{"id":1012990,"date":"2023-09-04T18:35:12","date_gmt":"2023-09-04T18:35:12","guid":{"rendered":"https:\/\/beta-new.inhand.com\/?p=6779"},"modified":"2026-06-04T00:44:24","modified_gmt":"2026-06-04T00:44:24","slug":"why-do-we-need-routing-protocols","status":"publish","type":"post","link":"https:\/\/www.inhand.com\/fr\/support\/blogs\/why-do-we-need-routing-protocols","title":{"rendered":"Pourquoi avons-nous besoin d&#039;un protocole de routage\u00a0?"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"1012990\" class=\"elementor elementor-1012990\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-f5deb9f e-con-full anli_box e-flex e-con e-parent\" data-id=\"f5deb9f\" data-element_type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-6c1a9e e-con-full anli_box_l e-flex e-con e-child\" data-id=\"6c1a9e\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-34437fe7 elementor-widget-mobile__width-inherit elementor-widget elementor-widget-heading\" data-id=\"34437fe7\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Pourquoi avons-nous besoin d&#039;un protocole de routage\u00a0?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-3775149e e-con-full e-flex e-con e-child\" data-id=\"3775149e\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-10a10b91 elementor-widget elementor-widget-heading\" data-id=\"10a10b91\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Blogs<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-6bac9b35 e-con-full e-flex e-con e-child\" data-id=\"6bac9b35\" data-element_type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-788fe74d elementor-widget-mobile__width-inherit elementor-widget elementor-widget-heading\" data-id=\"788fe74d\" data-element_type=\"widget\" id=\"maodian1\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Points cl\u00e9s \u00e0 retenir<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-257fbef5 elementor-widget elementor-widget-heading\" data-id=\"257fbef5\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Comment les paquets IP qui circulent sur Internet, tels des voitures sur l&#039;autoroute, parviennent-ils \u00e0 destination\u00a0? De toute \u00e9vidence, ce sont les informations de routage OSPF qui font la diff\u00e9rence.<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-caa0db2 elementor-widget elementor-widget-text-editor\" data-id=\"caa0db2\" 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\t\t<p>Comment les paquets IP qui circulent sur Internet, \u00e0 l&#039;instar des voitures sur l&#039;autoroute, atteignent-ils leur destination\u00a0? Tout le monde conna\u00eet le principe des voitures\u00a0: m\u00eame sans conna\u00eetre la destination, un syst\u00e8me de navigation \u00e9lectronique nous y conduit. Les paquets IP ont-ils besoin d&#039;informations de navigation similaires\u00a0? Oui, d\u00e8s leur arriv\u00e9e sur Internet, les informations de navigation sont d\u00e9j\u00e0 en route, attendant patiemment leur arriv\u00e9e. Sur chaque routeur menant \u00e0 la destination, on peut consulter ces informations (table de routage) afin de d\u00e9terminer le chemin le plus court et d&#039;atteindre la destination \u00e9tape par \u00e9tape.<\/p>\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-7e69289 elementor-widget elementor-widget-image\" data-id=\"7e69289\" 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 fetchpriority=\"high\" decoding=\"async\" width=\"1400\" height=\"933\" src=\"https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/03\/routing.jpeg\" class=\"attachment-large size-large wp-image-960032\" alt=\"Illustration du d\u00e9placement des paquets IP \u00e0 travers un r\u00e9seau via les protocoles de routage OSPF\" srcset=\"https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/03\/routing.jpeg 1400w, https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/03\/routing-300x200.jpeg 300w, https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/03\/routing-768x512.jpeg 768w, https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/03\/routing-18x12.jpeg 18w, https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/03\/routing-600x400.jpeg 600w\" sizes=\"(max-width: 1400px) 100vw, 1400px\" \/>\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-ddc780d elementor-widget elementor-widget-text-editor\" data-id=\"ddc780d\" 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\t\t<p><strong>Qu&#039;est-ce qu&#039;une table de routage\u00a0?