How to Find and Fix VLAN and VLAN Trunk Problems! / (Vol 1 Ch 8 Sec 3) Wendell Odoms Network Upskill 2025-08-13 | VLAN troubleshooting for CCNA requires that you master VLAN and trunking configuration, in the context of a typical campus VLAN design. But it also requires you to remember the nooks and crannies of the behavior and show command results when you misconfigure, so you can recognize the problems and fix the configuration.In the first half of this video, I’ll review those core configurations and emphasize the symptoms of the most common configuration mistakes and how to fix them.The second half of the video discusses a couple of less common VLAN and VLAN trunk features: The allowed VLAN list on trunks and the idea of shutting down VLANs. You can live far into your career ignoring these features in production networks, but you will eventually bump into them – and you need to know them for the exams anyway. The second half of the video helps you understand them, with a chance to practice the allowed VLAN lists in the labs described at the end of this video.*Chapters* 00:00 Intro 01:20 Access Port Config and Operation05:54 Trunk Port Config and Operation08:05 Incorrect Trunking Config Combos12:12 Trunk Allowed VLAN Lists19:41 VLANs Defined and Active (No Shut)21:47 CCNA Study Group*Ad Hoc Lab (Video Lab, No Blog Page)*The lab is self-contained in the video: All instructions, with a link to the packet tracer file.🧑🏻🔬 📽️ youtu.be/Vquc4-2Q6mo (Lab Video)
Add Ports AND Go Faster with EtherChannel! / (Vol 1 Ch 10 Sec 3) Wendell Odoms Network Upskill 2025-09-10 | EtherChannel solves a specific problem that occurs when you use multiple links between two LAN devices. For instance, with multiple links between two switches, with Spanning Tree (STP) applied to the LAN, STP blocks on one end of the link, on all links except one. Eight links between two switches? Only one link forwards traffic at a time. Not a great improvement. You get backup links, but not active extra LAN capacity.Enter EtherChannel, which makes all the parallel links active. How? It treats all links as one interface from STP’s perspective. If STP forwards on the EtherChannel, it in effect forwards on all the underlying physical links. Additional logic (the EtherChannel load distribution algorithm) determines which link each frame uses. It provides an elegant and practical solution.This video begins by setting up the problem and solution. The rest of the video then focuses on the implementation, first with static EtherChannels, then dynamic, and then looking at how to verify EtherChannel operation.*Chapters* 00:00 Intro 01:20 Problems Solved by EtherChannel08:01 Static EtherChannel Config18:23 Dynamic EtherChannel Config w/ LACP24:11 EtherChannel Verification Palooza28:13 CCNA Study Group*Related Config Lab – EtherChannel 1* certskills.com/clab509*Vol 1 Part 3 Part Review Video*Specific Tips for Volume 1 Part 3 Review🎥 TBD*Vol 1 Part 2 Part Review Video*Learn how to find and use Part Review Q&A🎥 youtu.be/n44RyVBfc5A========================================*Product Links*Product links below. I make a small affiliate sales commission if you buy something!CCNA Library (Two Book Set):📚 https://ccna.link/nu-cp-lib-ed2All CCNA products at Cisco Press:🖨️ https://ccna.link/nu-cp-allccnaAll Wendell's products at Cisco Press:🧔🏼♂️ https://ccna.link/nu-cp-allwoCiscopress.com/NewCerts Page (News, Announcements):📰 https://ccna.link/nu-cp-newcerts=========================================
BPDU Filter... Always or Under Certain Conditions? / (Vol 1 Ch 10 Sec 2C) Wendell Odoms Network Upskill 2025-09-09 | Learn about the dual nature of BPDU Filter, its conditional and unconditional settings, and how it affects STP and RSTP. Also, pay close attention to how to avoid forwarding loops with unconditional filtering. *Chapters* 00:00 Intro 01:41 Conditional BPDU Filtering10:10 Unconditional BPDU Filtering14:33 CCNA Study Group* Review Video for This Video’s Content*📽️ BPDU Filter Interview Review: youtu.be/GOxMXsjQp-c* STP Optimizations Videos*📽️ PortFast: youtu.be/fZUO74wW9Eo📽️ BPDU Guard: youtu.be/3B0P70PfecA📽️ BPDU Filter: youtu.be/FX6F8EIXVmM📽️ Root Guard: youtu.be/2UbjKi3YlGU📽️ Loop Guard: youtu.be/nMsfd5Fc7Gc========================================*Product Links*Product links below. I make a small affiliate sales commission if you buy something!CCNA Library (Two Book Set):📚 https://ccna.link/nu-cp-lib-ed2All CCNA products at Cisco Press:🖨️ https://ccna.link/nu-cp-allccnaAll Wendell's products at Cisco Press:🧔🏼♂️ https://ccna.link/nu-cp-allwoCiscopress.com/NewCerts Page (News, Announcements):📰 https://ccna.link/nu-cp-newcerts=========================================
Interview Review: BPDU Filter, with and without PortFast / (Vol 1 Ch 10 Sec 2C) Wendell Odoms Network Upskill 2025-09-09 | Learn about the dual nature of BPDU Filtering, its conditional and unconditional settings, and how it affects STP and RSTP. Also, pay close attention to how to avoid forwarding loops with unconditional filtering.*Chapters* 00:00 Introduction00:39 Question 103:14 Question 1: Answers09:21 Question 211:00 Question 2: Answers========================================*Product Links*Product links below. I make a small affiliate sales commission if you buy something!CCNA Library (Two Book Set):📚 https://ccna.link/nu-cp-lib-ed2All CCNA products at Cisco Press:🖨️ https://ccna.link/nu-cp-allccnaAll Wendell's products at Cisco Press:🧔🏼♂️ https://ccna.link/nu-cp-allwoCiscopress.com/NewCerts Page (News, Announcements):📰 https://ccna.link/nu-cp-newcerts=========================================
Interview Review: BPDU Guard: Options and Benefits / (Vol 1 Ch 10 Sec 2b) Wendell Odoms Network Upskill 2025-09-04 | Today’s topic: STP BPDU Guard Today’s Interview Theme: Explain the Major Concepts, Contrast Various ConfigurationsThis video sets up a technical interview scenario with a set of questions. The questions revolve around LAN switching, as discussed in the video linked just below. Your job: 1. Watch this video until you understand the scenario.2. Pause and answer for yourself.3. Watch the rest of the video to hear what I would be hoping to hear from you in a technical interview.youtu.be/kuMbWiJHtxY?si=_ZpXQfXiBj2jxpCE*This Review Video is Associated with This CCNA Content Video:*youtu.be/3B0P70PfecA*Chapters* 00:00 Introduction00:12 Question 1: Concepts02:58 Discussion09:46 Question 2: Configuration10:42 Discussion========================================*Product Links*Product links below. I make a small affiliate sales commission if you buy something!CCNA Library (Two Book Set):📚 https://ccna.link/nu-cp-lib-ed2All CCNA products at Cisco Press:🖨️ https://ccna.link/nu-cp-allccnaAll Wendell's products at Cisco Press:🧔🏼♂️ https://ccna.link/nu-cp-allwoCiscopress.com/NewCerts Page (News, Announcements):📰 https://ccna.link/nu-cp-newcerts=========================================
Rogue Switch Attack? Protect Your Network w/ BPDU Guard / (Vol 1 Ch 10 Sec 2b) Wendell Odoms Network Upskill 2025-09-04 | In this video, we dive deep into STP BPDU Guard and its crucial role in protecting your network from forwarding loops and other potential dangers. Learn how BPDU Guard works alongside PortFast to enhance your network's stability and security.We'll cover:- What BPDU Guard is and how it prevents forwarding loops- The importance of protecting PortFast with a tool like BPDU Guard- Intricacies of BPDU Guard configuration and verification- BPDU operation both with and without PortFast- Sets up the next video’s comparison between BPDU Guard and BPDU FilterWhether you are preparing for your CCNA certification or looking to strengthen your network management skills, this video is packed with essential information and practical tips. Protect your network and ensure smooth operations by understanding and implementing STP BPDU Guard effectively!*Chapters* 00:00 Intro 01:50 BPDU Guard Basics06:52 BPDU Guard with PortFast (Independent)11:18 BPDU Guard Global Config (Dependent)13:37 BPDU Guard on Trunk Ports15:27 PortFast Loop Danger16:21 CCNA Study Group* Review Video for This Video’s Content*📽️ BPDU Guard Interview Review: youtu.be/OFVVxSGAQ0A* STP Optimizations Videos*📽️ PortFast: youtu.be/fZUO74wW9Eo📽️ BPDU Guard: youtu.be/3B0P70PfecA📽️ BPDU Filter: youtu.be/FX6F8EIXVmM📽️ Root Guard: youtu.be/2UbjKi3YlGU📽️ Loop Guard: youtu.be/nMsfd5Fc7Gc========================================*Product Links*Product links below. I make a small affiliate sales commission if you buy something!CCNA Library (Two Book Set):📚 https://ccna.link/nu-cp-lib-ed2All CCNA products at Cisco Press:🖨️ https://ccna.link/nu-cp-allccnaAll Wendell's products at Cisco Press:🧔🏼♂️ https://ccna.link/nu-cp-allwoCiscopress.com/NewCerts Page (News, Announcements):📰 https://ccna.link/nu-cp-newcerts=========================================
Interview Review: STP PortFast – Where and at What Cost? / (Vol 1 Ch 10 Sec 2a) Wendell Odoms Network Upskill 2025-09-03 | In this interview review, we discuss the implementation of STP PortFast, its benefits, risks, and costs. Learn about STP convergence, Edge Ports, and how to prevent forwarding loops in your network. Perfect for CCNA candidates!Today’s topic: STP PortFast Today’s Interview Theme: Explain the Benefits and the Danger, Plus Basic ConfigThis video sets up a technical interview scenario with a set of questions. The questions revolve around LAN switching, as discussed in the video linked just below. Your job: 1. Watch this video until you understand the scenario.2. Pause and answer for yourself.3. Watch the rest of the video to hear what I would be hoping to hear from you in a technical interview.youtu.be/kuMbWiJHtxY?si=_ZpXQfXiBj2jxpCE*This Review Video is Associated with This CCNA Content Video:*TBD*Chapters* 00:00 Introduction00:44 Question 1: Concepts02:55 Answer Part A: PortFast Operation05:27 Answer Part B: PortFast Dangers07:49 Question 2: Config08:47 Answer: Config Analysis========================================*Product Links*Product links below. I make a small affiliate sales commission if you buy something!CCNA Library (Two Book Set):📚 https://ccna.link/nu-cp-lib-ed2All CCNA products at Cisco Press:🖨️ https://ccna.link/nu-cp-allccnaAll Wendell's products at Cisco Press:🧔🏼♂️ https://ccna.link/nu-cp-allwoCiscopress.com/NewCerts Page (News, Announcements):📰 https://ccna.link/nu-cp-newcerts=========================================
