Optimization Of Rules Used For Prevention Of Duplication And Looping Of Multicast Traffic Within A Multi-Homed Cluster Of Backbone edge Bridges In A Shortest Path bridging multicast Network

摘要

A method, apparatus and computer program product for prevention of duplication and looping of multicast traffic within a multi-homed cluster of backbone edge bridges is presented. Multicast traffic is received on a first Access device (AD). The multicast traffic is forwarded from the first AD to a first Backbone edge Bridge (BEB). Any available Backbone Virtual Local Area Network (BVLAN) is chosen to forward the multicast traffic into a transport network by the first BEB. The multicast traffic is received at a second BEB from said first BEB. A determination is made whether a nickname in a packet of the multicast traffic is a nickname of the first BEB and when the nickname in the packet matches a nickname of the first BEB then abstaining from making copies of said packet for said first AD and said second AD.

主权项

1. A computer-implemented method in which a computer system performs operations comprising:
for a network system having a transport network and a cluster of at least a first Backbone Edge Bridge (BEB) and a second BEB each of said first BEB and said second BEB in communication with said transport network, a first multihomed Access Device (AD) and a second multihomed AD, receiving multicast traffic on said first AD; forwarding said multicast traffic from said first AD to said first BEB; choosing any available Backbone Virtual Local Area Network (BVLAN) to forward said multicast traffic into said transport network by said first BEB; receiving said multicast traffic at said second BEB from said first BEB; determining whether a nickname in a packet of said multicast traffic is a nickname of said first BEB and when said nickname in said packet matches a nickname of said first BEB then abstaining from making copies of said packet for said first AD and said second AD.