{"id":9214,"date":"2023-05-24T11:22:30","date_gmt":"2023-05-24T08:22:30","guid":{"rendered":"https:\/\/vasexperts.com\/?p=9214"},"modified":"2025-08-13T15:16:03","modified_gmt":"2025-08-13T12:16:03","slug":"vrf-lite-and-l3vpn-in-stingray-sg","status":"publish","type":"post","link":"https:\/\/vasexperts.com\/br\/blog\/bng\/vrf-lite-and-l3vpn-in-stingray-sg\/","title":{"rendered":"VRF Lite e L3VPN no Stingray SG"},"content":{"rendered":"Ao implementar uma VPN de provedor, o provedor oferece ao cliente v\u00e1rios pontos de acesso e cria canais entre eles em sua rede, pelos quais ele paga.\r\n\r\nQual \u00e9 a peculiaridade de uma VPN de provedor em compara\u00e7\u00e3o com uma VPN de cliente? O fato de que o provedor assume a obriga\u00e7\u00e3o de fornecer uma determinada qualidade de servi\u00e7os (n\u00edvel aceit\u00e1vel de lat\u00eancia, jitter, porcentagem de perda de pacotes, per\u00edodo m\u00e1ximo de indisponibilidade dos servi\u00e7os etc.) e garantias de seguran\u00e7a.\r\n<h2>L2VPN ou L3VPN?<\/h2>\r\n    <strong>   O uso de L2 e L3VPN tem suas pr\u00f3prias especificidades:    <\/strong>   A L2VPN \u00e9 usada com mais frequ\u00eancia se houver uma tarefa para garantir a conectividade entre hosts no mesmo dom\u00ednio de transmiss\u00e3o com redund\u00e2ncia, e a L3VPN \u00e9 para fornecer servi\u00e7os diferentes (L3VPN + Internet, VRF-Aware NAT etc.).). A L3VPN est\u00e1 ganhando cada vez mais popularidade, e    <strong>   na 13\u00aa vers\u00e3o do Stingray SG, foi adicionado o suporte a VRF Lite,    <\/strong>   que permite implementar uma das op\u00e7\u00f5es de L3VPN.\r\n<h2>Princ\u00edpios do VRF<\/h2>\r\n    <strong>   O mesmo princ\u00edpio de roteadores virtuais \u00e9 chamado de forma diferente por diferentes fornecedores:    <\/strong>   VRF na Cisco, VPN-instance na Huawei e Routing Instance na Juniper. Todas elas s\u00e3o m\u00e1quinas virtuais que s\u00e3o essencialmente criadas no mesmo roteador f\u00edsico e s\u00e3o VPNs separadas, com tabelas de roteamento, FIB e listas de interface individuais.\r\n\r\nCada VRF \u00e9 isolada das outras VRFs e do pr\u00f3prio roteador f\u00edsico. Uma VRF \u00e9 local em um roteador, n\u00e3o existe fora dele e n\u00e3o est\u00e1 conectada a uma VRF em outro roteador. Entretanto, assim como ocorre com os servidores virtuais, \u00e9 poss\u00edvel a comunica\u00e7\u00e3o entre eles.\r\n<h2>VRF Lite<\/h2>\r\nNo primeiro est\u00e1gio, o VRF lite foi implementado no Stingray SG. O prefixo lite significa que o Stingray SG apenas separa as tabelas de roteamento, mas n\u00e3o coloca o tr\u00e1fego de um VRF separado em um t\u00fanel exclusivo (MPLS, VXLAN). O VRF lite permite isolar os servi\u00e7os fornecidos entre si e otimizar o roteamento ao usar canais diferentes.\r\n\r\n<noscript><img decoding=\"async\" src=\"\/wp-content\/uploads\/2023\/05\/vrf-lite.png\" alt=\"VRF lite\" width=\"100%\" height=\"auto\" class=\"alignnone size-full wp-image-9217\" srcset=\"\/wp-content\/uploads\/2023\/05\/vrf-lite.png 1769w, \/wp-content\/uploads\/2023\/05\/vrf-lite-300x221.png 300w, \/wp-content\/uploads\/2023\/05\/vrf-lite-1024x756.png 1024w, \/wp-content\/uploads\/2023\/05\/vrf-lite-768x567.png 768w, \/wp-content\/uploads\/2023\/05\/vrf-lite-1536x1134.png 1536w\" sizes=\"(max-width: 1769px) 100vw, 1769px\"><\/noscript><img decoding=\"async\" src=\"\/wp-content\/uploads\/2023\/05\/vrf-lite.png\" alt=\"VRF lite\" width=\"100%\" height=\"auto\" class=\"alignnone size-full wp-image-9217 lazyload\" sizes=\"(max-width: 1769px) 100vw, 1769px\" data-src=\"\/wp-content\/uploads\/2023\/05\/vrf-lite.png\" data-srcset=\"\/wp-content\/uploads\/2023\/05\/vrf-lite.png 