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Method for realizing multicast between different IP domains and boundary gateway router

A border gateway and router technology, applied in the network field, can solve the problems of inability to support large-scale multicast applications and low performance, and achieve the effect of sharing multicast resources.

Inactive Publication Date: 2011-04-20
BEIJING XINWANG RUIJIE NETWORK TECH CO LTD
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  • Application Information

AI Technical Summary

Problems solved by technology

The main defect of the transponder method is that its performance is low and it cannot support large-scale multicast applications.

Method used

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  • Method for realizing multicast between different IP domains and boundary gateway router
  • Method for realizing multicast between different IP domains and boundary gateway router
  • Method for realizing multicast between different IP domains and boundary gateway router

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Embodiment Construction

[0034] 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 creative efforts fall within the protection scope of the present invention.

[0035] figure 1 A flow chart of a method for implementing multicast between different IP domains provided by an embodiment of the present invention, such as figure 1 As shown, the method includes at least:

[0036] Step 11, the border gateway router acquires multicast group information from each IP domain RP (Rendezvous Point, rendezvous point) router, and the multicast group information includes at least multicast source information and multicast receiver informa...

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Abstract

The invention relates to a method for realizing multicast between different IP domains and a boundary gateway router. The method at least comprises the steps that: the boundary gateway router acquires multicast group information from an RP router of each IP domain; when the presence of a cross-domain multicast group is acquired according to the multicast group information, and the boundary gateway router sends, via the RP router of the IP domain for a multicast source of the cross-domain multicast group, a joining group request for joining the cross-domain multicast group to the multicast source in order to join the cross-domain multicast group; the RP router of the IP domain for the multicast source forwards multicast data sent by the multicast source; the boundary gateway router receives the multicast data and converts a multicast source address in the multicast data into a target IP domain interface address on the boundary gateway router or a vacant address in a preset target IP domain address pool; a group address in the multicast data is converted into the group address of a target IP domain; and the multicast source address and the group address-converted multicast data are sent to multicast routers interconnected directly in the target IP domain.

Description

technical field [0001] The invention relates to network technology, in particular to a method for realizing multicast between different IP domains and a border gateway router. Background technique [0002] With the rapid development of IP technology, the next generation Internet based on IPv6, that is, IPv6 network or IPv6 domain, will appear to solve the problem of exhaustion of IPv4 network address resources caused by the continuous expansion of Internet applications. [0003] In the process of transition from IPv4 network to IPv6 network, IPv4 network and IPv6 network coexist, resulting in compatibility problems between the two. For example, for multicast technology, when both IPv4 and IPv6 networks participate in a multicast group, it is necessary to consider how to send multicast data sent by a multicast source in one domain to another IP domain. The IP domain here refers to an IPv4 network (IPv4 domain) or an IPv6 network (IPv6 domain). [0004] In the prior art, the...

Claims

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Application Information

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IPC IPC(8): H04L12/18H04L12/56H04L29/12H04L45/16
Inventor 姚辉林东豪翁石强
Owner BEIJING XINWANG RUIJIE NETWORK TECH CO LTD
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