On 7/21/2010 9:27 AM, John Neiberger wrote:
I used to used HP Network Node Manager at a previous employer and
thought it did a really good job of automatically mapping the network,
especially since it handled L3 and L2 discovery well after a bit of
tweaking. I'm at a new place now and I'm wondering if there are any
good automated mapping tools out there. I want to focus on Cisco
routers and switches. I don't need something to map every other device
on the network, so I'd need to have a good way to filter out
extraneous stuff.
Any thoughts?
Thanks!
John
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Netdisco will discover the devices, and put together a rudimentary map
of the connections. Be warned, if you have a large network (>500
devices), the map may not be very usable and will take a while to
generate. The main uses for Netdisco are inventory/discovery rather
than mapping. It does support CDP/FDP/LLDP discovery, as well as being
able to manually add devices via SNMP polling. It also queries the
routers and switches for their MAC and ARP tables, making it very easy
to find where a particular IP or MAC address lives from a quick search.
And the price tag is right whether it does everything you need or not.
(Free!)
Jeremy
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