# Insert the following lines into ns-allione-2.27/ns-2.27/tcl/lib/ns-default.tclAgent/TCP/Fast  set cwnd_update_period_ 0.01Agent/TCP/Fast  set avgRTT_ 0Agent/TCP/Fast  set baseRTT_ 0Agent/TCP/Fast  set avg_cwnd_last_RTT_ 0Agent/TCP/Fast  set alpha_ 100Agent/TCP/Fast  set beta_ 100Agent/TCP/Fast  set mi_threshold_ 0.00075# This variable is used to determine the calculation method used by NS2 FAST.# Because in real network system, cwnd is an integral while here cwnd is a# double, we provide 3 modes to get cwnd: 1. use double to store cwnd# (high_accuracy_cwnd != 0 nor 1); 2. use int to store cwnd, ignore the# calculation error(high_accuracy_cwnd = 0); 3. use int to store cwnd but# also consider the calculation error(high_accuracy_cwnd = 1).Agent/TCP/Fast  set high_accuracy_cwnd_ 2