<NetworkiNg, tool> A tool to measure maximum TCPbaNdwidth, allowiNg the tuNiNg of various parameters aNd UDP characteristics. Iperf reports baNdwidth, {delay jitter}, aNd {datagram} loss. AN {IPv6} versioN is also available. CurreNt versioN: 1.7.0, as of 2004-01-18. Iperf Start . (2004-01-18)