{"id":207368,"date":"2023-09-26T07:30:00","date_gmt":"2023-09-26T07:30:00","guid":{"rendered":"https:\/\/datascientest.com\/?p=207368"},"modified":"2023-11-09T14:21:35","modified_gmt":"2023-11-09T14:21:35","slug":"protocoles-reseau-tout-savoir","status":"publish","type":"post","link":"https:\/\/datascientest.com\/protocoles-reseau-tout-savoir","title":{"rendered":"Protocoles R\u00e9seau : d\u00e9finition, fonctionnement et types"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"207368\" class=\"elementor elementor-207368\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-849f190 e-flex e-con-boxed e-con\" data-id=\"849f190\" 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-ee23bea elementor-widget elementor-widget-heading\" data-id=\"ee23bea\" 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\">Les protocoles r\u00e9seau sont des r\u00e8gles et des normes qui permettent \u00e0 des ordinateurs de communiquer entre eux et de partager des donn\u00e9es. Ces protocoles sont utilis\u00e9s dans diff\u00e9rents types de r\u00e9seaux, tels que le r\u00e9seau local (LAN) et le r\u00e9seau \u00e9tendu (WAN) pour assurer la communication et la collaboration entre les utilisateurs.<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5c78f2b elementor-widget elementor-widget-text-editor\" data-id=\"5c78f2b\" 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;\">Mais qu\u2019est-ce qu\u2019un protocole r\u00e9seau ? Pourquoi sont-ils importants ? Quels sont les diff\u00e9rents types de protocoles r\u00e9seau ? R\u00e9ponses \u00e0 vos questions 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-6981a1b e-flex e-con-boxed e-con\" data-id=\"6981a1b\" 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-ceedbf1 elementor-widget elementor-widget-heading\" data-id=\"ceedbf1\" 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'est-ce qu'un protocole r\u00e9seau ?<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-29eae04 elementor-widget elementor-widget-text-editor\" data-id=\"29eae04\" 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;\">Avant de plonger dans les d\u00e9tails, il est important de comprendre ce qu&rsquo;est un protocole r\u00e9seau. Un protocole r\u00e9seau est une <\/span><b>norme ou un ensemble de r\u00e8gles<\/b><span style=\"font-weight: 400;\"> qui d\u00e9finit comment les ordinateurs communiquent entre eux. Les protocoles r\u00e9seau d\u00e9finissent les formats de donn\u00e9es, les types de messages, les m\u00e9thodes d&rsquo;authentification et les m\u00e9thodes de contr\u00f4le d&rsquo;acc\u00e8s qui sont utilis\u00e9s pour assurer la s\u00e9curit\u00e9 et la fiabilit\u00e9 de la communication. Ils sont essentiels \u00e0 la <\/span><b>communication entre les ordinateurs<\/b><span style=\"font-weight: 400;\"> et des milliers de protocoles diff\u00e9rents ont \u00e9t\u00e9 d\u00e9velopp\u00e9s au fil du temps.<\/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-077ad03 e-flex e-con-boxed e-con\" data-id=\"077ad03\" 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-29dfb9c elementor-widget elementor-widget-heading\" data-id=\"29dfb9c\" 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 le r\u00f4le des protocoles r\u00e9seau dans la communication ?<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ab3ed52 elementor-widget elementor-widget-text-editor\" data-id=\"ab3ed52\" 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 protocoles r\u00e9seau sont essentiels \u00e0 la communication entre les ordinateurs, car ils permettent l\u2019envoi de messages standardis\u00e9s et efficaces. Sans protocoles r\u00e9seau, les ordinateurs auraient du mal \u00e0 <\/span><b>communiquer de mani\u00e8re coh\u00e9rente et fiable<\/b><span style=\"font-weight: 400;\">. Ils permettent \u00e9galement de garantir la s\u00e9curit\u00e9 et la confidentialit\u00e9 des donn\u00e9es.