<\/strong><\/p><p>Maintenant que vous avez lu jusqu&#039;ici, vous vous posez s\u00fbrement une question\u00a0: comment est g\u00e9n\u00e9r\u00e9e la table de routage de chaque routeur\u00a0? Je n&#039;y r\u00e9pondrai pas tout de suite, mais je vais l&#039;analyser \u00e0 l&#039;aide d&#039;un syst\u00e8me de navigation \u00e9lectronique. Lorsque vous entrez votre destination, le syst\u00e8me de navigation utilise sa propre base de donn\u00e9es cartographiques pour calculer l&#039;itin\u00e9raire le plus court. Cette base de donn\u00e9es est pr\u00e9charg\u00e9e dans le syst\u00e8me, et il est parfois n\u00e9cessaire de la mettre \u00e0 jour, car le r\u00e9seau routier mondial \u00e9volue tr\u00e8s rapidement. Sans mise \u00e0 jour, vous risquez de vous retrouver sur des rivi\u00e8res ou en mer\u2026<\/p><p>Si chaque routeur dispose d&#039;informations de liaison similaires \u00e0 une base de donn\u00e9es cartographiques, il peut \u00e9galement utiliser l&#039;algorithme du plus court chemin pour effectuer la navigation. Le protocole d&#039;\u00e9change d&#039;informations de liaison entre les routeurs est appel\u00e9 protocole de routage. Cet article a pour but de vous familiariser avec ce protocole. Vous comprenez d\u00e9sormais le principe du routage, mais qu&#039;en est-il du protocole\u00a0? Le protocole sp\u00e9cifie comment exprimer les informations de liaison, le co\u00fbt du passage par chaque liaison et les routeurs situ\u00e9s \u00e0 chaque extr\u00e9mit\u00e9. Gr\u00e2ce \u00e0 ces informations, les routeurs peuvent g\u00e9n\u00e9rer dynamiquement une carte (diagramme topologique) de l&#039;ensemble du r\u00e9seau. Pour chaque destination, une entr\u00e9e de routage est g\u00e9n\u00e9r\u00e9e dynamiquement selon l&#039;algorithme du plus court chemin et enregistr\u00e9e dans une table\u00a0: la table de routage.<\/p><p>Ceux qui connaissent les protocoles de routage reconna\u00eetront ais\u00e9ment OSPF et IS-IS. Ils sont tr\u00e8s similaires\u00a0: ce sont tous deux des protocoles \u00e0 \u00e9tat de liens. Ils commencent par collecter les informations relatives aux liens entre les routeurs, telles que le co\u00fbt, les n\u0153uds connect\u00e9s \u00e0 chaque extr\u00e9mit\u00e9 et les types de liens, puis ex\u00e9cutent un algorithme similaire \u00e0 celui du plus court chemin pour g\u00e9n\u00e9rer les informations de la table de routage.<\/p><p><strong>Quel protocole de routage choisir ?<\/strong><\/p><p>Pourquoi sont-ils si similaires ? Ce sont deux accords d\u00e9velopp\u00e9s en parall\u00e8le par deux organisations diff\u00e9rentes. Aucun n&#039;a un avantage absolu, laissons donc le march\u00e9 les d\u00e9partager ! IS-IS pr\u00e9sente davantage d&#039;atouts en termes de d\u00e9veloppement de protocole et d&#039;\u00e9volutivit\u00e9, et OSPF risque d&#039;\u00eatre marginalis\u00e9.<\/p><p>Aujourd&#039;hui, plut\u00f4t que de d\u00e9battre du vainqueur, abordons la question initiale\u00a0: si OSPF et IS-IS sont ex\u00e9cut\u00e9s sur le m\u00eame routeur et g\u00e9n\u00e8rent tous deux des tables de routage pour la m\u00eame destination (m\u00eame adresse r\u00e9seau et m\u00eame masque de r\u00e9seau), laquelle est utilis\u00e9e\u00a0? Il s&#039;agit d&#039;un choix de priorit\u00e9 complexe. Chaque constructeur a sa propre m\u00e9thode. Cisco utilise un terme quelque peu \u00e9trange\u00a0: \u00ab\u00a0Distance d&#039;administration\u00a0\u00bb (AD) pour distinguer les priorit\u00e9s. La priorit\u00e9\u00a00 est la plus \u00e9lev\u00e9e, tandis que la priorit\u00e9\u00a0255 est la plus basse. OSPF utilise par d\u00e9faut le bit de priorit\u00e9\u00a0110, tandis qu&#039;IS-IS utilise par d\u00e9faut le bit\u00a0115. De toute \u00e9vidence, les informations de routage OSPF pr\u00e9valent. Prenons un exemple pour illustrer ce point\u00a0:<\/p><p>Route OSPF\u00a0: 10.1.1.0\/24 prochain saut aaaa AD 110<\/p><p>Route IS-IS\u00a0: 10.1.1.0\/24, prochain saut\u00a0: bbbb AD 115<\/p><p>Voici ce qui entre dans la table de routage\u00a0:<\/p><p><strong>Route OSPF\u00a0: 10.1.1.0\/24 prochain saut aaaa AD 110<\/strong><\/p><p>Ne vous m\u00e9prenez pas\u00a0: OSPF n&#039;a pas une priorit\u00e9 AD \u00e9lev\u00e9e et IS-IS une priorit\u00e9 AD faible. Si OSPF et IS-IS sont ex\u00e9cut\u00e9s simultan\u00e9ment, toutes les entr\u00e9es de routage IS-IS ne seront pas int\u00e9gr\u00e9es \u00e0 la table de routage. C&#039;est une erreur\u00a0! Seules les entr\u00e9es de routage \u00e9quivalentes peuvent utiliser la priorit\u00e9 AD pour d\u00e9terminer leur maintien ou non. Si elles ne sont pas \u00e9quivalentes, la priorit\u00e9 AD n&#039;est pas prise en compte.