Second-layer multicast data message forwarding method and device

A data message and multicast message technology, applied in the field of network communication, can solve the problem of chip forwarding capacity consumption, etc., and achieve the effect of improving bandwidth utilization, reducing redundant traffic, and saving processing resources

Active Publication Date: 2015-04-29
NEW H3C TECH CO LTD
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

Nodes without terminals decapsulate the multicast data packets encapsulated in RPR broadcast packets but do not match them to the multicast forwarding table, and discard the decapsulated multicast data packets. kind of consumption

Method used

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  • Second-layer multicast data message forwarding method and device
  • Second-layer multicast data message forwarding method and device
  • Second-layer multicast data message forwarding method and device

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[0020] The embodiments of the present invention will be described in further detail below with reference to the drawings.

[0021] Such as Figure 2A As shown, an embodiment of the present invention provides a layer 2 multicast data message forwarding method, which is applied to a node connected to a multicast source in a resilient packet ring RPR network. The method includes the following steps:

[0022] Step 201: Determine each multicast destination node;

[0023] Among them, the method for determining the multicast destination node includes: receiving an RPR broadcast message encapsulating an IGMP (Internet Group Management Protocol) report message; and converting the source RPR MAC of the RPR broadcast message encapsulating the IGMP report message The sub-port number corresponding to the address is added to the sub-port set of the multicast forwarding table; the source RPR MAC address of the RPR broadcast message encapsulated in the IGMP report message corresponds to the site identi

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Abstract

The invention discloses a second-layer multicast data message forwarding method and device. The method is applied to a node, connected with a multicast source, in a resilient packet ring (RPR) network. The method includes the steps that multicast destination nodes are determined; multicast data messages are received; optical forwarding routes to the multicast destination nodes are determined according to collected topological information; RPR multicast messages packaging the multicast data messages are sent according to the optimal forwarding routes; target RPR MAC addresses sending the RPR multicast messages on the optimal forwarding routes comprise node information of the multicast destination nodes on the optimal forwarding routes, and the time to live (TTL) of the RPR multicast messages sent on the optical forwarding routes is equal to the hot count of the farthest multicast destination nodes on the optical forwarding routes. By means of the second-layer multicast data message forwarding method and device, the redundancy flow on the RPR can be reduced, and the bandwidth utilization rate is increased.

Description

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Claims

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Application Information

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Owner NEW H3C TECH CO LTD
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