Someone came before us at most every company and made up an IP addressing plan. These exams test our ability to look at that plan and decipher what the plan does, including answering this question: “How many subnets does this
This post answers an earlier config VM piece that asked you to confiugre some IPv6 static routes. (Turns out I forgot to post the answer, so… here it is!) Since it has been so long, if you’re thinking “huh?”, click
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 puzzles can help. The realization
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
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
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
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
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
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
This blog post begins with a router triangle, IPv6 addresses, and working interfaces. All routers can ping their own IPv6 addresses, but the routers only know their own IPv6 connected routes. Your job: Add static IPv6 routes for the LAN
