{"id":3828,"date":"2025-11-17T00:00:00","date_gmt":"2025-11-17T00:00:00","guid":{"rendered":"https:\/\/lp.szlogic.cn\/knowledge-center\/xlppi-electrical-interface-in-40g-qsfp-plus-modules-explained\/"},"modified":"2026-06-22T05:01:09","modified_gmt":"2026-06-22T05:01:09","slug":"xlppi-electrical-interface-in-40g-qsfp-plus-modules-explained","status":"publish","type":"post","link":"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/xlppi-electrical-interface-in-40g-qsfp-plus-modules-explained","title":{"rendered":"Giao di\u1ec7n \u0111i\u1ec7n XLPPI trong c\u00e1c m\u00f4-\u0111un 40G QSFP+ l\u00e0 g\u00ec?"},"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\/345fe12a6d574a62875df96d0b04a1b5.webp\" alt=\"What Is the XLPPI Electrical Interface in 40G QSFP+ Modules?\" class=\"wp-image-3826\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/345fe12a6d574a62875df96d0b04a1b5.webp 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/345fe12a6d574a62875df96d0b04a1b5-300x178.webp 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/345fe12a6d574a62875df96d0b04a1b5-1024x608.webp 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/345fe12a6d574a62875df96d0b04a1b5-768x456.webp 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/345fe12a6d574a62875df96d0b04a1b5-18x12.webp 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Khi c\u00e1c m\u1ea1ng 40 GbE ti\u1ebfp t\u1ee5c ph\u1ee5c v\u1ee5 c\u00e1c n\u1ec1n t\u1ea3ng \u0111i\u1ec7n to\u00e1n \u0111\u00e1m m\u00e2y, trung t\u00e2m d\u1eef li\u1ec7u quy m\u00f4 l\u1edbn v\u00e0 c\u00e1c m\u00f4i tr\u01b0\u1eddng chuy\u1ec3n m\u1ea1ch m\u1eadt \u0111\u1ed9 cao, giao di\u1ec7n \u0111i\u1ec7n gi\u1eefa thi\u1ebft b\u1ecb ch\u1ee7 <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/what-is-application-specific-integrated-circuit-asic\/\">ASIC<\/a> v\u00e0 m\u00f4-\u0111un c\u1eafm r\u1eddi tr\u1edf n\u00ean quan tr\u1ecdng ngang b\u1eb1ng c\u00e1c th\u00e0nh ph\u1ea7n quang h\u1ecdc. M\u1ed9t giao di\u1ec7n nh\u01b0 v\u1eady, th\u01b0\u1eddng \u0111\u01b0\u1ee3c \u0111\u1ec1 c\u1eadp trong <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/file\/datasheet\/lq-sw40-sr4c.pdf\">b\u1ea3ng th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt QSFP+ 40 Gigabit<\/a>, l\u00e0 <strong>XLPPI<\/strong>\u2014l\u00e0 <em>Giao di\u1ec7n V\u1eadt l\u00fd Song song 40 Gigabit<\/em> \u0111\u01b0\u1ee3c \u0111\u1ecbnh ngh\u0129a trong ki\u1ebfn tr\u00fac Ethernet IEEE.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">B\u00e0i vi\u1ebft n\u00e0y cung c\u1ea5p l\u1eddi gi\u1ea3i th\u00edch r\u00f5 r\u00e0ng v\u00e0 th\u1ef1c t\u1ebf v\u1ec1 XLPPI v\u00e0 minh h\u1ecda c\u00e1ch th\u1ee9c ho\u1ea1t \u0111\u1ed9ng c\u1ee7a n\u00f3 b\u00ean trong <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/products\/491483.htm\"><strong>m\u00f4-\u0111un b\u1ed9 thu ph\u00e1t 40G QSFP+ SWDM LQ-SW40-SR4C c\u1ee7a LINK-PP<\/strong><\/a>, m\u1ed9t m\u00f4-\u0111un ph\u1ed5 bi\u1ebfn cho c\u00e1c \u1ee9ng d\u1ee5ng s\u1ee3i quang \u0111a mode (MMF) kho\u1ea3ng c\u00e1ch ng\u1eafn \u1edf t\u1ed1c \u0111\u1ed9 40 Gbps.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >Nh\u1eefng \u0111i\u1ec3m ch\u00ednh c\u1ea7n ghi nh\u1edb<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Giao di\u1ec7n \u0111i\u1ec7n XLPPI s\u1eed d\u1ee5ng b\u1ed1n k\u00eanh song song \u0111\u1ec3 k\u1ebft n\u1ed1i c\u00e1c m\u00f4-\u0111un QSFP+ 40G v\u1edbi ph\u1ea7n c\u1ee9ng m\u1ea1ng, cho ph\u00e9p truy\u1ec1n d\u1eef li\u1ec7u t\u1ed1c \u0111\u1ed9 cao.<\/p><\/li><li><p>Vi\u1ec7c hi\u1ec3u r\u00f5 ki\u1ebfn tr\u00fac k\u00eanh XLPPI gi\u00fap l\u1eadp k\u1ebf ho\u1ea1ch b\u1ed1 tr\u00ed m\u1ea1ng v\u00e0 kh\u1eafc ph\u1ee5c s\u1ef1 c\u1ed1 t\u00edn hi\u1ec7u m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3.<\/p><\/li><li><p>XLPPI h\u1ed7 tr\u1ee3 c\u1ea3 m\u00f4-\u0111un s\u1ee3i quang l\u1eabn m\u00f4-\u0111un \u0111\u1ed3ng, mang l\u1ea1i t\u00ednh linh ho\u1ea1t v\u00e0 kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch cho thi\u1ebft k\u1ebf m\u1ea1ng.