{"id":198641,"date":"2023-05-15T07:30:00","date_gmt":"2023-05-15T07:30:00","guid":{"rendered":"https:\/\/datascientest.com\/?p=198641"},"modified":"2023-11-09T13:52:29","modified_gmt":"2023-11-09T13:52:29","slug":"network-load-balancing-tout-savoir","status":"publish","type":"post","link":"https:\/\/datascientest.com\/network-load-balancing-tout-savoir","title":{"rendered":"Network Load Balancing (NBL) : Qu&rsquo;est-ce que c&rsquo;est ? \u00c0 quoi \u00e7a sert ?"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"198641\" class=\"elementor elementor-198641\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-2e11820 e-flex e-con-boxed e-con\" data-id=\"2e11820\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;boxed&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-86207cc elementor-widget elementor-widget-heading\" data-id=\"86207cc\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.15.0 - 02-08-2023 *\/\n.elementor-heading-title{padding:0;margin:0;line-height:1}.elementor-widget-heading .elementor-heading-title[class*=elementor-size-]>a{color:inherit;font-size:inherit;line-height:inherit}.elementor-widget-heading .elementor-heading-title.elementor-size-small{font-size:15px}.elementor-widget-heading .elementor-heading-title.elementor-size-medium{font-size:19px}.elementor-widget-heading .elementor-heading-title.elementor-size-large{font-size:29px}.elementor-widget-heading .elementor-heading-title.elementor-size-xl{font-size:39px}.elementor-widget-heading .elementor-heading-title.elementor-size-xxl{font-size:59px}<\/style><h3 class=\"elementor-heading-title elementor-size-default\">Qu'est ce que le Network Load Balancing (NLB) ?<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-72b7608 elementor-widget elementor-widget-text-editor\" data-id=\"72b7608\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.15.0 - 02-08-2023 *\/\n.elementor-widget-text-editor.elementor-drop-cap-view-stacked .elementor-drop-cap{background-color:#69727d;color:#fff}.elementor-widget-text-editor.elementor-drop-cap-view-framed .elementor-drop-cap{color:#69727d;border:3px solid;background-color:transparent}.elementor-widget-text-editor:not(.elementor-drop-cap-view-default) .elementor-drop-cap{margin-top:8px}.elementor-widget-text-editor:not(.elementor-drop-cap-view-default) .elementor-drop-cap-letter{width:1em;height:1em}.elementor-widget-text-editor .elementor-drop-cap{float:left;text-align:center;line-height:1;font-size:50px}.elementor-widget-text-editor .elementor-drop-cap-letter{display:inline-block}<\/style>\t\t\t\t<p><span style=\"font-weight: 400;\">Lorsque vous naviguez sur Internet, il y a tout un processus sous-jacent enti\u00e8rement transparent pour vous. Ce processus est responsable de l\u2019<\/span><b>acheminement de vos requ\u00eates <\/b><span style=\"font-weight: 400;\">(recherches par exemple) vers le serveur distant <\/span><span style=\"font-weight: 400;\">\u2013 <\/span><span style=\"font-weight: 400;\">situ\u00e9 potentiellement \u00e0 l\u2019autre bout du monde <\/span><span style=\"font-weight: 400;\">\u2013<\/span><span style=\"font-weight: 400;\"> h\u00e9bergeant le site web. La r\u00e9ponse de ce serveur vous est ensuite restitu\u00e9e en un <\/span><b>temps tr\u00e8s court<\/b><span style=\"font-weight: 400;\">, et heureusement que ce d\u00e9lai n\u2019est pas fonction de la distance vous s\u00e9parant du serveur.<\/span><\/p><p><span style=\"font-weight: 400;\">La popularit\u00e9 du site pouvant s\u2019accro\u00eetre, et par la m\u00eame occasion son pic de trafic, il est imp\u00e9ratif que votre exp\u00e9rience utilisateur soit conserv\u00e9e. Ainsi, la question principale qui se pose est de savoir comment garantir une qualit\u00e9 et une disponibilit\u00e9 optimale et non alt\u00e9r\u00e9e. C\u2019est l\u00e0 qu\u2019intervient le <\/span><b>Network Load Balancing (NLB)<\/b><span style=\"font-weight: 400;\">.