Hi Dave,
I would start in this manner,
1. Tcom problem with a router/bridge/switch.  Your tcom person can check the 
logs
on the router, or put a  'sniffer' type device on the wire.
2.  Run a loopback on the  tcom adapter on the machine you are backing up.  I've
had multiple cases of  adapters  getting 'flakey'.
3.Check Netview on the MF to see if it is squaking about any ip network 
problems,
(and check its logs).
4.If you run TCP/IP on the MF, its logs are invaluable troubleshooting tools.

As you can tell, this has manifested itself to me as hardware problems in the
past.   Being on Ethernet/TCP/IP has negated our ability to do end to end diags.
About the only tool in this brave new world is 'Ping', and your experience (or
stuborn nature).

Good Luck, don't forget to enjoy the chase,





Dave.Fackler AT sea.siemens DOT com
07/30/98 11:13 AM


Please respond to ADSM-L AT vm.marist DOT edu

To:   ADSM-L AT vm.marist DOT edu
cc:    (bcc: J Brent Link/COGG/CSC)
Subject:  TCP/IP Failure w/ Backup from NT Client to MVS Server




Hi all.  I've been successfully backing up NT clients to ADSM Server running
on MVS.  The clients have ver. 2.1.0.6 of the NT client.  The server is
running 2.1.0.d.  Last night, the backup of the NT client failed with the
following in "dsmerror.log":
... 05:19am   TcpRead:  Zero byte buffer read.
... 05:19am   sessRecvVerb:  Error -50 from call to 'readRtn'
... 05:19am   ANS4017E Session rejected:  TCP/IP connection failure
Can anyone tell me what this might mean?  Is this a problem with TCP/IP on
MVS?  On the client?  Or is it indicative of a generate TCP/IP problem on
the network between the client and the server?  Or something else altogether
different?
Thanks for any help!!
Dave Fackler, MCSE, MCT
Senior Systems Consultant
IntelliNet Corporation
1998 Microsoft Southeast Partner of the Year
Phone at Siemens:       770.751.2240
Fax at Siemens:         678.297.7000
Email at Siemens:               dave.fackler AT sea.siemens DOT com
Visit IntelliNet's Web Site at http://www.intelli.net