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Date:      Thu, 15 Oct 1998 10:26:48 +0200
From:      Christoph Kukulies <kuku@gilberto.physik.RWTH-Aachen.DE>
To:        Wolfgang Helbig <helbig@Informatik.BA-Stuttgart.DE>, freebsd-isdn@FreeBSD.ORG, kuku@gilberto.physik.RWTH-Aachen.DE
Subject:   Re: no call outgoing
Message-ID:  <19981015102648.B12263@gil.physik.rwth-aachen.de>
In-Reply-To: <199810142318.BAA08746@RVC1.Informatik.BA-Stuttgart.DE>; from Wolfgang Helbig on Thu, Oct 15, 1998 at 01:18:48AM %2B0200
References:  <199810142318.BAA08746@RVC1.Informatik.BA-Stuttgart.DE>

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On Thu, Oct 15, 1998 at 01:18:48AM +0200, Wolfgang Helbig wrote:
> >
> >
> > The following situation I'm observing often times:
> >
> > i4b was instantly trying to connect but the remote side was closing 
> > the call (no circuit available) - I'm not sure whether this
> >
> > a) costs a unit each time?
> 
> no

Reason why I was asking was: the message was call cleared (remote) or
something so I thought it got through to the remote.

> 
> > b) was caused by the remote site not being available at that time
> >    or there wasn't a B channel available at my site locally. 
> 
> No B channel available. Local and/or remote.
> 
> >
> > - anyway, after such a situation when my local i4b was trying repeatedly
> > (in a few secs distance) without getting a line and giving up I let it
> > rest for a couple of minutes, say half an hour.
> >
> > When I then retry I don't get a TEI or whatever is involved.
> > I have to reboot the machine. After that, I can dial out immediately.
> 
> Possibly the buffer queue allocated to the interface by the
> IP subsystem is filled with undeliverable IP datagrams. To do
> a "ifconfig ipr0 down" followed by an "ifconfig ipr0 up" (substitute
> ipr0 by isppp0 if you use PPP) should suffice. If not, you'll need to
> debug.
> 
> >
> > So I suspect there is some leak in buffers or something. I'm willing
> > to debug this situation if someone can tell me how to enable
> > senseful debug information for this situation.
> 
> Turn on heavy logging by "isdndebug -l1 -s0xffff and do a ping
> to a computer reachable via ISDN. If no output fills your console
> immediately, the IP subsystem didn't reach through the ISDN subsystem.
> So you get a hint, where to look further.

Thanks. That's a good way to proceed.

> >
> 
> Wolfgang

-- 
Chris Christoph P. U. Kukulies kuku@gil.physik.rwth-aachen.de

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