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From the Blogosphere

Throughout the development cycle of new features and functions for any network platform (or probably most other products not targeted at the mass market consumer) this one question will always come up: should we protect the user of our product from doing this? And “this” is always some...
When SDN made its mainstream debut at Interop in 2012, there was quite a bit of excitement tempered by the reality apparent to some folks that technical limitations would impact its applicability above layer 2-3 and, perhaps even at layers 2-3 depending on the network. But even then w...
While some might still be focused on SDN with an OpenFlow-style twist, 30% of the organizations in our survey this summer (report forth coming, I promise!) were looking at SDN to improve time to market. Of those, 73% considered an API-enabled infrastructure to be important to very impo...

#SSL #webperf #infosec 

Now your services can take advantage of hardware acceleration even when they're deployed on virtual machines

Way back in the day, when SSL offlo...

#SDN #DevOps Stateful is not stateless. And vice-versa.

 

As one of Heroku’s beta users I had the chance to check out the new Heroku button gallery last week. I must say I was very pleasantly surprised. Over the past few years, it’s fair to say Heroku have nailed their PAAS offering. They are one of the few PAAS providers to truly succeed in...
I remember when we first started talking to customers about the concepts of applications driving networks, about 3 years ago (This was a very different conversation from other networking era’s where we talked about ‘intelligent’ networks that could better understand and adapt to applic...
Software-defined networking is fundamentally about two things: the centralization of network intelligence to make smarter decisions, and the creation of a single (or smaller number of) administrative touch points to allow for streamlined operations and to promote workflow automation. T...
We (as in the industry at large) don't talk enough about applying architectural best practices with respect to emerging API and software-defined models of networking. But we should. That's because as we continue down the path that continues to software-define the network, using APIs an...
Executives charged with building business-driven applications have an extremely challenging task ahead of them. However, the cavalry has arrived with useful tools and strategies built specifically to keep modern applications working efficiently. We partnered with Gigaom Research to ca...
Inarguably, the pressure is on "the network" to get in gear, so to speak, and address how fast its services can be up and running. Software-defined architectures like cloud and SDN have arisen in response to this pressure, attempting to provide the means by which critical network servi...
If the existing system does fifteen things, write down the major tasks of that system and divide them into as many verticals as necessary to describe the broad functional areas that require attention. If the replacement is intended to be a custom-developed, on-premises system, it’s per...
My favorite war room accusation is: “It’s always the network at fault!” Whether you’re the one taking the blame or the one pointing the finger likely has everything to do with which seat you occupy in that war room. I suppose that comes with the territory, because at the same time ther...
Last week Ivan Pepelnjak wrote an article about the failure domains of controller based network architectures. At the core of SDN solutions is the concept of a controller, which in most cases lives outside the network devices themselves. A controller as a central entity controlling the...
The keys to the digital kingdom are credentials. In no industry is this more true (and ultimately more damaging) than financial services. The sophistication of the attacks used to gather those credentials and thwart the increasingly complex authentication process that guards financial ...
The software-defined data center (SDDC) and hyper-converged markets have been gaining significant steam of late, and last week’s VMworld event put an even brighter spotlight on the space. When considering hyper-converged infrastructure solutions, it’s important to note the distinction ...
The term hybrid is somewhat misleading. In the original sense of the word, it means to bring together two disparate "things" that result in some single new "thing". But technology has adapted the meaning of the word to really mean the bridging of two different technological models. For...
When we are deciding between public or private cloud implementation there are some capabilities we need to take into consideration and security is one of the top ones. Other characteristics like integration with existing systems, costs and management are also important. Looking at the...
Elasticity is hailed as one of the biggest benefits of cloud and software-defined architectures. It's more efficient than traditional scalability models that only went one direction: up. It's based on the premise that wasting money and resources all the time just to ensure capacity on ...
As enterprises work to rapidly embrace the mobile revolution, both for their workforce and to engage more deeply with their customers, the pressure is on for IT to support the tools needed by their application developers. Mobile application developers are working with a massive variety...
