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Visual Studio 2008

The network mix provides you with a way to simulate load more realistically in a load test scenario. Load is generated by using a heterogeneous mix of network types instead of one single network type. You create a closer approximation of how end users interact with your applications.

A network mix specifies the probability of a virtual user running a given network profile. A network profile is a simulation of network bandwidth at the application layer. It does not simulate latency.

When you create a load test, you might want to simulate that load is being generated through more than one type of network connection. The network mix offers several network types, including:

• LAN (default)

• T3 6.0Mbps

• T1

• Cable/DSL 1.5Mbps

• Cable/DSL 768k

• Cable/DSL 384k

• Dial-up 56k

• Dial-up 33.6k

• Dial-up 28.8k

The different networks are simulated. When you choose an option such as Cable/DSL 1.5Mbps, wait times are injected into the test to simulate the selected bandwidth.

The network mix works like other mix options. A network type is selected randomly associated with a virtual user, based on network mix. That user's tests are run using a particular network type, based on the probability you specified in the mix.

After you have specified a network mix, you can later add and remove network types. You also can change the distribution of the network mix using the mix control.

The mix control allows you to easily adjust the distribution of networks in a scenario.

To select a network mix when you create a load test using the Load Test Wizard, or to change the network mix in the Load Test Editor after you create a load test, see How to: Specify Network Mix.

How to: Specify Network Mix
How to: Remove Networks from a Load Test Scenario