Software-defined network of three brothers

Software Defined Network (SDN) is a new type of network architecture that implements separate network control and forwarding, forms a logically centralized unified controller, and then opens a software-programmable interface for service calls on the controller to achieve flexible configuration of the network. the goal of. In the cloud computing data center, providing virtual resource services is its most important technical realization, and the network is also provided as a service to customers. The network needs to provide dynamic, on-demand, isolated network environment and custom network service chain connection services for different users and applications. These are the traditional network architectures that cannot be met, and SDN was born because of this.

Speaking of SDN, I have to mention Professor Nick from Stanford University. SDN originated from the Clean Slate project of Professor Nick’s team. In 2006, the team of Professor Nick’s team first proposed a logically centralized enterprise security solution that opened the door to centralized control to solve security problems. In 2007, Professor Nick and his team members founded Nicira in Silicon Valley, the first startup in SDN history. In 2011, the Open Network Foundation ONF was born and an open network summit was held. SDN has been in existence for only ten years since its birth. The real application in the network was in 2012, and it was deployed in the data center of Google. Although SDN was not born for a long time, it has been greatly developed. SDN-related startups have sprung up. Traditional network equipment vendors have also thrown olive branches to SDN. Major data centers and network operators have launched SDN.

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