METHOD, SYSTEM AND EQUIPMENT TO ESTABLISH BFD DETECTION FOR LSP TUNNEL

摘要

A BFD test method for LSP Tunnel with the spurious line series is provided. The method includes following steps as the source backbone network's edge PE equipment and the sink PE equipment are a group of PW which chooses the same couple of LSP Tunnel. The PW group is provided with the same Group ID; the source PE equipment creates the BFD conversation on LSP Tunnel and sends MPLS Ping message to the sink PE equipment via LSP Tunnel. The MPLS Ping message carries the Group ID and BFD specifications; the sink PE equipment chooses the reversal LSP Tunnel hereof as per the Group ID carried by MPLS Ping message, so as to send the BFD protocol message to the source PE equipment. Thus, BFD test can be established for LSP Tunnel. In this case, BFD test for the PW group can be reflected via BFD test on LSP Tunnel.