{"id":3485,"date":"2025-12-03T00:00:00","date_gmt":"2025-12-03T00:00:00","guid":{"rendered":"https:\/\/lp.szlogic.cn\/knowledge-center\/ieee-802-3bj-standard-100g-ethernet-backplane-copper\/"},"modified":"2026-06-22T04:24:50","modified_gmt":"2026-06-22T04:24:50","slug":"ieee-802-3bj-standard-100g-ethernet-backplane-copper","status":"publish","type":"post","link":"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/ieee-802-3bj-standard-100g-ethernet-backplane-copper","title":{"rendered":"IEEE 802.3bj: N\u1ec1n t\u1ea3ng c\u1ee7a k\u1ebft n\u1ed1i Ethernet 100G backplane v\u00e0 \u0111\u1ed3ng\u00a0 \u00a0\u00a0"},"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\/93c20816f7d249cc92a955b71ab3959e.webp\" alt=\"IEEE 802.3bj 40G\/100G Ethernet standard\" class=\"wp-image-3481\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/93c20816f7d249cc92a955b71ab3959e.webp 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/93c20816f7d249cc92a955b71ab3959e-300x178.webp 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/93c20816f7d249cc92a955b71ab3959e-1024x608.webp 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/93c20816f7d249cc92a955b71ab3959e-768x456.webp 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/93c20816f7d249cc92a955b71ab3959e-18x12.webp 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" >\ud83d\udd39 <strong>Gi\u1edbi thi\u1ec7u<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Khi c\u00e1c trung t\u00e2m d\u1eef li\u1ec7u m\u1edf r\u1ed9ng v\u1ec1 m\u1eadt \u0111\u1ed9 c\u1ed5ng cao h\u01a1n v\u00e0 n\u0103ng l\u1ef1c chuy\u1ec3n m\u1ea1ch nhanh h\u01a1n, nhu c\u1ea7u v\u1ec1 c\u00e1c giao di\u1ec7n \u0111i\u1ec7n t\u1ed1c \u0111\u1ed9 cao \u0111\u00e1ng tin c\u1eady tr\u1edf n\u00ean c\u1ea5p thi\u1ebft. IEEE<br> <strong>3bj<br><\/strong> ti\u00eau chu\u1ea9n\u2014\u0111\u01b0\u1ee3c ph\u00ea duy\u1ec7t n\u0103m 2014\u2014\u0111\u1ecbnh ngh\u0129a c\u00e1ch th\u1ee9c<br> <strong>Ethernet 40G v\u00e0 100G<br><\/strong> ho\u1ea1t \u0111\u1ed9ng tr\u00ean<br> <strong>c\u00e1c k\u00eanh backplane<br><\/strong> and <strong>c\u00e1c c\u1ee5m c\u00e1p \u0111\u1ed3ng<br><\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ti\u00eau chu\u1ea9n n\u00e0y l\u00e0 m\u1ed9t m\u1ed1c quan tr\u1ecdng trong qu\u00e1 tr\u00ecnh ti\u1ebfn h\u00f3a c\u1ee7a Ethernet, gi\u1edbi thi\u1ec7u c\u00e1c c\u00f4ng ngh\u1ec7 t\u00edn hi\u1ec7u 25 Gb\/s sau n\u00e0y tr\u1edf th\u00e0nh n\u1ec1n t\u1ea3ng cho Ethernet 25G, 50G, 100G, 200G v\u00e0 400G.<br>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">B\u00e0i vi\u1ebft n\u00e0y ph\u00e2n t\u00edch m\u1ee5c \u0111\u00edch, c\u00e1c c\u00f4ng ngh\u1ec7 then ch\u1ed1t, c\u00e1c lo\u1ea1i PHY v\u00e0 t\u00e1c \u0111\u1ed9ng \u0111\u1ebfn ng\u00e0nh c\u00f4ng nghi\u1ec7p c\u1ee7a IEEE 802.3bj\u2014t\u1ed1i \u01b0u h\u00f3a d\u00e0nh ri\u00eang cho k\u1ef9 s\u01b0, ki\u1ebfn tr\u00fac s\u01b0 m\u1ea1ng v\u00e0 ng\u01b0\u1eddi mua k\u1ef9 thu\u1eadt.<br>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >\ud83d\udd39 <strong>IEEE 802.3bj L\u00e0 G\u00ec?