https://aperturezone.com/tags/stp/ Recent content in Stp on Aperture Zone https://aperturezone.com/logo.webp https://aperturezone.com/logo.webp Hugo -- gohugo.io fr-fr Fri, 13 Mar 2026 00:00:00 +0000 https://aperturezone.com/posts/stp/ Fri, 13 Mar 2026 00:00:00 +0000 https://aperturezone.com/posts/stp/ <h1 id="heading"></h1> <hr> <h2 id="introduction">Introduction</h2> <p>If you have multiple switches, you’ve surely heard of the <strong>Spanning Tree Protocol</strong>. But there’s often a gap between theory and practice—especially when you encounter unusual hardware with unexpected interfaces.</p> <p>This article details a real-world implementation of MSTP on three HP 1910 switches (based on Comware H3C), including the problems encountered and the solutions found. Spoiler: the GUI won’t be your friend.</p> <hr> <h2 id="why-stp">Why STP?</h2> <h3 id="the-loop-problem">The Loop Problem</h3> <p>In a network with multiple interconnected switches, <strong>physical loops</strong> can exist—whether intentional for redundancy or accidental. Without protection, a broadcast frame enters a loop and circulates indefinitely, duplicating itself with each pass. Within seconds, the network is 100% saturated: this is a <strong>broadcast storm</strong>, and it renders the infrastructure completely unusable.</p>