Daniel Dib of Lost In Transit writes:

Introduction

This post is inspired by a post at IEOC about Uplinkfast and TCN which
can be found here.

Before we get to those parts, let’s recap how Ethernet and STP work together.

Daniel has a great overview of spanning tree as well as some of the peculiar details of what happens when things don’t go right.

Read more at: Ethernet, STP, Topology change and the behaviour of Ethernet