STP PortFast: Pros (Fast) and Cons (Dangerous) / (Vol 1 Ch 10 Sec 2a) Wendell Odoms Network Upskill 2025-09-03 | In this video, we explore the nuances of STP PortFast, its benefits, risks, and the essential companion it needs to operate safely. While PortFast can significantly improve network performance by allowing ports to transition to the forwarding state faster, it also poses potential dangers if misconfigured. Join us as we dissect the good, the bad, and the ugly aspects of STP PortFast. We’ll cover real-world scenarios where PortFast shines and instances where it can lead to network loops and instability. Plus, we’ll share expert tips on best practices and alternative solutions to mitigate risks while harnessing PortFast's advantages.Don’t miss out on this essential guide to optimizing your network while keeping it secure!🔔 Subscribe for more insights and tutorials on networking technology!*Chapters* 00:00 Intro 01:48 PortFast Concepts08:00 On Access Ports w/ Interface Config10:36 On Access Ports w/ Global Config13:13 On Trunk Ports14:43 PortFast Loop Danger18:53 CCNA Study Group* Review Video for This Video’s Content*📽️ PortFast Interview Review: youtu.be/loDYI_AYALQ* STP Optimizations Videos*📽️ PortFast (This Video): youtu.be/fZUO74wW9Eo📽️ BPDU Guard: youtu.be/3B0P70PfecA📽️ BPDU Filter: youtu.be/FX6F8EIXVmM📽️ Root Guard: youtu.be/2UbjKi3YlGU📽️ Loop Guard: youtu.be/nMsfd5Fc7Gc========================================*Product Links*Product links below. I make a small affiliate sales commission if you buy something!CCNA Library (Two Book Set):📚 https://ccna.link/nu-cp-lib-ed2All CCNA products at Cisco Press:🖨️ https://ccna.link/nu-cp-allccnaAll Wendell's products at Cisco Press:🧔🏼♂️ https://ccna.link/nu-cp-allwoCiscopress.com/NewCerts Page (News, Announcements):📰 https://ccna.link/nu-cp-newcerts=========================================
Improve Convergence Speed with RSTP over STP - Ad Hoc Lab / (Vol 1 Ch 9 Sec 3) Wendell Odoms Network Upskill 2025-08-28 | This lab lets you compare STP and RSTP convergence, using Cisco Packet Tracer, with a scenario that works well within what Packet Tracer supports. The comparison sets up a typical triangle with three switches, with the access switch settling with a Root Port in a Forwarding state and another port with no port role and a Blocking state. However, the access switch using RSTP makes that second port an Alternate port. When the Root Port fails, the Alternate Port moves to a Forwarding state immediately – a full 30 seconds quicker than the equivalent port with STP.Open the Packet Tracer file linked here and watch the first part of the video to get more details about what to do in this lab!*Chapters* 00:00 Intro 00:16 Lab Instructions03:31 Lab Demo: STP (Access3)07:21 Lab Demo: RSTP (Access4)*The Packet Tracer File for this Lab* 🔗 files.certskills.com/yt/vol1-ch09-03-adhoc.pkt*The Related Instructional Videos*STP Convergence📽️ youtu.be/V0S4H9r2dMQ RSTP Convergence📽️ youtu.be/2HBTShIhF2Y========================================*Product Links*Product links below. I make a small affiliate sales commission if you buy something!CCNA Library (Two Book Set):📚 https://ccna.link/nu-cp-lib-ed2All CCNA products at Cisco Press:🖨️ https://ccna.link/nu-cp-allccnaAll Wendell's products at Cisco Press:🧔🏼♂️ https://ccna.link/nu-cp-allwoCiscopress.com/NewCerts Page (News, Announcements):📰 https://ccna.link/nu-cp-newcerts=========================================
Why is Rapid STP Convergence So Rapid? (Answers Inside.) / (Vol 1 Ch 9 Sec 3) Wendell Odoms Network Upskill 2025-08-28 | RSTP uses some of the same mechanisms as its outdated ancestor, 802.1D STP, but promises much faster convergence. To appreciate that faster convergence, it helps to understand how STP does it and then compare STP to RSTP’s better and faster methods. We do just that here at the channel in a pair of videos. An earlier video handles the STP-specific part of the discussion, while this video discusses how RSTP converges much more quickly.A third video supplies an ad hoc lab so you can try it yourself in Cisco Packet Tracer. You can observe a convergence event, first from a switch using STP, and then from an equivalent switch using RSTP, seeing the RSTP switch bypassing listening and learning states to move straight to a forwarding state, speeding convergence.*Chapters* 00:00 Intro 01:04 RSTP Improvements Over STP08:41 RSTP Convergence with Remote Failures13:56 Demo: RSTP Alternate Port18:45 Demo: RSTP Remote Failure21:50 CCNA Study Group*Related Video – Convergence with STP*🎥 youtu.be/V0S4H9r2dMQ *Related Video – Ad Hoc Lab Comparing STP and RSTP*🎥 youtu.be/yx0xjHdm0GI*Background Information*🎥 Core Spanning Tree Concepts: youtu.be/xsgjY5DOxH8========================================*Product Links*Product links below. I make a small affiliate sales commission if you buy something!CCNA Library (Two Book Set):📚 https://ccna.link/nu-cp-lib-ed2All CCNA products at Cisco Press:🖨️ https://ccna.link/nu-cp-allccnaAll Wendell's products at Cisco Press:🧔🏼♂️ https://ccna.link/nu-cp-allwoCiscopress.com/NewCerts Page (News, Announcements):📰 https://ccna.link/nu-cp-newcerts=========================================
Why is Spanning Tree Convergence So Slow? (Answers Inside.) / (Vol 1 Ch 9 Sec 2) Wendell Odoms Network Upskill 2025-08-27 | RSTP uses some of the same mechanisms as its outdated ancestor, 802.1D STP, but promises much faster convergence. However, to appreciate that faster convergence, it helps to understand how STP does it and compare RSTP’s better and faster methods. We do just that here at the channel in a pair of videos. This video handles the STP-specific part of the discussion, while the related video discusses how RSTP improves, so it converges much more quickly.A third video supplies an ad hoc lab so that you can try it yourself on Cisco Packet Tracer. You can observe a convergence event, first, from a switch using STP, and then from an equivalent switch that uses RSTP, seeing the RSTP switch bypassing listening and learning states to move straight to a forwarding state, speeding convergence.*Chapters* 00:00 Intro 02:00 Convergence with Local Failure09:21 Demo of Convergence with a Local Failure (Observed)14:06 Same Demo, with IOS Debugs17:35 Convergence with Remote Failures22:59 Demo of Convergence with Remote Failures26:33 CCNA Study Group*Related Video – Convergence with RSTP*🎥 youtu.be/2HBTShIhF2Y *Related Video – Ad Hoc Lab Comparing STP and RSTP*🎥 youtu.be/yx0xjHdm0GI*Background Information*🎥 Core Spanning Tree Concepts: youtu.be/xsgjY5DOxH8========================================*Product Links*Product links below. I make a small affiliate sales commission if you buy something!CCNA Library (Two Book Set):📚 https://ccna.link/nu-cp-lib-ed2All CCNA products at Cisco Press:🖨️ https://ccna.link/nu-cp-allccnaAll Wendell's products at Cisco Press:🧔🏼♂️ https://ccna.link/nu-cp-allwoCiscopress.com/NewCerts Page (News, Announcements):📰 https://ccna.link/nu-cp-newcerts=========================================
Mind Map: From VLAN to Topic Mastery! / (Vol 1 Ch 8 Sec 3) Wendell Odoms Network Upskill 2025-08-14 | Today’s topic: VLAN Concepts and ConfigurationToday’s seed term: VLANWant to learn more about how to create a Terminology Mind Map? Watch this video that breaks down the steps:youtu.be/kuMbWiJHtxY?si=mnNVMzXO-Hv4dV4z*Chapters*00:00 Context00:21 Steps 1&2 Instructions01:52 Step 3: Our Term List03:20 Walkthrough: Terms from the Chapter08:44 Walkthrough: Expanded Term List
Ad Hoc Lab: Troubleshoot VLAN and Trunk Issues / (Vol 1 Ch 8 Sec 3) Wendell Odoms Network Upskill 2025-08-13 | This VLAN lab follows the same premise as lab questions on the actual CCNA exam. To practice troubleshooting VLAN and VLAN trunk issues with Cisco Packet Tracer, I’ll give you a .pkt file and a campus LAN design. I created a working LAN – but then I broke the configuration in several ways. Your job: Figure out how the broken parts of the configuration fix them. The video describes the details! The .pkt file is linked for download in the description.*Chapters* 00:00 Intro 00:22 Lab Instructions01:23 Lab Demo: Fix the Trunks03:02 Lab Demo: Fix Trunk Allowed Lists04:00 Lab Demo: Add Back a VLAN*The Related Instructional Video – “VLAN Troubleshooting”* 📽️ youtu.be/QqQlnwLpdNQ *The Packet Tracer File for this Lab* 🔗 files.certskills.com/yt/vol1-ch08-03-adhoc.pkt
How Switches Clean Up MAC Tables / (Vol 1 Ch 5 Sec 2B) Wendell Odoms Network Upskill 2025-08-11 | The MAC table on a LAN switch has a maximum size. That size varies from switch to switch and can even be configured in many cases. The key point is that a switch can fill its MAC table, so it needs logic to deal with that possibility. Should a switch attempt to clean up and remove MAC table entries? With what rules?This video describes the inherent processes a switch uses to manage the MAC table, removing some MAC table entries based on timers, some in reaction to the table being full, and others based on your CLI command.*Chapters* 00:00 Intro 01:43 Aging Out Unused MAC Table Entries04:29 Reacting to MAC Table Full Conditions08:32 Clearing MAC Table Entries Manually10:50 CCNA Study Group*The Related Concept Video*LAN Switching Fundamentals in Depthyoutu.be/Wu_vHj9PnxQ========================================*Product Links*Product links below. I make a small affiliate sales commission if you buy something!CCNA Library (Two Book Set):📚 https://ccna.link/nu-cp-lib-ed2All CCNA products at Cisco Press:🖨️ https://ccna.link/nu-cp-allccnaAll Wendell's products at Cisco Press:🧔🏼♂️ https://ccna.link/nu-cp-allwoCiscopress.com/NewCerts Page (News, Announcements):📰 https://ccna.link/nu-cp-newcerts=========================================Note: For those who pay close attention, I updated this video compared to its original version. I did that to fix an error in the content. The aging timer is based on when a switch relearns the MAC table entries. The earlier video mistakenly showed the timer based on when the entries were used to forward frames. FYI.
