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Dynamic maintenance method and device for related link circuits

A technology for maintaining devices and links, which is applied in data exchange through path configuration, digital transmission systems, electrical components, etc., and can solve the problem that business flows cannot be switched to protect backup links, etc.

Active Publication Date: 2010-07-28
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, among the different forwarding links that have an association relationship, there is a protection backup link B on link A on the public network tunnel. When the network is normal, it works on link A. When link A fails, the detection method of link A is fast. A fault is detected and an alarm is given immediately, and the service flow is quickly switched to link B. At this time, the detection on a link C (or a group of links C, D, E...) associated with link A The means will also quickly detect the failure of the associated link, and will also give an alarm and switch to the backup pseudo-wire of the associated link C (or a group of links C, D, E...) as needed. In this way, business may occur The problem that the flow cannot be switched to the existing protection backup link

Method used

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  • Dynamic maintenance method and device for related link circuits
  • Dynamic maintenance method and device for related link circuits
  • Dynamic maintenance method and device for related link circuits

Examples

Experimental program
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Effect test

Embodiment 1

[0064] Embodiment one: in such as figure 1 In the shown topology, the method for implementing dynamic maintenance of associated links in this embodiment is as follows: Figure 4 As shown, the method includes the following steps:

[0065] Step 401: Establish a mapping relationship between the determined link and the determined link detection configuration;

[0066] Specifically, the CE1 node connects to the CE2 node through dual-regulation of the PE1 node, first establishes the tunnel PE1-P2-PE3 as the main tunnel link, that is, determines the link, and configures the protection backup tunnel PE1-P4-PE3, also known as the link As a protection backup link; then configure the pseudowire link PW1 associated with it on the determined link PE1-P2-PE3, that is, the determined link.

[0067] On PE1 and PE3 nodes, set and determine the detection configuration on the link PE1-P2-PE3 to be the detection configuration of the BFD method, which is BFD session 1, which is used to detect th...

Embodiment 2

[0076] Embodiment two: in such as Figure 5 In the shown topology, the dynamic maintenance method of the associated link in this embodiment is as follows: Figure 6 As shown, the method includes the following steps:

[0077] Step 601: Establish a mapping relationship between the determined link and the determined link detection configuration;

[0078] Specifically, the CE1 node connects to the CE2 node through dual-regulation of the PE1 node, first establishes the tunnel PE1-P2-PE3 as the main tunnel link, that is, determines the link, and configures the protection backup tunnel PE1-P4-PE3, also known as the link As a protection backup link; then configure the pseudowire link PW1 associated with it on the determined link PE1-P2-PE3, that is, the determined link.

[0079]Set the detection configuration on the determined link PE1-P2-PE3 to the detection configuration of the TMPLS-OAM method, which is TMPLS-OAM session 1, which is used to detect the failure of the main tunnel; ...

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Abstract

The invention discloses a dynamic maintenance method for related link circuits. The method comprises the following steps: establishing a mapping relation of a determining link circuit and a determined link circuit, and generating a determining link circuit alarm when the detection configuration of the determining link circuit detects the fault of the determining link circuit; switching service flow to a backup protection link circuit; informing the detection configuration of the determined link circuit to update forwarded parameters according to the mapping relationship; and updating the own forwarded parameters through the detection configuration of the determined link circuit. The invention also discloses a dynamic maintenance device for the related link circuits. When the service flow is switched to the backup protection link circuit of the determining link circuit, the detection configuration of the determined link circuit do not give alarms, and the determined link circuit is notswitched, thereby being capable of ensuring the normal forwarded service flow on the backup protection link circuit.

Description

technical field [0001] The invention relates to link maintenance technology in Ethernet communication, in particular to a dynamic maintenance method and device for associated links. Background technique [0002] With the rapid development of the Internet, the requirements for the communication quality of carrier-class Ethernet are put forward, and the requirements for the stability and reliability of the network links are getting higher and higher. The business can be switched to the backup link within 50ms to restore business communication. However, in some multi-level network nested protection topology structures, if the outer tunnel is switched, the inner forwarding pseudowire link does not need to be switched, only the forwarding parameters of the outer tunnel need to be updated. [0003] At present, there are similar topology structures of multi-level forwarding links in the communication network application network. Usually, the high-level links are based on the low-l...

Claims

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Application Information

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IPC IPC(8): H04L12/24H04L12/26H04L12/46
Inventor 张涛
Owner ZTE CORP
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