{"id":5430,"date":"2025-08-16T00:00:00","date_gmt":"2025-08-16T00:00:00","guid":{"rendered":"https:\/\/lp.szlogic.cn\/knowledge-center\/ieee-802-3-ethernet-standard-explained\/"},"modified":"2026-06-22T09:08:51","modified_gmt":"2026-06-22T09:08:51","slug":"ieee-802-3-ethernet-standard-explained","status":"publish","type":"post","link":"https:\/\/resourceslp.szlogic.cn\/el\/knowledge-center\/ieee-802-3-ethernet-standard-explained","title":{"rendered":"Est\u00e1ndar IEEE 802.3 Ethernet explicado: funci\u00f3n, aplicaciones y conformidad del producto LINK-PP"},"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\/6d9d849b02c74d56827b46e71f2b405a.webp\" alt=\"IEEE 802.3 compliance,IEEE 802.3af, 802.3at, 802.3bt\" class=\"wp-image-5428\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/6d9d849b02c74d56827b46e71f2b405a.webp 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/6d9d849b02c74d56827b46e71f2b405a-300x178.webp 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/6d9d849b02c74d56827b46e71f2b405a-1024x608.webp 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/6d9d849b02c74d56827b46e71f2b405a-768x456.webp 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/6d9d849b02c74d56827b46e71f2b405a-18x12.webp 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">\ud83c\udf10 Introducci\u00f3n<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u03a4\u03bf \/ \u0397 \/ \u039f <strong>Instituto de Ingenieros El\u00e9ctricos y Electr\u00f3nicos (IEEE)<\/strong> es un l\u00edder mundial en el desarrollo de normas t\u00e9cnicas que moldean la tecnolog\u00eda moderna. Entre sus numerosas contribuciones, <strong>IEEE 802.3<br><\/strong> destaca como la norma definitiva para Ethernet: la columna vertebral de las redes cableadas. Define las capas f\u00edsica y de enlace de datos del modelo OSI, garantizando interoperabilidad, fiabilidad y escalabilidad para dispositivos en todo el mundo.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\ud83c\udf10 \u00bfQu\u00e9 es el IEEE 802.3?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Presentado por primera vez en 1983, el IEEE 802.3 especifica las reglas para la comunicaci\u00f3n Ethernet, abarcando aspectos tales como:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>Especificaciones de la capa f\u00edsica<\/strong> \u2013 tipos de cable, codificaci\u00f3n de se\u00f1ales y velocidades de transmisi\u00f3n<\/p><\/li>\n\n\n\n<li><p><strong>Protocolos de la capa de enlace de datos<\/strong> \u2013 encapsulamiento, direccionamiento y detecci\u00f3n de errores<\/p><\/li>\n\n\n\n<li><p><strong>Control de acceso al medio (<\/strong><a href=\"https:\/\/resourceslp.szlogic.cn\/el\/knowledge-center\/what-are-ethernet-mac-and-phy\/\" target=\"_blank\" rel=\"\"><strong>MAC<\/strong><\/a><strong>)<\/strong> \u2013 mediante Acceso M\u00faltiple por Detecci\u00f3n de Portadora con Detecci\u00f3n de Colisiones (CSMA\/CD)<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Con el tiempo, el IEEE 802.3 ha evolucionado para incluir tasas de transferencia m\u00e1s altas (<strong>de 10 Mbps a 400 Gbps<\/strong>, con trabajos en curso para 800 Gbps), soporte para fibra \u00f3ptica y <strong>Alimentaci\u00f3n a trav\u00e9s de Ethernet (PoE)<\/strong> capacidades.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\ud83c\udf10 \u00bfPor qu\u00e9 es importante el IEEE 802.3?<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>Compatibilidad universal<\/strong> \u2013 Garantiza que el hardware de red de distintos fabricantes funcione conjuntamente.