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Quality of service-based multi-domain routing under multiple quality of service metrics

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2 Author(s)
Yiltas, D. ; Comput. Sci. Dept., NC State Univ., Raleigh, NC, USA ; Perros, H.

Applications such as voice and video require network paths that satisfy several different quality of service (QoS) metrics, such as delay, jitter, packet loss rate and availability. The calculation of paths under multiple QoS metrics, such as the above four metrics, is a difficult problem since these metrics are in general incompatible. The authors propose a simple method for combining the above four QoS metrics into a single composite QoS metric which can be used as a link cost in Dijkstra's algorithm in order to calculate a path. The authors evaluated the proposed method in a multi-domain routing environment where domain reachability information is available through a service oriented architecture paradigm, and they show that it outperforms two commonly used methods. The results are also applicable to routing within a single domain.

Published in:

Communications, IET  (Volume:5 ,  Issue: 3 )