Creating a subnet allows you to limit the number of routers that network traffic has to pass through. An engineer will effectively create smaller mini-routes within a larger network to allow traffic to travel the shortest distance possible.

Why do we make subnets?

A subnet, or subnetwork, is a network inside a network. Subnets make networks more efficient. Through subnetting, network traffic can travel a shorter distance without passing through unnecessary routers to reach its destination.

What is the use of subnet?

A subnet mask is used to divide an IP address into two parts. One part identifies the host (computer), the other part identifies the network to which it belongs.