I love The Internet of Things. You do, too, even if you don’t know exactly what it is yet. Hardly a day goes by where I don’t find a story about some awesome company creating some new awesome gadget that taps into The Internet of Things. Scrolling through these stories is like taking a...
Back when we were doing DB2 at IBM, there was an important older product called IMS which brought significant revenue. With another database product coming (based on relational technology), IBM did not want any cannibalization of the existing revenue stream. Hence we coined the phrase ...
What if you could deploy a new IT service shortly after you defined the requirements? And, just imagine the bliss, if your IT spend could directly translate into a competitive advantage. Predicting the ROI would be relatively easy. You would be the envy of your peer group. Unfortuna...
Think of a cloud provider. I’d bet that for the majority of people reading this article, the first that comes to mind is AWS. Amazon Web Services were a trailblazer in the cloud space, and they still lead adoption rates at all levels of the market, from SMBs to multinationals. In some ...
User Experience (UX), in networking is a tricky thing. It’s not just about the direct user interaction of a particular feature or of a particular product. Over at Packet Pushers, we see many blog entries reviewing network products. Time and time again, they show us that UX encompass...
Achieving the ultimate ‘Five Nines’ of web site availability (around 5 minutes of downtime a year) has been a goal of many organizations since the beginning of the internet era. There are several ways to accomplish this but essentially a few principles apply. Web applications come in ...
In the five seconds it takes you to read this, 60% of your visitors just abandoned your site. Another 20% were gone before you even hit the first comma, and 30% of all them are purchasing from one of your competitors. That's what Limelight Networks "State of the User Experience" says,...
Application delivery, as defined as its own little corner of the network industry, has been fairly focused on assuring the performance, security and availability of applications since its inception back around 2003. Oh, the ways in which those three core tenets have been supported by a...
It's not the first time we've heard the statement that cloud can be too expensive and I doubt it will be the last. This latest episode comes from Alexei Rodriguez, Head of Ops at Evernote by way of Structure 2014: It is important to note that this admission - like those in the past - ...
In a previous article, we talked about “Short T’s.” We talked about how, in network engineering, the “T” is very long: Configuring a network to achieve business goals requires considerable skill and knowledge. While we set up a conceptual model in that post to talk about what “T” me...
Application delivery is always evolving. Initially, applications were delivered out of a physical data center, either dedicated raised floor at the corporate headquarters or from some leased space rented from one of the web hosting vendors during the late 1990’s to early 2000’s or some...
When people talk about Big Data, the emphasis is usually on the Big. Certainly, Big Data applications are distributed largely because the size of the data on which computations are executed warrants more than a typical application can handle. But scaling the network that provides conne...
Much has been published about the Open Compute Project. Initiated by Facebook, it has become an industry effort focused on standardization of many parts and components in the datacenter. Initially focused on racks, power and server design, it has also added storage and now networking t...
Some people are never satisfied. These fearless agents of change are everywhere. They're informed, confident and willing to experiment. They seek out the best business technology solution for the job at hand. They act on instinct. Yes, you could say that they're driven. However, they'...
One of the primary principles of object-oriented programming (OOP) is encapsulation. Encapsulation is the way in which the state of an object is protected from manipulation in a way that is not consistent with the way the variable is intended to be manipulated. The variable (state) is ...
Last week Greg Ferro (@etherealmind) wrote this article about his experience with scripting as a method for network automation, with the ultimate conclusion that scripting does not scale. Early in my career I managed a small network that grew to be a IP over X.25 hub of Europe for a...
Cloud computing has finally come into its own. While we’ve been hearing for 8 years or more that cloud computing would one day take over the enterprise, the fact of the matter is that it’s been slow going. While the spread of cloud computing solutions hasn’t been as rapid as many earl...
It's an application world; a world that is rapidly expanding. With new opportunities and markets arising driven by mobility and the Internet of Things, it is only going to keep expanding as applications are deployed to provision, license, and manage the growing sensors and devices in t...
The challenge in architecting, building, and managing data centers is one of balance. There are forces competing to both push together and pull apart datacenter resources. Finding an equilibrium point that is technological sustainable, operationally viable, and business friendly is cha...
Despite the hype and drama surrounding the HTTP 2.0 effort, the latest version of the ubiquitous HTTP protocol is not just a marketing term. It's a real, live IETF standard that is scheduled to "go live" in November (2014). And it changes everything. There are a lot of performanc...