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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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