TMN Telecom Management Network

TMN (Telecom Management Network) refers to a framework of standards and protocols that define a hierarchical and structured approach to managing and operating telecommunications networks. TMN provides a framework for the management of various network elements, systems, and services within a telecommunications infrastructure.

Objectives of TMN

The primary objectives of TMN are:

1. Efficient Network Management: TMN aims to enable efficient management of telecommunications networks by providing a structured and standardized framework. It allows network operators to monitor, control, and configure network elements and services in a consistent and interoperable manner.
2. Fault Management: TMN facilitates the detection, isolation, and resolution of network faults by providing mechanisms for fault monitoring, event reporting, and fault correlation. It enables proactive fault management and troubleshooting to ensure high network availability.
3. Performance Management: TMN allows for the measurement, collection, and analysis of performance data from network elements and services. It provides tools and protocols to monitor key performance indicators (KPIs) and ensure that network performance meets defined quality targets.
4. Configuration Management: TMN enables centralized and standardized configuration management of network elements and services. It provides mechanisms for defining, distributing, and applying configuration settings, allowing for efficient and consistent network configuration.
5. Security Management: TMN includes provisions for managing the security aspects of telecommunications networks. It facilitates the implementation of security measures, such as access control, authentication, authorization, and encryption, to protect the network infrastructure from unauthorized access and attacks.

Components of TMN

TMN comprises several key components:

1. Business Management System (BMS): The BMS component of TMN focuses on business aspects such as service provisioning, billing, and customer relationship management. It handles customer-related activities and interfaces with other business support systems.
2. Network Element Management (NEM): The NEM component deals with the management of individual network elements. It includes functions such as fault monitoring, configuration management, performance monitoring, and software management specific to each network element.
3. Network Management System (NMS): The NMS component provides a centralized management system that oversees the operation and performance of network elements. It collects and consolidates data from network elements and facilitates network-level management tasks.
4. Element Management Layer (EML): The EML is an interface layer that connects the network elements and the NMS. It provides standardized protocols and interfaces for communication between network elements and the management system.
5. Common Management Information Service (CMIS): CMIS defines a set of standardized interfaces and protocols for exchanging management information between network elements and management systems. It enables interoperability and seamless communication across different vendors' equipment.

TMN and Telecommunications Standards

TMN is built upon various telecommunications standards and protocols, including the ITU-T M.3000 series recommendations. These recommendations define the architecture, interfaces, and protocols for implementing TMN-compliant systems. Other relevant standards include the Simple Network Management Protocol (SNMP), Common Management Information Protocol (CMIP), and Telecommunications Management Network Interface (TMN-I) standard.

Conclusion

TMN (Telecom Management Network) is a framework that provides a structured approach to managing and operating telecommunications networks. It enables efficient network management, fault management, performance management, configuration management, and security management. TMN consists of components such as the Business Management System, Network Element Management, Network Management System, Element Management Layer, and Common Management Information Service. By adhering to TMN standards and protocols, network operators can effectively manage and operate their telecommunications infrastructure while ensuring interoperability and efficient service delivery.