Tag Archives: mpls

VTY access-class Behavior With VRFs

Over the past few weeks, I have posted several introductory articles that deal with the concept of VRFs. One behavior that is modified when VRFs are introduced is the VTY access-class command. A router that is configured for VRFs will … Continue reading

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VRFing 103, Using NAT Virtual Interfaces for Global Reachability

The last few technical articles I’ve written have been around the topic of VRFs. VRF, short for Virtual Routing an Forwarding, is basically a way to carve out areas of isolation in your router. The way this is accomplished is … Continue reading

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VRFing 102, Providing Internet Access With Dynamic PAT

Last week I wrote an article called VRFing 101, Understanding VRF Basics. This was a short and simple introduction into a technology that provides tremendous flexibility for network designers. With flexibility, complexity always follows. This is true in the case … Continue reading

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VRFing 101, Understing VRF Basics

When most engineers think about VRF, they think about MPLS. VRF, short for Virtual Routing and Forwarding, is one of the features that enable designers to create flexible MPLS network designs. However we are going going to completely forget about … Continue reading

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