Invention Grant
US08619553B2 Methods and systems for mesh restoration based on associated hop designated transit lists
有权
基于相关联的指定中转列表的网格恢复方法和系统
- Patent Title: Methods and systems for mesh restoration based on associated hop designated transit lists
- Patent Title (中): 基于相关联的指定中转列表的网格恢复方法和系统
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Application No.: US12350556Application Date: 2009-01-08
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Publication No.: US08619553B2Publication Date: 2013-12-31
- Inventor: Vagish Madrahalli , Alessandro Fabbri , John Oltman
- Applicant: Vagish Madrahalli , Alessandro Fabbri , John Oltman
- Applicant Address: US MD Hanover
- Assignee: Ciena Corporation
- Current Assignee: Ciena Corporation
- Current Assignee Address: US MD Hanover
- Agency: Clements Bernard PLLC
- Agent Christopher L. Bernard; Lawrence A. Baratta, Jr.
- Main IPC: G01R31/08
- IPC: G01R31/08

Abstract:
The present disclosure provides systems and methods for mesh restoration based on Associated Hop Designated Transit Lists (DTLs). The Associated Hop DTLs are calculated through a global restoration calculation (GRC) algorithm that can be run by a central controller in an offline manner. The restoration paths calculated by the GRC algorithm can then be pushed down to the originating nodes for each connection to utilize at the time of a given failure scenario. This GRC algorithm can be performed for each possible bundle failure in the network, where a bundle failure is determined by the set of all links which may fail together due to common shared risk, such as a common conduit or DWDM fiber. The globally calculated, contention free, restoration paths are then pushed down to each node in the network.
Public/Granted literature
- US20100172236A1 METHODS AND SYSTEMS FOR MESH RESTORATION BASED ON ASSOCIATED HOP DESIGNATED TRANSIT LISTS Public/Granted day:2010-07-08
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