<br><\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">IEEE <strong>3bj<br><\/strong> l\u00e0 m\u1ed9t \u0111\u1eb7c t\u1ea3 l\u1edbp v\u1eadt l\u00fd (PHY) cho:<br><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>100GBASE-KR4<br><\/strong> \u2013 100 Gb\/s tr\u00ean backplane<br><\/p><\/li><li><p><strong>100GBASE-KP4<br><\/strong> \u2013 100 Gb\/s tr\u00ean backplane v\u1edbi<br> <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/what-is-pam4-four-level-pulse-amplitude-modulation-basics\/\">PAM4<\/a><\/p><\/li><li><p><strong>100GBASE-CR4<br><\/strong> \u2013 100 Gb\/s tr\u00ean c\u00e1p \u0111\u1ed3ng twinax<br><\/p><\/li><li><p><strong>40GBASE-CR4<br><\/strong> \u2013 40 Gb\/s tr\u00ean c\u00e1p \u0111\u1ed3ng twinax<br><\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ee5c ti\u00eau ch\u00ednh c\u1ee7a n\u00f3 l\u00e0 cho ph\u00e9p<br> <strong>25 Gb\/s tr\u00ean m\u1ed7i k\u00eanh<\/strong> truy\u1ec1n d\u1eabn trong c\u00e1c m\u00f4i tr\u01b0\u1eddng backplane PCB \u0111\u1ea7y th\u00e1ch th\u1ee9c v\u00e0 c\u00e1c li\u00ean k\u1ebft \u0111\u1ed3ng t\u1ea7m ng\u1eafn.<br>.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img decoding=\"async\" width=\"1200\" height=\"712\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/e94f7df1a810404496d1cfc413a2419d.webp\" alt=\"What Is IEEE 802.3bj?\" class=\"wp-image-3482\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/e94f7df1a810404496d1cfc413a2419d.webp 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/e94f7df1a810404496d1cfc413a2419d-300x178.webp 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/e94f7df1a810404496d1cfc413a2419d-1024x608.webp 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/e94f7df1a810404496d1cfc413a2419d-768x456.webp 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/e94f7df1a810404496d1cfc413a2419d-18x12.webp 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" >\ud83d\udd39 <strong>V\u00ec Sao IEEE 802.3bj L\u1ea1i Quan Tr\u1ecdng<br><\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Tr\u01b0\u1edbc khi c\u00f3 802.3bj, Ethernet ch\u1ee7 y\u1ebfu s\u1eed d\u1ee5ng<br> <strong>10 Gb\/s tr\u00ean m\u1ed7i lane<br><\/strong> (10GBASE-KR). Khi m\u1eadt \u0111\u1ed9 t\u0103ng l\u00ean, c\u00e1ch ti\u1ebfp c\u1eadn n\u00e0y kh\u00f4ng th\u1ec3 m\u1edf r\u1ed9ng m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3.<br>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">IEEE 802.3bj \u0111\u00e3 gi\u1edbi thi\u1ec7u th\u1ebf h\u1ec7 \u0111\u1ea7u ti\u00ean c\u1ee7a<br> <strong>c\u00e1c lane \u0111i\u1ec7n 25 Gb\/s<br><\/strong>, tr\u1edf th\u00e0nh kh\u1ed1i x\u00e2y d\u1ef1ng th\u1ef1c t\u1ebf cho:<br><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Ethernet 25G (<br><a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/25gbase-ieee-802-3by-single-lane-25gbe-standard\/\">3by<\/a>)<\/p><\/li><li><p>Ethernet 50G \/ 100G \/ 200G (<br><a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/ieee-802-3cd-50g-100g-200g-pam4-ethernet\/\">3cd<\/a>)<\/p><\/li><li><p>Ethernet 200G \/ 400G (<br><a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/ieee-802-3bs-200g-400g-ethernet-standard\/\">3bs<\/a>)<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">T\u00f3m l\u1ea1i:<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p><strong>3bj l\u00e0 \u0111i\u1ec3m chuy\u1ec3n ti\u1ebfp cho ph\u00e9p ra \u0111\u1eddi c\u00e1c th\u1ebf h\u1ec7 Ethernet t\u1ed1c \u0111\u1ed9 cao hi\u1ec7n \u0111\u1ea1i.<br>.