A Network is a set of devices connected by media links. These devices are termed as Nodes. A Node can be any device which is capable of sending and/or receiving data from/to other Nodes. The links are called communication channels .
CONTENT MAIN MENU SUMMARY EXIT EXERCISE OBJECTIVE Definition of Network Topology Types of Network Topology Differentiation Between the Types of Network Topology
DEFINITION What is a Topology ? The physical topology of a network refers to the configuration of cables, computers and other peripherals.
TYPES OF NETWORK TOPOLOGY Three commonly used network topologies are:- Bus network . Ring network . Star network .
A common solution to traffic problems is to implement switches.
Switches also referred to as multi port bridges.
Automatically determines the MAC address of the device connect to each port of the switch.
DIFFERENTIATION BETWEEN THE THREE TYPES OF NETWORK TOPOLOGY WHAT IS DIFFERENTIATION BETWEEN THE THREE OF NETWORK TOPOLOGY?
DIFFERENTIATION BETWEEN THE THREE TYPES OF NETWORK TOPOLOGY STAR 2) If the hub or concentrator fails, nodes attached are disabled. 2) Security can be implemented in the hub/switch. 1) Requires more cable length than a linear topology. 1) Easy to install and wire. 3) More expensive than linear bus topologies because of the cost of the concentrators. 3) Easy to detect faults and to remove parts. DISADVANTAGE ADVANTAGE
DIFFERENTIATION BETWEEN THE THREE TYPES OF NETWORK TOPOLOGY BUS 2) Terminators are required at both ends of the backbone cable. 2) Requires less cable length than a star topology. 1) Entire network shuts down if there is a break in the main cable. 1) Easy to connect computer or peripheral to a linear bus. 3) Difficult to identify the problem if the entire network shuts down. DISADVANTAGE ADVANTAGE
DIFFERENTIATION BETWEEN THE THREE TYPES OF NETWORK TOPOLOGY RING 2) If any of the nodes fail then the ring is broken and data cannot be transmitted successfully. 2) The transmission of data is relatively simple as packets travel in one direction only.
Data packets must pass through every computer
between the sender and recipient therefore, this makes it slower.
1) Data is quickly transferred without a ‘bottle neck’. 3) It is difficult to troubleshoot the ring. DISADVANTAGE ADVANTAGE