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Virtual vs. Physical LANs: Device Functionalities

Article Description

If you have a good grasp of the basics of local access networks (LANs), it's time to step up your game. Sean Wilkins, co-author of CCNA Routing and Switching ICND2 200-101 Official Cert Guide, explores the concepts behind virtual LANs, how they differ from physical LANs, and why VLANs make sense for modern organizations.


As long as your understanding of physical LAN principles was solid before reading this article, you should now have a good idea of what VLANs are and how greatly they affect how a network is designed and implemented. The VLAN’s implementation opens a number of doors in terms of the flexibility of a network’s design. Virtual networks will be implemented even more frequently in the next few years, as network design changes with newer technologies, making understanding their operation even more important.