Method and device for reducing scale of media access control (MAC) address table

A MAC address table and medium access control technology, applied in the field of reducing the scale of the MAC address table of the medium access control, can solve the problems of the large scale of the MAC address table and the reduction of the scale of the MAC address table of the medium access control, etc., and achieve the reduction of the scale of the MAC address table, The effect of reducing the number of MAC addresses

Inactive Publication Date: 2011-08-03
BEIJING HUAWEI DIGITAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Embodiments of the present invention provide a method and device for reducing the scale of the MAC address table of the medium access control, and solve the problem of excessively large scale of the MAC address table in the current communication network

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  • Method and device for reducing scale of media access control (MAC) address table
  • Method and device for reducing scale of media access control (MAC) address table
  • Method and device for reducing scale of media access control (MAC) address table

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Embodiment Construction

[0023] The implementation process of the present invention will be described below in combination with specific embodiments.

[0024] The embodiment of the present invention divides the network segment of the MAC address, and performs MAC address learning and forwarding according to the network address, thereby reducing the scale of the MAC address table.

[0025] An embodiment of the present invention proposes a method for reducing the size of the MAC address table aiming at the problems existing in the MinM and PBB-TE technologies widely used at present, and the method is mainly realized by network segment division. The currently used MAC address has a length of 48 bits. On this basis, this embodiment introduces the concept of an address mask, and divides the 48-bit MAC address into a network address and a host address. The length of the network address and the host address depends on the mask. Length, address learning is only performed on the network address on the Ethernet...

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Abstract

The invention relates to the field of communication, in particular relating to a method and device for reducing the scale of a media access control (MAC) address table. The method comprises the following steps: carrying out and operation on the target MAC address of a received Ethernet message and a preset mask so as to obtain the target network address of the target MAC address; inquiring the MAC address table according to the target network address of the received Ethernet message so as to determine whether the target network address of the Ethernet message is inquired in the MAC address table; if the target network address of the Ethernet message is inquired in the MAC address table, forwarding the Ethernet message according to an inquired discharge interface; and if the target network address of the Ethernet message is not inquired in the MAC address table, broadcasting the target MAC address of the Ethernet message on all the interfaces except the interface on which the Ethernet message is received, and adding the target MAC address of the Ethernet message and the interface on which the Ethernet message is received to the MAC address table.

Description

technical field [0001] The invention relates to the communication field, in particular to a method and a device for reducing the scale of a medium access control MAC address table. Background technique [0002] Ethernet technology is increasingly favored by operators in the field of MAN. However, Ethernet technology born in LAN has several important defects, which limit its large-scale application in MAN. The main defect is the Media Access Control (MAC) address learning mechanism of Ethernet technology. A large number of nodes in the metropolitan area network cause Ethernet devices to learn a large number of MAC addresses, which greatly increases the number of Ethernet devices. Implementation cost and implementation difficulty. Contents of the invention [0003] Embodiments of the present invention provide a method and device for reducing the scale of the MAC address table of the medium access control, so as to solve the problem of excessively large scale of the MAC add...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/12H04L12/56H04L45/74
CPCH04L61/103H04L2101/695
Inventor 雷奕康张瑞陈艺彪
Owner BEIJING HUAWEI DIGITAL TECH
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