{"id":1999,"date":"2023-08-16T21:41:22","date_gmt":"2023-08-16T21:41:22","guid":{"rendered":"https:\/\/www.xadv.eu\/?p=1999"},"modified":"2024-04-30T18:23:51","modified_gmt":"2024-04-30T18:23:51","slug":"nfv-network-function-virtualization","status":"publish","type":"post","link":"https:\/\/www.xadv.eu\/hu\/2023\/08\/16\/nfv-network-function-virtualization\/","title":{"rendered":"NFV &#8211; Network Function Virtualization"},"content":{"rendered":"<p>A Network Function Virtualization (NFV) a h\u00e1l\u00f3zati funkci\u00f3k virtualiz\u00e1ci\u00f3ja. Egy olyan architekt\u00fara, amely lehet\u0151v\u00e9 teszi a h\u00e1l\u00f3zati funkci\u00f3k \u00e9s a c\u00e9lhardverek sz\u00e9tv\u00e1laszt\u00e1s\u00e1t, \u00e9s virtualiz\u00e1lt szabv\u00e1nyos informatikai hardveren vagy felh\u0151alap\u00fa architekt\u00far\u00e1n t\u00f6rt\u00e9n\u0151 felhaszn\u00e1l\u00e1s\u00e1t.<\/p>\n\n\n\n<p>Az NFV az Eur\u00f3pai T\u00e1vk\u00f6zl\u00e9si Szabv\u00e1ny\u00fcgyi Int\u00e9zet (ETSI) fejleszt\u00e9se. Az NFV architekt\u00fara  cs\u00f6kkenti a h\u00e1l\u00f3zat k\u00f6lts\u00e9geit (TCO), gyors innov\u00e1ci\u00f3t \u00e9s h\u00e1l\u00f3zat telep\u00edt\u00e9st, valamint cs\u00facsforgalmi \u00f3r\u00e1kban b\u0151v\u00edthet\u0151s\u00e9get biztos\u00edt.<\/p>\n\n\n\n<p>  <\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Az NFV architekt\u00fara k\u00f6vetelm\u00e9nyei<\/h4>\n\n\n\n<p>Az ETSI l\u00e9trehozta a speci\u00e1lis NFV Industry Specification Group (ISG) csoportot, hogy az architekt\u00fara k\u00f6vetelm\u00e9nyeit meghat\u00e1rozza olyan technikai kih\u00edv\u00e1sok kezel\u00e9s\u00e9re, mint:<\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:100%\">\n<ul class=\"wp-block-list\">\n<li>A virtualiz\u00e1lt h\u00e1l\u00f3zati platformok egyszer\u0171bb m\u0171k\u00f6d\u00e9s\u00e9nek biztos\u00edt\u00e1sa.<\/li>\n\n\n\n<li>Nagy teljes\u00edtm\u00e9ny\u0171 virtualiz\u00e1lt h\u00e1l\u00f3zati eszk\u00f6z\u00f6k l\u00e9trehoz\u00e1sa, amelyek hordozhat\u00f3k k\u00fcl\u00f6nb\u00f6z\u0151 hardvergy\u00e1rt\u00f3k k\u00f6z\u00f6tt \u00e9s egy\u00fcttm\u0171k\u00f6dnek k\u00fcl\u00f6nb\u00f6z\u0151 hipervizorokkal.<\/li>\n\n\n\n<li>Egy\u00fcttm\u0171k\u00f6d\u00e9s a hagyom\u00e1nyos, gy\u00e1rt\u00f3i hardverplatformokkal, \u00e9s hat\u00e9kony migr\u00e1ci\u00f3s \u00fatvonal biztos\u00edt\u00e1sa a teljesen virtualiz\u00e1lt h\u00e1l\u00f3zati platformok fel\u00e9, amelyek \u00fajrahaszn\u00e1lj\u00e1k a h\u00e1l\u00f3zat\u00fczemeltet\u0151i BSS-t \u00e9s OSS-t.<\/li>\n\n\n\n<li>Virtu\u00e1lis h\u00e1l\u00f3zati eszk\u00f6z\u00f6k kezel\u00e9se \u00e9s orchestr\u00e1l\u00e1sa. A biztons\u00e1gos m\u0171k\u00f6d\u00e9s megteremt\u00e9se, \u00e9s a hib\u00e1s konfigur\u00e1ci\u00f3 elker\u00fcl\u00e9se.