Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method and device for enhancing reliability of multicast source

A multicast source and reliability technology, applied in branch offices providing special services, data exchange details, digital transmission systems, etc. Guaranteed uninterrupted, fast protection switching, and enhanced reliability

Inactive Publication Date: 2010-12-01
CHINA UNITED NETWORK COMM GRP CO LTD
View PDF4 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] 1. The receiving terminal CPE is required to support IGMPv3: the multicast receiving terminal of the IPTV system, such as STB (Set Top Box, set-top box), must have the limitation of supporting IGMPv3;
[0008] 2. The receiving terminal CPE does not support IGMPv3, and SSM Mapping serviceability problem: In SSM technology, if the receiving terminal CPE does not support IGMPv3, it is necessary to configure SSM Mapping in all BRAS (Broadband Remote Access Server, broadband remote access server) to select a specific source IP, otherwise the receiving terminal CPE will receive two media streams, which not only increases the configuration complexity of the BRAS, but also requires manual adjustment of the Mapping configuration after a fault occurs, resulting in extremely poor serviceability
[0010] Multicast source flow type failure cannot be protected: AnyCast Source technology relies on sensing routing convergence to switch the backup multicast source to provide services, but the routing table cannot detect flow type failures such as multicast source flow failures and service hangs. The next business will be interrupted and cannot be switched and automatically restored

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method and device for enhancing reliability of multicast source
  • Method and device for enhancing reliability of multicast source
  • Method and device for enhancing reliability of multicast source

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0042] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments, but not as a limitation of the present invention.

[0043] Such as image 3 As shown, it is an implementation flow chart of enhancing the reliability of multicast sources in the present invention, which describes a method for enhancing the reliability of multicast sources. The same multicast flow has two multicast source servers and their respective superior routers DR Establish a communication link between the two multicast source servers (active multicast source server, standby multicast source server) to configure the same source address for forwarding, the multicast source server checks whether the multicast stream can be sent normally, when In the event of failure, the active multicast source server will force the link to fail, and after the network routing converges, the standby multicast source server will provide the multicast stream. ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a method and a device for enhancing the reliability of a multicast source. The method comprises the following steps of: 1, establishing communication links between a main multicast source server and a standby multicast source server for the same multicast flow and respective upper routers, wherein the main multicast source server and the standby multicast source server are configured with the same source address and forward the multicast flow to the respective upper routers; and 2, detecting whether the multicast flow can be normally transmitted by using the main multicast source server, when a fault happens, forcing the communication link to fail by using the main multicast source server, and after network routers are converged, providing a multicast data flow by using the standby multicast source server. The method and the device can provide quick protective switching due to the exception caused by multicast source server flow type fault so as to ensure the non-interruption of IPTV service.

Description

technical field [0001] The invention relates to multicast source reliability technology, in particular to a method and device for enhancing multicast source reliability. Background technique [0002] IPTV (Internet Protocol TV or Interactive Personal TV, interactive network TV) business uses IP multicast technology to push channel program streams to users. This method of carrying IPTV video data streams based on IP multicast packets has great impact on the multicast source. Reliability requirements are high, and when the multicast source server equipment fails or the link fails, it will affect the normal development of IPTV services. [0003] Due to the introduction of multicast source reliability technology, IPTV systems usually use two technologies based on PIM-SSM (Protocol Independent Multicast-Source Specific Multieast, Protocol Independent Multicast-Specific Source Multicast) and AnyCast Source to realize multicast source backup. PIM-SSM forwards the same video stream...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): H04L12/56H04L12/26H04L12/18H04L45/28
Inventor 陈雷吴明秋陈小斌徐丹
Owner CHINA UNITED NETWORK COMM GRP CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products