{"id":213623,"date":"2023-10-23T05:30:00","date_gmt":"2023-10-23T05:30:00","guid":{"rendered":"https:\/\/datascientest.com\/?p=213623"},"modified":"2023-11-09T14:21:29","modified_gmt":"2023-11-09T14:21:29","slug":"wan-tout-savoir","status":"publish","type":"post","link":"https:\/\/datascientest.com\/wan-tout-savoir","title":{"rendered":"R\u00e9seaux WAN : Qu&rsquo;est ce que c&rsquo;est ? \u00c0 quoi servent-ils ?"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"213623\" class=\"elementor elementor-213623\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-41bdaab e-flex e-con-boxed e-con\" data-id=\"41bdaab\" 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-02c39c4 elementor-widget elementor-widget-heading\" data-id=\"02c39c4\" 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><h2 class=\"elementor-heading-title elementor-size-default\">Avec des sites parfois s\u00e9par\u00e9s par plusieurs centaines de kilom\u00e8tres, les entreprises ont besoin de connecter leurs dispositifs entre eux. C\u2019est \u00e0 cet instant qu\u2019interviennent les WAN.<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2efba0b elementor-widget elementor-widget-text-editor\" data-id=\"2efba0b\" 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;\">Alors de quoi s\u2019agit-il ? <strong>C<\/strong><\/span><b>omment fonctionnent ces r\u00e9seaux \u00e9tendus ? <\/b><span style=\"font-weight: 400;\">C\u2019est ce que nous allons voir dans cet article. <\/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-a83e368 e-flex e-con-boxed e-con\" data-id=\"a83e368\" 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-06f63f4 elementor-widget elementor-widget-heading\" data-id=\"06f63f4\" 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\">Qu\u2019est-ce qu\u2019un WAN ?<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3debba5 elementor-widget elementor-widget-text-editor\" data-id=\"3debba5\" 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;\">WAN est l&rsquo;acronyme pour Wide Area Network. Autrement dit, <\/span><b>un r\u00e9seau de communication \u00e9tendu<\/b><span style=\"font-weight: 400;\">. L\u2019objectif est de connecter des \u00e9quipements entre eux sur de grandes zones g\u00e9ographiques. Par exemple, un centre-ville, une m\u00e9tropole enti\u00e8re, une r\u00e9gion et m\u00eame un pays. Gr\u00e2ce \u00e0 ces r\u00e9seaux WAN, il est possible de <\/span><b>couvrir diff\u00e9rents sites, peu importe leur localisation g\u00e9ographique.\u00a0<\/b><\/p><p><span style=\"font-weight: 400;\">Le premier WAN connu a \u00e9t\u00e9 cr\u00e9\u00e9 par l&rsquo;arm\u00e9e de l&rsquo;air am\u00e9ricaine \u00e0 la fin des ann\u00e9es 1950. L\u2019objectif \u00e9tait alors de connecter tous les sites du syst\u00e8me de d\u00e9fense radar gr\u00e2ce \u00e0 un \u00e9norme r\u00e9seau de lignes t\u00e9l\u00e9phoniques, de t\u00e9l\u00e9phones et de modems. Aujourd\u2019hui, les r\u00e9seaux WAN sont partout, puisqu\u2019une grande majorit\u00e9 d\u2019entreprises les utilisent. Sans oublier qu\u2019ils constituent la base des <a href=\"https:\/\/datascientest.com\/les-recherches-internet-vont-changer-a-jamais-avec-la-magi-de-google\">services Internet<\/a>.