
51Computer Networks with Finite Buffers
bit sharper than in the previous case. The behavior of the actual average generation rate λ
act
as a
function of nominal probability of message generation λ is shown in Figure 2.30. The second-
order transition characterization is also supported by the characteristic uctuations in the num-
ber of messages in the network during simulations and uctuations in the number of saturated
buffers (Figures 2.31 through 2.33). They both increase in amplitude and in wavelength as
network load increases (Figure 2.32). To obtain more accurate estimate of the critical point, we
have conducted several series of the exper ...