{"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\/fr\/knowledge-center\/what-is-ieee-802-3ba-standard","title":{"rendered":"Comprendre la norme IEEE 802.3ba : explication des technologies 40GbE et 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\">Introduction<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">L\u2019amendement IEEE 802.3ba, ratifi\u00e9 le <strong>17 juin 2010<\/strong>, a introduit deux d\u00e9bits cl\u00e9s \u2014<strong>40 Gbps et 100 Gbps<\/strong>\u2014 au sein d\u2019une norme Ethernet unifi\u00e9e. Il est apparu en r\u00e9ponse \u00e0 la croissance rapide des besoins d\u2019agr\u00e9gation dans les centres de donn\u00e9es et de r\u00e9seau c\u0153ur, qui d\u00e9passaient la capacit\u00e9 des r\u00e9seaux 10 GbE.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Architecture standard et principes de conception<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>Architecture unifi\u00e9e<\/strong>: conserve les fonctionnalit\u00e9s fondamentales de l\u2019Ethernet \u2014 m\u00eame format de trame, fonctionnement full-duplex, utilisant la couche MAC existante pour assurer la compatibilit\u00e9 ascendante.<\/p><\/li>\n\n\n\n<li><p><strong>Couches physiques (PHY)<\/strong>: d\u00e9finit une gamme d\u2019options selon les types de supports \u2014<a href=\"https:\/\/resourceslp.szlogic.cn\/fr\/knowledge-center\/smf-optical-transceiver-vs-mmf-optical-transceiver-guide\/\" target=\"_blank\" rel=\"\">fibre monomode, fibre multimode<\/a>, c\u00e2ble cuivre twinax et liaisons sur plan de bord.<\/p><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Supports PHY et port\u00e9es prises en charge<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Les principaux types PHY pris en charge et leurs port\u00e9es incluent :<\/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>Type de support<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>PHY 40 GbE (exemples)<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>PHY 100 GbE (exemples)<\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"213\"><p>Plan arri\u00e8re<\/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>C\u00e2ble cuivre 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>Fibre multimode (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>Fibre multimode (OM4)<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>(Jusqu\u2019\u00e0 \u2265 150 m)<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>(Jusqu\u2019\u00e0 \u2265 150 m)<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"213\"><p>Fibre monomode<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p><a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/products\/482487.htm\">Une des principales avantages du QSFP+ est sa capacit\u00e9 \u00e0 d\u00e9bordner en plusieurs liens de faible vitesse :<\/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\">Ces options PHY garantissent un d\u00e9ploiement souple dans les centres de donn\u00e9es, les r\u00e9seaux d\u2019entreprise et les r\u00e9seaux c\u0153ur des fournisseurs de services.<\/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\">R\u00e9partition des voies de donn\u00e9es et codage<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">La norme utilise une structure multi-voie :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>40 GbE<\/strong>: utilise 4 voies parall\u00e8les.<\/p><\/li>\n\n\n\n<li><p><strong>100 GbE<\/strong>: emploie jusqu\u2019\u00e0 10 voies.<br>Le codage utilise <strong>64b\/66b<\/strong> un codage en ligne (BASE-R), la sous-couche PCS r\u00e9partissant les donn\u00e9es sur les voies avec alignement pour la correction de d\u00e9synchronisation.<\/p><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Pourquoi cela compte : impact et cas d\u2019usage<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>Bande passante \u00e9volutif<\/strong>: offre des gains majeurs par rapport au 10 GbE, id\u00e9al pour les applications gourmandes en donn\u00e9es et l\u2019infrastructure cloud.<\/p><\/li>\n\n\n\n<li><p><strong>Compatibilit\u00e9 industrielle<\/strong>: s\u2019aligne sur les \u00e9cosyst\u00e8mes Ethernet existants, permettant des mises \u00e0 niveau fluides.<\/p><\/li>\n\n\n\n<li><p><strong>D\u00e9ploiement modulaire<\/strong>: prend en charge plusieurs supports et connecteurs, facilitant les environnements vari\u00e9s et les conceptions mat\u00e9rielles.<\/p><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Modules optiques 40 G QSFP+ de 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\">LINK-PP fournit <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/store-26153-40g-qsfp.htm\">Modules optiques 40 G QSFP+<\/a> con\u00e7us pour respecter les sp\u00e9cifications IEEE 802.3ba. Bien que la page produit ne d\u00e9taille pas les caract\u00e9ristiques techniques exactes, les modules QSFP+ prennent nativement en charge des normes telles que 40GBASE-SR4, 40GBASE-LR4 et 40GBASE-ER4 \u2014 des PHY courants d\u00e9finis par IEEE 802.3ba. Ces modules s\u2019int\u00e8grent donc parfaitement dans les d\u00e9ploiements de centre de donn\u00e9es et de r\u00e9seaux haute densit\u00e9 exploitant le 40 GbE \u2014 une solution id\u00e9ale pour les environnements exigeant fiabilit\u00e9, compatibilit\u00e9 et performances.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Conclusion<\/h2>\n\n\n\n<p class=\"has-text-align-left wp-block-paragraph\">The <strong>IEEE 802.3ba standard<\/strong>, introduit en <strong>2010<\/strong>, a marqu\u00e9 un tournant d\u00e9cisif vers <strong>le 40 GbE et le 100 GbE<\/strong>, offrant un Ethernet haut d\u00e9bit et flexible sur plusieurs types de supports. <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/store-26153-40g-qsfp.htm?ca=1455&amp;cv=8050\">Les modules QSFP+ 40G de LINK-PP<\/a> fournissent un mat\u00e9riel pratique conforme aux normes, align\u00e9 sur cette \u00e9volution \u2014 id\u00e9al pour des infrastructures r\u00e9seau tourn\u00e9es vers l\u2019avenir.<\/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\/fr\/wp-json\/wp\/v2\/posts\/5115","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/resourceslp.szlogic.cn\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/resourceslp.szlogic.cn\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/fr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/fr\/wp-json\/wp\/v2\/comments?post=5115"}],"version-history":[{"count":4,"href":"https:\/\/resourceslp.szlogic.cn\/fr\/wp-json\/wp\/v2\/posts\/5115\/revisions"}],"predecessor-version":[{"id":11376,"href":"https:\/\/resourceslp.szlogic.cn\/fr\/wp-json\/wp\/v2\/posts\/5115\/revisions\/11376"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/fr\/wp-json\/wp\/v2\/media\/5114"}],"wp:attachment":[{"href":"https:\/\/resourceslp.szlogic.cn\/fr\/wp-json\/wp\/v2\/media?parent=5115"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/fr\/wp-json\/wp\/v2\/categories?post=5115"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/fr\/wp-json\/wp\/v2\/tags?post=5115"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}