{"id":3218,"date":"2026-03-03T00:00:00","date_gmt":"2026-03-03T00:00:00","guid":{"rendered":"https:\/\/lp.szlogic.cn\/knowledge-center\/sfp-in-networking-function-types-and-applications\/"},"modified":"2026-06-22T04:07:12","modified_gmt":"2026-06-22T04:07:12","slug":"sfp-in-networking-function-types-and-applications","status":"publish","type":"post","link":"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/sfp-in-networking-function-types-and-applications","title":{"rendered":"SFP trong m\u1ea1ng m\u00e1y t\u00ednh: Ch\u1ee9c n\u0103ng, c\u00e1c lo\u1ea1i v\u00e0 \u1ee9ng d\u1ee5ng"},"content":{"rendered":"<figure class=\"wp-block-image aligncenter size-large\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1200\" height=\"628\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/ddd60a8d71864961a0944e2f37abcee3.jpg\" alt=\"SFP in Networking\" class=\"wp-image-3204\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/ddd60a8d71864961a0944e2f37abcee3.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/ddd60a8d71864961a0944e2f37abcee3-300x157.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/ddd60a8d71864961a0944e2f37abcee3-1024x536.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/ddd60a8d71864961a0944e2f37abcee3-768x402.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/ddd60a8d71864961a0944e2f37abcee3-18x9.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Trong c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng m\u1ea1ng hi\u1ec7n \u0111\u1ea1i,<br>, <strong>SFP trong m\u1ea1ng m\u00e1y t\u00ednh<\/strong> \u0111\u1ec1 c\u1eadp \u0111\u1ebfn vi\u1ec7c s\u1eed d\u1ee5ng b\u1ed9 thu ph\u00e1t d\u1ea1ng nh\u1ecf c\u00f3 th\u1ec3 c\u1eafm th\u00e1o \u0111\u01b0\u1ee3c (Small Form-factor Pluggable) <a target=\"_self\" href=\"https:\/\/www.l-p.com\/store-25432-optics-transceivers-sfp-modules.htm\">(SFP)<\/a> \u0111\u1ec3 k\u00edch ho\u1ea1t kh\u1ea3 n\u0103ng k\u1ebft n\u1ed1i linh ho\u1ea1t v\u00e0 t\u1ed1c \u0111\u1ed9 cao gi\u1eefa c\u00e1c thi\u1ebft b\u1ecb chuy\u1ec3n m\u1ea1ch, \u0111\u1ecbnh tuy\u1ebfn v\u00e0 c\u00e1c thi\u1ebft b\u1ecb m\u1ea1ng kh\u00e1c. M\u1ed9t <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/476862.htm\">m\u00f4-\u0111un SFP <\/a>l\u00e0 th\u00e0nh ph\u1ea7n giao di\u1ec7n c\u00f3 th\u1ec3 thay n\u00f3ng (hot-swappable), cho ph\u00e9p thi\u1ebft b\u1ecb m\u1ea1ng h\u1ed7 tr\u1ee3 k\u1ebft n\u1ed1i s\u1ee3i quang ho\u1eb7c \u0111\u1ed3ng t\u00f9y thu\u1ed9c v\u00e0o b\u1ed9 thu ph\u00e1t \u0111\u01b0\u1ee3c l\u1eafp \u0111\u1eb7t.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Khi c\u00e1c m\u1ea1ng doanh nghi\u1ec7p, trung t\u00e2m d\u1eef li\u1ec7u v\u00e0 c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng c\u1ee7a nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 Internet (ISP) ti\u1ebfp t\u1ee5c m\u1edf r\u1ed9ng quy m\u00f4, c\u00e1c module SFP \u0111\u00e3 tr\u1edf th\u00e0nh y\u1ebfu t\u1ed1 n\u1ec1n t\u1ea3ng trong thi\u1ebft k\u1ebf m\u1ea1ng theo m\u00f4-\u0111un. Thay v\u00ec ph\u1ee5 thu\u1ed9c v\u00e0o c\u00e1c c\u1ed5ng Ethernet c\u1ed1 \u0111\u1ecbnh, k\u1ef9 s\u01b0 m\u1ea1ng c\u00f3 th\u1ec3 tri\u1ec3n khai c\u00e1c c\u1ed5ng SFP \u0111\u1ec3 \u0111i\u1ec1u ch\u1ec9nh lo\u1ea1i li\u00ean k\u1ebft, kho\u1ea3ng c\u00e1ch truy\u1ec1n d\u1eabn v\u00e0 b\u0103ng th\u00f4ng m\u00e0 kh\u00f4ng c\u1ea7n thay th\u1ebf to\u00e0n b\u1ed9 thi\u1ebft b\u1ecb. S\u1ef1 linh ho\u1ea1t n\u00e0y c\u1ea3i thi\u1ec7n \u0111\u00e1ng k\u1ec3 kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng, hi\u1ec7u qu\u1ea3 b\u1ea3o tr\u00ec v\u00e0 k\u1ebf ho\u1ea1ch n\u00e2ng c\u1ea5p d\u00e0i h\u1ea1n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00f4ng ngh\u1ec7 SFP \u0111\u01b0\u1ee3c chu\u1ea9n h\u00f3a theo c\u00e1c Th\u1ecfa thu\u1eadn Ngu\u1ed3n \u0110a d\u1ea1ng (Multi-Source