<\/strong><\/p><\/blockquote>\n\n\n\n<h2 class=\"wp-block-heading\" >\ud83d\udd39 <strong>C\u00e1c C\u00f4ng Ngh\u1ec7 Then Ch\u1ed1t \u0110\u01b0\u1ee3c Gi\u1edbi Thi\u1ec7u B\u1edfi IEEE 802.3bj<br><\/strong><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" >T\u00edn hi\u1ec7u \u0111i\u1ec7n 25 Gb\/s<br><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Ti\u00eau chu\u1ea9n n\u00e0y gi\u1edbi thi\u1ec7u t\u00edn hi\u1ec7u 25G tr\u00ean m\u1ed9t lane duy nh\u1ea5t nh\u1eb1m gi\u1ea3m s\u1ed1 l\u01b0\u1ee3ng lane c\u1ea7n thi\u1ebft cho c\u00e1c li\u00ean k\u1ebft t\u1ed1c \u0111\u1ed9 cao.<br>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >\u0110i\u1ec1u ch\u1ebf PAM4 (d\u00e0nh cho KP4)<br><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">100GBASE-KP4 s\u1eed d\u1ee5ng<br> <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/what-is-pam4-four-level-pulse-amplitude-modulation-basics\/\"><strong>\u0111i\u1ec1u ch\u1ebf bi\u00ean \u0111\u1ed9 xung 4 m\u1ee9c (PAM4)<br><\/strong><\/a>, c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t ph\u1ed5 \u0111\u1ec3 ho\u1ea1t \u0111\u1ed9ng tr\u00ean c\u00e1c backplane c\u00f3 t\u1ed5n hao cao h\u01a1n.<br>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >S\u1eeda l\u1ed7i ti\u1ebfn (FEC)<br><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">3bj \u0111\u1ecbnh ngh\u0129a FEC m\u1ea1nh m\u1ebd<br> <strong>FEC Reed-Solomon<\/strong>, thi\u1ebft y\u1ebfu \u0111\u1ec3 b\u00f9 \u0111\u1eafp t\u1ed5n th\u1ea5t k\u00eanh v\u00e0 duy tr\u00ec<br> <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/understanding-what-is-bit-error-rate\/\">t\u1ef7 l\u1ec7 l\u1ed7i bit (BER)<br><\/a> hi\u1ec7u n\u0103ng.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >Y\u00eau c\u1ea7u c\u1ea3i ti\u1ebfn v\u1ec1 \u0111\u1ed9 to\u00e0n v\u1eb9n t\u00edn hi\u1ec7u<br><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Ti\u00eau chu\u1ea9n bao g\u1ed3m c\u00e1c \u0111\u1eb7c t\u1ea3 cho:<br><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>\u1ee9c ch\u1ebf nhi\u1ec5u xuy\u00ean \u00e2m<br><\/p><\/li><li><p>T\u1ed5n hao ph\u1ea3n x\u1ea1<\/p><\/li><li><p>dung sai jitter<\/p><\/li><li><p>C\u00e2n b\u1eb1ng k\u00eanh (DFE, CTLE)<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Nh\u1eefng c\u1ea3i ti\u1ebfn n\u00e0y \u0111\u00e3 m\u1edf \u0111\u01b0\u1eddng cho t\u1ed1c \u0111\u1ed9 cao <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/serdes-interfaces-high-speed-data-transfer-and-signal-integrity\/\">SERDES<br><\/a> \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c b\u1ed9 chuy\u1ec3n m\u1ea1ch v\u00e0 NIC hi\u1ec7n \u0111\u1ea1i.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >\ud83d\udd39 <strong>C\u00e1c lo\u1ea1i PHY \u0111\u01b0\u1ee3c \u0111\u1ecbnh ngh\u0129a trong IEEE 802.3bj<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">D\u01b0\u1edbi \u0111\u00e2y l\u00e0 b\u1ea3ng ph\u00e2n t\u00edch r\u00f5 r\u00e0ng t\u1eebng lo\u1ea1i PHY \u0111\u01b0\u1ee3c quy \u0111\u1ecbnh trong ti\u00eau chu\u1ea9n:<\/p>\n\n\n\n<figure class=\"wp-block-table\">\n<table class=\"has-fixed-layout\">\n<colgroup><col style=\"width: 173px;\"\/><col style=\"width: 98px;\"\/><col style=\"width: 144px;\"\/><col style=\"width: 135px;\"\/><col style=\"min-width: 25px;\"\/><\/colgroup><tbody><tr><th colspan=\"1\" rowspan=\"1\" colwidth=\"173\"><p>Lo\u1ea1i