Figure 1 shows that the network achieves stability at a channel speed of 900 Mb/sec (in fact it is something less than 900 Mb/sec for burst=1) which equates to a utilization greater than .40. This is excess capacity due to the disparity in station traffic (i.e. three large users and three small users). The results above are for a burst factor of 1. Higher burst factors require slightly higher channel speeds for stability so we will begin our simulation execution at 1000 Mb/sec.

Figure 1 looks at the network as a whole rather than individual stations because of the contentive nature of the protocol which gives all stations equal access to the channel and thus equal service potential.