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Method for processing multicast message by router

A multicast message and router technology, applied in the direction of digital transmission system, data exchange network, electrical components, etc., can solve the problems of occupying CPU resources and low multicast performance, so as to reduce load, improve multicast performance, The effect of increasing speed

Active Publication Date: 2012-06-20
李征宇
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because in this way, all multicast packets sent to wired user terminals or wireless user terminals must be processed by the multicast packet processing module, and the processing process is processed by software, so it will take up A large number of CPU resources, resulting in low multicast performance

Method used

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  • Method for processing multicast message by router
  • Method for processing multicast message by router
  • Method for processing multicast message by router

Examples

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Embodiment Construction

[0012] See figure 1 , Is an application environment and structure diagram of a router with SWITCH ASIC in an embodiment of the present invention. The upstream of the router 20 is in communication connection with the multicast server 10 for receiving packets from the multicast server. The multicast server is used to send a multicast message to a router, and the multicast message includes a destination MAC address, which is used to identify the address of a multicast group that needs to receive the multicast message, where one multicast group corresponds to one interface The interface corresponds to multiple user terminals that need to receive the multicast message. The multiple user terminals may all be wired user terminals, or all wireless user terminals, and may also include some wired user terminals and some wireless user terminals. User terminal.

[0013] In this embodiment, the router 20 includes a MAC address table 2020 and a multicast packet forwarding table 2040, which ar...

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Abstract

The invention relates to a method for processing a multicast message by a router. The router comprises a special switching integrated circuit, a multicast message processing module, a media access control address table, a multicast message forwarding table and a central processing unit. The method comprises the following steps of: receiving a new message; acquiring a plurality of port numbers corresponding to a destination media access control address of the new message according to the media access control address table; determining types of ports corresponding to the plurality of port numbers; if the plurality of port numbers all correspond to wired ports, sending the new message to a wired user terminal according to the port numbers; if the plurality of port numbers all correspond to wireless ports, acquiring an interface corresponding to a destination network protocol address of the new message according to the multicast message forwarding table; and forwarding the new message to a wireless user terminal corresponding to the interface. The method for processing the multicast message by the router improves the multicast performance of the router greatly.

Description

Technical field [0001] The invention relates to a router, and in particular to a method for a router to process multicast messages. Background technique [0002] In recent years, with the rapid development of information technology, on the Internet, multimedia services such as streaming media, video conferencing, and video-on-demand network applications have increased greatly, making the original unicast method of point-to-point transmission no longer suitable for such special services because of the server A copy of the same IP message must be provided for each receiver, which will inevitably consume a lot of resources. Therefore, the multicast technology with a single-point-to-multipoint transmission method will become more and more popular, and the sender will be simultaneously to many When a receiver transmits the same message, only one copy of the same message is required, which improves the efficiency of message transmission. [0003] In order to be able to forward multicast...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/56H04L29/12H04L45/16
Inventor 柏杨闵振发
Owner 李征宇
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