Patent ID: 8738960

Claim:
A segment protection method for an Ethernet tunnel,comprising: in a Provider Backbone Bridge-Traffic Engineering (PBB-TE) network which comprises two segment protection domains with shared link and in which at least one of the two segment protection domains works in a non-revertive mode, when both working segments of the two segment protection domains have simultaneous failures or a shared node (PIB) on the shared link on the working segments of the two segment protection domains has a failure, at least one Traffic Engineering Service Instance (TESI) carried on the working segments of the two segment protection domains swithching to protection segments of the two segment protection domains; when the simultaneous failures of the working segments of the two segment protection domains recover or the failure of the PIB recovers, the PIB switching all working entries in a filtering data base (FDB) thereon to corresponding standby entries, wherein, each working entry includes a destination MAC address, a VLAN ID of one of bidirectional Ethernet Swithced Paths (ESPs) of the said TESI and an out port directing to the working segment of the said one ESP, and the corresponding standby entry includes the same destination Mac address and VLAN ID with the working entry, and an out port directing to the protection segment; thereby, when the protection segment of one of the two segment protection domains has a failure, and after the at least one TESI carried on the protection segment of the said one segment protection domain switch to the working segment of the said one segment protection domain, data streams on the bidirectional ESPs of the said TESI are transmitted on the same path.