Agreements \u2013 MSA), \u0111\u1ea3m b\u1ea3o kh\u1ea3 n\u0103ng t\u01b0\u01a1ng t\u00e1c gi\u1eefa c\u00e1c nh\u00e0 cung c\u1ea5p tu\u00e2n th\u1ee7 ti\u00eau chu\u1ea9n. H\u1ea7u h\u1ebft ph\u1ed5 bi\u1ebfn nh\u1ea5t l\u00e0 h\u1ed7 tr\u1ee3 Ethernet 1 Gigabit, <a target=\"_self\" href=\"https:\/\/www.l-p.com\/store-26155-1g-sfp.htm\">C\u00e1c m\u00f4-\u0111un SFP<\/a> \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i cho c\u00e1c k\u1ebft n\u1ed1i l\u00ean (uplink) b\u1eb1ng s\u1ee3i quang, truy\u1ec1n d\u1eabn quang kho\u1ea3ng c\u00e1ch xa v\u00e0 m\u1edf r\u1ed9ng m\u1ea1ng c\u00f3 c\u1ea5u tr\u00fac.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">H\u01b0\u1edbng d\u1eabn n\u00e0y gi\u1ea3i th\u00edch SFP ngh\u0129a l\u00e0 g\u00ec trong m\u1ea1ng m\u00e1y t\u00ednh, c\u00e1ch th\u1ee9c ho\u1ea1t \u0111\u1ed9ng, c\u00e1c ch\u1ee9c n\u0103ng c\u1ed1t l\u00f5i, c\u00e1c t\u00ecnh hu\u1ed1ng tri\u1ec3n khai, c\u00e1c lo\u1ea1i module v\u00e0 c\u00e1ch so s\u00e1nh n\u00f3 v\u1edbi c\u00e1c ti\u00eau chu\u1ea9n m\u1edbi h\u01a1n nh\u01b0 SFP+ v\u00e0 QSFP.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\u27a1\ufe0f SFP trong m\u1ea1ng m\u00e1y t\u00ednh l\u00e0 g\u00ec? (\u0110\u1ecbnh ngh\u0129a tr\u1ef1c ti\u1ebfp)<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Trong m\u1ea1ng m\u00e1y t\u00ednh, <strong>SFP<\/strong> l\u00e0 vi\u1ebft t\u1eaft c\u1ee7a <strong>Typical Medium<\/strong>, m\u1ed9t module nh\u1ecf g\u1ecdn, <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/488431.htm\">b\u1ed9 thu ph\u00e1t c\u00f3 th\u1ec3 thay th\u1ebf n\u00f3ng<\/a> \u0111\u01b0\u1ee3c d\u00f9ng \u0111\u1ec3 k\u1ebft n\u1ed1i c\u00e1c thi\u1ebft b\u1ecb m\u1ea1ng nh\u01b0 b\u1ed9 chuy\u1ec3n m\u1ea1ch v\u00e0 b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn v\u1edbi c\u00e1p s\u1ee3i quang ho\u1eb7c c\u00e1p \u0111\u1ed3ng. M\u1ed9t module SFP c\u1eafm v\u00e0o c\u1ed5ng SFP v\u00e0 cho ph\u00e9p k\u1ebft n\u1ed1i ph\u01b0\u01a1ng ti\u1ec7n linh ho\u1ea1t m\u00e0 kh\u00f4ng c\u1ea7n thay th\u1ebf ph\u1ea7n c\u1ee9ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t module SFP ho\u1ea1t \u0111\u1ed9ng nh\u01b0 m\u1ed9t giao di\u1ec7n chu\u1ea9n h\u00f3a, chuy\u1ec3n \u0111\u1ed5i t\u00edn hi\u1ec7u \u0111i\u1ec7n t\u1eeb thi\u1ebft b\u1ecb m\u1ea1ng th\u00e0nh t\u00edn hi\u1ec7u quang \u0111\u1ec3 truy\u1ec1n d\u1eabn qua s\u1ee3i quang \u2014 ho\u1eb7c truy\u1ec1n t\u00edn hi\u1ec7u \u0111i\u1ec7n tr\u00ean c\u00e1p Ethernet \u0111\u1ed3ng, t\u00f9y thu\u1ed9c v\u00e0o lo\u1ea1i module. V\u00ec c\u00f3 kh\u1ea3 n\u0103ng thay n\u00f3ng, module n\u00e0y c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c c\u1eafm v\u00e0o ho\u1eb7c r\u00fat ra kh\u1ecfi thi\u1ebft b\u1ecb \u0111ang ho\u1ea1t \u0111\u1ed9ng m\u00e0 kh\u00f4ng l\u00e0m gi\u00e1n \u0111o\u1ea1n to\u00e0n b\u1ed9 h\u1ec7 th\u1ed1ng, n\u00ean r\u1ea5t ph\u00f9 h\u1ee3p cho m\u00f4i tr\u01b0\u1eddng doanh nghi\u1ec7p v\u00e0 trung t\u00e2m d\u1eef li\u1ec7u.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00f4ng ngh\u1ec7 SFP \u0111\u01b0\u1ee3c \u0111\u1ecbnh ngh\u0129a theo c\u00e1c \u0111\u1eb7c t\u1ea3 Th\u1ecfa thu\u1eadn Ngu\u1ed3n \u0110a d\u1ea1ng (Multi-Source Agreement \u2013 MSA), \u0111\u1ea3m b\u1ea3o kh\u1ea3 n\u0103ng t\u01b0\u01a1ng t\u00e1c gi\u1eefa c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t tu\u00e2n th\u1ee7 ti\u00eau chu\u1ea9n. Ph\u1ea7n l\u1edbn <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/478340.htm\">standard SFP<\/a> m\u00f4-\u0111un hi\u1ec7n \u0111\u1ea1i h\u1ed7 tr\u1ee3 <strong>k\u1ebft n\u1ed1i Ethernet 1 Gigabit<\/strong>, m\u1eb7c d\u00f9 t\u1ed3n t\u1ea1i c\u00e1c bi\u1ebfn th\u1ec3 d\u00e0nh cho c\u00e1c kho\u1ea3ng c\u00e1ch truy\u1ec1n d\u1eabn, b\u01b0\u1edbc s\u00f3ng v\u00e0 lo\u1ea1i c\u00e1p kh\u00e1c nhau.