In [3], Paxson and Floyd find that user initiated TCP session arrivals, such as remotelogin and filetransfer, are wellmodeled as Poisson processes with fixed hourly rates, but that other connection arrivals deviate considerably from Poisson. Besides, modeling TELNET packet inter arrivals as exponential grievously underestimates the bursti ness of TELNET traffic, but using the empirical Tcplib inter arrivals preserves burstiness over many time scales and that FTP data connection arrivals within FTP sessions come bunched into ``connection bursts'', the largest of which are so large that they completely dominate FTP data traffic.