<\/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-21133f5 elementor-widget elementor-widget-image\" data-id=\"21133f5\" 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=\"900\" height=\"500\" src=\"https:\/\/datascientest.com\/wp-content\/uploads\/2023\/09\/Wide-Area-Network-1.png\" class=\"attachment-full size-full wp-image-213646\" alt=\"\" srcset=\"https:\/\/datascientest.com\/wp-content\/uploads\/2023\/09\/Wide-Area-Network-1.png 900w, https:\/\/datascientest.com\/wp-content\/uploads\/2023\/09\/Wide-Area-Network-1-300x167.png 300w, https:\/\/datascientest.com\/wp-content\/uploads\/2023\/09\/Wide-Area-Network-1-768x427.png 768w\" sizes=\"(max-width: 900px) 100vw, 900px\" \/>\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-412b1f9 elementor-align-center button-principale elementor-widget elementor-widget-button\" data-id=\"412b1f9\" 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\/formation-administrateur-systeme-reseaux-et-cloud\">\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\">Tout apprendre du WAN<\/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<div class=\"elementor-element elementor-element-b8538e1 e-flex e-con-boxed e-con\" data-id=\"b8538e1\" 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-3ca4fcf elementor-widget elementor-widget-heading\" data-id=\"3ca4fcf\" 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 diff\u00e9rences entre le WAN et les autres r\u00e9seaux<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4c9b71b elementor-widget elementor-widget-text-editor\" data-id=\"4c9b71b\" 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;\">Outre les WAN, il existe d\u2019autres types de r\u00e9seaux. Voici les principaux.\u00a0<\/span><\/p><ul><li style=\"font-weight: 400;\" aria-level=\"1\"><b>WAN et LAN <\/b><span style=\"font-weight: 400;\">: les LAN sont des Local Area Network (ou r\u00e9seaux locaux) qui ne connectent que les appareils situ\u00e9s dans une zone g\u00e9ographique unique et limit\u00e9e (comme le b\u00e2timent d\u2019une entreprise). \u00c0 l\u2019inverse, le r\u00e9seau WAN est un regroupement de plusieurs r\u00e9seaux locaux. Ils peuvent ainsi \u00eatre utilis\u00e9s par les entreprises ayant plusieurs entit\u00e9s.\u00a0<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><b>WAN et MAN : <\/b><span style=\"font-weight: 400;\">ce sont les Metropolitan Area Network (ou r\u00e9seaux m\u00e9tropolitains. Ils couvrent g\u00e9n\u00e9ralement une ville enti\u00e8re. Pour couvrir de telles distances, le r\u00e9seau MAN utilise la fibre optique ou une composante sans fil \u00e0 haute port\u00e9e (comme le WiMAX).<\/span><\/li><\/ul><ul><li style=\"font-weight: 400;\" aria-level=\"1\"><b>WAN et WLAN :<\/b><span style=\"font-weight: 400;\"> il s\u2019agit simplement d\u2019un Wireless LAN. Autrement dit, un r\u00e9seau local sans fil. Il fonctionne alors gr\u00e2ce aux ondes WiFi.<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><b>WAN et GAN : <\/b><span style=\"font-weight: 400;\">en r\u00e9alit\u00e9, les deux sont similaires puisqu\u2019il s\u2019agit du Global Area Network pour r\u00e9seau global.<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><b>WAN et SD-WAN : <\/b><span>c\u2019est un Software Defined &#8211; Wide Area Network. Il s\u2019agit d\u2019une branche du WAN, qui utilise davantage l\u2019optimisation logicielle que l&rsquo;infrastructure mat\u00e9rielle pour garantir le bon fonctionnement du r\u00e9seau.<\/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\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-a37a7c7 e-flex e-con-boxed e-con\" data-id=\"a37a7c7\" 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-b971faa elementor-widget elementor-widget-heading\" data-id=\"b971faa\" 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\">Le WAN et le service Internet<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-45bbaa4 elementor-widget elementor-widget-text-editor\" data-id=\"45bbaa4\" 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 WAN concernent aussi bien les r\u00e9seaux informatiques que les r\u00e9seaux de t\u00e9l\u00e9communication. D\u2019ailleurs, le plus connu de tous les WAN est sans conteste <\/span><b>Internet.