Journal article
New preemption policies for DiffServ-aware traffic engineering to minimize rerouting in MPLS networks
IEEE/ACM Transactions on Networking (TON), v 12(4), pp 733-745
01 Aug 2004
Abstract
The preemption policy currently in use in MPLS-enabled commercial routers selects LSPs for preemption based only on their priority and holding time. This can lead to waste of resources and excessive number of rerouting decisions. In this paper, a new preemption policy is proposed and complemented with an adaptive scheme that aims to minimize rerouting. The new policy combines the three main preemption optimization criteria: number of LSPs to be preempted, priority of the LSPs, and preempted bandwidth. Weights can be configured to stress the desired criteria. The new policy is complemented by an adaptive scheme that selects lower priority LSPs that can afford to have their rate reduced. The selected LSPs will fairly reduce their rate in order to accommodate the new high-priority LSP setup request. Performance comparisons of a nonpreemptive approach, a policy currently in use by commercial routers, and our policies are also investigated.
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Details
- Title
- New preemption policies for DiffServ-aware traffic engineering to minimize rerouting in MPLS networks
- Creators
- Jaudelice de OliveiraCaterina ScoglioIan AkyildizGeorge Uhl
- Publication Details
- IEEE/ACM Transactions on Networking (TON), v 12(4), pp 733-745
- Publisher
- IEEE Press
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Electrical and Computer Engineering
- Web of Science ID
- WOS:000223690700014
- Scopus ID
- 2-s2.0-4644371963
- Other Identifier
- 991014878520104721
InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Collaboration types
- Domestic collaboration
- Web of Science research areas
- Computer Science, Hardware & Architecture
- Computer Science, Theory & Methods
- Engineering, Electrical & Electronic
- Telecommunications