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NetView-T/EC-DNS Implementation Problem... HELP!

To: nv-l@lists.tivoli.com
Subject: NetView-T/EC-DNS Implementation Problem... HELP!
From: "Julio W. Troya" <julio_troya@HOTMAIL.COM>
Date: Mon, 24 Aug 1998 13:50:07 PDT
Reply-to: Discussion of IBM NetView and POLYCENTER Manager on NetView et alia <NV-L@UCSBVM.UCSB.EDU>
Sender: Discussion of IBM NetView and POLYCENTER Manager on NetView et alia <NV-L@UCSBVM.UCSB.EDU>
We are currently in the process of implementing DNS for our
NetView environment and have found a problem which we
cannot solve.

Our environment consists of a NetView (5.0) server which feeds
multiple interface-router events to T/EC (3.1), and here's where the
problem manifests itself.  Both servers are running with AIX 4.2.

Our NetView server is also configured as a secondary DNS server, and
whenever NetView resolves the host name to an IP address, it will
always return with a different primary IP address for the router.
It seems that it is selecting the next IP address in an "round-robin"
fashion.

Because we get a different IP address for each event, T/EC is unable to
correlate clearing events with old down events.  For example, T/EC
will receive a node down event:

      RG100BRA   10.0.7.131     Node down

when the clearing event arrives, the interface address will be
different, and
hence T/EC thinks it is a different device:

      RG100BRA   10.22.0.2      Node up

I have included the response to two nslookup commands, the second
executed immediately after the first.  As you can see, for each
command, we get a different IP address as the first interface in the
router.

     > nslookup RG100BRA
     Server:  localhost.bns
     Address:  127.0.0.1

     Name:    RG100BRA.corp.bns
     Addresses:  10.0.7.131, 10.22.0.2, 10.22.0.6, 10.170.0.1
               10.171.0.1, 10.0.12.3, 10.0.4.189


     > nslookup RG100BRA
     Server:  localhost.bns
     Address:  127.0.0.1

     Name:    RG100BRA.corp.bns
     Addresses:  10.22.0.2, 10.22.0.6, 10.170.0.1, 10.171.0.1
               10.0.12.3, 10.0.4.189, 10.0.7.131

1. We would like to know if there is a way to 'force' NetView to use
   a specific IP address as the primary IP address for the router,
   without having to use the /etc/hosts file?

2. Has anyone implemented DNS, NetView and T/EC successfully?

3. Is there a Redbook which describes this type of implementation?

Any help will be greatly appreciated.



Julio W. Troya
Associate Technical Specialist
Enterprise Systems Management
Bank of Nova Scotia
Scarborough, Ontario, Canada
Tel: 416-701-7144
Fax: 416-288-4400
E-mail: julio_troya@hotmail.com


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