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Method and system for preventing address table from being refreshed repeatedly in protection of Ethernet ring

A technology of Ethernet ring network and Ethernet ring network, which is applied in the field of preventing repeated refresh of the address table, can solve the problem of repeated refresh of the address table, and achieve the effect of preventing repeated refresh

Active Publication Date: 2011-04-27
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of this, the main purpose of the present invention is to provide a method and system for preventing repeated refresh of the address table in the protection of the Ethernet ring network, which can solve the problem of repeated refresh of the address table in the protection of the Ethernet ring network under the scene of a local protection switching request

Method used

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  • Method and system for preventing address table from being refreshed repeatedly in protection of Ethernet ring
  • Method and system for preventing address table from being refreshed repeatedly in protection of Ethernet ring
  • Method and system for preventing address table from being refreshed repeatedly in protection of Ethernet ring

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Embodiment

[0054] Example: such as image 3 Shown is the flowchart of the method for preventing the address table from being repeatedly refreshed in the protection of the Ethernet ring network of the present invention, including the following steps:

[0055] Step 201: The Ethernet ring network node receives a local protection switching request, and performs a protection switching action.

[0056] Step 202: The Ethernet ring network node sends an Ethernet ring network protection protocol frame, and includes its own node number information in the Ethernet ring network protection protocol frame.

[0057] Step 203: The Ethernet ring network node receives the Ethernet ring network protection protocol frame, and extracts the sending node number information included in the protocol frame.

[0058] Step 204: The node receiving the Ethernet ring network protection protocol frame compares the sending node number included in the Ethernet ring network protection protocol frame with its own node num...

example

[0061] Example: In a switchback scenario, the method of the present invention is used to prevent the node to which the ring protection link belongs from repeatedly refreshing the address table.

[0062] Such as Figure 4 Shown is the topology diagram of the Ethernet ring network of the present invention. A link failure occurs between nodes S2 and S3. After the link is restored, the node S1 to which the ring protection link belongs starts the waiting recovery timer and enters a suspended state. The node After S1 is in the suspended state and waits for the recovery timer to expire, it generates a local protection switching request waiting for the recovery timer to expire. Node S1 first blocks the adjacent port 11 of the ring protection link, and sends a ring protection link blocking protocol frame to notify other The node switches, the node number included in the ring protection protocol frame is 1, and the node S1 also refreshes the address table. When node S1 receives the rin...

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Abstract

The invention discloses a method for preventing an address table from being refreshed repeatedly in protection of an Ethernet ring, comprising: an Ethernet ring protocol frame is sent by an Ethernet ring node, and self node information is packed in the Ethernet ring protocol frame; the Ethernet ring node receives the Ethernet ring protocol frame and matches node information packed in the Ethernet ring protocol frame with the self node information; and when the matching is successful, the Ethernet ring node does not update the address table. The invention also discloses a system for preventing the address table from being refreshed repeatedly in protection of the Ethernet ring. In the system, a matching unit is used for matching the node information packed in the Ethernet ring protocol frame with the self node information; and when the matching is successful, the Ethernet ring node does not update the address table. By adopting the method and the system, the problem of repeated refreshing of the address table in protection of the Ethernet ring under the condition of a local protection switching request is solved.

Description

technical field [0001] The invention relates to an Ethernet protection technology, in particular to a method and a system for preventing repeated refreshing of an address table in the protection of an Ethernet ring network. Background technique [0002] With the development of Ethernet in the direction of multi-service bearing, especially some services have higher and higher requirements on network reliability and real-time performance, Ethernet widely adopts ring networking to improve network reliability. And in the protection scheme of this ring networking, it is usually required that the fast protection switching can reach less than 50 ms. Currently, this fast protection switching technology can be implemented based on the G.8032 protocol of the International Telecommunication Union (ITU-T, International Telecommunication Union). [0003] Based on the above-mentioned G.8032 protocol, an automatic protection switching protocol and mechanism are defined for the Ethernet la...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/437
CPCH04L12/437
Inventor 吴少勇
Owner ZTE CORP
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