) or operator networks. The IS-IS device advertises its own link state information through Link State Packet (LSP), and floods neighborin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/08
Inventor 俞大风
Owner BEIJING XINWANG RUIJIE NETWORK TECH CO LTD
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