<\/p><\/li>\n\n\n\n<li><p><strong>Escalabilidad de velocidad<\/strong> \u2013 Cubre un amplio rango de tasas de transferencia, desde <strong>10 Mbps (10BASE-T)<\/strong> \u03ba\u03b1\u03b9 <strong>100 Mbps (Ethernet r\u00e1pido)<\/strong> hasta <strong>hasta 1 Gbps, 10 Gbps<\/strong>, y hasta <strong>400 Gbps<\/strong>.<\/p><\/li>\n\n\n\n<li><p><strong>Innovaci\u00f3n tecnol\u00f3gica<\/strong> \u2013 Incluye avances en cableado, <a href=\"https:\/\/resourceslp.szlogic.cn\/el\/glossary\/what-you-need-to-know-about-power-over-ethernet\/\" target=\"_blank\" rel=\"\">PoE<\/a> entrega de energ\u00eda y eficiencia energ\u00e9tica (IEEE 802.3az).<\/p><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\ud83c\udf10 Estructura t\u00e9cnica del IEEE 802.3<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">MAC y formato de trama<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Las tramas Ethernet est\u00e1ndar tienen una <strong>longitud m\u00ednima de 64 bytes<\/strong> Central Processing Unit (CPU) <strong>y una m\u00e1xima de 1518 bytes sin etiquetas VLAN<\/strong>.<\/p><\/li>\n\n\n\n<li><p>Con la etiquetaci\u00f3n VLAN IEEE 802.1Q, el tama\u00f1o m\u00e1ximo de trama aumenta a <strong>1522 bytes<\/strong>.<\/p><\/li>\n\n\n\n<li><p><em>Tramas gigantes<\/em> (&gt;9000 bytes) son espec\u00edficas del fabricante y no forman parte de la norma central IEEE 802.3.<\/p><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Control de acceso al medio<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Ethernet temprano utilizaba CSMA\/CD para medios compartidos.<\/p><\/li>\n\n\n\n<li><p>Ethernet moderno es principalmente full-duplex, basado en switches y libre de colisiones.<\/p><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Variantes de la capa f\u00edsica<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>Cobre de par trenzado<\/strong>: 10BASE-T, 100BASE-TX, 1000BASE-T, hasta 10GBASE-T<\/p><\/li>\n\n\n\n<li><p><strong>Fibra \u00f3ptica<\/strong>: multimodo y monomodo (p. ej., 10GBASE-SR\/LR, 100GBASE-LR4)<\/p><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Normas PoE<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>3af (PoE)<\/strong> \u2013 Salida PSE hasta <strong>15,4 W<\/strong> (el PD recibe ~12,95 W)<\/p><\/li>\n\n\n\n<li><p><strong>3at (PoE+)<\/strong> \u2013 Salida PSE hasta <strong>30 W<\/strong> (el PD recibe ~25,5 W)<\/p><\/li>\n\n\n\n<li><p><strong>3bt (PoE++)<\/strong><\/p>\n<ul class=\"wp-block-list\">\n<li><p><em>Tipo 3<\/em>: Salida PSE hasta <strong>60 W<\/strong> (el PD recibe ~51 W)<\/p><\/li>\n\n\n\n<li><p><em>Tipo 4<\/em>: Salida PSE hasta <strong>90 W<\/strong> (el PD recibe ~71 W)<\/p><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Ethernet de eficiencia energ\u00e9tica (EEE)<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>IEEE <strong>3az<\/strong> (2010) reduce el consumo de energ\u00eda durante periodos de baja actividad de datos sin modificar la interfaz Ethernet.<\/p><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\ud83c\udf10 Evoluci\u00f3n del IEEE 802.3: resumen<\/h2>\n\n\n\n<figure class=\"wp-block-table\">\n<table class=\"has-fixed-layout\">\n<colgroup><col style=\"width: 179px;\"\/><col style=\"width: 157px;\"\/><col style=\"min-width: 25px;\"\/><\/colgroup><tbody><tr><th colspan=\"1\" rowspan=\"1\" colwidth=\"179\"><p>Est\u00e1ndar<\/p><\/th><th colspan=\"1\" rowspan=\"1\" colwidth=\"157\"><p>A\u00f1o<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>Caracter\u00edstica