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From the Blogosphere

One of the charter responsibilities of DevOps (because it's a charter responsibility of ops) is measuring and monitoring applications once they're in production. That means both performance and availability. Which means a lot more than folks might initially think because generally spea...
In part 3 of our SDN series, I covered virtual versus physical infrastructure. This next segment will cover the three most commonly propounded benefits of SDN: efficiency, agility and security. Early, hyper-scale pioneers of SDN such as Google astounded the networking community with ...
For many MSPs, managing the outsourcing demands of their customers can result in a complicated relationship, but one that can be smoothed over by the MSP doing what’s right for them. Let me explain by example. I was in South Africa visiting a large MSP. They were using Entuity to m...
For some, SDN was about operational efficiency; about driving more stability and consistency out of the processes that push applications through the app deployment pipeline into production. For others, it was really about financial efficiency - the drive to lower capital expenditures. ...
Many network management systems can discover the topology of a network. As with inventory, some do it once (i.e., “get and forget”). Better ones continually monitor for topology changes. Lower-end tools, however, separate the topology from the management system. They get a map for the ...
Software-defined networking (SDN) and network functions virtualization (NFV) are still young in their deployment cycles. The industry is still developing operational experience about the agility SDN and NFV can offer as an evolution of network architecture and how to develop and manage...
For those deciding to embrace Software Defined Networking there are several obstacles to be overcome before deployment. Probably the hardest decision is which vendor to select. Given that the various SDN options are predominantly not interoperable, the decision as to which vendor to ...
SDN is a still simmering trend. It's not boiling over like cloud did in its early years but rather it's slowly, steadily continuing to move forward as more organizations evaluate, pilot and implement pockets of SDN within their organization. stage of sdn deployment 2015 But it's not ...
People will tell you that ‘software is eating the world’. It’s a good line and it has a good degree of truth in it, so it’s one of those terms that tends to get repeated. A more accurate statement might be: ‘software is eating into the core operational mechanics of the business world ...
When the melting pot boils down to it, our network is its own culture, with recurring traffic patterns, similar end users, and equipment named after inside jokes only your company will understand. Just like living within your own culture, it's important to not only understand HOW patt...
It is possible to implement SDN solely using existing network infrastructure and to provide SDN overlay connectivity using tunneling technologies. That said, most people concede that some physical hardware will be needed to perform certain key network functions or at key locations wit...
SDN technologies are broadly split into two fundamentally different paradigms - "overlay" SDN and "underlay" SDN. With overlay SDN the SDN is implemented on top of an existing physical network. With underlay SDN, the fabric of the underlying network is reconfigured to provide the pat...
Operationalizing the network continues to be a driving force behind DevOps and SDN. The ability to solve real problems using programmability to automate and orchestrate infrastructure provisioning and configuration across the application release process remains the hope for many intere...
For me the mantra of achieving speed via automation tools is nothing new. In fact I was ‘automating’ Citrix Metaframe builds using windows scripting techniques back in 2004. The market though, has become awash with different automation products and it’s fair to say that many enterprise...
Choosing between BIG-IP and LineRate isn't as difficult as it seems.... Our recent announcement of the availability of LineRate Point raised the same question over and over: isn't this just a software-version of BIG-IP? How do I know when to choose LineRate Point instead of BIG-IP V...
I've written other posts on some of the basic disciplines of management, including (so far) inventory and discovery as well as event management, and how these come in many forms and levels of implementation depending on the network management system. Same thing with performance managem...
Imagine you are dropped off in the middle of a jungle, without any familiarity of what to eat, where to drink, or how to build a fire and shelter. Were you ready? Do you survive? In an environment that can, quite literally, eat you alive, it helps to be equipped with the right tools an...
I'm often asked about Software Defined Networking (SDN) and when is the best time to implement a strategy. Customers and prospects are often unsure whether to embrace SDN now, soon or hold off for now. To help clarify my perspective, I've written a 10-part blog series. I'll be posting...
In part 4 of our series on SDN, I discussed some of SDN's most commonly asserted benefits. Here I'll look at the drawbacks, the majority of which are organizational or financial and not technical. The most commonly cited reasons for actively not deploying SDN are: Staffing SDN r...
Surprise, surprise! The world just got a little faster. In other news, water is wet, grass is green, and you still didn’t win the lottery. According to the latest State of the Internet report, Akamai has discovered this “quickening” trend in their fourth quarter analysis of internet...
Early, hyper-scale pioneers of SDN such as Google astounded the networking community with the increased network utilization they achieved using SDN. The industry norm for WAN link utilization is between 30% and 50%, whereas, by deploying SDN, Google drove utilization up to 95% (withou...
Infonetics analyst Clifford Grossner recently released a SDN enterprise study which found that nearly 80 percent of medium and large size businesses plan to implement SDN technology in the data center by 2017. The survey of 153 businesses also revealed that 65 percent of respondents ar...
TAPs and NPBs are certainly on a collision course and their functionality and use cases are overlapping more and more. Traditionally TAPs were relatively unintelligent - providing pass-through monitoring points (possibly with very limited filtering), passing a copy of the data seen on...
Polymorphism is a concept central to object-oriented programming. The notion of polymorphism is used to extend the capabilities of a basic object, like a mammal, to specific implementations, like cats or dogs or honey badgers, even though they don't care about such technical distinctio...
Vicom Computer Services, Inc. was awarded an 11 year contract with the MTA. The MTA launched a request for proposal in September 2013 for a project encompassing and creating a fully redundant core data network across the three core data centers and upgrade user access to applications...
In cloud-based architectures, the situation is different and the network has become even more important. Let’s imagine a typical cloud-based architecture situation. You run a datacenter with a flexible number of allocated computing instances (for example, due to the pricing model and v...