<\/b><span style=\"font-weight: 400;\"> Il couvre la quasi int\u00e9gralit\u00e9 de la plan\u00e8te, voire m\u00eame au-del\u00e0 puisque la communication est rendue possible gr\u00e2ce aux satellites.\u00a0<\/span><\/p><p><span style=\"font-weight: 400;\">Internet est le parfait exemple de la <\/span><b>superposition entre les WAN et les LAN. <\/b><span style=\"font-weight: 400;\">L\u2019acc\u00e8s \u00e0 internet est garanti pour une tr\u00e8s large partie de la population mondiale gr\u00e2ce \u00e0 de nombreuses infrastructures pr\u00e9sentes un peu partout sur la plan\u00e8te. Mais pour pouvoir en b\u00e9n\u00e9ficier, les m\u00e9nages ou les entreprises ont besoin d\u2019un commutateur r\u00e9seau. C\u2019est la box internet. Celle-ci n\u2019offre l\u2019acc\u00e8s \u00e0 internet qu\u2019\u00e0 ceux qui s\u2019y connectent via un c\u00e2ble Ethernet ou via le WiFi (accessible g\u00e9n\u00e9ralement gr\u00e2ce \u00e0 un identifiant et un mot de passe). Et surtout, la diffusion du trafic internet par l\u2019interm\u00e9diaire de cette box est limit\u00e9e g\u00e9ographiquement. Seuls les dispositifs qui se trouvent dans le p\u00e9rim\u00e8tre peuvent y acc\u00e9der. Il peut s&rsquo;agir d\u2019une maison, d\u2019un bureau, d\u2019un restaurant, d\u2019un centre commercial\u2026 C\u2019est le r\u00e9seau local LAN.\u00a0<\/span><\/p><p><span style=\"font-weight: 400;\">Il y a donc plusieurs milliards de r\u00e9seaux LAN au sein de r\u00e9seau WAN Internet.<\/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-e07ed26 elementor-widget elementor-widget-image\" data-id=\"e07ed26\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"900\" height=\"500\" src=\"https:\/\/datascientest.com\/wp-content\/uploads\/2023\/09\/Wide-Area-Network-2.png\" class=\"attachment-full size-full wp-image-213657\" alt=\"\" srcset=\"https:\/\/datascientest.com\/wp-content\/uploads\/2023\/09\/Wide-Area-Network-2.png 900w, https:\/\/datascientest.com\/wp-content\/uploads\/2023\/09\/Wide-Area-Network-2-300x167.png 300w, https:\/\/datascientest.com\/wp-content\/uploads\/2023\/09\/Wide-Area-Network-2-768x427.png 768w\" sizes=\"(max-width: 900px) 100vw, 900px\" \/>\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\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-b4293a3 e-flex e-con-boxed e-con\" data-id=\"b4293a3\" 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-6db22aa elementor-widget elementor-widget-heading\" data-id=\"6db22aa\" 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\">Comment fonctionne un WAN ?<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5ce88dc elementor-widget elementor-widget-text-editor\" data-id=\"5ce88dc\" 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;\">La mise en place d\u2019un r\u00e9seau WAN est <\/span><b>particuli\u00e8rement complexe au vu de l\u2019\u00e9tendue de la couverture.\u00a0<\/b><\/p><p><span style=\"font-weight: 400;\">Mais globalement, il comprend 3 \u00e9l\u00e9ments essentiels :\u00a0<\/span><\/p><ul><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\"><strong>Une liaison Internet et une liaison t\u00e9l\u00e9phonique<\/strong> : ce sont les op\u00e9rateurs du r\u00e9seau (comme les compagnies t\u00e9l\u00e9phoniques ou les fournisseurs d&rsquo;acc\u00e8s \u00e0 internet) qui installent ce type d\u2019infrastructure \u00e0 tr\u00e8s grande \u00e9chelle. Ils louent ensuite ces lignes aux entreprises. Ce qui leur permet d\u2019orienter la <a href=\"https:\/\/datascientest.com\/la-data-le-nouvel-or-du-21eme-siecle\">transmission des donn\u00e9es<\/a> vers le bon dispositif situ\u00e9 dans le r\u00e9seau local.