Re: [ns] link utilization

[Debojyoti Dutta <ddutta@ISI.EDU>]

You could write a simple awk script to calculate the link bandwidth every
1 sec and calculate the utlization. It shouldnt be mroe than a couple of
lines of code. 

Debo

On Wed, 28 Feb 2001, Ashraf Matrawy wrote:

> 
> 
> 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
> 
>