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img decoding=\"async\" width=\"1200\" height=\"675\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/571cb86137284fe79c5c4ae0e572198c.jpg\" alt=\"What Is SFP in Networking\" class=\"wp-image-3206\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/571cb86137284fe79c5c4ae0e572198c.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/571cb86137284fe79c5c4ae0e572198c-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/571cb86137284fe79c5c4ae0e572198c-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/571cb86137284fe79c5c4ae0e572198c-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/571cb86137284fe79c5c4ae0e572198c-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c m\u00f4-\u0111un SFP \u0111\u01b0\u1ee3c tri\u1ec3n khai r\u1ed9ng r\u00e3i trong:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>B\u1ed9 chuy\u1ec3n m\u1ea1ch Ethernet<\/p><\/li><li><p>B\u1ed9 \u0111\u1ecbnh tuy\u1ebfn l\u00f5i v\u00e0 bi\u00ean<\/p><\/li><li><p><a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/what-is-nic-network-interface-card\/\">Th\u1ebb giao di\u1ec7n m\u1ea1ng<\/a> (NIC)<\/p><\/li><li><p>B\u1ed9 chuy\u1ec3n \u0111\u1ed5i ph\u01b0\u01a1ng ti\u1ec7n<\/p><\/li><li><p>C\u1ed5ng k\u1ebft n\u1ed1i l\u00ean b\u1eb1ng s\u1ee3i quang<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">B\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng c\u00e1c c\u1ed5ng SFP thay v\u00ec c\u00e1c giao di\u1ec7n c\u1ed1 \u0111\u1ecbnh, thi\u1ebft b\u1ecb m\u1ea1ng \u0111\u1ea1t \u0111\u01b0\u1ee3c t\u00ednh m\u00f4-\u0111un v\u00e0 kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng. Qu\u1ea3n tr\u1ecb vi\u00ean c\u00f3 th\u1ec3 ch\u1ecdn c\u00e1c module SFP s\u1ee3i quang (v\u00ed d\u1ee5: SX ho\u1eb7c LX) cho c\u00e1c li\u00ean k\u1ebft quang kho\u1ea3ng c\u00e1ch xa ho\u1eb7c c\u00e1c module <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/476770.htm\">SFP RJ45<\/a> \u0111\u1ed3ng cho c\u00e1c k\u1ebft n\u1ed1i Ethernet kho\u1ea3ng c\u00e1ch ng\u1eafn \u2014 t\u1ea5t c\u1ea3 \u0111\u1ec1u tr\u00ean c\u00f9ng m\u1ed9t n\u1ec1n t\u1ea3ng ph\u1ea7n c\u1ee9ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">T\u00f3m l\u1ea1i, SFP trong m\u1ea1ng m\u00e1y t\u00ednh \u0111\u1ec1 c\u1eadp \u0111\u1ebfn m\u1ed9t gi\u1ea3i ph\u00e1p b\u1ed9 thu ph\u00e1t chu\u1ea9n h\u00f3a v\u00e0 m\u00f4-\u0111un, cho ph\u00e9p k\u1ebft n\u1ed1i linh ho\u1ea1t v\u00e0 t\u1ed1c \u0111\u1ed9 cao tr\u00ean c\u00e1c c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng m\u1ea1ng s\u1ee3i quang v\u00e0 \u0111\u1ed3ng.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\u27a1\ufe0f Module SFP \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 l\u00e0m g\u00ec? (C\u00e1c ch\u1ee9c n\u0103ng m\u1ea1ng c\u1ed1t l\u00f5i)<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/488474.htm\">Module quang SFP<\/a> \u0111\u01b0\u1ee3c d\u00f9ng \u0111\u1ec3 k\u00edch ho\u1ea1t kh\u1ea3 n\u0103ng k\u1ebft n\u1ed1i m\u1ea1ng linh ho\u1ea1t v\u00e0 t\u1ed1c \u0111\u1ed9 cao b\u1eb1ng c\u00e1ch chuy\u1ec3n \u0111\u1ed5i t\u00edn hi\u1ec7u, m\u1edf r\u1ed9ng kho\u1ea3ng c\u00e1ch truy\u1ec1n d\u1eabn v\u00e0 cho ph\u00e9p c\u1ea5u h\u00ecnh c\u1ed5ng theo m\u00f4-\u0111un tr\u00ean c\u00e1c b\u1ed9 chuy\u1ec3n m\u1ea1ch v\u00e0 b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn. Thay v\u00ec s\u1eed d\u1ee5ng c\u00e1c giao di\u1ec7n Ethernet c\u1ed1 \u0111\u1ecbnh, c\u00e1c c\u1ed5ng SFP cho ph\u00e9p k\u1ef9 s\u01b0 m\u1ea1ng \u0111i\u1ec1u ch\u1ec9nh lo\u1ea1i ph\u01b0\u01a1ng ti\u1ec7n, b\u0103ng th\u00f4ng v\u00e0 kho\u1ea3ng c\u00e1ch li\u00ean k\u1ebft d\u1ef1a tr\u00ean nhu c\u1ea7u tri\u1ec3n khai.