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Articles tagged sdn

You deployed an app. Nothing has changed in three days, but it suddenly crashes. Why? Memory leak. You deployed an app. Nothing has changed in three weeks, but it suddenly stops working. Why? A database query came back empty and the web...
Adapted from Frank Yue's "The Virtualisation Dilemma". 최근 대세로 자리잡은 가상화에 있어 어떤 현실적인 문제들이 있는지 고려해보는 것은 매우 중요하다. 최근 네트워크 및 서비스 인프라의 가상화가 네트워크 아키텍처에 혁명을 가져올 것이라는 주장이나 논의가 매우 활발하다. IDC에 따르면 전세계 소프트웨어 정의 네트워크 시장은 2014년 9억6천만 달러에서 2018년에는...
Security as Code
One of the most difficult things to do today, given the automated environments in which we operate, is to identify a legitimate user. Part of the problem is that the definition of a legitimate users depends greatly on the application. Your public...
There’s nothing software-defined about your network! Every time I see the term ‘software-defined network’ I cringe. A network isn’t software-defined. Sure, it can be operationalized – virtualized, made more intelligent, agile – but that’s the...
On Tuesday the 27th of January we announced the introduction of F5's BIG-IQ management platform to our Cisco APIC integration - the original integration being direct between APIC and the F5 application delivery controller (ADC). On...
This post is cross-posted at https://blogs.cisco.com/datacenter/how-you-integrate-network-services-matters Polymorphism is a concept central to object-oriented programming. The notion of polymorphism is used to extend the capabilities of a basi...
With an industry full of TLAs (three letter acronyms) Richard Duncan, Sr. Manager Systems Engineering, gives a wonderful explanation of SDN using the universal TV remote example. In this fun interview, Richard demystifies SDN and explains how SDN...
Please find the English language post from which this was adapted here. Konsep apapun berbasis software / software-defined; mulai dari Software Defined Networking (SDN), Software Defined Storage (SDS), dan bahkan meluas hingga Software Defined...
Frank Yue, Sr. Technical Marketing Manager, discusses Network Function Virtualization and how service providers are deploying it within their infrastructures. Frank talks about the relation to SDN, the functionality it provides SP’s, the NFV...
There's a common movie and television trope (known as the Third Wheel) that revolves around a guy, his girlfriend and either his or her "bestie". You know it - it's the bestie hates girlfriend or boyfriend trope, and it's a...
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...
"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...
Please find the English language post, by Lori MacVittie, from which this was adapted here. この2つには違いがあります。そして、その違いはユーザがどのような技術を選択するかに大きな影響を与えることになるので重要です。SDNが、初めてメジャーな技術として登場した2012年のInteropで...
Whether you've bought into DevOps or NetOps or SDN or SDDC (or all of them) as a way to operationalize the data center, one thing is clear: organizations are desirous of ways to deliver applications  and their infrastructure faster wit...
Today F5 is announcing a new F5® BIG-IQ™ 4.5. This release includes a new BIG-IQ component – BIG-IQ ADC. Version 4.5 isn't just another dot release. IMHO, this release should have been numbered 5.0. With this release, BIG-IQ is finally...
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 disord...
On August 12th I wrote of the announcement and subsequent release of the F5 device package for Cisco APIC. A big day for both organizations, bringing to the world a partnership able to complete the SDN vision by way of managing both low-level...
There is a difference. One is strategic, one is tactical. One lays the foundation for the future, the other sweeps the past under the rug. There is a move (again) in technology that pits consolidation as the be-all and end-all of tactical...
What is human latency? No, I’m not referring to how quick you can pull a table cloth - something my mother insisted I stop trying, and failing miserably at, at a young age. In technology circles, human latency refers to the delays incurred when...
I'm sure there are few people who have escaped some form of reporting or metrics collection in their careers. Pondering my various roles and responsibilities for a moment, I think I've measured almost everything: SPAM emails caught,...
Microservices. Service-oriented, but not SOA, this architecture is becoming more common as mobility and time to market drives up the ante in this high stakes game of applications. But just what are microservices? If you want a more complete and...
#DevOps #SDN We keep saying that, does it mean what you think it means? Operationalization (which is really hard to say, go ahead - try it a few times) is a concept that crosses the lines between trends and technologies. Both SDN and DevOps...
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...
Make sure you grab a tissue, because you will literally weep when you read the awesome content so prominently and consistently delivered in our community.  And, even if you don't weep uncontrollably, you'll at least work up a couple...
#SDN #DDoS #infosec Integration and collaboration is the secret sauce to breaking down barriers between security and networking  Most of the focus of SDN apps has been, to date, on taking layer 4-7 services and making them into extensions...