09-09-2014, 12:25 PM
TRAINING REPORT ON BSNL NETWORK AND COMMUNICATION
BSNL NETWORK.docx (Size: 317.36 KB / Downloads: 12)
ABSTRACT
Since time immemorial, a man has tried hard to bring the world as close to himself as possible.His thirst for information is hard to quench so he has continuously tried to develop new technologies, which have helped to reach the objective.
The world we see today is a result of the continuous research in the field of network and communication, which started with the invention of telephone by Grahm Bell to the current avtar as we see in the form INTERNET and mobile phones. All these technologies have come to existence because man continued its endeavor towards the objective.
This project report of mine, STUDY OF BSNL NETWORK AND COMMUNICATION has been a small effort in reviewing the trends technologies prevailing. For this purpose, no organization other than BAHRAT SANCHAR NIGAM LIMITED could have been a better choice.
INTRODUCTION TO PROJECT
The project tries to clearly throw light on the World's 7th largest Telecommunications Company Bharat Sanchar Nigam Ltd. formed in October,2000.
The main aim of the project is to give a detailed study of OCB-283 which is the main exchange on which BSNL works upon. It is a digital switching system which supports a variety of communication needs like basic telephony,ISDN etc. This system has been developed by CIT ALCATEL of France and therefore has many similarities to its predecessor E-10B (also known as OCB-181 in France).It also covers the wide range of services provided by BSNL.
The project provides us with an in depth knowledge about broadband, and the services available through it. A detailed study in understanding the data communication technologies ADSL and DSL have also been done.Study of ISDN being viewed as the logical extension of the digitalization has also been covered.
An overview of the satellite communication available in BSNL has also been discussed in the project.
BHARAT SANCHAR NIGAM LIMITED (BSNL)
Today, BSNL is the No. 1 telecommunication company and the largest public sector undertakingof India and its responsibilities includes improvement of the already impeccable quality of telecom services, expansion of telecom services in all villages and instilling confidence among its customers.
Apart from vast network expansions, especial emphasis has given for introducing latest technologies and new services like I-NET, INTERNET, ISDN (INTEGRATED SERVICES DIGITAL NETWORK), IN (INTELLIGENT NETWORK), GSM and WLL (WIRELESS IN LOCAL LOOP) services etc. Now BSNL has also entered in mobile communication. BSNL has all the new services send technological advantages, which are available with any well, developed Telecom network anywhere else in the country.
Full credit for all above achievement goes to the officers and staff of the BSNL. The administration is fully aware of the challenges lying ahead and quite committed to provide the latest and best telecom services by their continued support and active co-operation.
BSNL Services:
When it comes connecting the four corners of the country , and much beyond , one solitary name lies embedded at the pinnacle- BSNL. A company that has gone past the number games and the quest to attain the position of the leader. It is working round the clock to take India in to the future by providing excellent telecom services for people of India.
Driven by the very best of telecom technology from global leaders, it connects each inch of India to the infinite corners of the globe, to enable you to step in to tomorrow.
The telecom services have been recognized the world over as an important tool for socio-economic development for a nation and hence telecom infrastructure is treated a crucial factor to realize the socio-economic objectives in India. Accordingly the Department of Telecom has been formulating developmental policies for the accelerated growth of the telecommunication services in various cities. The department is also responsible for frequency management in the field of radio connection in close coordination with the international bodies
National Internet Backbone (NIB)
BSNL is an Internet service provider, providing Internet service throughout the entire country except in New Delhi and Mumbai, under the brand name of "Sanchar net". Sancharnet provides free all India roaming and enables it's users to access their accounts, using the same access code (172233) and user ID from any where in the Country. It has a customer base of more than 21 lakh subscribers. In order to make Internet available through out the length and breadth of the Country Internet Dhabas are being commissioned at all the Block Headquarters
ARCHITECTURE
BSNL network comprises of a three-tier architecture with 14 A-level nodes, 31 B-level nodes and the rest C-level nodes
Among the 14 A-nodes, six of them are interconnected in near full mesh with link bandwidth of 34 Mbps. These are referred to as A-1 cities. The remaining A-type cities are referred to as A-2 nodes and are dual homed to the A-1 nodes with link bandwidths of 34 Mbps.
The 31 B-level cities are connected to