Gigabit connectivity is not quite up at this point. Here are several recent pictures of the network lab main rack. Netdisc is written in Perl, and uses IP discovery to discover routers, IP subnets, and hosts. The goal being that network data can then be post-processed with other tools and might be visualized in different ways. A third level of html MAY exist underneath the netvis output that can be used to tie the netvis html to such public-domain tools like MRTG or Big Brother.
Source is included.
This is a port of the well-known ttcp application as found on UNIX systems.