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Method for controlling learning MAC address preaging

A technology of MAC address and MAC address table, applied in the field of controlling learning MAC address pre-aging, can solve the problem of MAC address aging, unable to re-learn the address table, etc., to achieve the effect of improving stability and reliability

Inactive Publication Date: 2008-07-30
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the above analysis, the present invention aims to provide a method for controlling the pre-aging of learned MAC addresses to solve the problem of aging of MAC addresses that should be learned when MAC address table resources are insufficient or MAC address attacks occur in the prior art. cannot relearn the address table after

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  • Method for controlling learning MAC address preaging

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Embodiment Construction

[0019] Preferred embodiments of the present invention will be specifically described below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of the application and are used together with the embodiments of the present invention to explain the principles of the present invention.

[0020] The method described in the embodiment of the present invention needs to first configure the software MAC address table and the hardware MAC address table. The software MAC address table stores the MAC addresses in the pre-learning, learning and pre-aging states, and the hardware MAC address table stores the MAC addresses in the learning state. MAC address.

[0021] As shown in FIG. 1, FIG. 1 is a schematic diagram of the MAC address state machine relationship and migration of the method described in the embodiment of the present invention;

[0022] When the switch hardware finds a MAC address that is not in the hardware MAC address table, it re...

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Abstract

The invention discloses a MAC address preaging method for controlling study, which is provided with a software MAC address table and a hardware MAC address table, the method comprises the following steps that when a MAC address which is inexistent in the hardware MAC address table is found by an exchanger hardware, the MAC address is reported to the exchanger hardware; the exchanger software retrieves in the MAC address table, if the MAC address is not retrieved, the MAC address is defined into a new MAC address, and the pre-studying, studying or discarding action selection is performed to the new MAC address, otherwise, the MAC address is processed correspondingly according to the pre-studying, studying or presaging state of the MAC address. The invention realizes the ageing and studying seamless connection of the MAC address through ensuring that the commonly-used MAC address firstly studies and firstly obtains software and hardware resource after being aged enforcedly, so as to improve the stability and the reliability of the system.

Description

technical field [0001] The invention relates to the technical field of Ethernet switches, in particular to a method for controlling the pre-aging of learned MAC (Media Access Control) addresses. Background technique [0002] MAC address aging is an essential function of Ethernet switch bridges. Due to the limited capacity of address table resources, aging MAC addresses that have occupied address table resources but have not been used for a long time is an effective method for rationally utilizing address table resources. [0003] Generally, for systems with software and hardware learning, hardware aging, and hardware forwarding, and switch systems for software learning, software aging, and software forwarding, the aging time of MAC addresses can be automatically updated during forwarding to ensure that frequently used MAC addresses are not aged out. [0004] However, for switch systems with software learning, software aging, and hardware forwarding, since the aging time of ...

Claims

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Application Information

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IPC IPC(8): H04L12/56H04L29/12H04L45/02
Inventor 罗友松
Owner ZTE CORP
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