<\/li>\n\n\n\n<li>A h\u00e1l\u00f3zat stabilit\u00e1s\u00e1nak \u00e9s szolg\u00e1ltat\u00e1si szintj\u00e9nek fenntart\u00e1sa min\u0151s\u00e9groml\u00e1s n\u00e9lk\u00fcl az eszk\u00f6z\u00f6k terhel\u00e9se \u00e9s \u00e1thelyez\u00e9se sor\u00e1n.<\/li>\n\n\n\n<li>A megfelel\u0151 szint\u0171 ellen\u00e1ll\u00f3 k\u00e9pess\u00e9g biztos\u00edt\u00e1sa hardver- \u00e9s szoftverhib\u00e1kkal szemben.<\/li>\n\n\n\n<li>Lehet\u0151s\u00e9g virtu\u00e1lis h\u00e1l\u00f3zati funkci\u00f3k l\u00e9trehoz\u00e1s\u00e1ra, b\u00e1rmilyen hypervisor \u00e9s hardver konfigur\u00e1ci\u00f3n, valamint \u201emenet k\u00f6zbeni\u201d integr\u00e1l\u00e1s a h\u00e1l\u00f3zat \u00fczemeltet\u0151k megl\u00e9v\u0151 fel\u00fcgyeleti \u00e9s orchestr\u00e1ci\u00f3s rendszereibe.<\/li>\n\n\n\n<li>A j\u00f6v\u0151beli m\u0171szaki k\u00f6vetelm\u00e9nyek \u00e9s szabv\u00e1nyok elemz\u00e9se a vonatkoz\u00f3 szabv\u00e1ny\u00fcgyi szervezetek \u00e9s az ETSI \u00e1ltal vagy m\u00e1s ad hoc szabv\u00e1nyfejleszt\u0151 szervezetekn\u00e9l.<\/li>\n\n\n\n<li>Az energiafogyaszt\u00e1s minimaliz\u00e1l\u00e1sa<\/li>\n<\/ul>\n<\/div>\n<\/div>\n\n\n\n<h4 class=\"wp-block-heading\">H\u00e1l\u00f3zati Funkci\u00f3k Virtualiz\u00e1ci\u00f3s (NFV) Architekt\u00far\u00e1ja<\/h4>\n\n\n\n<p>Az NFV Architekt\u00far\u00e1ja h\u00e1rom f\u0151 elemb\u0151l \u00e1ll:<\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:100%\">\n<ul class=\"wp-block-list\">\n<li>NFVI<\/li>\n\n\n\n<li>VNF<\/li>\n\n\n\n<li>MANO<\/li>\n<\/ul>\n<\/div>\n<\/div>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large is-resized\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"876\" src=\"https:\/\/www.xadv.eu\/wp-content\/uploads\/2023\/08\/image-31-1024x876.png\" alt=\"\" class=\"wp-image-2000\" style=\"width:500px;height:undefinedpx\" srcset=\"https:\/\/www.xadv.eu\/wp-content\/uploads\/2023\/08\/image-31-1024x876.png 1024w, https:\/\/www.xadv.eu\/wp-content\/uploads\/2023\/08\/image-31-300x257.png 300w, https:\/\/www.xadv.eu\/wp-content\/uploads\/2023\/08\/image-31-768x657.png 768w, https:\/\/www.xadv.eu\/wp-content\/uploads\/2023\/08\/image-31-14x12.png 14w, https:\/\/www.xadv.eu\/wp-content\/uploads\/2023\/08\/image-31.png 1275w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"has-small-font-size\">Sorce: ETSI<\/p>\n\n\n\n<p class=\"has-text-align-center has-small-font-size\"><strong>1.