Introduction to Networking Protocols and Architecture

Introduction to Networking Protocols

and Architecture

Raj Jain Professor of CIS The Ohio State University Columbus, OH 43210

Jain@

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The Ohio State University

Raj Jain

2-1

Overview

u Data Comm vs Networking vs Distributed Systems u Types of Networks u Protocol Layers: OSI and TCP/IP Models u Connection-oriented vs connectionless u Layered packet format

The Ohio State University

2-2

Raj Jain

Data Communication vs Networking

u Communication: Two Nodes. Mostly EE issues.

u Networking: Two or more nodes. More issues, e.g., routing

The Ohio State University

2-3

Raj Jain

Distributed Systems vs Networks

u Distributed Systems: u Users are unaware of underlying structure. E.g., trn instead of \n\bone\0\trn u Mostly operating systems issues. u Nodes are generally under one organization's control.

u Networks: Users specify the location of resources. http:\\cis.ohio-state.edu\~jain\ u Nodes are autonomous.

SSeerrvveerr

The Ohio State University

2-4

Raj Jain

Types of Networks

u Point to point vs Broadcast

WAN

Bus LAN

u Circuit switched vs packet switched

Ring LAN

u Local Area Networks (LAN) 0-2 km,

Metropolitan Area Networks (MAN) 2-50 km,

Wide Area Networks (WAN) 50+ km

The Ohio State University

Raj Jain

2-5

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