Backward-recursive path computation using RSVP-TE
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United States of America Patent
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Mar 20, 2018
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app pub date -
Mar 22, 2013
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Dec 5, 2012
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Abstract
One or more nodes, in a network, are configured to transmit a message, for computing diverse paths through the network from a first domain to a second domain using a Resource Reservation Protocol-Traffic Engineering (RSVP-TE) signaling protocol; generate at least one data structure that identifies multiple diverse entry points to the second domain; transmit the at least one data structure toward the first domain; complete the at least one data structure to form at least one completed data structure; use a first data structure, of the at least one completed data structure, to compute a primary path from the first domain to the second domain; and use a second data structure, of the at least one completed data structure, to compute a secondary path from the first domain to the second domain.
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