RE: [swinog] ISDN Layer 2 Problem

This was once an issue some time ago...
Should not be anymore...We use 837's without Layer 2 permanently on.
Hmm, yep, I would try another IOS,we use 12.2.13ZH2, although this one has an issue
with NAT of PPTP sessions, but who's using PPTP ;-)
I also tested 12.3(8)T4 which also gives no problem...

If you should still have a problem after that, you still can ask Swisscom
to keep layer 2 up.

Christian

-----Original Message-----
From: swinog-bounces@lists.swinog.ch
[mailto:swinog-bounces@lists.swinog.ch]On Behalf Of Lukas Krattiger
(NOC)
Sent: Donnerstag, 3. März 2005 23:32
To: swinog@swinog.ch
Subject: RE: [swinog] ISDN Layer 2 Problem

Hi Beat

I agree to Roger.
There is a power-save mode which affects the ISDN-Layer2. At least the BRI's
from the old cisco2500 needed this feature, otherwise I saw the same
behaviour.
Go and ask Swisscom, they should activate the Layer2.

Cheers
-Lukas

-----Original Message-----
From: swinog-bounces@lists.swinog.ch [mailto:swinog-bounces@lists.swinog.ch]
On Behalf Of Roger Buchwalder
Sent: Donnerstag, 3. März 2005 23:12
To: swinog@swinog.ch
Subject: Re: [swinog] ISDN Layer 2 Problem

Hello Beat

I remember, we had also some problems with ZyXEL-ISDN-Routers.
We call then to the Swisscom, they may put the Layer 2 always to "on"-state.
Maybe it helps?

rog

Beat Rubischon schrieb:
> Hello!
>
> Am 03.03.05 schrieb Beat Rubischon:
>
>
>>I'm trying to configure a ISDN backup link on a Cisco.
>
>
> First, thanks a lot for your ideas. I have now debugged a lot and my
> results are the following:
>
> - It's not a problem in the wiring or termination.
>
> - Dial-Out is possible when Layer 2 is in state
>   "MULTIPLE_FRAME_ESTABLISHED" (aka an running call)
>   or "NOT Activated" (not initialized yet)
>
> - Dial-Out is not possible when Layer 2 is in state
>   "TEI_ASSIGNED", debugging shows that the communication
>   simple times out.
>
> I assume now a bug in the IOS - 12.3(8)YA [1] is an early deployment
> release. I hope to get my service contract soon to access other
> images.
>
>       [1]
> http://www.cisco.com/en/US/products/sw/iosswrel/ps5413/prod_bulletin09
> 00aecd80157bb5.html
>
> A disconnect of the S-Bus resets the Layer 2 and with the setting
> "isdn tei-negotiation first-call" no new TEI is allocated. So I will
> try to switch off Layer 1 - each time Swisscom shuts down Layer 1, my
> BRI would be resetted :-)
>
> May be someone has another idea. I have put the config and a logfile
> on [2].
>
>       [2] http://www.rubis.ch/isdn/
>
> Beat
>

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