Re: Client Access Session Drops

["John Taylor" <jtaylor@xxxxxxxxxxxx>]

Hi Tom,

> But beyond that, how about some info on your physical setup? How many
> adapters are you interfacing with? And how many TCP/IP interfaces do you
> have defined? (You mentioned multiple subnets.) How many routes? (I've
seen
> troubles related to these questions.)  And I've lost track of your OS/400
> release.

The AS/400 contains a single adapter, single interface (besides the
loopback), and two defined routes. Both routes point to the same router on
the local subnet. Once at the router, the packets are in the hands of our
telecom provider, but a TRACERT consistently shows a direct path between the
local and remote routers, with no intermediary hops.

The WAN is fully monitored, and I have next day access to a variety of
reports that show me what's been happening on the comm links. Bandwidth
utilization is under 10%, with an average latency of 25ms. No discarded
packets or other errors show up on the reports. The only anomoly appears to
be an occasional spike in latency where network delay jumps to around 100ms.
However, this is happening in the wee hours of the morning, when nobody is
working.

OS/400 is currently V4R5, but problem has been apparent with V4R4, V4R3, and
possibly V4R2.

Yesterday morning, I changed the session keep alive timeout value to 1800
(30 min), and no one has reported a problem since. Now I'll just sit tight
and wait to see what happens.


John Taylor