On Tue, Sep 28, 1999 at 08:38:57PM +0200, Dag Brattli wrote:
> Florian Lohoff <[EMAIL PROTECTED]> writes:
> 
> > On Tue, Sep 28, 1999 at 10:08:30AM +0200, Dag Brattli wrote:
> > > o Fixed bug which prevented incomming connections
> > > 
> > > PS. The latest 2.3.18ac series contains some bug-fixes to IrCOMM, so it
> > > could be worth a try if you have problems with IrCOMM.
> > 
> > Is this concerning some MTU problems ? I discovered this with
> > doing UUCP over GSM S25 (ircomm). I had problems with non standard
> > settings in the frame size (default: 64 tried: 1024) 
> 
> Hmm, I'm not sure what you are asking about, but the MTU problem was only
> that IrCOMM (and other IrDA services) would just use 2 bytes less than
> whats allowed in a full sized frame. Everything would therefore work OK,
> but performance would in some cases be less than optimal. 
> 
> As for services running on top of IrCOMM, I can only say that IrCOMM is a
> STREAM protocol and does not have any concept of frame/packet sizes,
> message boundaries etc (it will split/join data as necessary), so framing
> _must_ be taken care of by the service running on top of IrCOMM (like PPP
> which does HDLC).

Hmmm - There must be a problem somewhere. I tried to backup and restore
the Phonebook from my S25 via ircomm and wrote an expect script
round "cu".

For backup everything works ok. Send small AT command <10 Chars and
get a big answer (>50 Chars).

When trying to restore the Phonebook you have to send larger AT Commands
>50 Chars and suddenly you get not an OK - You get an ERROR.
I havent seen the reason so i tried to send every single char and suddenly
it worked without Errors.

Even with Cut'n'Paste you could not restore the Phonebook so it seems
to be a buffer problem in the IRComm or possibly in the S25.

Flo
-- 
Florian Lohoff          [EMAIL PROTECTED]                  +49-5241-470566
  ...  The failure can be random; however, when it does occur, it is
  catastrophic and is repeatable  ...             Cisco Field Notice


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