Collection of useful, relevant or just fun places on the Internets for 20th January 2014 and a bit commentary about what I’ve found interesting about them:
Drink from the firehose! Implement NetFlow data on your network with nfdump and nfsen – Nick Buraglio on open source sFlow/NetFlow tool nfsen :
I am an absolutely huge fan of statistical and instrumentation data, especially when it comes to traffic analysis, visualization and baselining. I’ve rambled on about the importance of it at every opportunity. As a result of that, I have been doing work with netflow and netflow-like data for a fairly long time. My first collector was the OSU Flow tools based stuff back around 13 years ago. From there I played with all kinds of netflow tools, both commercial and open source, finally settling most of my focus on nfdump and nfsen.
World of Ends – Although this was pulished in 2003 it’s still the best description of why net neutrality is fundamental to the nature of the technology.
If all of the Internet’s value is at its edges, Internet connectivity itself wants to become a commodity. It should be allowed to do so.
There’s good business in providing commodities, but every attempt to add value to the Internet itself must be resisted. To be specific: Those who provide Internet connectivity inevitably will want to provide content and services also because the connectivity itself will be too low-priced. By keeping the two functions separate, we will enable the market to set prices that will maximize access and to maximize content/service innovation.
I still have the view that the cost of building a two tier Internet is greater than the possible profits to be generated. Carriers should simply focus their business on improving speed, reducing latency and improving bandwidth to maintain revenue. Why do carriers pretend to act like startups ?
Cisco ACI – Speculation of its Inner Workings – Eric Flores is giving us some insight into the operation of ACI. So far, Cisco has elected not to discuss how the sausage is made and details are rare. But it’s all proprietary under the hood at this point in time.
I had assumed when Cisco made the ACI announcement that it would be based on OpenFlow. As the SEs were going through some of the slides naming different protocols, something dawned on me; There was no mention of OpenFlow! So I asked the question, “Is this not based on OpenFlow?” The speaker paused for a second and replied, “It uses VXLAN, ISIS and LISP.” I tried to ask more targeted questions after that, but he declined to give more detail.
Big Enterprises Need Big DevOps | TechViews – When even blogs from CA starts calling ITIL old and obsolete, you now that it’s well underway. This article debates how DevOps can replace ITIL as the next generation.
I am also coming to understand that DevOps is at a crossroads and you can see the signs of it in the way companies are using DevOps. Like ITIL before it, instead of sticking to a “pure” DevOps methodology, many companies are adapting DevOps and forcing it to flex. DevOps is such a good idea, yet it is so utterly foreign for so many (especially large) organizations that it apparently cannot take root without some fundamental compromise. Indeed, becoming mainstream – in anything from music to technology – almost always means change and compromise.
Death to ITIL!!
Do You Really Need Gigabit To The Desktop? Maybe. Maybe Not. — The Peering Introvert – Ethan Banks considers whether Gig to the Desktop is a great idea
Am I advocating 100Mbps switches for user workstations across the board? Not really. Except in rare cases, I haven’t installed a fast Ethernet switch for a long time. But I am saying that if you’ve got a bunch of 100Mbps desktop switches that are doing what the users need, then the fact that they are merely fast Ethernet isn’t a good enough reason by itself to want to throw them out.
Make your own cloud cushion | Liberty.co.uk Blog – Now you can take you arse to the cloud
All you need is one metre or less of medium-weight cotton fabric in your favourite print to make a cute cumulus-shaped cushion.
Also useful for crying into or comfort when you lose your job to the cloud (if you are in IT Infrastructure) or because the cloud has failed and lost all your data (Cloud Pundit). Both will happen.