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A method of controlling the pre-aging of learned mac addresses

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: 2011-11-30
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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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  • A method of controlling the pre-aging of learned mac addresses
  • A method of controlling the pre-aging of learned mac addresses

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Embodiment Construction

[0020] 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.

[0021] 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.

[0022] Such as figure 1 as shown, figure 1 A schematic diagram of the MAC address state machine relationship and migration of the method described in the embodiment of the present invention;

[0023] When the switch hardware finds a MAC address that is not in the hardware MAC address tabl...

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Abstract

The invention discloses a method for controlling the pre-aging of a learned MAC address, which is configured with a software MAC address table and a hardware MAC address table. The method includes: when the switch hardware finds a MAC address that does not exist in the hardware MAC address table , report the MAC address to the switch software; the switch software searches in the software MAC address table, if the MAC address is not retrieved, the MAC address is defined as a new MAC address, and the new MAC address is made Action selection of pre-learning, learning or discarding; otherwise, corresponding processing is performed on the MAC address according to the pre-learning, learning or pre-aging status of the MAC address. The invention realizes the seamless connection of the aging learning of the MAC addresses by allowing the frequently used MAC addresses to be learned first after being forced to age, and the software and hardware resources to be obtained first, thereby improving the stability and 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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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/56H04L29/12H04L45/02
Inventor 罗友松
Owner ZTE CORP