Print a report every 5 sec (match server setting, to avoid confusion) Target bandwidth to try is 5Gbit/sec (start from, say 100m, then increase until get packet loss) Number of hops (routers) for multicast traffic to cross (Caution: do not put a large number here on production networks!) Means client, transmitting or publishing to the multicast group 224.1.1.1 Then start IPERF as a sender, in client mode, transmitting to the multicast address 224.1.1.1: IPERF server starts and waits for incoming traffic. Use close to maximum UDP packet size ( 65536) to try to maximize throughputĪssign DSCP = 48 to server-to-client packets Print a report every 5 seconds (more frequent ones aren't very representative) Listen to, or subscribe to, the multicast group 224.1.1.1 Start IPERF as a receiver, in server mode, subscribed to the multicast address 224.1.1.1: iperf.exe -s -u -B 224.1.1.1 -i 5 -l 65500 -q 48 where: To generate the multicast traffic, IPERF has to be in client mode. To be a receiver of multicast traffic, IPERF has to be in server mode. With multiple receivers, IPERF and Task Manager will show equal traffic on the sender and each of the receivers, which is impossible with unicast. Although it's possible to run this with just one receiver, you need two receivers to make it interesting. In the simplest configuration one computer is the sender, and multiple others are receivers of multicast traffic.
MULTICAST TRAFFIC GENERATOR WINDOWS SOFTWARE WINDOWS
Two terminal sessions on the right on Windows XP and Windows7 run IPERF as receivers, leftmost is Windows XP Sony Vaio laptop running IPERF as sender. Three computers connected to Netgear GS608 gigabit switch.
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