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Method and device for multicast data transmission

A transmission method and multicast data technology, applied in the field of communication, can solve problems such as waste of network resources

Active Publication Date: 2016-06-08
XINHUASAN INFORMATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The incoming multicast traffic from the multicast source BEB device will be flooded to all other BEB devices that belong to the same instance as the multicast source BEB device, regardless of whether the host connected to the BEB device has receivers for the multicast traffic, resulting in waste of network resources

Method used

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  • Method and device for multicast data transmission
  • Method and device for multicast data transmission

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Embodiment Construction

[0061] In view of the above-mentioned problems in the prior art, the embodiment of the present invention provides a technical solution for multicast data transmission, which is applied to the SPB network. In this technical solution, the BEB device maintains the user multicast group information table according to whether there are multicast group receivers on the user side and the PW side. When the BEB device receives the first message of a specific multicast group from the user side, Assign a multicast tunnel address for the specific multicast group, the multicast tunnel address includes the SPSourceID of the BEB device and the multicast address allocated by the BEB device for the specific multicast group, and then according to the maintained user multicast group information table, Notify the multicast tunnel address to the peer BEB device that has receivers of the specific multicast group, and flood the link status information of the multicast tunnel address in the SPB network...

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Abstract

The present invention discloses a multicast data transmission method and equipment. The method comprises: a BEB equipment maintains a user multicast group information table according to whether there are receivers of the multicast group on the user side and the PW side; After receiving the first packet of a specific multicast group, the BEB device allocates a multicast tunnel address for the specific multicast group; the BEB device notifies the multicast tunnel address to the existing multicast group according to the maintained user multicast group information table The peer BEB device of the multicast group receiver, and floods the link state information of the multicast tunnel address in the SPB network through the BEB device and the peer BEB device, triggering the generation of A multicast forwarding tree; the BEB device forwards subsequent packets of the specific multicast group through the multicast forwarding tree. In the present invention, network resources are saved and system stability is improved.

Description

technical field [0001] The present invention relates to the communication field, in particular to a multicast data transmission method and equipment. Background technique [0002] SPB (ShortestPathBridging, the shortest path bridge) is one of the Ethernet standards defined by IEEE (Institute of Electrical and Electronic Engineers, Institute of Electrical and Electronics Engineers) 802.1aq. Plug the two-layer network, use SPB-ISIS (Intermediatesystemtointermediatesystem, intermediate system to intermediate system) to share the link status in the network, each node in the network calculates the shortest path between each node in parallel, avoiding the use of STP (SpanningTreeProtocol, Spanning Tree Protocol ) caused by instability and low utilization of some links. IEEE802.1aq defines two SPB modes: VLAN (VirtualLocalAreaNetwork, virtual local area network) mode (SPBV) and MAC (MediaAccessControl, media access control)-in-MAC mode (SPBM), where SPBM is currently the main reco...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/761H04L12/46H04L45/16
Inventor 宋小恒
Owner XINHUASAN INFORMATION TECH CO LTD
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