Ns-Manual (PDF version, p. 87): [..] TCP/Vegas a Vegas TCP sender TCP/Vegas/RBP a Vegas TCP with rate based pacing TCP/Vegas/RBP a Reno TCP with rate based pacing TCP/Asym an experimental Tahoe TCP for asymmetric linksA [..] I guess the third line should be TCP/Reno/RBP. Best regards, Kostas --- Kostas Pentikousis @ CS SUNY Stony Brook @ http://www.cs.sunysb.edu/~kostas