Computer Network | Circuit switching v/s Packet switching

In this blog we'll understand and learn about types of Switching. Switching is the process to forward packets coming in from one port to a port leading towards the destination.

When data comes on a port it is called ingress, and when data leaves a port or goes out it is called egress. A communication system may include number of switches and nodes.

In this post you'll address the difference b/w Circuit switching and Packet switching.

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Let's understand what is the basic difference b/w both the switching techniques

Public Telephone Network is a good example of circuit switching. Suppose you want to transfer a message from T1/T2 to T3/T4 (you can choose one-to-one connection too ,i.e., T2 to T4), now what happens in a circuit switch is that, at first it finds a path between the

Figure 1 (Circuit switching)

sender and the receiver (see figure 2) and once the path is established, it remains active until the connection is terminated.

Figure 2 (Circuit Switching)

Whereas in the case of packet switching, let's assume a graph as a path between both the sender and the receiver. The data is firstly divided/split into packets, which are then sent through different paths of the network towards the receiver.

Figure 3 (Packet switching)

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