<\/p><p>Bien s\u00fbr, d&#039;autres protocoles peuvent \u00eatre en comp\u00e9tition pour entrer dans la table de routage : RIP (120), EIGRP (90), BGP (20, 200), ainsi que la route directement connect\u00e9e (0) et la route statique (1), avec leur priorit\u00e9 AD et BGP externe entre parenth\u00e8ses.<\/p><p>20 et 200 pour le BGP interne. Actuellement, la priorit\u00e9 AD des protocoles de routage courants est\u00a0:<\/p><p>Route directe &gt; route statique &gt; EBGP &gt; EIGRP &gt; OSPF &gt; ISIS &gt; RIP &gt; IBGP<\/p><p><strong>Quel est le meilleur prochain saut ?<\/strong><\/p><p>Apr\u00e8s avoir abord\u00e9 la table de routage, voyons comment les paquets IP arrivent au routeur, comment consulter cette table et comment les acheminer. Comment trouver le prochain saut avec un maximum d&#039;efficacit\u00e9 et de pr\u00e9cision\u00a0?<br \/>Si la table de routage contient les cinq entr\u00e9es suivantes et que l&#039;adresse de destination du paquet IP est 10.1.1.1, quelle entr\u00e9e la table de routage choisira-t-elle\u00a0? Selon la r\u00e8gle de correspondance du pr\u00e9fixe le plus long, 10.1.1.1\/32 sera s\u00e9lectionn\u00e9e car il s&#039;agit d&#039;une correspondance exacte, c&#039;est-\u00e0-dire une correspondance sur 32\u00a0bits.<br \/>Si l&#039;adresse de destination du paquet IP est\u00a0: 10.1.1.100, 10.1.1.0\/24 sera s\u00e9lectionn\u00e9, qui est la correspondance la plus longue et correspond \u00e0 24 bits.<br \/>Si l&#039;adresse de destination du paquet IP est\u00a0: 10.1.2.100, 10.1.0.0\/16 sera s\u00e9lectionn\u00e9, qui est la correspondance la plus longue, avec 16 bits correspondants.<br \/>Si l&#039;adresse de destination du paquet IP est\u00a0: 10.2.1.100, 10.0.0\/8 sera s\u00e9lectionn\u00e9, qui est la correspondance la plus longue, avec 8 bits correspondants.<br \/>Si l&#039;adresse de destination du paquet IP est\u00a0: 192.168.1.1, l&#039;interface 0.0.0\/0 sera s\u00e9lectionn\u00e9e, car il s&#039;agit de la route par d\u00e9faut et elle peut correspondre \u00e0 n&#039;importe quelle adresse de destination IP.<br \/>10.1.1.1\/32<br \/>10.1.1.0\/24<br \/>10.1.0.0\/16<br \/>10.0.0.0\/8<br \/>0.0.0.0\/0<br \/>Nous avons une br\u00e8ve compr\u00e9hension de ce que sont le protocole de routage, le protocole de routage AD et la r\u00e8gle de correspondance de pr\u00e9fixe la plus longue pour la recherche de routage, et le prochain article pr\u00e9sentera le protocole \u00e0 \u00e9tat de liens OSPF.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-1e87d53 e-con-full e-flex e-con e-child\" data-id=\"1e87d53\" data-element_type=\"container\">\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-a14c13b e-con-full anli_l_st e-flex e-con e-child\" data-id=\"a14c13b\" data-element_type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;,&quot;sticky&quot;:&quot;top&quot;,&quot;sticky_offset&quot;:90,&quot;sticky_effects_offset&quot;:100,&quot;sticky_anchor_link_offset&quot;:100,&quot;sticky_parent&quot;:&quot;yes&quot;,&quot;sticky_on&quot;:[&quot;desktop&quot;,&quot;tablet&quot;,&quot;mobile&quot;]}\">\n\t\t<div class=\"elementor-element elementor-element-1da7e082 e-con-full e-flex e-con e-child\" data-id=\"1da7e082\" data-element_type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-69473ed elementor-widget elementor-widget-heading\" data-id=\"69473ed\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">En savoir plus <\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-108ac635 elementor-widget elementor-widget-shortcode\" data-id=\"108ac635\" data-element_type=\"widget\" data-widget_type=\"shortcode.