Method and apparatus for constructing a backup route in a data communications network
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United States of America Patent
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Apr 27, 2010
Grant Date -
Feb 15, 2007
app pub date -
Jan 9, 2003
filing date -
Jan 9, 2003
priority date (Note) -
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status (Latency Note)
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Abstract
A method is disclosed for constructing a backup route from a source node around an adjacent component. The source node derives a first set of nodes reachable from it without traversing the adjacent component and a second set of nodes from which a neighbor node of adjacent components is reachable without traversing the adjacent component. The source node then constructs a backup route via an intermediate node in the intersection of the first and second sets.
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