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RE: trace Average Queue Size in RED



Thanks for the prompt reply. 

I look at the ns documentation but I couldn't find how to access my queue 
instance.  I just defined the queue in this line.

     $ns duplex-link $n1 $n2 3Mb 10ms RED

how can I define the  variable $redq  to this queue?

     set redq .........?
     set avgque [$redq set ave_]
     puts " Average Queue Size = $avgque "

Thanks again,

Fusun.

> X-Authentication-Warning: mash.CS.Berkeley.EDU: majrdomo set sender to 
[email protected] using -f
> From: "Jeremy Ethridge" <[email protected]>
> To: [email protected]
> Subject: RE: trace Average Queue Size in RED
> Date: Thu, 10 Jun 1999 07:52:39 -0500
> MIME-Version: 1.0
> 
> Hi Fusun,
> 
>     The RED TCL parameter for the instantaneous weighted average queue size
> is ave_.  So, if the variable $redq is set to the queue that you want to
> monitor, then the command
> 
>     [$redq set ave_]
> 
> will return the current value of the weighted average queue size.  Please
> note that you do not want to access simply Queue/RED; instead you must
> access the particular queue instance for the link between $n1 and $n2. 
> 
>     The mean_pktsize_ parameter should be set to the mean size, in bytes, of
> the packets that will enter this queue.  The RED algorithm uses this
> parameter to adjust the weighted queue average when the link is idle.
> 
> Jeremy Ethridge,
> Computing Technology Lab,
> Nortel Networks.
> 
> 
> > -----Original Message-----
> > From:	Fusun Inanc [SMTP:[email protected]]
> > Sent:	Wednesday, June 09, 1999 5:35 PM
> > To:	[email protected]
> > Subject:	trace Average Queue Size in RED
> > 
> > 
> > 
> > Hi,
> > 
> > I created a link which uses RED queue algoritm. And I want to trace
> > average 
> > queue size . How can I do that? 
> > 
> > I used the following , but it doesn't help...
> > 
> > $ns duplex-link $n1 $n2 3Mb 10ms RED
> > set avgque [Queue/RED set mean_pktsize_]
> > puts " Average Queue Size = $avgque "
> > 
> > Thanks in advance..
> > 
> > Fusun Inanc
> >