Multicast control method, routing equipment and multicast system

A control method and routing technology, applied in the field of network communication, can solve problems such as affecting performance and increasing network burden.

Active Publication Date: 2012-08-01
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this solution can avoid the generation of double traffic in advance, in the shared network segment without repeated multicast data, periodically sending useless Assert messages will affect performance and increase the network burden

Method used

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  • Multicast control method, routing equipment and multicast system
  • Multicast control method, routing equipment and multicast system
  • Multicast control method, routing equipment and multicast system

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Embodiment Construction

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0028] In order to avoid the defect of the same multicast data transmission on a shared network segment, the embodiment of the present invention provides a multicast control method, a routing device and a multicast system.

[0029] The embodiment of the present invention provides a multicast control method, such as image 3 As shown, the method may include:

[0030] 301. The second routing device on the shared network segment receives a first join request per...

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Abstract

The embodiment of the invention discloses a multicast control method, routing equipment and a multicast system. The method comprises the following steps that: second routing equipment on a shared network segment receives a first join request periodically sent by first routing equipment on the shared network segment, wherein the request carries reverse path forwarding (RPF) upstream neighbor information of the first routing equipment; when the second routing equipment determines that the second routing equipment itself is not an RPF upstream neighbor of the first routing equipment but is downstream routing equipment in the shared network segment, a second join request sent by downstream receiving equipment is received and then is not forwarded to an RPF upstream neighbor that is obtained according to unicast routing and is used for receiving the second join request temporarily; when the first join request is received again or a departure request sent by the first routing equipment is received, the RPF upstream neighbor that is obtained by the second routing equipment itself according to the unicast routing and is used for receiving the first join request is arranged as the RPF upstream neighbor that is carried in the first join request and the second join request is sent to the RPF upstream neighbor.

Description

technical field [0001] The present invention relates to the technical field of network communication, and more specifically, relates to a multicast control method, routing equipment and a multicast system. Background technique [0002] With the rapid development of the Internet, IP (Internet Protocol, a protocol for interconnection between networks) multicast technology has realized efficient data transmission from point to multipoint in the IP network. Because multicast technology can effectively save bandwidth, control network traffic, reduce server load, and reduce network load, it is widely used in real-time data transmission, multimedia conferences, and many other aspects. [0003] The IP multicast protocol includes the protocol between routers and receivers and the protocol between routers. The combination of the two is used to build a multicast forwarding tree from a multicast source to a multicast data receiver. The protocol between the router and the receiver host ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/56
CPCH04L45/16H04L45/00
Inventor 范树学陈重赵大赫徐旭
Owner HUAWEI TECH CO LTD
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