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Method for building MAC (Media Access Control) address table and provider edge device

A MAC address table, MAC address technology, applied in the field of operator edge equipment, MAC address table establishment

Active Publication Date: 2011-08-24
BEIJING XINWANG RUIJIE NETWORK TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Embodiments of the present invention provide a method for establishing a MAC address table and an operator's edge device to solve the problem in the prior art that PEs in a VPLS network need a large-capacity MAC address table

Method used

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  • Method for building MAC (Media Access Control) address table and provider edge device
  • Method for building MAC (Media Access Control) address table and provider edge device
  • Method for building MAC (Media Access Control) address table and provider edge device

Examples

Experimental program
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Embodiment 1

[0031] Figure 4 It is a flow chart of the method for establishing a MAC address table provided in Embodiment 1 of the present invention, specifically including:

[0032] In step S401, the PE receives the service message of the user through the PW connected to it.

[0033] In a VPLS network, the virtual line between two PEs is called a PW, on which layer 2 packets of users are transmitted, and different PWs can be distinguished by MPLS (Multi-Protocol Label Switching, Multi-Protocol Label Switching) labels.

[0034] Step S402, judging whether the service message received through the PW is a specified type of message, and the specified type of message is a broadcast message of a non-gratuitous ARP message, an unknown listcast message or a multicast message, wherein the non-gratuitous ARP message The broadcast packets include all broadcast packets except gratuitous ARP packets. The destination MAC address in the unknown listcast packet is a unicast MAC address, and the destinat...

Embodiment 2

[0058] Figure 9 Shown is a schematic structural diagram of an H-VPLS network using a hierarchical topology model, in which PEs are distinguished, including network operator edge equipment N-PE and user-oriented operator edge equipment U-PE, N-PE is PEs at the core edge of the backbone network provide VPLS transparent transmission services between core networks. All N-PEs in a LAN are interconnected in pairs. Access the aggregation device of the VPN.

[0059] Among them, the pseudowire between two N-PEs is called Hub-PW, and the pseudowire between N-PE and U-PE is called Spoke-PW. Figure 9 It can be seen from the figure that the U-PE is similar to the PE in the VPLS network of the fully interconnected topology model, both of which have both the AC interface and the PW interface. Therefore, in this embodiment 2, the U-PE can use the same The solution for establishing the same MAC address table for the PEs, wherein the Spoke-PW is equivalent to the PW in the above-mentioned e...

Embodiment 3

[0074] Based on the same inventive concept, according to the method for establishing a MAC address table provided by the above-mentioned embodiments of the present invention, correspondingly, Embodiment 3 of the present invention also provides an operator edge device, the structural diagram of which is as follows Figure 11 shown, including:

[0075] The first receiving unit 1101 is configured to receive the first service message through the pseudowire PW connected to the PE;

[0076] The establishment unit 1102 is configured to cancel the establishment of the address entry of the source MAC address of the first service message when it is determined that the first service message is a specified type of message, and the specified type of message is unknown Broadcast packets of listcast packets, multicast packets, or non-gratuitous address resolution protocol ARP packets.

[0077] Preferably, the establishing unit 1102 is further configured to determine that the first service m...

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Abstract

The invention discloses a method for building an MAC (Media Access Control) address table and a provider edge device. In the method, a PE (Provider Edge Device) receives a first service message by a PW (Pseudo Wire) connected with the PE; when the first received service message is confirmed to be a specific-type message, the building of the address table entry of the source MAC address of the first service message is cancelled, wherein the specific-type message is an unknown unicast message, a multicast message or the broadcasting message of a non-free ARP (Address Resolution Protocol) message. According to the scheme provided by the embodiment of the invention, the amount of the address table entries built by the PE is reduced so as to reduce the volume of the MAC address table.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a method for establishing a MAC (Media Access Control, Media Access Control) address table and an operator edge device. Background technique [0002] With the development of data communication technology and the emergence of cloud computing / distributed computing, computing power has also become a commodity. For example, it can be sold externally based on virtual machines. At this time, the data center is the physical carrier of such commodities. A data center (DC for short) is a facility consisting of computing systems, storage systems, communication systems, network equipment, environmental control systems (such as cooling systems and fire protection systems), security systems and other components. And by providing a large number of redundancy solutions to improve the reliability of the data center, such as power supply redundancy, communication connection redunda...

Claims

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Application Information

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IPC IPC(8): H04L12/56H04L29/12
Inventor 陈兴斌吴治国
Owner BEIJING XINWANG RUIJIE NETWORK TECH CO LTD
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