destacada<\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"179\"><p>10BASE-T<\/p><\/td><td colspan=\"1\" rowspan=\"1\" colwidth=\"157\"><p>D\u00e9cada de 1990<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Ethernet sobre cobre a 10 Mbps<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"179\"><p>Ethernet r\u00e1pido<\/p><\/td><td colspan=\"1\" rowspan=\"1\" colwidth=\"157\"><p>1995<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>100 Mbps<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"179\"><p>1000BASE-T<\/p><\/td><td colspan=\"1\" rowspan=\"1\" colwidth=\"157\"><p>1999<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Gigabit sobre cobre<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"179\"><p>10GBASE-T<\/p><\/td><td colspan=\"1\" rowspan=\"1\" colwidth=\"157\"><p>2006<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>10 Gbps sobre cobre<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"179\"><p>2,5\/5GBASE-T<\/p><\/td><td colspan=\"1\" rowspan=\"1\" colwidth=\"157\"><p>2016<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Velocidades intermedias sobre Cat5e\/Cat6<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"179\"><p>40\/100GBASE<\/p><\/td><td colspan=\"1\" rowspan=\"1\" colwidth=\"157\"><p>2010+<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Fibra de alta velocidad para centros de datos<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"179\"><p>200\/400GBASE<\/p><\/td><td colspan=\"1\" rowspan=\"1\" colwidth=\"157\"><p>2018<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Ethernet de ultraalta velocidad<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"179\"><p>PoE\/PoE+\/PoE++<\/p><\/td><td colspan=\"1\" rowspan=\"1\" colwidth=\"157\"><p>2003\u20132018<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Entrega de energ\u00eda mediante Ethernet<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"179\"><p>EEE (802.3az)<\/p><\/td><td colspan=\"1\" rowspan=\"1\" colwidth=\"157\"><p>2010<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Ahorro energ\u00e9tico en estado inactivo<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">\ud83c\udf10 LINK-PP y IEEE 802.3: compatibilidad total<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u03a3\u03c4\u03b7\u03bd <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/\">LINK-PP<\/a>, todos los conectores RJ45 PoE y transformadores LAN pasan por un control de calidad riguroso para garantizar <strong>cumplimiento total con el IEEE 802.3<\/strong>, incluida la adhesi\u00f3n precisa al formato de trama, temporizaci\u00f3n y especificaciones de entrega de energ\u00eda PoE.<\/p>\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\/ed04ce8541e344ee8501d7be8271ee87-1024x608.webp\" alt=\"LINK-PP &amp; IEEE 802.3: Full Compatibility\" class=\"wp-image-5429\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/ed04ce8541e344ee8501d7be8271ee87-1024x608.webp 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/ed04ce8541e344ee8501d7be8271ee87-300x178.webp 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/ed04ce8541e344ee8501d7be8271ee87-768x456.webp 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/ed04ce8541e344ee8501d7be8271ee87-18x12.webp 18w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/ed04ce8541e344ee8501d7be8271ee87.webp 1200w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\">Conectores RJ45 PoE<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Ejemplos: <a href=\"https:\/\/www.link-pp.com\/products\/2611.html\" target=\"_blank\" rel=\"\">LPJG4928HENL<\/a><\/p><\/li>\n\n\n\n<li><p>Certificados para <strong>10\/100\/1000 Mbps<\/strong><\/p><\/li>\n\n\n\n<li><p>Cumplen <strong>IEEE 802.3at PoE+<\/strong> especificaciones el\u00e9ctricas.