IPERF for Windows - Multicast bandwidth test with QoS between three computers

Описание: Three computers are connected to Netgear GS608 Gigabit switch.
Two terminal sessions on the right on Windows XP and Windows7 run IPERF as receivers,
leftmost is Windows 7 Sony Vaio laptop which runs IPERF as sender. Task Manager of each computer shows around 625Mbit/sec of traffic, proving that it's really multicast not unicast. Different DSCP values were assigned, using this tool IPERF for Windows from http://www.iperfwindows.com