CIRCUIT SWITCHING

• is established between two station.

• fixed transmission of connection until it is terminated.

• capacity unused by the circuit cannot be used by other circuits.

•Data is transmitted by splitting into small packets.

•Each packet is labelled with its destination and sequence number.

CIRCUIT SWITCHING VS PACKET SWITCHINGPACKET SWITCHING

•The packets travel independently and may be routed in different path until they reached

their destination. 

•Each packet is labelled with its destination and sequence number.

•The packets travel independently and may be routed in different path until they reached

their destination.

COMPARARATION OF CIRCUIT SWITCHING VS PACKET SWITCHING

	CIRCUIT SWITCHING	PACKET SWITCHING
RESOURCES	Only one user at 1 time	Multiple user at same time on same line
SPEED	Communication takes place in real time  (no queuing delay)	May delay in transmission of data
EFFICIENCY	Line is under utilized to its capacity	Line can be utilized to its full band width
APPLICATION	No error checking Guarantee a feedback	Error control is provided Acknowledgement system is provided
COST	Higher	Cheaper (because multiple users share the cost)