To capture these workload characteristics, we refine the perstream
arrival process to the Packet-Train model developed by
Jain and Routhier [9]. See Figure 12 for an illustration. Each
stream is modeled as sending bursts of packets, where the burst
size in packets has distribution B with mean B,The time between
packets in a burst has distribution 1 with-mean I ; the time between
bursts has distribution T with mean T. We assume the mean
time between bursts is several orders of magnitude larger than the
mean time between packets within a burst, in Iine with Jain and
Routhier's observations.