Course overviewCourse overview

INSS 650 - Telecommunications

Copyright 2005 John Wiley & Sons, Inc 1 - 2

Three Faces of Networking

• Fundamental concepts of networking– How data moves from one computer to another over a

network

– Theories of how network operate

• Technologies in use today– How theories are implemented, specific products

– How do they work, their use, applications

• Management of networking technologies– Security

– Network Design

– Managing the network

Copyright 2005 John Wiley & Sons, Inc 1 - 3

Advances in Phone Technology

1876

Phone invented

first trans-continental

and transatlantic

phone connections

1915

1919

Strowger (stepper) switch,

rotary dial phones(enabling automatic

connections)

1948

Microwave trunk lines (Canada)

1962

Telstar (Telecommunications

via satellite), Fax services, digital transmission (T-

carriers)

1969

Picturefone (failed

commercially)

1976

Packet-switched data

communications

1984

Cellular telephone

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Invention to Regulation

1900

millions of phones in use in the US

Regulation began in the USA (ICC)

1934

FCC established

1968

Carterfone court decision allowing non-Bell CPE

1970

MCI wins court case; begins providing some long distance services

1984

Consent decree by US federal court

1996

US Telecom Act

A time for technological

change

1885

AT&T

Phone invented (rapid acceptance)

1876

Bell System: de facto monopoly

1910

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1984 Consent Decree

Divestiture: • AT&T broken up into a long distance company (AT&T) & 7

Regional Bell Operating Companies (RBOCs)

Deregulation:• Competitive long distance (IXC) market; MCI & Sprint enter LD

market (among others)• Local Exchange Carrier (LEC) service markets remained

under RBOC monopoly

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US Telecom Act of 1996

• Replaced all current laws, FCC regulations, 1984 consent decree, and overrules state laws

• Main goal: open local markets to competition

• To date, though, local competition slow to take hold…– Large IXCs expected to move into the local

markets, happening only recently

– Likewise, RBOCs expected to move into long distance markets, happening only recently

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Worldwide Competitive Markets

• Internet market– Extremely competitive with more than 5000 Internet

Service Providers (ISPs) in the US alone.

– Heavy competition in this area may lead to a shake out in the near future.

• World Trade Organization (WTO) agreement (1997)– commitments by 68 countries to open, deregulate or

lessen regulation in their telecom markets

• Multi-national telecom companies– US companies offering services in Europe, South

America

– European companies offering services in USA

Copyright 2005 John Wiley & Sons, Inc 1 - 8

Internet Milestones

Originally called ARPANET, the Internet began as a military-academic network

1969

Over 240 million

servers and 400 million users

20011990

commercial access to the Internet begins

ARPANET splits:• Milnet - for military• Internet - academic,

education and research purposes only

1983

NSFNet created as US Internet backbone

1986

Government funding of the

backbone ends

1994

Course objectives

• Review of basic networking concepts– communications models and layers

– LANs and Wireless LANs

– networking in Windows

• Fundamentals of public networks– telephone services

– backbone networks and internets

– WANs, Frame Relay, ATM and VPN

• Management and security– network design and management

– security and network security

1 - 10Copyright 2005 John Wiley & Sons, Inc

Course conduct• Syllabus at

– http://home.ubalt.edu/abento/650

• Meetings

– Face-to-face : 8:15-9:45 PM

– On the Web : 1 hour at your discretion

• Grading and assignments

– six assignments: 25%

– project: 25%

– mid-term and final: 25% each