Ping Meter Gadget - Customizable, graphical, semi-transparent ping (latency) meter.
NetCut - NetCut is a Software that helps you admin your network by purely on ARP protocol.
SmokePing - Smokeping is a tool for measuring latency.
TuxCut - TuxCut is a netcut "in Windows OS" like software written in PyQt.
PingInfoView - PingInfoView is a small utility that allows you to easily ping multiple host names and IP addresses, and watch the result in one table.
CSArp-Netcut - An arpspoofing program that lets users launch spoofed arp requests to disrupt connections in a LAN