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Switching

Max Hather Inglés 2 fichas

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1Circuit SwitchingIn circuit switching a path between the two devices is established first and all the packets are sent along that path in order. The path is reserved for the duration of the message and then shuts down.
This does tie up resources on the network that could possibly be used more efficiently, but it does mean that packets arrive to their destination in the right order.
2Packet SwitchingPackets are sent individually across a network. Packets from a particular message may take different routes according to availability and traffic conditions. They are forwarded form one router to the next. They are assembled to form the completed message at the receiving end. This process is called packet switching. It improves the reliability of sending messages because if one route is down or congested, another can be found.