Hi all,
it seems that we've found the problem. Windowing at SMSC was still set to 1, so it was possible that in a heavy work situation one of the messages was ignored by the SMSC and got no answer... I still don't know why kannel doesn´t detect the missing ACK, but I'm hoping the problem won't show up again.
Regards,
Holger
> _____________________________________________
> Von: Wessels, Holger
> Gesendet: Donnerstag, 21. Februar 2008 16:14
> An: '[email protected]'
> Betreff: EMI2: failed to detect missing (N)ACK
>
> Hi,
> we found some problems with our EMI2 SMSC connection to T-Mobile. Yesterday, (at least) one message (of 1500) was sent, but was not acknowleded by the SMSC. Unfortunately the normal 60 sec detection for (N)ACK didn't work (timeout happens a dozend times a day), and the message stayed in store until we restartet kannel a few minutes ago. We're using a windowing of 4 , and the log shows for the same second an KeepAlive-Request which is yet unanswered (which might cause a problem for the SMSC). Part of logfile is attached. Do you know why this happens?
> < Datei: logausschnitt.txt >>
> Regards,
> Holger Weßels
> T-Systems
>
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