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Multicast protection method and device

A multicast and multicast group technology, applied in the field of communication, can solve the problem that the switching performance of multicast service reliability cannot meet the needs of multicast group users, and achieve the effect of saving bandwidth and high network security

Inactive Publication Date: 2011-10-05
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The problem with such a protection mechanism is that the switching time of the active and standby links must include the time required for the multicast protocol interaction process, resulting in switching performance and reliability of multicast services that cannot meet the growing needs of multicast group users

Method used

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  • Multicast protection method and device

Examples

Experimental program
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no. 1 example

[0038] In the first embodiment of the present invention, the connection relationship between the upstream device, the downstream device, the multicast source device and the user is as follows: figure 1 As shown in , a protection channel is configured between the upstream device and the downstream device. The downstream device can establish a protection channel with multiple upstream devices. The protection channel includes the active link and the standby link, and the active and standby links of the protection channel Configure detection mechanisms such as OAM / CFM / BFD to detect link or port faults.

[0039] In this embodiment, the method for realizing multicast protection, such as figure 2 shown, including the following specific steps:

[0040] In step S1, both the active and standby link ports in the upstream device are used as multicast group users. Step S1 specifically includes:

[0041] S11, configuring a multicast querier on the upstream device for the active and stan...

no. 2 example

[0048] In the second embodiment of the present invention, a device for realizing multicast protection is configured with active and standby links between the upstream device and the downstream device, such as image 3 As shown in , because the process of switching the active and standby links is implemented on the upstream device, the device is located in the upstream device and specifically includes the following components:

[0049] 1) A multicast group user generation module, configured to use both the active and standby link ports in the upstream device as multicast group users. The multicast group user generation module specifically includes:

[0050] The configuration sub-module is used to configure the multicast query sub-module on the active and standby links on the upstream device.

[0051] The multicast query sub-module is used to receive the multicast join message transparently transmitted from the downstream device on both the active and standby link ports when th...

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Abstract

The invention discloses a multicast protection method and a multicast protection device. Ports of a main link and a standby link in upstream equipment are all taken as multicast group users, different message packaging states are configured for the ports of the main and standby links, and multicast data messages are normally transmitted to the upstream equipment without influence. In the method and the device, switching between the main and standby links is performed by changing the message packaging states of the ports of the main and standby links, and the rapid protection of a multicast service is realized; and the method and the device have the advantages of bandwidth saving, high network security and the like.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a method and device for realizing multicast protection. Background technique [0002] Multicast technology effectively solves the problem of single-point transmission and multi-point reception, realizes efficient data transmission from point to multipoint in the network, can greatly save network bandwidth and reduce network load, and can conveniently provide some New value-added services. [0003] As the multicast technology is more and more widely used in the network, when the network fails, higher requirements are put forward for the reliability of the multicast service. Now common methods to implement multicast protection in the network, under normal circumstances only the main link is valid, as a multicast group user, through OAM (Operation Administration and Maintenance, operation, management, maintenance) / CFM (Connectivity Fault Management, link After detection te...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/24H04L12/18
CPCH04L45/22H04L45/28H04L41/0663H04L12/185H04L12/1863H04L45/16
Inventor 邓涛鸿
Owner ZTE CORP
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