A Simulation Study on the Relation of DiffServ Packet Level Mechanisms and Flow Level QoS Requirements
Eeva Nyberg, Samuli Aalto, Riikka Susitaival · 2002
We deepen our previous analytical studies to include simulations, with special considerations on the effect that the metering mechanisms at the DiffServ boundary nodes have on differentiation. The two metering and marking mechanisms compared are token bucket and exponential weighted moving average (EWMA). The conjecture made in our analytical models is that the EWMA principle marks packets per flow, while the token bucket is a per packet metering and marking mechanism.