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Welcome to Jeremy’s IT Lab. This is\xa0\n
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If you like these videos, please\xa0\n
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Also, please like and leave a comment, and share\xa0\n
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videos. Thanks for your help. Also, remember\xa0\n
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get all of the lab files for this course, so\xa0\n
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If you want more labs like these, I highly\xa0\n
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click the link in the video\xa0\n
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It’s a network simulator like packet tracer, but\xa0\n
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guided labs to not only help you get hands-on\xa0\n
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but also deepen your understanding of the exam\xa0\n
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certifications, so I feel confident\xa0\n
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If you want to get your own copy of NetSim,\xa0\n
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In this lab we will use CDP to map out a network\xa0\n
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network to LLDP. As you can see, there are\xa0\n
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in this network. In this lab you will use CDP show\xa0\n
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network. For the purpose of this video, I have\xa0\n
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go more smoothly. But in the lab file I’m sharing\xa0\n
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There are 4 steps, but they can be divided\xa0\n
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CDP configurations and using CDP to map out the\xa0\n
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CDP and enable LLDP instead. These network\xa0\n
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but perhaps we are switching over to LLDP to\xa0\n
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I was planning to have you configure the\xa0\n
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but actually those configurations\xa0\n
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Still, remember those commands, CDP TIMER,\xa0\n
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and LLDP REINIT. Okay, now I’ll do\xa0\n
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I’ll start on PC1. Although this PC can’t use CDP,\xa0\xa0
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we need to add its IP address to this network\xa0\n
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Then I’ll use the command IPCONFIG, and now\xa0\n
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address is 192.168.1.1, and the subnet mask is\xa0\n
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Also, the default gateway is 192.168.1.254,\xa0\n
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those labels. Network address of 192.168.1.0/24.\xa0\n
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Now I’ll move to SW1. So, we need to add\xa0\n
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the interface connected to PC1 for step 2. First\xa0\n
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check the CDP neighbor table. SHOW CDP NEIGHBORS.\xa0\n
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is connected to R1’s Gig0/2 interface. Let me add\xa0\n
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Now, how about the interface connected to\xa0\n
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different method. If there were many PCs connected\xa0\n
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and then look at SW1’s MAC address table to see\xa0\n
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However, I’m keeping it simple in this lab, only\xa0\n
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let’s just check which interface of SW1 is in a\xa0\n
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is connected to R1, and the only other interface\xa0\n
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so that must be connected to PC1. I’ll add that\xa0\n
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done with SW1 yet, let’s return to the CLI. Next\xa0\n
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CONF T. INTERFACE F0/10. First let’s check\xa0\n
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So, CDP is enabled on the interface.\xa0\n
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Remember, CDP RUN is used in global config\xa0\n
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CDP ENABLE is used in interface config mode to\xa0\n
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Okay, let’s check that it was disabled. DO\xa0\xa0
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SHOW CDP INTERFACE F0/10. And now there is no\xa0\n
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That’s all for SW1, now I’ll go on R1. ENABLE.\xa0\n
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SHOW CDP NEIGHBORS. We already labeled G0/2 and\xa0\n
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G0/1, let me label those. G0/0 for R1, and G0/1\xa0\n
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to R2’s G0/0 interface, I’ll label them. G0/1 for\xa0\n
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now let’s check R1’s IP address.\xa0\n
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Up here at the top you can see both the IP\xa0\n
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INTERFACE BRIEF is a convenient way to check IP\xa0\n
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So, I’ll add the 10.0.13.0/30 network label\xa0\n
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and .1 for R1’s IP address. Now, because\xa0\n
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valid host address in the network, that is .2.\xa0\n
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However, just to practice CDP let’s confirm R3’s\xa0\n
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R3. Up here under the device name you\xa0\n
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Now let’s check R1’s G0/1 interface. SHOW\xa0\n
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so let’s add those labels. 10.0.12.0/30\xa0\n
