... simulation in Figure 4 uses the scenario in Figure 1, with the bandwidth of the R2-S4 linkset to 128 Kbps, 9% of the bandwidth of the R1-R2 link. Be-cause the final link in the path for the UDP ... shows the UDP sending rate, as a fraction of the bandwidth on the R1-R2link. The dashed line shows the UDP arrival rate at the routerfor the entire simulation set, the dotted line shows the UDPgoodput, ... occur if, in a time of increasing load,an increasing fraction of the link bandwidth was being used bypush web data that was never requested by the user.2.4 Building in the right incentivesGiven...