The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 27, 2014
Filed:
Dec. 02, 2009
Yuehua Wei, Shenzhen, CN;
Bin Wang, Shenzhen, CN;
Yuehua Wei, Shenzhen, CN;
Bin Wang, Shenzhen, CN;
ZTE Corporation, Shenzhen, Guangdong Province, CN;
Abstract
The invention discloses a segment protection method for an Ethernet tunnel, there are two segment protection domains with a shared link in a Provider Backbone Bridge-Traffic Engineering (PBB-TE) network, and at least one of the two segment protection domains works in a non-revertive mode, and when a simultaneous failures of working segments of two segment protection domains recover or a failure of the shared node of the working segments recovers, the shared node of the working segments switches all the FDB entries of bidirectional ESPs of all the TESIs protected by the protection domains to standby entries, and after switching, out ports of the FDB entries of the ESPs are the ports connecting the shared segment. The invention also discloses a shared node of working segments of protection domains correspondingly. The invention is able to ensure that the bidirectional ESPs are co-routed after the failure recovering.