Implementation method for bidirectional protective switching of multi-protocol label switching

A multi-protocol label and protection switching technology, which is applied in the field of multi-protocol label switching two-way protection switching, can solve problems such as misoperation and affecting the reliability of business communication, and achieve the effect of equal delay

Active Publication Date: 2008-03-19
HUAWEI TECH CO LTD
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AI Technical Summary

Problems solved by technology

For the 1:1 protection switching structure, there is no confirmation mechanism at both ends of the protection domain, and the switching action of the source end only depends on the BDI indication sent by the near end, which may still cause malfunction and affect the reliability of business communication

Method used

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  • Implementation method for bidirectional protective switching of multi-protocol label switching
  • Implementation method for bidirectional protective switching of multi-protocol label switching
  • Implementation method for bidirectional protective switching of multi-protocol label switching

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Embodiment Construction

[0044] The core of the invention is to realize MPLS bidirectional protection switching based on the APS (automatic protection switching) protocol, thereby providing a feasible technical solution for the protection switching of the MPLS bidirectional data channel.

[0045] The realization method of MPLS bidirectional protection switching of the present invention mainly comprises the following steps:

[0046] First, in the multi-protocol label switching MPLS network, configure bidirectional protection switching policy information for the bidirectional label switching path LSP based on the APS protocol;

[0047] The specific configuration method is as follows: in the MPLS network, determine two (or more than two) bidirectional LSPs, and each bidirectional LSP includes two LSPs with opposite directions; Or configure the corresponding protection switching strategy information at the end point; the protection switching strategy information is specifically: the protection path inform...

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Abstract

The invention relates to a method for realizing multi-protocol label switching bidirectional protection switching. The method mainly includes: first, in an MPLS (multiprotocol label switching) network, configure corresponding bidirectional protection switching policy information for a bidirectional LSP (label switching path) based on an APS (automatic protection switching) protocol; then, when in the MPLS network based on When the APS protocol determines that bidirectional protection switching is required, the bidirectional protection switching operation is performed according to the configured bidirectional protection switching policy information. Therefore, the present invention can realize effective protection to MPLS LSP two-way data channel, guarantees that the time delay of two-way flow is in equal; Simultaneously, the APS agreement that the present invention introduces can cover the protection of MPLS LSP one-way data channel, thereby unified one-way and The realization of the mechanism of two-way protection.

Description

technical field [0001] The invention relates to the technical field of network communication, in particular to a method for realizing multi-protocol label switching bidirectional protection switching. Background technique [0002] With the development of network technology, Ethernet services gradually develop from local area network to metropolitan area network and telecommunication network. In the ever-increasing demand for next-generation Ethernet services, MPLS (Multiprotocol Label Switching) technology has become the preferred network technology relying on its unique advantages. Its advantages are mainly manifested in: fast recovery, network scalability, Qos (Quality of Service) business capabilities, business aggregation capabilities, and business interoperability capabilities, and so on. [0003] As MPLS technology becomes the key technology for IP network multi-service bearer, MPLS fault detection and protection switching has become an important subject of concern in...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/06H04L12/56H04L1/22H04L45/50
Inventor 翟素平
Owner HUAWEI TECH CO LTD
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