There are several OAM fault and performance tools that have been developed to monitor and report information about the network infrastructure and the services that rely on that infrastructure. Most of the technology-specific tools are categorized under one or more of the following scheduling and reporting functions:
Link measurement
This function performs IP delay measurement scheduling with direct reporting to the routing engine, and influences the local router routing sub system.
OAM Performance Monitoring (OAM-PM)
This function is an Ethernet, IP, and MPLS performance measurement architecture with scheduling, reporting, and delay streaming options. It is focused on northbound system collection.
Service Assurance Agent (SAA)
This function is an Ethernet, IP, and MPLS fault and performance measurement architecture with scheduling and reporting. It is focused on northbound system collection.