ABSTRACT
The transport/monitoring component of a Local Area Network (LAN) hierarchy provides for "correct and consistent" service over the LAN. This collection of services provides for the error-free transmission of information. It performs the jobs of monitoring the LAN activities, detecting error conditions, correcting them if possible, and if not providing services to reconfigure the system to provide continued service under these faults. Without this class of service, we could not provide the present-day high reliability LANs that are used for critical tasks such as real-time control, financial exchange, as well as many others. The performance monitor (PM) is also responsible for supporting the reconfiguration and recovery of the system through the detection and localization of system errors and hardware faults/failures to determine the proper reconfiguration/recovery procedure. The system PM (SYSPM) Executive submode provides the control and interfaces necessary to allow for system-level performance-monitoring testing. SYSPM Initialization is responsible for processing PM control requests and responses.
