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    Fast Time-Dependent Evaluation of Integrated Services Networks

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    Date
    1998-10-15
    Author
    Matta, Ibrahim
    Shankar, A. Udaya
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    Abstract
    We present a numerical-analytical method to evaluate integrated services networks with adaptive routing, scheduling and admission controls. We apply our method to connection-oriented networks supporting different types of real-time connections. The network dynamics is described by difference equations which can be solved for both transient and steady-state performances. Results indicate that our method is computationally much cheaper than discrete-event simulation, and yields accurate performance measures. We compare the performance of different routing schemes on the NSFNET backbone topology with a weighted fair-queueing link scheduling discipline and admission control based on bandwidth reservation. We show that the routing scheme that routes connections on paths which are both under-utilized and short (in number of hops) gives higher network throughput. (Also cross-referenced as UMIACS-TR-94-28)
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    http://hdl.handle.net/1903/622
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    • Technical Reports of the Computer Science Department

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