<\/p><\/li><li><p>Duy tr\u00ec \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh t\u00edn hi\u1ec7u l\u00e0 y\u1ebfu t\u1ed1 then ch\u1ed1t \u0111\u1ec3 tr\u00e1nh l\u1ed7i truy\u1ec1n d\u1eabn; tu\u00e2n th\u1ee7 c\u00e1c y\u00eau c\u1ea7u v\u1ec1 <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/how-to-reduce-jitter-in-optical-networks-for-stability\/\">\u0111\u1ed9 gi\u1eadt (jitter)<\/a> v\u00e0 bi\u1ec3u \u0111\u1ed3 m\u1eaft \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o hi\u1ec7u su\u1ea5t \u0111\u00e1ng tin c\u1eady.<\/p><\/li><li><p>Khi thi\u1ebft k\u1ebf trung t\u00e2m d\u1eef li\u1ec7u c\u1ee7a b\u1ea1n, h\u00e3y \u0111\u1ea3m b\u1ea3o ph\u1ea7n c\u1ee9ng h\u1ed7 tr\u1ee3 XLPPI nh\u1eb1m n\u00e2ng cao kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng m\u1ea1ng v\u00e0 \u0111\u1ea3m b\u1ea3o t\u00ednh s\u1eb5n s\u00e0ng cho t\u01b0\u01a1ng lai.<\/p><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" >\u2705 T\u1ed5ng quan v\u1ec1 Giao di\u1ec7n \u0110i\u1ec7n XLPPI<\/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\/9cd1ef29cc8048e184bfce71116e12dd.webp\" alt=\"XLPPI Electrical Interface Overview\" class=\"wp-image-3343\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/9cd1ef29cc8048e184bfce71116e12dd.webp 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/9cd1ef29cc8048e184bfce71116e12dd-300x178.webp 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/9cd1ef29cc8048e184bfce71116e12dd-1024x608.webp 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/9cd1ef29cc8048e184bfce71116e12dd-768x456.webp 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/9cd1ef29cc8048e184bfce71116e12dd-18x12.webp 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" >XLPPI l\u00e0 g\u00ec?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>XLPPI (Giao di\u1ec7n V\u1eadt l\u00fd Song song 40G)<\/strong> l\u00e0 m\u1ed9t giao di\u1ec7n \u0111i\u1ec7n g\u1ed3m b\u1ed1n \u0111\u01b0\u1eddng d\u1eabn \u0111\u01b0\u1ee3c \u0111\u1ecbnh ngh\u0129a trong h\u1ecd ti\u00eau chu\u1ea9n IEEE 802.3ba d\u00e0nh cho Ethernet 40 Gb\/s. Giao di\u1ec7n n\u00e0y x\u00e1c l\u1eadp c\u00e1ch th\u1ee9c giao ti\u1ebfp \u0111i\u1ec7n gi\u1eefa PHY 40G \u1edf ph\u00eda thi\u1ebft b\u1ecb ch\u1ee7 v\u1edbi m\u1ed9t <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/store-26153-40g-qsfp.htm\">m\u00f4-\u0111un QSFP+<\/a>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >C\u00e1c \u0111\u1eb7c \u0111i\u1ec3m ch\u00ednh c\u1ee7a XLPPI<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>4 \u0111\u01b0\u1eddng d\u1eabn \u0111i\u1ec7n<\/strong>, m\u1ed7i \u0111\u01b0\u1eddng ho\u1ea1t \u0111\u1ed9ng \u1edf t\u1ed1c \u0111\u1ed9 <strong>~10,3125 Gb\/s<\/strong><\/p><\/li><li><p><strong>T\u00edn hi\u1ec7u vi sai CML<\/strong>, \u0111\u01b0\u1ee3c t\u1ed1i \u01b0u h\u00f3a cho m\u00f4i tr\u01b0\u1eddng b\u1ea3ng m\u1ea1ch in (PCB) t\u1ed1c \u0111\u1ed9 cao<\/p><\/li><li><p><strong>Y\u00eau c\u1ea7u \u0111\u1ed9 nhi\u1ec5u th\u1ea5p (low-jitter)<\/strong>, v\u1edbi c\u00e1c m\u1eabu m\u1eb7t n\u1ea1 bi\u1ec3u \u0111\u1ed3 m\u1eaft (eye mask) \u0111\u01b0\u1ee3c \u0111\u1ecbnh ngh\u0129a r\u00f5 r\u00e0ng cho b\u1ed9 ph\u00e1t\/b\u1ed9 thu<\/p><\/li><li><p><strong>D\u00e0nh ri\u00eang cho li\u00ean k\u1ebft t\u1eeb chip \u0111\u1ebfn m\u00f4-\u0111un<\/strong>, kh\u00f4ng ph\u1ea3i cho li\u00ean k\u1ebft chip \u0111\u1ebfn chip<\/p><\/li><li><p>L\u00e0 m\u1ed9t ph\u1ea7n trong h\u1ecd <strong>nPPI (Giao di\u1ec7n V\u1eadt l\u00fd Song song n-lane)<\/strong> do IEEE \u0111\u1ecbnh ngh\u0129a cho c\u00e1c b\u1ed9 thu ph\u00e1t quang c\u1eafm r\u1eddi<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">XLPPI cho ph\u00e9p chia m\u1ed9t li\u00ean k\u1ebft 40G th\u00e0nh c\u00e1c l\u00e0n c\u00f3 t\u1ed1c \u0111\u1ed9 kho\u1ea3ng 10G d\u1ec5 qu\u1ea3n l\u00fd h\u01a1n, gi\u1ea3m \u0111\u1ed9 ph\u1ee9c t\u1ea1p v\u1ec1 t\u00ednh to\u00e0n v\u1eb9n t\u00edn hi\u1ec7u trong khi v\u1eabn \u0111\u1ea3m b\u1ea3o kh\u1ea3 n\u0103ng t\u01b0\u01a1ng t\u00e1c gi\u1eefa c\u00e1c nh\u00e0 cung c\u1ea5p module kh\u00e1c nhau.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >T\u1ed1c \u0111\u1ed9 t\u00edn hi\u1ec7u v\u00e0 \u00e1nh x\u1ea1 k\u00eanh<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">B\u1ea1n c\u1ea7n bi\u1ebft c\u00e1ch giao di\u1ec7n \u0111i\u1ec7n XLPPI x\u1eed l\u00fd t\u1ed1c \u0111\u1ed9 t\u00edn hi\u1ec7u v\u00e0 \u00e1nh x\u1ea1 k\u00eanh. M\u1ed7i l\u00e0n ho\u1ea1t \u0111\u1ed9ng \u1edf t\u1ed1c \u0111\u1ed9 c\u1ed1 \u0111\u1ecbnh kho\u1ea3ng 10,3125 Gb\/s. Giao di\u1ec7n chia lu\u1ed3ng d\u1eef li\u1ec7u 40 Gbps c\u1ee7a b\u1ea1n th\u00e0nh b\u1ed1n ph\u1ea7n b\u1eb1ng nhau. Vi\u1ec7c chia n\u00e0y gi\u00fap gi\u1eef cho c\u00e1c t\u00edn hi\u1ec7u c\u1ee7a b\u1ea1n \u0111\u1ed3ng b\u1ed9 v\u00e0 gi\u1ea3m nguy c\u01a1 x\u1ea3y ra l\u1ed7i.