MicroNugget: How to Select Subnet Sizes for VLANs

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In this video, Jeremy Cioara covers how to determine the proper subnet size for VLANs. He begins by correlating VLANs with subnets, then discusses how to align these two concepts effectively. He’ll walk you through how to design and implement Switch VLANs in real-world settings.

Subnetting essentially means adjusting the bit boundary of the subnet mask that’s attached to every IP address. This lets you allocate how many bits are dedicated to networks and hosts, giving you the ability to create custom-sized networks for your environment.

In reality, there are really only five subnets you’ll commonly encounter: large client, medium client, small client, redundant WAN uplinks, and point-to-point WAN uplinks. While these all have their differences, the strategies you learn will enable you to effectively determine the proper subnet size in 98 percent of instances.

One of the core concepts Jeremy discusses is how VLANs and subnets interact with each other, regardless of subnet size.

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• Real-World VLAN Design and Implementation | https://courses.cbt.gg/b8z
• Building a Business Switched Network | https://courses.cbt.gg/ho3
• Building a Network Design | https://courses.cbt.gg/0g9
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