ETHERNET FRAME BROADCAST EMULATION

摘要

A method to facilitate the broadcast of frames between a set of Edge Nodes of a transport network, where nodes of the transport network forward frames using labels added to the frames at ingress Edge Nodes. The method comprises, at each of said Edge nodes a nd at intermediate nodes in the paths between said Edge Nodes, installing an entry or entries into a forwarding table mapping frame labels to output forwarding ports such that said entries together form a single forwarding construct such that frames labell ed by any of the Edge Nodes of said set are transmitted to all other Edge Nodes of the same set. Upon receipt of a frame at one of said Edge Nodes or intermediate nodes, the provided forwarding table is used to map the frame label of the frame to one or m ore forwarding ports. Frames are then sent via the identified forwarding port(s).