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Method and system for protecting multicast service

A multicast service and multicast technology, applied in the communication field, can solve the problems of low utilization rate of protection paths and large demand of protection paths, and achieve the effect of cost saving

Inactive Publication Date: 2014-07-02
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a multicast service protection method and system to solve the problem that the multicast path protection method in the related art requires a large amount of protection paths and the utilization rate of the protection paths is not high

Method used

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  • Method and system for protecting multicast service
  • Method and system for protecting multicast service
  • Method and system for protecting multicast service

Examples

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example 1

[0041] Combine the following Figure 5 To describe the processing process of the multicast service protection method provided by the embodiment of the present invention through specific examples, including the following steps:

[0042] Step 501, there are two existing multicast paths, namely multicast path 1 (100-multicast path 1-101, 102, 103) and multicast path 2 (120-multicast path 2-104, 105, 106) , And configure a shared protection path (110-protection path-101, 102, 103, 104, 105, 106) for the two multicast paths.

[0043] Step 502, on each multicast path, the root nodes 100 and 120 periodically send connectivity detection messages to the respective leaf nodes 101, 102, 103 and 104, 105, 106 along the multicast path. When any one of the leaf nodes has not received the connectivity detection message sent by the root node within a certain period of time, a fault notification message (ie, a fault notification message) is generated and sent to its root node 100 or 120.

[0044] In...

example 2

[0054] Picture 9 It is a detailed structural block diagram of the multicast service protection system according to Example 2 of the present invention, such as Picture 9 As shown, the system includes:

[0055] Connectivity detection module: includes a connectivity message sending unit, which can be located at the root node of the multicast path, and is used to send connectivity detection messages to leaf nodes along the multicast path, and also includes a leaf node judgment unit, which can be located at the leaf node, It is used to feed back a connectivity failure notification message to the root node of the multicast path when the connectivity detection message is not received within a fixed time.

[0056] Protection service selection and notification module: includes a protection service selection unit, which can be located at the root node of the protection path, and is used to select one of the multicast services with the highest priority according to the priority of multiple...

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Abstract

The invention discloses a multicast service protection method and system. The method includes: determining that one or more multicast paths in the multicast paths protected by the protection path fail; switching the multicast service transmitted on the predetermined multicast path transmission on the protection path, wherein the predetermined multicast path is the multicast path with the highest priority for the multicast service transmitted in one or more multicast paths. The invention saves the overhead of protecting resources.

Description

Technical field [0001] The invention relates to the field of communications, and in particular to a method and system for protecting multicast services. Background technique [0002] With the continuous development of IPTV and other multicast services, multicast services will become the main business of network operators in the future. Therefore, it is of great significance to provide protection for multicast services. [0003] In the related art, the root node of the multicast path generally sends a connectivity detection message to its leaf nodes to detect whether the multicast branch path is faulty. When the leaf node on a branch path has not received the connectivity detection message sent by the root node within a fixed time, it will feed back a connectivity failure notification message to the root node so that the root node can trigger the end-to-end path switch And protection. In the prior art, there is a one-to-one correspondence between multicast paths and their protect...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/711H04L12/18H04L45/247
CPCH04L41/0668
Inventor 刘国满
Owner ZTE CORP
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