I am using WhatsUp Gold to monitor about 80 devices on my network. It
is set to send a ping every 1 minute and monitor the response then
notify by - email, page, popup, log file when there is a missed ping. I
have most of my devices set to log all missed pings, but only notify
after 4 missed pings. We have one problem device that misses about 70
pings per day (there were 3 loss pings while writing this) and has been
doing this for about 4 weeks. I am monitoring 2 other devices on the
same subnet and 4 devices between WhatsUp and this device (I am also
pinging another 8 devices on the same side of the fiber link) with no
problems. Unfortunately the devices on the other side of the fiber are
controlled by my parent company and I have no direct access. My side is
all NT40 with Cisco (except one 3Com hub) running EIGRP with a fiber
link to the parent. The parent uses Bay with Novel (see below). I am
pinging devices 3, 4, 5, 7, 8, 9, 10, 11 and 12. 12 is the only one
that is showing the lost pings (we are seeing down time for any of the
users). The network admin for the parent says it is caused by
collisions on the ping itself. WhatsUp is set to wait 5 seconds for a
response to any pings. I have been out to cisco.com and can not find
much on ping other than how to, so I have two questions. 1. Does a
router rebroadcast a ping if there is a collision? 2. Anything else
you can think of that would cause this to happen on only the one device
out of the 80?
Devices/layout:
1) NT Workstation --->
2) Cisco 1900 10mg switch --->
3) Cisco 2900 100mg switch ---->
4) Cisco 2524 router --- T1 frame relay --->
5) Cisco 7505 in --->
6) 3Com Hub with Fiber transceiver - traffic in one port and out another
only --->
6A) 1/4 mile fiber 10mg --->
7) Bay switch --->
8) Bay Router in --->
9) Bay switch --- frame relay --->
10) Bay switch ---> internal fiber --->
11) Bay switch --- >
12) Novel Server
13) 30 NT workstations with no down time reported (mostly telnet
sessions)
Thank you for reading this long message, all help will be appreciated.
David Toalson
816-701-4142
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