iperf: Iperf (A tool to measure IP bandwidth using UDP or TCP) iperf: iperf: Iperf is a tool to measure IP bandwidth using UDP or TCP. It allows iperf: for tuning various parameters, and reports bandwidth, delay jitter, iperf: and packet loss. Itsupports IPv6 and multicast. iperf: iperf: iperf: Homepage: http://sourceforge.net/projects/iperf/ iperf: iperf: iperf: