One method occurs at a test system controller of a network test system implemented using at least one processor. The method includes establishing agent association criteria for a test system traffic generation agent to be deployed in a cloud computing system under test (SUT) and receiving a registration message from the test system traffic generation agent in response to a launching of the test system traffic generation agent in the cloud computing SUT. The method further includes obtaining agent property values associated with the one test system traffic generation agent from the registration message and sending test configuration data to the test system traffic generation agent in response to determining a match between the agent property values and the agent association criteria, wherein the test configuration data configures the test system traffic generation agent to operate as a predefined network segment in the cloud computing SUT.