<\/span><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e252ffe elementor-widget elementor-widget-image\" data-id=\"e252ffe\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.15.0 - 02-08-2023 *\/\n.elementor-widget-image{text-align:center}.elementor-widget-image a{display:inline-block}.elementor-widget-image a img[src$=\".svg\"]{width:48px}.elementor-widget-image img{vertical-align:middle;display:inline-block}<\/style>\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"1368\" height=\"890\" src=\"https:\/\/datascientest.com\/wp-content\/uploads\/2023\/04\/image1-8.png\" class=\"attachment-full size-full wp-image-198644\" alt=\"\" loading=\"lazy\" srcset=\"https:\/\/datascientest.com\/wp-content\/uploads\/2023\/04\/image1-8.png 1368w, https:\/\/datascientest.com\/wp-content\/uploads\/2023\/04\/image1-8-300x195.png 300w, https:\/\/datascientest.com\/wp-content\/uploads\/2023\/04\/image1-8-1024x666.png 1024w, https:\/\/datascientest.com\/wp-content\/uploads\/2023\/04\/image1-8-768x500.png 768w\" sizes=\"(max-width: 1368px) 100vw, 1368px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-54e5d72 elementor-widget elementor-widget-text-editor\" data-id=\"54e5d72\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Certains sites web peuvent \u00eatre en mesure d\u2019absorber plusieurs millions de requ\u00eates par jour tout en \u00e9tant en mesure de restituer le contenu souhait\u00e9 (qu\u2019il s\u2019agisse de texte, vid\u00e9os, ou autres donn\u00e9es) de mani\u00e8re fiable.<\/span><\/p><p><span style=\"font-weight: 400;\">L\u2019<\/span><b>\u00e9quilibreur de charge<\/b><span style=\"font-weight: 400;\"> (load balancer) a pour mission d\u2019acheminer les requ\u00eates sur tous les serveurs en mesure d\u2019y r\u00e9pondre, de telle sorte \u00e0 maximiser la vitesse et l\u2019utilisation de la capacit\u00e9, garantissant qu\u2019aucun serveur ne soit <\/span><b>surcharg\u00e9<\/b><span style=\"font-weight: 400;\"> (ce qui aurait pour cons\u00e9quence de r\u00e9duire les performances). Si un serveur tombe en panne, l\u2019\u00e9quilibreur de charge <\/span><b>redirige les requ\u00eates<\/b><span style=\"font-weight: 400;\"> vers les serveurs restants. Au contraire, si un <a href=\"https:\/\/datascientest.com\/vertical-scaling\">nouveau serveur <\/a>est ajout\u00e9 au groupe, l\u2019\u00e9quilibreur de charge commence automatiquement \u00e0 lui envoyer des requ\u00eates.<\/span><\/p><p><span style=\"font-weight: 400;\">Les charges sont r\u00e9parties en fonction de divers crit\u00e8res, comme par exemple l\u2019emplacement g\u00e9ographique des utilisateurs, ou le nombre d&rsquo;utilisateurs simultan\u00e9s. De fait, l\u2019\u00e9quilibreur de charge ex\u00e9cute les t\u00e2ches suivantes :\u00a0<\/span><\/p><ul><li aria-level=\"1\"><b>Distribution des requ\u00eates <\/b><span style=\"font-weight: 400;\">ou des charges r\u00e9seaux vers de multiples serveurs<\/span><\/li><li aria-level=\"1\"><span style=\"font-weight: 400;\">S\u2019<\/span><b>assure de la disponibilit\u00e9<\/b><span style=\"font-weight: 400;\"> en transmettant les requ\u00eates uniquement aux serveurs en ligne<\/span><\/li><li aria-level=\"1\"><span style=\"font-weight: 400;\">Peut <\/span><b>ajouter ou supprimer des serveurs automatiquement<\/b><span style=\"font-weight: 400;\"> pour s\u2019adapter \u00e0 la charge.<\/span><\/li><\/ul>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-0bc3fe6 e-flex e-con-boxed e-con\" data-id=\"0bc3fe6\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;boxed&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-eafde25 elementor-widget elementor-widget-heading\" data-id=\"eafde25\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Les algorithmes<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-47365e4 elementor-widget elementor-widget-text-editor\" data-id=\"47365e4\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Plusieurs algorithmes permettent de tirer diff\u00e9rents avantages des \u00e9quilibreurs de charges, d\u00e9pendamment du besoin recherch\u00e9 :\u00a0<\/span><\/p><ul><li style=\"font-weight: 400;\" aria-level=\"1\"><b>Round Robin<\/b><span style=\"font-weight: 400;\"> : la charge est distribu\u00e9e sur le groupe de serveur s\u00e9quentiellement<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><b>Least Connection<\/b><span style=\"font-weight: 400;\"> : chaque nouvelle requ\u00eate est envoy\u00e9e au serveur avec le moins de connexions actives.