Element Management System Seminar report


Date: 21 Feb 2016






In this Seminar Report paper, we reviewed the Element Management System Seminar Report. Element Management System or EMS consists of systems and applications that are concerned with managing network elements (NE) on the network element management layer (NEL) of the Telecommunication Management Network model (TMN) shown on the PDF below. As recommended by ITU-T, the Element Management System's key functionality is divided into five key areas - Fault, Configuration, Accounting, Performance and Security (FCAPS). Portions of each of the FCAPS functionality fit into the TMN models. On the northbound the EMS interfaces to Network Management Systems and or Service Management Systems depending on the deployment scenario. Southbound the EMS talks to the devices.
In a real world situation, EV's have to cater to different market segments ranging from small Service. A simple EMS developed for a small Service Provider may not meet the scalability needs of an ILEC, while a full-featured highly available and scalable that is suitable for an ILEC may be overkill for a smaller Service Provider. Finally developing a new EMS for each segment may not be a practical or a profitable option. When confronted with the above problem, the EV's attempt to solve it by developing a basic EMS initially and hoping that it could be scaled up to meet the demanding requirements of an ILEC. This strategy definitely makes sense if the Element Management System is architected properly. From our experience we have noticed that in many instances it is not the case because the initial development of the EMS is done at the last moment and in a rushed manner. Therefore the EV's face an uphill task of scaling up the Element Management System. The key issue in most of these situations is that the Element Management System was not initially architected to meet the requirements of large Service Providers. It is therefore essential to choose the correct architecture for the Element Management System so that it could be implemented to meet the requirements of different segments effectively. There are a variety of architectures that could be used to build an Element Management System. Based on our experience, we recommend that the Element Management Systembe developed using JEE architecture. Since JEE based applications could be extended to n-tiers to meet the scalability needs of the customer, we believe it is a very good fit for Element Management System development.






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