Friday, November 2, 2007

Network Types In Telecommunication

Network Types :

  • Circuit switched network. At start of complete message transaction (telephone call) a route through the network is identified and held for the entire duration of the call
  • Packet switched network. Routes small ‘chunks’ (packets) of the message down the best route at that time – least noisy, least congested…

Advantages Of Packet networks
  • Optimise route on packet by packet basis
  • Attractive for ensuring best use of the network – optimum traffic throughput
  • Signalling overhead to ensure the packets arrive in the correct sequence at the receiver when they have travelled via different paths
Packet switched good for data - Internet

Circuit switched more attractive for voice

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