[ns] link utilization

[Ashraf Matrawy <amatrawy@sce.carleton.ca>]

I am trying to plot  a link utilization like the example

test-suite-intserv.tcl

using the method trace-util.


In the example, it is defined as a method of  an Intserv link

#Set up queue-monitor to measure link utilization and drop rates
set f [open out.tr w]
set f1 [open eee.e w]
set qmon [$ns monitor-queue $n0 $n1 $f1]
set l01 [$ns link $n0 $n1]
$l01 set qBytesEstimate_ 0
$l01 set qPktsEstimate_ 0
$l01 set sampleInterval_ 0
$ns at 100 "$l01 trace-util 0.5   $f"


I am trying to plot the link utilization for a link that is not an
Intserv
link. I searched the list archive and the tcl examples of NS , nothing
useful

any help is really appreciated


Thanks a  lot


Ashraf