Transmission network, transmission apparatus, channel switching method and program for transmission network

摘要

A transmission network according to the present invention includes an ingress transmission apparatus and relay or egress transmission apparatuses in network channel setting terms, wherein the ingress transmission apparatus includes a switching table in which to register in advance a channel to switch to from a certain channel in the network; a path calculation unit which calculates a channel path in said network and searches for a path to set; a channel switching unit which switches a failed channel in the network to a channel registered in the switching table or a channel searched by a path calculation unit, and a channel setting/removal unit which sends a SET CHANNEL or REMOVE CHANNEL instruction to the relay or egress transmission apparatus.