Tag Archives: mpls

MPLS and VRFs – Filling the Gaps

A few years ago, I took an SE role covering¬†Higher Education accounts. I quickly realized one of the deficits Cisco has in the CCNA program as it pertains to networks with a certain set of requirements. While the program is … Continue reading

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MPLS Intro Series – Route Reflectors

This is the final article in the MPLS Intro Series and will quickly mention the need for route reflectors. This need is driven by the iBGP requirement for a full mesh of peers. This means that a network with only … Continue reading

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MPLS Intro Series – VPNv4 Packet Walk

In our last article, we configured and tested a basic VPNv4 configuration. In this article, we will do a hop by hop analysis of each device and look at a packet capture for a couple of the steps in the … Continue reading

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MPLS Intro Series – Introduction to VPNv4

In the previous article, we took a look at building a simple label switched path (LSP) through an MPLS network. This article takes the configuration a step further and leverages multiple labels to connect and isolate VRFs over an MPLS … Continue reading

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MPLS Intro Series – Understanding a Simple LSP

In the previous article, we created an interesting situation with an iBGP configuration.¬† In that example, we made Edge2 aware of a route via BGP that the intermediary hops would not see. In this article, we will fix this problem … Continue reading

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MPLS Intro Series – Destination Routing

Yes, we are going to talk about destination routing. I know it sounds boring and archaic, and it is. But it is also necessary to contrast against another topic that I intend to introduce. As I scour PacketU, I see … Continue reading

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