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Method and device for pruning forwarding path of multicast data and network equipment

A technology of multicast data and forwarding paths, applied in the field of communication, can solve the problem of large pruning processing delay, save network bandwidth resources, and shorten the pruning processing delay.

Active Publication Date: 2010-06-30
BEIJING ZHIGU TECH SERVICE
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  • Application Information

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Problems solved by technology

It can be seen that in the existing technology, in the Ethernet link, the pruning processing delay of the multicast data forwarding path in the same shared network segment is still relatively large

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  • Method and device for pruning forwarding path of multicast data and network equipment
  • Method and device for pruning forwarding path of multicast data and network equipment

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Embodiment Construction

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0026] figure 1 It is a flow chart of the pruning processing method of the multicast data forwarding path provided by the first embodiment of the present invention. Such as figure 1 The methods shown include:

[0027] Step 11, obtain the PIM neighbor list of each router that the shared network segment belongs to the same multicast group; This PIM neighbor list includes the PIM neighbor relationship of each router and the multicast data forwarding identifier ...

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Abstract

The invention provides a method and a device for pruning a forwarding path of multicast data and network equipment. The method comprises the steps of: acquiring a protocol-independent multicast neighbor list of all routers whose sharing network segments belong to the same multicast group, wherein the protocol-independent multicast neighbor list comprises protocol-independent multicast neighbor relationships of all the routers and forwarding identifications of the multicast data of all the routers, the forwarding identifications of the multicast data are used for determining whether forwarding the multicast data of the multicast group or not; and determining the number of downstream neighbor routers of any router according to the protocol-independent multicast neighbor relationships and pruning the forwarding path of the multicast data according to the number of the downstream neighbor routers of any router and the forwarding identifications of the multicast data of each downstream neighbor router of any router. The invention shortens the pruning delay of the forwarding path of the multicast data in the sharing network segments and saves network bandwidth resources and the multicast router resources.

Description

technical field [0001] The present invention relates to the technical field of communications, in particular to a pruning processing method, device and network equipment for multicast data forwarding paths. Background technique [0002] Multicast is widely used in IP networks, and is mainly used in services such as video-on-demand and video conferencing. Compared with unicast technology and broadcast technology, multicast technology has better advantages in terms of network bandwidth usage, server load, and network deployment. [0003] The protocol independent multicast-dense mode (Protocol Independent Multicast-Dense Mode, PIM-DM) protocol is a widely used multicast routing protocol at present. In the PIM-DM protocol, a flood and prune mechanism is used to establish a multicast tree. The PIM-DM protocol assumes that when a multicast source starts to send a multicast data packet, all devices on the network need to receive the packet, so the packet is forwarded to each devi...

Claims

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Application Information

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IPC IPC(8): H04L12/56H04L12/18H04L45/16
Inventor 杨敬民
Owner BEIJING ZHIGU TECH SERVICE
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