Editing Telecommunications Management Network (section)

{{short description|Protocol model}}
{{More citations needed|date=July 2013}}
The '''Telecommunications Management Network''' is a protocol model defined by [[ITU-T]] for managing [[Open Systems Interconnection|open system]]s in a communications network. It is part of the ITU-T Recommendation series M.3000 and is based on the [[Open Systems Interconnection|OSI]] management specifications in ITU-T Recommendation series [[Common management interface protocol|X.700]].

TMN provides a framework for achieving interconnectivity and communication across heterogeneous operations system and telecommunication networks. To achieve this, TMN defines a set of ''interface points'' for elements which perform the actual communications processing (such as a call processing switch) to be accessed by elements, such as management workstations, to monitor and control them. The standard interface allows elements from different manufacturers to be incorporated into a network under a single management control.

For communication between Operations Systems and NEs (Network Elements), it uses the [[Common management information protocol]] (CMIP) or Mediation devices when it uses Q3 interface.

The TMN layered organization is used as fundamental basis for the management software of [[Integrated Services Digital Network|ISDN]], [[Broadband Integrated Services Digital Network|B-ISDN]], [[Asynchronous Transfer Mode|ATM]], [[Synchronous optical networking|SDH/SONET]] and [[Global System for Mobile Communications|GSM]] networks.  It is not as commonly used for purely packet-switched data networks.

Modern telecom networks offer automated management functions and are run by [[operations support system]] (OSS) software. These manage modern telecom networks and provide the data that is needed in the day-to-day running of a telecom network. OSS software is also responsible for issuing commands to the network infrastructure to activate new service offerings, commence services for new customers, and detect and correct network faults.