Method and system for refreshing media access control

Abstract

The invention discloses a method for refreshing a media access control address. The method comprises the following steps of: acquiring a target media access control (MAC) address to be refreshed according to a port corresponding to a fault link between nodes; and selecting the MAC address matched with a source MAC address and the target MAC address to perform refreshing by matching the source MAC address of other nodes and the target MAC address. The invention also discloses a system for refreshing the media access control address, which comprises an acquisition unit, a matching unit and a refreshing unit, wherein the acquisition unit is used for acquiring the target MAC address to be refreshed according to the port corresponding to the fault link between the nodes; the matching unit is used for matching the source MAC address of other nodes and the target MAC address; and the refreshing unit is used for selecting the MAC address matched with the source MAC address and the target MAC address to perform refreshing. The method and the system of the invention can realize selective refreshing of the MAC address.

Description

technical field [0001] The invention relates to a refresh technology of a medium access control (MAC) address, in particular to a method and a system for refreshing a MAC address in the protection switching of an Ethernet ring network. Background technique [0002] At present, the Ethernet ring structure is widely used in the metropolitan area network or enterprise network to improve the reliability of the network. When a link on the ring network is disconnected, the communication between the nodes on the ring network can be restored by enabling the backup link. Such as figure 1 Shown is a schematic diagram of the structure of the Ethernet ring, figure 1 The Ethernet ring network consists of nodes 21-25, users 11-12, the link between user 11 and node 21, the link between these five nodes, and the link between node 24 and user 12 . Wherein, the link between the node 21 and the node 22 is a protection link (RPL, Ring Protection Link), the node 21 is the master node, and all...

AI Technical Summary

Problems solved by technology

Using the existing MAC address refresh method, because many entries that do not need to be refreshed are deleted, the convergence time of protection switching is longer

At the same time, this excessive refresh directly deletes all entries in the FDB table indiscriminately, so that there is no basis for forwarding paths for message forwarding between users, and they do not know how to forward, and it will also cause message forwarding between all users of each node The traffic floods on each port of the ring, and occupies the bandwidth occupied by the normal service packet forwarding traffic. In severe cases, it will cause congestion and have to discard some service packets.

In short, in order to avoid too long convergence time and avoid traffic flooding caused by excessive refresh, a new refresh method is urgently needed, and there is no effective solution for this new refresh method

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