Boosting the Network Performance via Traffic Reshaping
نویسندگان
چکیده
Traac reshaping and its impact on providing deter-ministic guarantees of timely data delivery in a packet-switched virtual-circuit xed-packet network are investigated. Two types of traac smoothing are considered: global reshaping (when traac on all network connections is smoothed) and local reshaping (when the traac speciication is changed only for a single connection). The conditions when reshaping is beneecial are derived and the optimal values of traac model parameters are obtained. In particular, it is shown that, when one tries to minimize end-to-end delay bounds for leaky bucket constrained traac, the traac either should be made Constant Bit Rate (CBR) or should not be reshaped at all. It is proven that changing the leaky bucket spec-iication to the dual leaky bucket speciication is always able to yield better timeliness guarantees and utilization of network resources. Finally, local reshaping for the dual leaky bucket model is studied.
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