Compare VTP Differences (Server Vs. Transparent) in Lab! / (Vol 1 Ch 8 Sec 2d) Wendell Odoms Network Upskill 2025-08-07 | VLAN Trunking Protocol – VTP – is a minor nuisance when first learning about VLANs. However, it can be a dangerous feature to experiment with, so it helps to build some skills. Sure, you could just disable it on all switches and avoid it – and you likely will for CCNA studies. But it doesn’t hurt to experiment and learn how it works. This lab, in one Packet Tracer file, displays two identical LAN topologies. The top topology uses VTP, while the bottom avoids it. The lab asks you to try some VLAN configuration, and then to configure until all four switches in each topology have configuration for four VLANs. Along the way, you should experience most of the differences of what happens in switches when using and not using VTP.*Chapters* 00:00 Intro 00:22 General Lab Instructions01:23 Tests for VTP Server & Client03:02 Tests for VTP Transparent04:00 Miscellaneous Tests05:15 Demo: Testing VTP Server & Client10:45 Demo: Testing VTP Transparent15:27 Demo: Miscellaneous Tests*The Related Instructional Video – “VLAN Trunking Protocol”* 📽️ youtu.be/eXwtVm3DjDY *The Packet Tracer File for this Lab* 🔗 files.certskills.com/yt/vol1-ch08-02d-adhoc.pkt========================================*Product Links*Product links below. I make a small affiliate sales commission if you buy something!CCNA Library (Two Book Set):📚 https://ccna.link/nu-cp-lib-ed2All CCNA products at Cisco Press:🖨️ https://ccna.link/nu-cp-allccnaAll Wendell's products at Cisco Press:🧔🏼♂️ https://ccna.link/nu-cp-allwoCiscopress.com/NewCerts Page (News, Announcements):📰 https://ccna.link/nu-cp-newcerts=========================================
Understand Just Enough VTP to Get Through CCNA / (Vol 1 Ch 8 Sec 2d) Wendell Odoms Network Upskill 2025-08-07 | Way back, Cisco included VTP (VLAN Trunking Protocol) in CCNA. Eventually, they removed it from CCNA, probably because most companies didn’t use it. Unfortunately, it’s a feature that, for a long time, you actually couldn’t totally disable it. Also, it’s still on by default, so it impacts what you see in lab if you don’t know about it. So, it’s a good idea to know something about it, so at least you don’t get too confused while labbing.So, for today’s video, it’s all about VTP, but not to become great at VTP, but to learn just enough to have a good lab experience and to prevent VTP from getting in the way.*Chapters* 00:00 Intro 01:32 VTP Purpose w/ Servers, Clients06:30 Dangers of VTP Servers, Clients11:07 VTP Transparent, Off14:24 VLAN Config Storage Differences16:43 CCNA Study Group*Ad Hoc Lab (Video Lab, No Blog Page)*The lab is self-contained in the video: All instructions, with a link to the packet tracer file.🧑🏻🔬 📽️ youtu.be/bWyBEoJmKXk (Lab Video)========================================*Product Links*Product links below. I make a small affiliate sales commission if you buy something!CCNA Library (Two Book Set):📚 https://ccna.link/nu-cp-lib-ed2All CCNA products at Cisco Press:🖨️ https://ccna.link/nu-cp-allccnaAll Wendell's products at Cisco Press:🧔🏼♂️ https://ccna.link/nu-cp-allwoCiscopress.com/NewCerts Page (News, Announcements):📰 https://ccna.link/nu-cp-newcerts=========================================
LAN Switch Voice Ports Sort of Look Like Trunks - But Are They? / (Vol 1 Ch 8 Sec 2c) Wendell Odoms Network Upskill 2025-08-06 | A voice port on a switch – that is, a switch configured to support IP-based phones connected to the port – is a little weird compared to ports connected to data devices like PCs. The differences derive from one fundamental design principle: On a single link, an IP phone and computer connect, but we want them to be in different VLANs. So, the switch uses trunking features. But it doesn’t need all the features of a complete trunk. So, we configure, it works and then get confused by the output of show commands, which reveal the split-personality nature of this feature.This video works through the basics, including the configuration steps. It then dives into the differences you should expect to see in the related show commands, so you’re ready for the weird feedback about what’s happening on these ports.*Chapters* 00:00 Intro 01:13 Data + Voice Port Config04:56 Data + Voice Port Verification09:38 CCNA Study Group*Do This Lab Related to This Video!*🧑🏻🔬 certskills.com/clab113Note that there are no intro/review videos for this lab as of yet, but it’s still a useful lab!*Do This Lab to Review Access Port Config!*🧑🏻🔬 Basic VLANs: certskills.com/clab506 📽️ youtu.be/O3mCWfLqCEI (Intro Video)📽️ youtu.be/wKl0VSa6aZI (Review Video)========================================*Product Links*Product links below. I make a small affiliate sales commission if you buy something!CCNA Library (Two Book Set):📚 https://ccna.link/nu-cp-lib-ed2All CCNA products at Cisco Press:🖨️ https://ccna.link/nu-cp-allccnaAll Wendell's products at Cisco Press:🧔🏼♂️ https://ccna.link/nu-cp-allwoCiscopress.com/NewCerts Page (News, Announcements):📰 https://ccna.link/nu-cp-newcerts=========================================
Your choice: VLAN Trunks as Static or Dynamic? / (Vol 1 Ch 8 Sec 2B) Wendell Odoms Network Upskill 2025-07-31 | VLAN trunks come in several flavors. If there were only one, with no options, this video would have been short. Instead, it works through the several options, how they overlap, and the optional intertwined features, all with the goal of helping you have a clear view of how to configure VLAN trunking and verify its operation once configured.The flow begins with the simple case of static trunking. You’ll see how to configure it, with the surprising depth of some of the related show commands. Then, we’ll look at the dynamic options, where the switch negotiates whether to operate as trunks or not, revealing the need for some of the depth in those show commands. The video ends with two tangential topics: configuring the native VLAN and disabling DTP.*Chapters* 00:00 Intro 01:57 Context First, Before Config03:44 Configuring Static Trunking07:25 Verifying Static Trunking09:14 The Three Trunk VLAN Lists: Simple Version14:46 The Three Trunk VLAN Lists: Detailed Version20:00 Dynamic Trunking23:17 Examples of Dynamic Trunking26:04 Verifying Dynamic Trunking27:36 Native VLANs30:03 Disabling DTP31:12 CCNA Study Group*Related Config Lab*🧑🏻🔬 Trunking Puzzle 1: certskills.com/clab115 👩🏼💻 youtu.be/ZwkVZMSA1nY (Intro Video)👩🏼💻 youtu.be/F46LEKexMVY (Review Video)========================================*Product Links*Product links below. I make a small affiliate sales commission if you buy something!CCNA Library (Two Book Set):📚 https://ccna.link/nu-cp-lib-ed2All CCNA products at Cisco Press:🖨️ https://ccna.link/nu-cp-allccnaAll Wendell's products at Cisco Press:🧔🏼♂️ https://ccna.link/nu-cp-allwoCiscopress.com/NewCerts Page (News, Announcements):📰 https://ccna.link/nu-cp-newcerts=========================================
Simple and Effective VLAN and Access Port Config / (Vol 1 Ch 8 Sec 2A) Wendell Odoms Network Upskill 2025-07-30 | Virtual LANs and VLAN configuration are some of the most popular CCNA topics. The previous video explains the idea of VLANs, access ports (which support one VLAN), and trunk ports (which support traffic from many VLANs). In this video, we examine the configuration and verification of the first steps of VLAN configuration: Configuring the VLAN itself and configuring access ports with their specific access VLAN.The video begins with two topics that set the story before you configure much of anything. IT begins by reviewing some key topics from the previous video and then gives you just enough info about VTP to be comfortable ignoring it for this video! Then we look at a switch in the state with all default settings, as if it just arrived from the Cisco factory, and the impact of the VLAN settings on such a switch.The final three sections show the typical configuration for access ports. It first shows how to configure the VLANs, then how to verify the VLAN configuration, and then how to configure access ports to be access ports, along with their access VLAN number. The video wraps with a detailed look at some of the show commands, which interestingly lets you approach the data from the VLAN perspective as well as from the interface perspective.*Chapters* 00:00 Intro 01:43 Setting the Context05:14 VLAN Config from the Factory08:52 Configuring VLANs11:00 Configuring Static Access Ports14:23 Verifying Static Access Ports18:23 CCNA Study Group*Related Config Lab*🧑🏻🔬 Basic VLANs: certskills.com/clab506 👩🏼💻 youtu.be/O3mCWfLqCEI (Intro Video)👩🏼💻 youtu.be/wKl0VSa6aZI (Review Video)========================================*Product Links*Product links below. I make a small affiliate sales commission if you buy something!CCNA Library (Two Book Set):📚 https://ccna.link/nu-cp-lib-ed2All CCNA products at Cisco Press:🖨️ https://ccna.link/nu-cp-allccnaAll Wendell's products at Cisco Press:🧔🏼♂️ https://ccna.link/nu-cp-allwoCiscopress.com/NewCerts Page (News, Announcements):📰 https://ccna.link/nu-cp-newcerts=========================================
