{"id":33406,"date":"2019-09-25T13:42:32","date_gmt":"2019-09-25T10:12:32","guid":{"rendered":"https:\/\/airoserver.com\/?p=1437"},"modified":"2022-04-04T09:29:48","modified_gmt":"2022-04-04T04:59:48","slug":"what-are-tcp-and-udp","status":"publish","type":"post","link":"https:\/\/airoserver.com\/fr\/dedie\/quest-ce-que-le-tcp-et-ludp\/","title":{"rendered":"Qu'est-ce que TCP et UDP ?"},"content":{"rendered":"<p>TCP (Transmission Control Protocol) et UDP (User Datagram Protocol) sont deux protocoles importants. <a href=\"https:\/\/en.wikipedia.org\/wiki\/Protocol\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"protocoles (s&#039;ouvre dans un nouvel onglet)\">protocoles<\/a> de l'Internet. Dans le mod\u00e8le OSI, ces deux protocoles se trouvent dans la couche Transport, ce qui signifie qu'ils servent \u00e0 transf\u00e9rer des donn\u00e9es. Cela signifie que ces protocoles servent \u00e0 transf\u00e9rer des donn\u00e9es. Afin de vous expliquer les diff\u00e9rences entre ces deux protocoles, nous devons d'abord vous expliquer ce qu'est le TCP.<\/p>\r\n\r\n\r\n\r\n<div class=\"wp-block-image\">\r\n<figure class=\"aligncenter\"><img decoding=\"async\" class=\"wp-image-1439\" src=\"https:\/\/airoserver.com\/wp-content\/uploads\/2019\/09\/1_17Zz6v0HWIzgiOzQYmO6lA.jpg\" alt=\"Mod\u00e8le OSI\" \/><\/figure>\r\n<\/div>\r\n\r\n\r\n\r\n<h4 class=\"wp-block-heading\"><strong>Que fait TCP ?<\/strong><\/h4>\r\n\r\n\r\n\r\n<p>Ce protocole d\u00e9finit la mani\u00e8re dont les programmes d'application peuvent \u00e9tablir une conversation r\u00e9seau et la maintenir. Les programmes d'application \u00e9changent des donn\u00e9es par l'interm\u00e9diaire de cette conversation r\u00e9seau. Ainsi, lorsque les programmes d'application veulent s'envoyer des donn\u00e9es, ce protocole fait tout ce qui est n\u00e9cessaire pour cet \u00e9change de donn\u00e9es.<\/p>\r\n\r\n\r\n\r\n<h4 class=\"wp-block-heading\"><strong>Comment cela fonctionne-t-il ?<\/strong><\/h4>\r\n\r\n\r\n\r\n<p>TCP fonctionne avec <a href=\"https:\/\/airoserver.com\/fr\/blog\/what-is-ip\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\" (s&#039;ouvre dans un nouvel onglet)\">IP <\/a>(Internet Protocol). Ce protocole d\u00e9finit la mani\u00e8re dont les ordinateurs s'envoient des paquets les uns aux autres, ce qui signifie que lorsqu'un programme d'application (<a href=\"https:\/\/airoserver.com\/fr\/dedie\/serveur-web\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\" (s&#039;ouvre dans un nouvel onglet)\">Serveur web<\/a>) veut envoyer des donn\u00e9es, il demande \u00e0 la couche TCP de le faire. La pile TCP divise le fichier en paquets, les num\u00e9rote et les transmet \u00e0 la couche IP pour livraison.<\/p>\r\n\r\n\r\n\r\n<p>Ce protocole est un protocole orient\u00e9 connexion. Cela signifie que la connexion est maintenue jusqu'\u00e0 ce que les programmes d'application \u00e0 chaque extr\u00e9mit\u00e9 aient fini d'\u00e9changer des messages.<\/p>\r\n\r\n\r\n\r\n<h4 class=\"wp-block-heading\"><strong>Caract\u00e9ristiques :<\/strong><\/h4>\r\n\r\n\r\n\r\n<p>Il peut y avoir des probl\u00e8mes pendant le processus de transmission (certains paquets peuvent \u00eatre perdus, dupliqu\u00e9s ou livr\u00e9s dans le d\u00e9sordre). (Le protocole TCP est capable de d\u00e9tecter ces probl\u00e8mes et de les r\u00e9soudre. Le TCP est capable de d\u00e9tecter ces probl\u00e8mes et de les r\u00e9soudre : Lorsqu'un paquet est perdu, il demande la retransmission des donn\u00e9es perdues.<\/p>\r\n\r\n\r\n\r\n<p>Le TCP peut contribuer \u00e0 minimiser la congestion du r\u00e9seau afin de pr\u00e9venir et de r\u00e9duire les probl\u00e8mes mentionn\u00e9s. Apr\u00e8s tout cela, si les donn\u00e9es n'ont pas \u00e9t\u00e9 livr\u00e9es, il en informera l'exp\u00e9diteur.<\/p>\r\n\r\n\r\n\r\n<h4 class=\"wp-block-heading\"><strong>Diff\u00e9rences entre UDP et TCP : <\/strong><\/h4>\r\n\r\n\r\n\r\n<ol class=\"wp-block-list\">\r\n<li>UDP est un service sans connexion. Cela signifie qu'UDP ne peut pas trouver ou r\u00e9duire les probl\u00e8mes tels que la perte de paquets. Ce protocole se contente d'envoyer les paquets \u00e0 tour de r\u00f4le et ne v\u00e9rifie pas s'ils ont \u00e9t\u00e9 livr\u00e9s ou non.<\/li>\r\n<li>En raison de la diff\u00e9rence mentionn\u00e9e ci-dessus, UDP peut \u00eatre plus rapide. En effet, il n'attend pas de s'assurer qu'un paquet a \u00e9t\u00e9 livr\u00e9 et de r\u00e9soudre les \u00e9ventuels probl\u00e8mes.<\/li>\r\n<\/ol>\r\n\r\n\r\n\r\n<p>Enfin, nous ne pouvons pas vous dire quel est le meilleur protocole. Nous pouvons seulement dire que si vous envoyez des donn\u00e9es pour lesquelles seule la vitesse compte, utilisez UDP. mais si la livraison de tous les paquets compte pour vous, il est pr\u00e9f\u00e9rable d'utiliser TCP.<\/p>\r\n\r\n\r\n\r\n<p>J'esp\u00e8re que cet article vous a \u00e9t\u00e9 utile !<\/p>","protected":false},"excerpt":{"rendered":"<p>TCP (Transmission Control Protocol) et UDP (User Datagram Protocol) sont deux protocoles importants d'Internet. Dans le mod\u00e8le OSI, ils se situent tous deux dans la couche Transport, ce qui signifie que ces protocoles servent \u00e0 transf\u00e9rer des donn\u00e9es. Afin de vous expliquer les diff\u00e9rences entre ces deux protocoles, nous devons d'abord vous expliquer ce qu'est le TCP. Qu'est-ce que TCP [...]<\/p>","protected":false},"author":5,"featured_media":33981,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"footnotes":""},"categories":[179,176,182,178],"tags":[85,184],"class_list":["post-33406","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-airoserver","category-dedicated","category-shared-hosting","category-airo-vps","tag-airoserver","tag-network"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v22.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>What are TCP and UDP? - Airoserver | Cloud Hosting Solutions<\/title>\n<meta name=\"description\" content=\"TCP and UDP are two important protocols of the Internet. In OSI model Both of these are in Transport layer. 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