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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

AI Technical Summary

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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Embodiment Construction

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

[0021] Such as Figure 2A As shown, the present invention provides a kind of two-layer multicast data packet forwarding method in one embodiment, is applied to the node that is connected with multicast source in the resilient packet ring RPR network, and this method comprises the following steps:

[0022] Step 201, determining each multicast destination node;

[0023] Wherein, the method for determining the multicast destination node includes: receiving an RPR broadcast message that encapsulates an IGMP (Internet Group Management Protocol, Internet Group Management Protocol) 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 that encapsulates the IGMP report message corresponds to the site ID of the multicast ...

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PUM

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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

technical field [0001] The invention relates to the technical field of network communication, in particular to a layer-2 multicast data packet forwarding method and device. Background technique [0002] RPR (Resilient Packet Ring) is a new MAC (Media Access Control) protocol that can run on SONET (Synchronous Optical Network) / SDH (Synchronous Digital Hierarchy) ), DWDM (Dense Wavelength Division Multiplexing) and Ethernet, providing flexible and efficient networking solutions for broadband IP MAN operators. [0003] RPR adopts RPR MAC layer frame encapsulation to realize transparent transmission of Ethernet Over RPR. The ring structure and topology protection mechanism of RPR are transparent to the forwarding process of carried traffic and access devices. [0004] RPR adopts a reverse double-ring structure, and data is forwarded between nodes along the ring network [0005] exist figure 1 In the shown existing RPR network, the RPR network includes nodes 101-105. Nodes 1...

Claims

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Application Information

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IPC IPC(8): H04L12/761H04L45/16
Inventor 游君平项学锋汪洪远郑国良
Owner NEW H3C TECH CO LTD
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