$ns or $ns_ are just variable names, they could be anything. Normally you can pick any. However mobility pattern files (if you're sourcing one) are usually generated assuming the simulator instance is $ns_. In such cases, either you should use $ns_ or you should modify the mobility pattern file you source.
Kamil On Mon, 2007-08-20 at 18:57 +0000, JEHD MAHDI wrote: > > hi there, i get this message : "ns_": no such variable > > do i need to use $ns_ or $ns for version 2.29 cheers > > > J Mahdi > Newcastle Upon Tyne > ********************** > > > _________________________________________________________________ > 100’s of Music vouchers to be won with MSN Music > https://www.musicmashup.co.uk/index.html