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Multicast access equipment and method

A technology for accessing equipment and equipment, which is applied in the field of network communication, can solve problems such as unsupported by the user end, and achieve the effects of saving development costs, improving service quality, and reducing complexity

Active Publication Date: 2009-01-14
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But at present, a large number of users have not upgraded to this version, that is to say, the client does not support (S, G) joining, only supports (*, G) joining

Method used

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  • Multicast access equipment and method
  • Multicast access equipment and method

Examples

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Embodiment Construction

[0043] The present invention provides a multicast access device and method. The access device stores the group address carrying the program and the corresponding multicast source information that is allowed to be received; when the access device receives a user's group joining request, and receives When the SSM-MAPPING function is enabled on the interface of the group join request, query the stored group address of the program, if there is a group address of the program that matches the group address in the group join request, but corresponds to the matched group address If the information of the multicast source that is allowed to be received is empty, the access device sends a join message that includes the group address but does not include the multicast source information to the core network.

[0044] This embodiment provides a multicast access device, such as figure 2 As shown, it includes: program receiving module, IGMP (group management protocol) module, SSM-MAPPING mo...

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PUM

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Abstract

The invention provides multicast access equipment and a method, comprising: storing group address of burdening programs and information of corresponding multicast source which is allowable to receive, and inquiring the group address of burdening the programs when receiving the interface of the group adding request to cause the energy source special multicast maps the function, if there is provided with the group information of burdening the programs matching with the group information in the group adding request, but the information of the multicast resource which is allowable to receive corresponding to the matching group address is empty, the access device transmits the adding information which includes the group address but does not include the multicast source information to a core network. According to the invention, the multicast method of the source special multicast / source irrelevant mode coexistence is realized, implement complexity of the access device is reduced, developing cost is saved, service quality of the multicast operation is also advanced, also provided is a function of safe guard to successfully prevent dangerous multicast source.

Description

technical field [0001] The invention relates to the technical field of network communication, more specifically, a multicast method in which a source-specific mode and a source-independent mode coexist, and an access device for realizing the multicast method. Background technique [0002] Multicast refers to a point-to-multipoint communication form in which the source sends information to a certain subset of all network nodes. There are three main entities in its application, such as figure 1 Shown: multicast router, multicast source, multicast receiver (user). From the perspective of data forwarding, the multicast router is mainly responsible for forwarding multicast data packets, the multicast source is responsible for sending multicast data packets to the network, and the multicast receiver is responsible for receiving multicast data packets. The IGMP (IPv4) / MLD (IPv6) protocol is run before the multicast router and the multicast receiver, the user runs the host-side pro...

Claims

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Application Information

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IPC IPC(8): H04L12/18H04L12/56H04L29/06H04L29/12H04L45/16
Inventor 沈洋
Owner ZTE CORP
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