| 摘要 |
<p>The embodiments of the invention provide a multicast duplication method, device and system. The method includes: the downlink module of an egress Traffic Manager (TM) receives, with a circle port, a multicast message sent from a switching network, and sends it to the uplink module; the uplink module of the egress TM searches for the corresponding multicast member ports according to the group identifier carried in the multicast message; the uplink module duplicates the multicast message according to the number of the multicast member ports included in the egress TM, adds the duplicated multicast messages to the unicast message buffering queue according to the priority, and sends them to the downlink module through a local forwarding channel after configuring the scheduler according to the Quality of Service (QoS) of the multicast member ports, to make the duplicated multicast messages sent out. The multicast duplication method, device and system in the embodiments of the invention can realize providing QoS guarantee in the situation of effectively saving the switching network bandwidth, and can further improve the bandwidth utilization rate of the switching network when the switching network performs multicast message duplication for different egress TMs.</p> |
