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QoS routing algorithms for pre-computed paths

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3 Author(s)
C. Pornavalai ; Res. Inst. of Electr. Commun., Tohoku Univ., Sendai, Japan ; G. Chakraborty ; N. Shiratori

Routing with multiple QoS constraints is known to be a NP-complete problem. In our previous work (QoSRBF algorithm), we have shown that, for a number of specific QoS constraints, this problem can be solved in polynomial time, when a weighted fair queueing (WFQ) service discipline is employed. QoSRBF is an on-demand algorithm. We propose a number of QoS routing algorithms for pre-computed paths, when all or some of the flow specification parameters and the amount of bandwidth that has to be reserved are not known a priori. We also show that the size of the routing table could be reduced, as paths satisfying some conditions could be neglected

Published in:

Computer Communications and Networks, 1997. Proceedings., Sixth International Conference on

Date of Conference:

22-25 Sep 1997