SWITCHING METHOD, SYSTEM AND DUAL HOMING PROVIDER DEVICE FOR PSEUDOWIRE DUAL HOMING NETWORK

摘要

Provided in the present invention is a switching method, a system and a dual homing provider device for a pseudowire dual homing network, the switching method comprising: when a fault occurs on a primary link and a user terminal switches traffic to a standby link, a primary dual homing provider device of the primary link initiates an intermediate switching pseudowire, said intermediate switching pseudowire being the pseudowire established between the primary dual homing provider device and a standby dual homing provider device of the standby link; the primary dual homing provider device switches traffic to the intermediate switching pseudowire for transmission. By means of adding an intermediate switching pseudowire, the present invention improves network switching performance, improves switchback performance, ensures network stability, and provides improved service for the client.