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Qu\u00e1 tr\u00ecnh \u00e1nh x\u1ea1 r\u1ea5t \u0111\u01a1n gi\u1ea3n. B\u1ed9 chuy\u1ec3n m\u1ea1ch c\u1ee7a b\u1ea1n g\u1eedi b\u1ed1n t\u00edn hi\u1ec7u \u0111i\u1ec7n \u0111\u1ebfn b\u1ed9 thu ph\u00e1t. B\u00ean trong module, m\u1ed7i t\u00edn hi\u1ec7u \u0111\u01b0\u1ee3c chuy\u1ec3n \u0111\u1ed5i th\u00e0nh m\u1ed9t b\u01b0\u1edbc s\u00f3ng quang h\u1ecdc ri\u00eang bi\u1ec7t. Module k\u1ebft h\u1ee3p c\u00e1c b\u01b0\u1edbc s\u00f3ng n\u00e0y l\u1ea1i v\u1edbi nhau v\u00e0 truy\u1ec1n ch\u00fang qua m\u1ed9t s\u1ee3i c\u00e1p quang duy nh\u1ea5t. \u1ede \u0111\u1ea7u kia, m\u1ed9t module kh\u00e1c t\u00e1ch c\u00e1c t\u00edn hi\u1ec7u ra v\u00e0 tr\u1ea3 l\u1ea1i ch\u00fang d\u01b0\u1edbi d\u1ea1ng b\u1ed1n l\u00e0n t\u00edn hi\u1ec7u \u0111i\u1ec7n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">D\u01b0\u1edbi \u0111\u00e2y l\u00e0 b\u1ea3ng minh h\u1ecda c\u00e1ch c\u1ea5u tr\u00fac b\u1ed1n l\u00e0n ho\u1ea1t \u0111\u1ed9ng trong th\u1ef1c t\u1ebf:<\/p>\n\n\n\n<figure class=\"wp-block-table\">\n<table class=\"has-fixed-layout\">\n<colgroup><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><\/colgroup><tbody><tr><th colspan=\"1\" rowspan=\"1\"><p>B\u01b0\u1edbc<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>M\u00f4 t\u1ea3<\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>1<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>B\u1ed9 thu ph\u00e1t nh\u1eadn b\u1ed1n l\u00e0n t\u00edn hi\u1ec7u \u0111i\u1ec7n 10G t\u1eeb b\u1ed9 chuy\u1ec3n m\u1ea1ch c\u1ee7a b\u1ea1n.<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>2<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>M\u1ed7i l\u00e0n \u0111\u01b0\u1ee3c chuy\u1ec3n \u0111\u1ed5i sang m\u1ed9t b\u01b0\u1edbc s\u00f3ng quang h\u1ecdc c\u1ee5 th\u1ec3.<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>3<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Module k\u1ebft h\u1ee3p b\u1ed1n b\u01b0\u1edbc s\u00f3ng v\u00e0o m\u1ed9t s\u1ee3i c\u00e1p quang.<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>4<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>T\u00edn hi\u1ec7u k\u1ebft h\u1ee3p truy\u1ec1n \u0111i qua c\u00e1p quang.<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>5<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>M\u1ed9t module kh\u00e1c nh\u1eadn t\u00edn hi\u1ec7u.<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>6<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Module t\u00e1ch c\u00e1c b\u01b0\u1edbc s\u00f3ng ra.<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>7<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>M\u1ed7i b\u01b0\u1edbc s\u00f3ng \u0111\u01b0\u1ee3c chuy\u1ec3n \u0111\u1ed5i tr\u1edf l\u1ea1i th\u00e0nh m\u1ed9t l\u00e0n t\u00edn hi\u1ec7u \u0111i\u1ec7n \u0111\u1ec3 g\u1eedi t\u1edbi b\u1ed9 chuy\u1ec3n m\u1ea1ch c\u1ee7a b\u1ea1n.<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">B\u1ea1n h\u01b0\u1edfng l\u1ee3i t\u1eeb vi\u1ec7c \u00e1nh x\u1ea1 n\u00e0y v\u00ec n\u00f3 h\u1ed7 tr\u1ee3 b\u0103ng th\u00f4ng cao v\u00e0 gi\u00fap m\u1ea1ng c\u1ee7a b\u1ea1n linh ho\u1ea1t h\u01a1n. Giao di\u1ec7n \u0111i\u1ec7n XLPPI cho ph\u00e9p b\u1ea1n s\u1eed d\u1ee5ng c\u1ea3 module quang v\u00e0 module \u0111\u1ed3ng trong h\u1ec7 th\u1ed1ng Ethernet 40 Gigabit c\u1ee7a m\u00ecnh.