<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><b>IP Hash<\/b><span> : l\u2019adresse IP du client est utilis\u00e9e pour d\u00e9terminer le serveur recevant la requ\u00eate<\/span><\/li><\/ul>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-90763fd elementor-widget elementor-widget-text-editor\" data-id=\"90763fd\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Les \u00e9quilibreurs de charge sont g\u00e9n\u00e9ralement r\u00e9partis en 2 cat\u00e9gories : <\/span><b>Layer 4 <\/b><span style=\"font-weight: 400;\">(couche 4) et <\/span><b>Layer 7 <\/b><span style=\"font-weight: 400;\">(couche 7), se r\u00e9f\u00e9rant directement \u00e0 la couche du mod\u00e8le OSI o\u00f9 ils agissent. Les \u00e9quilibreurs layer 4 agissent sur les donn\u00e9es trouv\u00e9es au niveau des <\/span><b>protocoles des couches r\u00e9seaux<\/b><span style=\"font-weight: 400;\"> et transport (IP, TCP, UDP, FTP), tandis que les \u00e9quilibreurs layer 7 distribuent les requ\u00eates en fonction des donn\u00e9es trouv\u00e9es dans les protocoles de la couche application (HTTP).<\/span><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-2790151 e-flex e-con-boxed e-con\" data-id=\"2790151\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;boxed&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-2e629fc elementor-widget elementor-widget-heading\" data-id=\"2e629fc\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Les \u00e9quilibreurs mat\u00e9riel et logiciel<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-88b59dc elementor-widget elementor-widget-text-editor\" data-id=\"88b59dc\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Deux types de NLB existent :\u00a0<\/span><\/p><ul><li style=\"font-weight: 400;\" aria-level=\"1\"><b>NLB mat\u00e9riel<\/b><span style=\"font-weight: 400;\"> : ils utilisent des dispositifs mat\u00e9riels sp\u00e9ciaux (comme des commutateurs r\u00e9seau) pour r\u00e9partir la charge de travail.<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><b>NLB logiciel<\/b><span> : ils utilisent des logiciels sp\u00e9cifiques install\u00e9s sur les serveurs eux-m\u00eames pour g\u00e9rer la r\u00e9partition de la charge.<\/span><\/li><\/ul>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-64ac526 elementor-align-center button-principale elementor-widget elementor-widget-button\" data-id=\"64ac526\" data-element_type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm elementor-animation-grow\" href=\"https:\/\/datascientest.com\/formations-data\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t<span class=\"elementor-button-text\">En savoir plus sur nos formation Data et Cloud<\/span>\n\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-f7e7567 e-flex e-con-boxed e-con\" data-id=\"f7e7567\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;boxed&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-df569d6 elementor-widget elementor-widget-heading\" data-id=\"df569d6\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Pour conclure<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e5ca7e6 elementor-widget elementor-widget-text-editor\" data-id=\"e5ca7e6\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Le Network Load Balancing est une technique puissante pour <\/span><b>am\u00e9liorer les performances<\/b><span style=\"font-weight: 400;\"> de vos applications en r\u00e9partissant la charge de travail efficacement. Le tableau suivant vous pr\u00e9sente les principaux avantages et inconv\u00e9nients :<\/span><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-322d44c elementor-widget elementor-widget-html\" data-id=\"322d44c\" data-element_type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style type=\"text\/css\">\r\n.tg  {border-collapse:collapse;border-spacing:0;}\r\n.tg td{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px;\r\n  overflow:hidden;padding:10px 5px;word-break:normal;}\r\n.tg th{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px;\r\n  font-weight:normal;overflow:hidden;padding:10px 5px;word-break:normal;}\r\n.tg .tg-uqo3{background-color:#efefef;text-align:center;vertical-align:top}\r\n.tg .tg-gzlm{background-color:#6665cd;color:#efefef;font-size:20px;text-align:center;vertical-align:top}\r\n<\/style>\r\n<table class=\"tg\" style=\"undefined;table-layout: fixed; width: 600px\">\r\n<colgroup>\r\n<col style=\"width: 300px\">\r\n<col style=\"width: 300px\">\r\n<\/colgroup>\r\n<thead>\r\n  <tr>\r\n    <th class=\"tg-gzlm\">Avantages<\/th>\r\n    <th