What are the uses of subnetting ?

Subnetting, a core concept within computer networking, involves dividing a larger network into smaller, manageable subnetworks (or subnets). This technique is widely used for several critical purposes in network management and design:

1. Improved Network Performance and Speed: By dividing a larger network into subnets, network traffic can be isolated within each subnet, reducing the amount of data that needs to traverse the network. This reduces the overall load on the network’s hardware, such as switches and routers, thereby improving performance and reducing latency.

2. Enhanced Security: Subnetting can enhance security by isolating sensitive areas of a network. For example, a company could place its public web servers on a different subnet from its internal servers. This way, even if the web servers are compromised, the attackers wouldn’t automatically gain access to the internal servers. Subnetting also makes it easier to implement security policies by subnet, restricting access as necessary.

3. Simplified Management: Managing a large, unified network can be complex and challenging. Subnetting breaks down this large network into smaller, more manageable pieces. This simplification comes in handy, especially when deploying specific policies or configurations to different parts of a network. Network administrators can apply changes to individual subnets without affecting the entire network.

4. Efficient Use of IP Addresses: Subnetting allows for more efficient use of IP addresses. By creating subnets, an organization can use a single IP class network and allocate it across