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The Origin and Evolution of Open Programmable Networks and SDN

机译：开放可编程网络和SDN的起源和演变

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摘要

The term "SDN" represents a significant evolution in networking technology and draws attention and support from network operators, vendors, researchers and industry regulators. Contrary to popular belief that SDN is a recent invention, or is related only to IP technologies, the concept of network programmability and control/data plane separation has its roots in the 1960s and 1970s when the telephone network started its transition to digital. Many iterations followed, leading to applications in packet networks and today's Internet. In this article, we review a number of early works on network programmability that illustrate how several features of SDN emerged progressively over several decades. Our review starts from the early concepts of network control in the telephone network and continues to examine a prolific period of research advancements in the 1990s and early 2000s that led to a number of startup companies that followed, IEEE's own efforts in standardizing network programmability, and finally the arrival of the OpenFlow standard. We study the importance of this architectural transformation and its influences on modern cloud computing and next-generation networking.
机译：术语“SDN”代表了网络技术的重要演变，并从网络运营商，供应商，研究人员和行业监管机构中汲取关注和支持。与最普遍的信念相反，SDN是一个最近的发明，或者仅与知识产权技术相关，网络可编程性和控制/数据平面分离的概念在20世纪60年代和1970年代的根源是当电话网络开始转移到数字时。许多迭代术后，导致数据包网络和今天的互联网中的应用程序。在本文中，我们审查了一些关于网络可编程性的早期作品，说明了几十年来的SDN逐步出现了几个特征。我们的评论从电话网络中的网络控制的早期概念开始，继续检查20世纪90年代和2000年初的一系列研究进步，导致了一些初创公司，其遵循IEEE在标准化网络可编程性方面的努力，以及最后到达OpenFlow标准。我们研究了这种架构转型的重要性及其对现代云计算和下一代网络的影响。

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