1769w, \/wp-content\/uploads\/2023\/05\/vrf-lite-300x221.png 300w, \/wp-content\/uploads\/2023\/05\/vrf-lite-1024x756.png 1024w, \/wp-content\/uploads\/2023\/05\/vrf-lite-768x567.png 768w, \/wp-content\/uploads\/2023\/05\/vrf-lite-1536x1134.png 1536w\">\r\n\r\nO isolamento de servi\u00e7os usando VRF envolve a coloca\u00e7\u00e3o de regras de roteamento de diferentes tipos de assinantes ou dispositivos em tabelas diferentes para definir uma rota espec\u00edfica. Um exemplo \u00e9 a aloca\u00e7\u00e3o de tr\u00e1fego de um decodificador de IPTV, que tamb\u00e9m est\u00e1 localizado no dom\u00ednio L2 com <a href=\"\/products\/bras-bng\/\" rel=\"noopener noreferrer\">BRAS<\/a>, bem como CPE. O decodificador de IPTV obt\u00e9m acesso apenas aos recursos locais, enquanto o CPE obt\u00e9m acesso \u00e0 Internet.\r\n\r\n<noscript><img decoding=\"async\" src=\"\/wp-content\/uploads\/2023\/05\/fib-rib.png\" alt=\"FIB RIB\" width=\"100%\" height=\"auto\" class=\"alignnone size-full wp-image-9218\" srcset=\"\/wp-content\/uploads\/2023\/05\/fib-rib.png 863w, \/wp-content\/uploads\/2023\/05\/fib-rib-300x222.png 300w, \/wp-content\/uploads\/2023\/05\/fib-rib-768x569.png 768w\" sizes=\"(max-width: 863px) 100vw, 863px\"><\/noscript><img decoding=\"async\" src=\"\/wp-content\/uploads\/2023\/05\/fib-rib.png\" alt=\"FIB RIB\" width=\"100%\" height=\"auto\" class=\"alignnone size-full wp-image-9218 lazyload\" sizes=\"(max-width: 863px) 100vw, 863px\" data-src=\"\/wp-content\/uploads\/2023\/05\/fib-rib.png\" data-srcset=\"\/wp-content\/uploads\/2023\/05\/fib-rib.png 863w, \/wp-content\/uploads\/2023\/05\/fib-rib-300x222.png 300w, \/wp-content\/uploads\/2023\/05\/fib-rib-768x569.png 768w\">\r\n\r\nA implementa\u00e7\u00e3o do VRF no Stingray SG \u00e9 realizada usando um Soft-Router, que constr\u00f3i uma tabela RIB e interage com o processo principal do Stingray SG (fastDPI). Essa separa\u00e7\u00e3o permite alto desempenho com um pequeno aumento no uso da RAM do servidor no caso em que uma Full View \u00e9 recebida em cada VRF.\r\n\r\nA implementa\u00e7\u00e3o do L3VPN usando o VRF lite \u00e9 poss\u00edvel de duas maneiras.\r\n<ul>\r\n \t<li>A primeira op\u00e7\u00e3o \u00e9    <strong>   para colocar o tr\u00e1fego de um determinado VRF em um t\u00fanel GRE.    <\/strong>   Esse m\u00e9todo \u00e9 usado para criar L3VPN por meio da Internet. Essa funcionalidade j\u00e1 est\u00e1 dispon\u00edvel no Stingray SG.<\/li>\r\n \t<li>A segunda op\u00e7\u00e3o pressup\u00f5e que os pontos a serem conectados estejam localizados dentro da rede da operadora. Nesse caso, recomendamos    <strong>   utiliza\u00e7\u00e3o de MPLS ou VXLAN.    <\/strong>   Essa abordagem pode ser implementada conectando o Stingray SG a um roteador habilitado para MPLS, que adicionar\u00e1 tags para determinados VRFs. O suporte para MPLS completo no Stingray SG est\u00e1 nos planos de desenvolvimento.<\/li>\r\n<\/ul>\r\n [product id=\u201d 19\u2033 type=\u201ddark\u201d]","protected":false},"excerpt":{"rendered":"<p>L3VPN e L2VPN s\u00e3o servi\u00e7os populares entre as operadoras de telecomunica\u00e7\u00f5es e s\u00e3o um fator decisivo na escolha de um provedor de Internet para pessoas jur\u00eddicas.<\/p>\n","protected":false},"author":7,"featured_media":9220,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[49],"tags":[],"class_list":["post-9214","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-bng"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>(English) VASExperts<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, 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