As I worked on upgrading my home network with a NixOS router, I found myself once again needing to update the VLAN configuration on my Aruba Instant O

VLAN Configuration by Examples | The Farming Coders

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2023-03-19 22:30:08

As I worked on upgrading my home network with a NixOS router, I found myself once again needing to update the VLAN configuration on my Aruba Instant On 1930 PoE switch. However, I felt hesitant to do so due to my previous struggles in grasping the concept of VLAN despite reading multiple online articles.

Fortunately, my friend Hao recommended an informative post on the topic which, combined with an hour of experimentation, finally allowed me to understand VLAN sufficiently to implement my ideas. In this post, I aim to share my newfound practical knowledge with examples, hoping to assist others who may have encountered similar difficulties.

Disclaimer: Not being a network engineer, my understanding and explanation of VLANs are based on a simplified mental model. While I believe that this model is both easy to understand and accurate enough for practical use, it may not encompass all technical intricacies and complexities of the concept.

A switch, specifically a Layer 2 (L2) switch, is a networking device with several physical ports, each typically featuring an RJ45 or SFF Ethernet interface. Every port is capable of connecting to a single device and the switch operates on L2 using MAC addresses.

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