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
CN103067286BActive Publication Date: 2016-06-08XINHUASAN INFORMATION TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
XINHUASAN INFORMATION TECH CO LTD
Publication Date
2016-06-08

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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.
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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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