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Throughput Troubleshooting

Have you ever found yourself in a position where throughput between devices, either local or across a WAN, seemed lower than expected? You may start by checking the configuration and logs on the network devices along the path, hoping to identify something out of the ordinary or unusual. Often a smoking gun isn’t immediately identifiable which then requires a coordinated approach to troubleshooting and narrowing down the potential causes. This write-up aims to provide some of the practices and tools I’ve used in similar situations.

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SDWAN and Service Providers: How Much Control Do You Want?

One of hottest topics in networking is SD-WAN. Being the latest thing, organizations are not always clear on how, or why, to deploy a solution like SD-WAN.

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Cisco SD-WAN Series Part 5b – cEdge Branch Site Integration Designs

This blog follows on from my last post and continues the discussion on how to integrate a single/pair of SD-WAN routers into our existing branch site topology. If you missed that last blog, then you can check it out here. Don’t worry I’ll be right here waiting for you.

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Cisco SD-WAN Series Part 4 – Overlay Management Protocol (OMP)

In my last post we looked at the steps that a vEdge goes through to bring up its control plane connections and authenticate itself onto the fabric. In this post we will follow on from where we left off and see how we use these control plane connections to exchange topology information, WAN policies and security keys via OMP.

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Cisco SD-WAN Series Part 2 – Lab Setup

In my last post in the series I introduced you to the four architectural components that control and enable our SD-WAN fabric. In that post I had promised that in our next installment we would take a closer look at our fabric bring up sequence, but if you will indulge me I would like to hold off on that topic for the next post. In its place I would like to use this post to introduce you to the lab environment that I have built for this series and take you through the process of deploying and registering a virtual vEdge router into our lab.

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Cisco’s Clock Signal Component Issue

On February 2, 2017 Cisco announced a major issue affecting products from their routing, switching, security and server product lines. Reference Tables A through D below for a full list of affected products and part numbers.

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Fireside Chat: SD-WAN


Enjoy the first Fireside Chat. Fireside Chats are a LookingPoint video series where we bring casual technology conversations to you! This week we are discussing one of the hottest topics of 2017: SD-WAN. Sit back, relax, and enjoy a nice fireside chat. 

Learn more about SD-WAN here.

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What is SD-WAN and What can it do for my Network?

The title to this blog is a question that I have been hearing a lot from customers in the last few months. With Gartner’s recent prediction that spending on SD-WAN will rise from $129 million in 2016 to $1.24 billion in 2020,  I figured it’s about time I write up a little blog article all about this latest offering to revolutionize the enterprise WAN, or perhaps not!

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