VLANs for sysadmins: The basics

Feeling a little shaky on your VLAN knowledge? This article gives you the fundamentals.
Virtual Local Area Networks (VLANs, for short) may sound daunting to a sysadmin without any prior network experience. However, they’re pretty simple bits of network configuration that allow you to more efficiently use your network hardware resources. All but the smallest networks are typically split into VLANs, and understanding how to properly configure and troubleshoot them can save you hours of back-and-forth with your network team. I begin this article with a foundational knowledge of VLANs, so by the end, you should be pretty comfortable with VLAN fundamentals. Read More

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