Lab server is also known as session manager server. Lab server helps in maintaining the session to the Spirent Test Center chassis. The Spirent TestCenter LS appliance is the Spirent TestCenter server. Together, Spirent TestCenter Session Manager (client software) the Spirent TestCenter LS provide the solution that eliminates the need for a dedicated test management console computer and supports team collaboration during testing. Working through the lab server provides mobility to the user since the user initiates the test session from his laptop through the lab server to the STC chassis rather than initiating it directly to the chassis.