Method and system for refreshing MAC (Medium Access Controller) in Ethernet ring

Abstract

The invention discloses a method and a system for refreshing an MAC (Medium Access Controller) in an Ethernet ring. The Ethernet ring comprises first kink nodes with midside nodes and boundary nodes executing the same private ring protocol and public protocol and at least one second kind node capable of executing the public protocol. The method comprises the following steps of: detecting the link state of the Ethernet ring by all nodes in the Ethernet ring; when the first kind nodes detect that the link of the Ethernet ring has a fault, sending a topology change message of the public protocol to the second kind nodes through the boundary nodes to refresh an MAC forwarding address table of the second kind nodes; and when the second kink nodes detect that the Ethernet ring link has a fault, sending a topology change message of the public protocol to the boundary nodes of the first kind nodes to refresh the MAC forwarding address table of the first kind nodes. The invention solves the problems that when devices of different manufacturers form a ring, successful docking cannot be realized, the MAC cannot be quickly refreshed, and the switching time cannot reach the telecommunication level requirement.

Description

technical field [0001] The invention relates to the communication field, in particular to a method and system for refreshing MAC in an Ethernet ring network. Background technique [0002] With the widespread application of Ethernet in MANs, the scale of Layer 2 networks is also increasing. The performance of Ethernet, such as reliability, has become the focus of more and more attention of telecom operators. In a switched network, the main means to improve network reliability is to deploy some redundant links, so that when the main link fails, the backup link can be used. In the case of using redundant link backup, the protection and restoration capabilities of the network become the key, especially the development of real-time services such as voice and data puts forward higher requirements on the fault recovery ability of the network. Traditional Ethernet recovery capabilities are usually implemented through the STP (SPANING TREE PROTOCOL) protocol, but their self-healing ...

AI Technical Summary

Problems solved by technology

[0012] The purpose of the present invention is to provide a method and system for refreshing the MAC in the Ethernet ring network, which can better solve the problem that the switching time cannot meet the carrier-level requirements because the MAC cannot be refreshed quickly when the devices of different manufacturers form the Ethernet ring network

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