The present document specifies the management interfaces (Q3 interfaces) associated with the VB5.2 reference
point [6] and EN 301 217-1 (see bibliography) for the support of configuration, fault & performance management
functions. Fault and performance management together include both passive monitoring of reports and active fault
isolation.
The Q3 interface is the TMN interface between network elements or Q-adapters which interface to OSs without
mediation and between OSs and mediation devices.
Existing protocols are used where possible, and the focus of the work is on defining the object model. The definition of
the functionality of TMN Operations Systems is outside the scope of the present document.
ITU-T Recommendation Q.2931 [9] is supported at the UNI, and the ATM Forum UNI is supported for compatibility
with the established base of ATM equipment.