Hi List,

for a few weeks one of our Exchange server full backup is failing.
We performed cli and gui FULL backups but each time the FULL backup
ends with the following error message:

dsierror.log :
ANS1017E Session rejected: TCP/IP connection failure
sessSendVerb: Error sending Verb, rc: -50
ANS1017E Session rejected: TCP/IP connection failure
sessSendVerb: Error sending Verb, rc: -50
ANS1017E Session rejected: TCP/IP connection failure
tdpexc.log:
Backup of storage group Storage Group 1 failed.
ANS1017E (RC-50)  Session rejected: TCP/IP connection failure
Retrying failed backups...
Backup of storage group Storage Group 1 failed.
ANS1017E (RC-50)  Session rejected: TCP/IP connection failure
Retrying failed backups...


Up to the failure >100GB were transferred to the TSM server.

We did not yet see any issues on the network card of the exchange
server though.
TSM is run on AIX. I just ftped a 100GB to the  AIX server successfully.

Which trace option will show if Exchange does not send data before
session times out ?

Thanks,
--Eg