[ns] tcl error flowmon

[El hadi Cherkaoui]

hi all,

i have a tcl error when i run my script :

$tcp0 set fid_ 1                    
set flowmon [$ns makeflomon Fid]    
set getlink [$ns link $router0 $iface2]
   
$ns attach-fmon $lien $flowmon            
set fcl [$flowmon classifier]  

and the error is : 

 invoked from within
"_o3 cmd makeflomon Fid"
    invoked from within
"catch "$self cmd $args" ret"
    invoked from within
"if [catch "$self cmd $args" ret] {
set cls [$self info class]
global errorInfo
set savedInfo $errorInfo
error "error when calling class $cls: $args" $..."
    (procedure "_o3" line 2)
    (SplitObject unknown line 2)
    invoked from within
"$ns makeflomon Fid"
    invoked from within
"set flowmon [$ns makeflomon Fid]     

it seams that flowmon is not recognized  why ?