Method, device and system for establishing a pseudo wire

摘要: A method, a device and system for establishing Pseudo Wire (PW) are provided. The method includes: receiving, by switching node, control message; constructing first message according the FEC information routing in message, sending to second terminal node; constructing, where includes information, carries identification of node. In it is unnecessary manually configure PW table on node or establish dynamically through protocol, mapping relations between segments manually. This achieves robust maintenance.