<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\"><strong>Des liaisons point \u00e0 point<\/strong> : c\u2019est ce qui permet de relier les diff\u00e9rents r\u00e9seaux LAN entre eux. <\/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-9cd8636 elementor-widget elementor-widget-text-editor\" data-id=\"9cd8636\" 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<span style=\"font-weight: 400;\">En plus de tous les composants mat\u00e9riels, l\u2019infrastructure WAN repose sur la d\u00e9finition de protocole de communication stricte. L\u2019id\u00e9e \u00e9tant de transmettre les donn\u00e9es par <a href=\"https:\/\/datascientest.com\/scapy-tout-savoir\">commutation de paquets<\/a>. Pour les entreprises, il s\u2019agit g\u00e9n\u00e9ralement du <\/span><b>MPLS (MultiProtocol Label Switching)<\/b><span style=\"font-weight: 400;\"> qui assure un <\/span><span style=\"font-weight: 400;\">cloisonnement et une s\u00e9curit\u00e9 des flux de donn\u00e9es internes. <\/span><span style=\"font-weight: 400;\">Mais il est aussi possible d\u2019utiliser l\u2019ATM (Asynchronous Transfer Mode) ou l\u2019IP (Internet Protocol). <\/span>\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-e8dbc81 e-flex e-con-boxed e-con\" data-id=\"e8dbc81\" 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-236ffb4 elementor-widget elementor-widget-heading\" data-id=\"236ffb4\" 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\">Quel est l\u2019int\u00e9r\u00eat du r\u00e9seau WAN ?<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f24c774 elementor-widget elementor-widget-text-editor\" data-id=\"f24c774\" 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;\">Au-del\u00e0 d\u2019internet, les entreprises peuvent aussi impl\u00e9menter leur propre r\u00e9seau WAN, d\u00e8s lors qu\u2019elles poss\u00e8dent des sites r\u00e9partis sur plusieurs localisations : comme des usines et des bureaux, des agences locales, des filiales, etc.\u00a0<\/span><\/p><p><span style=\"font-weight: 400;\">Le r\u00f4le du WAN est alors de <\/span><b>connecter tous les r\u00e9seaux locaux pour cr\u00e9er un r\u00e9seau commun \u00e0 l\u2019entreprise.<\/b><span style=\"font-weight: 400;\"> Cela permet ainsi de fluidifier la circulation des donn\u00e9es au sein des diff\u00e9rentes entit\u00e9s. Gr\u00e2ce \u00e0 ce WAN, tous les collaborateurs peuvent acc\u00e9der aux ressources de l\u2019entreprise, quel que soit leur emplacement g\u00e9ographique. Par exemple, un collaborateur d\u2019une agence situ\u00e9e \u00e0 Lyon acc\u00e9dera aux m\u00eames donn\u00e9es qu\u2019un autre collaborateur situ\u00e9 \u00e0 Paris, Marseille ou Lille. Ce faisant, la communication est renforc\u00e9e entre les \u00e9quipes et la productivit\u00e9 est accrue.\u00a0<\/span><\/p><p><span style=\"font-weight: 400;\">En plus de faciliter le partage de donn\u00e9es en interne, l\u2019infrastructure WAN est aussi une excellente mani\u00e8re de mutualiser les outils de travail. <\/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-7aec746 elementor-widget elementor-widget-image\" data-id=\"7aec746\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"816\" height=\"500\" src=\"https:\/\/datascientest.com\/wp-content\/uploads\/2023\/09\/Wide-Area-Network-3.jpg\" class=\"attachment-full size-full wp-image-213668\" alt=\"\" srcset=\"https:\/\/datascientest.com\/wp-content\/uploads\/2023\/09\/Wide-Area-Network-3.jpg 816w, https:\/\/datascientest.com\/wp-content\/uploads\/2023\/09\/Wide-Area-Network-3-300x184.jpg 300w, https:\/\/datascientest.com\/wp-content\/uploads\/2023\/09\/Wide-Area-Network-3-768x471.jpg 