What is subnetting?

Subnetting is the process of dividing a larger network into smaller sub-networks, known as subnets. This technique is utilized to improve network performance and security. By breaking down a large network into more manageable segments, subnetting allows for better traffic management, easier troubleshooting, and improved overall efficiency.

In addition to these benefits, subnetting helps optimize the use of IP addresses. For example, in an organization with many small departments, subnetting enables the allocation of specific IP ranges to each department, which minimizes broadcast traffic and network congestion.

This method plays a crucial role in the design of networks, allowing administrators to tailor configurations to the requirements of different segments, which can lead to enhanced security practices by isolating different parts of a network.

It's important to note that while connecting different networks, increasing bandwidth, and enhancing encryption are all important aspects of network management and security, they do not specifically define the concept of subnetting.