Network Management Overview

Network management is a mission critical factor in successfully operating a network and the business. It ensures all networking equipment and other resources deployed effectively. It increases the availability of network and the proper quality of services. It ensures the security of information and the network. In the case of a service provider, it also provides accurate accounting information for billing.


There are many different reference models, technologies, systems and tools to cover the various functions of network management. In terms of the reference models, the most well known models include the ISO FCAPS: Fault, Configuration, Accounting, Performance and Security. ITU-T proposed the model called the Telecom Management Network (TMN). The newer one proposed by the TeleManagement Forum is called TOM: Telecoms Operations Map or eTOM: enhanced Telecom Operations Map. The most popular traditional model deployed by many Service Providers is called OAM&P: Operation, Administration, Maintenance and Provisioning.

There are many network management technologies and protocols which address some of the network management functions. The most popular technology deployed in the TCP/IP data communication network is the Simple Network Management Protocol (SNMP) defined by IETF. Another popular protocol is the Common Management Information Protocol (CMIP) and Common Management Information Service (CMIS) defined by ISO.

There are many types of systems available for various purposes of network management, which help network management professionals to manage and operate the network and services daily. However, there is no single solution available to address all the network management requirements. Each system may cover one or several functions.

A Typical Network Management Architecture





Reference:

http://www.networkdictionary.com/Telecom/Network-Management-Overview.php