Page 19 - TP-Play_V-2.0_Book-8
P. 19

PAN (Personal Area Network)


                                                 These are privately owned networks. PAN is used to establish
                                                 the communication amongst the computers within the range
                                                 of 20 to 30 feet. It can be wired or wireless.




               Personal Area Network

            CAN (Campus Area Network)

            CAN, also known as Cluster Area Network connects two                          Network
                                                                                            Campus
                                                                                            Area
            or more LANs that are limited to specific geographical
            areas, for example, college campus, office building etc.
            A campus area network is larger than LAN since it may

            span in multiple buildings within a specified area.                       Campus Area Network
                TOPOLOGY

            Topology refers to the geometric arrangement of computers or nodes in a network. The
            factors that determine the type of topology are cost, flexibility and reliability. There are five
            different types of topologies. Let us learn about these in detail.
            Bus Topology

            In  this  topology,  all  the  nodes  are  connected  to  a  single
            common path. It is simple and easy to maintain. Additional
            nodes can be connected at any point along its length. But

            this topology suffers from a major disadvantage that fault
            detection in the topology is very difficult.                                   Bus Topology


                                     Ring Topology

                                     In this topology,  all the nodes are  connected  in a circular  path.  The
                                     messages are  travelled  in clockwise or  anti  clockwise direction.  Any
                                     damage to the cable of any node or device can result in breakdown of
                                     the whole network.

                 Ring Topology

            Star Topology

            In this topology, central  node acts as a hub to which all the other
            nodes are connected. As compared to the bus topology, star topology
            requires more devices and cables. The addition of a new node to a
            star topology is difficult as it involves a connection all the way to the

            central node.
                                                                                               Star Topology
                                                                                 Computer Networking         19
   14   15   16   17   18   19   20   21   22   23   24