\u00e1bra. Network Function Virtualization Architekt\u00fara<\/strong><\/p>\n\n\n\n<h5 class=\"wp-block-heading\">Network Functions Virtualization Infrastructure  (NFVI):<\/h5>\n\n\n\n<p>A Network Functions Virtualization Infrastructure (NFVI) avagy H\u00e1l\u00f3zati funkci\u00f3k virtualiz\u00e1ci\u00f3s infrastrukt\u00fara az NFV alapr\u00e9tege. Fizikai szerverek, t\u00e1rol\u00f3t\u00f6mb\u00f6k \u00e9s h\u00e1l\u00f3zati csom\u00f3pontok, (pl: rooters, swiches, firewalls, stb). Hipervizor (pl:  VMware ESXi, KVM, stb.) haszn\u00e1lat\u00e1val biztos\u00edtja a virtu\u00e1lis sz\u00e1m\u00edt\u00e1si, t\u00e1rol\u00e1si \u00e9s h\u00e1l\u00f3zati infrastrukt\u00far\u00e1t, amelyen a Virtu\u00e1lis Network Funkci\u00f3k (VNF-ek) telep\u00edt\u00e9sre \u00e9s v\u00e9grehajt\u00e1sra ker\u00fclnek.<\/p>\n\n\n\n<p>A virtu\u00e1lis infrastrukt\u00fara kialakithat\u00f3 n\u00e9h\u00e1ny virtualiz\u00e1ci\u00f3s technol\u00f3gia haszn\u00e1lat\u00e1val:<\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:100%\">\n<ul class=\"wp-block-list\">\n<li>Virtual Computing: VMware vSphere, VMware Cloud NFV, KVM, Xen<\/li>\n\n\n\n<li>Virtual Storage: VMware vSAN, Ceph<\/li>\n\n\n\n<li>Virtual Networking: VMware NSX, Neutron, Open Day Light<\/li>\n<\/ul>\n<\/div>\n<\/div>\n\n\n\n<p>Az NFVI-Node-ok, eszk\u00f6z\u00f6k t\u00f6bb helyen \u00e9s z\u00f3n\u00e1ban telep\u00edthet\u0151k a magas rendelkez\u00e9sre \u00e1ll\u00e1s\u00fa szolg\u00e1ltat\u00e1sok biztos\u00edt\u00e1sa \u00e9s a munkaterhel\u00e9si k\u00f6vetelm\u00e9nyek megost\u00e9sa \u00e9s t\u00e1mogat\u00e1sa \u00e9rdek\u00e9ben. Az \u00fczemeltet\u0151k v\u00e1laszthatnak a prefer\u00e1lt sz\u00e1ll\u00edt\u00f3k szabv\u00e1nyos hardverei k\u00f6z\u00fcl, (pl: HPE, DELL, IBM, Cisco, Juniper stb), \u00e9s a hardvereket b\u00e1rmikor upgradelhetik, friss\u00edthetik.<\/p>\n\n\n\n<h5 class=\"wp-block-heading\">Management \u00e9s Orchestration (MANO):<\/h5>\n\n\n\n<p>A Management and Orchestration (MANO) az infrastruktur\u00e1lis er\u0151forr\u00e1sok \u00f6sszehangol\u00e1s\u00e1t \u00e9s managel\u00e9s\u00e9t foglalja mag\u00e1ban, a hardveren, \u00e9s a szoftveresen. A MANO tov\u00e1bbi h\u00e1rom r\u00e9szre oszthat\u00f3:<\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:100%\">\n<ul class=\"wp-block-list\">\n<li>Virtual Infrastructure Manager (VIM)<\/li>\n\n\n\n<li>Virtual Network Functions Manager (VNFM)<\/li>\n\n\n\n<li>NFV Orchestrator (NFVO)<\/li>\n<\/ul>\n<\/div>\n<\/div>\n\n\n\n<h5 class=\"wp-block-heading\">Virtualized Infrastructure Manager (VIM):<\/h5>\n\n\n\n<p>A Virtualiz\u00e1lt infrastrukt\u00fara-kezel\u0151, avagy Virtualized Infrastructure Manager (VIM) felel\u0151s az NFVI sz\u00e1m\u00edt\u00e1si, t\u00e1rol\u00e1si \u00e9s h\u00e1l\u00f3zati er\u0151forr\u00e1sainak kezel\u00e9s\u00e9\u00e9rt \u00e9s fel\u00fcgyelet\u00e9\u00e9rt. Ezt a funkci\u00f3t a  &#8220;northbound&#8221; fel\u00e9 a VNFM \u00e9s az NFV Orchestrator sz\u00e1m\u00e1ra teszi