You don't give enough info and I don't blame you so here is a generic
list of gremlins which may be loose in your network.....
1. Has any core network infrastructure changed?
2. Are the timeout Alerts coming from a single or a few servers in the
same geographic or topological area or all areas?
3. Though you have tried installing SA on another server is this new
server running the latest updates. It May be that a new M$ or AV or
other patch has slowed networking.
4. What other possible changes have been made to affected servers e.g.
software/hardware upgrades, patch management, new software, new
switches, mismatched managed switches e.g. netgear and 3com on same
network segment (breaks ability to auto build spanning trees and
management traffic between switches doesn't work).
5. Try running wireshark on different network segments a look for
network storms.
6. Actually go and look at your network switches normally the lights
will be flashing randomly but if you see a switch with constantly lit
activity on all ports you may have an overloaded switch. I have seen
this when a netgear switch was double connected to a 3com switch - this
produced a network loop with both switches effectively saying this way
to each other for a single infinite ping packet let alone all the other
traffic.
7. Log onto all managed switches and check throughput on all ports.
8. Make sure a firewall isn't in the way and messing with your traffic.
9. Has anyone deployed a deep packet inspection device or enabled DPI
on a firewall.
There is loads of stuff to check but hopefully this list will give you a
few ideas.
Mark Perry
Systems & Networks Administrator
Telephonetics VIP Ltd
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-----Original Message-----
From: Servers Alive Discussion List [mailto:[EMAIL PROTECTED] On
Behalf Of Frank Schnell at home
Sent: 07 October 2008 18:35
To: Servers Alive Discussion List
Subject: [SA-list] Error code 1460
Hello all,
we are running since a few years a SA instance. Occasionally
there were false alerts when checking Windows process/services.
The extra informatiobn showed error code 1460 (time out)
even though the service was running happily. About 8 weeks ago
these false alerts increased to about 15 a day. Since a week
we have about 200 of these per day. The average time out value
is 2-3 seconds.
I do understand that this is not a time out problem with the
actual check settings in SA. I increased it to 300 sec and still
the same problem.
The problem lies somewhere else, but where? Could someone elaborate
on how that check is actually being performed. We do use authentication
data per check on Windows services/processes. From a Wireshark dump
I see that WMI is somehow involved. How can a analyse this problem?
We already installed SA on a different, brandnew computer, to ensure
it is not a problem with the computer SA is running on. No change.
Any hints, tips and tricks are welcome.
Tx
Frank
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