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Circuit switching VS Packet switching


Circuit SwitchingPacket Switching(Datagram type)Packet Switching(Virtual Circuit type)
Dedicated pathNo Dedicated pathNo Dedicated path
Path is established for entire conversationRoute is established for each packetRoute is established for entire conversation
Call setup delaypacket transmission delaycall setup delay as well as packet transmission delay
Overload may block call setupOverload increases packet delay

Overload may block call setup and increases packet delay

Fixed bandwidthDynamic bandwidthDynamic bandwidth
No overhead bits after call setupoverhead bits in each packetoverhead bits in each packet

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