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Method for realizing non-return mode in Ethernet dual-homed connection protection

A technology of dual-homing connection and implementation method, which is applied in the field of data communication and can solve problems such as affecting network operation, a large number of broadcast frames, and communication interruption.

Inactive Publication Date: 2009-12-09
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The technical problem to be solved by the present invention is to propose a method for implementing the non-return mode in Ethernet dual-homing connection protection, so as to solve the problem that communication interruption and a large number of broadcast frames are caused by the recovery switching of the existing dual-homing connection protection, which affects network operation.

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  • Method for realizing non-return mode in Ethernet dual-homed connection protection
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  • Method for realizing non-return mode in Ethernet dual-homed connection protection

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Embodiment Construction

[0021] The present invention proposes a method for realizing the non-return mode in Ethernet dual-homing connection protection. When a faulty link of a dual-homing node is detected to recover, if the link currently used by the dual-homing node is normal, the link switching will not be performed. , to block the ports of the fault recovery link, and keep the ports of the currently used link open. In the present invention, this switching mode is called a non-return mode.

[0022] After pre-setting the Ethernet dual-homing connection protection to non-return mode, when the dual-homing node detects that one of the links corresponding to the two ports is in good condition and the other link has a fault recovery event, the fault recovery link is maintained. The port corresponding to the link is blocked, and the port corresponding to the link that is kept in good condition is open, without switching the protection data communication path.

[0023] The present invention will be furthe...

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Abstract

The invention provides a method for realizing a non-return mode in Ethernet dual homed connection protection. When one fault link of a dual homed node recovers and the other one is free of fault, switching is not performed and the fault recovering link is maintained in a block state. In the dual-homed connection, the dual-homed connection protection fails to perform switching of a communication path if an available path exists in the network communication when a path recovers. The protection method of the non-return mode can prevent communication interruption and large amount of broadcast frames generated when the Ethernet dual-homed connection protection recovers switching.

Description

technical field [0001] The invention relates to the field of data communication, in particular to a method for realizing a non-return mode in Ethernet dual-homing connection protection. Background technique [0002] In the actual application of Ethernet, the networking structure of Ethernet dual-homing connection is widely used to improve the reliability of the network. With the development of the Ethernet network in the direction of multi-service bearing, especially some services have higher and higher requirements on the reliability and real-time performance of the network, the protection method of Ethernet dual-homing connection is used in the network, and the convergence time during switching is less than 50ms (milliseconds) high real-time requirements. [0003] The Ethernet dual-homing connection topology is as follows: Figure 1a As shown, node S1 is an Ethernet switch, network B is connected to node S1, node S1 is connected to network A through two paths, and there a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/24H04L1/22H04L12/28
Inventor 吴少勇
Owner ZTE CORP
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