{"id":2204,"date":"2020-04-24T14:44:57","date_gmt":"2020-04-24T11:44:57","guid":{"rendered":"https:\/\/vasexperts-ru.hst11.itglobal.com\/blog\/%d0%b1%d0%b5%d0%b7-%d1%80%d1%83%d0%b1%d1%80%d0%b8%d0%ba%d0%b8\/qos-management-helps-operators-pandemic\/"},"modified":"2025-08-11T14:14:04","modified_gmt":"2025-08-11T11:14:04","slug":"qos-management-helps-operators-pandemic","status":"publish","type":"post","link":"https:\/\/vasexperts.com\/fr\/blog\/quality-of-service\/qos-management-helps-operators-pandemic\/","title":{"rendered":"La gestion de la QoS aide les op\u00e9rateurs pendant la pand\u00e9mie"},"content":{"rendered":"La bande passante du canal est pratiquement consomm\u00e9e lorsque les utilisateurs commencent \u00e0 regarder youtube, \u00e0 jouer \u00e0 des jeux en ligne ou \u00e0 travailler \u00e0 domicile. Il en r\u00e9sulte des sessions al\u00e9atoires rompant avec un son et une vid\u00e9o b\u00e9gayants, une mauvaise qualit\u00e9 de connexion, un chargement lent des pages Web et aga\u00e7ant les abonn\u00e9s.\r\n\r\nLa solution est de contr\u00f4ler la qualit\u00e9 en priorisant le trafic dans le canal commun.\r\n\r\n<a href=\"\/products\/stingray\/qos-quality-of-service\/\" rel=\"noopener noreferrer\" target=\"_blank\">Quality Of Service<\/a> est une technologie qui donne la priorit\u00e9 \u00e0 tout le trafic et fournit les applications, protocoles et directions les plus populaires avec une bande passante plus large. Cela permet aux fournisseurs d\u2019acc\u00e8s Internet de maintenir la qualit\u00e9 de <a href=\"\/products\/qoe-analytics\/\" rel=\"noopener noreferrer\" target=\"_blank\">l\u2019exp\u00e9rience des utilisateurs (QOE)<\/a> sans modifier la configuration du r\u00e9seau.\r\n<h3>Avantages:<\/h3>\r\n<ul>\r\n \t<li>d\u00e9marrage rapide<\/li>\r\n \t<li>pas besoin d\u2019int\u00e9grer le syst\u00e8me de facturation<\/li>\r\n \t<li>le r\u00e9sultat est la pr\u00e9servation de la capacit\u00e9 du canal malgr\u00e9 l\u2019augmentation de la consommation de volume de trafic.<\/li>\r\n<\/ul>\r\n[product id=\u00a0\u00bb2486\u2033]\r\n<h2>\u00c9tude de cas<\/h2>\r\nPeu de temps apr\u00e8s l\u2019annonce de la pand\u00e9mie, un fournisseur de services haut d\u00e9bit du Liban nous a contact\u00e9s. L\u2019op\u00e9rateur fournit un acc\u00e8s Internet \u00e0 un nombre suffisamment important d\u2019abonn\u00e9s (environ 2,5 mille), tout en ayant une largeur de canal de 250 Mbps) Il n\u2019y avait aucune possibilit\u00e9 technique d\u2019\u00e9tendre le canal externe.\r\n\r\nApr\u00e8s que les entreprises locales ont transf\u00e9r\u00e9 des employ\u00e9s au travail \u00e0 distance, la quantit\u00e9 de trafic a consid\u00e9rablement augment\u00e9. Pour les abonn\u00e9s, cela a entra\u00een\u00e9 une baisse de la qualit\u00e9 de la connexion Internet : la gigue a augment\u00e9, des retards tangibles (plus de 100 ms) sont apparus. Les clients ont commenc\u00e9 \u00e0 se plaindre de la lenteur du chargement, des probl\u00e8mes de visionnage de vid\u00e9os et de jeux en ligne.