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Chapter 11

Troubleshooting Layer 2 Switching: Answers

Troubleshooting Layer 2 Switching: Answers

🕔12:05, 9.Mar 2017

Can you think abstractly about how layer 2 switching works, and how VLANs and trunks impact their forwarding decisions? Or do you need to see the specific configurations to make sense of it? This latest practice question pulls in a

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Troubleshooting Layer 2 Switching

Troubleshooting Layer 2 Switching

🕔12:05, 7.Mar 2017

Layer 2 switching seems easy – but then you must think through how it works in a real network. Applying the ideas proves whether you really understood the concepts or not. This next question gives you that kind of practice

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Answer to Question: Destination MAC Only?

Answer to Question: Destination MAC Only?

🕔12:05, 14.Dec 2016

The previous post posed a question that appeared straightforward – but one that set up a couple of the more common mistakes that people make with the subject of Layer 2 frame forwarding.  The goal was twofold: yet another practice

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Switch Forwarding Question: Destination MAC Only?

Switch Forwarding Question: Destination MAC Only?

🕔12:05, 13.Dec 2016

How does a Layer 2 switch choose where to send a frame? Does it think about more than the destination MAC address? One of the common mistakes videos in the new “CCENT ICND1 100-105 Exam Prep LiveLessons” product talks about

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Answers: Data and Voice VLAN 2

Answers: Data and Voice VLAN 2

🕔09:10, 11.Jun 2016

This latest lab takes a task that is relatively simple to learn and master and puts it into the context of a simple migration. The task: to migrate some switch access ports from connecting to PCs only, to instead connect

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Data and Voice VLAN 2

Data and Voice VLAN 2

🕔09:05, 10.Jun 2016

Ready to prepare some access switches to support IP phones? This latest config labs sets up the problem for that specific task. And yes, voice VLANs are another one of the topics now explicitly listed in the new ICND1 100-105

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Answers: Data and Voice VLAN 1

Answers: Data and Voice VLAN 1

🕔09:10, 4.Jun 2016

Configure a VLAN? Easy. Configure both a voice and data VLAN on an access port? Not too hard. Make sure it all works in a small network? Yet another small step, all required learning on the path to being a

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Data and Voice VLANs 1

Data and Voice VLANs 1

🕔09:05, 3.Jun 2016

Creating a VLAN is simple: just configure the vlan number command. However, even in a small network with four switches, like the one used in this next lab, a VLAN config lab can give you a few things to think

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Answers: Trunking Puzzle 1

Answers: Trunking Puzzle 1

🕔09:05, 8.Apr 2016

Lots of switch trunks, lots of different requirements, resulting in a variety of configuration combinations. Can you remember all the trunking config options without having to look up commands or using CLI help? Check out the lab first as always,

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Trunking Puzzle 1

Trunking Puzzle 1

🕔09:05, 6.Apr 2016

You can memorize VLAN trunking commands by staring at a table – but you will remember them much better if you try different combinations in sample labs, and especially if you try them from the CLI of some gear or

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