ns2- network simulator problem

vivekr · 01-16-2006, 06:20 PM

Hai,
i was a little confused as to where to place my question..
and i decided my q would be more appropriate here ..

so.. after installing ns2.9... without any errors and a perfect validation now the ns spits the error

Code:

[vivek@localhost ns-2.29]$ ./ns
% ns example1.tcl
warning: using backward compatibility mode
error when calling class OldSim: example1.tcl
% cat example1.tcl
set ns [ new Simulator ]
set nf [ open out.nam w ]
$ns namtrace-all $nf
proc finish { }
{
  global ns nf
  $ns flush-trace
  close $nf
  exec nam out.name &
  exit 0
}
set n0 [ $ns node ]
set n1 [ $ns node ]
$ns duplex-link $n0 $n1 10ms DropTail
$ns at 5.0 "finish"
$ns run
%

I saw a lot of these kind in ns-mailing list with no proper solution.. so i resorted to LQ, my favourite

bangoram · 07-22-2006, 01:56 AM

Hi Vivekr!!

Even I am stuk due to this error!!

Have u found any solutions ???

I have explained what I have did ---

I have downloaded one of ns2 example1 from the website "ns by example"

when I type this line--
ns example1.tcl (with much curiosity to see an output)

I am getting this following error:

error when calling class OldSim: example1.tcl

But some how I got this info {class OldSim -superclass Simulator}
Do you know how to fix this problem,even I am unable to find any information about this in ns-mailing list...

Thanks a lot!!!

Bango-Ram

mrbhush · 10-08-2007, 01:01 PM

Quote:

Originally Posted by vivekr

Hai,
i was a little confused as to where to place my question..
and i decided my q would be more appropriate here ..

so.. after installing ns2.9... without any errors and a perfect validation now the ns spits the error

Code:

[vivek@localhost ns-2.29]$ ./ns
% ns example1.tcl
warning: using backward compatibility mode
error when calling class OldSim: example1.tcl
% cat example1.tcl
set ns [ new Simulator ]
set nf [ open out.nam w ]
$ns namtrace-all $nf
proc finish { }
{
  global ns nf
  $ns flush-trace
  close $nf
  exec nam out.name &
  exit 0
}
set n0 [ $ns node ]
set n1 [ $ns node ]
$ns duplex-link $n0 $n1 10ms DropTail
$ns at 5.0 "finish"
$ns run
%

I saw a lot of these kind in ns-mailing list with no proper solution.. so i resorted to LQ, my favourite

Hai Vivek..

After installstion.
i think u need to un the following commands.
First u need to save a tcl program in Bin folder.after that run this command

./ns filename.tcl

then it will create .tr and .nam file automatically in bun folder.
then u need to run

./nam filename.nam (example out.nam).

i think it will solve ur problem........

202eng · 01-29-2009, 10:43 AM

I had the same error and here's what worked for me.
Enter the command directly at the home prompt, do not first open ns.
Here's what I'm saying:

[USERNAME@localhost ~]$ ns example1.tcl

Good luck

shojaru · 03-06-2009, 06:13 AM

Quote:

Originally Posted by mrbhush

Hai Vivek..

After installstion.
i think u need to un the following commands.
First u need to save a tcl program in Bin folder.after that run this command

./ns filename.tcl

then it will create .tr and .nam file automatically in bun folder.
then u need to run

./nam filename.nam (example out.nam).

i think it will solve ur problem........

I did follow ur steps. but when I type ./nam out , it says:

"Cannot connect to existing nam instance.Starting a new one...
nam: Unable to open the file "out.nam" "

subicutipe · 02-16-2011, 12:25 PM

helo all,,
I m new to dis,and starting from the scratch.
Can u please tell which version of linux i must install to get best configuration of NS2