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Introduction to Telecommunications and

Network Management

Lecture One, 08/31

Fall 2011

Professor Alex Tan

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Today’s Topic - Course Introduction

Why study telecommunications and network management?

What will be covered in this course? About textbooks and other readings. About assignments and grades. Several communication models and

definitions.

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Why Study Telecom. and Network Management A fast growing field (variance among sectors?!). Becoming an essential feature of business

environment rather than simply a tool. Creating a new economy – network economy,

aided by the convergence of computing with telecommunications? iPhone/iPad as an example.

Many potential jobs!? Essential for IT professionals including IM folks. Wave?? Bubble?? What?? Your thoughts??

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What Will Be Covered From the perspective of corporate comm. needs;

focus on the related topics. Basic design of the Internet Standards and architecture in general, and key

industry standards. Physical network media

including copper cables, fiber-optics, and radio waves.

Major security threats associated with computer networking and protocols, tools, and strategies used in the modern network management.

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What Will Be Covered In This Course Wired and wireless switched network

technologies. Modern wide-area telecommunications for

voice, video, and information services with full mobility.

Key components and design principles associated with wide area networks that are used by common carriers and enterprises.

Fundamental characteristics of packet-switched data networks and the key TCP/IP protocols.

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What Will Be Covered In This Course Relationship between the Internet

infrastructure and key networked application architectures, including personal and business

applications, electronic messaging, the World Wide Web, multimedia network entertainment services and emerging peer-to-peer applications.

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Goals for This CourseGoals for This Course First and for most, to build up a broad and

current base of technological background and of management knowledge regarding TNM. TNM or non-TNM students. An expansion and updating for those with engineering

background.

Serve as a starting point for studying further specialized topics in TNM program. Particularly for TNM students.

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Textbooks and Other Readings Required book – Panko (2009), Business Data

Networks and Telecommunications, Seventh Edition, Pearson Prentice Hall.

Other readings in different flavors (supplementing the above textbook).

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Assignments and Grading

Class participation (5%) Lab sessions (15%) Midterm exam (close-book) (20%) Final exam (close-book) (30%) A "Network Profile Report" project (30%) (

the contract)

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Q&A Alex Tan’s background –

istweb.syr.edu/facstaff Your background

Who are you?Why take this course?

Any other questions? Go over the syllabus – More readings

might be added as the class goes.

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Model of Communication Model of Communication

One of the typical communication models (communication 101)

sendersender receiverreceivermessagesmessages messagesmessagesChannelChannel

One Way: No reversal channel. e.g.. traditional Radio and TV One Way: No reversal channel. e.g.. traditional Radio and TV broadcasting (broadcasting (simplex modesimplex mode))

Two Way: forward and backward channels to facilitate Two Way: forward and backward channels to facilitate constant and interactive communications. e.g.. telephone, constant and interactive communications. e.g.. telephone, many Internet applications (many Internet applications (half or full duplex modehalf or full duplex mode).).

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Model of TelecommunicationModel of Telecommunication

The telecommunications model

sendersender receiverreceivermessagesmessages messagesmessagesChannelChannel

Telecommunications: communication with a specific channelTelecommunications: communication with a specific channel

--- --- Electrical or Electromagnetic meansElectrical or Electromagnetic means

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Model of Traditional Data CommunicationModel of Traditional Data Communication The DATA communications model

sendersender receiverreceivermessagesmessages messagesmessagesChannelChannel

Data communications: messages are processedData communications: messages are processed

--- Messages are CODED information--- Messages are CODED information

As various messages are digitized (coded), As various messages are digitized (coded), DATA communications DATA communications and telecommunications are interchangeable in many cases, and telecommunications are interchangeable in many cases, including our class.including our class.. .

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TNM Issues – An Overall PictureTNM Issues – An Overall Picture

sendersender receiverreceivermessagesmessages messagesmessagesChannelChannel

Media & Media & TransmiTransmissionssionCodingCoding DecodingDecoding

System/network operation & managementSystem/network operation & management

Business, Regulation, CompetitionBusiness, Regulation, Competition

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Definition of A Network in Panko What Is a Network?

Preliminary definition: A network is a communication system that allows application programs on different hosts to work together

Application 1Application 2

Host A

Host B

Network

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More About Panko’s ApproachMore About Panko’s Approach Black-Box view is often introduced first.

Make sense from our daily life experiences.

Some more technical details are introduced then. Try to explain what happened technically by using

non-EE type of language.

In most cases, Panko stops short here. Future courses or your self studies will fill in more EE

type of explanations and understandings

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HTTP as An Example First, HTTP applications (Browsing, downloading) from

your daily life, based on a black-box view Question - how do the applications travel technically?

TCP/IP protocols are introduced to explain the packets movement. Question – how do packets move technically?

Further, various routing and switching networks are explained. Question – what kinds of wires are built technically?

Even further, wires/wireless links are explained. Question – how are signals created and how do they travel?

EE technical details – often touched superficially.

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Please Remember Because of Panko’s/textbook’s particular

approach, At the first time, what the textbook talks

about might be difficult for you to fully understand from the technical perspective.

Many of these concepts will make more sense when more details are introduced later on.

Chicken-and-egg relationship?!