\r\n\r\nIl y avait deux mani\u00e8res possibles de r\u00e9soudre le probl\u00e8me:\r\n<ol>\r\n \t<li>Louer un canal plus large aupr\u00e8s du fournisseur de liaison montante et mettre \u00e0 niveau l\u2019\u00e9quipement. Cette solution est techniquement difficile et prend trop de temps.<\/li>\r\n \t<li>Utiliser le r\u00e9gulateur VAS Experts, qui permet de prioriser les protocoles et d\u2019utiliser correctement la largeur disponible. De cette fa\u00e7on, vous pouvez utiliser la largeur de canal existante sans remplacer l\u2019\u00e9quipement et avoir un co\u00fbt plus bas.<\/li>\r\n<\/ol>\r\nApr\u00e8s l\u2019installation de DPI et du module QoE, nos ing\u00e9nieurs ont commenc\u00e9 \u00e0 analyser le r\u00e9seau pour trouver les services et protocoles les plus populaires. Les priorit\u00e9s les plus \u00e9lev\u00e9es ont \u00e9t\u00e9 choisies pour ces services et d\u2019autres services essentiels. Cela inclut les messagers\\Facebook pour rester en contact avec vos coll\u00e8gues et votre famille et VPN pour le travail \u00e0 distance. Les priorit\u00e9s inf\u00e9rieures ont \u00e9t\u00e9 attribu\u00e9es aux services insensibles au facteur temps.\r\n\r\n<noscript><img decoding=\"async\" src=\"\/wp-content\/uploads\/2020\/07\/protocols-analysis-1140x562-1.png\" alt=\"Protocols analysis\" width=\"100%\" class=\"alignnone size-large wp-image-2051\"><\/noscript><img decoding=\"async\" src=\"\/wp-content\/uploads\/2020\/07\/protocols-analysis-1140x562-1.png\" alt=\"Protocols analysis\" width=\"100%\" class=\"alignnone size-large wp-image-2051 lazyload\" data-src=\"\/wp-content\/uploads\/2020\/07\/protocols-analysis-1140x562-1.png\">\r\n\r\nL\u2019analyse a donn\u00e9 l\u2019image suivante:\r\n<pre>ftp cs0\r\nssh cs0\r\ndns cs0\r\nHOLAVPN cs0\r\nHOTSPOTVPN cs0\r\nIPv6-ICMP cs0\r\nwebaccess cs0\r\nopenvpn cs0\r\nxmpp-client cs0\r\nicmpd cs0\r\ncslistener cs0\r\nstun-behavior cs0\r\nipsec-nat-t cs0\r\nghvpn cs0\r\nICMP cs0\r\nICMPv6 cs0\r\nGRE cs0\r\nCHAMELEON cs0\r\nOPENVPN_UDP cs0\r\n\r\nxbox cs1\r\nsavant cs1\r\nQUIC cs1\r\nTELEGRAM cs1\r\nsip cs1\r\ncommtact-http cs1\r\n\r\nWHATSAPP cs2\r\nl2tp cs2\r\npptp cs2\r\nESP cs2\r\nAH cs2\r\nmicrosoft-ds\/smb cs2\r\nisakmp cs2\r\npkt-krb-ipsec cs2\r\nUDP Unknown cs2\r\nWHATSAPP_VOICE cs2\r\nVIBER_VSTREAMS cs2\r\nFACEBOOK cs2\r\nFACEBOOK_TRACK cs2\r\nFACEBOOK_APPS cs2\r\nFACEBOOK_CHAT cs2\r\nVIBER cs2\r\nSkype cs2\r\n\r\nTCP Unknown cs3\r\nRTP cs3\r\nhttps cs3\r\nSSL Unknown cs3\r\n\r\nGOOGLEVIDEO cs4\r\n\r\nhttp cs5\r\n\r\ndefault cs6\r\n\r\nBittorrent cs7\r\n<\/pre>\r\nIl faut mentionner le protocole Netflix qui ne devient pas une priorit\u00e9 \u00e9lev\u00e9e. Le fait est que Netflix utilise des protocoles natifs pour certaines plateformes de streaming (Windows, IOS, Android, etc.). La prise en charge de tels protocoles est en cours de d\u00e9veloppement.\r\n\r\nPar cons\u00e9quent, une solution bas\u00e9e sur DPI offre la possibilit\u00e9 de hi\u00e9rarchiser avec l\u2019utilisation ult\u00e9rieure de la police en fonction des signatures de protocole et de la direction du trafic.\r\n<h2>Que signifie la hi\u00e9rarchisation par sens de traffic?