Learning method for MAC addresses, network side equipment, and system

Abstract

The embodiment of the invention provides a learning method for MAC addresses, a network side equipment, and a system, and the method comprises: generating key assignments according to the key field of a message received message, and obtaining an index value index value corresponding to the key assignments according to the key assignments; carrying out linear and random iterations to the index value according to the preset number of iterations; searching the MAC addresses corresponding to the iteration index value obtained by the first iteration in an MAC address pool according to the iteration index value obtained by the first iteration; and learning the MAC addresses of the received message according to the search result. According to the learning method, the network side equipment and the system of the invention, the random distribution of the MAC addresses is realized through the method of linear and random iterations, thereby fully utilizing the space of the MAC addresses and solving the conflict problem of the MAC addresses to the maximum.

Description

technical field [0001] The embodiments of the present invention relate to the field of communication technologies, and in particular to a method for learning a media access control address, network side equipment and a system. Background technique [0002] The Media Access Control (hereinafter referred to as: MAC) address is the address carried by the network device when it is produced and leaves the factory. The length is 48 bits and is used to identify the network device; the MAC addresses of different network devices are different. [0003] The process of learning the MAC address of the switch can be as follows: the user sends the source MAC address (Source Address; hereinafter referred to as: SA) from port 1 to MAC B, the destination MAC address (Destination Address; hereinafter referred to as: DA) to MAC A, and the virtual local area network (Virtual Local Area Network; hereinafter referred to as: VLAN) is a message of 1, the switch learns the SA of the message, and est...

AI Technical Summary

Problems solved by technology

When different keyword sets correspond to the same Hash index value, it will cause Hash conflicts

For the MAC address forwarding table, when a Hash conflict occurs, the corresponding MAC address forwarding table cannot be learned, which will lead to forwarding failure, which will cause users to be unable to access the Internet or the network speed is very slow

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