<\/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\/5a70e617c639414b9bd7c2ff6ae71846.webp\" alt=\"QSFP+ Module\" class=\"wp-image-3827\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/5a70e617c639414b9bd7c2ff6ae71846.webp 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/5a70e617c639414b9bd7c2ff6ae71846-300x178.webp 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/5a70e617c639414b9bd7c2ff6ae71846-1024x608.webp 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/5a70e617c639414b9bd7c2ff6ae71846-768x456.webp 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/5a70e617c639414b9bd7c2ff6ae71846-18x12.webp 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" >\u2705 C\u00e1ch XLPPI ho\u1ea1t \u0111\u1ed9ng b\u00ean trong module QSFP+ LINK-PP LQ-SW40-SR4C<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/products\/491483.htm\"><strong>LINK-PP LQ-SW40-SR4C<br><\/strong><\/a> l\u00e0 b\u1ed9 thu ph\u00e1t QSFP+ 40G \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf cho c\u00e1p quang \u0111a mode t\u1ea7m ng\u1eafn s\u1eed d\u1ee5ng c\u00f4ng ngh\u1ec7 SWDM. Module t\u00edch h\u1ee3p:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>4 l\u00e0n \u0111\u1ea7u v\u00e0o\/\u0111\u1ea7u ra \u0111i\u1ec7n 10G<\/strong> (XLPPI)<\/p><\/li><li><p><strong>4 b\u01b0\u1edbc s\u00f3ng \u0111\u01b0\u1ee3c gh\u00e9p k\u00eanh trong mi\u1ec1n quang<\/strong> (SWDM4)<\/p><\/li><li><p><strong>Giao di\u1ec7n LC duplex<\/strong> thay v\u00ec d\u00f9ng \u0111\u1ea7u n\u1ed1i MPO<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">D\u01b0\u1edbi \u0111\u00e2y l\u00e0 c\u00e1ch XLPPI \u0111\u01b0\u1ee3c t\u00edch h\u1ee3p v\u00e0o \u0111\u01b0\u1eddng d\u1eabn d\u1eef li\u1ec7u n\u1ed9i b\u1ed9 c\u1ee7a module:<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >\u25b7 T\u00edn hi\u1ec7u \u0111i\u1ec7n t\u1eeb thi\u1ebft b\u1ecb ch\u1ee7 \u0111\u1ebfn module<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">ASIC b\u1ed9 chuy\u1ec3n m\u1ea1ch ho\u1eb7c NIC g\u1eedi b\u1ed1n lu\u1ed3ng d\u1eef li\u1ec7u 10G \u0111\u1ed3ng b\u1ed9 qua <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/store-24887-qsfp-cage-connectors.htm\">V\u1ecf b\u1ecdc QSFP+<\/a>. C\u00e1c \u0111\u01b0\u1eddng truy\u1ec1n n\u00e0y tu\u00e2n th\u1ee7 c\u00e1c \u0111\u1eb7c t\u1ea3 \u0111i\u1ec7n c\u1ee7a IEEE XLPPI, bao g\u1ed3m bi\u00ean \u0111\u1ed9, dung sai nhi\u1ec5u (jitter) v\u00e0 t\u00edn hi\u1ec7u vi sai gh\u00e9p n\u1ed1i xoay chi\u1ec1u (AC-coupled differential signaling).<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >\u25b7 Chuy\u1ec3n \u0111\u1ed5i \u0111i\u1ec7n\u2013quang<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">B\u00ean trong module LQ-SW40-SR4C, b\u1ed1n \u0111\u01b0\u1eddng truy\u1ec1n XLPPI c\u1ea5p t\u00edn hi\u1ec7u cho b\u1ed9 \u0111i\u1ec1u khi\u1ec3n\/gi\u1ea3m t\u1ed1c \u0111\u1ed9 (driver\/gearbox) t\u1ed1c \u0111\u1ed9 cao v\u00e0 <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/overview-of-vcsel\/\">Laser VCSEL.<\/a> m\u1ea3ng. Module k\u1ebft h\u1ee3p d\u1eef li\u1ec7u \u0111i\u1ec7n th\u00e0nh <strong>b\u1ed1n b\u01b0\u1edbc s\u00f3ng SWDM<\/strong>, cho ph\u00e9p t\u1ed1c \u0111\u1ed9 40 Gb\/s tr\u00ean c\u00e1p quang \u0111a mode duplex.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >\u25b7 Qu\u00e1 tr\u00ecnh ng\u01b0\u1ee3c l\u1ea1i khi nh\u1eadn t\u00edn hi\u1ec7u<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u1ede ph\u00eda RX, c\u00e1c \u0111i\u1ed1t quang (photodiodes) t\u00e1ch k\u00eanh c\u00e1c b\u01b0\u1edbc s\u00f3ng \u0111\u1ea7u v\u00e0o, chuy\u1ec3n \u0111\u1ed5i c\u00f4ng su\u1ea5t quang th\u00e0nh b\u1ed1n \u0111\u01b0\u1eddng truy\u1ec1n \u0111i\u1ec7n 10G v\u00e0 xu\u1ea5t ch\u00fang tr\u1edf l\u1ea1i thi\u1ebft b\u1ecb ch\u1ee7 th\u00f4ng qua giao di\u1ec7n XLPPI.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >\u25b7 L\u00fd do \u0111i\u1ec1u n\u00e0y quan tr\u1ecdng<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c s\u1eed d\u1ee5ng XLPPI \u0111\u1ea3m b\u1ea3o module v\u1eabn t\u01b0\u01a1ng th\u00edch v\u1edbi c\u00e1c switch 40G ti\u00eau chu\u1ea9n c\u00f4ng nghi\u1ec7p, tr\u00e1nh c\u00e1c giao di\u1ec7n ri\u00eang bi\u1ec7t v\u00e0 cho ph\u00e9p d\u1ef1 b\u00e1o \u0111\u01b0\u1ee3c bi\u00ean \u0111\u1ed9 t\u00edn hi\u1ec7u tr\u00ean c\u00e1c m\u1ea1ch in t\u1ed1c \u0111\u1ed9 cao (high-speed PCB traces).