Open Networking for the Whole of Your Data Center Network
In the past, I’ve designed, deployed and operated networks of various sizes, needs and scopes. One of the perennial design points common to all of them is how to approach the out-of-band (OOB) network. When it comes to making sure your production network operates in the face of issues, the OOB network is often a critical component. But it also raises the question of how to build it, what components to use and how much they affect the “day job” of running the production network. These decisions haven’t always been easy.
Generally, there is a spectrum of approaches. On one end is the choice to go with the same gear that you are deploying in the production network. On the other end is the decision to just build the OOB network out of what you can get from the local or online electronics superstore. One can cause you budget problems; the other raises the question if your OOB network will be there when you most need it. All too often the most frugal designs win, and this can cause you to have to troubleshoot the OOB network before you can troubleshoot the production network. So the issue is more than just the initial acquisition cost, Continue reading
Cisco and Avi Networks are covering the whole SDN stack now, as the two announce an integration between Avi and Cisco's ACI.
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Be honest. How many of you are still logging directly into the systems that you administer, via SSH, and changing things? I am. It’s a hard habit to break, but it’s one worth breaking. Luckily I don’t have very many servers of my own to manage, but changing things manually, instead of modeling those things in a language of automation is a sure way to build up technical debt and regret it later.