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Re[2]: Discover

To: nv-l@lists.tivoli.com
Subject: Re[2]: Discover
From: Leslie Clark <lclark@US.IBM.COM>
Date: Thu, 16 Sep 1999 01:53:55 -0400
To get around problems with DNS, I would suggest that you override it with an
/etc/hosts
file. That will give you the reverse lookup. If you put all of the correct names
for those
addresses in the hosts file and delete and rediscover them you will know if the
problem
is caused by name resolution. In the file /etc/netsvc.conf, put the entry
hosts=local,bind
to make it check /etc/hosts before DNS.

For your other item, things that are not on the map, do this:
Make sure it is not in the map by using the Locate function (by selection name,
and by attribute of IP Address). Then ovstop netmon and do an ovtopofix -a.
This will get rid of partial nodes.  Then ovstart. You can check the object
database
with ovobjprint (see the man page). But perhaps that thing in the database is
just a partially discovered node. If you try to add the node (to the correct
level
of the map, of course) and it says it already exists, you can still go ahead and
add it. It adds a symbol for the object, which is what you are missing. Netview
should join them together and take over from there. When you add it, assuming
it is an IP device, be sure to go into the IP Map part of the dialog and OK the
ip attributes.



Cordially,

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

     Yes, my system is running on AIX...and because we are moveing from one
     IP domain over to another IP domain there is no reverse lookup zone
     for the new domain yet. NO, the ip address does not belong to the same
     device, if I telnet to the address displayed on the object I do get to
     different devices.

     Other question, is there a way to delete an object directly out of the
     object database. If i search for an Object I cant find it anywhere, so
     trying to add it the system tells me that the object already exist. I
     also cleanout the entire system..

     Thanks

     Lauritz


______________________________ Reply Separator _________________________________
Subject: Re: Discover
Author:  Discussion of IBM NetView and POLYCENTER Manager on NetView
 <NV-L@UCSBVM.UCSB.EDU> at INET-1
Date:    15-09-99 8:13 AM


Is your Netview on Unix or on NT? Discovery works a little differently on
each. Assuming it is Unix, (and all of my experience is on AIX), this can
be caused by one of two things:

1) The addresses really do belong to the same device and the snmp agent
on that device reports that fact in its address and interface tables. That is,
there is one snmp agent on the device and it is responsible for all of the
interfaces you are seeing.
or
2) The name resolution for the addresses/names you entered in the seedfile
actually resolve to the same names/addresses. Netview will make a 'guess'
based on naming alone, especially if there is no snmp on the device, or it
can't talk snmp because the community is wrong. (At 5.1 and 5.1.1).

Name resolution has to work consistently and in both directions. Check it
with 'host' and 'nslookup' commands, on the names and on the addresses.

Cordially,

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


     Hi list, I hope some one can help.

     I add to my seedfile a couple of exsta devices stop and start netmon
     and then Netview start discover the devices. The problem is Netview
     then binds the address to one opject which was pervious discovered. So
     if you do a display Object Information the object got 4 ip interfaces.
     I deleted the object as well but no luck.

     Anybody knows whats wrong.

     Thanks

     LAuritz


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