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img decoding=\"async\" width=\"1200\" height=\"675\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/8db8454795ef48798e4a72f9eddb1b48.jpg\" alt=\"What Is an SFP Module Used For? \" class=\"wp-image-3208\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/8db8454795ef48798e4a72f9eddb1b48.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/8db8454795ef48798e4a72f9eddb1b48-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/8db8454795ef48798e4a72f9eddb1b48-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/8db8454795ef48798e4a72f9eddb1b48-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/8db8454795ef48798e4a72f9eddb1b48-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">D\u01b0\u1edbi \u0111\u00e2y l\u00e0 c\u00e1c ch\u1ee9c n\u0103ng k\u1ef9 thu\u1eadt c\u1ed1t l\u00f5i c\u1ee7a m\u1ed9t module SFP trong m\u1ea1ng m\u00e1y t\u00ednh.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >Chuy\u1ec3n \u0111\u1ed5i ph\u01b0\u01a1ng ti\u1ec7n (t\u1eeb \u0111i\u1ec7n sang quang)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t trong nh\u1eefng ch\u1ee9c n\u0103ng ch\u00ednh c\u1ee7a module SFP l\u00e0 <strong>chuy\u1ec3n \u0111\u1ed5i ph\u01b0\u01a1ng ti\u1ec7n<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c thi\u1ebft b\u1ecb m\u1ea1ng nh\u01b0 b\u1ed9 chuy\u1ec3n m\u1ea1ch v\u00e0 b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn x\u1eed l\u00fd d\u1eef li\u1ec7u d\u01b0\u1edbi d\u1ea1ng t\u00edn hi\u1ec7u \u0111i\u1ec7n. Khi truy\u1ec1n d\u1eef li\u1ec7u qua c\u00e1p s\u1ee3i quang, c\u00e1c t\u00edn hi\u1ec7u \u0111i\u1ec7n n\u00e0y ph\u1ea3i \u0111\u01b0\u1ee3c chuy\u1ec3n \u0111\u1ed5i th\u00e0nh t\u00edn hi\u1ec7u quang. M\u1ed9t module SFP s\u1ee3i quang th\u1ef1c hi\u1ec7n vi\u1ec7c chuy\u1ec3n \u0111\u1ed5i n\u00e0y b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>A <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/laser-types-in-optical-transceiver-modules\/\">\u0111i-\u1ed1t laser<\/a> (b\u1ed9 ph\u00e1t)<\/p><\/li><li><p>A <a target=\"_self\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/pin-apd-photodiode-technologies-applications\/\">\u0111i-\u1ed1t quang<\/a> (b\u1ed9 thu)<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed1i v\u1edbi c\u00e1c module SFP \u0111\u1ed3ng (RJ45), t\u00edn hi\u1ec7u v\u1eabn \u1edf d\u1ea1ng \u0111i\u1ec7n nh\u01b0ng \u0111\u01b0\u1ee3c \u0111i\u1ec1u ch\u1ec9nh \u0111\u1ec3 ph\u00f9 h\u1ee3p v\u1edbi ti\u00eau chu\u1ea9n c\u00e1p Ethernet xo\u1eafn \u0111\u00f4i.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Kh\u1ea3 n\u0103ng chuy\u1ec3n \u0111\u1ed5i v\u00e0 \u0111i\u1ec1u ch\u1ec9nh lo\u1ea1i t\u00edn hi\u1ec7u n\u00e0y cho ph\u00e9p c\u00e1c thi\u1ebft b\u1ecb m\u1ea1ng h\u1ed7 tr\u1ee3 c\u1ea3 c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng s\u1ee3i quang v\u00e0 \u0111\u1ed3ng th\u00f4ng qua c\u00e1c module c\u00f3 th\u1ec3 ho\u00e1n \u0111\u1ed5i cho nhau.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >T\u00ednh linh ho\u1ea1t v\u00e0 m\u00f4-\u0111un h\u00f3a c\u1ed5ng m\u1ea1ng<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c module SFP cung c\u1ea5p <strong>m\u00f4-\u0111un h\u00f3a \u1edf c\u1ea5p \u0111\u1ed9 c\u1ed5ng<\/strong>, \u0111\u00e2y l\u00e0 m\u1ed9t l\u1ee3i th\u1ebf then ch\u1ed1t trong thi\u1ebft k\u1ebf m\u1ea1ng hi\u1ec7n \u0111\u1ea1i.