<\/span><\/p><p><span style=\"font-weight: 400;\">Il existe diff\u00e9rents types de protocoles r\u00e9seau, chacun ayant ses propres caract\u00e9ristiques et fonctionnalit\u00e9s. Par exemple, le <strong>protocole<\/strong> <\/span><b>TCP (Transmission Control Protocol)<\/b><span style=\"font-weight: 400;\"> est utilis\u00e9 pour assurer une communication fiable entre les ordinateurs, tandis que le <strong>protocole UDP (User Datagram Protocol)<\/strong> est utilis\u00e9 pour une communication plus rapide, mais moins fiable.<\/span><\/p><p><span style=\"font-weight: 400;\">En outre, les protocoles r\u00e9seau sont utilis\u00e9s dans de nombreux domaines, tels que les t\u00e9l\u00e9communications, l&rsquo;informatique, l&rsquo;industrie et la m\u00e9decine. Par exemple, le <\/span><b>protocole DICOM<\/b><span style=\"font-weight: 400;\"> (Digital Imaging and Communications in Medicine) est utilis\u00e9 pour les images m\u00e9dicales, tandis que le <\/span><b>protocole VoIP<\/b><span style=\"font-weight: 400;\"> (Voice over Internet Protocol) est utilis\u00e9 pour les communications vocales sur Internet.<\/span><\/p><p><span style=\"font-weight: 400;\">Les protocoles r\u00e9seau sont souvent d\u00e9taill\u00e9s en fonction de la couche OSI \u00e0 laquelle ils appartiennent.<\/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-f087588 e-flex e-con-boxed e-con\" data-id=\"f087588\" 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-0b05938 elementor-widget elementor-widget-heading\" data-id=\"0b05938\" 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 couches du mod\u00e8le OSI<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d54c260 elementor-widget elementor-widget-text-editor\" data-id=\"d54c260\" 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;\">Le <b>mod\u00e8le OSI (Open Systems Interconnection)<\/b> est une repr\u00e9sentation des communications de travail d\u2019Internet. La plupart des protocoles r\u00e9seau sont bas\u00e9s sur le mod\u00e8le OSI. Il contient 7 couches :\u00a0<\/span>\n<ul>\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><b>La couche d\u2019application<\/b><span style=\"font-weight: 400;\"> : couche d\u2019interaction entre l\u2019humain et l\u2019ordinateur, elle permet aux applications d\u2019acc\u00e9der aux services du r\u00e9seau.<\/span><\/li>\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><b>La couche de pr\u00e9sentation<\/b><span style=\"font-weight: 400;\"> : encode et d\u00e9code les donn\u00e9es, cette couche assure que les donn\u00e9es soient utilisables dans des syst\u00e8mes diff\u00e9rents.<\/span><\/li>\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><b>La couche de session<\/b><span style=\"font-weight: 400;\"> : maintient les connexions et g\u00e8re les sessions des utilisateurs.<\/span><\/li>\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><b>La couche de transport<\/b><span style=\"font-weight: 400;\"> : g\u00e8re la livraison de protocoles (<\/span><i><span style=\"font-weight: 400;\">plus de d\u00e9tails dans le prochain paragraphe<\/span><\/i><span style=\"font-weight: 400;\">).<\/span><\/li>\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><b>La couche r\u00e9seau<\/b><span style=\"font-weight: 400;\"> : achemine la data \u00e0 travers les ressources adapt\u00e9es du r\u00e9seau.\u00a0<\/span><\/li>\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><b>La couche de liaison de donn\u00e9es<\/b><span style=\"font-weight: 400;\"> : d\u00e9finit le format de la donn\u00e9e sur le r\u00e9seau.<\/span><\/li>\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><b>La couche physique<\/b> : d\u00e9finit les caract\u00e9ristiques \u00e9lectriques, m\u00e9caniques et optiques. Elle agit en tant qu\u2019interface entre le r\u00e9seau et les appareils.