Be Great at CCNA (Part) Review with the CCNA Cert Guide / (Vol 1 Part 2) Wendell Odoms Network Upskill 2025-07-23 | The Part Review process, built into the official CCNA books from Cisco Press, helps you internalize and master the significant amount of information covered in the CCNA blueprint. The Chapter Review tasks stay focused on the purposefully-short chapters, and the final review asks you to review everything. But the Part Review asks you to review about 100 pages of book material at a time, to interrupt your brain’s natural processes of forgetting what you already learned, so that you remember more of the material long-term.The #1 tool in the Part Review toolkit is the Part Review question set that comes with the CCNA Official Cert Guide books. In this video, I’ll discuss the process, why those questions are so important, how to get the most out of them, and how to access them.*Chapters* 00:00 Intro 00:42 When to Review During You CCNA Journey05:08 How to Access CCNA Part Review Questions11:06 Demo: CCNA Part Review Questions*The Ultimate Guide to CCNA OCG Practice Exams*📽️ youtu.be/CU9IWraEROU*Want HUGE Numbers of CCNA Practice Questions? Get the CCNA Premium Edition*📽️ youtu.be/0MhD7AW4U8o========================================*Product Links*Product links below. I make a small affiliate sales commission if you buy something!CCNA Library (Two Book Set):📚 https://ccna.link/nu-cp-lib-ed2All CCNA products at Cisco Press:🖨️ https://ccna.link/nu-cp-allccnaAll Wendell's products at Cisco Press:🧔🏼♂️ https://ccna.link/nu-cp-allwoCiscopress.com/NewCerts Page (News, Announcements):📰 https://ccna.link/nu-cp-newcerts=========================================
Switch Links are Down!! Find and Fix / (Vol 1 Ch 7 Sec 3) Wendell Odoms Network Upskill 2025-07-16 | Some switch interface states immediately point to the root cause of a problem, while others bring to mind a long list of possible issues. This video guides you through an ad hoc CCNA lab exercise (a lab with all the instructions here in the video) where you figure out the interface states of broken interfaces. Then you work the problems, thinking of the possible root causes, looking further to find the issue on each link, and then fixing the problems. The video gives an analysis of the problems and a demo of how to fix each link’s problem. The lab uses Cisco Packet Tracer (CPT), with the file linked here:*The Cisco Packet Tracer File Used with This Lab* 🔗 files.certskills.com/yt/vol1-ch07-03b-adhoc.pkt*Chapters*00:00 Intro00:19 Lab Overview02:02 Lab Instructions05:40 Discuss Root Causes11:26 Demo: Link 1 (G1/0/11)17:29 Demo: Link 2 (G1/0/12)20:57 Demo: Link 3 (G1/0/13)24:59 Demo: Link 4 (G1/0/14)27:33 Demo: Link 5 (G1/0/15)30:22 Demo: Link 6 (G1/0/16)*The Related Instructional Video – “Why Did My Switch Port Fail?”* 📽️ youtu.be/i4YILk-aOZo*Kevin Nanns’ TDR (Cable Testing) Video* 📽️ linkedin.com/posts/kevinnanns_this-is-one-of-my-favorite-cisco-commands-activity-7235382466046283777-Vz7V*Leo Lahoo TDR (Cable Test) Detailed Post at CLN* 🔗 community.cisco.com/t5/networking-knowledge-base/how-to-use-time-domain-reflectometer-tdr/ta-p/3119327========================================*Product Links*Product links below. I make a small affiliate sales commission if you buy something!CCNA Library (Two Book Set):📚 https://ccna.link/nu-cp-lib-ed2All CCNA products at Cisco Press:🖨️ https://ccna.link/nu-cp-allccnaAll Wendell's products at Cisco Press:🧔🏼♂️ https://ccna.link/nu-cp-allwoCiscopress.com/NewCerts Page (News, Announcements):📰 https://ccna.link/nu-cp-newcerts=========================================
Why Did My Switch Port Fail? / (Vol 1 Ch 7 Sec 3) Wendell Odoms Network Upskill 2025-07-16 | The interface state must be up before a switch will use the interface. Simple enough. But with one single-word status code, and another status comprised of two separate terms – and with that data shown in different commands - just making sense of show commands can be a challenge. Then you need to understand what causes the various non-working states – all while learning on simulators that can’t always be trusted to act like authentic gear. So yes, it’s a challenge. In this video, we tackle those challenges, working through the available switch interface status codes, their root causes, and the errors that can still happen once the interface is in a working state.*Chapters* 00:00 Intro 01:24 Understanding Interface States04:12 Common Interface State Scenarios08:23 Less Common Interface State Scenarios12:05 Demo: Three Interface Failures and Their States20:21 Duplex Mismatch on a Working Interface 27:11 Other Errors on Working Interfaces29:33 CCNA Study Group Advice*Homework: Read About Interface Statistics Here!*👩🏼💻 cisco.com/c/en/us/support/docs/switches/catalyst-6500-series-switches/12027-53.html#toc-hId--939937013*Related Ad Hoc Lab*👩🏼💻 TBD*CCNA OCG Vol 1 Companion Website (For Pearson CCNA Sim Lite Download)*👩🏼💻 ciscopress.com/promotions/book-registration-ccna-200-301-official-cert-guide-142586#simulator========================================*Product Links*Product links below. I make a small affiliate sales commission if you buy something!CCNA Library (Two Book Set):📚 https://ccna.link/nu-cp-lib-ed2All CCNA products at Cisco Press:🖨️ https://ccna.link/nu-cp-allccnaAll Wendell's products at Cisco Press:🧔🏼♂️ https://ccna.link/nu-cp-allwoCiscopress.com/NewCerts Page (News, Announcements):📰 https://ccna.link/nu-cp-newcerts=========================================
Switch Interface Lab – Using the Pearson CCNA Sim / (Vol 1 Ch 7 Sec 3) Wendell Odoms Network Upskill 2025-07-16 | What is the CCNA 200-301 Sim Lite?Most ad hoc labs here at my YouTube channel are described in a single video, with you doing the lab using either Cisco Packet Tracer (CPT) or Cisco Modeling Labs (CML). Today’s ad hoc lab departs from that convention, using the Pearson CCNA 200-301 Sim Lite. If you own the best-selling CCNA books (a two-book set), then you can download both CCNA 200-301 Sim Lite products for free and use the labs included with those products. In this ad hoc lab, I assume you know how to install and navigate using the Sim Lite. If you don’t, look for the link later in this description for an earlier ad hoc lab that gives you those details! I just didn’t want to repeat the details here. For this video, I’ll show you how to find the lab I want you to do, to reinforce the most recent instructional video, and then I’ll get out of the way and let you do the lab!*Chapters*00:00 Intro00:30 Navigate to the Correct Configuration Scenario Lab03:00 Lab Demo*The Related Instructional Video – “Why Did My Switch Port Fail?”* 📽️ youtu.be/i4YILk-aOZo*The Ad Hoc Lab That Shows How to Install and Use “Pearson CCNA Sim Lite, Volume 1”* 📽️ youtu.be/rCClnvEXo7c*Direct Link to the CCNA OCG Companion Website, Volume 1* 🔗 ciscopress.com/promotions/book-registration-ccna-200-301-official-cert-guide-142586========================================*Product Links*Product links below. I make a small affiliate sales commission if you buy something!CCNA Library (Two Book Set):📚 https://ccna.link/nu-cp-lib-ed2All CCNA products at Cisco Press:🖨️ https://ccna.link/nu-cp-allccnaAll Wendell's products at Cisco Press:🧔🏼♂️ https://ccna.link/nu-cp-allwoCiscopress.com/NewCerts Page (News, Announcements):📰 https://ccna.link/nu-cp-newcerts=========================================
All About Using the Pearson CCNA Sim – with a Lab! / (Vol 1 Ch 7 Sec 2) Wendell Odoms Network Upskill 2025-07-10 | What is the CCNA 200-301 Sim Lite?On this channel, I include some lab videos related to Config Labs—found at my blog, Certskills.com—and some ad hoc labs, which are labs with instructions in a single video. This video, along with a few others, slightly deviates from that rule, instead pointing you to a tool that most regular users have access to: The Pearson CCNA 200-301 Sim Lite.If you own the best-selling CCNA books (a two-book set), then you can download both CCNA 200-301 Sim Lite products for free and use the labs included with those products. This video walks through the concepts and process, and demos how to do a lab related to the recent topics here at the channel. It’s up to you to decide how much to use the CCNA Sim Lite!*Chapters*00:00 Intro00:49 Discover Pearson CCNA Sim Lite05:10 Brief Product Tour07:01 Demo: Lab “Interface Settings I”12:26 Launch: Lab “Interface Settings II”*The Related Instructional Video – Watch This First!* 📽️ youtu.be/mpSNIOx36A8*Direct Link to the CCNA OCG Companion Website, Volume 1* 🔗 ciscopress.com/promotions/book-registration-ccna-200-301-official-cert-guide-142586========================================*Product Links*Product links below. I make a small affiliate sales commission if you buy something!CCNA Library (Two Book Set):📚 https://ccna.link/nu-cp-lib-ed2All CCNA products at Cisco Press:🖨️ https://ccna.link/nu-cp-allccnaAll Wendell's products at Cisco Press:🧔🏼♂️ https://ccna.link/nu-cp-allwoCiscopress.com/NewCerts Page (News, Announcements):📰 https://ccna.link/nu-cp-newcerts=========================================
Change Cisco Interface Config - And Change it Back / (Vol 1 Ch 7 Sec 2) Wendell Odoms Network Upskill 2025-07-10 | Shutdown, description, and interface range. Before that, there was speed, duplex, and mdix. All commands that you can configure on switch interfaces, all things you need to learn for CCNA.This video completes the introduction of switch interface subcommands by detailing those first three commands above. Then, the possibly more interesting part: How to revert those settings back to their original default settings, using both the “no” and “default” commands. Hope you enjoy the journey!*Chapters* 00:00 Intro 01:37 More Interface Config Commands04:50 Reverting Using “No”06:50 Reverting Using “Default”19:16 CCNA Study Group Advice*Related Review Videos*CML-Free Intro👩🏼💻 youtu.be/FM_Tyeq5XkY========================================*Product Links*Product links below. I make a small affiliate sales commission if you buy something!CCNA Library (Two Book Set):📚 https://ccna.link/nu-cp-lib-ed2All CCNA products at Cisco Press:🖨️ https://ccna.link/nu-cp-allccnaAll Wendell's products at Cisco Press:🧔🏼♂️ https://ccna.link/nu-cp-allwoCiscopress.com/NewCerts Page (News, Announcements):📰 https://ccna.link/nu-cp-newcerts=========================================
