{"id":5115,"date":"2025-09-11T00:00:00","date_gmt":"2025-09-11T00:00:00","guid":{"rendered":"https:\/\/lp.szlogic.cn\/knowledge-center\/what-is-ieee-802-3ba-standard\/"},"modified":"2026-06-22T09:06:00","modified_gmt":"2026-06-22T09:06:00","slug":"what-is-ieee-802-3ba-standard","status":"publish","type":"post","link":"https:\/\/resourceslp.szlogic.cn\/pt\/knowledge-center\/what-is-ieee-802-3ba-standard","title":{"rendered":"Compreendendo o padr\u00e3o IEEE 802.3ba: explica\u00e7\u00e3o de 40GbE e 100GbE"},"content":{"rendered":"<figure class=\"wp-block-image aligncenter size-large\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1200\" height=\"712\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/c07817e45dec4d99923b86dbda116251.webp\" alt=\" IEEE 802.3ba Standard\" class=\"wp-image-5112\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/c07817e45dec4d99923b86dbda116251.webp 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/c07817e45dec4d99923b86dbda116251-300x178.webp 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/c07817e45dec4d99923b86dbda116251-1024x608.webp 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/c07817e45dec4d99923b86dbda116251-768x456.webp 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/c07817e45dec4d99923b86dbda116251-18x12.webp 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Introdu\u00e7\u00e3o<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">A emenda IEEE 802.3ba, ratificada em <strong>17 de junho de 2010<\/strong>, introduziu duas taxas de dados marco\u2014<strong>40 Gbps e 100 Gbps<\/strong>\u2014dentro de um \u00fanico padr\u00e3o Ethernet. Surgiu em resposta ao r\u00e1pido crescimento das necessidades de agrega\u00e7\u00e3o em data centers e redes de backplane que excediam a capacidade das redes 10GbE.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Arquitetura padr\u00e3o e princ\u00edpios de projeto<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>Arquitetura unificada<\/strong>: mant\u00e9m os recursos principais do Ethernet\u2014mesmo formato de quadro, opera\u00e7\u00e3o full-duplex, utilizando a camada MAC existente para compatibilidade retroativa.<\/p><\/li>\n\n\n\n<li><p><strong>Camadas f\u00edsicas (PHY)<\/strong>: define uma gama de op\u00e7\u00f5es entre tipos de m\u00eddia\u2014<a href=\"https:\/\/resourceslp.szlogic.cn\/pt\/knowledge-center\/smf-optical-transceiver-vs-mmf-optical-transceiver-guide\/\" target=\"_blank\" rel=\"\">fibra monomodo, fibra multimodo<\/a>, cabo de cobre twinax e links de backplane.<\/p><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">M\u00eddias PHY e capacidades de alcance<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Os principais tipos PHY suportados e seus respectivos alcances incluem:<\/p>\n\n\n\n<figure class=\"wp-block-table\">\n<table class=\"has-fixed-layout\">\n<colgroup><col style=\"width: 213px;\"\/><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><\/colgroup><tbody><tr><th colspan=\"1\" rowspan=\"1\" colwidth=\"213\"><p>Tipo de m\u00eddia<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>PHY 40GbE (exemplos)<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>PHY 100GbE (exemplos)<\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"213\"><p>Placa-m\u00e3e<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>40GBASE-KR4 (\u2265 1 m)<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\u2014<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"213\"><p>Cabo de cobre twinax<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>40GBASE-CR4 (\u2264 7 m)<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>100GBASE-CR10 (\u2264 7 m)<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"213\"><p>Fibra multimodo (OM3)<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>40GBASE-SR4 (\u2265 100 m)<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>100GBASE-SR10 (\u2265 100 m)<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"213\"><p>Fibra multimodo (OM4)<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>(At\u00e9 \u2265 150 m)<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>(At\u00e9 \u2265 150 m)<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"213\"><p>Fibra monomodo<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p><a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/products\/482487.htm\">40GBASE-LR4<\/a> (\u2265 10 km)<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p><a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/products\/488452.htm\">100GBASE-LR4<\/a> (\u2265 10 km); <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/products\/482592.htm\">100GBASE-ER4<\/a> (\u2265 40 km) <\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Essas op\u00e7\u00f5es PHY garantem implanta\u00e7\u00e3o vers\u00e1til em data centers, redes corporativas e backbones de provedores de servi\u00e7os.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img decoding=\"async\" width=\"1200\" height=\"721\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/3426d25714404c1993f09e9f21abe054.webp\" alt=\"IEEE 802.3ba Standard for 40GbE &amp; 100GbE\" class=\"wp-image-3341\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/3426d25714404c1993f09e9f21abe054.webp 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/3426d25714404c1993f09e9f21abe054-300x180.webp 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/3426d25714404c1993f09e9f21abe054-1024x615.webp 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/3426d25714404c1993f09e9f21abe054-768x461.webp 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/3426d25714404c1993f09e9f21abe054-18x12.webp 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Distribui\u00e7\u00e3o de canais de dados e codifica\u00e7\u00e3o<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">O padr\u00e3o utiliza uma estrutura multicanal:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>40GbE<\/strong>: usa 4 canais paralelos.