System, apparatus and method for obtaining multicast topology information

A topology information and multicast technology, which is applied in the branch offices to provide special services, transmission systems, digital transmission systems, etc. information and other issues, to reduce maintenance costs and difficulties, facilitate management, and improve reliability.

Inactive Publication Date: 2011-04-20
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Unable to read related information of multicast, such as multicast protocol, multicast interface information, neighbor information, etc., unable to obtain topology information of network multicast, thus unable to monitor and manage network multicast

Method used

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  • System, apparatus and method for obtaining multicast topology information
  • System, apparatus and method for obtaining multicast topology information
  • System, apparatus and method for obtaining multicast topology information

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Referring to Fig. 1, an embodiment of the present invention provides a method for obtaining multicast topology information, which specifically includes:

[0035] S101: The node sends multicast information to the server.

[0036] Among them, the node can send the multicast information to the server regularly, and also can send the multicast information to the server when the preset condition is satisfied, such as sending when joining a multicast group, sending when leaving a multicast group, and so on. When the node is a multicast router, the multicast information specifically includes multicast protocol information, multicast interface information, IGMP (Internet Group Management Protocol, Internet Group Management Protocol) information, neighbor information, and the like. In special cases, the multicast information sent by the node includes other information besides the above information. For example, when the node is a BSR (BootStrap Router, bootstrap router) device,...

Embodiment 2

[0055] Referring to Fig. 2, an embodiment of the present invention provides a device for obtaining multicast topology information, which specifically includes:

[0056] A receiving module 201, configured to receive multicast information;

[0057] The multicast path confirmation module 202 is used to confirm the multicast path between nodes in the unicast topology information according to the unicast topology information and the multicast information received by the receiving module 201;

[0058] The topology information determination module 203 is configured to determine multicast topology information according to the multicast path confirmed by the multicast path confirmation module 202 .

[0059] Wherein, referring to FIG. 3, the multicast path confirmation module 202 may specifically include:

[0060] The first judging unit 2021 is configured to, for any two adjacent nodes in the unicast topology information, judge whether the two interfaces corresponding to the path betwe...

Embodiment 3

[0073] Referring to Fig. 7, an embodiment of the present invention provides a system for obtaining multicast topology information, which specifically includes:

[0074] Node 301, configured to send multicast information;

[0075] The server 302 is configured to receive the multicast information sent by the node 301, confirm the multicast path between nodes in the unicast topology information according to the unicast topology information and the multicast information, and determine the multicast topology information according to the multicast path.

[0076] Further, referring to FIG. 8, the foregoing node 301 further includes:

[0077] Comparison module 3011, used to compare whether the sent multicast information and the multicast information to be sent are the same, if they are the same, then notify the server 302 that the multicast information has not changed; otherwise, change the multicast information to be sent The multicast information is sent to the server 302 .

[007...

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PUM

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Abstract

The invention discloses a method, a device and a system for obtaining multicast topological information, which belongs to the technical field of multicasts. The method comprises receiving multicast information from a node, confirming a multicast route between middle nodes of the multicast topological information according to unicast topological information and the multicast information, and confirming the multicast topological information according to the multicast route. The device comprises a receiving module, a multicast route confirming module, a topological information confirming module.The system comprises the node and a server. The invention combines own unicast topological information to confirm the multicast route through receiving the multicast information, thereby the multicast topological information is obtained, which is convenient for a user to manage multicast services and provides great convenience for monitoring a network, changes of the network can be known in time,risk which is existed in the network is confirmed, the network stability is increased, and the cost and difficulty for maintaining are lowered.

Description

technical field [0001] The invention relates to the field of multicast technology, in particular to a method, device and system for acquiring multicast topology information. Background technique [0002] IP multicast technology realizes efficient point-to-multipoint data transmission in the IP network, and uses the characteristics of multicast to provide various services conveniently, including online live broadcast, Internet TV, distance education, teleconferencing, telemedicine, real-time video conferencing, etc. etc., some ISPs (Internet Service Providers, Internet Service Providers) run multicast between domains to exchange multicast routing and data, and then realize more complex multicast value-added services. The multicast service has also been promoted and popularized along with the market potential and demand, and the multicast network has gradually developed from miniaturization and simplification to large-scale and integrated development. [0003] The current mul...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/18H04L12/56H04L12/24H04L29/06H04L45/16
Inventor 郭亮
Owner HUAWEI TECH CO LTD
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