Point-to-point networks consist of many connections between individual pairs of machines. Data is usually transferred in relatively small fragments called packets (units bits or bytes). To go from the source to the destination, a packet on this type of networks may have to first visit one or more intermediate routers. When a packet is sent from one router to another intermediate routers, the entire packet is stored at each intermediate router till the output line is free and then forwarded. A subnet using this principle is called point to point or packet switched network.
Some of possible topologies for a point to point subnet are:
- Star
- Ring
- Tree
- Bus
- Mesh
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