class=\"tg-gzlm\">Inconv\u00e9nients<\/th>\r\n  <\/tr>\r\n<\/thead>\r\n<tbody>\r\n  <tr>\r\n    <td class=\"tg-uqo3\">Am\u00e9lioration de la disponibilit\u00e9 et des performances<\/td>\r\n    <td class=\"tg-uqo3\">Mise en place et configuration parfois complexe n\u00e9cessitant une expertise technique<\/td>\r\n  <\/tr>\r\n  <tr>\r\n    <td class=\"tg-uqo3\">Temps d\u2019arr\u00eat r\u00e9duit<\/td>\r\n    <td class=\"tg-uqo3\">N\u00e9cessite une protection sp\u00e9cifique contre les attaques par d\u00e9ni de service (DoS)<\/td>\r\n  <\/tr>\r\n  <tr>\r\n    <td class=\"tg-uqo3\">R\u00e9duction des co\u00fbts<\/td>\r\n    <td class=\"tg-uqo3\"><\/td>\r\n  <\/tr>\r\n<\/tbody>\r\n<\/table>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c0e12d8 elementor-align-center button-principale elementor-widget elementor-widget-button\" data-id=\"c0e12d8\" data-element_type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm elementor-animation-grow\" href=\"https:\/\/datascientest.com\/formations-data\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t<span class=\"elementor-button-text\">D\u00e9couvrir nos formations en Data<\/span>\n\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-58e5941 e-flex e-con-boxed e-con\" data-id=\"58e5941\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;boxed&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-9294ca0 elementor-widget elementor-widget-html\" data-id=\"9294ca0\" data-element_type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<script type=\"application\/ld+json\">\r\n{\r\n  \"@context\": \"https:\/\/schema.org\",\r\n  \"@type\": \"FAQPage\",\r\n  \"mainEntity\": [{\r\n    \"@type\": \"Question\",\r\n    \"name\": \"Qu'est ce que le Network Load Balancing (NLB) ?\",\r\n    \"acceptedAnswer\": {\r\n      \"@type\": \"Answer\",\r\n      \"text\": \"Lorsque vous naviguez sur Internet, il y a tout un processus sous-jacent enti\u00e8rement transparent pour vous. Ce processus est responsable de l\u2019acheminement de vos requ\u00eates (recherches par exemple) vers le serveur distant \u2013 situ\u00e9 potentiellement \u00e0 l\u2019autre bout du monde \u2013 h\u00e9bergeant le site web. La r\u00e9ponse de ce serveur vous est ensuite restitu\u00e9e en un temps tr\u00e8s court, et heureusement que ce d\u00e9lai n\u2019est pas fonction de la distance vous s\u00e9parant du serveur.\"\r\n    }\r\n  },{\r\n    \"@type\": \"Question\",\r\n    \"name\": \"Les algorithmes\",\r\n    \"acceptedAnswer\": {\r\n      \"@type\": \"Answer\",\r\n      \"text\": \"Les \u00e9quilibreurs de charge sont g\u00e9n\u00e9ralement r\u00e9partis en 2 cat\u00e9gories : Layer 4 (couche 4) et Layer 7 (couche 7), se r\u00e9f\u00e9rant directement \u00e0 la couche du mod\u00e8le OSI o\u00f9 ils agissent. Les \u00e9quilibreurs layer 4 agissent sur les donn\u00e9es trouv\u00e9es au niveau des protocoles des couches r\u00e9seaux et transport (IP, TCP, UDP, FTP), tandis que les \u00e9quilibreurs layer 7 distribuent les requ\u00eates en fonction des donn\u00e9es trouv\u00e9es dans les protocoles de la couche application (HTTP).\"\r\n    }\r\n  }]\r\n}\r\n<\/script>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Qu&rsquo;est ce que le Network Load Balancing (NLB) ? Lorsque vous naviguez sur Internet, il y a tout un processus sous-jacent enti\u00e8rement transparent pour vous. Ce processus est responsable de l\u2019acheminement de vos requ\u00eates (recherches par exemple) vers le serveur distant \u2013 situ\u00e9 potentiellement \u00e0 l\u2019autre bout du monde \u2013 h\u00e9bergeant le site web. La [&hellip;]<\/p>\n","protected":false},"author":77,"featured_media":198643,"comment_status":"open","ping_status":"open","sticky":false,"template":"elementor_theme","format":"standard","meta":{"content-type":"","inline_featured_image":false},"categories":[2497],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.7 (Yoast SEO v21.7) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Network Load Balancing (NBL) : Qu&#039;est-ce que c&#039;est ? \u00c0 quoi \u00e7a sert ?<\/title>\n<meta name=\"description\" content=\"Le Network Load Balancing (NLB) garantit une qualit\u00e9 et une disponibilit\u00e9 optimale et non alt\u00e9r\u00e9e d&#039;un site web. 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