This section describes the stateless port level scripting parameters. The apa hassis parameters correspond to the Port Resource Properties panel of the ValkyrieManager, and deal with basic information and configuration of the test ports. The port parameter names all have the form P_<xxx> and require both a module index and a port index before the parameter name. In general, port parameters cannot be changed while traffic is on. Additionally, every stream must be disabled before changing parameters that affect the bandwidth of the port.