PHY<\/p><\/th><th colspan=\"1\" rowspan=\"1\" colwidth=\"98\"><p>T\u1ed1c \u0111\u1ed9<\/p><\/th><th colspan=\"1\" rowspan=\"1\" colwidth=\"144\"><p>M\u00f4i tr\u01b0\u1eddng truy\u1ec1n d\u1eabn<\/p><\/th><th colspan=\"1\" rowspan=\"1\" colwidth=\"135\"><p>M\u00f4 t\u1ea3<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>K\u1ebft n\u1ed1i kho\u1ea3ng c\u00e1ch ng\u1eafn<\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"173\"><p><strong>100GBASE-KR4<br><\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\" colwidth=\"98\"><p>100 Gb\/s<\/p><\/td><td colspan=\"1\" rowspan=\"1\" colwidth=\"144\"><p>M\u1eb7t ph\u1eb3ng sau (Backplane)<\/p><\/td><td colspan=\"1\" rowspan=\"1\" colwidth=\"135\"><p>4 k\u00eanh \u00d7 25 G<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>B\u1ea3ng m\u1ea1ch n\u1ec1n d\u1ea1ng khung m\u1eadt \u0111\u1ed9 cao<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"173\"><p><strong>100GBASE-KP4<br><\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\" colwidth=\"98\"><p>100 Gb\/s<\/p><\/td><td colspan=\"1\" rowspan=\"1\" colwidth=\"144\"><p>M\u1eb7t ph\u1eb3ng sau (Backplane)<\/p><\/td><td colspan=\"1\" rowspan=\"1\" colwidth=\"135\"><p>T\u00edn hi\u1ec7u PAM4<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>B\u1ea3ng m\u1ea1ch n\u1ec1n suy hao cao<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"173\"><p><strong>100GBASE-CR4<br><\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\" colwidth=\"98\"><p>100 Gb\/s<\/p><\/td><td colspan=\"1\" rowspan=\"1\" colwidth=\"144\"><p>C\u00e1p \u0111\u1ed3ng Twinax<\/p><\/td><td colspan=\"1\" rowspan=\"1\" colwidth=\"135\"><p><a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/dac-vs-aoc-differences-explained-for-modern-networks\/\">DAC\/AOC<\/a><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>B\u1ed9 chuy\u1ec3n m\u1ea1ch TOR, k\u1ebft n\u1ed1i t\u1ea7m ng\u1eafn<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"173\"><p><strong>40GBASE-CR4<br><\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\" colwidth=\"98\"><p>40 Gb\/s<\/p><\/td><td colspan=\"1\" rowspan=\"1\" colwidth=\"144\"><p>C\u00e1p \u0111\u1ed3ng Twinax<\/p><\/td><td colspan=\"1\" rowspan=\"1\" colwidth=\"135\"><p>4 k\u00eanh \u00d7 10 G<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>K\u1ebft n\u1ed1i \u0111\u1ed3ng 40G k\u1ebf th\u1eeba<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" >\ud83d\udd39 <strong>IEEE 802.3bj so v\u1edbi IEEE 802.3cd so v\u1edbi IEEE 802.3bs<\/strong><\/h2>\n\n\n\n<figure class=\"wp-block-table\">\n<table class=\"has-fixed-layout\">\n<colgroup><col style=\"width: 158px;\"\/><col style=\"width: 173px;\"\/><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><\/colgroup><tbody><tr><th colspan=\"1\" rowspan=\"1\" colwidth=\"158\"><p>\u0110\u1eb7c t\u00ednh<\/p><\/th><th colspan=\"1\" rowspan=\"1\" colwidth=\"173\"><p>3bj<br><\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p><a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/ieee-802-3cd-50g-100g-200g-pam4-ethernet\/\">3cd<\/a><\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p><a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/ieee-802-3bs-200g-400g-ethernet-standard\/\">3bs<\/a><\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"158\"><p>N\u0103m