Invention Grant
- Patent Title: Protecting multi-segment pseudowires
- Patent Title (中): 保护多段伪线
-
Application No.: US11580167Application Date: 2006-10-11
-
Publication No.: US08081563B2Publication Date: 2011-12-20
- Inventor: Jim Guichard , Luca Martini , Keyur Patel , Thomas David Nadeau
- Applicant: Jim Guichard , Luca Martini , Keyur Patel , Thomas David Nadeau
- Applicant Address: US CA San Jose
- Assignee: Cisco Technology, Inc.
- Current Assignee: Cisco Technology, Inc.
- Current Assignee Address: US CA San Jose
- Agency: Brinks Hofer Gilson & Lione
- Main IPC: G01R31/08
- IPC: G01R31/08

Abstract:
The protection of multi-segment pseudowires by utilizing pre-computed backup paths is disclosed herein. Disclosed embodiments include methods that establish at least one backup path for multi-segment pseudowires, the establishing being performed prior to detection of failure in the primary path. Upon detecting a path failure, the detected failure is signaled to the head-end, a pre-computed backup path is chosen, and the chosen backup path is signaled to the tail-end. In other disclosed embodiments, apparatus are configured to establish, prior to detection of failure in the primary path, at least one backup path for the multi-segment pseudowire. Networks can be configured to signal a detected failure to the head-end; choose a pre-computed backup path; and signal the backup path to the tail-end.
Public/Granted literature
- US20080089227A1 Protecting multi-segment pseudowires Public/Granted day:2008-04-17
Information query