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Thay v\u00ec t\u00edch h\u1ee3p s\u1eb5n c\u00e1c giao di\u1ec7n quang ho\u1eb7c \u0111\u1ed3ng c\u1ed1 \u0111\u1ecbnh v\u00e0o ph\u1ea7n c\u1ee9ng, c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t trang b\u1ecb c\u00e1c c\u1ed5ng SFP tr\u1ed1ng. Qu\u1ea3n tr\u1ecb vi\u00ean m\u1ea1ng sau \u0111\u00f3 c\u00f3 th\u1ec3 l\u1ef1a ch\u1ecdn lo\u1ea1i module ph\u00f9 h\u1ee3p d\u1ef1a tr\u00ean:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Lo\u1ea1i s\u1ee3i quang (\u0111\u01a1n ch\u1ebf \u0111\u1ed9 ho\u1eb7c \u0111a ch\u1ebf \u0111\u1ed9)<\/p><\/li><li><p>Lo\u1ea1i c\u00e1p (Cat5e, Cat6)<\/p><\/li><li><p>Kho\u1ea3ng c\u00e1ch truy\u1ec1n t\u1ea3i<\/p><\/li><li><p>Y\u00eau c\u1ea7u b\u01b0\u1edbc s\u00f3ng<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">RJ45 Copper SFP <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/the-hot-pluggable-nature-of-optical-modules\/\"><strong>Cat5e\/Cat6 Ethernet<\/strong><\/a>, ch\u00fang c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c thay th\u1ebf ho\u1eb7c n\u00e2ng c\u1ea5p m\u00e0 kh\u00f4ng c\u1ea7n t\u1eaft ngu\u1ed3n to\u00e0n b\u1ed9 thi\u1ebft b\u1ecb. \u0110i\u1ec1u n\u00e0y gi\u00fap gi\u1ea3m th\u1eddi gian ng\u1eebng ho\u1ea1t \u0111\u1ed9ng v\u00e0 \u0111\u01a1n gi\u1ea3n h\u00f3a c\u00f4ng t\u00e1c b\u1ea3o tr\u00ec.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">T\u00ednh m\u00f4-\u0111un c\u0169ng k\u00e9o d\u00e0i v\u00f2ng \u0111\u1eddi thi\u1ebft b\u1ecb m\u1ea1ng, b\u1edfi v\u00ec c\u00e1c c\u1ed5ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c n\u00e2ng c\u1ea5p b\u1eb1ng c\u00e1ch thay th\u1ebf module thay v\u00ec thay to\u00e0n b\u1ed9 b\u1ed9 chuy\u1ec3n m\u1ea1ch.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >M\u1edf r\u1ed9ng kho\u1ea3ng c\u00e1ch tr\u00ean c\u00e1c li\u00ean k\u1ebft s\u1ee3i quang<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c module SFP \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i \u0111\u1ec3 m\u1edf r\u1ed9ng kh\u1ea3 n\u0103ng k\u1ebft n\u1ed1i m\u1ea1ng tr\u00ean c\u00e1c kho\u1ea3ng c\u00e1ch d\u00e0i h\u01a1n so v\u1edbi Ethernet \u0111\u1ed3ng th\u00f4ng th\u01b0\u1eddng cho ph\u00e9p.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c kh\u1ea3 n\u0103ng kho\u1ea3ng c\u00e1ch \u0111i\u1ec3n h\u00ecnh bao g\u1ed3m:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>300\u2013550 m\u00e9t (s\u1ee3i quang \u0111a mode, SX)<\/p><\/li><li><p>10 km (s\u1ee3i quang \u0111\u01a1n mode, LX)<\/p><\/li><li><p>40 km, 80 km ho\u1eb7c h\u01a1n (c\u00e1c phi\u00ean b\u1ea3n kho\u1ea3ng c\u00e1ch xa)<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">B\u1eb1ng c\u00e1ch l\u1ef1a ch\u1ecdn b\u01b0\u1edbc s\u00f3ng quang v\u00e0 lo\u1ea1i s\u1ee3i quang ph\u00f9 h\u1ee3p, c\u00e1c module SFP cho ph\u00e9p:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>K\u1ebft n\u1ed1i gi\u1eefa c\u00e1c t\u00f2a nh\u00e0<\/p><\/li><li><p>Li\u00ean k\u1ebft x\u01b0\u01a1ng s\u1ed1ng trong khu\u00f4n vi\u00ean<\/p><\/li><li><p>C\u00e1c m\u1ea1ng t\u1eadp h\u1ee3p \u0111\u00f4 th\u1ecb v\u00e0 ISP<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110i\u1ec1u n\u00e0y khi\u1ebfn ch\u00fang tr\u1edf n\u00ean thi\u1ebft y\u1ebfu cho c\u00e1c tri\u1ec3n khai s\u1ee3i quang c\u00f3 c\u1ea5u tr\u00fac, n\u01a1i \u0111\u1ed9 nguy\u00ean v\u1eb9n t\u00edn hi\u1ec7u ph\u1ea3i \u0111\u01b0\u1ee3c duy tr\u00ec tr\u00ean c\u00e1c kho\u1ea3ng c\u00e1ch d\u00e0i.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >N\u00e2ng c\u1ea5p B\u0103ng th\u00f4ng C\u00f3 th\u1ec3 M\u1edf r\u1ed9ng<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t ch\u1ee9c n\u0103ng c\u1ed1t l\u00f5i kh\u00e1c c\u1ee7a c\u00e1c m\u00f4-\u0111un SFP l\u00e0 cho ph\u00e9p <strong>kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng b\u0103ng th\u00f4ng<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c m\u00f4-\u0111un thu ph\u00e1t SFP ti\u00eau chu\u1ea9n th\u01b0\u1eddng h\u1ed7 tr\u1ee3 Ethernet 1 Gigabit. Tuy nhi\u00ean, c\u00f9ng kh\u00e1i ni\u1ec7m m\u00f4-\u0111un n\u00e0y c\u00f2n \u0111\u01b0\u1ee3c m\u1edf r\u1ed9ng sang:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/491493.htm\">SFP+ (10G)<\/a><\/p><\/li><li><p>C\u00e1c \u0111\u1ecbnh d\u1ea1ng c\u00f3 m\u1eadt \u0111\u1ed9 cao h\u01a1n nh\u01b0 