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-shortcode\">    <style>\n        \/* --- \u8fd9\u91cc\u7684\u53c2\u6570\u5168\u90e8\u4fdd\u7559\u4f60\u7684\u4fee\u6539 --- *\/\n        .vpro-wrapper {\n            width: 100%;\n            max-width: 25rem;\n            height: 38.5rem;\n            overflow-y: auto;\n            overflow-x: hidden;\n            \/* 1. \u589e\u52a0\u5e95\u90e8\u5185\u8fb9\u8ddd\uff0c\u5236\u9020\u865a\u7a7a\u611f *\/\n            padding: 0.3125rem 0.3125rem 0rem 0.3125rem;\n            scrollbar-width: thin;\n            box-sizing: border-box;\n        }\n\n        .vpro-wrapper::-webkit-scrollbar { width: 0.25rem; }\n        .vpro-wrapper::-webkit-scrollbar-thumb { background: #ccc; border-radius: 0.625rem; }\n\n        .vpro-item {\n            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class=\"vpro-wrapper\">\n                    <div class=\"vpro-item\">\n                <div class=\"vpro-img-box\">\n                    <a href=\"https:\/\/www.inhand.com\/fr\/cases\/road-monitoring-sd-wan\">\n                                                    <img decoding=\"async\" width=\"1360\" height=\"540\" src=\"https:\/\/www.inhand.com\/wp-content\/uploads\/2023\/10\/SD-WAN-networking-facilitates-distributed-road-monitoring.png\" class=\"attachment-full size-full wp-post-image\" alt=\"Sites de surveillance routi\u00e8re distribu\u00e9s connect\u00e9s via la solution SD-WAN d&#039;InHand\" srcset=\"https:\/\/www.inhand.com\/wp-content\/uploads\/2023\/10\/SD-WAN-networking-facilitates-distributed-road-monitoring.png 1360w, https:\/\/www.inhand.com\/wp-content\/uploads\/2023\/10\/SD-WAN-networking-facilitates-distributed-road-monitoring-300x119.png 300w, https:\/\/www.inhand.com\/wp-content\/uploads\/2023\/10\/SD-WAN-networking-facilitates-distributed-road-monitoring-768x305.png 768w, https:\/\/www.inhand.com\/wp-content\/uploads\/2023\/10\/SD-WAN-networking-facilitates-distributed-road-monitoring-18x7.png 18w, https:\/\/www.inhand.com\/wp-content\/uploads\/2023\/10\/SD-WAN-networking-facilitates-distributed-road-monitoring-600x238.png 600w\" sizes=\"(max-width: 1360px) 100vw, 1360px\" \/>                                            <\/a>\n                <\/div>\n                <div class=\"vpro-content\">\n                    <div class=\"vpro-title\">\n                        <a href=\"https:\/\/www.inhand.com\/fr\/cases\/road-monitoring-sd-wan\">R\u00e9seau SD-WAN pour la surveillance routi\u00e8re distribu\u00e9e<\/a>\n                    <\/div>\n                <\/div>\n            <\/div>\n                    <div class=\"vpro-item\">\n                <div class=\"vpro-img-box\">\n                    <a href=\"https:\/\/www.inhand.com\/fr\/industries\/intelligent-public-transport-system-2\">\n                                                    <div style=\"width:100%;height:100%;display:flex;align-items:center;justify-content:center;background:#eee;color:#999;\">Aucune image<\/div>\n                                            <\/a>\n                <\/div>\n                <div class=\"vpro-content\">\n                    <div class=\"vpro-title\">\n                        <a href=\"https:\/\/www.inhand.com\/fr\/industries\/intelligent-public-transport-system-2\">Syst\u00e8me de transport public intelligent<\/a>\n                    <\/div>\n                <\/div>\n            <\/div>\n                    <div class=\"vpro-item\">\n                <div class=\"vpro-img-box\">\n                    <a href=\"https:\/\/www.inhand.com\/fr\/cases\/wireless-connectivity-for-dr-imaging-device\">\n                                                    <img decoding=\"async\" width=\"1780\" height=\"660\" src=\"https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/05\/Wireless-Connectivity-for-DR-Imaging-Device-banner.jpg\" class=\"attachment-full size-full wp-post-image\" alt=\"\" srcset=\"https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/05\/Wireless-Connectivity-for-DR-Imaging-Device-banner.jpg 1780w, https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/05\/Wireless-Connectivity-for-DR-Imaging-Device-banner-300x111.jpg 300w, https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/05\/Wireless-Connectivity-for-DR-Imaging-Device-banner-768x285.jpg 