The process of subnetting was initially created to solve the shortage of IP addresses over the internet but has since evolved into an IP management best practice for IP network utilization.Įvery IP address is comprised of three different classes or major networks – Class A, Class B, and Class C. Without subnets, you’d only be able to use one network from each class, which isn’t the most efficient way to work. Subnetting allows network administrators to take bits from the IP address’s host part and use these bits to create smaller networks inside the network. These smaller networks are built up of many other IP addresses sharing the same IP routing prefix as the original IP address used to create the subnets. Once you have these smaller networks, you create a network of interconnecting subnetworks to distribute your network’s load more efficiently. It’s critically important for network administrators in large enterprises to subnet because reorganizing the network in such a way makes it more functional.
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