QSFP<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Ngay trong ch\u00ednh danh m\u1ee5c SFP, c\u00e1c t\u1ed5 ch\u1ee9c c\u00f3 th\u1ec3 m\u1edf r\u1ed9ng b\u0103ng th\u00f4ng b\u1eb1ng c\u00e1ch:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Th\u00eam nhi\u1ec1u k\u1ebft n\u1ed1i quang l\u00ean \u0111\u01b0\u1eddng (uplinks)<\/p><\/li><li><p>G\u1ed9p c\u00e1c c\u1ed5ng (aggregating ports)<\/p><\/li><li><p>Thay th\u1ebf c\u00e1c m\u00f4-\u0111un hi\u1ec7u su\u1ea5t th\u1ea5p h\u01a1n b\u1eb1ng c\u00e1c bi\u1ebfn th\u1ec3 cao c\u1ea5p h\u01a1n<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00ec c\u1ed5ng v\u1eadt l\u00fd v\u1eabn gi\u1eef nguy\u00ean, vi\u1ec7c n\u00e2ng c\u1ea5p m\u1ea1ng tr\u1edf n\u00ean ti\u1ebft ki\u1ec7m chi ph\u00ed v\u00e0 \u00edt g\u00e2y gi\u00e1n \u0111o\u1ea1n h\u01a1n so v\u1edbi vi\u1ec7c thay th\u1ebf to\u00e0n b\u1ed9 h\u1ec7 th\u1ed1ng ph\u1ea7n c\u1ee9ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">T\u00f3m l\u1ea1i, m\u1ed9t m\u00f4-\u0111un SFP \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 cung c\u1ea5p chuy\u1ec3n \u0111\u1ed5i t\u00edn hi\u1ec7u, t\u00ednh linh ho\u1ea1t v\u1ec1 c\u1ed5ng, truy\u1ec1n d\u1eabn kho\u1ea3ng c\u00e1ch xa v\u00e0 kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng b\u0103ng th\u00f4ng trong c\u00e1c c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng m\u1ea1ng hi\u1ec7n \u0111\u1ea1i. Nh\u1eefng ch\u1ee9c n\u0103ng c\u1ed1t l\u00f5i n\u00e0y khi\u1ebfn c\u00f4ng ngh\u1ec7 SFP tr\u1edf th\u00e0nh th\u00e0nh ph\u1ea7n n\u1ec1n t\u1ea3ng trong c\u00e1c m\u1ea1ng doanh nghi\u1ec7p, trung t\u00e2m d\u1eef li\u1ec7u v\u00e0 nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\u27a1\ufe0f M\u00f4-\u0111un SFP ho\u1ea1t \u0111\u1ed9ng nh\u01b0 th\u1ebf n\u00e0o trong m\u1ed9t thi\u1ebft b\u1ecb m\u1ea1ng?<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t m\u00f4-\u0111un SFP ho\u1ea1t \u0111\u1ed9ng b\u1eb1ng c\u00e1ch chuy\u1ec3n \u0111\u1ed5i t\u00edn hi\u1ec7u \u0111i\u1ec7n t\u1eeb thi\u1ebft b\u1ecb m\u1ea1ng th\u00e0nh t\u00edn hi\u1ec7u quang \u0111\u1ec3 truy\u1ec1n qua s\u1ee3i quang \u2014 v\u00e0 chuy\u1ec3n \u0111\u1ed5i ng\u01b0\u1ee3c l\u1ea1i t\u00edn hi\u1ec7u quang \u0111\u1ea7u v\u00e0o th\u00e0nh t\u00edn hi\u1ec7u \u0111i\u1ec7n \u0111\u1ec3 x\u1eed l\u00fd. Trong m\u1ed9t h\u00ecnh th\u1ee9c nh\u1ecf g\u1ecdn, c\u00f3 th\u1ec3 thay th\u1ebf n\u00f3ng (hot-swappable), m\u00f4-\u0111un t\u00edch h\u1ee3p c\u00e1c th\u00e0nh ph\u1ea7n ph\u00e1t laser, m\u1ea1ch d\u00f2 quang, \u0111i\u1ec7n t\u1eed \u0111i\u1ec1u khi\u1ec3n v\u00e0 b\u1ed9 nh\u1edb nh\u1eadn d\u1ea1ng k\u1ef9 thu\u1eadt s\u1ed1.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c hi\u1ec3u r\u00f5 c\u00e1ch SFP ho\u1ea1t \u0111\u1ed9ng \u1edf m\u1ee9c k\u1ef9 thu\u1eadt gi\u00fap k\u1ef9 s\u01b0 m\u1ea1ng thi\u1ebft k\u1ebf \u0111\u00fang c\u00e1c li\u00ean k\u1ebft quang, t\u00ednh to\u00e1n ng\u00e2n s\u00e1ch c\u00f4ng su\u1ea5t v\u00e0 kh\u1eafc ph\u1ee5c s\u1ef1 c\u1ed1 hi\u1ec7u su\u1ea5t.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1200\" height=\"675\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/162a2a93492c4761be05ac284bee881e.jpg\" alt=\"How Does SFP Work in a Network Device?\" class=\"wp-image-3209\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/162a2a93492c4761be05ac284bee881e.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/162a2a93492c4761be05ac284bee881e-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/162a2a93492c4761be05ac284bee881e-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/162a2a93492c4761be05ac284bee881e-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/162a2a93492c4761be05ac284bee881e-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" >Chuy\u1ec3n \u0111\u1ed5i \u0110i\u1ec7n\u2013Quang<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Khi m\u1ed9t b\u1ed9 chuy\u1ec3n m\u1ea1ch ho\u1eb7c b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn g\u1eedi d\u1eef li\u1ec7u qua c\u1ed5ng SFP, PHY c\u1ee7a thi\u1ebft b\u1ecb (<a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/what-is-phy-physical-layer-basics-explained\/\">t\u1ea7ng v\u1eadt l\u00fd<\/a>) truy\u1ec1n t\u00edn hi\u1ec7u vi sai \u0111i\u1ec7n \u0111\u1ebfn m\u00f4-\u0111un SFP.