Change is the only constant. Except that it isn’t; constant that is. We are seeing changes to IT services, infrastructure, eco-systems, and business models, with consequent demands and expectations that we have not witnessed before. Cisco is responding to all of this with new technologies for the DevOps community, including APIs, development tools, training and more, all of which I discuss below.
The Economist likens this to the Cambrian era that saw the multiplication of life forms that populate our world today: “… this time is … different, in an important way. Today’s entrepreneurial boom is based on more solid foundations than the 1990s internet bubble, which makes it more likely to continue for the foreseeable future.”
What has made this possible, which the Economist illustrates with a variety of examples, is the ubiquity of communications and open source platforms in a “cloud” environment. The Economist lists these elements:
- …snippets of code that can be copied free from the internet, along with easy-to-learn programming frameworks (such as Ruby on Rails).
- … services for … sharing code (GitHub) …
- … “application programming interfaces” (APIs), digital plugs that are multiplying rapidly …
- … “platforms”—services that can host startups’ offerings (Amazon’s cloud computing), distribute them (Apple’s App Store) and market them (Facebook, Twitter).
- … the internet, the mother of all platforms, which is now fast, universal and wireless.
What has also changed is that the IT stack is, in effect, collapsing. The “separation of concerns”, that kept the network infrastructure distinct from the applications running over it, is being whittled away. In October 2013 we teamed up Read More »
Tags: #ciscochampion, #CLUS, ADN, APIs, Cisco onePK, Cisco Open Network Environment, ciscolive, open network, Open Network Environment, SDLC, SDN, Software Development Lifecycle
By Brian Walsh, Service Provider Mobility Senior Marketing Manager
Among the discussions we had with global Mobile Service Providers in Barcelona at MWC 2014, here’s something that was certainly NOT breaking news: in the face of relentless growth of mobile data usage (see Cisco VNI), a top imperative expressed was to drive profitability by monetizing new opportunities.
What’s unfortunate is that the challenges continue to grow. Over-the-Top (OTT) competition continues to preempt new Service Provider (SP) services initiatives. New revenue partnerships with OTT and Content Providers remain elusive. And SP’s see more and more new sources of services substitution challenging their legacy voice & messaging services, for example, the WhatsApp move into voice services.
Of course, Service Providers also want to Read More »
Tags: mobile, mobility, monetization, network, Open Network Environment, ott, quantum, Service Provider
Would SDN, by any other name, still smell as sweet?
Perhaps I’m in the minority that is still frustrated by this, but as a marketing person who is tasked with explaining technology and solutions to customers and prospects, I feel hamstrung by a lack of a widely agreed upon definition of what is and is not “SDN” still. This usually comes up in discussions about our new Application Centric Infrastructure (ACI), and how it compares to traditional SDN concepts, as well as alternative approaches, such as overlay networks advocated by VMware.
The topic came up again this week with a NetworkWorld article in which the head of VMware’s network virtualization business is now saying, “SDN will never happen” (our rebuttal). Well, what is happening, if it’s not SDN? Or just because the technology has evolved, do we need to create a new term just because some early assumptions the industry made have changed? As we start out a new year, I thought it a good time to try and reframe the definition, and look at how the trends in SDN may be shaping up to extend the concept into new areas.
Why do customers need SDN?
By early 2012, there was so much hype and expectations around Software Defined Networking, focused on the ability to “program” the network, that real customer use cases and the killer SDN app was lost in the conversation. But what slowly emerged, that is driving all the investment, pilots and product designs is a much better way to manage the data center and cloud network, and to automate IT tasks so that the infrastructure could respond dynamically to rapidly changing business conditions and requirements. The “intelligence” to make all that happen is moving from the network devices and device management consoles, to centralized policy-management platforms, orchestration tools and cloud-managers.
What’s caused the biggest evolution in SDN is the realization that very few organizations really have the desire, skills and incentives to write a new class of applications to a published API to program the network. These users are outlying use cases compared to the vast majority of organizations just looking to automate IT tasks, accelerate application deployment, make their cloud networks more flexible, and better align their IT infrastructure with business requirements. The focus has shifted from SDN being an open API/controller platform, to a platform capable of hosting a myriad of orchestration and IT workflow automation solutions that drive customers to their end goal. To that end, ACI is meeting all those objectives, and in more advanced and innovative ways than earlier SDN approaches.
Read More »
Tags: ACI, Cisco ONE, Open Daylight, Open Network Environment, OpenFlow, OpenStack, SDN, software defined networking, XNC
Despite all the buzz about software-defined networking (SDN), many organizations don’t yet have a clear idea of how it will benefit them. In this blog, I’ll tackle the what and why of SDN, and explain the different approaches you can consider.
What: A Disruptive Approach to Network Control
For the last quarter century, network devices have performed two types of processing:
- The data plane looks at a routing table to decide where to forward packets. This processing takes place in dedicated hardware ASICs.
- The control plane takes care of everything else, such as spanning tree, AAA, exporting NetFlow statistics, SNMP, and more. The control plane is implemented in software, and you can think of it as the brains of the network element.
So, if your network includes 200, 2000, or 20,000 network devices, that means you’re managing 200, 2000, or 20,000 control planes and keeping all of them up to date. Read More »
Tags: Cisco ONE, Open Network Environment, OpenFlow, OpenStack, SDN, software defined network, virtual network overlay
In our last blog on “Advanced Flow Control” we used the metaphor of a three-dimensional collection of intersecting highways of many different kinds with a wide array of vehicles carrying various types of passengers to represent the Internet of Everything (IoE). The IoE concept has come a long way since it was first coined by the Auto-ID Center. Today the concept has broadened into a catch all for current and future network-connected endpoints, from smart meters to vending machines, security cameras, all forms of transportation, and consumer electronics ─ not to mention PCs, tablets, and smartphones. People with electronic tags will one day be connected to the IoE to monitor their health. Many dogs and cats already have chips for location tracking. The opportunity for new services will be unlimited and customers will expect instant access to networking resources to launch, alter, or eliminate those services.
Instant Resources for a Spontaneous World Read More »
Tags: advanced flow control, Cisco ONE, Internet of Everything, IoE, Open Network Environment, programmable network, SDN, Service Provider