Network topology (LAN
topology)
The arrangement or connection pattern of computers or nodes and other devices of the network is called network topology.
The arrangement or connection pattern of computers or nodes and other devices of the network is called network topology.
The three basic
topologies are:
Bus Topology
Bus Topology
Ring
Topology
Star
Topology
Bus topology
The network topology in which computers and other devices are arranged in linear format which uses a common backbone or wire to connect all the computers and devices is called bus topology.
The network topology in which computers and other devices are arranged in linear format which uses a common backbone or wire to connect all the computers and devices is called bus topology.
The
advantages of bus topology are:
It is easy to set up computers and other devices in
bus topology, because all the devices are connected through a single wire.
It requires fewer cable media, so it is cheaper than
other topologies.
It is easy to add new node to the network.
The
disadvantages of disadvantages are:
The whole network system collapses if the cable or
backbone is damaged.
The network slows down if additional computers are
connected.
The limited length of the cable in a network may
restrict to connect the workstation or devices.
Ring topology (Loop
topology)
The
network topology in which computers are connected in the shape of a circle
without any end points is called ring topology. Each workstations contains two
neighbours for communication or an input and output connections.
Advantages of ring
topology are:
It
is easy to set up and reconfigure.
Each
computer gets equal opportunity to access the network resources.
Disadvantages of ring
topology are:
Failure
of any cable or single computer may affect the entire network.
It
is difficult to detect the errors in this type of network.
Adding
or removing the devices affects the entire network.
Star topology
The
network topology in which all computers or other devices are connected through
a central device called hub or switch is called star topology.
The
advantages of star topology are :
It is easy to detect errors in star topology.
It is easy to detect errors in star topology.
It is set up and
configure.
Failure of a
single computer or cable does not affect the entire network.
The
disadvantages of star topology are:
It requires more cable in comparison of bus topology so it is costlier.
Failure of central devices (hub or switch) break down the whole system.
It requires more cable in comparison of bus topology so it is costlier.
Failure of central devices (hub or switch) break down the whole system.
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