TUNING ROUTING METRICS TO REDUCE MAXIMUM LINK UTILIZATION AND/OR PROVIDE FAILURE RESILIENCY
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United States of America Patent
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Issued Date -
Nov 15, 2012
app pub date -
Jul 23, 2012
filing date -
Jul 18, 2007
priority date (Note) -
Abandoned
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Abstract
A metric tuning technique optimizes the maximum link utilization of a set of links incrementally. Changes to the metric are constrained to be metric increases to divert routes from select links, thereby minimizing the number of changes required to achieve the optimization by avoiding the potential cascade of changes caused by attracting routes to a link. An interactive user interface is provided to allow a user to specify limits and constraints, and to select the sets of links to be addressed, including, for example, only the links that exceed a given link utilization threshold, the links having the highest link utilizations, the links having the highest failure effect, and so on. This incremental optimization technique is also used to optimize network resiliency by minimizing the network degradation caused by the failure of one or more links.
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