PRESENTATION OUTLINE
Here are 4 different types of topology:
i. Mesh;
ii. Bus;
iii. Ring;
iiii.Star.
Bus Topology is the simplest of network topologies.
Advantages:
1.Cheap to install-don't need much cabels;
2.Linear Bus network is mostly used in small networks. Good for LAN(Local Area Network);
3. Bus topology costs very less.
Disadvantages:
1.Security is very low because all the computers receive the sent signal from the source;
2. There is a limit on central cable length and number of nodes that can be connected
;
3.If the main cable , encounters some problem, whole network breaks down.
In a mesh network topology, each of the network node, computer and other devices, are interconnected with one another.
Advantages:
1.If one of the components fails there is always an alternative present;
2.Expansion and modification in topology can be done without disrupting other nodes;
3.Data can be transmitted from different devices simultaneously.
Disadvantages:
1.Set-up of topology is too difficult;
2.Mesh topologies are very hard to maintain and manage;
3. You will need a lot of capital to invest in.
In Star topology, all the components of network are connected to the central device called “hub” which may be a hub, a router or a switch.
Advantages:
1. Easy to connect new nodes or devices;
2.Centralized management;
3. Failure of one node or link doesn’t affect the rest of network.
Disadvantages:
1.Too much dependency on central device;
2.he use of hub, a router or a switch as central device increases the overall cost of the network;
In Ring Topology, all the nodes are connected to each-other in such a way that they make a closed loop.
Advantages:
1.There is no need for network server to control the connectivity between workstations;
2.Each computer has equal access to resources;
3.Additional components do not affect the performance of network.
Disadvantages:
1.Each packet of data must pass through all the computers between source and destination. This makes it slower
;
2. Network cards are expensive;
3.Network is highly dependent on the wire which connects different components.
