Ring network
From Free net encyclopedia
Image:Ring-Topology.gif A ring network is a topology of computer networks where each node is connected to two other nodes, so as to create a ring. The most popular example is a token ring network.
Ring networks tend to be inefficient when compared to star networks because data must travel through more points before reaching its destination. For example, if a given ring network has eight computers on it, to get from computer one to computer four, data must travel from computer one, through computers two and three, and to its destination at computer four. It could also go from computer one through eight, seven, six, and five until reaching four, but this method is slower because it travels through more computers.
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Advantages and Disadvantages of a Ring Network
Advantages
- All stations have equal access
- Each node on the ring acts as a repeater, allowing ring networks to span greater distances than other physical topologies.
- Because data travels in one direction high speeds of transmission of data are possible
- When using a coaxial cable to create a ring network the service becomes much faster.
Disadvantages
- Often the most expensive topology
- If one node fails, the rest of the network could also fail
- Damage to the ring will affect the whole network
See also
- FDDI Fiber Distributed Data Interface
- Token Ring
- IEEE 802.5 The IEEE standard covering Token Ring Networks
- SONET Synchronous Optical NETwork
- Fibre Channel Arbitrated Loopca:Xarxa en anell
es:Red en anillo pt:Rede em anel ru:Кольцо (топология компьютерной сети)