R1: Seems to know how to get to 10.8.0.0/24 We’ll start by verifying that R1 knows the way to 10.8.0.1. Let’s try a traceroute: R7: Traceroute fails after hitting R1. Let’s check R7’s BGP table: R7: Seems there’s a known path to the 10.8.0.0/24 network. So we have a little bit of a problem here. There’s no direct link between R1 and R4, there’s just the logical iBGP neighborship. The idea is that AS 100 is a transit AS between AS 700 and AS 800. Let’s take a look at the topology we’ll be labbing with: MPLS Topology But for right now, I want to focus on the third one, BGP-free Core.
MPLS Fundamentals breaks all these down in a lot of detail.
As always, LabMinutes – Video: Service Provider | Lab MinutesĪccording to MPLS Fundamentals, it’s no longer about faster switching since the hardware has advanced to a point where there’s no real gain from the faster lookup of 20-bit labels as opposed to full 32-bit routes.The key is to have a steady labbing schedule where you constantly review the things you’re pretty comfortable with while continuing to dive into things that you suck at. But if we learn it half-assed, then it’ll most likely be a huge chunk right at the center of the exam, and if you can’t get it working everything around it falls apart. If we learn it inside and out then it probably will barely show up on the lab. How far can you afford to go down that rabbit hole? Sadly, the answer is “All the way.” We just have to bite the bullet and learn it all. And there are 61 videos, averaging 20 minutes each, so probably in the 20 hour ballpark. First, notice MPLS doesn’t even sit under the R/S section, it’s under Service Provider.
So let’s take a look at and see what kind of MPLS offerings they have: – The best site ever. I understand the how and why at a pretty basic level, but I definitely need to sharpen up. At the moment, my knowledge is about a 1 out of 5. (MPLS is a huge topic on the CCIE Service Provider exam, spanning multiple sections.) So the trick for the Enterprise Infrastructure lab will be determining how much time and effort I put into learning the nuts and bolts of MPLS. According to the blueprint, MPLS and DMVPN combined make up just 15% of the exam. By the time I felt like I had a really good handle on it, I realized I had regressed quite a bit on every other topic. When I was studying for the CCIE Security exam, I feel like I spent too much time (about a month straight) working on FLEXVPN. During your time spent labbing topic X, your knowledge of topics Y and Z are slowly draining out. There’s a delicate balance in labbing and studying.