<\/li>\n<\/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-87a6cc5 elementor-widget elementor-widget-image\" data-id=\"87a6cc5\" 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=\"600\" height=\"350\" src=\"https:\/\/datascientest.com\/wp-content\/uploads\/2023\/07\/protocol-reseau1.jpg\" class=\"attachment-full size-full wp-image-207386\" alt=\"\" srcset=\"https:\/\/datascientest.com\/wp-content\/uploads\/2023\/07\/protocol-reseau1.jpg 600w, https:\/\/datascientest.com\/wp-content\/uploads\/2023\/07\/protocol-reseau1-300x175.jpg 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/>\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-f49abe6 elementor-align-center button-principale elementor-widget elementor-widget-button\" data-id=\"f49abe6\" 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-systemes-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\">Ma\u00eetriser les protocoles r\u00e9seau<\/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-d074197 e-flex e-con-boxed e-con\" data-id=\"d074197\" 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-d1b75c5 elementor-widget elementor-widget-heading\" data-id=\"d1b75c5\" 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\u00e9rents types de protocoles r\u00e9seau<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e5ce2d5 elementor-widget elementor-widget-text-editor\" data-id=\"e5ce2d5\" 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;\">Maintenant que vous connaissez les 7 couches du mod\u00e8le OSI, il est temps de d\u00e9couvrir les diff\u00e9rents types de protocoles r\u00e9seau au sein des diff\u00e9rentes couches.<\/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-564fe6e elementor-widget elementor-widget-heading\" data-id=\"564fe6e\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">Protocoles de couche d\u2019application<\/h4>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0d2261e elementor-widget elementor-widget-text-editor\" data-id=\"0d2261e\" 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 protocoles de couche application sont des protocoles qui permettent \u00e0 des programmes de s&rsquo;envoyer des informations de <\/span><b>mani\u00e8re structur\u00e9e et organis\u00e9e<\/b><span style=\"font-weight: 400;\">. Les protocoles de couche application sont souvent utilis\u00e9s pour la communication sur le web. Parmi les protocoles de couche application les plus connus, on peut citer :<\/span><\/p><ul><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\"><strong>HTTP<\/strong> : utilis\u00e9 pour la communication entre les navigateurs et les serveurs web.<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\"><strong>FTP<\/strong> : utilis\u00e9 pour le transfert de fichiers entre ordinateurs.<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\"><strong>SMTP<\/strong> : utilis\u00e9 pour l&rsquo;envoi de courriels.<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\"><strong>POP3<\/strong> : utilis\u00e9 pour la r\u00e9cup\u00e9ration de courriels.<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\"><strong>DNS<\/strong> : utilis\u00e9 pour mapper les noms d\u2019h\u00f4tes sur des adresses IP.<\/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-968ad6e elementor-widget elementor-widget-heading\" data-id=\"968ad6e\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">Protocoles de couche de transport<\/h4>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6834af4 elementor-widget elementor-widget-text-editor\" data-id=\"6834af4\" 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 protocoles de couche transport sont utilis\u00e9s pour la communication entre les ordinateurs. Ils permettent de <\/span><b>garantir que les donn\u00e9es sont envoy\u00e9es<\/b><span style=\"font-weight: 400;\"> et re\u00e7ues sans erreur et dans le bon ordre. Les protocoles de couche de transport sont donc tr\u00e8s importants pour assurer la fiabilit\u00e9 de la communication. Les plus couramment utilis\u00e9s sont :<\/span><\/p><ul><li style=\"font-weight: 400;\" aria-level=\"1\"><b>TCP (Transmission Control Protocol)<\/b><span style=\"font-weight: 400;\"> : utilis\u00e9 pour les connexions fiables, o\u00f9 toutes les donn\u00e9es doivent \u00eatre re\u00e7ues dans l&rsquo;ordre. Ce service est fiable gr\u00e2ce \u00e0 un <\/span><b>accus\u00e9 de r\u00e9ception<\/b><span style=\"font-weight: 400;\"> s\u00e9quenc\u00e9.