Invention Grant
- Patent Title: Failure protection for P2MP tunnel tail-end node
- Patent Title (中): P2MP隧道尾端节点的故障保护
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Application No.: US11604622Application Date: 2006-11-27
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Publication No.: US08355315B2Publication Date: 2013-01-15
- Inventor: Jean-Phillippe Vasseur , Alton Lo , Mohammed Azhar Sayeed
- Applicant: Jean-Phillippe Vasseur , Alton Lo , Mohammed Azhar Sayeed
- Applicant Address: US CA San Jose
- Assignee: Cisco Technology, Inc.
- Current Assignee: Cisco Technology, Inc.
- Current Assignee Address: US CA San Jose
- Agency: Cesari and McKenna, LLP
- Main IPC: G01R31/08
- IPC: G01R31/08
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.
Public/Granted literature
- US20080123521A1 Failure protection for P2MP tunnel tail-end node Public/Granted day:2008-05-29
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