Computing repair path information
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United States of America Patent
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Sep 1, 2009
Grant Date -
Sep 18, 2008
app pub date -
Mar 15, 2007
filing date -
Mar 15, 2007
priority date (Note) -
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Abstract
An apparatus and method is described for computing repair path information around a failure component in a data communications network having a components nodes and links therebetween. Where, according to a routing protocol, a node sends to a neighbor node a metric indicative of reachability of a destination node, the protocol requiring differentiated action by the node if the route to the destination node includes the neighbor node, the apparatus is arranged to compute a repair path to the destination node via candidate nodes comprising only neighbor nodes to the apparatus not requiring differentiated action relative to the apparatus.
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