768w, https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/05\/Wireless-Connectivity-for-DR-Imaging-Device-banner-1536x570.jpg 1536w, https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/05\/Wireless-Connectivity-for-DR-Imaging-Device-banner-18x7.jpg 18w, https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/05\/Wireless-Connectivity-for-DR-Imaging-Device-banner-600x222.jpg 600w\" sizes=\"(max-width: 1780px) 100vw, 1780px\" \/>   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https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/05\/5G-Connectivity-for-Small-Retail-Stores-banner-768x285.jpg 768w, https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/05\/5G-Connectivity-for-Small-Retail-Stores-banner-1536x570.jpg 1536w, https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/05\/5G-Connectivity-for-Small-Retail-Stores-banner-18x7.jpg 18w, https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/05\/5G-Connectivity-for-Small-Retail-Stores-banner-600x222.jpg 600w\" sizes=\"(max-width: 1780px) 100vw, 1780px\" \/>                                            <\/a>\n                <\/div>\n                <div class=\"vpro-content\">\n                    <div class=\"vpro-title\">\n                        <a href=\"https:\/\/www.inhand.com\/fr\/cases\/5g-connectivity-for-small-retail-stores\">La connectivit\u00e9 5G pour les petits commerces de d\u00e9tail<\/a>\n                    <\/div>\n                <\/div>\n            <\/div>\n                    <div class=\"vpro-item\">\n                <div class=\"vpro-img-box\">\n                    <a href=\"https:\/\/www.inhand.com\/fr\/cases\/5g-connectivity-for-rv-travel\">\n                                                    <img loading=\"lazy\" decoding=\"async\" width=\"1780\" height=\"660\" src=\"https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/05\/5G-Connectivity-for-RV-Travel-banner.jpg\" class=\"attachment-full size-full wp-post-image\" alt=\"\" srcset=\"https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/05\/5G-Connectivity-for-RV-Travel-banner.jpg 1780w, https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/05\/5G-Connectivity-for-RV-Travel-banner-300x111.jpg 300w, https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/05\/5G-Connectivity-for-RV-Travel-banner-768x285.jpg 768w, https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/05\/5G-Connectivity-for-RV-Travel-banner-1536x570.jpg 1536w, https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/05\/5G-Connectivity-for-RV-Travel-banner-18x7.jpg 18w, https:\/\/www.inhand.com\/wp-content\/uploads\/2026\/05\/5G-Connectivity-for-RV-Travel-banner-600x222.jpg 600w\" sizes=\"(max-width: 1780px) 100vw, 1780px\" \/>                                            <\/a>\n                <\/div>\n                <div class=\"vpro-content\">\n                    <div class=\"vpro-title\">\n                        <a href=\"https:\/\/www.inhand.com\/fr\/cases\/5g-connectivity-for-rv-travel\">La connectivit\u00e9 5G pour les voyages en camping-car<\/a>\n                    <\/div>\n                <\/div>\n            <\/div>\n        \n        <div class=\"vpro-bottom-spacer\"><\/div>\n    <\/div>\n    <\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>Why Do We Need the Routing Protocol? How do the IP packets traveling through the Internet, like cars on the highway, get to their destination? Everyone is familiar with cars. Even if we don\u2019t know the destination, there is an electronic &#8230; What is the Routing table? Now that you\u2019ve read so far, you must [&hellip;]<\/p>","protected":false},"author":1,"featured_media":960030,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"elementor_header_footer","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[817],"tags":[],"case_tag":[],"class_list":["post-1012990","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blogs"],"blocksy_meta":[],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.6 (Yoast SEO v26.6) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>OSPF vs IS-IS: Routing Protocol Priority &amp; AD Comparison<\/title>\n<meta name=\"description\" content=\"Compare OSPF and IS-IS routing protocols. 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