I cannot tell you from here. I can only give you information on how
Netview works. It is telling you something about your network, but
you will have to puzzle out what that is.
You might try looking at /usr/OV/log/netmon.trace after turning
tracing on (netmon -M -1). There may be some clues in there.
Santosh, do you subscribe to the listserver? It would be best if
we corresponded via the listserver, since others may be able to
help. I see listserver notes just as quickly as I see direct notes.
Cordially,
Leslie A. Clark
IBM Global Services - Systems Mgmt & Networking
Detroit
z_esm_karekars
<z_esm_karekars@bharatpetr To: Leslie
Clark/Southfield/IBM@IBMUS
oleum.com> cc:
Subject: RE: [NV-L]
DPU Nodes reported Down/Up
09/17/01 06:58 AM by Netmon
Hi Les,
I had implemented this the same way U had mentioned my timeout is 80 sec.
and retry is 8, but still some nodes responds in trapd.log as Down and
within 2-5 sec. it will report again Up by Netmon. How can get rid of this.
Please reply ASAP if possible.
Regards,
Santosh
----------
From: Leslie Clark[SMTP:lclark@us.ibm.com]
Sent: Monday, September 17, 2001 4:24 PM
To: z_esm_karekars; NV-L@tkg.com
Subject: RE: [NV-L] DPU Nodes reported Down/Up by Netmon
The default is to ping. They are only polled via SNMP under these
circumstances:
1) you put them in the seedfile with $
2) you put a P flag in the oid_to_type file for that snmp sysobject id
3) the node is a router with an unnumbered serial interface that
connects
to another router with an unnumbered serial interface.
Therefore, if, as you say, the nodes are being polled via SNMP, and
they
are not snmp enabled, it can only be because you configured netview to
do
this by method 1 above. There should be no need to force it to go the
other
way, and so there is no method to do that, as far as I know. You can
tell
from
the output of demandpoll which way it is using to obtain interface
status
info
(as opposed to configuration info).
Cordially,
Leslie A. Clark
IBM Global Services - Systems Mgmt & Networking
Detroit
z_esm_karekars
<z_esm_karekars@bharatpetr To: Leslie
Clark/Southfield/IBM@IBMUS
oleum.com> cc:
Subject: RE:
[NV-L] DPU Nodes reported Down/Up
09/17/01 03:19 AM by Netmon
Hi Les,
Sorry to bother U again, Can U pls mail me the steps how can I
configure
and IP address to be polled for status through Ping and not through
SNMP
Status Poll.
Regards,
Santosh
----------
From: Leslie Clark[SMTP:lclark@us.ibm.com]
Sent: Friday, September 14, 2001 9:54 PM
To: z_esm_karekars
Subject: RE: [NV-L] DPU Nodes reported Down/Up by Netmon
Absolutely. If they are not snmp-enabled, then Netview cannot
poll
them
via SNMP. If I gave you the impression that they could, I
apoligize.
Only
snmp-capable things can be polled via SNMP. Remove the $ entries
in the seedfile, then stop and restart netmon. It should change
methods
on the next round, but if it does not appear to take effect right
away,
select a bunch of them and demandpoll them (from a smartet,
perhaps).
Cordially,
Leslie A. Clark
IBM Global Services - Systems Mgmt & Networking
(248) 552-4968 Voicemail, Fax, Pager
z_esm_karekars
<z_esm_karekars@bharatpetr To:
Leslie
Clark/Southfield/IBM@IBMUS
oleum.com> cc:
Subject:
RE:
[NV-L] DPU Nodes reported Down/Up
09/14/01 09:28 AM by Netmon
Hi Les,
As U had mentioned to enter $ in front of the IP Address of the
DPU's
Do U
suggest this as they are not SNMP complient ?, but the help in
seed
file is
not clear as follows. Should I try this to enable ICMP ping for
these
DPU's
in place of SNMP status poll ?
