network topologies

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By: preetippt (11 month(s) ago) Private Comment

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ASSIGNMENT OF TOPOPLOGY Basic Concepts of Computer Networks and Communications Network Topology Submitted by- Paramjot Singh M.Sc.(IT) 3228 Khalsa college patiala

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DEFINITION What is a Topology ? The physical topology of a network refers to the configuration of cables, computers and other peripherals.

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TYPES OF NETWORK TOPOLOGY Three commonly used network topologies are:- Bus network. Ring network. Star network.

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BUS TOPOLOGY All computers and devices connected to central cable or bus. Consists of a main run of cable with a terminator at each end. Popular on LANs because they are inexpensive and easy to install.

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BUS TOPOLOGY

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BUS TOPOLOGY

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RING TOPOLOGY Cable forms closed ring or loop, with all computers and devices arranged along ring. Data travels from device to device around entire ring, in one direction. Primarily is used for LANs, but also is used in WANs.

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RING TOPOLOGY

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STAR TOPOLOGY All devices connect to a central device, called hub. All data transferred from one computer to another passes through hub.

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STAR TOPOLOGY

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STAR TOPOLOGY

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In the mesh topology each computer are connected with each other by separate cable. Create point to point connection to every device on network. If one cable fail data always has alternative path to get to its destination. On a large scale, you can connect multiple LANs using mesh topology with leased line. This type topology generally use in military area. MESH TOPOLOGY

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DIFFERENTIATION BETWEEN THE THREE TYPES OF NETWORK TOPOLOGY WHAT ARE THE ADVANTAGES AND DISADVANTAGES OF THE THREE OF NETWORK TOPOLOGY?

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SUMMARY BUS TOPOLOGY DEFINITION All computers and devices connected to central cable ADVANTAGE Easy to connect a computer or peripheral to a linear bus. Requires less cable length than a star topology. DISADVANTAGE Entire network shuts down if there is a break in the main cable. Terminators are required at both ends of the backbone cable. Difficult to identify the problem if the entire network shuts down.