Practical OTV

Practical OTV ————- This post is all about OTV (Overlay Transport Virtualization) on the CSR1000v. I wanted to create the post because there are alot of acronyms and terminology involved. A secondary objective was to have a “real” multicast network in the middle, as the examples I have seen around the web, have used a direct P2P network for the DCI.
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Practical DMVPN Example

In this post, I will put together a variety of different technologies involved in a real-life DMVPN deployment. This includes things such as the correct tunnel configuration, routing-configuration using BGP as the protocol of choice, as well as NAT toward an upstream provider and front-door VRF’s in order to implement a default-route on both the Hub and the Spokes and last, but not least a newer feature, namely Per-Tunnel QoS using NHRP.
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GETVPN Example

A couple of weeks ago I had the good fortune of attending Jeremy Filliben’s CCDE Bootcamp. It was a great experience, which I will elaborate on in another post. But one of the technology areas I had a bit of difficult with, was GETVPN.
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Passed the CCDE written. Now what?

I was fortunate enough to finally pass the CCDE written exam yesterday morning. That begs the question of “Now What?” Well, I will spend a couple of days putting together a study strategy, based on where I am now compared to where I need to be in order to pass the exam.
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Overwhelmed – CCDE

I am preparing for the CCDE written exam, which I have coming up at CLUS. There are so much material to go through, both to read as well as watch CL presentations, it can be a bit overwhelming at times.
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EIGRP Query bounding.

In the process of restudying EIGRP as a protocol, and more specifically as to how it converges, you can’t avoid running into the saying “Remember to bound your queries!”. From a conceptual point of view its fairly easy to understand that the further out you ask for a prefix the longer the convergence process will take.
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Change of focus

I have decided to change my focus quite a bit. I was planning on tackling the IOS-XR exam this year and was preparing for it by going through the blueprint. However another track kept pulling me towards it, and ofcourse thats the CCDE track.
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