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_bulletin0900aecd80157bb5.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
--
Beat Rubischon \|/ See http://www.rubis.ch/~beat/ for
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