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New Member

ISDN-connection to Turkey

Hello all,

I encounter ISDN-errors when i try to connect to a router in Turkey.

Sometimes the ISDN-connection is without any failures and the connection is set up in one time and sometimes is hard set up a ISDN-connection.

Sep 4 11:46:12.056: ISDN BR0 SERROR: L2_Go: at bailout DLCB is NULL

L2: sapi 0 tei 127 ces 0 ev 0x3

Any ideas what may be the problem ??

Kind regards

Edwin van Wijk

3 REPLIES
New Member

Re: ISDN-connection to Turkey

OK,

Turkey is now easy. I know it.....

Is on the remtoside (turkey) the router realy online?

Does the router have a own and fix isdn-number?

Does the company provide a own ISDN S0-Port of the ISDN-Router.

Does the company have enough ISDN-Numbers?

(some companys change isdn-numbers very fast, because they don`t have enougt isdn-numbers)

Good luck.....

Frank (Germany)

New Member

Re: ISDN-connection to Turkey

Hello Frank,

Yes, the remote-router is online.

I managed to configure a connection over the Internet from remote over ISDN.

We need an ISDN-connection as backup in case the connection over the Internet breaks down.

I can see on the remoteside, when i am testing the ISDN-connection, that the router picks up the call, this call last 20 secs and then ends with a 'normal call clearing' but in that moment i can not reach the router by ping or telnet via ISDN.

It seems to be an intermitted problem, sometimes it works and sometimes it does not.

Regards

Edwin van Wijk

Re: ISDN-connection to Turkey

van, it might be a problem with either layer 2 or layer 3. Please run a "debug ppp authentication" and "debug ppp negotiation" and see what exactly is the issue.

It might also be a problem with the IOS that you are running. Please post the results of these outputs.

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