{"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\/br\/blog\/quality-of-service\/qos-management-helps-operators-pandemic\/","title":{"rendered":"Gerenciamento de QoS auxilia operadoras durante a pandemia"},"content":{"rendered":"La bande passante du canal est consid\u00e9rablement consomm\u00e9e lorsque les utilisateurs commencent \u00e0 regarder YouTube, \u00e0 jouer \u00e0 des jeux en ligne ou \u00e0 travailler \u00e0 domicile. Cela entra\u00eene des sessions al\u00e9atoires interrompues avec des saccades audio et vid\u00e9o, une mauvaise qualit\u00e9 de connexion, des chargements de pages web lents et un certain agacement pour les abonn\u00e9s.\r\n\r\nLa solution consiste \u00e0 contr\u00f4ler la qualit\u00e9 en priorisant le trafic sur un canal commun.\r\n\r\n<a href=\"\/br\/products\/stingray\/qos-quality-of-service\/\" rel=\"noopener noreferrer\" target=\"_blank\">La Qualit\u00e9 de Service<\/a> est une technologie qui priorise l\u2019ensemble du trafic et fournit une bande passante plus large aux applications, protocoles et directions les plus populaires. Cela permet aux fournisseurs d\u2019acc\u00e8s Internet de maintenir la <a href=\"\/products\/qoe-analytics\/\" rel=\"noopener noreferrer\" target=\"_blank\">qualit\u00e9 de l\u2019exp\u00e9rience utilisateur (QOE)<\/a> sans modifier la configuration du r\u00e9seau.\r\n<h3>Avantages\u00a0:<\/h3>\r\n<ul>\r\n<li>d\u00e9marrage rapide<\/li>\r\n<li>aucune int\u00e9gration n\u00e9cessaire au syst\u00e8me de facturation<\/li>\r\n<li>la capacit\u00e9 du canal est pr\u00e9serv\u00e9e malgr\u00e9 l\u2019augmentation du volume de trafic.<\/li>\r\n<\/ul>\r\n\r\n[product id=\u201d2486\u2033]\r\n\r\n<h2>Estudo de caso<\/h2>\r\nLogo ap\u00f3s o an\u00fancio da pandemia, um provedor de banda larga do L\u00edbano entrou em contato conosco. A operadora fornece acesso \u00e0 internet a um n\u00famero suficientemente grande de assinantes (cerca de 2,5 mil), com uma largura de canal de 250 Mbps. N\u00e3o h\u00e1 possibilidade t\u00e9cnica de expandir o canal externo.\r\n\r\nAp\u00f3s as empresas locais transferirem seus funcion\u00e1rios para o trabalho remoto, o volume de tr\u00e1fego aumentou significativamente. Para os assinantes, isso levou \u00e0 redu\u00e7\u00e3o da qualidade da conex\u00e3o \u00e0 internet: o jitter aumentou e surgiram atrasos tang\u00edveis (mais de 100 ms). Os clientes come\u00e7aram a reclamar de carregamento lento, problemas ao assistir a v\u00eddeos e jogar online.\r\n\r\nHavia duas maneiras poss\u00edveis de resolver o problema:\r\n<ol>\r\n<li>Alugar um canal mais amplo do provedor de uplink e atualizar o equipamento. Esta solu\u00e7\u00e3o \u00e9 tecnicamente desafiadora e leva muito tempo.<\/li>\r\n<li>Utilizar o VAS Expert Policer, que permite priorizar protocolos e usar corretamente a largura de banda dispon\u00edvel. Dessa forma, \u00e9 poss\u00edvel usar a largura de canal existente sem substituir o equipamento e com um custo menor.<\/li>\r\n<\/ol>\r\nAp\u00f3s a instala\u00e7\u00e3o do DPI e do m\u00f3dulo QoE, nossos engenheiros come\u00e7aram a analisar a rede para encontrar os servi\u00e7os e protocolos mais populares. As prioridades mais altas foram escolhidas para esses e outros servi\u00e7os cr\u00edticos. Isso inclui mensageiros\/Facebook para manter contato com colegas de trabalho e familiares e VPN para trabalho remoto. As prioridades mais baixas foram dadas aos servi\u00e7os com tempo limitado.\r\n\r\n<noscript><img decoding=\"async\" src=\"\/wp-content\/uploads\/2020\/07\/protocols-analysis-1140x562-1.png\" alt=\"An\u00e1lise de protocolos\" 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=\"An\u00e1lise de protocolos\" 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\nA an\u00e1lise levou ao seguinte quadro:\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\nDevemos mencionar o protocolo Netflix, que n\u00e3o se tornou uma prioridade. O problema \u00e9 que a Netflix utiliza protocolos nativos para determinadas plataformas de streaming (Windows, iOS, Android, etc.). O suporte a esses protocolos est\u00e1 em desenvolvimento.\r\n\r\nPortanto, uma solu\u00e7\u00e3o baseada em DPI oferece a possibilidade de prioriza\u00e7\u00e3o com o uso posterior de policiamento dependendo das assinaturas de protocolo e da dire\u00e7\u00e3o do tr\u00e1fego.\r\n\r\n<h2>O que significa prioriza\u00e7\u00e3o por dire\u00e7\u00e3o de tr\u00e1fego?<\/h2>\r\nA plataforma DPI pode determinar um intervalo de AS para os quais o tr\u00e1fego \u00e9 considerado de maior prioridade.\r\n\r\nVoltando \u00e0 Netflix, a experi\u00eancia mostra que este servi\u00e7o possui seu pr\u00f3prio AS (ASN 2906). Agora, precisamos apenas definir a prioridade atribu\u00edda ao tr\u00e1fego para este AS.\r\n\r\nComo o Stingray Service Gateway j\u00e1 possui uma lista atualizada automaticamente de sistemas aut\u00f4nomos globais, basta indicar o n\u00famero deste AS e sua prioridade. O DPI tamb\u00e9m permite combinar sub-redes de operadoras em ASs locais.\r\n\r\nFinalmente, a prioriza\u00e7\u00e3o por dire\u00e7\u00e3o \u00e9 a seguinte:\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\nPara finalizar a configura\u00e7\u00e3o, precisamos definir regras de policiamento para cada classe:\r\n\r\nO limite \u00e9 de 240 Mbps para o tr\u00e1fego total de sa\u00edda.\r\nPara as classes:\r\n\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\nPara o tr\u00e1fego total de entrada, o limite tamb\u00e9m \u00e9 de 240 Mbps.\r\nE o mesmo vale para as 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\n\r\nAp\u00f3s a implementa\u00e7\u00e3o do <a href=\"\/br\/products\/stingray\/\" rel=\"noopener noreferrer\" target=\"_blank\">Stingray SG<\/a> com Qualidade de Servi\u00e7o, a situa\u00e7\u00e3o melhorou: os atrasos e a instabilidade diminu\u00edram. Al\u00e9m disso, o n\u00famero de reclama\u00e7\u00f5es de assinantes diminuiu \u2014 os problemas de carregamento lento e atrasos em jogos online foram eliminados.\r\n\r\n[subscription id=\u201d11987\u2033]Assine nossa newsletter e fique atualizado sobre os \u00faltimos desenvolvimentos e ofertas especiais.[\/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 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ 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