Packet Switching and Circuit Switching

Difference between two swtiching methods:

	Packet switching	Circuit switching
Definition	Packet switching is a network communication method in which the data get transmitted in blocks, regardless of type and content, called packets. In this kind of switching, the link capacity is used optimally, and the response time is lesser.	Circuit switching is scheme in which the network sets up a circuit between nodes and terminals before the communication starts, just like the nodes were already connected.
Differences	Bandwidth is allocated dynamically.	Fixed bandwidth allocation.
	Packets has header, FCS.	Don’t deal with data content and error-checking
	Better buffering. System can be operated at different bit rate to internetwork.	Simple buffering
	May be more economical as not needed dedicated circuit.	Costs more for hardware.
	The packet needs to be re-transmitted every time when it gets lost, damaged before it is received in this method.	Once connection is established, communication is fast and almost errorless.

ankil patel