MAC (Media Access Control) address routing management controller, system and control method

Abstract

The invention discloses an MAC (Media Access Control) address routing management controller, an MAC address routing management system and an MAC address routing control method, which are characterized in that a plurality of switching ports receive data frames, analyze source MAC addresses and store the addresses and corresponding port numbers of the source MAC addresses; reading the addresses in sequence to perform Hash calculation; and performing address learning and aging according to a hash calculation result and the like, and writing a learning result into a routing table. After receiving the data frame, a plurality of exchange ports analyze a destination MAC address and transmit the destination MAC address to a destination MAC hash module to realize hash calculation; the target MAC address search module polls a plurality of calculation results, when it is polled that a certain target MAC hash calculation is completed, read access is conducted on two dual-port RAMs of a routing table at the same time according to the corresponding hash calculation result, after access is completed, data returned by the routing table is latched, and polling continues to be conducted on the calculation results of the target MAC hash module; and each port corresponds to one routing analysis control module, and the routing table data latched by the destination MAC address lookup module is analyzed and compared to obtain a routing result corresponding to the destination MAC.

Description

technical field [0001] The invention belongs to the field of Ethernet communication, and relates to a MAC address routing management controller, a system and a control method. Background technique [0002] In the field of Ethernet communication, packet routing management through MAC addresses is an important way for Ethernet to control switching. Routing management includes two steps: learning MAC address to establish routing table and looking up MAC table to obtain routing information. [0003] The MAC address learning described in progressive MAC address learning (Chinese patent CN105376154B) requires the participation of the processor, and the construction, storage and maintenance of the MAC table are realized through software; a method, device and system for MAC address learning (Chinese patent CN102143068B) introduction The upper layer software completes the learning method of MAC address by analyzing ARP message; address learning. [0004] The relevant patent result...

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the shortcomings of the above-mentioned prior art, the object of the present invention is to provide a MAC address routing management controller, system and control method, aiming at solving the problem that the prior art cannot realize the process of MAC address learning and MAC address search at the same time, and cannot Effectively avoid the defective technical problem of access conflict caused by address lookup and address learning at the same time

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