2. BUS TOPOLOGY
All work station connect to same
cable segment.
Commonly used for implement
Ethernet at 10 Mbps.
A cable is terminated at each
end.
Wiring is normally done into to
point.
3. Advantages
Easy to implement and extend.
Well suited for temporary network.
Cheapest to implement.
Failure of one node doesn’t effect other.
Small network doesn’t require high speed.
4. Disadvantages
Difficult to administrator or trouble shoot.
Limited cable length and number of station.
Maintain cost may be higher.
Failure of one cable disable entire network.
Large network fails to pass signal with low speed.
5. Ring topology
The data flows clock wise or anti-clock
wise.
A PC who wants to send data
needs to have a token with them.
PC which will send any frame in
the network will first generate the
token.
At a time only one user can send
the data.
If one link fails the whole network
fails.
6. Advantages
Equal access for all users.
Each work station has full access speed to the ring.
Easily extend size of network.
Setup of network done easily.
7. Disadvantages
Difficult connection and costly wiring.
Expensive adapter card.
If one node fails the rest of the network also fails.
If a cable is fail then rest of the network fails.
8. Star topology
All wiring is done from a central
point hub/switch.
Each node connected data link
to central switch.
Data passed throw the switch
before continuing its destination.
The switch manages and control
all function of the network.
It also act as a repeater for the
flow of data.
9. Advantages
Easy to implement and maintain even in large network.
If failure of central node will not have major effects on the network.
Security can be implemented in hub or switch.
10. Disadvantages
It has a limited cable length and number of station.
Maintain cost maybe higher in the long run.
Failure of the central node can disable entire network.