<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >\u2705 V\u00ec sao 40G QSFP+ s\u1eed d\u1ee5ng XLPPI thay v\u00ec m\u1ed9t \u0111\u01b0\u1eddng truy\u1ec1n \u0111i\u1ec7n t\u1ed1c \u0111\u1ed9 cao duy nh\u1ea5t<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Thi\u1ebft k\u1ebf m\u1ed9t giao di\u1ec7n \u0111i\u1ec7n 40 Gb\/s tr\u00ean m\u1ed9t \u0111\u01b0\u1eddng truy\u1ec1n duy nh\u1ea5t s\u1ebd \u0111\u00f2i h\u1ecfi b\u1ed9 SERDES ph\u1ee9c t\u1ea1p h\u01a1n nhi\u1ec1u, gi\u1edbi h\u1ea1n dung sai nhi\u1ec5u (jitter) kh\u1eaft khe h\u01a1n v\u00e0 v\u1eadt li\u1ec7u \u0111\u1eaft ti\u1ec1n h\u01a1n. XLPPI gi\u1ea3i quy\u1ebft nh\u1eefng th\u00e1ch th\u1ee9c n\u00e0y b\u1eb1ng c\u00e1ch:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>Gi\u1ea3m t\u1ed1c \u0111\u1ed9 t\u00edn hi\u1ec7u tr\u00ean m\u1ed7i \u0111\u01b0\u1eddng d\u1eabn<\/strong> xu\u1ed1ng kho\u1ea3ng 10 Gb\/s, \u0111\u01a1n gi\u1ea3n h\u00f3a vi\u1ec7c \u0111i d\u00e2y m\u1ea1ch in (PCB)<\/p><\/li><li><p><strong>Gi\u1ea3m ti\u00eau th\u1ee5 \u0111i\u1ec7n n\u0103ng<\/strong> so v\u1edbi c\u00e1c PHY n\u1ed1i ti\u1ebfp t\u1ed1c \u0111\u1ed9 cao<\/p><\/li><li><p><strong>Cho ph\u00e9p hi\u1ec7u n\u0103ng d\u1ef1 \u0111o\u00e1n \u0111\u01b0\u1ee3c tr\u00ean k\u1ebft n\u1ed1i t\u1eeb thi\u1ebft b\u1ecb ch\u1ee7 \u0111\u1ebfn m\u00f4-\u0111un<\/strong><\/p><\/li><li><p><strong>Cho ph\u00e9p t\u00e1i s\u1eed d\u1ee5ng ph\u1ea7n c\u1ee9ng<\/strong>, v\u00ec nhi\u1ec1u h\u1ec7 th\u1ed1ng t\u00e1i s\u1eed d\u1ee5ng SERDES lo\u1ea1i 10G<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110i\u1ec1u n\u00e0y khi\u1ebfn XLPPI tr\u1edf th\u00e0nh l\u1ef1a ch\u1ecdn l\u00fd t\u01b0\u1edfng cho c\u00e1c m\u00f4-\u0111un nh\u1ecf g\u1ecdn, c\u1eafm n\u00f3ng nh\u01b0 <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/store-26153-40g-qsfp.htm\">QSFP+<\/a>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >\u2705 L\u1ee3i \u00edch c\u1ee7a XLPPI \u0111\u1ed1i v\u1edbi k\u1ef9 s\u01b0 thi\u1ebft k\u1ebf h\u1ec7 th\u1ed1ng v\u00e0 nh\u00e0 t\u00edch h\u1ee3p<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" >\u0110\u1ed9 tin c\u1eady v\u1ec1 m\u1eb7t \u0111i\u1ec7n<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">B\u1ed1n \u0111\u01b0\u1eddng d\u1eabn 10G d\u1ec5 duy tr\u00ec h\u01a1n nhi\u1ec1u v\u1edbi bi\u00ean m\u1eaft (eye-margin) ch\u1ea5p nh\u1eadn \u0111\u01b0\u1ee3c v\u00e0 ki\u1ec3m so\u00e1t nhi\u1ec5u xuy\u00ean k\u00eanh (crosstalk) so v\u1edbi m\u1ed9t \u0111\u01b0\u1eddng d\u1eabn t\u1ed1c \u0111\u1ed9 c\u1ef1c cao duy nh\u1ea5t.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >Kh\u1ea3 n\u0103ng t\u01b0\u01a1ng t\u00e1c gi\u1eefa c\u00e1c m\u00f4-\u0111un<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00ec XLPPI l\u00e0 chu\u1ea9n h\u00f3a, c\u00e1c m\u00f4-\u0111un nh\u01b0 LINK-PP LQ-SW40-SR4C c\u1eafm li\u1ec1n m\u1ea1ch v\u00e0o c\u00e1c n\u1ec1n t\u1ea3ng chuy\u1ec3n m\u1ea1ch ch\u00ednh t\u1eeb Cisco, Arista, Juniper v\u00e0 c\u00e1c h\u00e3ng kh\u00e1c.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >Gi\u1ea3m chi ph\u00ed thi\u1ebft k\u1ebf<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c nh\u00e0 cung c\u1ea5p ASIC c\u00f3 th\u1ec3 tri\u1ec3n khai SERDES lo\u1ea1i 10G \u0111\u00e3 \u0111\u01b0\u1ee3c hi\u1ec3u r\u00f5, gi\u1ea3m r\u1ee7i ro ph\u00e1t tri\u1ec3n.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >Kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">XLPPI ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c \u1ee9ng d\u1ee5ng chia nh\u00e1nh (breakout) (v\u00ed d\u1ee5: chia 40G th\u00e0nh 4\u00d710G), th\u01b0\u1eddng \u0111\u01b0\u1ee3c d\u00f9ng trong c\u00e1c b\u1ed9 chuy\u1ec3n m\u1ea1ch ToR.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >\u2705 So s\u00e1nh XLPPI v\u1edbi c\u00e1c giao di\u1ec7n kh\u00e1c<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" >S\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa XLAUI v\u00e0 CPPI<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">B\u1ea1n c\u00f3 th\u1ec3 t\u1ef1 h\u1ecfi XLPPI so s\u00e1nh th\u1ebf n\u00e0o v\u1edbi c\u00e1c giao di\u1ec7n \u0111i\u1ec7n kh\u00e1c trong m\u1ea1ng t\u1ed1c \u0111\u1ed9 cao. XLPPI, XLAUI v\u00e0 CPPI \u0111\u1ec1u \u0111\u1ea3m nhi\u1ec7m vai tr\u00f2 ri\u00eang trong c\u00e1c h\u1ec7 th\u1ed1ng Ethernet. B\u1ea1n s\u1ebd th\u1ea5y r\u00f5 h\u01a1n s\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa ch\u00fang khi xem x\u00e9t ki\u1ebfn tr\u00fac v\u00e0 \u1ee9ng d\u1ee5ng c\u1ee5 th\u1ec3 c\u1ee7a t\u1eebng giao di\u1ec7n.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>XLPPI<\/strong> ho\u1ea1t \u0111\u1ed9ng nh\u01b0 giao di\u1ec7n chip\u2013m\u00f4-\u0111un. B\u1ea1n ch\u1ee7 y\u1ebfu s\u1eed d\u1ee5ng n\u00f3 trong c\u00e1c m\u00f4-\u0111un 40G QSFP+. N\u00f3 k\u1ebft n\u1ed1i tr\u1ef1c ti\u1ebfp b\u1ed9 chuy\u1ec3n m\u1ea1ch ho\u1eb7c ASIC c\u1ee7a b\u1ea1n v\u1edbi b\u1ed9 thu ph\u00e1t b\u1eb1ng b\u1ed1n \u0111\u01b0\u1eddng d\u1eabn song song.