Circuit Switching | Packet Switching Sr. Circuit Switching Packet Switching 1 Circuit switching was developed to handle voice traffic but also digital data (although inefficient) Packet switching was designed to provide a more efficient facility than circuit-switching for bursty data traffic 2 With circuit switching a dedicated path is established between two stations for communication With packet switching, a station transmits data in small blocks, called packets 3 On each physical link, a logical channel is dedicated to the connection. Communication via circuit switching involves three phases: 1.)Circuit Establishment 2.)Data Transfer 3.)Circuit Disconnect At each node packets are received, stored briefly (buffered) and passed on to the next node. 4 Dedicated path No Dedicated path 5 Path is established for entire conversation Route is established for each packet(Datagram Type) Or Route is established for entire conversation(Virtual Circuit Type) 6 Fixed bandwidth Dynamic bandwidth 7 For Eg. PSTN For Eg. GPRS/EDGE
