scope:

The present document specifies the Q3 interface between an Asynchronous Transfer Mode (ATM) switch and the Telecommunications Management Network (TMN) for the support of configuration, fault and performance management functions. The interface specified is that between TMN network elements or Q-adapters which interface to TMN Operations Systems (OSs) without mediation and between OSs and mediation devices, as defined in ITU-T Recommendation M.3010 [5]. Fault and performance management together include both passive monitoring of reports and active fault isolation.

The configuration by management of channels for signalling, including those for B-ISDN signalling, is within the scope of the present document. The management of broadband customer administration and the configuration for call routeing including that for interworking with narrowband switches for both incoming and outgoing interfaces is also within the scope of the present document.

An ATM switch may include ATM crossconnect functionality, but this is specified by reference to EN 300 820-1 [22] or the ITU-T Recommendation I.751 [4] and by importing the relevant classes of managed objects where appropriate.

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.

The management of ATM Adaptation Layers (AALs) which are only used in the user plane is outside the scope of the present document since the broadband switch management has no visibility of ATM adaptation for the user plane. Management of AAL5 and the Signalling ATM Adaptation Layer (SAAL) is within the scope since these are used in the control plane.

Security management is outside the scope of the present document.