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how to structure a topology?

To: nv-l@lists.tivoli.com
Subject: how to structure a topology?
From: Leslie Clark <lclark@US.IBM.COM>
Date: Tue, 17 Nov 1998 09:53:15 -0500
Reply-to: Discussion of IBM NetView and POLYCENTER Manager on NetView <NV-L@UCSBVM.UCSB.EDU>
Sender: Discussion of IBM NetView and POLYCENTER Manager on NetView <NV-L@UCSBVM.UCSB.EDU>
Giscard, bad news. You are not allowed to add things to the IP Internet
submap.
Not if you expect the ipmap application to manage them. That is where they
add topologies to go with new management applications.

The problem you describe is well understood, but that is the way Netview
works.
You should express your interest in changing it by sending a note to
netview@tivoli.com.
The topology is arranged based on subnet masking, and that masking is
obtained
from the devices via snmp. Faking it is not likely to be successful, as far
as I know.

What you ARE allowed to do is break up the contents of the Network-level
submap
into multiple segments. This is kind of awkward, but it works and is
supported.

Drill down into your network 172.16.0.0 where you will see probably one
segment
(tokenring) with maybe routers and hubs attached to it and 800 nodes
inside.
On this submap you can add more segments of the same type. Give them
meaningful
names. Then open the class b segment, select a bunch of nodes, Cut (from
THIS submap)
pop over to the new segment and OPEN it, and paste there. You can probably
simplify
this by using the Locate function, then View...highlights...Select
Hightlights to select a
bunch of nodes with IP addresses of the right sort. You should read and
understand
the sections in the Admin guide that tell you what you can add where so you
don't
corrupt the database with improper cutting and pasting.

After going to all of this effort you will of course make a nice backup of
the datebases
so you don't have to do it again.

Cordially,

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



we have a token-ring class b with 800+ nodes. obviously the corresponding
map is not very helpful.
i tried to split the map-topology into class c segments.

my class b net is 172.16.0.0/16.
in the "IP Internet" map i added the object "IP Network" with the
label="172.16.10.0" and
set the Object Attribute "Network Subnet Mask" to 255.255.255.0.
now i expected netview to join all nodes from this logical subnet under the
new network-icon. but the new submap remains empty.
please don't tell me that i have swap the nodes manually into the new
topology schema.

i know i could accomplish this task via collections, but i have further
ideas which can't be defined that way
(e.g. showing the collision domains in bridged subnets).

Mit freundlichen Gruessen - Yours sincerely

Giscard Fuchs
CompuNet Berlin
System Engineering
Mariendorfer Damm 1-3, 12099 Berlin, Germany
Phone: +49 30 70785-147, Fax: +49 30 70785-130, Mobile: 0172/8212409
Internet: giscard.fuchs @ gecits-eu.com

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