RE: 3.2 CA dropping connections V4R3

I am experiencing the same symptoms you have.  It is my feeling, however, that 
the sessions are dropping immediately, and it takes
some time (15 - 40 sec) for the client to realize the session is gone, which is 
when you typically see 658 on the status line and an
immediate re-connect.  If you watch the status messages (I'm on Express) you 
will see constant attempts to re-connect.  My shop is a
mixture of IP and IPX, with no TR.  Mixture of 10-100mb also.  Several switches 
and routers involved.  Unfortunately, a mixture of
vendors also.  When IP goes away, so does IPX.  It happens to me when I'm at 
the office, and more often when I'm home on an ISDN
line, going through two Ascend routers.  Based on this, I'm thinking the 
problem is at least a layer below these protocols.  I've
seen some brief discussions of routers that broadcast causing this, but don't 
know how to "see" that without a hardware sniffer.  I
do have Net XRay (a software "sniffer"), but I am not that familiar with it, 
and I am told it is limited to the network segment that
I am on.  We're at V4R4 (what Rochester calls "the PTF release") necessarily at 
the latest cume level.

Alex A. Moore ~ CIO
Ellis Hosiery Mills, Inc.
alexm@ellishosiery.com <mailto:alexm@ellishosiery.com>

We're in the process of converting from token ring to 100mb ethernet.
Currently, we have things hung together so that one of our servers handles
all of the routing to and from the AS/400, and it doesn't really matter if
CA specifies the ethernet or token ring interface address. Trouble is,
since we brought up ethernet, CA sessions will lock periodically for 20-45
seconds and then drop their connection. It doesn't matter if the device is
in use or idle. After a connection drops, if you click connect in the
connections menu, you get a login display immediately. Telnet timeout is
disabled (0). Keepalive is set for 40 seconds. I suspect that the problem
is the server that is our temporary router, but I have to ask. Does anyone
know of anything on the 400 that would cause CA sessions to drop like this,
especially having something to do with activating an ethernet interface, or
running ethernet and token ring interfaces simultaneously? We are using IP
exclusively, and are at V4R3. We're (intentionally) one cume back.

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