try in the ns/tcl/ex/ directory. This is where all the ns example files are. - John Mehringer Lu Shen wrote: > Hi, > I installed ns-all-in-one. > I found an interesting nam file, > "~/ns-allinone-2.1b6/nam-1.0a8/ex/webcache.nam". > Where can I find the tcl file to generate this nam file? > > Thanks a lot! > Shen Lu