Auto-MDIX: Magic Fix for Wrong Cable Pinouts? / (Vol 1 Ch 7 Sec 1B) Wendell Odoms Network Upskill 2025-07-09 | Auto-MDIX may be one of the best features that removes a big headache for networkers. In the old days, you’d have to check UTP cabling to ensure you used patch cables with the right cable pinouts. With auto-MDIX, the switch port swaps the pins if you use the wrong cable. It’s on by default, and works great, so much so that people may not even know there was once a concern about cable pinouts.In fact, it’s so successful and pervasive that many LANs use straight-through pinouts for all cables and let auto-MDIX take care of swapping the pairs when a crossover is needed.This video gives you all the details – let’s jump in. *Chapters* 00:00 Intro 01:00 Review: Pinouts, Straight-Through and Crossover Cables06:09 Auto-MDIX Concepts07:50 Auto-MDIX Operations12:25 Auto-MDIX Demo16:50 CCNA Study Group========================================*Product Links*Product links below. I make a small affiliate sales commission if you buy something!CCNA Library (Two Book Set):📚 https://ccna.link/nu-cp-lib-ed2All CCNA products at Cisco Press:🖨️ https://ccna.link/nu-cp-allccnaAll Wendell's products at Cisco Press:🧔🏼♂️ https://ccna.link/nu-cp-allwoCiscopress.com/NewCerts Page (News, Announcements):📰 https://ccna.link/nu-cp-newcerts=========================================
Five Lab Steps to Power Up Your Cisco CLI Skills / (Vol 1 Ch 6 Sec 3) Wendell Odoms Network Upskill 2025-07-02 | Doing well on CCNA Lab questions requires practice with some specific skills to go along with all those specific commands. And this video details a lab exercise that can help you build skill beyond just more and more CLI commands.This lab asks you to review the most recent set of new CLI commands, for sure, to be complete. But it also shows some good practices you can use to internalize those commands, improve your long-term success in lab, get faster at using the CLI, and be more prepared for exam day. No more reading – jump into the lab video!*The Related Instructional Video – Watch This First!* 📽️ youtu.be/sylb5XIy7zY*The Lab Packet Tracer File:* 👩🏼💻 files.certskills.com/yt/ccnayt-1-p02-c06-03-adhoc.pkt*Chapters*00:00 Introduction01:05 Create Lab Power Up Template02:42 Add Lab Passwords to Template05:44 Habit: Add Template in Future Labs08:50 Demo: Copy/Paste Template into Config Mode11:28 Practice DO Commands (Config Mode)12:55 Practice Command Editing*Pro Tips for Cisco Packet Tracer*📽️ youtu.be/aCopHbLN8bk*Basic Password Config Review*“Protect Your CLI – Simply!”📽️ youtu.be/Cy62r0Af5UM========================================*Product Links*Product links below. I make a small affiliate sales commission if you buy something!CCNA Library (Two Book Set):📚 https://ccna.link/nu-cp-lib-ed2All CCNA products at Cisco Press:🖨️ https://ccna.link/nu-cp-allccnaAll Wendell's products at Cisco Press:🧔🏼♂️ https://ccna.link/nu-cp-allwoCiscopress.com/NewCerts Page (News, Announcements):📰 https://ccna.link/nu-cp-newcerts=========================================
Pro Tips for Better & Faster CCNA CLI Labbing / (Vol 1 Ch 6 Sec 3) Wendell Odoms Network Upskill 2025-07-02 | The lab questions on the CCNA exam often cause stress leading into the exam. Each lab question supplies a scenario, multiple running Cisco devices, with a broken or incomplete configuration. Your job? Fix or complete the configuration. The worries? Can you do the tasks, and can you do it quickly enough?This video’s topics help you power up your lab skills so you move faster, with more confidence, on lab questions. It also describes several commands that fall within my view of the scope of the CCNA blueprint. So, get exam-ready, build skills, and get ready to crush those lab questions!*Chapters* 00:00 Intro 01:14 The “Do” Command (Config Mode)03:15 The CLI History Buffer09:14 Editing Retrieved Commands14:39 Disable DNS Lookups19:13 Disable EXEC Timeouts21:25 Logging Synchronous22:48 Summary*Basic Password Config Review*“Protect Your CLI – Simply!”📽️ youtu.be/Cy62r0Af5UM*Related Ad Hoc Lab:*👩🏼💻 youtu.be/u6z1EltA_2I========================================*Product Links*Product links below. I make a small affiliate sales commission if you buy something!CCNA Library (Two Book Set):📚 https://ccna.link/nu-cp-lib-ed2All CCNA products at Cisco Press:🖨️ https://ccna.link/nu-cp-allccnaAll Wendell's products at Cisco Press:🧔🏼♂️ https://ccna.link/nu-cp-allwoCiscopress.com/NewCerts Page (News, Announcements):📰 https://ccna.link/nu-cp-newcerts=========================================
Switch IP Config: Config Lab Intro / (Vol 1 Ch 6 Sec 2) Wendell Odoms Network Upskill 2025-06-25 | Configuring the commands to enable remote access to a LAN switch can help you build skills – but it also helps to think about why you should choose to use the specific commands and parameters. This video guides you through the thought process. The lab also asks you to exercise your skills with basic password authentication by interpreting the supplied lab initial configuration to decide what passwords to use from the console and from a telnet and SSH into the switches in the lab.*Config Lab Blog Page:*CLAB208: Switch IP Config👩🏼💻 certskills.com/clab208 *The Related Instructional Video:* 📽️ youtu.be/uyewBWck_2Y *Chapters*00:00 Introduction01:18 Switch Initial Config03:19 Lab Instructions06:53 Do the Lab!*Lab Tools and Labs Playlist:* 📽️ youtube.com/playlist?list=PLhDAmDsTz9XfxFJCydqlcjvO4gT6xTPgj *Pro Tips for Cisco Packet Tracer*📽️ youtu.be/aCopHbLN8bk========================================*Product Links*Product links below. I make a small affiliate sales commission if you buy something!CCNA Library (Two Book Set):📚 https://ccna.link/nu-cp-lib-ed2All CCNA products at Cisco Press:🖨️ https://ccna.link/nu-cp-allccnaAll Wendell's products at Cisco Press:🧔🏼♂️ https://ccna.link/nu-cp-allwoCiscopress.com/NewCerts Page (News, Announcements):📰 https://ccna.link/nu-cp-newcerts=========================================
Making Sense of Switch VLAN Interfaces for IP Configuration / (Vol 1 Ch 6 Sec 2) Wendell Odoms Network Upskill 2025-06-25 | Remote access to a LAN switch, to manage the switch, requires the switch to support IP settings much like a host, with an IP address, subnet mask, and default gateway. But then you see the configuration, and it uses a command like “interface vlan 1”. What’s up with that? And, once you understand the config, it begs a few more questions about what a switch does to connect its internal IP logic to the external hosts that seek to manage the switch.This video starts by working through some of those big ideas. It then works through three configuration scenarios to help demonstrate how those big ideas impact the config. The last few topics then look at related IP config, specifically the default gateway and DNS resolver settings.It’s a bit of a whirlwind tour of the topic, so follow it with the Configuration Lab as suggested!!*Chapters* 00:00 Intro 01:37 VLANs and Subnets04:50 Single VLAN, Single Switch IP Config08:53 Single VLAN, Multiple Switch IP Config10:36 Multiple VLAN, Single Switch IP Config12:40 Using a Default Gateway15:39 Enabling Name Resolution19:16 CCNA Study Group Advice*Related Review Videos*Config Lab Intro:👩🏼💻 youtu.be/zmy8jiktNOwConfig Lab Review:👩🏼💻 youtu.be/7Xm9KNK2Z70========================================*Product Links*Product links below. I make a small affiliate sales commission if you buy something!CCNA Library (Two Book Set):📚 https://ccna.link/nu-cp-lib-ed2All CCNA products at Cisco Press:🖨️ https://ccna.link/nu-cp-allccnaAll Wendell's products at Cisco Press:🧔🏼♂️ https://ccna.link/nu-cp-allwoCiscopress.com/NewCerts Page (News, Announcements):📰 https://ccna.link/nu-cp-newcerts=========================================
Switch IP Config: Config Lab Review / (Vol 1 Ch 6 Sec 2) Wendell Odoms Network Upskill 2025-06-25 | You should do this lab to practice configuring remote access into LAN switches. Watch the intro video, do the lab, and then circle back to this video for a deeper review as needed. Simple enough!In this video, I’ll discuss the config, and demonstrate the config process plus verification using Telnet and SSH. I’ll also demonstrate the working and non-working cases with a default gateway configuration.*Config Lab Blog Page:*CLAB208: Switch IP Config👩🏼💻 certskills.com/clab208 *The Related Instructional Video:* 📽️ youtu.be/uyewBWck_2Y*Chapters*00:00 Introduction01:03 Lab Configuration Review04:08 Config Demo08:48 Verify Telnet and SSH12:22 Verify the Default Gateway Setting*Lab Tools and Labs Playlist:* 📽️ youtube.com/playlist?list=PLhDAmDsTz9XfxFJCydqlcjvO4gT6xTPgj *Pro Tips for Cisco Packet Tracer*📽️ youtu.be/aCopHbLN8bk========================================*Product Links*Product links below. I make a small affiliate sales commission if you buy something!CCNA Library (Two Book Set):📚 https://ccna.link/nu-cp-lib-ed2All CCNA products at Cisco Press:🖨️ https://ccna.link/nu-cp-allccnaAll Wendell's products at Cisco Press:🧔🏼♂️ https://ccna.link/nu-cp-allwoCiscopress.com/NewCerts Page (News, Announcements):📰 https://ccna.link/nu-cp-newcerts=========================================
