iPerf3 - SpeedTest Server for Ubuntu is a power tool for active measurements of the maximum achievable bandwidth on IP networks. For each test it reports the bandwidth, loss, and other parameters. It supports tuning of various parameters related to timing, buffers and protocols (TCP, UDP, SCTP with IPv4 and IPv6) on Windows.
Set time and traffic information. Get testing result in one click. You can check the connection speed wherever you are.
iPerf3 - SpeedTest Server for Ubuntu come in very handy for network administrators who constantly need to keep an eye on bandwidth performance. Even though it is but a command line, it manages to provide powerful assistance when it comes to tweaking.