"Programmability in the network" is a wordy yet simpler way to describe the extension of network capabilities through the use of software-defined techniques.

See what I mean?

In any case, whatever you want to call it, there are two distinct methods of leveraging prog...

One of the neat things about microservices is the ability to segment functional actions into scalability domains. Login, browsing, and checkout are separate functional domains that can each be scaled according to demand. While one hopes that checkout is similarly in demand, it is unlik...
We explore how retailer Columbia Sportswear has made great strides in improving their business results through modernized IT, and where they expect to go next with their software-defined strategy. To learn more about the new wave of IT, we sat down with Suzan Pickett, Manager of Globa...
So exactly how do you kick start a DevOps strategy? For example, say your organization is tied down to a very sequential, but cumbersome Waterfall approach to software development that is wasting precious dollars and hindering productivity? In the following we’ve outlined some strategy...
There’s a lot more happening on your network than you think, and it could be costing you real money. Like high blood pressure or cholesterol, operating your network beyond threshold, at capacity or with other unaddressed issues could be the silent killer for your enterprise. Advanced ...
In this short video I summarized what I have learned about technologies and the latest trends over the past few weeks. I just circumnavigated the globe over a two week period. I have never done that before. I learned about mobile solutions, digital transformation, IoT, big data, In...
One question that springs to mind is why invest in embedded physical SDN vSwitches which sit in-line between each and every appliance and their corresponding access ports? Why not simply apply the appropriate SDN configuration to the access switch on a per-port basis (assuming the acc...
Once at a trade show I was challenged by someone who used a low-priced SMB tool to monitor his network of about 50 devices. He insisted it could do everything Entuity could do, for example, it offered event management just like ours. Well…not quite. Lots of vendors offer event managem...
You may have noticed that we’ve been spending some time out west demonstrating our big data fabrics and sharing our vision for the third era of networking. You’ll be seeing more meet-ups and live demonstrations in the near future, so keep an eye on the blog and on Twitter to see where ...
Immutable infrastructure, which I think is more appropriately called disposable infrastructure, has been enjoying a reinvigorated life with the success of Dockers and containerization over the past year. Too, DevOps has played a role in resurrecting the notion of disposable infrastruct...
If you’ve been following us on the blog or on social media, you know that we announced our partnership with Big Data platform provider Cloudera last month. And, that a few months ago, our own Ed Henry demonstrated how to construct Big Data fabrics that easily integrate with systems lik...
The Law of Software Entropy as described by Ivar Jacobson et al. in "Object-Oriented Software Engineering: A Use Case Driven Approach": The second law of thermodynamics, in principle, states that a closed system's disorder cannot be reduced, it can only remain unchanged or increased...
I read an interesting article the other day that resonated so much I felt it was worth sharing and expanding upon its premise here. The article, originally written by Andrew Dailey of MGI Research, delved into the role of growth and accelerated time-to-revenue in a successful enterpris...
“Free” reigns supreme when it comes to online marketing. But “pay” is more profitable to your bottom line. In the popular Freemium world of digital offerings, where free and premium content or services are offered, it’s prudent to consider how you will transition free offerings into pa...