Resource reservation scheme for path restoration in an optical network
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United States of America Patent
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Apr 1, 2008
Grant Date -
N/A
app pub date -
May 16, 2001
filing date -
Jan 15, 1999
priority date (Note) -
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Abstract
A method for reserving resources for restoration of a failed virtual path in a mesh optical network is defined. The method in one embodiment, defines multiple classes of service for the virtual path by allocating certain path performance, path implementation and path restoration related attributes to the virtual path. Each class of service defines the relative restoration priority of the virtual path. In a case of a path failure, the class of service is used by each node, to determine how the virtual path will be restored. The higher class of service guarantees a maximum acceptable restoration time during a path failure.
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