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and once again this is a /30 network\xa0\n
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Okay, let’s speed things up for the remaining\xa0\n
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first PC2. From the CLI of PC2, use IPCONFIG.\xa0\n
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address is 192.168.2.254. Let’s add those labels.\xa0\n
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.1 for PC2 and .254 for R2. Next I’ll move on to\xa0\n
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Okay, here we can see that SW2’s G0/2\xa0\n
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let’s add those labels. G0/2 for SW2, and\xa0\n
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sometimes it’s difficult to make all of\xa0\n
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while still fitting it all on one screen.\xa0\n
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SHOW INTERFACES STATUS. The\xa0\n
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so I’ll add that label, F0/1. Finally\xa0\n
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CONF T. INTERFACE F0/1. NO CDP\xa0\n
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Next, R2. All we need to check is the\xa0\n
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SHOW CDP NEIGHBORS. So, R2’s G0/2 interface\xa0\n
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I’ll add those labels now, G0/2 for both routers.\xa0\xa0
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Now, how about the IP addresses?\xa0\n
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Okay, R2’s IP address is 10.0.23.1/30.\xa0\n
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10.0.23.0/30, and R3’s address must\xa0\n
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10.0.23.0/30 for the network, .1 for\xa0\n
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Next I’ll do the same for PC3, SW3, and R3.\xa0\n
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PC3’s IP address is 192.168.3.1/24,\xa0\n
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Let’s label them. 192.168.3.0/24 for the network,\xa0\n
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ENABLE. SHOW CDP NEIGHBORS. Okay, SW3’s G0/1\xa0\n
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let me label those. G0/1 for SW3, and G0/0 for R3.\xa0\n
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SHOW INTERFACES STATUS. FastEthernet0/24\xa0\n
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And finally let’s disable CDP on that interface.\xa0\xa0
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CONF T. INTERFACE F0/24. NO CDP ENABLE. Okay, we\xa0\n
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and disabled CDP on interfaces connected\xa0\n
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Next, in steps 3 and 4 let’s disable CDP\xa0\n
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TRANSMIT and RECEIVE on the interfaces\xa0\n
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First, let me clarify something about LLDP\xa0\n
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have to enable LLDP globally and on each\xa0\n
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should enable LLDP TRANSMIT and RECEIVE on each\xa0\n
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device. On some devices, LLDP itself is globally\xa0\n
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these configurations on, configuring LLDP RUN also\xa0\n
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this lab, however, LLDP TRANSMIT and RECEIVE have\xa0\n
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The configurations are quite simple,\xa0\n
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I’ll start here on SW3. First, EXIT to return to\xa0\n
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And then enable LLDP. LLDP RUN. Now, we need to\xa0\n
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network device, G0/1 only on SW3. INTERFACE\xa0\n
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ENABLE. CONF T. NO CDP RUN. LLDP RUN. Next I’ll\xa0\n
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INTERFACE RANGE G0/0 – 2. LLDP\xa0\n
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Next I’ll do SW2. EXIT. NO CDP RUN.\xa0\n
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INTERFACE G0/2. LLDP TRANSMIT. LLDP RECEIVE. Okay,\xa0\n
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enable it on all connected interfaces. INTERFACE\xa0\n
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Okay, finally SW1 and R1, SW1 first.\xa0\xa0
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EXIT. NO CDP RUN. LLDP RUN. INTERFACE G0/1.\xa0\n
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CONF T. NO CDP RUN. LLDP RUN. INTERFACE\xa0\n
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Okay, we’ve enabled LLDP on all devices. I’m going\xa0\n
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As I click through here, you’ll see\xa0\n
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EIGRP, because I pre-configured EIGRP\xa0\n
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out some pings. Also STP, and LLDP.\xa0\n
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So, with this we can confirm that CDP has\xa0\n
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If you want some additional practice, you could\xa0\n
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this time using LLDP instead of CDP.\xa0\n
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let’s take a look at a bonus lab in\xa0\n
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Okay, here's today's Boson NetSim lab preview.\xa0\n
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Protocol. Here is the lab topology. It's pretty\xa0\n
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As I have said before, NetSim has a wide variety\xa0\n
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and some of them are shorter and simpler\xa0\n
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you need to know to complete this lab.\xa0\n
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LLDP HOLDTIME, RECEIVE, RUN, TIMER, TRANSMIT,\xa0\n
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tasks. Task 1 is Configure LLDP. Task 2 Configure\xa0\n
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So looks pretty long, but each of these steps is\xa0\n
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So starting with Task 1, step 1. It says up here,\xa0\n
