It sounds to me like netmon is getting behind and never catching up.
Has anything bad happened to your name resolution lately? Have
you perhaps lost your default community configuration? If you
get nothing in the trace when you say 'netmon -M -1' try turning on
tracing right from the get-go, using the Tivoli context menu to turn it on.
That will stop/start netmon, and you will see the stuff it does at the very
beginning. There will be a lot of 'fixup' records as it compares the
snmp configuration entries to every single object in the database.
Those should whiz by. If they don't, then you might have a name
resolution problem. You should also see it doing a configuration poll,
if you have config polling turned on. Those will go badly if you have
community problems. Also, you might check and see if you recently
discovered a ton of things that don't meet your seedfile criteria, like
stub objects for things you are excluding (non-snmp things, certain
explicit oids, etc.) These things are checked on the daily config poll
to see if they now meet the criteria.
There is also a situation that has recently been identified with hsrp
interfaces. If you remove an hsrp address from the network but
don't tell Netview about it, it can go into a spin on its five-minute
hsrp poll. You should be able to see in the trace if that is happening.
Cordially,
Leslie A. Clark
IBM Global Services - Systems Mgmt & Networking
(248) 552-4968 Voicemail, Fax, Pager
---------------------- Forwarded by Leslie Clark/Southfield/IBM on
01/10/2000 09:46 PM ---------------------------
Chris McBride <ChrisM@RIGROUP.COM>@UCSBVM.UCSB.EDU> on 01/10/2000 11:40:54
AM
Please respond to Discussion of IBM NetView and POLYCENTER Manager on
NetView <NV-L@UCSBVM.UCSB.EDU>
Sent by: Discussion of IBM NetView and POLYCENTER Manager on NetView
<NV-L@UCSBVM.UCSB.EDU>
To: NV-L@UCSBVM.UCSB.EDU
cc:
Subject: NV5 netmon problem
> I have a problem with netmon that's cropped up the last day or so.
netmon
> does not appear to be working correctly. It does detect devices going
> down, but then never detects them going back up, and never issues a
> netview trap. I've tried rebooting, restarting netmon numerous times,
but
> it's not had any effect. ovstatus indicates that all the daemons are
> running fine, nv6000.log doesn't have any errors, there's nothing funny
in
> trapd.log. I tried enabling the netmon trace with "netmon -M -1" and the
> netmon.trace file gets NOTHING added to it, even after 30 minutes or so.
> The seedfile looks good, and normal, no configuration change was made as
> far as I know.
>
> What could be the problem? Anyone have any ideas on where to look? The
> system is NV5.0 on Aix 4.2 with the Y2k patches.
>
> Thanks.
>
>
> ----
> Chris McBride
> Network Engineer
> webcasts.com Network Solutions Group
>
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