Invention Grant
- Patent Title: Signaling protocol for p-cycle restoration
- Patent Title (中): 用于p周期恢复的信令协议
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Application No.: US11321549Application Date: 2005-12-29
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Publication No.: US07835271B2Publication Date: 2010-11-16
- Inventor: Mansoor Ali Khan Alicherry , Peter Hessler , Viswanath Poosala , Walter Rothkegel , Sudipta Sengupta
- Applicant: Mansoor Ali Khan Alicherry , Peter Hessler , Viswanath Poosala , Walter Rothkegel , Sudipta Sengupta
- Applicant Address: US NJ Murray Hill
- Assignee: Alcatel-Lucent USA Inc.
- Current Assignee: Alcatel-Lucent USA Inc.
- Current Assignee Address: US NJ Murray Hill
- Agency: Ryan, Mason & Lewis, LLP
- Main IPC: G01R31/08
- IPC: G01R31/08

Abstract:
Improved p-cycle restoration techniques using a signaling protocol are disclosed. For example, a technique for use in at least one node of a data communication network for recovering from a failure, wherein the data communication network includes multiple nodes and multiple links for connecting the multiple nodes, comprises the following steps/operations. Notification of the failure is obtained at the at least one node. A determination is made whether the failure is a single link failure or one of a node failure and a multiple link failure. A pre-configured protection cycle (p-cycle) plan is implemented when the failure is a single link failure but not when the failure is one of a node failure and a multiple link failure, such that two independent paths in the network are not connected when implementing the pre-configured protection cycle plan. Implementation of the pre-configured protection cycle plan may further comprise the node sending at least one message to another node in the data communication network and/or receiving at least one message from another node in the data communication network.
Public/Granted literature
- US20070153674A1 Signaling protocol for p-cycle restoration Public/Granted day:2007-07-05
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