STM

STM is expanded two ways:

1. service test manager

   An NFM-P facility that allows the manual creation and automatic generation of tests and test suites. STM tests and test suites can be run on demand or scheduled to run periodically on services and service transport components for SLA QoS validation and troubleshooting.

2. synchronous transfer mode

   The synchronous end-to-end transmission of data or voice containers in a network. STM is a component of SDH.