Ntwrk fnctns vrtlztn (NFV) s ntwrk rchtctr cncpt tht lvrgs T vrtlztn tchnlgs t vrtlz ntr clsss f ntwrk nd fnctns nt bldng blcks tht my cnnct, r chn tgthr, t crt nd dlvr cmmnctn srvcs.
NFV rls pn trdtnl srvr-vrtlztn tchnqs sch s ths sd n ntrprs T. vrtlzd ntwrk fnctn, r VNF, s mplmntd wthn n r mr vrtl mchns r cntnrs rnnng dffrnt sftwr nd prcsss, n tp f cmmrcl ff th shlf (CTS) hgh-vlm srvrs, swtchs nd strg dvcs, r vn cld cmptng nfrstrctr, nstd f hvng cstm hrdwr pplncs fr ch ntwrk fnctn thrby vdng vndr lck-n.
Fr xmpl, vrtl sssn brdr cntrllr cld b dplyd t prtct ntwrk wtht th typcl cst nd cmplxty f btnng nd nstllng physcl ntwrk prtctn nts. thr xmpls f NFV ncld vrtlzd ld blncrs, frwlls, ntrsn dtctn dvcs nd WN cclrtrs t nm fw.
Th dcplng f th ntwrk fnctn sftwr frm th cstmzd hrdwr pltfrm rlzs flxbl ntwrk rchtctr tht nbls gl ntwrk mngmnt, fst nw srvc rll ts wth sgnfcnt rdctn n CPX nd PX.