[ns] Where is the tcl implementation of FTP or CBR?

[Behnaz . Bostanipour]

Hi all,

Sorry for this easy question but I always have the same
problem when I want to find c++ or tcl implementation of an
ns2 element. Is there any source where I can find the path
of classes?


For instance, in which directory is the TCL class for FTP or
CBR?

Thanks in advance,
Behnaz