Fundamentals of Communications and Networking, 3rd Edition

Network Management

The International Telecommunication Union (ITU) Telecommunication Standardization Sector (ITU-T) introduced Recommendation M.3010, a protocol model for managing open systems in a communication network. This model was called the Telecommunications Management Network (TMN). TMN defined four layers:

• Business management
• Service management
• Fault and performance management
• Element and configuration management

The main purpose of TMN was to provide a framework to align telecommunications assets to business goals. ITU-T realized that the basic model was solid but could be modified to provide a generic framework for any networked environment. In 1997, the ITU-T refined the TMN model to focus on five functionally different areas ...