DATA COMMUNICATION Lecture-7.

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Presentation transcript:

DATA COMMUNICATION Lecture-7

Recap of Lecture 6 Ring Topology Transmission Modes Categories of Networks

Overview of Lecture 7 Categories of Networks (MANs) Internetworks The OSI Model

Metropolitan Area Networks

Internetworks

The OSI Model A layered framework for the design of network systems that allows communication across all types of computer systems regardless of their underlying architecture

OSI Layers Please Do not Touch Steve’s Pet Alligator

The OSI Model

Organization of Layers Network Support Layers Layers 1,2,3 User Support Layers Layers 5,6,7

Exchange using the OSI Model

Summary Categories of Networks (MANs) Internetworks The OSI Model

Suggested Reading Section 2.5,3.1,3.2 “Data Communications and Networking” 2nd Edition by Behrouz A. Forouzan