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">B\u00ean trong m\u00f4-\u0111un:<\/p>\n\n\n\n<ol class=\"wp-block-list\" >\n<li><p>T\u00edn hi\u1ec7u \u0111i\u1ec7n \u0111\u01b0\u1ee3c \u0111i\u1ec1u ch\u1ec9nh v\u00e0 khu\u1ebfch \u0111\u1ea1i.<\/p><\/li><li><p>M\u1ea1ch \u0111i\u1ec1u khi\u1ec3n \u0111i\u1ec1u ch\u1ebf \u0111i-\u1ed1t laser.<\/p><\/li><li><p>Laser chuy\u1ec3n \u0111\u1ed5i t\u00edn hi\u1ec7u \u0111i\u1ec7n \u0111\u00e3 \u0111i\u1ec1u ch\u1ebf th\u00e0nh c\u00e1c xung \u00e1nh s\u00e1ng.<\/p><\/li><li><p>T\u00edn hi\u1ec7u quang \u0111\u01b0\u1ee3c truy\u1ec1n qua giao di\u1ec7n s\u1ee3i quang (k\u1ebft n\u1ed1i LC).<\/p><\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">\u1ede \u0111\u1ea7u nh\u1eadn:<\/p>\n\n\n\n<ol class=\"wp-block-list\" >\n<li><p>\u00c1nh s\u00e1ng \u0111\u1ea7u v\u00e0o \u0111i v\u00e0o m\u00f4-\u0111un.<\/p><\/li><li><p>M\u1ed9t \u0111i-\u1ed1t quang (photodiode) chuy\u1ec3n \u0111\u1ed5i t\u00edn hi\u1ec7u quang tr\u1edf l\u1ea1i th\u00e0nh d\u00f2ng \u0111i\u1ec7n.<\/p><\/li><li><p>T\u00edn hi\u1ec7u \u0111\u01b0\u1ee3c khu\u1ebfch \u0111\u1ea1i v\u00e0 t\u00e1i t\u1ea1o d\u1ea1ng.<\/p><\/li><li><p>T\u00edn hi\u1ec7u \u0111i\u1ec7n \u0111\u00e3 l\u00e0m s\u1ea1ch \u0111\u01b0\u1ee3c g\u1eedi \u0111\u1ebfn thi\u1ebft b\u1ecb ch\u1ee7.<\/p><\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">Qu\u00e1 tr\u00ecnh chuy\u1ec3n \u0111\u1ed5i hai chi\u1ec1u n\u00e0y cho ph\u00e9p truy\u1ec1n th\u00f4ng quang t\u1ed1c \u0111\u1ed9 cao, \u0111\u1ed3ng th\u1eddi gi\u1eef cho ph\u1ea7n c\u1ee9ng chuy\u1ec3n m\u1ea1ch d\u1ef1a tr\u00ean \u0111i\u1ec7n.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >B\u1ed9 ph\u00e1t laser: VCSEL so v\u1edbi DFB<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Lo\u1ea1i laser \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong m\u00f4-\u0111un SFP ph\u1ee5 thu\u1ed9c v\u00e0o y\u00eau c\u1ea7u kho\u1ea3ng c\u00e1ch truy\u1ec1n v\u00e0 b\u01b0\u1edbc s\u00f3ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/overview-of-vcsel\/\"><strong>Laser VCSEL.<\/strong><\/a><strong> (Laser ph\u00e1t x\u1ea1 b\u1ec1 m\u1eb7t khoang d\u1ecdc)<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Th\u01b0\u1eddng \u0111\u01b0\u1ee3c d\u00f9ng trong c\u00e1c m\u00f4-\u0111un SFP s\u1ee3i \u0111a mode (v\u00ed d\u1ee5: SX 850 nm)<\/p><\/li><li><p>Chi ph\u00ed th\u1ea5p h\u01a1n<\/p><\/li><li><p>T\u1ed1i \u01b0u cho truy\u1ec1n d\u1eabn t\u1ea7m ng\u1eafn (l\u00ean t\u1edbi ~550 m\u00e9t)<\/p><\/li><li><p>Ph\u1ed5 bi\u1ebfn trong m\u00f4i tr\u01b0\u1eddng trung t\u00e2m d\u1eef li\u1ec7u<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/dfb-laser-definition\/\"><strong>DFB<\/strong><\/a><strong> (Laser ph\u1ea3n h\u1ed3i ph\u00e2n b\u1ed1 \u2013 Distributed Feedback Laser)<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>\u0110\u01b0\u1ee3c d\u00f9ng trong c\u00e1c m\u00f4-\u0111un s\u1ee3i \u0111\u01a1n mode (1310 nm, 1550 nm)<\/p><\/li><li><p>\u0110\u1ed9 r\u1ed9ng ph\u1ed5 h\u1eb9p<\/p><\/li><li><p>H\u1ed7 tr\u1ee3 truy\u1ec1n d\u1eabn kho\u1ea3ng c\u00e1ch xa (10 km \u0111\u1ebfn h\u01a1n 80 km)<\/p><\/li><li><p>\u0110\u1ed9 \u1ed5n \u0111\u1ecbnh quang h\u1ecdc cao h\u01a1n<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c l\u1ef1a ch\u1ecdn gi\u1eefa VCSEL v\u00e0 DFB \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn kho\u1ea3ng c\u00e1ch li\u00ean k\u1ebft, kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch v\u1edbi lo\u1ea1i s\u1ee3i quang v\u00e0 c\u00f4ng su\u1ea5t quang \u0111\u1ea7u ra.