Load balancing method for multicast data stream, route equipment and network system

A technology of load balancing and multicast data, applied in the field of multicast, which can solve the problems of unbalanced load of multicast data flow and heavy load of DR at the receiving end of multicast data, etc.

Inactive Publication Date: 2010-07-28
RUIJIE NETWORKS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0015] The embodiment of the present invention provides a load balancing method and network equipment for multicast data streams, which are used to solve the unbalanced load of multicast data streams and the DR load of the multicast data receiving end caused by the DR mechanism in the existing PIM-SM protocol oversized problem

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  • Load balancing method for multicast data stream, route equipment and network system
  • Load balancing method for multicast data stream, route equipment and network system
  • Load balancing method for multicast data stream, route equipment and network system

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Embodiment Construction

[0037] The specific implementation manners of a multicast data flow load balancing method, routing device and network system provided by the present invention will be described in detail below with reference to the accompanying drawings.

[0038] In the method for load balancing of a multicast data flow provided by an embodiment of the present invention, the host of the multicast data receiver (hereinafter collectively referred to as a multicast data receiving device) is connected to a shared network composed of a plurality of routing devices, through Distribute the last station of multiple multicast service distribution trees (shared trees) to each routing device in the shared network connected to the multicast data receiving device to achieve load balancing of multicast data.

[0039] Such as image 3 As shown, the method for load balancing of the multicast data flow provided by the embodiment of the present invention includes the following steps:

[0040] S301. The multica...

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Abstract

The invention discloses a load balancing method for a multicast data stream, route equipment and a network system. The method includes the steps of calculating information in IGMP access message by a set hashing algorithm and confirming the first route equipment as the only one for processing the IGMP access message in a shared network when each route equipment in the shared network connected with multicast data receiving equipment receives the IGMP access message transmitted by the multicast data receiving equipment; each route equipment confirms whether to be the first one, and processes the IGMP access message if being the first one and ignores the IGMP access message if not being the first one. The IGMP access message of every multicast service transmitted by the multicast data receiving equipment is possibly processed respectively by different route equipment in the shared network, which avoids the problems of unbalanced load of the multicast data stream and overlarge load DR at the multicast data receiving end due to a DR mechanism of the present PIM-SM multicast protocol.

Description

technical field [0001] The invention relates to the field of multicast technology, in particular to a load balancing method for multicast data streams, routing equipment and a network system. Background technique [0002] Multicast technology is a point-to-multipoint network protocol (Internet Protocol, IP) transmission technology that allows one or more senders (multicast sources) to simultaneously send a single data packet to multiple receivers. The multicast source sends data packets to a specific multicast group, and only the member hosts belonging to the multicast group can receive the data packets. The basic idea of ​​multicast technology is to copy multicast data at the place closest to the receiver, which can greatly save the network bandwidth during a large amount of repeated data transmission. Multicast technology is one of the main routing technologies for multimedia data communication. [0003] The Protocol Independent Multicast (PIM) protocol is a widely used m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/56H04L12/18H04L12/803
Inventor 黄墀晖陈国鹏
Owner RUIJIE NETWORKS CO LTD
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