{"id":110925,"date":"2023-10-18T21:10:24","date_gmt":"2023-10-18T19:10:25","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/google-otkryl-tehnologiyu-peredachi-dannyh-falcon"},"modified":"2023-10-18T21:10:24","modified_gmt":"2023-10-18T19:10:25","slug":"google-otkryl-tehnologiyu-peredachi-dannyh-falcon","status":"publish","type":"post","link":"https:\/\/prohoster.info\/pt\/blog\/news\/google-otkryl-tehnologiyu-peredachi-dannyh-falcon","title":{"rendered":"O Google lan\u00e7ou a tecnologia de transmiss\u00e3o de dados Falcon","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>A empresa Google anunciou a abertura da tecnologia de transmiss\u00e3o de dados Falcon (hardware transport, n\u00edvel de transporte acelerado por hardware) e a transfer\u00eancia de seu desenvolvimento para o projeto Open Compute, focado na co-desenvolvimento de especifica\u00e7\u00f5es abertas de hardware para equipar data centers. O Falcon \u00e9 apresentado como Ethernet de pr\u00f3xima gera\u00e7\u00e3o, capaz de aumentar a largura de banda e a efici\u00eancia da transmiss\u00e3o de dados em redes existentes baseadas em Ethernet e TCP\/IP, cr\u00edticas para largura de banda e lat\u00eancia, como redes para sistemas de computa\u00e7\u00e3o de alto desempenho e intelig\u00eancia artificial.    <\/p>\n<p>O protocolo \u00e9 escal\u00e1vel para redes de data center e foi projetado para garantir desempenho extremamente alto de forma previs\u00edvel, com baixa lat\u00eancia, flexibilidade e escalabilidade. O suporte inicial ao Falcon ser\u00e1 fornecido nos aceleradores de rede da s\u00e9rie Intel IPU E2000 (Infrastructure Processing Unit), que combinam um adaptador Ethernet com um processador program\u00e1vel, onde opera\u00e7\u00f5es que normalmente seriam realizadas no lado da pilha de rede ou no sistema, como gerenciamento de tr\u00e1fego, controle de congestionamento e an\u00e1lise de protocolos de alto n\u00edvel, podem ser deslocadas.     <\/p>\n<p>Para alcan\u00e7ar baixa lat\u00eancia em redes Ethernet de alta velocidade que permitem perdas de pacotes, o Falcon utiliza tr\u00eas princ\u00edpios: medi\u00e7\u00e3o detalhada da lat\u00eancia entre o envio do pedido e o recebimento da resposta (RTT, round-trip time), corte de tr\u00e1fego implementado em hardware vinculado a fluxos individuais e retransmiss\u00e3o r\u00e1pida e precisa dos pacotes. Essas propriedades s\u00e3o complementadas por meios de acesso simult\u00e2neo em v\u00e1rios canais (Multipath) e suporte \u00e0 criptografia de conex\u00f5es.      <\/p>\n<p>Na implementa\u00e7\u00e3o do Falcon s\u00e3o utilizadas as seguintes tecnologias:  <\/p>\n<ul>\n<li class=\"l\"> Carousel \u2014 um mecanismo de limita\u00e7\u00e3o de tr\u00e1fego (Traffic Shaping), que permite regular a largura de banda e a intensidade do fluxo de pacotes para hosts individuais.\n<li class=\"l\"> Snap \u2014 uma subsistema de rede baseada em microkernel, expand\u00edvel atrav\u00e9s de m\u00f3dulos, que permite adicionar funcionalidades avan\u00e7adas, como virtualiza\u00e7\u00e3o de rede, limita\u00e7\u00e3o de tr\u00e1fego e entrega de mensagens.\n<li class=\"l\"> Swift \u2014 um mecanismo de controle de congestionamento (Congestion Control) para redes de data centers, que possibilita lat\u00eancias abaixo de 50 microsegundos para mensagens RPC curtas, mantendo uma largura de banda de 100Gbps. <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/pt\/server\/\"   title=\"servidor\" data-wpil-keyword-link=\"linked\">servidor<\/a> cargas pr\u00f3ximas de 100%.\n<li class=\"l\"> RACK-TLP \u2014 um algoritmo de detec\u00e7\u00e3o de perda de pacotes para TCP.\n<li class=\"l\"> PLB \u2014 um mecanismo de balanceamento de carga que utiliza sinais de sobrecarga. Ap\u00f3s a implementa\u00e7\u00e3o do PLB nas redes do Google, o desequil\u00edbrio de carga em switches foi reduzido em 60%, as perdas de pacotes diminu\u00edram em 33%, e as lat\u00eancias na entrega de mensagens RPC curtas ca\u00edram em 25%.\n<li class=\"l\"> CSIG (Congestion Signaling) \u2014 um protocolo de troca de telemetria, usado para enviar sinais de sobrecarga e na gest\u00e3o do tr\u00e1fego.\n<li class=\"l\"> PSP (PSP Security Protocol) \u2014 um protocolo de criptografia de tr\u00e1fego.  <\/ul>\n<p>Falcon utiliza como protocolos de camada superior RDMA e NVM Express, mas tamb\u00e9m permite adicionar suporte a protocolos de camada superior adicionais na forma de extens\u00f5es. A funcionalidade do Falcon \u00e9 definida por tr\u00eas camadas: camada para mapeamento com protocolos de camada superior (ULP Mapping), camada de transa\u00e7\u00f5es e camada de entrega de pacotes. Na primeira camada, s\u00e3o realizadas a gest\u00e3o de fluxo, o processamento de mensagens e o mapeamento com camadas superiores. Na segunda camada, s\u00e3o executados o agendamento, a gest\u00e3o de recursos e a ordena\u00e7\u00e3o. Na terceira camada, s\u00e3o realizadas a gest\u00e3o de congestionamento, limita\u00e7\u00e3o de tr\u00e1fego, manuten\u00e7\u00e3o de confiabilidade e o uso simult\u00e2neo de diferentes canais (Multipathing).                <center><img decoding=\"async\" alt=\"O Google lan\u00e7ou a tecnologia de transmiss\u00e3o de dados Falcon \" src=\"\/wp-content\/uploads\/2023\/10\/b8f7aa69bca7bd2d5b2b47ff424d330d.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/center><br \/>\n<br \/>Fonte: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=59949\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041a\u043e\u043c\u043f\u0430\u043d\u0438\u044f Google \u043e\u0431\u044a\u044f\u0432\u0438\u043b\u0430 \u043e\u0431 \u043e\u0442\u043a\u0440\u044b\u0442\u0438\u0438 \u0442\u0435\u0445\u043d\u043e\u043b\u043e\u0433\u0438\u0438 \u043f\u0435\u0440\u0435\u0434\u0430\u0447\u0438 \u0434\u0430\u043d\u043d\u044b\u0445 Falcon (hardware transport, \u0430\u043f\u043f\u0430\u0440\u0430\u0442\u043d\u043e \u0443\u0441\u043a\u043e\u0440\u0435\u043d\u043d\u044b\u0439 \u0442\u0440\u0430\u043d\u0441\u043f\u043e\u0440\u0442\u043d\u044b\u0439 \u0443\u0440\u043e\u0432\u0435\u043d\u044c) \u0438 \u043f\u0435\u0440\u0435\u0432\u043e\u0434\u0430 \u0435\u0451 \u0434\u0430\u043b\u044c\u043d\u0435\u0439\u0448\u0435\u0439 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0438 \u0432 \u043f\u0440\u043e\u0435\u043a\u0442 Open Compute, \u043d\u0430\u0446\u0435\u043b\u0435\u043d\u043d\u044b\u0439 \u043d\u0430 \u0441\u043e\u0432\u043c\u0435\u0441\u0442\u043d\u043e\u0435 \u0440\u0430\u0437\u0432\u0438\u0442\u0438\u0435 \u043e\u0442\u043a\u0440\u044b\u0442\u044b\u0445 \u0441\u043f\u0435\u0446\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u0439 \u043e\u0431\u043e\u0440\u0443\u0434\u043e\u0432\u0430\u043d\u0438\u044f \u0434\u043b\u044f \u043e\u0441\u043d\u0430\u0449\u0435\u043d\u0438\u044f \u0434\u0430\u0442\u0430\u0446\u0435\u043d\u0442\u0440\u043e\u0432. Falcon \u043f\u0440\u0435\u043f\u043e\u0434\u043d\u043e\u0441\u0438\u0442\u0441\u044f \u043a\u0430\u043a Ethernet \u0441\u043b\u0435\u0434\u0443\u044e\u0449\u0435\u0433\u043e \u043f\u043e\u043a\u043e\u043b\u0435\u043d\u0438\u044f, \u0441\u043f\u043e\u0441\u043e\u0431\u043d\u044b\u0439 \u043f\u043e\u0432\u044b\u0441\u0438\u0442\u044c \u043f\u0440\u043e\u043f\u0443\u0441\u043a\u043d\u0443\u044e \u0441\u043f\u043e\u0441\u043e\u0431\u043d\u043e\u0441\u0442\u044c \u0438 \u0443\u0432\u0435\u043b\u0438\u0447\u0438\u0442\u044c \u044d\u0444\u0444\u0435\u043a\u0442\u0438\u0432\u043d\u043e\u0441\u0442\u044c \u043f\u0435\u0440\u0435\u0434\u0430\u0447\u0438 \u0434\u0430\u043d\u043d\u044b\u0445 \u0432 \u0441\u0443\u0449\u0435\u0441\u0442\u0432\u0443\u044e\u0449\u0438\u0445 \u0441\u0442\u0430\u043d\u0434\u0430\u0440\u0442\u043d\u044b\u0445 \u0441\u0435\u0442\u044f\u0445 \u043d\u0430 \u0431\u0430\u0437\u0435 [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":110926,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-110925","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041a\u043e\u043c\u043f\u0430\u043d\u0438\u044f Google \u043e\u0431\u044a\u044f\u0432\u0438\u043b\u0430 \u043e\u0431 \u043e\u0442\u043a\u0440\u044b\u0442\u0438\u0438 \u0442\u0435\u0445\u043d\u043e\u043b\u043e\u0433\u0438\u0438 \u043f\u0435\u0440\u0435\u0434\u0430\u0447\u0438 \u0434\u0430\u043d\u043d\u044b\u0445 Falcon (hardware transport, \u0430\u043f\u043f\u0430\u0440\u0430\u0442\u043d\u043e \u0443\u0441\u043a\u043e\u0440\u0435\u043d\u043d\u044b\u0439 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