Topology
Arrangement of computers, cables
Arrangement of computers, cables
and other components on the
and other components on the
network.
network.
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Network Topologies and Commonly Used Protocols: Bus, Star, Ring, and More, Assignments of Computer science
An overview of different network topologies, including Bus, Star, and Ring, and discusses their advantages and disadvantages. Additionally, it introduces commonly used protocols such as TCP/IP, SMTP, FTP, NetBEUI, and ICMP.
Typology: Assignments
2020/2021
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Topology
Arrangement of computers, cables Arrangement of computers, cables and other components on the and other components on the network. network.
Types of Topology
BusBus
StarStar
RingRing
BUS TOPOLOGY
system1 system
system
Trunk line
Only the computer that has the addressOnly the computer that has the address matching the address in the incoming data matching the address in the incoming data is accepted. is accepted. Only one computer at a time can sendOnly one computer at a time can send messages. messages. It is a passive topology in which theIt is a passive topology in which the computers on the bus are not responsible for computers on the bus are not responsible for moving the data. moving the data.
Disadvantages of Bus Topology
It does not work efficiently under heavyIt does not work efficiently under heavy network traffic. network traffic. Too many extensions on a bus can weakenToo many extensions on a bus can weaken the signal. the signal. No need for any interconnecting devicesNo need for any interconnecting devices like Hub. like Hub.
Star Topology
Here the computers are Here the computers are
connected by cable segments to connected by cable segments to
a centralized device called Hub. a centralized device called Hub.
Advantages of Star Topology
It is easy to add new computers to a starIt is easy to add new computers to a star network without disturbing the rest of the network without disturbing the rest of the network. network. Using Hub,it is easy to diagnose networkUsing Hub,it is easy to diagnose network problems. problems. Single computer failure do not bring downSingle computer failure do not bring down the whole network. the whole network.
Disadvantages of Star Topology
If the central Hub fails then the entireIf the central Hub fails then the entire network fail to operate. network fail to operate. Cabling costs are high.Cabling costs are high.
SYSTEM
SYSTEM
SYSTEM
Ring Topology
Advantages of Ring Topology
The Efficiency is 100 percent under heavyThe Efficiency is 100 percent under heavy load conditions. load conditions. The network allows equal access to all theThe network allows equal access to all the computers. computers.
Protocol
It is the set of rules or agreement It is the set of rules or agreement between two communicating parties. between two communicating parties.
Functions of the Protocol
Divide the data into packets.Divide the data into packets. Add addressing and control information toAdd addressing and control information to the packet the packet Buffer the data for transmission.Buffer the data for transmission. Pass the data to the application.Pass the data to the application.