TMN architecture: There are three architectural perspectives: functional, physical, and information, as shown in Figure1.

• The functional architecture identifies functional modules or blocks in the TMN environment, including the reference point between them. The requirements for interface are specified.

• The physical architecture defines the physical blocks and interfaces …

• Networks are increasingly becoming complex and distributed. As a result, problems like hardware failures, performance degradation, resource allocation, bandwidth monitoring and assignment and service provisioning are harder to solve and become real challenges for Network Operation Centers (NOC).

• The NOC is in constant search for efficient integrated network …