<\/h2>\r\nLa plateforme DPI peut d\u00e9terminer une plage d\u2019AS, vers laquelle le trafic est consid\u00e9r\u00e9 comme une priorit\u00e9 plus \u00e9lev\u00e9e.\r\n\r\nEn revenant \u00e0 Netflix, l\u2019exp\u00e9rience montre que ce service poss\u00e8de son propre AS (ASN 2906). Il ne nous reste plus qu\u2019\u00e0 d\u00e9finir la priorit\u00e9 attribu\u00e9e au trafic pour cet AS.\r\n\r\nComme Stingray Service Gateway dispose d\u00e9j\u00e0 d\u2019une liste mise \u00e0 jour automatiquement des syst\u00e8mes autonomes globaux, il suffit d\u2019indiquer le num\u00e9ro de cet AS et sa priorit\u00e9. DPI vous permet \u00e9galement de combiner des sous-r\u00e9seaux d\u2019op\u00e9rateurs dans des AS locaux.\r\n\r\nEn fin de compte, la hi\u00e9rarchisation par direction est ce que suit:\r\n<pre>2906 cs3\r\n2914 cs1\r\n16509 cs1\r\n65502 cs1\r\n65503 cs1\r\n65504 cs1\r\n65505 cs1\r\n132203 cs1<\/pre>\r\nPour terminer la configuration, il faut d\u00e9finir des r\u00e8gles de police pour chaque classe:\r\n\r\nLa limite est de 240 Mbps pour le trafic sortant total.\r\nPour les classes:\r\n<pre>Class 0 \u2013 rate 20 Mbps ceil 240 Mbps \r\nClass 1 \u2013 rate 40 Mbps  ceil 240 Mbps\r\nClass 2 \u2013 rate 70 Mbps  ceil 240 Mbps\r\nClass 3 \u2013 rate 83 Mbps ceil 240 Mbps\r\nClass 4 \u2013 rate 20 Mbps ceil 240 Mbps\r\nClass 5 \u2013 rate 5 Mbps ceil 240 Mbps\r\nClass 6 \u2013 rate 1 Mbps ceil 240 Mbps\r\nClass 7 \u2013 rate 1 Mbps ceil 240 Mbps<\/pre>\r\nPour le trafic entrant total, la limite est \u00e9galement de 240 Mbps.\r\nEt de m\u00eame pour les classes:\r\n<pre>Class 0 \u2013 rate 20 Mbps ceil 240 Mbps\r\nClass 1 \u2013 rate 40 Mbps ceil 240 Mbps\r\nClass 2 \u2013 rate 70 Mbps ceil 240 Mbps\r\nClass 3 \u2013 rate 83 Mbps ceil 240 Mbps\r\nClass 4 \u2013 rate 20 Mbps ceil 240 Mbps\r\nClass 5 \u2013 rate 5 Mbps ceil 240 Mbps\r\nClass 6 \u2013 rate 1 Mbps ceil 240 Mbps\r\nClass 7 \u2013 rate 1 Mbps ceil 240 Mbps<\/pre>\r\nApr\u00e8s la mise en \u0153uvre de <a href=\"\/products\/stingray\/\" rel=\"noopener noreferrer\" target=\"_blank\">Stingray SG<\/a> avec Quality of Service, la situation s\u2019est am\u00e9lior\u00e9e: les retards ont diminu\u00e9 et la gigue s\u2019est r\u00e9duite. De plus, le nombre de plaintes des abonn\u00e9s a diminu\u00e9 \u2013 les probl\u00e8mes de chargement lent et de retard dans les jeux en ligne ont \u00e9t\u00e9 \u00e9limin\u00e9s.\r\n\r\n[subscription id=\u00a0\u00bb11987\u2033]Abonnez-vous \u00e0 notre newsletter et restez inform\u00e9 des derniers d\u00e9veloppements et offres sp\u00e9ciales.[\/subscription]","protected":false},"excerpt":{"rendered":"<p>La disponibilit\u00e9 et la qualit\u00e9 de la connexion Internet sont les principaux indicateurs du travail du fournisseur de haut d\u00e9bit.<\/p>\n","protected":false},"author":1,"featured_media":2205,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[54],"tags":[],"class_list":["post-2204","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-quality-of-service"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.1 - 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