Recently, Dave at DavesBlog made some rather startling observations that Verizon is throttling Netflix traffic, backed up by a comment from some low level help desk staffer that this is true. The technical capability of a person who performs front line technical support is usually set at a low level to match what most customers need. Taking a casual comment as “truth” is wildly unreasonable. Here is more on the reality of net neutrality.
A few months back, Der Spiegel published a carefully selected cache of documents about the NSA Exploit Kits used to compromise a wide range of commercial network and security hardware and software. I haven’t seen anyone discussing the implications for commercial espionage. NSA Exploit Catalog A few months back, Der Spiegel published a carefully selected […]
I’ve been digging deeper into the SDN architectures over the last few days and there may be a pattern starting to emerge. I’m currently figuring that there are four broad classes of SDN technology that you can fairly neatly classify the current products from vendors. I’m classifying SDN Solutions into three categories of Micro, Centi and Kilo as well as classifying physical devices for SDN systems into three classes of Breve, Medius and Magnus.(Yeah, OK, I’m not good at names.)
Indiegogo project for a pocket Ethernet analyser. Pockethernet is the first smartphone connected Ethernet cable and network tester that is affordable and fits into your pocket. Only for Android OS which means most engineers (not all, but most) will need a dedicated Android device to run the software. But still a very useful bit of kit […]
Most people refer to the “Data Centre Network” as though it was a single network. In practice, data centres have a number of individual networks. Each network is specifically designed for a specific purpose and function. A typical data centre network design has about five individual networks that connect together to form the “data centre network” which many people fail to recognise. I’ll define these networks and then look at the future of data centre networks with overlays. What seems clear, today, is that networking will provide different networks for different use cases and the customer will decide.
This week is the second time I’ve seen an employer change called a “bias update”. It says, I’ve quit my current employment and moving somewhere that will also pay me to say things they want me to say. All of my opinions will now be tainted by the new company that will require me to […]
“I’m always worried that I’ll be wrong”. “What if my article has a mistake ?”. One of the most common objections to publishing a blog post is fear of public humiliation.
Take it from me. You are worried about the wrong problem. Here is how you should be thinking….
In last weeks Packet Pushers episode Show 177 – Current Practices I speculated about the relationship of Cisco and QNX. Turns out that most of what I discussed was wide of the mark and partly incorrect.
The entire purpose of ITIL was to manage failure and that’s why working in companies using is such a miserable work life. ITIL is focussing on the problem of failure instead of creating success. Welcome to the mis-managed IT process of “not failing” but also “not good” infrastructure of 2014. Yes, I’m all ranty and agitated about it.
Network Dictionary: Sonic Screwdriver
In discussion with a client recently about possible use cases for Cumulus Networks and an interesting persecutive came up. A half-joking solution was to define an network operating system standard on Cumulus Linux. As a result, the purchasing process would state that any hardware would be considered provided that it was certified and supported by Cumulus Linux. In purchasing parlance, defining a software standard is acceptable where a defining a hardware standard is not.
Cisco announces that it has expanded its ACI Strategy to include the Campus and WAN in the scope of the product as well hybrid cloud functionality. Some thoughts on what this means for network architects and engineers: My View – Cisco wants to maintain control and ownership of customer budgets on networking by having a […]
Digital Artwork, 2014. Inspirational verse captured in electronic frame relating to existing work practices and hoping for a better future. Post Ops:A Non-Surgical Tale of Software, Fragility and Reliability
I was eating the last of my toast as I sat down into the driver seat of my “CloudCar”. Customer visit at 09:30am. As I slipped my smartphone into the cradle, the dashboard screen came to life and opened the NavSat app with an error message that my maps were out of date and would I like to download the latest files. “Why not”, I thought ? I confirmed and the download started. Except that the data plan on the onboard 4G LTE connection had reached it’s data cap. The kids had been watching video on the way to the beach and used it up. So I confirmed the purchase of some extra bandwidth (I chose the middle plan because I always do), went back to the NavSat and restarted the updates.
Manav breaks down the OSPF vulnerability from Black Hat 2013 and confirms that it practical and viable failure of the OSPF protocol. So it was with certain skepticism that i started looking at yet another OSPF vulnerability exposed by Gabi, again at Black Hat. Its only when i started delving deep into the attack vector […]
While this is hilariously funny, especially the part about the guy talking to the wall at 1:50, this is why I rarely have telephone conference calls. Remember people, IP Telephony/VoIP is all fail. We all hate web conferences because they all work badly (some much worse than others, thats right Webex I’m looking at you) […]
Reuters reports that Lenovo has bought the server division of IBM. Some observations from my perspective.
As a network professional, it can be difficult to maintain a sense of perspective in relation to other areas of IT. Certainly, networking is the foundation on which all other services depend but it isn’t all that important to customers overall. VMware announced that it was buying AirWatch to boost it’s VDI capability in mobile […]
When working with Server and VMware people, there is a fair amount of misunderstanding of what is happening in the network. The best technical explanation for what is happening in LAG is, of course described at Ivan Pepelnjak’s IPSpace Blog – vSphere Does Not Need LAG Bandaids – The Network Does while Chris Wahl talks about the server side for VMware but I wanted to add something to the debate.
Jeff Fry has been quietly making a significant contribution to the networking community via a series of workbooks on NX-OS, IOS-XR and Junos that provide practical insight and experience into configuring, using and generally making like better.