768w\" sizes=\"(max-width: 816px) 100vw, 816px\" \/>\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-bf6b177 elementor-align-center button-principale elementor-widget elementor-widget-button\" data-id=\"bf6b177\" 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\/formation-administrateur-systeme-reseaux-et-cloud\">\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\">Apprendre \u00e0 maitriser le WAN<\/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-4e3a1f7 e-flex e-con-boxed e-con\" data-id=\"4e3a1f7\" 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-b45782e elementor-widget elementor-widget-heading\" data-id=\"b45782e\" 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\">Ce qu\u2019il faut retenir : <\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-bfba35f elementor-widget elementor-widget-text-editor\" data-id=\"bfba35f\" 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<ul><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Le WAN (ou Wide Area Network) est un r\u00e9seau \u00e9tendu qui permet de connecter des dispositifs sur de tr\u00e8s grandes zones g\u00e9ographiques. D\u2019ailleurs, le plus grand des r\u00e9seaux \u00e9tendus est internet, puisqu\u2019il est disponible \u00e0 l\u2019\u00e9chelle mondiale.\u00a0<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Afin de fonctionner, le WAN regroupe une multitude de r\u00e9seaux locaux LAN.\u00a0<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Pour les entreprises, cette technologie est indispensable puisqu\u2019elle facilite la communication et le partage des ressources entre plusieurs sites, quelle que soit leur localisation g\u00e9ographique. <\/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-354e319 e-flex e-con-boxed e-con\" data-id=\"354e319\" 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\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>Avec des sites parfois s\u00e9par\u00e9s par plusieurs centaines de kilom\u00e8tres, les entreprises ont besoin de connecter leurs dispositifs entre eux. C\u2019est \u00e0 cet instant qu\u2019interviennent les WAN. Alors de quoi s\u2019agit-il ? Comment fonctionnent ces r\u00e9seaux \u00e9tendus ? C\u2019est ce que nous allons voir dans cet article. Qu\u2019est-ce qu\u2019un WAN ? WAN est l&rsquo;acronyme pour [&hellip;]<\/p>\n","protected":false},"author":79,"featured_media":213625,"comment_status":"open","ping_status":"open","sticky":false,"template":"elementor_theme","format":"standard","meta":{"content-type":"","inline_featured_image":false},"categories":[2411],"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>R\u00e9seaux WAN : Qu&#039;est ce que c&#039;est ? \u00c0 quoi servent-ils ?<\/title>\n<meta name=\"description\" content=\"Pour connecter des sites \u00e0 plusieurs centaines de kilom\u00e8tres, les entreprises peuvent utiliser les WAN. 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Il poss\u00e8de une solide exp\u00e9rience dans le domaine de la data, ayant pr\u00e9c\u00e9demment occup\u00e9 des postes de Consultant en Data Science chez Meotec, Data Engineer chez Cetim, et Ing\u00e9nieur commercial chez Global D\u00e9co &amp; Food.\",\"sameAs\":[\"https:\/\/www.linkedin.com\/in\/dancohen1307\/\",\"Cloud & Data Engineering\"],\"url\":\"https:\/\/datascientest.com\/author\/dancohen\"}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"R\u00e9seaux WAN : Qu'est ce que c'est ? \u00c0 quoi servent-ils ?","description":"Pour connecter des sites \u00e0 plusieurs centaines de kilom\u00e8tres, les entreprises peuvent utiliser les WAN. 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