From the course: Cisco CCNP ENARSI v1.1 (300-410) Cert Prep: 2 VPN Technologies

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Lab: BGP troubleshooting

Lab: BGP troubleshooting

From the course: Cisco CCNP ENARSI v1.1 (300-410) Cert Prep: 2 VPN Technologies

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Lab: BGP troubleshooting

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- [Instructor] In this lab, we want to look at troubleshooting BGP. We have a typology in which we're told that routing does not appear to be working correctly, throughout the network. Specifically, we only have unidirectional traffic, from R1 to R3. From router R3, we are not able to ping the loop back interface, of R1. So go ahead and pause this video, import the attached yaml file into Cisco Modeling Labs, so that you can use this based apology and configuration that I've provided, and see if you can resolve the BGP issue. Once you do that, you can resume the video and we'll walk through the solution together. (upbeat music) Starting on R1, let's just verify our issue. Let's try to ping 3.3.3.3, which is R3 loop back interface. And indeed, we do have a success there. Can we ping R2? Yes. We can also ping that. Let's try, from R3. Let's try to ping first R2. So we know we can get there. That's good. What about pinging R1? We can see that, those pings are failing. So this is our…

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