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2002
IEEE

A New Preemption Policy for DiffServ-Aware Traffic Engineering to Minimize Rerouting

8 years 11 months ago
A New Preemption Policy for DiffServ-Aware Traffic Engineering to Minimize Rerouting
Abstract-In this paper, a new preemption policy is proposed and complemented with an adaptive scheme that aims to minimize rerouting. The preemption policy combines the three main optimization criteria: number of LSPs to be preempted, priority of LSPs to be preempted, and amount of bandwidth to be preempted. The preemption policy is complemented by an adaptive scheme that selects LSPs with lower priority and reduces their rate in order to accommodate the new high-priority LSP setup request. Heuristics for both preemption and adaptive preemption policies are derived. Simulation results show the heuristics’ accuracy. Performance comparisons of a non-preemptive approach, our preemption policy, the adaptive rate policy, and the policy in use by commercial routers are included.
Jaudelice Cavalcante de Oliveira, Caterina M. Scog
Added 15 Jul 2010
Updated 15 Jul 2010
Type Conference
Year 2002
Where INFOCOM
Authors Jaudelice Cavalcante de Oliveira, Caterina M. Scoglio, Ian F. Akyildiz, George Uhl
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