Windows 7 / Networking

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Testing QoS

You can use the QoS Traffic Generator to test your QoS implementation by generating different types of traffic, at varying rates, with specific characteristics. The following example demonstrates using the QoS Traffic Generator to send UDP traffic to the IP address 10.12.1.1 at a rate of 5 Mbps for 5 seconds.

First, start the QoS Traffic Generator in sink mode on the destination computer.

qostraffic -sink -udp

Then, send traffic using the QoS Traffic Generator from the source computer to the destination computer.

qostraffic -source -udp -dest 10.12.1.1 -throttle 5000000 -duration 5

Parsing command line...
WSAStartup successful.
Time between each packet (microsec): 2400
Size of each packet: 1472
Statistics sampling interval (msec): 1000
Sending traffic at 5.00 Mbps to 192.168.1.100:9999
Date, Time, Packets received, Bytes received (headers included), Elapsed time (msec),
Throughput (Kbps), Bottleneck BW, Available BW, RTT, BBSet, ABSet, RTTSet, ErrorCode
05/15/2009, 10:51:54, 421, 631500, 1014, 4982.249,,,,,,,
05/15/2009, 10:51:55, 422, 633000, 1014, 4994.083,,,,,,,
05/15/2009, 10:51:56, 423, 634500, 1014, 5005.917,,,,,,,
05/15/2009, 10:51:57, 422, 633000, 1014, 4994.083,,,,,,,
05/15/2009, 10:51:58, 423, 634500, 1014, 5005.917,,,,,,,
05/15/2009, 10:51:59, 422, 633000, 1014, 4994.083,,,,,,,
05/15/2009, 10:52:00, 423, 634500, 1014, 5005.917,,,,,,,
05/15/2009, 10:52:01, 422, 633000, 1014, 4994.083,,,,,,,
05/15/2009, 10:52:02, 423, 634500, 1014, 5005.917,,,,,,,
Time has elapsed, or CTRL+C has been pressed.
Stopping Source traffic, waiting 5 sec.
SenderThread is exiting...
SenderThread exited successfully.
WSACleanup successful.

The sink computer will display confirmation of the datagrams received.

For detailed usage information, run the following command from a command prompt.

qostraffic -?

To download the QoS Traffic Generator, visit http://connect.microsoft.com/wndp and then click the Downloads link. The QoS Traffic Generator includes libraries and source code, allowing developers to integrate the capabilities into custom applications.