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Slide 1:

Computer network By: POOJA PAREEK Wipro Technologies - Wipro Confidential - Not for Distribution Wipro Technologies - Wipro Confidential - Not for Distribution

Contents:

Contents Different Types of Networks Building Blocks of Circuit Switched Networks Building Blocks of Packet Switched Networks Building Blocks of Access Networks Building Blocks of Fiber Optic Networks Building Blocks of Wireless Networks Converged Networks

Objectives:

Objectives The objective of this chapter is to learn different types of networks based on distance, type of switching used.

Network Classification:

Network Classification Networks Can be Classified as: a) Wired, Wireless and Fiber Optic Networks b) LANs, MANs and WANs c) Circuit Switched, Packet Switched and Virtual Circuit Switched Networks d) Access, Edge and Core Networks

A Wired Network:

A Wired Network

A Wireless Mobile Network:

A Wireless Mobile Network

A Fiber Optic Network:

A Fiber Optic Network

LAN, MAN and WAN:

LAN, MAN and WAN

Packet Switched Network:

Packet Switched Network

Virtual Circuit Switched Network :

Virtual Circuit Switched Network

Access /Edge and Core:

Access /Edge and Core

Objective:

Objective In this chapter you will learn the Difference between circuit switching and packet switching Circuit and packet switched networks A public switched telephone network An intelligent network architecture

A Communications Model:

A Communications Model Source Transmitter Transmission System(Channel) Receiver Destination Source System Destination System

Telecommunication Network:

Telecommunication Network

Circuit Switching:

Circuit Switching

Packet Switching:

Packet Switching

PSTN:

PSTN

PSTN Elements:

PSTN Elements

Typical PSTN Network:

Typical PSTN Network PSTN Network A Class 4 Switch Class 5 Switch Class 5 Switch Class 4 Switch PSTN Network B Class 4 Switch International GW Class 5 Switch International GW PBX

Intelligent Network Architecture:

Intelligent Network Architecture

Summary:

Summary In this chapter you have learnt the Difference between circuit switching and packet switching Circuit and packet switched networks A public switched telephone network An intelligent network architecture

Objective:

Objective In this chapter you will learn Different access technologies like Integrated Circuits Digital Network Digital Subscriber Line Cable Modem Fiber To The Home Wireless LAN

Dial Up Modem:

Dial Up Modem

Access Technology- DSL:

Access Technology- DSL

Access Technology - Cable Modem:

Access Technology - Cable Modem

Access Technology - Cable Modem:

Access Technology - Cable Modem

FTTH (Fiber To The Home):

FTTH (Fiber To The Home)

Wireless Local Loop:

Wireless Local Loop

Summary:

Summary In this chapter you have learnt Different access technologies like Integrated Circuits Digital Network Digital Subscriber Line Cable Modem Fiber To The Home Wireless LAN

Objective:

Objective In this chapter you will learn A packet switched network LAN, MAN and WAN networks How routers and switches are connected to form a network

Packet Switched Networks: Coaxial Bus:

Packet Switched Networks: Coaxial Bus

Area Extending:

Area Extending As can be seen in the diagram servers, clients and printers can be sharing the same Coaxial bus. If the distance had to be still increased then a bridge was used to extend the LAN. The bridge then acted as the switching element reading the frame and switching the frames

Star Topology with Hub/Switch:

Star Topology with Hub/Switch

How a Router is connected:

How a Router is connected

How Switches/Hubs and Routers Connect:

How Switches/Hubs and Routers Connect

How a device can act as Router & Switch:

How a device can act as Router & Switch

A Corporate LAN:

A Corporate LAN

Wireless LANs:

Wireless LANs

Summary:

Summary In this chapter you have learnt A packet switched network LAN, MAN and WAN networks How routers and switches are connected to form a network

Building Blocks of Fiber Optic Networks :

Building Blocks of Fiber Optic Networks

Objective:

Objective In this chapter you will learn Ring structure of optical networks How optical fibers are connected to form an interoffice, metro and long-haul ring networks

Ring structure of Optical networks:

Ring structure of Optical networks

Optical Networks:

Optical Networks SONET Fiber optic ring Low Density Settlements POTS Leased Lines ADSL 100 base T

The metro SONET network:

The metro SONET network Express Rings Collector Rings Access Express Metro Most of the existing network is arranged as cascaded / hierarchical rings.

Optical networks – A big picture:

Optical networks – A big picture 192c 192c Optical Amplifiers 192c 192c VOIP POP 12c/48c OC192 SONET VOIP POP Optical Add Drop Elements Optical Cross Connects

Summary:

Summary In this chapter you have learnt Ring structure of optical networks How optical fibers are connected to form an interoffice, metro and long-haul ring networks

Objectives:

Objectives In this chapter you will learn The different components used in wireless networks The cellular structure GSM/GPRS/CDMA networks

Evolution:

Evolution

Overview of wireless Networks:

Overview of wireless Networks

Cellular Concept:

Cellular Concept Area 1

Cellular Network :

Cellular Network

GSM Network Architecture:

GSM Network Architecture

GSM Network Architecture:

GSM Network Architecture

GPRS Network Architecture:

GPRS Network Architecture

CDMA Network Architecture:

CDMA Network Architecture

Summary:

Summary In this chapter you have learnt The different components used in wireless networks The cellular structure GSM/GPRS/CDMA networks

Campuses Interoperating through WAN:

Campuses Interoperating through WAN

Access to WAN from Home:

Access to WAN from Home

Truly Converged Network:

Truly Converged Network

Thank You:

Thank You