Please advice ASAP
Regards,
Santosh
# SNMP Status Support
#
# Nodes that have serial interface cards will automatically
use
SNMP
# to query for ifAdminStatus and ifOperStatus for ALL
interfaces
on
# that node. Specify other nodes you would like to use SNMP
to
query
# for status instead of ICMP pings here.
#
# Use the prefix '$', and use the same syntax for ranges and
wildcards
# described above for positive seed entries. For instance,
#
# $1.1.2-10.221-230
#
----------
From: Leslie Clark[SMTP:lclark@US.IBM.COM]
Reply To: IBM NetView Discussion
Sent: Friday, September 14, 2001 6:36 PM
To: IBM NetView Discussion
Subject: RE: [NV-L] DPU Nodes reported Down/Up by
Netmon
Are the events faster than your polling cycle (eg 5
minutes)?
If the up/down events are coming faster than your polling
cycle
then
there are two possibilities:
1) They are sending traps (link up, link down) and Netview
is
reacting
to
them,
and frequently catching them in an actual down state. Not
likely,
but
possible
2) Router Fault Isolator is running, and misbehaving due to
the
nature
of
you
network. Perhaps there is a route to that subnet that
Netview
cannot
see.
In
that case, you can turn off RFI by adding '-K 0' as a
parameter
in the
netmon.lrf file. The procedure is described in the 6.0.1
release
notes.
If the events are the same frequency as your polling cycle,
eg 5
minutes
apart, then it is either a timeout, or it has to do with the
difference
between
status via ping or status via snmpget. If these devices are
not
snmp
capable,
be sure you are not polling them via SNMP. For instance, if
you
entered
them in the seedfile with $, or put a P in the oid_to_type
file
for
them,
then
the demandpoll (or regular netmon poll) will turn them red,
but a
test...ping will
turn them green.
I know none of this sounds exactly like your situation, from
the
infomation
you have given us, but perhaps these clues will help you
figure
out
what
is going on.
Cordially,
Leslie A. Clark
IBM Global Services - Systems Mgmt & Networking
Detroit
z_esm_karekars
<z_esm_karekars@bharatpetr To:
"'IBM
NetView Discussion'" <nv-l@tkg.com>
oleum.com> cc:
Sent by:
Subject:
RE:
[NV-L] DPU Nodes reported Down/Up
owner-nv-l@tkg.com by
Netmon
09/14/01 07:56 AM
Please respond to IBM
NetView Discussion
Hi,
I tried setting the SNMP polling interval and timeout as
high as
possible
but still trapd.log gets updated with Netmon events for
these
DPU's at
very
fast Down/Up events. Where else could be the problem.
Regards,
Santosh
----------
From: Jane Curry[SMTP:jane.curry@skills-1st.co.uk]
Reply To: IBM NetView Discussion
Sent: Thursday, September 13, 2001 3:26 PM
To: IBM NetView Discussion
Subject: Re: [NV-L] DPU Nodes reported Down/Up
by
Netmon
Put an entry for these devices in your ovsnmp.conf
(Options
->
SNMP
Configuration). I would suggest increasing both the
timeout
interval
and also, perhaps, the retries if the lines are a
loss-y.
Cheers,
Jane
z_esm_karekars wrote:
Hi,
I have Netview 6.0.1 on AIX 4.3.3
We have almost 180 DPU (SNMP Not supported)
locations
on
slow
link in our Wide Network. It is reported in
trapd.log
that
very
frequently they go Down and come Up so fast (which
could be
because of slow link response). If I do a query to
database
for
these DPU's Up/Down status, it becomes a huge and
non
relevent
data.
Can I have some solution for this so that the
genuine
DPU
Down
and Up will be reported to trapd.log
Regards,
Santosh
--
Tivoli Certified Enterprise Consultant & Instructor
Skills 1st Limited, 2 Cedar Chase, Taplow, Bucks, SL6
0EU,
UK
Tel: +44 (0)1628 782565
Copyright (c) 2001 Jane Curry
<jane.curry@skills-1st.co.uk>.
All
rights reserved.
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