Message transmitting method and equipment

Abstract

The invention discloses a message transmitting method and message transmitting equipment. The method comprises the following steps that: when a protocol independent multicast (PIM) Hello message from a router is received, a switch adds control information into the PIM Hello message and transmits the PIM Hello message which carries the control information to other routers, so that other routers can cancel the addition of inhibition functions; and when a Join / prune message from the router is received, the switch broadcasts the Join / prune message in a virtual local area network (VLAN). In the method, the Join / prune message does not need to be split when a PIM Snooping switch transmits the Join / prune message.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a message transmission method and equipment. Background technique [0002] (1) Introduction to PIM (Protocol Independent Multicast, Protocol Independent Multicast) [0003] PIM belongs to the multicast routing technology, which means that the unicast routing table generated by static routing or any unicast routing protocol can be used to provide routing for IP multicast. The routing protocol only needs to generate corresponding multicast routing table entries. [0004] Among them, PIM uses the RPF (Reverse Path Forwarding, reverse path forwarding) mechanism to realize the forwarding of multicast data. When the multicast data arrives at the local device, the RPF check is first performed on the multicast data. If the RPF check passes, a corresponding The multicast routing table entry is used to forward the multicast data; if the RPF check fails, the multicast data is disca...

AI Technical Summary

Problems solved by technology

If the Join / Prune message contains both the Join message and the Prune message, because the forwarding rules of the Join message and the Prune message are inconsistent (the Prune message is sent in broadcast mode, the Join message cannot be sent in broadcast mode), Then the original Join / Prune message needs to be reorganized, and the original Join / Prune message needs to be split into several new Join messages and Prune messages. The splitting process is more complicated, and the Join / Prune When a Prune packet is split into a Join packet and a Prune packet, the working efficiency of the switch is also affected, and there is a timing control problem of splitting a packet into multiple packets.

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