Multicast data transmission method and equipment

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: 2013-04-24
XINHUASAN INFORMATION TECH CO LTD
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  • 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

Method used

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  • Multicast data transmission method and equipment
  • Multicast data transmission method and equipment
  • Multicast data transmission method and equipment

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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 invention discloses a multicast data transmission method and equipment. The method comprises the following steps that: BEB (Backbone Edge Bridge) equipment maintains a user multicast group information list according to that whether a receiver of a multicast group exists on a user side and a PW side or not; after receiving a first message of a special multicast group from the user side, the BEB equipment assigns a multicast tunnel address to the special multicast group; the BEB equipment announces the multicast tunnel address to opposite-end BEB equipment with a receiver of the special multicast group according to the maintained multicast group information list and implements flooding of link status information of the multicast tunnel address in an SPB (Shortest Path Bridging) network by the BEB equipment and the opposite-end BEB equipment so as to trigger and generate a multicast transmission tree based on a multicast source and the multicast receiver; and the BEB equipment transmits subsequent messages of the special multicast group through the multicast transmission tree. According to the multicast data transmission method and equipment disclosed by the invention, network resources are saved, and the 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 (Shortest Path Bridging, 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, and is the MSTP (Multiple Spanning Tree Protocol, Multiple Spanning Tree Protocol) Further extension, aiming to build a large flat non-blocking two-layer network, using SPB-ISIS (Intermediate system to intermediate system, intermediate system to intermediate system) to share the link status in the network, and each node of the network calculates in parallel between each node The shortest path avoids the instability caused by STP (Spanning Tree Protocol) and the low utilization rate of some links. IEEE802.1aq defines two SPB modes: VLAN (Virtual Local Area Network, virtual local area net...

Claims

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Application Information

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IPC IPC(8): H04L12/761H04L12/46H04L45/16
Inventor 宋小恒
Owner XINHUASAN INFORMATION TECH CO LTD
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