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STP Puzzle Overview

STP Puzzle Overview

🕔19:59, 12.Dec 2011

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. Your job: determine as

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STP Puzzle #2

STP Puzzle #2

🕔13:12, 9.Dec 2011

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 puzzles give

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STP Puzzle #1, Answer Part 3

STP Puzzle #1, Answer Part 3

🕔11:17, 6.Dec 2011

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 one. Note that

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STP Puzzle #1, Answer Part 2

STP Puzzle #1, Answer Part 2

🕔13:03, 5.Dec 2011

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 through

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STP Puzzle #1, Answer Part 1

STP Puzzle #1, Answer Part 1

🕔14:05, 2.Dec 2011

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 network. Your job: figure out

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STP Puzzle #1

STP Puzzle #1

🕔11:29, 29.Nov 2011

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 concepts

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Auto-summary Essentials + an Example

Auto-summary Essentials + an Example

🕔13:00, 12.Nov 2011

Today’s post is a ramble on the [no] auto-summary command. Think you know it? The proof of the pudding: give me one sentence that specifically states on what routers you need to consider the auto-summary setting, and characterize what happens

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An auto-summary exercise

An auto-summary exercise

🕔09:16, 9.Nov 2011

I just wrapped a Config Museum lab over in the CCENT Skills blog, but it happened to bring up a nice CCENT topic: auto-summary. Many people struggle with the concept. So I figured I’d use that lab as a backdrop

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