I am more rare, or buzzword recently burst? Do not be misunderstood, of course, I know the IT industry at a crazy pace of innovation is not surprising, but it seems that the current technological evolution faster than ever before, and is undergoing fundamental changes. We can attribute it to one thing: the cloud. Cloud computing is by no means new, but it has been unusually active since 2014. From software to hardware, cloud computing is changing the way data centers deploy, develop, and consume everything, and it is rapidly and thoroughly subverting the way businesses deliver products and services to their customers. Let's take a quick look at a few top technologies and discuss the reasons why you will eventually adopt them. Software Defined Networking (SDN) - What exactly is it? The definition of SDN is numerous, mainly because it is a relatively new technology, meaning different for different vendors. Before the market matures, confusion will persist for at least a period of time. The SDN separates the system (control plane) that decides where traffic goes to and the underlying system (data plane) that forwards traffic to the selected destination. Investors and vendors of these systems think that simplifies the network. Through the controller , network administrators can quickly and easily determine how the underlying systems (switches, routers) at the forwarding plane control traffic. SDN needs some way for the control plane to communicate with the data plane. OpenFlow is just such a mechanism, people often mistakenly equate it with SDN, but other mechanisms are also consistent with the corresponding concept. By separating the control plane from the forwarding plane, data centers can reduce costs and provide better agility. Who does not want this? This is achieved through the following: 1. Reduce dependency on expensive dedicated ASIC network hardware and associated pay-as-you-go models, often leading to over-provisioning. In other words, you can get more value from your network. 2.SDN provides a higher degree of programmability, network expansion, system design and management easier. 3. Agility and flexibility. Everyone wants, wants good agility and flexibility, and SDN can be both. SDN enables organizations to quickly deploy new infrastructures, applications, and servers much faster than traditional networks. OpenFlow People often mix OpenFlow and SDN, but they are not the same. OpenFlow is just one component of the entire SDN architecture and is an open standard for implementing a communications protocol that enables the control plane to interact with the forwarding plane. As an open standard, it is controlled by the OpenFlowConsortium. OpenFlow is not the only (or under development) SDN-based protocol available today. The Open Source Network OS (or ONOS), led by The Open Network Worker Lab (ON.Lab), is another option. Network Function Virtualization (NFV) This is another term that has a different meaning to different people, depending on the industry. In our case, we are focusing on what it means for the telecommunications industry. To understand what drives NVF, let's take a look at how the telecommunications industry traditionally deployed its own network. For more than 30 years, telcos have relied on customized systems, some of which have developed their own ASICs (via Cisco, F5 or Juniper) and proprietary operating systems (such as Cisco IOS) and then used the technology in base stations, routers and Ethernet Network switches, all of these products are specifically optimized for their applications. Of course, exclusive means expensive, slow development. Fast forward to today's NFV initiative, pioneered by several major telecom service providers. The value of NFV is to create a standardized way of virtualizing important telecom applications, fundamentally changing how telecom networks are built and managed. With this, NFV enables these applications to run on industry-standard servers. This means substantial cost savings and greater flexibility than ever before. Making NVF work with off-the-shelf (COTS) equipment is a ground-breaking technological advancement that includes SDN, faster fabric (40Gb Ethernet), and more powerful processors.
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