Software Defined Networking - "The Biggest Thing Since Ethernet"

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Latest Blogs from SDN Journal
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...
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...
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 ...
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...
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...
Not all network management solutions are alike, even though they may sound that way sometimes. A sure sign of a network management tool trying to pass itself off as an enterprise solution is when it implements distributed polling as a way to scale. These systems scale server capacity ...
On the surface, many network management products seem the same. But any network management system claiming to be a solution will, at a minimum, maintain an inventory of the network devices, understand their interconnectivity, monitor (and alert on) each device’s response (availability)...
California Natural Resources Agency gains agility from a software-defined data center strategyusing the best of centralized and de-centralized IT resources. The next BriefingsDirect innovator case study interview explores how the California Natural Resources Agency (CNRA) in Sacrament...
Log data provides the most granular view into what is happening across your systems, applications, and end users. Logs can show you where the issues are in real-time, and provide a historical trending view over time. Logs give you the whole picture. Modern infrastructure constantly g...
"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 programmability in ...
While layer 1 (physical) interconnection of network resources will always be required – the bits need to flow on fiber or wireless at some point, the future of carrier and service resource intercommunications must evolve to accept and acknowledge the need for user-driven, near real tim...
Licensing creates some major headaches for network managers, so I wasn’t surprised to read in a recent SearchNetworking article that “simplified licensing and billing” made the IT wish list for 2015. In the network management space, frustrations revolve around which licensing model to ...
Virtualization technology has matured and is a critical infrastructure component in most modern data centers, especially as a trusted part of production environments. As our use of, and reliance on, virtualization technology continues to grow it is important that we are managing the te...
Some of the network gear vendors cast a wary look at network management vendors, particularly those who do continual, automatic discovery of the network inventory and connectivity. Why? We know what’s actually out there, and what’s actually being used. We had one customer in the i...
After reading Sean Michael Kerner’s article in Enterprise Networking Planet earlier this month, I thought I’d add a few thoughts of my own to what he wrote. He discusses SDN and IPv6. Here’s my take on Software Defined Networking (SDN) in 2015: Given the ongoing hype and the rang...
When meeting with potential new customers, I’m frequently asked “do you have customized polling?” As we all learned in life, the question is often less telling than WHY the question was asked. I answer: “Of course, we have customized polling – what enterprise class solution (or even ...
SDNs, or more specifically provisioning automation platforms service provider interconnections, and have crept into nearly all marketing materials and elevator pitches in discussions with submarine cable operators, networks, Internet Exchange Points, and carrier hotels. While some of ...
In Part 1, I shared my thoughts on SDN in 2015, after reading Sean Michael Kerner’s article in Enterprise Networking Planet. This post will cover a few of my thoughts on IPv6. Once the initial scares surrounding IPv4 address exhaustion passed, enterprises have taken a relaxed attitud...
Many years ago Gartner introduced their technology Hype Cycle, which maps visibility against maturity for new technology. The Hype Cycle in essence states that many new technologies get a large amount of visibility early in their maturity cycle. The visibility and enthusiasm drops sign...
Technology was dominated by several prevalent trends in 2014 – from the Internet of Things (IoT) and big data to the cloud and cyber security, it seems like there was barely a day without one of these trends creeping up in the news. Now we have entered 2015, these trends are still at t...
In an informal survey of words used during seminars and discussions, two main themes are emerging at the Pacific Telecommunications Council’s 2015 annual conference. The first, as expected, is development of more submarine cable capacity both within the Pacific, as well as to end poin...
Ninety-percent of your users want your site to perform well during peak periods, like the last month or so. That's according to a study by Compuware, in which they also found that most dissatisfied users will throw you under a bus if your app or site performs poorly while they're despe...
Through http://blog.ipspace.net I landed on this article on acm.org discussing the complexity of distributed systems. Through some good examples, George Neville-Neil makes it clear that creating and scaling distributed systems is very complex and “any one that tells you it is easy is e...
One way or another, all data center networks exhibit at least 6 different functional areas that their operators need to engineer, implement, and operate with a differing set of needs and requirements. Similarly, in one way or another, most of the available SDN and virtualized network s...
Whenever we get to the end of a year we have this tendency to reflect on what has happened in the past year and how we can improve in the coming year. It’s natural to use the change of calendar year as a point in time to think back, even though practically speaking it is usually the mo...
Usually, it is the task of the system administrator in the organization to make its network stable and reliable. His effective operation requires him to know all the information on network: number of hosts, where they are situated, quality of connections between them, their operation, ...
The impact is that it's really difficult to apply access controls to something in the cloud using traditional models that force users and consumers to come to the enterprise data center where that service is hosted first. That has a very negative impact on performance, at a minimum. Si...
If RAID were really not relevant anymore (e.g. actually dead), why do some people spend so much time trying to convince others that it is dead or to use a different RAID level or enhanced RAID or beyond raid with related advanced approaches? When you hear RAID, what comes to mind? ...
Cloud computing seems to still be one of the reigning buzzwords in high-tech these days. Everything is either “in the cloud”, “powered by the cloud”, or some variation on the theme. I remember when hosted email was just that: hosted email. Today, such offerings are considered cloud off...
While many SPM Performance Monitoring users quickly see the benefits of SPM and adopt it in their organizations for monitoring — not just for Elasticsearch, but for their complete application stack — some Elasticsearch users evaluate SPM and compare it to Marvel from Elasticsearch. We...
The premise of cloud is based, like other emergent technologies, at least partially on the notion of abstraction. Cloud providers are able to achieve what appears to be boundless compute, limitless storage and never-ending network capacity by being able to simply "plug and play" the ha...
Recently Arista released a white paper surrounding the idea that having deeper buffers running within the network can help to alleviate the incast congestion patterns that can present when a large number of many-to-one connections are happening within a network. Also known as the TCP i...
The SMB market opportunity is huge. Currently, SMBs represent 44% of the total IT spend worldwide, a figure that Gartner predicts will cross the trillion dollar mark by 2015. That's some serious cash -- yet a market that  traditional storage and virtualization players have pra...
Data centers have matured immensely over the past decade with today’s data centers being greener than ever. Pike Research mentions that the green data center market was worth $17.1 billion in 2012. The green data center economy is expected to grow rapidly throughout this decade. Pike R...
I talk a lot about SDAS (that's Software Defined Application Services) with respect to F5 Synthesis and, well, F5 in general. That's because what F5 Synthesis delivers the ability to easily provision and orchestrate SDAS across a variety of deployment models (on-premise, in the cloud, ...