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So here we are. Step 1, display global LLDP\xa0\n
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SHOW LLDP. Okay, no LLDP is not running at the\xa0\n
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LLDP RUN. So, that enables\xa0\n
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and as I clarified before this also should enable\xa0\n
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the lecture I said you have to enable it globally\xa0\n
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usually just LLDP RUN should be enough. But this\xa0\n
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Okay, so display a summarized list, or sorry\xa0\n
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command to verify that LLDP is enabled. So,\xa0\n
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it says status: ACTIVE. Okay, now I'll show that\xa0\n
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How many neighbors have been discovered?\xa0\n
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step 5. Display a detailed list of neighbors.\xa0\n
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And what is the chassis ID of the neighbor\xa0\n
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that chassis ID is. That is this here. And what\xa0\n
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is the MAC address of Router2. Okay, how many\xa0\n
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previously received LLDP information for this\xa0\n
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that means. That is referring to the hold time.\xa0\n
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But at the moment there are 97 seconds\xa0\n
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there were 97 seconds. If I do that again, now\xa0\n
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Okay, so that is task 1. Next task 2 step 1.\xa0\n
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interface. Okay, DO SHOW LLDP INTERFACE F0/0.\xa0\n
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receiving and sending LLDP advertisements? Well,\xa0\n
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currently IDLE, meaning it's waiting to send the\xa0\n
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that means it is waiting for the next frame from\xa0\n
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being sent out of the FastEthernet0/0 interface.\xa0\n
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TRANSMIT. And that disables the\xa0\n
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Okay, and then in step 4 let's\xa0\n
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Okay, so Tx is now disabled. However Rx is still\xa0\n
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LLDP messages from Router2, but it won't\xa0\n
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Okay, and then step 5 says to configure Router1\xa0\n
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it already is, Rx is enabled, and to send LLDP\xa0\n
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Okay, so that means enable TRANSMIT once more.\xa0\n
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Okay finally task 3, tune LLDP timers.\xa0\n
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What is the default number of seconds that\xa0\n
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sent? So that is by default 30 seconds. And next,\xa0\n
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elapse before a receiving device\xa0\n
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in a previously received LLDP advertisement\xa0\n
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difficult to understand, that is referring to\xa0\n
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And there are the default timers. 30 seconds\xa0\n
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120 second holdtime, and also the reinitialization\xa0\n
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Okay, and then in steps 2 and 3 we are\xa0\n
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a 60 second hold time and 15 second\xa0\n
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LLDP TIMER 15. And let's check. DO SHOW\xa0\n
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Okay, so that's all for this lab. To finish up\xa0\n
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icon up here, it says grade lab. So if I click\xa0\n
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successfully. And you can check the configurations\xa0\n
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configurations are highlighted either red or blue,\xa0\n
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Okay so that's Boson NetSim for the\xa0\n
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please follow the link in the video description.\xa0\xa0
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There's over 100 detailed, guided labs, and\xa0\n
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So I really highly recommend Boson NetSim\xa0\n
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So once again, if you want Boson NetSim, please\xa0\n
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Before finishing today’s video I want\xa0\n
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To join, please click the\xa0\n
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Thank you to Magrathea, Samil, Aaron, Junhong,\xa0\n
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Nasir, Erlison, Apogee, Marko, Daming, Jhilmar,\xa0\n
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Mark, Yousif, Boson Software,\xa0\n
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Sorry if I pronounced your name incorrectly,\xa0\n
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This is the list of JCNP-level members at the time\xa0\n
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you signed up recently and your name isn’t on\xa0\n
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Thank you for watching. Please\xa0\n
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like the video, leave a comment, and share the\xa0\n
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If you want to leave a tip, check the links in the\xa0\n
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and accept BAT, or Basic Attention Token, tips\xa0\n
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