MULTI-ROUTER IGP FATE SHARING
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United States of America Patent
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app pub date -
Jun 18, 2012
filing date -
May 22, 2008
priority date (Note) -
Abandoned
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Abstract
A method for routing communication traffic in a network includes detecting that a link in a parallel link configuration has failed and in response, adjusting one or more metrics associated with other links in the parallel link configuration to indicate that none of the links in the parallel configuration are available. A router connected to a direct link in a parallel link configuration including one or more other routers connected to one or more indirect links, respectively, includes a memory storing configuration parameters specifying a minimum number of links required to be operational in the parallel link configuration and an artificially high cost, and a link metric adjustment module operable to set a metric of the direct link to the artificially high cost until the minimum number of required links are operational after startup of the router or failure and reactivation of the direct link.
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