Can You Solve this MAC Table Puzzle? (Lab) / (Vol1 Ch 5 Sec 2A) Wendell Odoms Network Upskill 2025-06-18 | You need to learn how work with LAN switch MAC tables, using the Cisco IOS CLI, using EXEC commands. I could have given you a lab and asked you to just look around with the *show mac address-table* command for a while. Instead, I made a puzzle. (I really like this lab!)For this lab, you start with a working LAN design with three switches and six PCs. I also ask you to follow some rules to make the puzzle more interesting. In fact, the first step is to DISABLE SOME CISCO PACKET TRACER FEATURES. So, watch the first part of the video before opening the Packet Tracer file to help avoid spoiling the lab.Your job? Learn all about the *show mac address-table* command. To do so, the lab asks you to determine the interface IDs (IIDs) of the switch interfaces shown in the figure, along with all the MAC addresses. Seems simple, but with the limited sets of commands the lab allows, you’ll need. To exercise your skills with the *show mac address-table* command – which is the main goal of the lab.*The Related Instructional Video:* 📽️ youtu.be/M7eyQsMcGTQ*The Lab Packet Tracer File:* 👩🏼💻 files.certskills.com/virl/vol1-ch05-02-ad-hoc.pkt*Chapters*00:00 Introduction00:15 Lab Instructions04:04 Avoiding Getting Too Much Info from Packet Tracer06:12 Analysis: Switch SW111:35 Analysis: Switch SW218:19 Analysis: Switch SW3========================================*Product Links*Product links below. I make a small affiliate sales commission if you buy something!CCNA Library (Two Book Set):📚 https://ccna.link/nu-cp-lib-ed2All CCNA products at Cisco Press:🖨️ https://ccna.link/nu-cp-allccnaAll Wendell's products at Cisco Press:🧔🏼♂️ https://ccna.link/nu-cp-allwoCiscopress.com/NewCerts Page (News, Announcements):📰 https://ccna.link/nu-cp-newcerts=========================================
Practical Tools to Verify Switch MAC Tables / (Vol 1 Ch 5 Sec 2A) Wendell Odoms Network Upskill 2025-06-18 | LAN switching logic uses a MAC table on the switch to direct the decisions: Whether to forward a frame, and out which port or ports. A more detailed discussion gets into hardware detail, application-specific integrated circuit (ASIC) logic and design, and much more detail. However, the basics revolve around the concepts of a MAC address table, matching incoming Ethernet frames’ MAC addresses to that MAC address table, and letting the matched table entry dictate where to forward the frame.The previous instructional video in the CCNA course discusses all the concepts. This video focuses solely on the practical job of verifying the contents of the MAC address table on a Cisco switch. Straightforward, with many examples, this video clarifies the classic cases in which students often get confused.*Chapters* 00:00 Intro 01:42 Demo Part 1: Single Switch Scenario03:21 Demo Part 1-A: The show mac address-table Command07:08 Demo Part 1-B: Interface Down/Up Impact on the MAC Table09:24 Demo Part 2: Two Switch Scenario11:14 Demo Part 2-A: MAC Table Entries for Neighboring Switches14:00 Demo Part 2-B: Full MAC Tables with All Six PCs18:00 Demo Part 2-C: Commands Useful with Large MAC Tables21:17 CCNA Study Group Advice*The Related Concept Video*LAN Switching Fundamentals in Depthyoutu.be/Wu_vHj9PnxQ*The Related Lab Video*youtu.be/mGQhQ8gaZh0========================================*Product Links*Product links below. I make a small affiliate sales commission if you buy something!CCNA Library (Two Book Set):📚 https://ccna.link/nu-cp-lib-ed2All CCNA products at Cisco Press:🖨️ https://ccna.link/nu-cp-allccnaAll Wendell's products at Cisco Press:🧔🏼♂️ https://ccna.link/nu-cp-allwoCiscopress.com/NewCerts Page (News, Announcements):📰 https://ccna.link/nu-cp-newcerts=========================================
Cisco Packet Tracer Pro Tips for CCNA Students Wendell Odoms Network Upskill 2025-06-11 | Cisco Packet Tracer – a network simulator – reigns as the most popular lab practice tool for CCNA. You can get all the standard help you need for it from the FREE class from Cisco – the class you need to register for to download the app. But would you like some pro tips from me on how to use it for your CCNA preparation? If so, you’ve come to the right place.In this video, I’ll talk you through a variety of topics with Cisco Packet Tracer, including some settings that should help you get more out of the tool. Other topics in this video may surprise you, like how CPT’s logic differs from Cisco device IOS. Hope you enjoy the tips! Let me know what was most helpful to you.*Chapters* 00:00 Intro 01:40 CPT Installation Tips02:40 Wendell’s Favorite CPT Settings08:40 File Save Vs. copy run start12:31 CPT Inaccurate? Save, Close, and Open!16:28 CPT is GREAT. But it is NOT IOS!19:48 Wendell’s Top CPT Oddities*Wendell’s Top CPT Oddities – Links to Related Labs*Incorrect use of “a-“ prefix in the output of “show interfaces status” on switches:🥼certskills.com/clab201-----Lack of support for the “trunk” keyword on the “show interfaces type/number trunk” switch command.🥼certskills.com/clab115-----CPT does not support the “shutdown” command in VLAN configuration mode on switches.🥼certskills.com/clab112-----The “show ip protocols” command does not list the OSPF-enabled interfaces if configuring OSPF with the “ip ospf” interface subcommand.🥼certskills.com/clab519-----CPT changes the router’s OSPF Router-ID in a different timing versus real routers when configuring the OSPF “router-id” OSPF subcommand.🥼certskills.com/clab313-----CPT does not support the “shutdown” command in OSPF configuration mode.🥼certskills.com/clab521-----CPT does not perform IPv6 address bit-flip logic correctly for EUI-64.🥼certskills.com/clab130========================================*Product Links*Product links below. I make a small affiliate sales commission if you buy something!CCNA Library (Two Book Set):📚 https://ccna.link/nu-cp-lib-ed2All CCNA products at Cisco Press:🖨️ https://ccna.link/nu-cp-allccnaAll Wendell's products at Cisco Press:🧔🏼♂️ https://ccna.link/nu-cp-allwoCiscopress.com/NewCerts Page (News, Announcements):📰 https://ccna.link/nu-cp-newcerts=========================================
Config Lab Review: Navigating Cisco IOS Config Modes / (Vol 1 Ch 4 Sec 2) Wendell Odoms Network Upskill 2025-06-04 | IOS CLI Config Mode allows networkers to configure a networking device with all the specifics of how to work. Sure, LAN switches should switch LAN frames, prevent looping frames with Spanning Tree, and use VLANs to segment the network. Routers should use IP addresses and masks on interfaces, learn routes using IP routing protocols, and route IP packets. However, to perform these tasks, the devices need to know the specific settings, and IOS CLI Config Mode provides us with a way to inform the network device of these settings, all using text commands at the CLI.Today’s lab exercise is part of the Config Lab series on my blog, but it uses a much different pattern than most of those labs. Most Config Labs provide a detailed scenario with a few goals, and you must determine the specific steps to take to achieve the goal. Instead, this lab spells out the specific steps to guide you through learning how the user interface (the CLI) works. I know from long experience that sometimes it just helps to see someone else do it – hence this video.*Config Lab Blog Page:*CLAB402: CLI Exploration 2👩🏼💻 certskills.com/clab402 *The Related Instructional Video:* 📽️ youtu.be/2R4YOZAusJY*Chapters*00:00 Introduction01:50 Navigating to Global Config Mode03:53 Using Global Config Mode06:09 Using Interface Config Mode09:32 Using Console Line Mode11:50 Using VLAN Config Mode13:58 Investigate the Config Files*📽️ Lab Tools and Labs Playlist:* youtube.com/playlist?list=PLhDAmDsTz9XfxFJCydqlcjvO4gT6xTPgj *Pro Tips for Cisco Packet Tracer*📽️youtu.be/aCopHbLN8bk========================================*Product Links*Product links below. I make a small affiliate sales commission if you buy something!CCNA Library (Two Book Set):📚 https://ccna.link/nu-cp-lib-ed2All CCNA products at Cisco Press:🖨️ https://ccna.link/nu-cp-allccnaAll Wendell's products at Cisco Press:🧔🏼♂️ https://ccna.link/nu-cp-allwoCiscopress.com/NewCerts Page (News, Announcements):📰 https://ccna.link/nu-cp-newcerts=========================================
Cisco Live: Summer Camp for Network Nerds! (for CCNAs) Wendell Odoms Network Upskill 2025-06-02 | Cisco Live – known as “Summer Camp for Networking Nerds” by many – is a wonderful Cisco customer conference with more fun for networking professionals than you could enjoy in a month, much less the 4-5 days of the event. But even with the 20,000 plus likely to be at the June 2025 event, only a small percentage of US Cisco networking pros will be able to attend. Which got me thinking…- Could I help folks enjoy CLUS from afar?- Could I make it especially useful for all of you: That is, folks in the middle of studying for CCNA.So that’s what I did. The week of June 9th, 2025, you can attend CLUS. You can get a lot out of the experience for free, from afar, and even if you’re studying for CCNA. In this video, I’ll explain three ways to learn related to the show, how to choose, and how to watch and do (yes, do) – so take a look.*Chapters* 00:00 Introduction: CCNAs, Go to Cisco Live Summer Camp!01:38 About Broadcast Sessions (Live Sessions)04:03 How to Find and Access Broadcast Sessions05:46 About Walk-In and Cisco U Labs08:30 How to Access Cisco U Labs09:52 About Cisco U Theatre Live Sessions11:44 How to Find and Access Cisco U Theatre Live Sessions14:45 Let’s Go to Camp!*Cisco Live US 2025 Broadcast Agenda and Viewing*ciscolive.com/global/attend/broadcast-agenda.html *Cisco Live US 2025 Session Catalog*ciscolive.com/global/learn/session-catalog.html#(Note: This link usually disappears after the show, held June 9-13, 2025 this year.)*Cisco U*u.cisco.com*Cisco Live US 2025 Cisco U Theatre (Live Sessions):*Watch on YouTube:youtube.com/@CiscoUtubeFind the agenda at the CLUS ’25 session catalog.*Cisco U Tutorials (Labs) – Wendell’s Top 10**Layer 2*https://u.cisco.com/tutorials/using-vlans-segment-different-user-groups-on-switch-3013https://u.cisco.com/tutorials/using-trunking-extend-vlans-across-multiple-switches-3014https://u.cisco.com/tutorials/build-redundancy-using-etherchannel-16183https://u.cisco.com/tutorials/basic-operations-rapid-pvst-spanning-tree-protocol-4723https://u.cisco.com/tutorials/enhance-spanning-tree-protocol-security-with-root-guard-5508*Layer 3*https://u.cisco.com/tutorials/implement-router-on-stick-3686https://u.cisco.com/tutorials/static-routing-demystified-16123https://u.cisco.com/tutorials/configure-ospf-ipv4-routing-26520https://u.cisco.com/tutorials/ospf-multiarea-enterprise-networks-15961https://u.cisco.com/tutorials/spotlight-2024-ospf-neighbor-troubleshooting-4680 ========================================*Product Links*Product links below. I make a small affiliate sales commission if you buy something!CCNA Library (Two Book Set):📚 https://ccna.link/nu-cp-lib-ed2All CCNA products at Cisco Press:🖨️ https://ccna.link/nu-cp-allccnaAll Wendell's products at Cisco Press:🧔🏼♂️ https://ccna.link/nu-cp-allwoCiscopress.com/NewCerts Page (News, Announcements):📰 https://ccna.link/nu-cp-newcerts=========================================