<\/p><\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">RJ45 integrado con magn\u00e9ticos y transformadores LAN<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Combina magn\u00e9ticos de se\u00f1al y filtrado LAN en una forma compacta.<\/p><\/li>\n\n\n\n<li><p>Soporte. <strong>de 10 Mbps a 10 Gbps<\/strong>, PoE, control de EMI y <strong>-40 \u00b0C a +85 \u00b0C<\/strong> rango operativo.<\/p><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\ud83c\udf10 <strong>\u03a3\u03c5\u03bc\u03c0\u03ad\u03c1\u03b1\u03c3\u03bc\u03b1<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u03a4\u03bf \/ \u0397 \/ \u039f <strong>est\u00e1ndar IEEE 802.3<\/strong> sustenta la red Ethernet, posibilitando interoperabilidad y escalabilidad globales. Al seguir estrictamente las especificaciones IEEE \u2014incluida la entrega precisa de energ\u00eda PoE y los formatos de trama\u2014 <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.link-pp.com\/\"><strong>LINK-PP<\/strong><\/a> ofrece componentes listos para las demandas actuales y futuras de redes.<\/p>","protected":false},"excerpt":{"rendered":"<p>\u039c\u03ac\u03b8\u03b5\u03c4\u03b5 \u03b3\u03b9\u03b1 \u03c4\u03bf \u03c0\u03c1\u03cc\u03c4\u03c5\u03c0\u03bf Ethernet IEEE 802.3, \u03c4\u03bf\u03bd \u03c1\u03cc\u03bb\u03bf \u03c4\u03bf\u03c5 \u03c3\u03c4\u03b9\u03c2 \u03b5\u03c0\u03b9\u03ba\u03bf\u03b9\u03bd\u03c9\u03bd\u03af\u03b5\u03c2 \u03b4\u03b9\u03ba\u03c4\u03cd\u03c9\u03bd \u03ba\u03b1\u03b9 \u03c4\u03bf\u03bd \u03c4\u03c1\u03cc\u03c0\u03bf \u03bc\u03b5 \u03c4\u03bf\u03bd \u03bf\u03c0\u03bf\u03af\u03bf \u03c4\u03b1 \u03bc\u03b1\u03b3\u03bd\u03b7\u03c4\u03b9\u03ba\u03ac PoE \u03c4\u03b7\u03c2 LINK-PP \u03c3\u03c5\u03bc\u03bc\u03bf\u03c1\u03c6\u03ce\u03bd\u03bf\u03bd\u03c4\u03b1\u03b9 \u03bc\u03b5 \u03b1\u03c5\u03c4\u03cc \u03c4\u03bf \u03c0\u03b1\u03b3\u03ba\u03cc\u03c3\u03bc\u03b9\u03bf \u03c0\u03c1\u03cc\u03c4\u03c5\u03c0\u03bf.<\/p>","protected":false},"author":1,"featured_media":5428,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[22,23],"class_list":["post-5430","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-knowledge-center","tag-integrated-rj45-connectors","tag-link-pp-lan-transformers"],"blocksy_meta":[],"acf":[],"_links":{"self":[{"href":"https:\/\/resourceslp.szlogic.cn\/el\/wp-json\/wp\/v2\/posts\/5430","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/resourceslp.szlogic.cn\/el\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/resourceslp.szlogic.cn\/el\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/el\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/el\/wp-json\/wp\/v2\/comments?post=5430"}],"version-history":[{"count":4,"href":"https:\/\/resourceslp.szlogic.cn\/el\/wp-json\/wp\/v2\/posts\/5430\/revisions"}],"predecessor-version":[{"id":11393,"href":"https:\/\/resourceslp.szlogic.cn\/el\/wp-json\/wp\/v2\/posts\/5430\/revisions\/11393"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/el\/wp-json\/wp\/v2\/media\/5428"}],"wp:attachment":[{"href":"https:\/\/resourceslp.szlogic.cn\/el\/wp-json\/wp\/v2\/media?parent=5430"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/el\/wp-json\/wp\/v2\/categories?post=5430"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/el\/wp-json\/wp\/v2\/tags?post=5430"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}