<\/p><\/li><li><p><strong>XLAUI<\/strong> ho\u1ea1t \u0111\u1ed9ng nh\u01b0 giao di\u1ec7n chip\u2013chip. B\u1ea1n t\u00ecm th\u1ea5y n\u00f3 b\u00ean trong c\u00e1c b\u1ed9 chuy\u1ec3n m\u1ea1ch ho\u1eb7c b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn, d\u00f9ng \u0111\u1ec3 li\u00ean k\u1ebft c\u00e1c chip kh\u00e1c nhau v\u1edbi nhau. N\u00f3 c\u0169ng s\u1eed d\u1ee5ng b\u1ed1n \u0111\u01b0\u1eddng d\u1eabn, nh\u01b0ng b\u1ea1n kh\u00f4ng d\u00f9ng n\u00f3 cho k\u1ebft n\u1ed1i m\u00f4-\u0111un tr\u1ef1c ti\u1ebfp.<\/p><\/li><li><p><strong>CPPI<\/strong> \u0111\u00f3ng vai tr\u00f2 l\u00e0 giao di\u1ec7n chip\u2013m\u00f4-\u0111un cho Ethernet 100G. B\u1ea1n s\u1eed d\u1ee5ng n\u00f3 trong <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/store-27045-100g-qsfp28-sfp-dd.htm\">c\u00e1c m\u00f4-\u0111un 100G<\/a>, v\u00e0 n\u00f3 h\u1ed7 tr\u1ee3 m\u01b0\u1eddi \u0111\u01b0\u1eddng d\u1eabn song song thay v\u00ec b\u1ed1n.<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">B\u1ea1n c\u00f3 th\u1ec3 so s\u00e1nh c\u00e1c giao di\u1ec7n n\u00e0y trong b\u1ea3ng d\u01b0\u1edbi \u0111\u00e2y:<\/p>\n\n\n\n<figure class=\"wp-block-table\">\n<table class=\"has-fixed-layout\">\n<colgroup><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><\/colgroup><tbody><tr><th colspan=\"1\" rowspan=\"1\"><p>Giao di\u1ec7n<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>S\u1ed1 l\u01b0\u1ee3ng \u0111\u01b0\u1eddng d\u1eabn<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>Tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng ch\u00ednh<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>Lo\u1ea1i k\u1ebft n\u1ed1i<\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>XLPPI<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>4<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p><a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/store-26153-40g-qsfp.htm\">C\u00e1p AOC v\u00e0 DAC<\/a><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Chip\u2013m\u00f4-\u0111un<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>XLAUI<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>4<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Li\u00ean k\u1ebft chip n\u1ed9i b\u1ed9<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Chip\u2013chip<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>CPPI<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>10<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p><a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/store-27045-100g-qsfp28-sfp-dd.htm\">c\u00e1c m\u00f4-\u0111un 100G<\/a><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Chip\u2013m\u00f4-\u0111un<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>L\u01b0u \u00fd: XLPPI v\u00e0 CPPI \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf cho k\u1ebft n\u1ed1i chip\u2013m\u00f4-\u0111un, trong khi XLAUI d\u00e0nh cho li\u00ean k\u1ebft chip\u2013chip b\u00ean trong thi\u1ebft b\u1ecb m\u1ea1ng.<\/p><\/blockquote>\n\n\n\n<h2 class=\"wp-block-heading\" >\u2705 C\u00e1c \u1ee9ng d\u1ee5ng \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3 b\u1edfi c\u00e1c m\u00f4-\u0111un QSFP+ s\u1eed d\u1ee5ng XLPPI<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Ki\u1ebfn tr\u00fac spine\/leaf y\u00eau c\u1ea7u t\u1ed5ng h\u1ee3p 40G<\/p><\/li><li><p>C\u00e1c b\u1ed9 chuy\u1ec3n m\u1ea1ch TOR k\u1ebft n\u1ed1i v\u1edbi c\u1ee5m \u1ea3o h\u00f3a<\/p><\/li><li><p>C\u00e1c li\u00ean k\u1ebft x\u01b0\u01a1ng s\u1ed1ng (backbone) trong khu\u00f4n vi\u00ean s\u1eed d\u1ee5ng c\u00e1p quang \u0111a mode<\/p><\/li><li><p>C\u00e1p chia nh\u00e1nh (breakout) 40G\u2013th\u00e0nh\u20134\u00d710G \u0111\u1ec3 t\u00edch h\u1ee3p thi\u1ebft b\u1ecb c\u0169<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">The <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/products\/491483.htm\">LINK-PP LQ-SW40-SR4C<br><\/a> \u0111\u1eb7c bi\u1ec7t ph\u00f9 h\u1ee3p cho <strong>c\u00e1c tri\u1ec3n khai 40G SR ng\u1eafn kho\u1ea3ng c\u00e1ch<\/strong> c\u1ea7n \u0111\u1ea7u n\u1ed1i LC nh\u01b0ng v\u1eabn ph\u1ee5 thu\u1ed9c v\u00e0o t\u00edn hi\u1ec7u \u0111i\u1ec7n chu\u1ea9n 4\u00d710G.