<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\"><strong>UDP<\/strong> : utilis\u00e9 pour les connexions peu fiables, o\u00f9 certaines pertes de donn\u00e9es sont acceptables.<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\"><strong>SCTP<\/strong> : utilis\u00e9 pour les connexions fiables, mais avec une meilleure gestion de la congestion (\u00e9viter les goulots d\u2019\u00e9tranglement) que TCP.<\/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-8feeb39 elementor-widget elementor-widget-heading\" data-id=\"8feeb39\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">Protocoles de couche de r\u00e9seau<\/h4>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c45a6d1 elementor-widget elementor-widget-text-editor\" data-id=\"c45a6d1\" 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 protocoles de couche r\u00e9seau sont utilis\u00e9s pour la communication entre les r\u00e9seaux. Ils permettent de router les <\/span><b>paquets de donn\u00e9es<\/b><span style=\"font-weight: 400;\"> entre les diff\u00e9rents r\u00e9seaux qui composent Internet. Les protocoles de couche de r\u00e9seau les plus couramment utilis\u00e9s sont :<\/span><\/p><ul><li style=\"font-weight: 400;\" aria-level=\"1\"><b>IP (Internet Protocol)<\/b><span style=\"font-weight: 400;\"> : utilis\u00e9 pour l&rsquo;adressage et le routage des paquets de donn\u00e9es.<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><b>ICMP (Internet Control Message Protocol)<\/b><span> : utilis\u00e9 pour la gestion des erreurs et des messages de contr\u00f4le.<\/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-1a12392 elementor-widget elementor-widget-heading\" data-id=\"1a12392\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">Protocoles de couche de liaison de donn\u00e9es<\/h4>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b208636 elementor-widget elementor-widget-text-editor\" data-id=\"b208636\" 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 protocoles de couche liaison de donn\u00e9es sont utilis\u00e9s pour contr\u00f4ler le <\/span><b>flux de donn\u00e9es<\/b><span style=\"font-weight: 400;\"> sur un canal de communication. Ils garantissent que les donn\u00e9es sont envoy\u00e9es et re\u00e7ues sans erreur en d\u00e9tectant et corrigeant les <\/span><b>erreurs de transmission de paquets<\/b><span style=\"font-weight: 400;\">. Les protocoles de couche de liaison de donn\u00e9es les plus couramment utilis\u00e9s sont :<\/span><\/p><ul><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\"><strong>HDLC<\/strong> : utilis\u00e9 pour la communication entre des \u00e9quipements de t\u00e9l\u00e9communication.<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\"><strong>PPP<\/strong> : utilis\u00e9 pour la communication entre des ordinateurs et des \u00e9quipements de t\u00e9l\u00e9communication.<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\"><strong>ATM<\/strong> : utilis\u00e9 pour la communication \u00e0 haut d\u00e9bit sur des r\u00e9seaux de t\u00e9l\u00e9communication<\/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-ff23615 elementor-widget elementor-widget-text-editor\" data-id=\"ff23615\" 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;\">Quant aux protocoles r\u00e9seau de couches de pr\u00e9sentation et de session, deux d\u2019entre eux sont \u00e0 conna\u00eetre\u00a0:\u00a0<\/span><\/p><ul><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\"><strong>RPC<\/strong> (session) : utilis\u00e9 pour demander un service \u00e0 un programme situ\u00e9 dans un autre ordinateur distant via un r\u00e9seau, sans avoir \u00e0 comprendre les d\u00e9tails du r\u00e9seau.<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\"><strong>LPP<\/strong> (pr\u00e9sentation) : utilis\u00e9 pour une prise en charge simplifi\u00e9e des applications bas\u00e9es sur des r\u00e9seaux TCP\/IP.