From: Brian Dennis (brian@labforge.com)
Date: Sat Mar 08 2003 - 15:26:09 GMT-3
Stefan,
You have it right. The "atm ilmi-pvc-discovery" command with the
"subinterface" option is used to automatically map the PVC to a
subinterface and isn't intended to be removed. In your case you
discovered the 9/120 PVC and the command automatically assigned it to
the .9 subinterface (VPI = subinterface #).
Your issue is something different. The PVC (VPI/VCI) was assigned to a
multipoint subinterface which means a method to "map" layer 3 (IP
address) to layer 2 (ATM VPI/VCI) is needed. You could use InARP or
manually map the layer 3 address to the layer 2 address. If a
point-to-point subinterface was used no mapping would be needed as all
layer 3 addresses are "mapped" to the one layer 2 address.
As a side note when using this command in the real world I've always
used it with point-to-point subinterfaces.
Brian Dennis, CCIE #2210 (R&S/ISP Dial/Security)
brian@labforge.com
http://www.labforge.com
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
stefan vogt
Sent: Saturday, March 08, 2003 7:19 AM
To: ccielab@groupstudy.com; Peter
Subject: Re: Re: atm ilmi-pvc-discovery
Hello Peter,
Thanks for your answer - seems I got the purpose of atm
ilmi-pvc-discovery completely wrong.
Just to confirm, you are saying that atm ilmi-pvc-discovery is just to
discover the vpi/vci pair and not for permanent use in a running config?
Thanks,
Stefan
"Peter" <peter@cyscoexpert.com> schrieb am 08.03.03 13:54:02:
>
> After discovering PVC remember the VPI/VCI pair, go ahead and remove
"atm
> ilmi-pvc-discovery subinterface" command from the major interface, go
back
> to the subinterface and create the PVC you just discovered with "pvc
> VPI/VCI" and type "inarp 1" under it. You should be able to ping the
remote
> side now.
> After all the exercise was to discover the PVC.
>
> _____________________________
> Peter
> #7247 (R&S, Security)
> CyscoExpert Corp.
> 4433 W. Touhy Ave. Suite 410
> Lincolnwood, IL 60712
> Phone (847) 674-3392
> Toll Free (866) CyscoXP (297-2697)
> Fax (847) 674-2625
>
>
> ----- Original Message -----
> From: "stefan vogt" <stefan-uwe_vogt@web.de>
> To: <ccielab@groupstudy.com>
> Sent: Saturday, March 08, 2003 5:50 AM
> Subject: atm ilmi-pvc-discovery
>
>
> > Hello all,
> >
> > Just playing around with atm ilmi-pvc-discovery.
> > My config looks like this:
> > interface atm 2/0
> > pvc 0/16 ilmi
> > exit
> > atm ilmi-pvc-discovery subinterface
> > exit
> > !
> > interface atm 2/0.9 multipoint
> > ip address 172.16.10.6 255.255.255.0
> >
> > This one looks good:
> > r#sh atm vc
> > VCD / Peak
Avg/Min
> Burst
> > Interface Name VPI VCI Type Encaps Kbps Kbps
> Cells Sts
> > 2/0 4 0 16 PVC ILMI 155000
> UP
> > 2/0.9 11 9 120 PVC-D SNAP 155000
> UP
> >
> > But ping to remote router fails. When doing debug ip packet:
> > 17:05:27: IP: s=172.16.10.6 (local), d=172.16.10.7 (ATM2/0.9), len
100,
> sending
> > 17:05:27: IP: s=172.16.10.6 (local), d=172.16.10.7 (ATM2/0.9), len
100,
> encapsul
> > ation failed.
> >
> > So I assume there is some mapping for the remote ip address missing.
I
> searched CCO, but found no hint how to do this when using atm
> ilmi-pvc-discovery...
> >
> > Any input is welcome.
> > -Stefan
> >
> >
>
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