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:
Jan. 15, 2013
Filed:
Nov. 27, 2006
Jean-phillippe Vasseur, Dunstable, MA (US);
Alton Lo, Fremont, CA (US);
Mohammed Azhar Sayeed, Shrewsbury, MA (US);
Jean-Phillippe Vasseur, Dunstable, MA (US);
Alton Lo, Fremont, CA (US);
Mohammed Azhar Sayeed, Shrewsbury, MA (US);
Cisco Technology, Inc., San Jose, CA (US);
Abstract
In one embodiment, a primary tail-end node (PTE) of a point-to-multipoint (P2MP) tunnel selects a backup tail-end node (BTE) from one or more BTEs that are configured to forward traffic to a same multicast network as the PTE. The PTE then determines a branching node of the P2MP tunnel to reach the PTE and the selected BTE, and notifies the branching node of the selected BTE. In response, the branching node establishes a backup tunnel to the selected BTE, and redirects P2MP traffic onto the backup tunnel to the selected BTE in response to a detected failure of the PTE.