Ring topology, as shown in Figure 1.5, is robust, while it does not have the complexity of the full mesh topology. Hence it is used in core transmission backbone networks.
A comparison of the different physical topologies is summarized in Table 1.2.
Mesh |
Star |
Bus |
Ring |
|
---|---|---|---|---|
Advantages |
Robust, data privacy |
Less costly than mesh, easier fault identification and isolation |
Ease of installation, cost-effective for long line of devices |
Better reliability than bus |
Disadvantages |
Complex and costly for a large number of devices |
Hub failure causing total network breakdown |
Difficult fault isolation, path break causing isolation into two groups of devices |
Path break does not cause isolation into a dual ring |
Application examples |
Switching backbone connecting the main computers |
Local area network in offices |
Coaxial cable TV in households or buildings |
Long haul transmission backbone network connecting cities |
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