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Method and device for implementing pseudowire protection switching

A technology of protection switching and implementation method, which is applied in the field of mobile communication, can solve the problems of large system occupation and overhead of sending and receiving, and achieve the effect of reducing overhead

Active Publication Date: 2011-11-30
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The present invention provides a method and device for implementing pseudo-wire protection switching to solve the problem in the prior art that the sending and receiving of OAM messages occupies a large amount of overhead in the PW dual-homing plus linear protection situation

Method used

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  • Method and device for implementing pseudowire protection switching

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Embodiment Construction

[0021] In the prior art, when deploying the PW dual-regulation plus linear scenario, the CV detection function of the TMC layer must be deployed, and the probability of node failure in the network is very low, but the OAM message of the TMC layer is 3.33 The speed of ms is sending and receiving, especially when the capacity of the PW dual-homing plus linear protection group is large, the OAM sending and receiving will occupy a large overhead of the system. In order to solve the problem that the sending and receiving takes up a lot of overhead in the system, the present invention provides a method and device for implementing pseudo-wire protection switching. The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0022] Before describing the technical soluti...

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Abstract

The invention discloses a method and a device for realizing pseudowire protection switching. In the scenario of PW dual-homing plus linear protection, the head node of PW dual-homing is the edge router PE1, and the tail nodes of PW dual-homing are PE2 and PE3. The first label switching path LSP protection group of the primary PW is set between PE1 and PE2. A second LSP protection group of the standby PW is set between PE1 and PE3. The method includes: closing the TMC layer connection confirmation detection function of the transport multi-protocol label switching transport network service channel on PE1, PE2, and PE3; When the active path in an LSP protection group is unavailable, LSP protection switching between PE1 and PE2 is started; when the active and standby paths in the first LSP protection group of the active PW are unavailable, PW dual-homing protection switching is started , switch the PW dual-homing tail node from PE2 to PE3.

Description

technical field [0001] The invention relates to the field of mobile communication, in particular to a method and device for realizing pseudo wire protection switching. Background technique [0002] In the prior art, the packet transmission network (PTN) technology is one of the mainstream technologies of operators at present, and the PTN network is responsible for the mission of carrying multiple services. -protocol label switch, referred to as TMPLS) network deployment, the operator puts the reliability and fault handling capability of the network in a very important position. The rapid discovery of faults and the protection switching of services are the embodiment of a network fault handling capability. [0003] How to make the network switch quickly when a fault occurs is the goal pursued by various equipment providers. The current bearer network adopts a variety of technologies to improve the detection speed of network faults and protection switching performance, there...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W24/04H04W36/12
Inventor 李春红
Owner ZTE CORP
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