<\/p><\/li>\n\n\n\n<li><p><strong>100GbE<\/strong>: emprega at\u00e9 10 canais.<br>A codifica\u00e7\u00e3o utiliza <strong>codifica\u00e7\u00e3o de linha 64b\/66b<\/strong> (BASE-R), com a subcamada PCS distribuindo os dados pelos canais com alinhamento para corre\u00e7\u00e3o de desvio temporal.<\/p><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Por que isso importa: impacto e casos de uso<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>Largura de banda escal\u00e1vel<\/strong>: oferece aumentos significativos em rela\u00e7\u00e3o ao 10GbE, ideal para aplica\u00e7\u00f5es intensivas em dados e infraestrutura em nuvem.<\/p><\/li>\n\n\n\n<li><p><strong>Compatibilidade industrial<\/strong>: alinha-se aos ecossistemas Ethernet existentes, permitindo atualiza\u00e7\u00f5es cont\u00ednuas.<\/p><\/li>\n\n\n\n<li><p><strong>Implanta\u00e7\u00e3o modular<\/strong>: suporta m\u00faltiplas m\u00eddias e conectores, facilitando ambientes diversos e projetos de hardware.<\/p><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">M\u00f3dulos 40G QSFP+ da LINK-PP<\/h2>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img decoding=\"async\" width=\"1024\" height=\"608\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/106002b8f3c14eed8fe77adaaeb1e16d-1024x608.webp\" alt=\"LINK-PP\u2019s 40G QSFP+ Modules\" class=\"wp-image-5113\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/106002b8f3c14eed8fe77adaaeb1e16d-1024x608.webp 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/106002b8f3c14eed8fe77adaaeb1e16d-300x178.webp 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/106002b8f3c14eed8fe77adaaeb1e16d-768x456.webp 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/106002b8f3c14eed8fe77adaaeb1e16d-18x12.webp 18w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/106002b8f3c14eed8fe77adaaeb1e16d.webp 1200w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">A LINK-PP fornece <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/store-26153-40g-qsfp.htm\">M\u00f3dulos \u00f3pticos 40G QSFP+<\/a> projetados para atender \u00e0s especifica\u00e7\u00f5es IEEE 802.3ba. Embora a p\u00e1gina do produto n\u00e3o detalhe m\u00e9tricas t\u00e9cnicas exatas, os m\u00f3dulos QSFP+ suportam inerentemente padr\u00f5es como 40GBASE-SR4, 40GBASE-LR4 e 40GBASE-ER4\u2014PHYs comuns definidos pela IEEE 802.3ba. Assim, esses m\u00f3dulos se integram perfeitamente em implanta\u00e7\u00f5es de data centers e redes de alta densidade que utilizam 40GbE \u2013 uma combina\u00e7\u00e3o ideal para ambientes que exigem confiabilidade, compatibilidade e desempenho.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Conclus\u00e3o<\/h2>\n\n\n\n<p class=\"has-text-align-left wp-block-paragraph\">The <strong>IEEE 802.3ba standard<\/strong>, introduzida em <strong>2010<\/strong>, marcou uma mudan\u00e7a decisiva para <strong>40GbE e 100GbE<\/strong>, oferecendo Ethernet flex\u00edvel e de alta largura de banda sobre m\u00faltiplos tipos de m\u00eddia. <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/store-26153-40g-qsfp.htm?ca=1455&amp;cv=8050\">Os m\u00f3dulos QSFP+ de 40 Gb\/s da LINK-PP<\/a> fornecem hardware pr\u00e1tico e compat\u00edvel com os padr\u00f5es, alinhado com essa evolu\u00e7\u00e3o\u2014ideal para infraestruturas de rede voltadas para o futuro.<\/p>","protected":false},"excerpt":{"rendered":"<p>Explore the IEEE 802.3ba standard\u2014defining both 40GbE &#038; 100GbE\u2014its technical design and applications, plus how LINK-PP\u2019s 40G QSFP+ modules align perfectly with this high-speed Ethernet evolution.<\/p>","protected":false},"author":1,"featured_media":5114,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[26],"class_list":["post-5115","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-knowledge-center","tag-optics-transceivers"],"blocksy_meta":[],"acf":[],"_links":{"self":[{"href":"https:\/\/resourceslp.szlogic.cn\/pt\/wp-json\/wp\/v2\/posts\/5115","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/resourceslp.szlogic.cn\/pt\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/resourceslp.szlogic.cn\/pt\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/pt\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/pt\/wp-json\/wp\/v2\/comments?post=5115"}],"version-history":[{"count":4,"href":"https:\/\/resourceslp.szlogic.cn\/pt\/wp-json\/wp\/v2\/posts\/5115\/revisions"}],"predecessor-version":[{"id":11376,"href":"https:\/\/resourceslp.szlogic.cn\/pt\/wp-json\/wp\/v2\/posts\/5115\/revisions\/11376"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/pt\/wp-json\/wp\/v2\/media\/5114"}],"wp:attachment":[{"href":"https:\/\/resourceslp.szlogic.cn\/pt\/wp-json\/wp\/v2\/media?parent=5115"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/pt\/wp-json\/wp\/v2\/categories?post=5115"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/pt\/wp-json\/wp\/v2\/tags?post=5115"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}