Netview DOES do ping sweep methodology for autodiscovery. You enter the
boundaries that you want it to 'sweep', in your seed file, and at a set
interval, it ping's all possible IP addresses in that seed file and not in
your current database. Any ping that responds causes netview to create a
node for it.
You need to put the ranges in your seed file.
Will NetView discover a node automatically if its router has been left out
of its seed file?
Art DeBuigny
debuigny@dallas.net
-----Original Message-----
From: Marco Mommers <marco.mommers@EUROCONTROL.BE>
To: NV-L@UCSBVM.UCSB.EDU <NV-L@UCSBVM.UCSB.EDU>
Date: Thursday, April 15, 1999 11:02 AM
Subject: TME NetView ping sweep
>As far as I understand TME NetView is NOT applying ping sweep mechanisms
for node
>discoveries, neither for :
> 1. Automatic new node discoveries nor for
> 2. Seed file discoveries (address ranges or wildcards are used as
filters).
>
>So network components having an IP address but not using it for
communication will
>not be discovered unless implicitely defined in the seed file. So what to
do in the
>following (theoretical) cases:
>
> 1. Bridges operate on Layer 2, some of them have an IP address such
that
>they can be managed using SNMP. However if the SNMP agent has nothing to
report for
>e.g. a time longer then the ARP flush time of its communication partners,
NetView
>will not be able to discover such a bridge unless its IP address is
implicitely
>listed in a seed file. But I don't like the issue that I have to update my
seed when
>I add such a bridge for example.
>
> 2. A hot standby system which is not supposed to communicate unless
its
>detects an outage of the main system for which it acts as standby.
>
>So I guess to solve such a kind of problems I have two possibilities:
> 1. Use the seed file.
> 2. Use a script file (or whatever) performing a (limited) ping
sweep (= just
>trying IP addresses in a certain range) at regular intervals from the
management
>station. I know this is quite constly in terms of band-width and execution
time.
>
>--
>-----------------------------------------------
>- Marco Mommers -
>- Eurocontrol Maastricht UAC -
>- Engineering division -
>- Horsterweg 11 -
>- NL-6191RX Beek (l)a -
>- Work : Phone : +31 (0)43 3661 376 -
>- Fax : +31 (0)43 3661 300 -
>- email : marco.mommers@eurocontrol.be -
>- Home : Phone : +31 (0)43 3540 080 -
>- PC : +31 (0)43 3540 041 -
>- email : mommers@cobweb.nl -
>-----------------------------------------------
|