Spice Training

AN INDUSTRIAL TRAINING At Spice Telecomm MOHALI

BY PRASHANT SHARMA 162 / 03 COMPUTER SCIENCE AND ENGG.

ABOUT COMPANY

Departments In SPICE TELECOMM Spice telecomm has these basic departments:

SPICE TELECOMM IT/DATA NETWORKS SWITCHING TRANSMISSION DATA COMMUNICATION NETWORK

Marketing department

How IT Works in Spice telecomm   Spice  telecomm  Ltd  is  the  latest  project  of  Spice  telecomm  Industries  Limited,  the  fastest  growing  and one of the largest Corporate Houses in India.  Spice  telecomm  has  build  a  vast  broadband  network,  Internet  protocol  (IP)  backbone,  connecting  India's  top  250  cities  which  will  grow  up  to  600  cities  with  more  than  60,000  route  kilometers of fiber that will offer terabit capacity.  Spice  telecomm  is  offering  its  customers  a  full  range  of  services  including  national  coverage,  fixed  line,  mobile,  national  long  distance,  and  international  long  distance  as  well  as  a  full  offering of data, image, and value-added services.   Company  intents  to  provide  the  entire  gamut  of  telecom  services  with  strategies  to  capture  business customers through wire- line/fiber route  and masses through wireless route.

IT Infrastructure Spice telecomm offices are spread across the country. There are multiple offices in a city. IT being the important aspect of running the business, a team has been dedicated for IT Infrastructure. IT Infrastructure team is responsible for setting up and further supporting IT Infrastructure at various telecomm Offices.

 

Typical IT Equipments

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The telecomm office setup consists following equipment: A DHCP Server Network switch VSAT modem Desktops Printer and fax machine EPABX and telephone instruments

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ABOUT PROJECT

NETWORK Design and Analysis

Introduction to Networking 

A computer network is a system of computers and workstations, which are linked together. A LAN is a high-speed, fault-tolerant data network that covers a relatively small geographic area. It typically connects workstations, personal computers, printers, and other devices. LANs offer computer users many advantages, including shared access to devices and applications, file exchange between connected users, and communication between users via electronic mail and other applications.

Introduction to Networking (continued) 

A Local Area Network (LAN) is an information transport system for information transfer between devices located on the same area, such as, an office building, a manufacturing plant, a hospital area, a university campus, or any other geographically confined area. Any device that communicates over a transmission medium for example: computers, terminals, sensor (temperatures, security alarm, etc.) telephones, and video camera, computer systems may be incorporated to LAN.

LAN Objectives 

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This description summarizes the results of the kind of strategic, high level analysis. Some of the issues to be addressed are: Who is communicating with whom? Is the project designed to support communications within the building? Who is to be communicated? What business functions will the proposed network support? What, in general terms, is the business rationale for the project? What is the time frame for the proposed project?

LAN Analysis        

NETWORK MODELS NETWORK TOPOLOGIES TRANSMISSION MEDIA CONNECTIVITY DEVICES OSI REFENCE MODEL IEEE 802 FAMILY IP ADDRESSING

Network Models Server-based  Peer-to-peer 

Network Topologies 

LINEAR BUS

STAR 

TREE

Transmission Media Coaxial cable  Twisted-pair cable  Fiber-optic cable 

Coaxial Cable

Unshielded twisted-pair cable (UTP)

OPTICAL FIBER

Type of cabling Crossover cable  Straight cable 

How to make Straight and Crossover cable

Connectivity Devices

A Network Interface Card

Connectivity Devices

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Rj –45 jack

How LAN Switches Work 

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LAN switches rely on Packet  switching. The switch establishes a connection between two segments just long enough to send the current packet. Incoming packets (part of an Ethernet frame) are saved to a temporary memory area (buffer); the MAC address contained in the frame's header is read and then compared to a list of addresses maintained in the switch's lookup  table. In an Ethernet-based LAN, an Ethernet frame contains a normal packet as the payload of the frame with a special header that includes the MAC address information for the source and destination of the packet.Packet-based switches use one of three methods for routing traffic:  Cut-through  Store and forward  Fragment-free

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