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What is the difference between Circuit Switching and Packet Switching?
Circuit switching is the transmission technology that has been used since the first communication networks in the nineteenth century.
In circuit switching, a caller must first establish a connection to a callee before any communication is possible.
During the connection establishment, resources are allocated between the caller and the callee.
Packet switching is a more recent technology than circuit switching which addresses a disadvantage of circuit switching :
The need to allocate resources for a circuit, thus incurring link capacity wastes when no data flows on a circuit.
Packet switching introduces the idea of cutting data on a flow into packets which are transmitted over a network without any resource being allocated.
In circuit switching, a caller must first establish a connection to a callee before any communication is possible.
During the connection establishment, resources are allocated between the caller and the callee.
Packet switching is a more recent technology than circuit switching which addresses a disadvantage of circuit switching :
The need to allocate resources for a circuit, thus incurring link capacity wastes when no data flows on a circuit.
Packet switching introduces the idea of cutting data on a flow into packets which are transmitted over a network without any resource being allocated.