DATA COMMUNICATION Lecture-5.

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Presentation transcript:

DATA COMMUNICATION Lecture-5

Recap of Lecture 4 Standards Standard Organizations Line Configuration Categories of Line Configuration

Overview of Lecture 5 Topology Categories of Topologies Transmission Modes

Topology “The Topology is the geometric representation of the relationship of the links and linking devices” OR “Topology defines physical or logical arrangement of links in a Network”

Categories of Topology Mesh Star Tree Bus Ring

Mesh Topology

Links and Ports in Mesh Topology Number of Links required to connect ‘n’ devices: n(n-1)/2 Number of I/O Ports: n-1

Links and Ports in Mesh Topology In figure above, we have 5 Nodes, therefore: No. of Links= 5(5-1)/2 = 10 No. of I/O Ports= 5-1 = 4

Star Topology

Tree Topology

Bus Topology

Summary Topology Categories of Topologies

Suggested Reading Section 2.2 “Data Communications and Networking” 2nd Edition by Behrouz A. Forouzan