Config Lab Review: Navigating Cisco IOS CLI Modes / (Vol 1 Ch 4 Sec 1) Wendell Odoms Network Upskill 2025-05-28 | IOS CLI modes identify for you, the user, what kinds of commands IOS will accept. In the two EXEC modes, IOS accepts commands, executes them, finds facts, and returns output for us humans to read. One of those EXEC modes - User EXEC mode - allows commands with minimal risk, while Privileged EXEC mode requires additional privileges but also carries increased risks. Config Mode accepts a larger but distinct set of commands, known as configuration commands, which allow us to modify the settings used by the device.Today’s “Config Lab” isn’t really a configuration lab because you don't configure much. Instead, the lab provides a list of specific steps. You should do the lab and learn how to navigate around the CLI! However, I know from long experience that sometimes it just helps to see someone else do it – hence this video. In this video, you can watch me perform the lab, with commentary as I guide you through the steps.*Config Lab Blog Page:*CLAB401: CLI Exploration 1👩🏼💻 certskills.com/clab401 *The Related Instructional Video:* 📽️ youtu.be/HgcdjerdU48*Chapters*00:00 Introduction01:50 Navigating to User EXEC Mode03:35 Using User EXEC Mode07:28 Using Privileged EXEC Mode10:18 Using Global Config Mode*📽️ Lab Tools and Labs Playlist:* youtube.com/playlist?list=PLhDAmDsTz9XfxFJCydqlcjvO4gT6xTPgj*Pro Tips for Cisco Packet Tracer*📽️ youtu.be/aCopHbLN8bk========================================*Product Links*Product links below. I make a small affiliate sales commission if you buy something!CCNA Library (Two Book Set):📚 https://ccna.link/nu-cp-lib-ed2All CCNA products at Cisco Press:🖨️ https://ccna.link/nu-cp-allccnaAll Wendell's products at Cisco Press:🧔🏼♂️ https://ccna.link/nu-cp-allwoCiscopress.com/NewCerts Page (News, Announcements):📰 https://ccna.link/nu-cp-newcerts=========================================
Don’t Miss These Cisco Updates for 2025-26! Wendell Odoms Network Upskill 2025-05-27 | Cisco announced significant certification changes on May 27, 2025, but the changes don’t take effect for eight months. So, we have plenty of time to figure out what to do about them. Today’s video discusses the announced details and provides you with information on where to find more details.*Cisco discussion page for these updates* learningnetwork.cisco.com/s/question/0D5Kd0000BNdWQTKQ3/a-new-era-in-cisco-certifications-discussion-thread*Chapters* 00:00 Intro: Big Changes with Cisco Certifications01:40 Branding: Learn with Cisco02:38 Branding: CCNA, CCNP, CCIE05:34 DevNet Content Changes07:36 Collaboration Content Changes08:49 What Next?*Many Thanks for the Early Info From:*Cisco Designated VIP Program:http://cs.co/Cisco-Designated-VIP-ProgramCisco Insider Champions Programcisco.com/c/en/us/about/cisco-insider.html*Links for Further Discussion*DevNet/Automation Content Changeslearningnetwork.cisco.com/s/topic/0TO3i0000008jY5GAI/devnet-certifications-communityCollaboration Content Changeslearningnetwork.cisco.com/s/topic/0TO3i0000008jY9GAI/collaboration-certifications-communityCybersecurity Branding Changeslearningnetwork.cisco.com/s/topic/0TO3i0000008jY7GAI/cybersecurity-certifications-community
ARP, DNS, and Ping for CCNA / (Vol 1 Ch 3 Sec 3) Wendell Odoms Network Upskill 2025-05-22 | ARP and DNS play huge roles in TCP/IP – but they’re small topics in CCNA. So, they don’t even get an entire book chapter, let alone a major section, in my CCNA books. Here at YouTube, I’ve introduced these topics, plus the ping command, in a single video. Think of it as small topics that are very important!*Chapters* 00:00 Intro 01:48 ARP05:17 DNS07:12 Ping11:19 CCNA Study Group*Term Mind Map*Referenced in the Closing Section📽️ youtu.be/Nn_7jO0Fbng*More on Ping*📽️ youtu.be/zDyrHs69oDE📽️ youtu.be/_1UVVXzUImw========================================*Product Links*Product links below. I make a small affiliate sales commission if you buy something!CCNA Library (Two Book Set):📚 https://ccna.link/nu-cp-lib-ed2All CCNA products at Cisco Press:🖨️ https://ccna.link/nu-cp-allccnaAll Wendell's products at Cisco Press:🧔🏼♂️ https://ccna.link/nu-cp-allwoCiscopress.com/NewCerts Page (News, Announcements):📰 https://ccna.link/nu-cp-newcerts=========================================
Mind Map: From WAN & Routing to Topic Mastery! / (Vol 1 Ch 3 Sec 3) Wendell Odoms Network Upskill 2025-05-22 | Today’s topic: WAN and Routing FundamentalsToday’s seed term: WAN & IP RoutingWant to learn more about how to create a Terminology Mind Map? Watch this video that breaks down the steps:youtu.be/kuMbWiJHtxY?si=mnNVMzXO-Hv4dV4z*Chapters*00:00 Context00:15 Steps 1&2 Instructions01:34 Step 3: Our Term List02:16 Wendell’s Mind Map Walkthrough========================================*Product Links*Product links below. I make a small affiliate sales commission if you buy something!CCNA Library (Two Book Set):📚 https://ccna.link/nu-cp-lib-ed2All CCNA products at Cisco Press:🖨️ https://ccna.link/nu-cp-allccnaAll Wendell's products at Cisco Press:🧔🏼♂️ https://ccna.link/nu-cp-allwoCiscopress.com/NewCerts Page (News, Announcements):📰 https://ccna.link/nu-cp-newcerts=========================================
CCNA Interview Review: IP Routing on Hosts and Routers / (Vol 1 Ch 3 Sec 2) Wendell Odoms Network Upskill 2025-05-21 | IP Routing. How do routers think? Do they all think the same way, or are there differences – and if so, when and why? Do hosts (endpoints) have routing logic? More importantly, can you answer these questions?In this interview review, you’ll be given a straightforward network topology and asked to explain IP routing on one host and two routers. Ready? Let’s do it!*This Review Video is Associated with:*📽️ youtu.be/a_TdHxqMaGo*Chapters* 00:00 Introduction00:15 Interview Questions01:56 Host Forwarding Logic04:40 Intermediate Router Forwarding Logic06:48 Connected Router Forwarding Logic08:19 Interview Scorecard========================================*Product Links*Product links below. I make a small affiliate sales commission if you buy something!CCNA Library (Two Book Set):📚 https://ccna.link/nu-cp-lib-ed2All CCNA products at Cisco Press:🖨️ https://ccna.link/nu-cp-allccnaAll Wendell's products at Cisco Press:🧔🏼♂️ https://ccna.link/nu-cp-allwoCiscopress.com/NewCerts Page (News, Announcements):📰 https://ccna.link/nu-cp-newcerts=========================================
IP Routing: Host and Router Logic / (Vol 1 Ch 3 Sec 2) Wendell Odoms Network Upskill 2025-05-21 | IP Routing defines the logic for forwarding IP packets from the originating host to their final destinations. The logic sits just far enough above the physical transmission details, so it remains consistent regardless of the physical layer technologies used throughout the entire route. New physical and data link layer technologies may come and go, but IP routing has remained a fundamental component of how networks operate for over forty years. This video discusses the foundational concepts of how IP routing works. The logic runs from the source host to the first router (the source host’s default router), then to the next router, and so on, until the final router forwards the packet to the destination host. The logic differs between hosts and routers, with slight variations in logic between intermediate routers and the final router. This video touches on all those concepts, and more!*Chapters* 00:00 Intro 01:09 Subnetting Rules Aid IP Routing04:09 IP Routing Protocols Aid IP Routing07:56 IP Routing: Host Logic12:49 IP Routing: Router Logic13:48 CCNA Study Group Advice*Interview Review*Referenced in the Closing Section📽️ youtu.be/yLATJP6I7PU========================================*Product Links*Product links below. I make a small affiliate sales commission if you buy something!CCNA Library (Two Book Set):📚 https://ccna.link/nu-cp-lib-ed2All CCNA products at Cisco Press:🖨️ https://ccna.link/nu-cp-allccnaAll Wendell's products at Cisco Press:🧔🏼♂️ https://ccna.link/nu-cp-allwoCiscopress.com/NewCerts Page (News, Announcements):📰 https://ccna.link/nu-cp-newcerts=========================================
