Optimization of distributed tunnel rerouting in a computer network with coordinated head-end node path computation
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United States of America Patent
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Feb 9, 2010
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Jun 26, 2008
app pub date -
Feb 20, 2007
filing date -
Dec 22, 2006
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Abstract
In one embodiment, head-end nodes receive a list of tunnels to be rerouted from a particular link of an intermediate node. If a head-end node is unable to reroute a tunnel for which it is the head-end node using conventional distributed routing, each head-end node executes the same algorithm to compute paths for all tunnels in the list (e.g., potentially applying bandwidth scaling).
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