That is correct. If the Netview box cannot ping it, it will not add it to
the map. Often you will find for a pix firewall, where pinging is
not allowed but snmp from the management station is, you must
add the device to the map by hand, then Netview will take over
completing it and managing it via snmp, provided the $ directive
is in the seedfile.
What traffic is it that you are concerned about? Netview does
NOT go out and ping every possible address in the network.
In the discovery process, it goes after things it hears from,
things it finds in other things' routing tables and arp cache,
things in the seedfile, etc, on a periodic basis. I've never heard
complaints about netmon's pinging causing too much traffic.
SNMP is a lot more traffic than ICMP. That's why it is usually
not a good idea to enable SNMP status polling for all devices.
I think pings are relatively cheap.
Anybody else?
Cordially,
Leslie A. Clark
IBM Global Services - Systems Mgmt & Networking
Detroit
jmfrancoz@soluzio
na.com To: nv-l AT lists.tivoli
DOT com
cc:
04/30/2002 08:24 Subject: Re: [nv-l] SNMP
Discover
AM
Last thing:
Then, every node must be discover using ping (ICMP trafic) ???
Is there another discovering option which avoid this kind of traffic??
Thank you very much:
Jose M.
"Leslie Clark" <lclark AT us.ibm DOT com> con fecha 30/04/2002 14:01:22
Destinatarios: nv-l AT lists.tivoli DOT com
CC:
Asunto: Re: [nv-l] SNMP Discover
The detail you are missing is this:
$xx.xx.xx.xx is just a directive telling netview how to poll
that particular device IF it ever discovers it.
xx.xx.xx.xx is a seed entry, telling netview to be sure to
discover the device at that address.
So to do what you want, that is, force discover AND poll
via snmp, you need BOTH entries.
Cordially,
Leslie A. Clark
IBM Global Services - Systems Mgmt & Networking
Detroit
jmfrancoz@soluzio
na.com To:
nv-l AT lists.tivoli DOT com
cc:
04/30/2002 04:35 Subject: [nv-l] SNMP
Discover
AM
Hi all
In my Netview environment I would want to discover cisco routers just for
SNMP instead of normal ping (ICMP).
After an installation by default (Netview 6.0.2 on Solaris 2.6 platform) I
put the "$" symbol with router entries in the seed_file.
Unfortunately the Netview system can´t discover these nodes, but if I
remove this symbol they are quickly discovered but (logically) using ICMP.
I know it is also possible putting "P" in the oid_to_type file, but I would
like to use first option.
Does anyone could help me?
Thanks in advance:
Jose M.
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