Re: Network discovery and mapping

[Sean Donelan <sean () donelan com>]

On Mon, 23 Jun 2003 rpcbind () speakeasy net wrote:

> On the subject, has anyone had success w/ any L2 discovery tools?
>
> psnmp seems promsing (http://psnmp.sourceforge.net/), but the lack of support
> for Cisco, Extreme, and Foundry makes it a bit limiting. I've found that L3
> topology is often well documented (and reasonably easy to decipher), but
> finding troublesome layouts in switched configs is one place where a decent
> tool could come in handy.

Fluke LAN Mapshot is a nice one-trick pony product for mapping L2
switches.  Point it at a network, give it the right snmp community
strings, and it generates a switch topology.