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NFV vs SDN







                Category                                         SDN                                              NFV



                                         Separation of control and data,                         Relocation of network

        Reason for Being                 centralization of control and                           functions from dedicated
                                         programmability of network                              appliances to generic servers



        Target Location                  Campus, data center / cloud                             Service provider network


                                                                                                 Commodity servers and
        Target Devices                   Commodity servers and switches
                                                                                                 switches


                                                                                                 Routers, firewalls, gateways,

        Initial Applications             Cloud orchestration and networking                      CDN, WAN accelerators, SLA
                                                                                                 assurance


        New Protocols                    OpenFlow                                                None yet



        Formalization                    Open Networking Forum (ONF)                             ETSI NFV Working Group


          https://www.sdxcentral.com/articles/contributed/nfv-and-sdn-whats-the-difference/2013/03/


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