Transcription of VERSION 2.01 1 Software-Defined Networking: A …
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VERSION 1. software -Defined Networking: A Comprehensive Survey Diego Kreutz, Member, IEEE, Fernando M. V. Ramos, Member, IEEE, Paulo Verissimo, Fellow, IEEE, Christian Esteve Rothenberg, Member, IEEE, Siamak Azodolmolky, Senior Member, IEEE, and Steve Uhlig, Member, IEEE. Abstract The Internet has led to the creation of a digital Index Terms software -defined networking, OpenFlow, net- society, where (almost) everything is connected and is accessible work virtualization, network operating systems, programmable from anywhere. However, despite their widespread adoption, networks, network hypervisor, programming languages, flow- [ ] 8 Oct 2014. traditional IP networks are complex and very hard to manage. based networking, scalability, dependability, carrier-grade net- It is both difficult to configure the network according to pre- works, software -defined environments.
approach to change the Internet architecture (e.g., replacing IP), is regarded as a daunting task – simply not feasible in practice [2], [3]. Ultimately, this situation has inflated the capital and operational expenses of running an IP network. Software-Defined Networking (SDN) [4], [5] is an emerging
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