Here's my two cents' worth on this subject. SNMP for status polling costs
more than ICMP in terms of bandwidth and in terms of CPU on the devices
being polled. It also may interfere with Netview's HSRP handling, since
HSRP interfaces do not appear in the interface table. It was originally
intended to provide a way to get status for unnumbered interfaces, which
cannot be pinged by definition. Therefore I take the approach of using it
selectively where it is needed: for unnumbered, of course, and also to get
accurate status of interfaces for which there is no routing - for example,
the second interfaces on servers that would otherwise appear red in the map
even though they are up. Netview will enable it automatically where needed
for unnumbered. I then enable it in the seedfile for nodes where it is
needed to make nodes green where they should be green.
If you enable it on a broad scale, watch it for a while and make sure the
devices respond in a timely fashion and also that netmon keeps up with your
chosen polling period.
Cordially,
Leslie A. Clark
IBM Global Services - Systems Mgmt & Networking
Detroit
"JR Miller"
<jmiller5@columbu To:
<nv-l@lists.tivoli.com>
s.rr.com> cc:
Subject: RE: [nv-l] NV 7.1.x
SNMP polling
04/28/2003 11:18
PM
Excellent!
Thanks for the info,
-JR Miller
-----Original Message-----
From: Gareth Holl [mailto:gholl@us.ibm.com]
Sent: Monday, April 28, 2003 22:55
To: JR Miller
Cc: nv-l@lists.tivoli.com
Subject: Re: [nv-l] NV 7.1.x SNMP polling
Yes, NetView can poll using SNMP and ICMP, but not the same device.
The typical configuration might be to poll your Routers using SNMP
and all other devices using ICMP. No redbooks covering new features.
Look through each of the Release Notes for 7.1 and then each of the
maintenance releases. You should find all the Release Notes on the
7.1.3 CD.
Gareth Holl
Staff Software Engineer
gholl@us.ibm.com
IBM Software Group - Tivoli Brand
Research Triangle Park, North Carolina.
"JR Miller"
<jmiller5@columbus.rr.com> To:
<nv-l@lists.tivoli.com>
cc:
04/28/2003 08:46 PM Subject: [nv-l] NV
7.1.x SNMP polling
Quick question, I have limited experience with newer NV versions.
Can NV 7.1.x poll devices using SNMP as well as ICMP? Has anyone
experienced any issues doing this, good or bad? This would involve
an AIX version, if that matters. Are there any Redbooks that cover
the new versions and features of NV?
Thanks for the input.
Jeffrey R. Miller
Open Systems Engineer
Bank One Corporation
1111 Polaris Parkway
Columbus, OH 43240
[IMAGE]
[IMAGE]
#### OVcert.bmp has been removed from this note on April 28, 2003 by
Gareth Holl
#### IV.bmp has been removed from this note on April 28, 2003 by
Gareth Holl
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