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Re: [ns] Segmentation fault in Nortel's Diffserv Module

To: "Xuan Chen" <[email protected]>
Subject: Re: [ns] Segmentation fault in Nortel's Diffserv Module
From: "Xiang" <[email protected]>
Date: Wed, 21 Mar 2001 10:15:14 +0800
Cc: <[email protected]>
References: <[email protected]>
Sender: [email protected]
Hi,
Thank you for your reply. The complete script is attatched here. Thank
again.
Xiang

 ----- Original Message -----
From: "Xuan Chen" <[email protected]>
To: "Xiang" <[email protected]>
Sent: Wednesday, March 21, 2001 2:18 AM
Subject: Re: [ns] Segmentation fault in Nortel's Diffserv Module


> send me the complete script, so that I can have a look at it. Thanks.
>
> -chen xuan
>
> On Tue, 20 Mar 2001, Xiang wrote:
>
> > Hi,
> > I am using Nortel's Diffserv module to do some experiments, but I met
> > 'segmentation default (core dumped)' when I tried to add two physical
> > queue (each has 3 virtual queue). Related TCL scripts are listed below,
> > could any body tell me why segmentaion fault happed? Thank you very
> > much!
> >
> > #  This script is modifed from ds-cbr-trtcm.tcl
> > set ns [new Simulator]
> >
> > set cir0  1000000
> > set cbs0     2000
> > set pir0  1000000
> > set pbs0     3000
> > set rate0 3000000
> > set cir1  1000000
> > set cbs1     2000
> > set pir1  1000000
> > set pbs1     3000
> > set rate1 3000000
> >
> > set testTime 85.0
> > set packetSize 1000
> >
> >
> > # Set up the network topology shown at the top of this file:
> > set s1 [$ns node]
> > set s2 [$ns node]
> > set e1 [$ns node]
> > set core [$ns node]
> > set e2 [$ns node]
> > set dest [$ns node]
> >
> > $ns duplex-link $s1 $e1 10Mb 5ms CBQ
> > $ns duplex-link $s2 $e1 10Mb 5ms CBQ
> >
> > $ns simplex-link $e1 $core 10Mb 5ms dsRED/edge
> > $ns simplex-link $core $e1 10Mb 5ms dsRED/core
> >
> >
> > $ns simplex-link $core $e2 5Mb 5ms dsRED/core
> > $ns simplex-link $e2 $core 5Mb 5ms dsRED/edge
> >
> > $ns duplex-link $e2 $dest 10Mb 5ms CBQ
> >
> >
> > $ns duplex-link-op $s1 $e1 orient down-right
> > $ns duplex-link-op $s2 $e1 orient up-right
> > $ns duplex-link-op $e1 $core orient right
> > $ns duplex-link-op $core $e2 orient right
> > $ns duplex-link-op $e2 $dest orient right
> >
> >
> > set qE1C [[$ns link $e1 $core] queue]
> > set qE2C [[$ns link $e2 $core] queue]
> > set qCE1 [[$ns link $core $e1] queue]
> > set qCE2 [[$ns link $core $e2] queue]
> >
> > # Set DS RED parameters from Edge1 to Core:
> > $qE1C meanPktSize $packetSize
> > $qE1C set numQueues_ 2
> > $qE1C setNumPrec 3
> > $qE1C addPolicyEntry [$s1 id] [$dest id] trTCM 10 $cir0 $cbs0 $pir0
> > $pbs0
> > $qE1C addPolicyEntry [$s2 id] [$dest id] trTCM 18 $cir1 $cbs1 $pir1
> > $pbs1
> > $qE1C addPolicerEntry trTCM 10 12 14
> > $qE1C addPolicerEntry trTCM 18 20 22
> > $qE1C addPHBEntry 10 0 0
> > $qE1C addPHBEntry 12 0 1
> > $qE1C addPHBEntry 14 0 2
> > $qE1C addPHBEntry 18 1 0
> > $qE1C addPHBEntry 20 1 1
> > $qE1C addPHBEntry 22 1 2
> > puts "qE1C addPHBEntry OK!"
> > ~~~~~~   I get OK message here
> > $qE1C configQ 0 0 80 100 0.02
> > $qE1C configQ 0 1 60 80 0.10
> > $qE1C configQ 0 2 40 60 0.20
> > $qE1C configQ 1 0 20 40 0.10
> > puts "OK!"
> > ~~~~~~ I get OK message here
> > $qE1C configQ 1 1 10 20 0.20
> > puts "OK!"
> > ~~~~~~  NO OK message, segmentation fault here
> > $qE1C configQ 1 2 5 10 0.30
> >
> >
> >
> >
>
> --
> Xuan Chen
> USC/ISI
>


begin 666 test.tcl
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1:7-H(@T*#0HD;G,@<G5N#0H`
`
end
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