Networking and the Internet Network Classification Dr M

Networking and the Internet Network Classification Dr. M. Tanvir Afzal

Network Classification Area-wise classification: ü ü 2 Personal Area Network (PAN). Local Area Network (LAN) Metropolitan Area Network (MAN) Wide Area Network (WAN)

Network Classification Personal Area Network (PAN) ü Short range communication (less than a few meters) ü Wireless headset and smartphone ü Wireless mouse and PC. 3

Network. Classification Local Area Network (LAN) ü Collection of computers in a single building. ü Computer in a university campus. ü Manufacturing plant. 4

Network Classification Metropolitan Area Network (MAN) ü Network of intermediate size, one comprising of local community. ü Digital network based surveillance system of a city. ü Parking systems interconnected across the city. 5

Network Classification Wide Area Network (WAN) ü Links machines over a greater distance in neighboring cities. ü Connection using internet 6

Network Classification Open vs closed classification: Open network: network’s internal operation is based on designs that are in the public domain. The Internet Closed network: innovations owned and controlled by a particular entity such as an individual or a Corporation – Security agencies. 7

Network Classification Topology based classification ü Topology of network which is pattern in which the machines are connected. ü Bus: connection through a common communication line called Bus. ü Star: one machine is central focal point and all other are connected to it. 8

Network Classification Topologies 9 ü Popular in 1990 s when implemented in standard as Ethernet. ü Roots in 1970 s, when one focal computer and many terminals

Summary Network classification ü Area based classification ü Open vs closed systems ü Topology based classification 10