I am simulating cbq(fq, scfq, wf2q+) scheduling with ns. I want use various input source for this simulation. and I want experiment packet loss, delay bound, mean queue length .. for each source. Can I get various input source (e.g. video, voice, ftp, telnet, poisson, on-off. ) ? and How I use this source to scheduling input source. I will wait advice of ns-users.