STP Puzzle

Root Port, Designated Port, and tiebreakers: Today’s #CCNA fun to wrap up this STP puzzle. Today’s post analyzes the rest of this puzzle’s STP roles and states, now that I told you that all the [...]

Plain and simple: check out the STP Puzzle 3 problem statement, and predict all the STP details you can. Todays post gives what I think you can (and cannot) figure out from the initial problem [...]

  Who will be elected root in this latest #CCNA STP Puzzle? I just voted, so it made me think about doing another STP puzzle series. The first step: which switch becomes root? Big picture: [...]

If you didn’t see the puzzle problem statement, then the answers won’t make as much sense. Especially for this one, the new post this week that gives some suggestions on how to attack these STP [...]

Here’s the 2nd STP Puzzle. As with most of these drill-style practice problems, take a look at the problem statement, and work it out. No need to rush on this one – just get it right. These STP [...]

This post wraps up the discussion of STP Puzzle #1 with a brief look at finding the designated ports (DPs) on each link between switches. As usual, check out the original post to make sense of [...]

This post looks again at STP Puzzle #1. As usual, check out the original post to make sense of this one. Part 1 of the answer determined that switch S4 is the root in this puzzle. This post walks [...]

This post starts to answer STP Puzzle #1. As usual, check out the original post to make sense of this one. These puzzles give you some info about Spanning Tree Protocol (STP) in a particular [...]

This blog post is the first of what may be a whole new type. You can read all day about Spanning Tree Protocol (STP), and learn the theory, but that’s not enough. When you later try to apply STP [...]

I’ve named a new type of blog post: an STP Puzzle. The big idea is pretty simple. The problem tells you some (but not all) facts about Spanning Tree Protocol (STP) in a small switched network. [...]