Method for forwarding multicast message

Abstract

The invention discloses a method for forwarding a multicast message, comprising the following steps: of judging whether a forwarding mode of the multicast message is configured or not when a final forwarding table mapped by a received multicast message is empty; if so, forwarding the multicast message based on a physical link in a corresponding final forwarding table generated by the configured forwarding mode; and otherwise, judging whether a multicast message head has the requirement to a time sequence; if so, forwarding the multicast message based on a physical link in a corresponding final forwarding table generated by a hash forwarding mode; and otherwise, forwarding the multicast message based on a physical link in a corresponding final forwarding table generated by a polling forwarding mode. By applying the method, the multicast message which has the requirement to the time sequence is forwarded in a hash mode, the correct transmission of data streams is ensured on the premise of sufficiently utilizing the network bandwidth, and the continuity and high quality of the data streams in a multicast network are ensured.

Description

technical field [0001] The invention relates to the technical field of network data transmission, in particular to a method for forwarding multicast messages. Background technique [0002] Currently, there are three message forwarding modes in network data transmission: unicast, broadcast and multicast. Among them, in the unicast message forwarding mode, the hosts associated with each other perform point-to-point message forwarding, and a host can only forward messages with the hosts associated with it, and cannot receive messages from hosts that are not associated with it; In message forwarding, the host as the broadcast data source sends a message to all the hosts in the subnet, and all the hosts in the subnet can receive the message from the data source, thus realizing point-to-multipoint message Forwarding; the multicast message forwarding mode is between the unicast message forwarding mode and the broadcast message forwarding mode. All can receive the message, and thi...

AI Technical Summary

Problems solved by technology

[0008] At present, there are mainly two schemes to determine the physical link used to transmit the data stream. One is to use the polling method to transmit the data stream, that is, to transmit the received data stream through each physical link in turn. The data flow can only be transmitted through a specific physical link. Therefore, when the data flow is transmitted in this way, some data flow will not be transmitted correctly; the second is to use the hash method to transmit the data flow, that is, a certain A specific data stream is only transmitted through a specific physical link. When there are many specific data streams transmitted in the network, the entire transmission process is only transmitted through a certain physical link, and other physical links cannot be obtained. Fully utilized, which leads to low utilization of network bandwidth

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