After giving this some thought, I really can't in good conscience cap off an MPLS Fundamentals sessions without dipping our toes into the intermediate waters of "Route Leaking" with MPLS, as a Network Engineer you will some day run into two companies under the same Umbrella with two different MPLS rings that need to leak … Continue reading MPLS – Route Leaking Lab, as well as “Extranet” configuration to allow two separate MPLS Customer subnets to chat!
Above is a graphic of my own Meraki stack at my home, however this will only be reviewed in discussion of network "Planes" before we close out MPLS discussion 🙂 In this final MPLS post I wanted to first get a very clear understanding of Management Plane vs Control Plane vs Data Plane, then take … Continue reading MPLS – Detailed look at “Planes” in the network, MPLS L3 VPN traffic flow reviewed through Wireshark, and how Import / Export VRF functions work!
Above is the full scope of the Topology that will be configured by the end of this, utilizing all different protocols for CE to PE, mainly to demonstrate it flexibility with accepting IGPs for all walk of life which is what this blog is all about 🙂 NOW, I had went ahead and used Keith … Continue reading MPLS – Now to apply the Network Ninja troubleshooting to get these CE Routers talking across the MPLS Network!
I will be primarily looking at this through the lens of R3 to R4 when reviewing the below material, this is very heavy into MPLS verification commands / debug output / WireShark capture screen snips, so this will not be for anyone looking for a light read. I was planning on fitting LDP and … Continue reading MPLS – LDP Session Initialization, Active / Passive LDP Neighbors, Verification Commands for LDP, and lots more LDP!
Will be doing a very simple IGP setup using OSPFv2, MPLS, and doing some verification commands to demonstrate different ways to verify MPLS Bindings / LDP in action / Labels through the LSP (Label Switched Path). However first upon booting up my lab I saw my Layer 3 VPN tunnel throw a console message, so … Continue reading MPLS – Layer 3 VPN configuration review on PE Routers, configuration of Provider Routers, and verification commands!
A very brief introduction to MPLS, and the benefits it provides to customers MPLS is the realization from its predecessors ATM and Frame-Relay that a more efficient, lower cost, and higher speed WAN packet switching solution was needed in the late 90's which gave way to the IETF coming up with MPLS. For all … Continue reading MPLS – A brief introduction, and a technical overview of MPLS Mechanisms and Terminology visually demonstrated!
Have a few more deep dive sort of Material / Review for EIGRP, and one of them I wanted to be clear on for the exam and out in the wild, is how EIGRP forms relationships over the WAN and why it's important to know what type of WAN is connecting the neighbors. EIGRP over … Continue reading EIGRP: How EIGRP forms relationships over different types of WAN’s (We are getting close to done with EIGRP review)!