el\u00e9rhet\u0151v\u00e9, \u00edgy azok telep\u00edthetik \u00e9s kezelhetik a VNF-eket. Ugyanezt a funkcionalit\u00e1st teszi el\u00e9rhet\u0151v\u00e9 a &#8220;southbound&#8221; ir\u00e1nyban az NFVI hipervizorainak \u00e9s SDN-vez\u00e9rl\u0151inek. A VIM az NFVI lelt\u00e1r\u00e1t is vezeti valamint biztos\u00edtja az API-t, amely lehet\u0151v\u00e9 teszi a VNFM sz\u00e1m\u00e1ra az \u00f6sszes VNF teljes \u00e9letciklus\u00e1nak kezel\u00e9s\u00e9t. A VMware vCenter a Virtual Infrastructure Manager (VIM) egyik j\u00f3 p\u00e9ld\u00e1ja.<\/p>\n\n\n\n<h5 class=\"wp-block-heading\">Virtual Network Functions Manager (VNFM):<\/h5>\n\n\n\n<p>A Virtual Network Functions Manager, avagy Virtu\u00e1lis H\u00e1l\u00f3zati Funkc\u00f3 Manager (VNFM) a VNF-ek \u00e9letciklus\u00e1nak vez\u00e9rl\u00e9s\u00e9re, kezel\u00e9s\u00e9re \u00e9s figyel\u00e9s\u00e9re szolg\u00e1l. Az Element Manager System-et (EMS) \u00e9s\/vagy a h\u00e1l\u00f3zatkezel\u0151 rendszert (NMS) is vez\u00e9rli. A VNF Manager az NFV Orchestrator ir\u00e1ny\u00edt\u00e1sa alatt m\u0171k\u00f6dik. A VNFM n\u00e9h\u00e1ny kulcsfontoss\u00e1g\u00fa feladata:<\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:100%\">\n<ul class=\"wp-block-list\">\n<li>Instantiation of VNFs<\/li>\n\n\n\n<li>Configuration of VNFs<\/li>\n\n\n\n<li>Start of VNFs<\/li>\n\n\n\n<li>Stop of VNFs<\/li>\n\n\n\n<li>Scaling in\/out of VNFs<\/li>\n\n\n\n<li>Updating and\/or upgrading VNFs<\/li>\n\n\n\n<li>Termination of VNFs<\/li>\n<\/ul>\n<\/div>\n<\/div>\n\n\n\n<h5 class=\"wp-block-heading\">Network Function Virtualization Orchestrator (NFVO):<\/h5>\n\n\n\n<p>A Network Function Virtualization Orchestrator (NFVO) vagy az NFV Orchestrator f\u0151k\u00e9nt a VNF-ek \u00e9s h\u00e1l\u00f3zati szolg\u00e1ltat\u00e1sok bevezet\u00e9s\u00e9\u00e9rt felel\u0151s, amelyeket ugyanazok vagy k\u00fcl\u00f6nb\u00f6z\u0151 VNF-kezel\u0151k kezelnek, \u00e9s ugyanazon vagy k\u00fcl\u00f6nb\u00f6z\u0151 NFVI r\u00e9szei.<\/p>\n\n\n\n<p>Az NFVO k\u00f6zvetlen\u00fcl kommunik\u00e1l a VIM-ekkel a &#8220;northbound&#8221; interf\u00e9szen kereszt\u00fcl, \u00e9s koordin\u00e1lja, enged\u00e9lyezi, felszabad\u00edtja \u00e9s lek\u00f6ti a virtu\u00e1lis sz\u00e1m\u00edt\u00e1si, t\u00e1rol\u00e1si \u00e9s h\u00e1l\u00f3zati er\u0151forr\u00e1sokat egyetlen vagy t\u00f6bb adatk\u00f6zpont k\u00f6z\u00f6tt. Ezt  er\u0151forr\u00e1s-orchestr\u00e1l\u00e1snak is nevezik.