Ph\u00e1t H\u00e0nh<\/p><\/td><td colspan=\"1\" rowspan=\"1\" colwidth=\"173\"><p>2014<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>2018<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>2017<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"158\"><p>\u0110i\u1ec1u ch\u1ebf<\/p><\/td><td colspan=\"1\" rowspan=\"1\" colwidth=\"173\"><p>NRZ \/ PAM4<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>PAM4<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>PAM4<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"158\"><p>T\u1ed1c \u0111\u1ed9 t\u1ed1i \u0111a tr\u00ean m\u1ed7i k\u00eanh \u0111i\u1ec7n<\/p><\/td><td colspan=\"1\" rowspan=\"1\" colwidth=\"173\"><p>25G<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>50G<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>25G<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"158\"><p>\u1ee8ng d\u1ee5ng<\/p><\/td><td colspan=\"1\" rowspan=\"1\" colwidth=\"173\"><p>40G \/ 100G<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>50G \/ 100G \/ 200G<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>200G \/ 400G<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"158\"><p>C\u00e1c \u0111\u1ed5i m\u1edbi<\/p><\/td><td colspan=\"1\" rowspan=\"1\" colwidth=\"173\"><p>C\u00e1c k\u00eanh 25G \u0111\u1ea7u ti\u00ean<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>C\u00e1c k\u00eanh 50G, <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/tdecq-pam4-optical-transmitter-quality-metric\/\">TDECQ<\/a><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Quang h\u1ecdc 400G <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/polarization-mode-dispersion-in-fiber-optics\/\">PMD<\/a><\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">3bj l\u00e0 \u0111i\u1ec3m chuy\u1ec3n \u0111\u1ed5i n\u1ec1n t\u1ea3ng, trong khi 802.3bs\/cd m\u1edf r\u1ed9ng t\u1ed1c \u0111\u1ed9 v\u00e0 giao di\u1ec7n quang.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >\ud83d\udd39 <strong>\u1ee8ng d\u1ee5ng th\u1ef1c t\u1ebf c\u1ee7a IEEE 802.3bj<\/strong><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Chuy\u1ec3n m\u1ea1ch trung t\u00e2m d\u1eef li\u1ec7u ki\u1ec3u spine-leaf<\/p><\/li><li><p>B\u1ea3ng m\u1ea1ch n\u1ec1n d\u1ea1ng m\u00f4-\u0111un m\u1eadt \u0111\u1ed9 cao<\/p><\/li><li><p>B\u1ed9 c\u00e1p \u0111\u1ed3ng DAC\/AOC t\u1ea7m ng\u1eafn<\/p><\/li><li><p>K\u1ebft n\u1ed1i m\u00e1y ch\u1ee7 t\u1edbi b\u1ed9 chuy\u1ec3n m\u1ea1ch \u0111\u1ec9nh k\u1ec7 (ToR)<\/p><\/li><li><p>K\u1ebft n\u1ed1i gi\u1eefa b\u1ea3ng m\u1ea1ch gi\u1eefa (mid-plane) v\u00e0 b\u1ea3ng m\u1ea1ch n\u1ec1n (backplane) trong khung<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">B\u1ea5t c\u1ee9 n\u01a1i n\u00e0o c\u1ea7n Ethernet 100G qua c\u00e1c k\u00eanh \u0111i\u1ec7n, PHY tu\u00e2n th\u1ee7 802.3bj \u0111\u1ec1u xu\u1ea5t hi\u1ec7n.