Performance monitoring in FOXMAN-UN provides Quality of Service evaluation of the data transmission media.

For the FOX61x NEs performance data is produced for Ethernet interfaces (trunk ports and user ports) as well as for all other trunk and user ports (packet-based and TDM-based performance data, as available).

For the FOX51x NEs it is implemented according to ITU-T recommendations G.826 for event calculations.

Performance monitoring with the FOX51x is available for all ABUS/SBUS and PBUS units with traffic signal layers and the new UBUS units. The parameters are evaluated according to ITU-T G.826.

Legacy UBUS units (e.g. MEGIF, UNIDA, TUNOP) have no performance monitoring.

The diagnostic function of the control unit COBUX, COBUV provides performance monitoring for the channel under test. The monitoring complies with ITU-T G.821.

Performance data is generated and stored at the unit themselves. After initialization the unit automatically starts counting the required events and stores the results in its memory.

Upon operator request, the CST can perform the function to retrieve the data from the unit and display it. For UCST it is possible to print the retrieved data.

FOXMAN-UN offers also an automatic performance data collection function. This allows collecting performance data over an extended period of time for a selected number of items in the managed network.