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >\u2705 K\u1ebft lu\u1eadn<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The <strong>Giao di\u1ec7n \u0111i\u1ec7n XLPPI<\/strong> l\u00e0 c\u00f4ng ngh\u1ec7 n\u1ec1n t\u1ea3ng cho <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/store-26153-40g-qsfp.htm\">v\u1edbi 4\u00d710G \u0111\u01b0\u1eddng d\u1eabn, m\u1ed7i \u0111\u01b0\u1eddng d\u1eabn c\u00f3 ri\u00eang m\u1ed9t<\/a>. B\u1eb1ng c\u00e1ch chia 40 Gb\/s th\u00e0nh b\u1ed1n \u0111\u01b0\u1eddng d\u1eabn \u0111i\u1ec7n 10G d\u1ec5 qu\u1ea3n l\u00fd, XLPPI cung c\u1ea5p k\u1ebft n\u1ed1i b\u1ec1n b\u1ec9, t\u01b0\u01a1ng th\u00edch v\u00e0 tu\u00e2n th\u1ee7 chu\u1ea9n gi\u1eefa ASIC ch\u1ee7 v\u00e0 quang h\u1ecdc c\u1eafm n\u00f3ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Trong c\u00e1c m\u00f4-\u0111un nh\u01b0 <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/products\/491483.htm\"><strong>LINK-PP LQ-SW40-SR4C<br><\/strong><\/a>, XLPPI cho ph\u00e9p chuy\u1ec3n \u0111\u1ed5i hi\u1ec7u qu\u1ea3 t\u1eeb t\u00edn hi\u1ec7u \u0111i\u1ec7n sang quang cho Ethernet 40G d\u1ef1a tr\u00ean SWDM, khi\u1ebfn giao di\u1ec7n n\u00e0y tr\u1edf n\u00ean thi\u1ebft y\u1ebfu cho c\u00e1c m\u1ea1ng trung t\u00e2m d\u1eef li\u1ec7u v\u00e0 doanh nghi\u1ec7p hi\u1ec7n \u0111\u1ea1i nh\u1eb1m \u0111\u1ea1t m\u1eadt \u0111\u1ed9 cao, ti\u00eau th\u1ee5 \u0111i\u1ec7n th\u1ea5p v\u00e0 hi\u1ec7u n\u0103ng \u0111\u00e1ng tin c\u1eady.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >\u2705 C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p (FAQ)<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" >C1. XLPPI l\u00e0 vi\u1ebft t\u1eaft c\u1ee7a g\u00ec?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">XLPPI ngh\u0129a l\u00e0 \u201cGiao di\u1ec7n V\u1eadt l\u00fd Song song 40 Gigabit.\u201d B\u1ea1n d\u00f9ng n\u00f3 \u0111\u1ec3 k\u1ebft n\u1ed1i b\u1ed9 chuy\u1ec3n m\u1ea1ch ho\u1eb7c ASIC m\u1ea1ng c\u1ee7a m\u00ecnh v\u1edbi m\u00f4-\u0111un QSFP+. Giao di\u1ec7n n\u00e0y s\u1eed d\u1ee5ng b\u1ed1n \u0111\u01b0\u1eddng d\u1eabn \u0111\u1ec3 truy\u1ec1n d\u1eef li\u1ec7u t\u1ed1c \u0111\u1ed9 cao.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >C2. \u0110i\u1ec1u g\u00ec khi\u1ebfn XLPPI quan tr\u1ecdng \u0111\u1ed1i v\u1edbi c\u00e1c m\u00f4-\u0111un 40G QSFP+?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">B\u1ea1n d\u1ef1a v\u00e0o XLPPI \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o m\u00f4-\u0111un v\u00e0 thi\u1ebft b\u1ecb ch\u1ee7 ho\u1ea1t \u0111\u1ed9ng c\u00f9ng nhau. Ti\u00eau chu\u1ea9n n\u00e0y h\u1ed7 tr\u1ee3 truy\u1ec1n d\u1eef li\u1ec7u t\u1ed1c \u0111\u1ed9 cao, n\u00e2ng c\u1ea5p d\u1ec5 d\u00e0ng v\u00e0 thi\u1ebft k\u1ebf m\u1ea1ng linh ho\u1ea1t. B\u1ea1n \u0111\u1ea1t \u0111\u01b0\u1ee3c hi\u1ec7u n\u0103ng \u0111\u00e1ng tin c\u1eady trong m\u00f4i tr\u01b0\u1eddng d\u00e0y \u0111\u1eb7c.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >C3. C\u1ea5u tr\u00fac \u0111\u01b0\u1eddng d\u1eabn trong XLPPI l\u00e0 g\u00ec?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">B\u1ea1n th\u1ea5y b\u1ed1n \u0111\u01b0\u1eddng d\u1eabn song song trong XLPPI. M\u1ed7i \u0111\u01b0\u1eddng d\u1eabn mang kho\u1ea3ng 10,3125 gigabit m\u1ed7i gi\u00e2y. C\u1ea5u tr\u00fac n\u00e0y cho ph\u00e9p \u0111\u1ea1t t\u1ed1c \u0111\u1ed9 t\u1ed5ng c\u1ed9ng 40 gigabit m\u1ed7i gi\u00e2y.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>M\u1eb9o: Hi\u1ec3u r\u00f5 c\u1ea5u tr\u00fac \u0111\u01b0\u1eddng d\u1eabn gi\u00fap b\u1ea1n ch\u1ea9n \u0111o\u00e1n c\u00e1c s\u1ef1 c\u1ed1 t\u00edn hi\u1ec7u.<\/p><\/blockquote>\n\n\n\n<h3 class=\"wp-block-heading\" >C4. B\u1ea1n n\u00ean ki\u1ec3m tra \u0111i\u1ec1u g\u00ec \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o t\u00ednh t\u01b0\u01a1ng th\u00edch v\u1edbi XLPPI?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">B\u1ea1n n\u00ean x\u00e1c nh\u1eadn b\u1ed9 chuy\u1ec3n m\u1ea1ch, m\u00e1y ch\u1ee7 ho\u1eb7c b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn c\u1ee7a m\u00ecnh h\u1ed7 tr\u1ee3 XLPPI. H\u00e3y t\u00ecm c\u00e1c m\u00f4-\u0111un li\u1ec7t k\u00ea XLPPI trong th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt. B\u01b0\u1edbc n\u00e0y gi\u00fap b\u1ea1n tr\u00e1nh c\u00e1c v\u1ea5n \u0111\u1ec1 k\u1ebft n\u1ed1i.