Invention Grant
- Patent Title: Communication of control and data path state for networks
- Patent Title (中): 网络控制和数据路径状态通信
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Application No.: US10744838Application Date: 2003-12-23
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Publication No.: US07774474B2Publication Date: 2010-08-10
- Inventor: Peter Ashwood-Smith , Darek Skalecki , James A. Sheilds , Antonela Paraschiv
- Applicant: Peter Ashwood-Smith , Darek Skalecki , James A. Sheilds , Antonela Paraschiv
- Applicant Address: CA St. Laurent, Quebec
- Assignee: Nortel Networks Limited
- Current Assignee: Nortel Networks Limited
- Current Assignee Address: CA St. Laurent, Quebec
- Agency: Mintz, Levin, Cohn, Ferris, Glovsky and Popeo PC
- Main IPC: G06F15/16
- IPC: G06F15/16 ; H01R31/08

Abstract:
A method and system for resynchronizing a control layer and a line layer by tracing the data path through the line layer and, at the control layer, reclaiming ownership of disowned connections corresponding to the traced data path. Beginning at a head-end controller, the data path is traced by identifying the next controller along the data path and sending a set-up message containing the local state information necessary for a second controller to identify the connection within its associated network element that is associated with the data path. The second controller receives the set-up message and claims ownership of its portion of the data path. It then identifies the next leg or hop in the data path, modifies the set-up message to add data regarding the next hop, and sends the modified set-up message to the next controller along the data path. The process is repeated so as to dynamically establish a control connection corresponding to and synchronized with the existing data path.
Public/Granted literature
- US20050198312A1 Resynchronization of control and data path state for networks Public/Granted day:2005-09-08
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