<\/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-77ec0ad e-flex e-con-boxed e-con\" data-id=\"77ec0ad\" 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-41da75a elementor-widget elementor-widget-heading\" data-id=\"41da75a\" 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 protocoles r\u00e9seau en bref<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-86ee947 elementor-widget elementor-widget-text-editor\" data-id=\"86ee947\" 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 protocoles r\u00e9seau sont des <strong>r\u00e8gles<\/strong> et des <strong>normes<\/strong> essentielles pour la communication et le partage de ressources sur un r\u00e9seau. Ils permettent une <strong>communication efficace et standardis\u00e9e<\/strong> entre les appareils connect\u00e9s et garantissent la s\u00e9curit\u00e9 et la confidentialit\u00e9 des donn\u00e9es. En comprenant les <strong>diff\u00e9rents types de protocoles r\u00e9seau<\/strong> et leur fonctionnement, vous tirez le meilleur parti de leur utilisation.<\/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-75ef85d elementor-widget elementor-widget-image\" data-id=\"75ef85d\" 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=\"506\" src=\"https:\/\/datascientest.com\/wp-content\/uploads\/2023\/07\/protocole-reseau2.png\" class=\"attachment-full size-full wp-image-207390\" alt=\"\" srcset=\"https:\/\/datascientest.com\/wp-content\/uploads\/2023\/07\/protocole-reseau2.png 900w, https:\/\/datascientest.com\/wp-content\/uploads\/2023\/07\/protocole-reseau2-300x169.png 300w, https:\/\/datascientest.com\/wp-content\/uploads\/2023\/07\/protocole-reseau2-768x432.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-4b613e5 elementor-align-center button-principale elementor-widget elementor-widget-button\" data-id=\"4b613e5\" 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-systemes-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\">D\u00e9couvrir notre formation AdminSys<\/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-30aa096 e-flex e-con-boxed e-con\" data-id=\"30aa096\" 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-c5aedd1 elementor-widget elementor-widget-html\" data-id=\"c5aedd1\" 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\": \"Protocoles r\u00e9seau : d\u00e9finition\",\r\n    \"acceptedAnswer\": {\r\n      \"@type\": \"Answer\",\r\n      \"text\": \"Avant de plonger dans les d\u00e9tails, il est important de comprendre ce qu'est un protocole r\u00e9seau. Un protocole r\u00e9seau est une norme ou un ensemble de r\u00e8gles qui d\u00e9finit comment les ordinateurs communiquent entre eux. Les protocoles r\u00e9seau d\u00e9finissent les formats de donn\u00e9es, les types de messages, les m\u00e9thodes d'authentification et les m\u00e9thodes de contr\u00f4le d'acc\u00e8s qui sont utilis\u00e9s pour assurer la s\u00e9curit\u00e9 et la fiabilit\u00e9 de la communication. Ils sont essentiels \u00e0 la communication entre les ordinateurs et des milliers de protocoles diff\u00e9rents ont \u00e9t\u00e9 d\u00e9velopp\u00e9s au fil du temps.\"\r\n    }\r\n  },{\r\n    \"@type\": \"Question\",\r\n    \"name\": \"Quel est le r\u00f4le des protocoles r\u00e9seau dans la communication ?\",\r\n    \"acceptedAnswer\": {\r\n      \"@type\": \"Answer\",\r\n      \"text\": \"Les protocoles r\u00e9seau sont essentiels \u00e0 la communication entre les ordinateurs, car ils permettent l\u2019envoi de messages standardis\u00e9s et efficaces. Sans protocoles r\u00e9seau, les ordinateurs auraient du mal \u00e0 communiquer de mani\u00e8re coh\u00e9rente et fiable. Ils permettent \u00e9galement de garantir la s\u00e9curit\u00e9 et la confidentialit\u00e9 des donn\u00e9es.