| 摘要 |
The present invention provides a dual-homing protection switching method based on Virtual Private LAN Service (VPLS), comprising: when determining that a Bidirectional Forwarding Detection (BFD) status of an uplink Pseudo Wire (PW) is converted from a normal status to an abnormal status, a Provider Edge (PE) side modifies the status of the port, connected to a Customer Edge (CE) side, on the PE side to abnormal; and when detecting that a port connected to the PE side is abnormal, the CE side switches service traffic to a slave link. The present invention correspondingly provides a dual-homing protection switching system based on VPLS. The present invention can inform an Attachment Circuit (AC) side in time for switching when a Virtual Circuit (VC) in the network goes wrong by using the linkage of the CE side and PW side, so the present invention can avoid interrupting the traffic and improve the stability of communication. |