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >C5. S\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa XLPPI v\u00e0 CPPI l\u00e0 g\u00ec?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">B\u1ea1n d\u00f9ng XLPPI cho c\u00e1c m\u00f4-\u0111un 40G v\u1edbi b\u1ed1n \u0111\u01b0\u1eddng d\u1eabn. CPPI ho\u1ea1t \u0111\u1ed9ng v\u1edbi c\u00e1c m\u00f4-\u0111un 100G v\u00e0 s\u1eed d\u1ee5ng m\u01b0\u1eddi \u0111\u01b0\u1eddng d\u1eabn. C\u1ea3 hai \u0111\u1ec1u k\u1ebft n\u1ed1i chip v\u1edbi m\u00f4-\u0111un, nh\u01b0ng h\u1ed7 tr\u1ee3 c\u00e1c t\u1ed1c \u0111\u1ed9 kh\u00e1c nhau.<\/p>\n\n\n\n<figure class=\"wp-block-table\">\n<table class=\"has-fixed-layout\">\n<colgroup><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><\/colgroup><tbody><tr><th colspan=\"1\" rowspan=\"1\"><p>Giao di\u1ec7n<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>S\u1ed1 l\u01b0\u1ee3ng \u0111\u01b0\u1eddng d\u1eabn<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>T\u1ed1c \u0111\u1ed9<\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>XLPPI<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>4<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>40 Gbps<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>CPPI<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>10<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>100 Gbps<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" >\u2705 Xem th\u00eam<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><a target=\"_blank\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/products\/link-pp-10g-sfp-plus-transceiver-overview\/\">Kh\u00e1m ph\u00e1 b\u1ed9 thu ph\u00e1t LINK-PP 10G SFP+ LS-SM5510-80C<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a target=\"_blank\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/products\/link-pp-ls-dw2810-40i-dwdm-transceiver\/\">Ph\u00e2n t\u00edch chuy\u00ean s\u00e2u v\u1ec1 b\u1ed9 thu ph\u00e1t LINK-PP LS-DW2810-40I 10G<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a target=\"_blank\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/qsfp-dd-optical-transceivers-faster-connections\/\">B\u1ed9 thu ph\u00e1t quang QSFP-DD Cho Ph\u00e9p Thi\u1ebft L\u1eadp K\u1ebft N\u1ed1i T\u1ed1c \u0110\u1ed9 Cao<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a target=\"_blank\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/understanding-copper-sfp-modules-networking\/\">T\u1ed5ng quan v\u1ec1 c\u00e1c m\u00f4-\u0111un SFP \u0111\u1ed3ng cho m\u1ea1ng<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a target=\"_blank\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/products\/link-pp-10g-sfp-module-selection-guide\/\">L\u1ef1a ch\u1ecdn m\u00f4-\u0111un LINK-PP 10G SFP+ ho\u00e0n h\u1ea3o d\u00e0nh cho b\u1ea1n<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>Giao di\u1ec7n \u0111i\u1ec7n XLPPI k\u1ebft n\u1ed1i c\u00e1c m\u00f4-\u0111un 40G QSFP+ v\u1edbi ph\u1ea7n c\u1ee9ng m\u1ea1ng b\u1eb1ng b\u1ed1n k\u00eanh, \u0111\u1ea3m b\u1ea3o vi\u1ec7c truy\u1ec1n d\u1eef li\u1ec7u t\u1ed1c \u0111\u1ed9 cao, \u0111\u00e1ng tin c\u1eady v\u00e0 kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch.<\/p>","protected":false},"author":1,"featured_media":3826,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[18,21,26],"class_list":["post-3828","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-knowledge-center","tag-40g-qsfp-transceivers","tag-fiber-optic-cage-and-connector","tag-optics-transceivers"],"blocksy_meta":[],"acf":[],"_links":{"self":[{"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/3828","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=3828"}],"version-history":[{"count":3,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/3828\/revisions"}],"predecessor-version":[{"id":10874,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/3828\/revisions\/10874"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/media\/3826"}],"wp:attachment":[{"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/media?parent=3828"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/categories?post=3828"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/tags?post=3828"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}