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September 2018

STP and Graph Theory

Spanning Tree Protocol (STP) is one of several methods of avoiding loops in bridged local area networks. For most of us, working with the typical corporate LAN, STP is the default configuration of switches and it just works. But it may not always be the most efficient way to connect switches. This post looks at exactly what a spanning tree is, why it is used to solve the problem of loops in a network, and why it may not always be the most efficient way to do that.

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