Spanning Tree Protocol (STP) was standardized as IEEE in . Its job is simple: create a loop-free logical topology from a physical topology that may contain redundant links. STP lets you build redundant connections for fault tolerance while automatically blocking the extra paths. If an active link fails, STP unblocks a backup path. You get the reliability of redundant cabling without the chaos of loops. Every managed switch runs STP by default.
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$ curl repovive.com/roadmaps/network-design/spanning-tree-and-link-aggregation/stp-purpose-and-history
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