Circuit switching and packet switching both are methods of implementing communication channels between nodes in a network. However, there are differences in the communication approach.
|Circuit Switching||Packet Switching|
|In circuit switching, a dedicated communication channel is established.||In packet switching, transmitted data is grouped into suitably sized blocks, called packets, that are transmitted via a medium that may be shared by multiple simultaneous communication sessions.|
|A physical communication path is established for the entire session of conversation.||Route is established for each packet.|
|It has fixed bandwith.||It has dynamic bandwidth.|
|No overhead bits after call setup.||Overhead bits are present in each packet.|