\"\r\n    }\r\n  },{\r\n    \"@type\": \"Question\",\r\n    \"name\": \"Les diff\u00e9rents types de protocoles r\u00e9seau\",\r\n    \"acceptedAnswer\": {\r\n      \"@type\": \"Answer\",\r\n      \"text\": \"Les protocoles de couche application sont des protocoles qui permettent \u00e0 des programmes de s'envoyer des informations de mani\u00e8re structur\u00e9e et organis\u00e9e. Les protocoles de couche application sont souvent utilis\u00e9s pour la communication sur le web.\"\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>Les protocoles r\u00e9seau sont des r\u00e8gles et des normes qui permettent \u00e0 des ordinateurs de communiquer entre eux et de partager des donn\u00e9es. Ces protocoles sont utilis\u00e9s dans diff\u00e9rents types de r\u00e9seaux, tels que le r\u00e9seau local (LAN) et le r\u00e9seau \u00e9tendu (WAN) pour assurer la communication et la collaboration entre les utilisateurs. Mais qu\u2019est-ce [&hellip;]<\/p>\n","protected":false},"author":79,"featured_media":211022,"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>Protocoles R\u00e9seau : d\u00e9finition, fonctionnement et types<\/title>\n<meta name=\"description\" content=\"Qu\u2019est-ce qu\u2019un protocole r\u00e9seau ? Pourquoi sont-ils importants ? Quels sont les diff\u00e9rents types de protocoles r\u00e9seau ? R\u00e9ponses \u00e0 vos questions dans cet article.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/datascientest.com\/protocoles-reseau-tout-savoir\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Protocoles R\u00e9seau : d\u00e9finition, fonctionnement et types\" \/>\n<meta property=\"og:url\" content=\"https:\/\/datascientest.com\/protocoles-reseau-tout-savoir\" \/>\n<meta property=\"og:site_name\" content=\"Formation Data Science | DataScientest.com\" \/>\n<meta property=\"article:published_time\" content=\"2023-09-26T07:30:00+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2023-11-09T14:21:35+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/datascientest.com\/wp-content\/uploads\/2023\/07\/Illu_BLOG__protocole_reseau.png\" \/>\n\t<meta property=\"og:image:width\" content=\"1024\" \/>\n\t<meta property=\"og:image:height\" content=\"563\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"Dan Cohen\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\" \/>\n\t<meta name=\"twitter:data1\" content=\"Dan Cohen\" \/>\n\t<meta name=\"twitter:label2\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data2\" content=\"6 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/datascientest.com\/protocoles-reseau-tout-savoir\",\"url\":\"https:\/\/datascientest.com\/protocoles-reseau-tout-savoir\",\"name\":\"Protocoles R\u00e9seau : d\u00e9finition, fonctionnement et types\",\"isPartOf\":{\"@id\":\"https:\/\/datascientest.com\/#website\"},\"datePublished\":\"2023-09-26T07:30:00+00:00\",\"dateModified\":\"2023-11-09T14:21:35+00:00\",\"author\":{\"@id\":\"https:\/\/datascientest.com\/#\/schema\/person\/61997d589648bc1d367f632ba686e354\"},\"description\":\"Qu\u2019est-ce qu\u2019un protocole r\u00e9seau ? Pourquoi sont-ils importants ? Quels sont les diff\u00e9rents types de protocoles r\u00e9seau ? R\u00e9ponses \u00e0 vos questions dans cet article.\",\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/datascientest.com\/protocoles-reseau-tout-savoir\"]}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/datascientest.com\/#website\",\"url\":\"https:\/\/datascientest.com\/\",\"name\":\"Formation Data Science | DataScientest.com\",\"description\":\"Leader de la formation en Data Science\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/datascientest.com\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"fr-FR\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/datascientest.com\/#\/schema\/person\/61997d589648bc1d367f632ba686e354\",\"name\":\"Dan Cohen\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-FR\",\"@id\":\"https:\/\/datascientest.com\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/datascientest.com\/wp-content\/uploads\/2023\/11\/dancohen.jpeg\",\"contentUrl\":\"https:\/\/datascientest.com\/wp-content\/uploads\/2023\/11\/dancohen.jpeg\",\"caption\":\"Dan Cohen\"},\"description\":\"Dan Cohen est actuellement Data Engineer chez DataScientest. 