RE: [nv-l] Newbie Question - Auto Map re-gen and Net MON

[Leslie Clark <lclark@us.ibm.com>]

We should get some input from others
on this. I would never say never. There have been times when certain Cisco
routers were badly affected by excessive SNMP requests. Core switches should
be a different case, I would think. My belief is that if you don't have
the network capacity for network management traffic, then you don't have
enough network capacity.  In that case, you could discover slowly.


Others may be able to warn you about
special vulnerabilities of specific devices. 

Cordially,

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

"John Sobrinho" <johnsobrinho@rogers.com>
Sent by: owner-nv-l@lists.us.ibm.com

03/14/2004 06:59 PM

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nv-l

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Subject	RE: [nv-l] Newbie Question - Auto Map re-gen and Net MON

Thank you Leslie..
 
Yes, I do have the need to do
a regen. 
 
Is my worry about any excessive
traffic bringing a device down unwarranted ? The reason why I ask, and
am a bit afraid is that my predecessor attempted to do a full discovery
and brought down a core switch in one of the buildings. Hence I am more
careful with my discovery needs, and setting them up accordingly.
 
We have an off site drp server,
but it uses is strictly as trap acceptor and sending alerts. We will not
support mapping and db functions in drp.
 
Hence my fear... 
 
Thanks again,
John
 
 
-----Original Message-----
From: owner-nv-l@lists.us.ibm.com [mailto:owner-nv-l@lists.us.ibm.com]On
Behalf Of Leslie Clark
Sent: Sunday, March 14, 2004 2:52 PM
To: nv-l@lists.us.ibm.com
Subject: Re: [nv-l] Newbie Question - Auto Map re-gen and Net MON


Otherwise, if you want to do a new discovery, the re-gen will stop netmon
and everything else, and go out and rediscover everything, depending on
your discovery settings. 

Cordially,

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

"John Sobrinho" <johnsobrinho@rogers.com>
Sent by: owner-nv-l@lists.us.ibm.com

03/14/2004 02:23 PM

Please respond to
nv-l

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Subject	[nv-l] Newbie Question - Auto Map re-gen and Net MON

Hello All... 
  
I have a newbie question. 
  
I'm in a situation where one of the net view servers has been neglected
for some time and the map and db is pretty much useless. I have cleaned
up the seed file, and removed as many entries from the host file as I can
as we would try to rely on DNS for resolution as well I have created a
Location conf file based on our ospf areas. 
  
What I'd like to accomplish is zero out the db's and create a new map and
have fresh db's (start from scratch). 
  
My question is , do I only need re-gen the map from the admin panel,  to
ensure everything is discovered, or do I need to recycle netmon, then do
a map regen ? 
  
My concern is that we have well over 1000 entries in the seed file (loop
back address of various L2 / L3 devices) and am concerned that the traffic
may bring down the switch or router, we are 7/24 hr shop so no chance of
doing this during maint. windows. Netview is configured to do only local
discovery and seed file, no wild card ranges defined.
  
The box is NV 7.1. AIX 4.3.3 on multiple 100 MB nics.
  
Thanks in advance 
  
John Sobrinho