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Re: Reg Instances!

To: nv-l@lists.tivoli.com
Subject: Re: Reg Instances!
From: lclark@us.ibm.com
Date: Thu, 13 Jul 2000 08:51:16 -0400

The MIB Application that comes with Netview (on AIX it is under
Monitor...MIB Values..Interface Info) shows selected info from the
MIB II Interface table. One useful column is missing, and that is the
ifIndex column. I always use the MIB Application Builder to modify
the appl and add that column. The MIB Application Builder will
take you to a dialog similar to the MIB Browser, where you can walk
down the mib tree (mgmt, interfaces, etc). Add the ifIndex variable.
Now when you run that mib appl you will see which Interface description
goes with which index.

This information is also in the tool 'Monitor..Network
but that uses the rnetstat command, which only displays physical

You can use that index number to match up entries in the address table
as well. Compare the output of 'Monitor..Network Configuration...Addresses'
with the output of 'Monitor..MIB Values..Interface Info'.

The index number is supplied by the snmp agent on the network device.
I understand that with some makers (eg Cisco), the index numbers can change
under some circumstances. So you have to keep an eye on it when you
make changes to the device configuration. Historical data may not match
newly collected data, since all data is reported by the device based on
index number.


Leslie A. Clark
IBM Global Services - Systems Mgmt & Networking

"M Robert Prakash" <robertprakash@chennai.tcs.co.in>@tkg.com on 07/13/2000
04:22:28 AM

Please respond to IBM NetView Discussion <nv-l@tkg.com>

Sent by:  owner-nv-l@tkg.com

To:   IBM NetView Discussion <nv-l@tkg.com>
Subject:  [NV-L] Reg Instances!

Dear All

I have been monitoring my Network with Netview for NT v5.1.1.When we see
object properties for any router,in the Collected Data tab for Bandwidth
Utilization the values are mentioned for every instance.So far I have
that each instance is the port of the Router in the order it is listed when
open the router submap. Now to a certain Router we added additional
to get more Serial ports.Now when I see the object properties the value for
instance does not match with the value it is supposed to have.Well thats
story.If it is confusing,pls answer just the question given below.

My question is how do I know which port(Ethernet or Serial and the number
Serial 1 Serial 2 etc) of the router an instance represents?

Thanks in advance for any help...


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