After the above introduction, it is not difficult to find that SDN has evolved its own system from a short period of ten years, extending from the data center to the WAN, so as to extend to the entire network, including edge devices in the network branch. Now SDN has two small brothers, SD-WAN and SD-branch. I believe that there will be more brothers in the future, and the SDN technology will become more and more abundant and more grounded.
SDN will no longer be an Ethernet network technology, but all network protocols rely on its development technology, such as storage networks. The concept of software definition has been introduced early, and almost all software systems are defined with software. related. The SDX concept is also taking root in an increasingly wide network, and the family size of SDX has grown larger and larger. SDN technology is a global and disruptive network transformation technology. It uses IT technology to transform traditional closed networks, which brings opportunities for network development.
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