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":"Protocoles R\u00e9seau : d\u00e9finition, fonctionnement et types","description":"Qu\u2019est-ce qu\u2019un protocole r\u00e9seau ? Pourquoi sont-ils importants ? Quels sont les diff\u00e9rents types de protocoles r\u00e9seau ? R\u00e9ponses \u00e0 vos questions dans cet article.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/datascientest.com\/protocoles-reseau-tout-savoir","og_locale":"fr_FR","og_type":"article","og_title":"Protocoles R\u00e9seau : d\u00e9finition, fonctionnement et types","og_url":"https:\/\/datascientest.com\/protocoles-reseau-tout-savoir","og_site_name":"Formation Data Science | DataScientest.com","article_published_time":"2023-09-26T07:30:00+00:00","article_modified_time":"2023-11-09T14:21:35+00:00","og_image":[{"width":1024,"height":563,"url":"https:\/\/datascientest.com\/wp-content\/uploads\/2023\/07\/Illu_BLOG__protocole_reseau.png","type":"image\/png"}],"author":"Dan Cohen","twitter_card":"summary_large_image","twitter_misc":{"\u00c9crit par":"Dan Cohen","Dur\u00e9e de lecture estim\u00e9e":"6 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/datascientest.com\/protocoles-reseau-tout-savoir","url":"https:\/\/datascientest.com\/protocoles-reseau-tout-savoir","name":"Protocoles R\u00e9seau : d\u00e9finition, fonctionnement et types","isPartOf":{"@id":"https:\/\/datascientest.com\/#website"},"datePublished":"2023-09-26T07:30:00+00:00","dateModified":"2023-11-09T14:21:35+00:00","author":{"@id":"https:\/\/datascientest.com\/#\/schema\/person\/61997d589648bc1d367f632ba686e354"},"description":"Qu\u2019est-ce qu\u2019un protocole r\u00e9seau ? Pourquoi sont-ils importants ? Quels sont les diff\u00e9rents types de protocoles r\u00e9seau ? R\u00e9ponses \u00e0 vos questions dans cet article.","inLanguage":"fr-FR","potentialAction":[{"@type":"ReadAction","target":["https:\/\/datascientest.com\/protocoles-reseau-tout-savoir"]}]},{"@type":"WebSite","@id":"https:\/\/datascientest.com\/#website","url":"https:\/\/datascientest.com\/","name":"Formation Data Science | DataScientest.com","description":"Leader de la formation en Data Science","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/datascientest.com\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"fr-FR"},{"@type":"Person","@id":"https:\/\/datascientest.com\/#\/schema\/person\/61997d589648bc1d367f632ba686e354","name":"Dan Cohen","image":{"@type":"ImageObject","inLanguage":"fr-FR","@id":"https:\/\/datascientest.com\/#\/schema\/person\/image\/","url":"https:\/\/datascientest.com\/wp-content\/uploads\/2023\/11\/dancohen.jpeg","contentUrl":"https:\/\/datascientest.com\/wp-content\/uploads\/2023\/11\/dancohen.jpeg","caption":"Dan Cohen"},"description":"Dan Cohen est actuellement Data Engineer chez DataScientest. 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"}]}},"_links":{"self":[{"href":"https:\/\/datascientest.com\/wp-json\/wp\/v2\/posts\/207368"}],"collection":[{"href":"https:\/\/datascientest.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/datascientest.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/datascientest.com\/wp-json\/wp\/v2\/users\/79"}],"replies":[{"embeddable":true,"href":"https:\/\/datascientest.com\/wp-json\/wp\/v2\/comments?post=207368"}],"version-history":[{"count":0,"href":"https:\/\/datascientest.com\/wp-json\/wp\/v2\/posts\/207368\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/datascientest.com\/wp-json\/wp\/v2\/media\/211022"}],"wp:attachment":[{"href":"https:\/\/datascientest.com\/wp-json\/wp\/v2\/media?parent=207368"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/datascientest.com\/wp-json\/wp\/v2\/categories?post=207368"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/datascientest.com\/wp-json\/wp\/v2\/tags?post=207368"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}