Ethernet Duplex: Use the Best, Prepare for the Worst / (Vol 1 Ch 2 Sec 4b) Wendell Odoms Network Upskill 2025-05-14 | Full-duplex rocks, half-duplex doesn’t, and modern networks can use full-duplex everywhere. So why bother talking about half-duplex? Humans make mistakes, and automatic processes might as well. So, to be well-prepared networkers, you need to understand both half-duplex and full-duplex.Note that this video focuses on the history and major concepts of comparing the two duplex options. Later in the CCNA video playlist, we turn our attention to the duplex issues that occur in modern networks, particularly the unfortunate case of a duplex mismatch.*Chapters* 00:00 Intro 01:05 The Need for Half-Duplex and CSMA/CD08:27 Modern LANs and Full-Duplex12:11 Duplex and the CCNA Exam14:37 CCNA Study Group Advice*Review*Create a term mind map – for the whole chapter’s worth of videos!! youtube.com/TBD========================================*Product Links*Product links below. I make a small affiliate sales commission if you buy something!CCNA Library (Two Book Set):📚 https://ccna.link/nu-cp-lib-ed2All CCNA products at Cisco Press:🖨️ https://ccna.link/nu-cp-allccnaAll Wendell's products at Cisco Press:🧔🏼♂️ https://ccna.link/nu-cp-allwoCiscopress.com/NewCerts Page (News, Announcements):📰 https://ccna.link/nu-cp-newcerts=========================================
Mind Map: From Ethernet LAN to Topic Mastery! / (Vol 1 Ch 2 Sec 3) Wendell Odoms Network Upskill 2025-05-14 | Today’s topic: Ethernet FundamentalsToday’s seed term: Ethernet LANWant to learn more about how to create a Terminology Mind Map? Watch this video that breaks down the steps:youtu.be/kuMbWiJHtxY?si=mnNVMzXO-Hv4dV4z*Chapters*00:00 Context00:15 Term Mind Maps Steps 1, 2, 302:21 Wendell’s Mind Map Walkthrough========================================*Product Links*Product links below. I make a small affiliate sales commission if you buy something!CCNA Library (Two Book Set):📚 https://ccna.link/nu-cp-lib-ed2All CCNA products at Cisco Press:🖨️ https://ccna.link/nu-cp-allccnaAll Wendell's products at Cisco Press:🧔🏼♂️ https://ccna.link/nu-cp-allwoCiscopress.com/NewCerts Page (News, Announcements):📰 https://ccna.link/nu-cp-newcerts=========================================
The Hidden Magic of Ethernet Frame Processing! / (Vol 1 Ch 2 Sec 4a) Wendell Odoms Network Upskill 2025-05-07 | Understanding Ethernet frames may be one of the most important skills for any aspiring networker. This video covers the basics!An Ethernet frame has three major parts: The header, the trailer, and the data. When a sending host first creates an Ethernet frame, the data comes from the next-higher layer (for instance, IP), with that higher layer asking Ethernet to deliver the data to some destination in the LAN. The Ethernet standard defines the fields in the header and trailer, their purpose, and data formats.The video begins by discussing the most popular fields in the Ethernet header: The destination and source address fields. The second half of the video takes a comprehensive look at the Ethernet frame, discussing the remainder of the fields.*Chapters* 00:00 Intro 00:59 Ethernet MAC Addresses07:03 Ethernet Frames and Frame Processing12:09 CCNA Study Group Advice*Review*Practice with an interview review!📽️ youtu.be/Nn_7jO0Fbng========================================*Product Links*Product links below. I make a small affiliate sales commission if you buy something!CCNA Library (Two Book Set):📚 https://ccna.link/nu-cp-lib-ed2All CCNA products at Cisco Press:🖨️ https://ccna.link/nu-cp-allccnaAll Wendell's products at Cisco Press:🧔🏼♂️ https://ccna.link/nu-cp-allwoCiscopress.com/NewCerts Page (News, Announcements):📰 https://ccna.link/nu-cp-newcerts=========================================
CCNA Interview Review: Ethernet Frames and Fields / (Vol 1 ch 2 Sec 4a) Wendell Odoms Network Upskill 2025-05-07 | An Ethernet-connected device, when it generates data to send, uses an Ethernet frame to encapsulate the data before transmission. Ready to talk through the process? You should have those skills for the CCNA exam, as well as to be ready for any networking technical interview. This video presents an exercise in interview form. Talk to the mirror, your loved ones, write it for yourself or to post online. Regardless, discuss in some way the answer to the questions posed in this video – all as a way to review, study, and hone your skills.*This Review Video is Associated with:*📽️ youtu.be/pNAg2i5aU78*Chapters* 00:00 Introduction00:16 Initial Interview Question01:53 First Round: Fields but Not Values04:10 Second Round: Assigning Values to Fields05:50 Aside: Discussing the MAC Addresses========================================*Product Links*Product links below. I make a small affiliate sales commission if you buy something!CCNA Library (Two Book Set):📚 https://ccna.link/nu-cp-lib-ed2All CCNA products at Cisco Press:🖨️ https://ccna.link/nu-cp-allccnaAll Wendell's products at Cisco Press:🧔🏼♂️ https://ccna.link/nu-cp-allwoCiscopress.com/NewCerts Page (News, Announcements):📰 https://ccna.link/nu-cp-newcerts=========================================
Want a Free CCNA Exam Retake? Here’s How! Wendell Odoms Network Upskill 2025-05-06 | The CCNA exam requires a lot of study, and it’s usually the first Cisco exam for most people. It’s natural to be a bit unsure of yourself going into that first time attempting CCNA.There’s nothing wrong with a failing grade. But wouldn’t it be nice to go into that first exam attempt knowing that your second attempt – if needed – was FREE!?!?!?!The Pearson Vue Safety Net offer, May-June 2025, offers just that. Details in this video!I'll also give some FREE advice :-) on how to make the most out of that first CCNA attempt!*Chapters* 00:00 Intro 00:16 Vue’s Free Deal: Exam Safety Net04:48 Wendell’s Advice: Take Notes After Attempt #1*Links*Pearson Vue Exam Safety Net🔗 www.ccna.link/retake🔗 pearsonvue.com/us/en/test-takers/free-retake.html(Appears to be a one-time thing. First exam attempt must be completed by June 12, 2025.) ========================================*Product Links*Product links below. I make a small affiliate sales commission if you buy something!CCNA Library (Two Book Set):📚 https://ccna.link/nu-cp-lib-ed2All CCNA products at Cisco Press:🖨️ https://ccna.link/nu-cp-allccnaAll Wendell's products at Cisco Press:🧔🏼♂️ https://ccna.link/nu-cp-allwoCiscopress.com/NewCerts Page (News, Announcements):📰 https://ccna.link/nu-cp-newcerts=========================================
Ethernet Fiber Cables Simplified For All / (Vol 1 Ch 2 Sec 3) Wendell Odoms Network Upskill 2025-04-30 | Campus LANs use fewer fiber Ethernet links versus copper UTP links. This video begins by setting the context of where network designs benefit from using fiber and the core design tradeoffs. With the context in mind, the rest of the video shows the basics. It next examines the fiber-optic cables and connectors, and then concludes by comparing a few of the more popular fiber Ethernet standards used in LANs today.*Chapters* 00:00 Intro 01:48 Fiber Ethernet LAN Links04:00 Fiber Ethernet Cabling Basics05:17 Fiber Ethernet LAN at 1 and 10 Gbps13:48 CCNA Study Group Advice*Related Video*“Ethernet Layer 1 Basics with Copper Cables”📽️ youtu.be/P22v4eHhON4*Terminology Mind Map*Make a mind map for terms related to the Ethernet physical layer, both copper and fiber cabling:📽️ youtu.be/7kpqSHIm-uE========================================*Product Links*Product links below. I make a small affiliate sales commission if you buy something!CCNA Library (Two Book Set):📚 https://ccna.link/nu-cp-lib-ed2All CCNA products at Cisco Press:🖨️ https://ccna.link/nu-cp-allccnaAll Wendell's products at Cisco Press:🧔🏼♂️ https://ccna.link/nu-cp-allwoCiscopress.com/NewCerts Page (News, Announcements):📰 https://ccna.link/nu-cp-newcerts=========================================
Ethernet LAN UTP Cables Simplified For All / (Vol 1 Ch 2 Sec 2) Wendell Odoms Network Upskill 2025-04-30 | Ethernet, specifically Ethernet standards that use twisted pairs of wires, transmits data using electricity. Ever wonder how that works? In this introductory video, we discuss just that for three Ethernet physical layer specifications that were at various times the most popular parts of the Ethernet standard: 10BASE-T, 100BASE-T, and 1000BASE-T.Beyond discussing how the standards define how devices transmit data physically, the video also looks at the wiring inside the cable on the ends of the cable inside the connectors. The standards require specific pins inside the connectors, and the pinouts matter to the correct operation of the physical layer.*Chapters* 00:00 Intro 01:09 10/100/1000 Ethernet Basics08:46 Ethernet Cable Pinouts17:47 CCNA Study Group Advice*Related Video*“Ethernet Layer 1 Basics with Fiber Cables”📽️ youtu.be/XJzgxA-9BdE*Terminology Mind Map*Make a mind map for terms related to the Ethernet physical layer, both copper and fiber cabling:📽️ youtu.be/7kpqSHIm-uE========================================*Product Links*Product links below. I make a small affiliate sales commission if you buy something!CCNA Library (Two Book Set):📚 https://ccna.link/nu-cp-lib-ed2All CCNA products at Cisco Press:🖨️ https://ccna.link/nu-cp-allccnaAll Wendell's products at Cisco Press:🧔🏼♂️ https://ccna.link/nu-cp-allwoCiscopress.com/NewCerts Page (News, Announcements):📰 https://ccna.link/nu-cp-newcerts=========================================
Create a Mind Map of Terms. 1st Term: Ethernet Physical Link / (Vol 1 Ch 2 Sec 2&3) Wendell Odoms Network Upskill 2025-04-30 | Today’s topic: Ethernet Physical Layer (Copper and Fiber)Today’s seed term: Ethernet Physical LayerWant to learn more about how to create a Terminology Mind Map? Watch this video that breaks down the steps:youtu.be/kuMbWiJHtxY?si=mnNVMzXO-Hv4dV4z*Chapters*00:00 Context00:14 Term Mind Maps Steps 1, 2, 302:03 Wendell’s Mind Map Walkthrough========================================*Product Links*Product links below. I make a small affiliate sales commission if you buy something!CCNA Library (Two Book Set):📚 https://ccna.link/nu-cp-lib-ed2All CCNA products at Cisco Press:🖨️ https://ccna.link/nu-cp-allccnaAll Wendell's products at Cisco Press:🧔🏼♂️ https://ccna.link/nu-cp-allwoCiscopress.com/NewCerts Page (News, Announcements):📰 https://ccna.link/nu-cp-newcerts=========================================