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >\ud83d\udd39 <strong>LINK-PP h\u1ed7 tr\u1ee3 tri\u1ec3n khai IEEE 802.3bj nh\u01b0 th\u1ebf n\u00e0o<\/strong><\/h2>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img decoding=\"async\" width=\"1200\" height=\"712\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/92845cfe0c2c4e00bc2140d559936307.webp\" alt=\"SFP+, SFP28, QSFP+, QSFP28 optical transceivers\" class=\"wp-image-3483\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/92845cfe0c2c4e00bc2140d559936307.webp 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/92845cfe0c2c4e00bc2140d559936307-300x178.webp 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/92845cfe0c2c4e00bc2140d559936307-1024x608.webp 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/92845cfe0c2c4e00bc2140d559936307-768x456.webp 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/92845cfe0c2c4e00bc2140d559936307-18x12.webp 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">LINK-PP cung c\u1ea5p nhi\u1ec1u l\u1ef1a ch\u1ecdn <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/products\/476023.htm\"><strong>SFP+<\/strong><\/a><strong>, <\/strong><a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/products\/491665.htm\"><strong>SFP28<\/strong><\/a><strong>, <\/strong><a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/products\/482749.htm\"><strong>QSFP+<\/strong><\/a><strong>, <\/strong><a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/products\/491587.htm\"><strong>QSFP28<br><\/strong><\/a> b\u1ed9 thu ph\u00e1t quang v\u00e0 module \u0111\u1ed3ng t\u01b0\u01a1ng th\u00edch li\u1ec1n m\u1ea1ch v\u1edbi b\u1ea3ng m\u1ea1ch n\u1ec1n \u0111i\u1ec7n ho\u1eb7c b\u1ed9 chuy\u1ec3n m\u1ea1ch d\u1ef1a tr\u00ean 802.3bj.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c module t\u01b0\u01a1ng th\u00edch c\u1ee7a ch\u00fang t\u00f4i bao g\u1ed3m:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>D\u00f2ng 100G QSFP28 SR4 \/ LR4 \/ PSM4<\/strong><\/p><\/li><li><p><strong>Gi\u1ea3i ph\u00e1p SFP v\u00e0 QSFP 10G \/ 25G \/ 40G \/ 100G<\/strong><\/p><\/li><li><p><a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/store-26454-dac-aoc-aec-cables.htm\"><strong>S\u1ea3n ph\u1ea9m c\u00e1p \u0111\u1ed3ng g\u1eafn tr\u1ef1c ti\u1ebfp (DAC)<\/strong><\/a><\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Xem danh s\u00e1ch s\u1ea3n ph\u1ea9m t\u1ea1i \u0111\u00e2y:<br\/>\ud83d\udd17 https:\/\/www.l-p.com\/store-25432-optics-transceivers-sfp<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c module n\u00e0y \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 b\u1ed5 tr\u1ee3 h\u1ec7 th\u1ed1ng s\u1eed d\u1ee5ng PHY 802.3bj, \u0111\u1ea3m b\u1ea3o k\u1ebft n\u1ed1i trung t\u00e2m d\u1eef li\u1ec7u \u1ed5n \u0111\u1ecbnh, t\u1ed1c \u0111\u1ed9 cao v\u00e0 t\u1ed1i \u01b0u chi ph\u00ed.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >\ud83d\udd39 <strong>L\u1ee3i th\u1ebf c\u1ee7a h\u1ec7 th\u1ed1ng tu\u00e2n th\u1ee7 IEEE 802.3bj<\/strong><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" >\u2714 Ti\u00eau th\u1ee5 \u0111i\u1ec7n n\u0103ng th\u1ea5p h\u01a1n<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">So v\u1edbi li\u00ean k\u1ebft quang \u1edf kho\u1ea3ng c\u00e1ch ng\u1eafn.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >\u2714 Tri\u1ec3n khai ti\u1ebft ki\u1ec7m chi ph\u00ed<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Li\u00ean k\u1ebft \u0111\u1ed3ng gi\u1ea3m chi ph\u00ed \u0111\u1ea7u t\u01b0 ban \u0111\u1ea7u (CAPEX) cho b\u1ed9 chuy\u1ec3n m\u1ea1ch TOR.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >\u2714 M\u1eadt \u0111\u1ed9 cao<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c k\u00eanh 25G cho ph\u00e9p t\u0103ng b\u0103ng th\u00f4ng tr\u00ean m\u1ed7i \u0111\u1ea7u n\u1ed1i v\u00e0 b\u1ea3ng m\u1ea1ch n\u1ec1n.