Inter-domain QoS routing with virtual trunks

• Type: Article in International Conference Proceedings Book
• Date: 2007

Authors

prior, r (Author) FCUP; sargento, s (Author) Other

Conference proceedings International

Title: 2007 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS, VOLS 1-14

Pages: 139-146

IEEE International Conference on Communications (ICC 2007)

Glasgow, SCOTLAND, JUN 24-28, 2007

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ISI Web of Knowledge - 4 Citations

ISI Web of Science

Scopus - 6 Citations

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COMPENDEX

Scientific classification

FOS: Engineering and technology > Electrical engineering, Electronic engineering, Information engineering

Other information

Authenticus ID: P-004-F1R

DOI: 10.1109/icc.2007.31

Abstract (EN): This paper addresses the problem of inter-domain QoS routing. We propose a solution based on virtual-trunk type aggregates corresponding to Service Level Agreements (SLA) for data transport between peering domains. We formally state the problem and formulate it in Integer Linear Programming. As a practical solution, we propose an extension to the BGP routing protocol, QoS_INFO, conveying three QoS metrics (light load delay, assigned bandwidth and a congestion alarm), and a path selection algorithm using a combination of these metrics. We present simulation results of QoS_INFO, standard BGP, and BGP with the QoS_NLRI extension, and compare them with the optimal route set provided by the ILP formulation. The results show that our proposal yields better QoS parameters than standard BGP or BGP with the QoS_NLRI extension, since it is able to efficiently avoid congested paths, and that the impact of QoS_INFO in route stability is relatively low.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 8