We upgrade a TSM client from ADSM 3.016 to TSM v. 3.7.2.17. Ever since
the upgrade, the client has been experiencing session lost:

This is from the dsmsched.log:
07/18/2001 08:18:50 TcpRead(): recv(): errno = 10058
07/18/2001 08:18:50 sessRecvVerb: Error -50 from call to 'readRtn'.
07/18/2001 08:18:50 ANS1809E Session is lost; initializing session
reopen procedure.

It seems that the sessions will lose when files larger than 79MB was
being backed up.

This did not happen when we used ADSM 3.1.06.

We modified the dsm.opt during our upgrade to use all-local, instead of
specifying the domains. The current include-exclude file acutally
exclude few files.

The network throughput was also different before and after the
upgrate:

Before upgrade: 07/01/2001 06:44:34 Network data transfer rate:   48.04
KB/sec
07/01/2001 06:44:34 Aggregate data transfer rate:   154.44 KB/sec

After upgrade:

07/13/2001 14:10:02 Network data transfer rate:      28.74 KB/sec
07/13/2001 14:10:02 Aggregate data transfer rate        130.99 KB/sec

Any suggestions ?