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >\u2714 Kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng theo c\u00e1c ti\u00eau chu\u1ea9n t\u01b0\u01a1ng lai<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Ki\u1ebfn tr\u00fac k\u00eanh \u0111i\u1ec7n t\u01b0\u01a1ng t\u1ef1 ph\u00e1t tri\u1ec3n l\u00ean 100G\/200G\/400G.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >\ud83d\udd39<strong>K\u1ebft lu\u1eadn<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>IEEE 802.3bj<\/strong> l\u00e0 m\u1ed9t trong nh\u1eefng ti\u00eau chu\u1ea9n quan tr\u1ecdng nh\u1ea5t trong l\u1ecbch s\u1eed Ethernet. Ti\u00eau chu\u1ea9n n\u00e0y \u0111\u00e3 gi\u1edbi thi\u1ec7u c\u00f4ng ngh\u1ec7 \u0111\u01b0\u1eddng truy\u1ec1n \u0111i\u1ec7n 25G, \u0111\u1ecbnh ngh\u0129a c\u00e1c gi\u1ea3i ph\u00e1p \u0111\u1ed3ng v\u00e0 m\u1eb7t ph\u1eb3ng sau (backplane) \u0111\u00e1ng tin c\u1eady cho t\u1ed1c \u0111\u1ed9 100G\/40G, v\u00e0 \u0111\u1eb7t n\u1ec1n t\u1ea3ng cho m\u1ecdi ph\u00e1t tri\u1ec3n Ethernet t\u1ed1c \u0111\u1ed9 cao trong t\u01b0\u01a1ng lai.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed1i v\u1edbi c\u00e1c trung t\u00e2m d\u1eef li\u1ec7u hi\u1ec7n \u0111\u1ea1i \u0111ang \u00e1p d\u1ee5ng t\u1ed1c \u0111\u1ed9 100G v\u00e0 chu\u1ea9n b\u1ecb n\u00e2ng c\u1ea5p l\u00ean 200G\/400G, vi\u1ec7c hi\u1ec3u r\u00f5 ti\u00eau chu\u1ea9n 802.3bj l\u00e0 \u0111i\u1ec1u thi\u1ebft y\u1ebfu\u2014v\u00e0 <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/\">LINK-PP<\/a> cung c\u1ea5p \u0111\u1ea7y \u0111\u1ee7 c\u00e1c gi\u1ea3i ph\u00e1p k\u1ebft n\u1ed1i quang h\u1ecdc v\u00e0 \u0111\u1ed3ng ho\u00e0n to\u00e0n t\u01b0\u01a1ng th\u00edch cho m\u1ecdi giai \u0111o\u1ea1n c\u1ee7a qu\u00e1 tr\u00ecnh chuy\u1ec3n \u0111\u1ed5i \u0111\u00f3.<\/p>","protected":false},"excerpt":{"rendered":"<p>T\u00ecm hi\u1ec3u ti\u00eau chu\u1ea9n Ethernet 100G IEEE 802.3bj d\u00e0nh cho k\u1ebft n\u1ed1i backplane v\u00e0 c\u00e1p \u0111\u1ed3ng. Kh\u00e1m ph\u00e1 PAM4, FEC, c\u00e1c PHY KP4\/KR4\/CR4 v\u00e0 c\u00e1ch c\u00e1c module LINK-PP h\u1ed7 tr\u1ee3 c\u00e1c m\u1ea1ng t\u1ed1c \u0111\u1ed9 cao.<\/p>","protected":false},"author":1,"featured_media":3484,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[19,26],"class_list":["post-3485","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-knowledge-center","tag-aoc-dac-cables","tag-optics-transceivers"],"blocksy_meta":[],"acf":[],"_links":{"self":[{"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/3485","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/comments?post=3485"}],"version-history":[{"count":4,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/3485\/revisions"}],"predecessor-version":[{"id":10807,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/3485\/revisions\/10807"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/media\/3484"}],"wp:attachment":[{"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/media?parent=3485"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/categories?post=3485"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/tags?post=3485"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}