<\/p>\n\n\n\n<p>A Network Functions Virtualization Orchestrator m\u00e1sik funkci\u00f3ja a Service Orchestration, amely a h\u00e1l\u00f3zati szolg\u00e1ltat\u00e1sok \u00e9s a VNF-ek \u00e9letciklus\u00e1nak kezel\u00e9s\u00e9re szolg\u00e1l. Az al\u00e1bbi funkci\u00f3kat biztos\u00edtja:<\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:100%\">\n<ul class=\"wp-block-list\">\n<li>Onboarding of Network Services, VNFs<\/li>\n\n\n\n<li>Instantiation, Scaling in\/out, and Termination of Network Services and VNFs<\/li>\n\n\n\n<li>Monitoring and Auto-healing of VNFs<\/li>\n<\/ul>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>A Network Function Virtualization (NFV) a h\u00e1l\u00f3zati funkci\u00f3k virtualiz\u00e1ci\u00f3ja. Egy olyan architekt\u00fara, amely lehet\u0151v\u00e9 teszi a h\u00e1l\u00f3zati funkci\u00f3k \u00e9s a c\u00e9lhardverek sz\u00e9tv\u00e1laszt\u00e1s\u00e1t, \u00e9s virtualiz\u00e1lt szabv\u00e1nyos informatikai hardveren vagy felh\u0151alap\u00fa architekt\u00far\u00e1n t\u00f6rt\u00e9n\u0151 felhaszn\u00e1l\u00e1s\u00e1t. Az NFV az Eur\u00f3pai T\u00e1vk\u00f6zl\u00e9si Szabv\u00e1ny\u00fcgyi Int\u00e9zet (ETSI) fejleszt\u00e9se. Az NFV architekt\u00fara cs\u00f6kkenti a h\u00e1l\u00f3zat k\u00f6lts\u00e9geit (TCO), gyors innov\u00e1ci\u00f3t \u00e9s h\u00e1l\u00f3zat telep\u00edt\u00e9st, valamint &hellip;<\/p>\n<p class=\"read-more\"> <a class=\"\" href=\"https:\/\/www.xadv.eu\/hu\/2023\/08\/16\/nfv-network-function-virtualization\/\"> <span class=\"screen-reader-text\">NFV &#8211; Network Function Virtualization<\/span> Read More &raquo;<\/a><\/p>","protected":false},"author":1,"featured_media":2000,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","footnotes":""},"categories":[23,20],"tags":[72,68],"class_list":["post-1999","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-network-slicing","category-open-ran","tag-cloud-ran-en","tag-network-slicing-hu"],"_links":{"self":[{"href":"https:\/\/www.xadv.eu\/hu\/wp-json\/wp\/v2\/posts\/1999","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.xadv.eu\/hu\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.xadv.eu\/hu\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.xadv.eu\/hu\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.xadv.eu\/hu\/wp-json\/wp\/v2\/comments?post=1999"}],"version-history":[{"count":3,"href":"https:\/\/www.xadv.eu\/hu\/wp-json\/wp\/v2\/posts\/1999\/revisions"}],"predecessor-version":[{"id":2697,"href":"https:\/\/www.xadv.eu\/hu\/wp-json\/wp\/v2\/posts\/1999\/revisions\/2697"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.xadv.eu\/hu\/wp-json\/wp\/v2\/media\/2000"}],"wp:attachment":[{"href":"https:\/\/www.xadv.eu\/hu\/wp-json\/wp\/v2\/media?parent=1999"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.xadv.eu\/hu\/wp-json\/wp\/v2\/categories?post=1999"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.xadv.eu\/hu\/wp-json\/wp\/v2\/tags?post=1999"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}