SDN to prevent seven of cognitive biases

Editor's note: WhenSDN gets attention and develops research, there are still deviations from its understanding, which comes down to seven of deviations.

In the past few years, theSDN concept has gained great attention in the industry. Most enterprises are aware of the existence of the technology and are systematically implementing it or evaluating it in a planned manner. At the same time, however, there are still widespread misconceptions about the technology, which comes down to a total of seven common misunderstandings.

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SDN is just a matter of cloud and service provider 12 to sdn implementers are mostly cloud service providers and enterprises using large-scale network systems, but sdn , including agility, cost advantages, management mechanisms, and innovations, are fully applicable to mainstream vendors and even mid-sized customers.

SDN only applies to data center sdn technology is explored for or around data centers (for example, " I was able to launch a set of virtual machine systems in a few minutes, but why network / firewall changes in a few weeks ") , wan and Campus network. It should be emphasized that wan is the culprit that has led many customers to spend weeks or even months in broadband configuration, And the implementation cost is very high, not to mention the enterprise bandwidth level per 2.9 year will be doubled, and manage the hybrid Span style= "font-family: ' Times New Roman '; font-size:16px;" The difficulty of >wan is also quite high.

The white box switch is This misunderstanding was also ranked third last year. Whether or not to use

SDN is the only way to achieve network agility SDN has achieved datacenter agility. sdn certainly improves the agility of the network, but there are many ways to achieve agility, including automation, Orchestration mechanisms, and programmable systems. Also, do not look at the sdn , which can bring much more real value from the agile aspect.

programmable structure is This misunderstanding occurred on last year's list, as many of them specialize in providing a programmable Ethernet system (by using api Suppliers often describe them as sdn . These are usually excellent products that have the ability to solve problems effectively. If you are starting to build a new network of data centers, we recommend that you take this type of programmability. But all in all, the programmable structure is not sdn .

SDN is just a network upgrade solution sdn is not a common scenario that we can introduce into the business environment on a large scale. / demand is deployed in a speculative or pragmatic manner. You may recall the last century 90 when we deployed the load balancing mechanism. It is not the time of the past that needs to be stones, and what really needs to be addressed are specific needs such as size and elasticity, such as public-facing web sites. In addition, we have been able to deploy new user-oriented applications using a standardized mechanism with load balancing development results. Generally speaking, we should use the same way to guide

7. the programmer will be in control of the network . Network technicians tend to have a whiff of coolness in their minds when they hear of SDN as "a programmable feature of the network environment." In the context of the rapid development of DevOps , typical network operators often have the idea that "the last thing I want to see is the developer's control of the network system." However,SDN is not the first wave of gold rush. Application developers can write APIsfor controllers through pre-defined templates or blueprints, which are typically configured by network technicians.

Reprinted from: China Information Industry Network

SDN to prevent seven of cognitive biases