I recently came across IPython while reading some Python development blogs. IPython is an alternative to the standard Python shell that offers some additional features. When I first read about IPython, I was a little confused because many people refer to it as the ‘Python interactive shell’. While IPython is an interactive shell, it is not the Python interactive shell. For instance, we can enter the Python interactive shell just by typing ‘python’ on our Python development box…
So, what we really did here was invoke the Python interpreter in interactive mode. In this mode, commands can be read from the TTY and directly interpreted. So for example, we can do something like this…
The Python code we type is directly interpreted and we get the output we would expect. So instead of using the Python interpreter to run a .py script, we could do it all directly from the interpreter. So the example from our Python up and running post works just as well in interactive mode as it did when run as a script…
So that’s Python interactive mode. Now, let’s talk about IPython. The first thing we Continue reading
On September 16 2015 at 10:00AM PST, Apple released their latest update to the iPhone: iOS 9. For several days after the announcement, ISPs and customers reported problems downloading iOS 9 due to overloaded servers. Obviously, the demand for iOS 9 was higher than even Apple anticipated, but how much higher? Few organizations outside of Apple have any idea what the actual iOS 9 adoption rates look like.
By analyzing the user agent strings of requests passing through the CloudFlare network, we were able to piece together a pretty good picture of iOS 9 uptake. Here’s an hour-by-hour look at requests from iOS 8 devices (blue) and iOS 9 devices (orange) for the first 24 hours after the announcement.
We started seeing small amounts of iOS 9 usage before it was officially released, followed by a spike immediately after the launch (times are shown in UTC, so the 10:00AM announcement shows up as hour 18). You can also see a second spike at 10:00 UTC when Europe started waking up.
Even though the official release was for iOS 9.0, we also found beta iOS 9.1 in the wild. Curious about the comparative traffic Continue reading
A10 and Blue Coat could find an edge by doing SSL well, one analyst believes.
No, I’m not starting a naming war. Not really. I don’t care if you use ! or # or >> or {} to mark your interface descriptions. I don’t care if you use all-caps or lowercase, or if you feel … Continue reading
The post Interface descriptions – your last hope appeared first on The Network Sherpa.
SK Telecom applies NFV to VoLTE, after dabbling with a vEPC.
Network Break 54 examines HP's anticipated layoffs, financial news from startups, and listener feedback on what we got wrong about an Apple/Cisco partnership.
The post Network Break 54: HP Blues, Listener Corrections appeared first on Packet Pushers.
The cruise line company uses Citrix's SDN products to create reliable network.
Giving a presentation is never an easy thing for a presenter. There’s a lot that you have to keep in mind, like pacing and content. You want to keep your audience in mind and make sure you’re providing value for the time they are giving you.
But there is usually something else you need to keep in mind today. Most presentations are being recorded for later publication. When presenting for an audience that has a video camera or two, there are a few other things you want to keep in mind on top of every other thing you are trying to keep track of.
One of the things you really need to keep in mind for recorded presentations is time. If the videos are going to be posted to Youtube after the event the length of your presentation is going to matter. People that stumble across your talk aren’t going to want to watch an hour or two of slide discussion. A fifteen minute overview of a topic works much better from a video perspective.
Never rely on a lower third to do something you are capable of taking five seconds to say.
Keeping Continue reading
The past few years have been marked by tremendous growth for CloudFlare. At the time of our last fundraising in December 2012, CloudFlare was a team of 37 operating a network in 23 cities and 15 countries—today we number over 200 with a presence in 62 cities and 33 countries. We’ve grown from delivering 85 billion page views per month for 500 thousand customers to nearly 1 trillion each month across 4 million Internet properties, all the while protecting our customers from hundreds of billions of cyber threats. The growth and resonance of our service since CloudFlare’s founding 5 years ago is beyond our wildest of expectations, but it is only in the coming years that our scale and efforts to build a better Internet will become visible.
In 2016 alone we will more than double our global presence, increase the size of our network by an order of magnitude, and with that allow millions of new businesses and online publishers to accelerate and secure their online applications and harness the growing power of the Internet economy. Our service is built on the simple premise that any individual or business should be able to quickly and easily ensure the global Continue reading
ZTE opens an OPNFV test bed and starts collecting NFV partners.
Join SDxCentral and Brocade for the SDN Controller Report webinar on September 29th at 10:00am PT. Register today!
When I made a stab at defining SD WAN recently, I noted that Cisco’s IWAN solution had provided a bit of a contrast to some of the other Software Defined WAN solutions I’d seen; not in a bad way, but I was certainly interested in the approach.
I’m going to “do a Joe Onisick” here and quote myself as a reference for what I might be hoping for from the Cisco IWAN solution:
“SD WAN is a solution that uses real time WAN link performance monitoring and data packet inspection to autonomously manage the distribution of network traffic across multiple, likely heterogenous, WAN links with the aim of improving and optimizing WAN performance in alignment with the business requirements.” – John Herbert
One thing my definition doesn’t mention is how these systems get deployed, and since that’s interesting, perhaps let’s start there.
It seems to me that ZTD has become a checkbox requirement for all the SD WAN solutions, and perhaps it’s about time. Zero Touch Deployment in the context of SD WAN means being able to ship a box to a spoke site, have ‘Dumb Hands’ on site plug in the Continue reading