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >B\u1ed9 thu \u0111i-\u1ed1t quang (Photodiode Receiver)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u1ede ph\u00eda nh\u1eadn (Rx), c\u00e1c m\u00f4-\u0111un SFP s\u1eed d\u1ee5ng \u0111i-\u1ed1t quang \u0111\u1ec3 ph\u00e1t hi\u1ec7n t\u00edn hi\u1ec7u quang \u0111\u1ea7u v\u00e0o.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c lo\u1ea1i ph\u1ed5 bi\u1ebfn bao g\u1ed3m:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>\u0110i-\u1ed1t quang PIN (d\u00f9ng trong c\u00e1c m\u00f4-\u0111un t\u1ea7m ng\u1eafn \u0111\u1ebfn trung b\u00ecnh)<\/p><\/li><li><p>APD (\u0110i-\u1ed1t quang th\u00e1c l\u0169 \u2013 Avalanche Photodiodes) d\u00e0nh cho m\u00f4i tr\u01b0\u1eddng truy\u1ec1n xa h\u01a1n ho\u1eb7c t\u00edn hi\u1ec7u y\u1ebfu h\u01a1n<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110i-\u1ed1t quang chuy\u1ec3n \u0111\u1ed5i \u00e1nh s\u00e1ng th\u00e0nh d\u00f2ng \u0111i\u1ec7n t\u1ef7 l\u1ec7 thu\u1eadn v\u1edbi c\u01b0\u1eddng \u0111\u1ed9 quang. M\u1ed9t <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/transimpedance-amplifiers-tias-how-they-work-and-applications\/\">b\u1ed9 khu\u1ebfch \u0111\u1ea1i chuy\u1ec3n tr\u1edf kh\u00e1ng (transimpedance amplifier)<\/a> (TIA) sau \u0111\u00f3 chuy\u1ec3n \u0111\u1ed5i d\u00f2ng \u0111i\u1ec7n n\u00e0y th\u00e0nh t\u00edn hi\u1ec7u \u0111i\u1ec7n \u00e1p c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng \u0111\u01b0\u1ee3c cho thi\u1ebft b\u1ecb ch\u1ee7.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed9 nh\u1ea1y v\u00e0 ng\u01b0\u1ee1ng qu\u00e1 t\u1ea3i c\u1ee7a b\u1ed9 thu l\u00e0 c\u00e1c y\u1ebfu t\u1ed1 then ch\u1ed1t khi t\u00ednh to\u00e1n ng\u00e2n s\u00e1ch li\u00ean k\u1ebft quang.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >B\u1ed9 nh\u1edb nh\u1eadn d\u1ea1ng EEPROM v\u00e0 th\u00f4ng tin nh\u00e0 s\u1ea3n xu\u1ea5t<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed7i m\u00f4-\u0111un SFP \u0111\u1ec1u ch\u1ee9a m\u1ed9t b\u1ed9 nh\u1edb EEPROM t\u00edch h\u1ee3p tr\u00ean bo m\u1ea1ch (<a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/eeprom-electrically-erasable-programmable-read-only-memory\/\">B\u1ed9 nh\u1edb ch\u1ec9 \u0111\u1ecdc c\u00f3 th\u1ec3 l\u1eadp tr\u00ecnh v\u00e0 x\u00f3a b\u1eb1ng \u0111i\u1ec7n<\/a>).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">B\u1ed9 nh\u1edb n\u00e0y l\u01b0u tr\u1eef d\u1eef li\u1ec7u nh\u1eadn d\u1ea1ng chu\u1ea9n h\u00f3a, bao g\u1ed3m:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>T\u00ean nh\u00e0 s\u1ea3n xu\u1ea5t<\/p><\/li><li><p>M\u00e3 linh ki\u1ec7n<\/p><\/li><li><p>Nhi\u1ec1u module c\u00f2n h\u1ed7 tr\u1ee3 Gi\u00e1m s\u00e1t quang k\u1ef9 thu\u1eadt s\u1ed1 (<span class=\"math\">)<\/span> (DOM), cung c\u1ea5p d\u1eef li\u1ec7u th\u1eddi gian th\u1ef1c nh\u01b0:<\/p><\/li><li><p>B\u01b0\u1edbc s\u00f3ng \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3<\/p><\/li><li><p>Kho\u1ea3ng c\u00e1ch t\u1ed1i \u0111a<\/p><\/li><li><p>C\u00e1c ti\u00eau chu\u1ea9n tu\u00e2n th\u1ee7<\/p><\/li><li><p>Ng\u00e0y s\u1ea3n xu\u1ea5t<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Khi m\u00f4-\u0111un \u0111\u01b0\u1ee3c c\u1eafm v\u00e0o, thi\u1ebft b\u1ecb ch\u1ee7 \u0111\u1ecdc b\u1ed9 nh\u1edb EEPROM n\u00e0y th\u00f4ng qua giao di\u1ec7n I\u00b2C. \u0110i\u1ec1u n\u00e0y cho ph\u00e9p:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Nh\u1eadn d\u1ea1ng t\u1ef1 \u0111\u1ed9ng m\u00f4-\u0111un<\/p><\/li><li><p>X\u00e1c minh t\u00ednh t\u01b0\u01a1ng th\u00edch<\/p><\/li><li><p>Ki\u1ec3m tra nh\u00e0 s\u1ea3n xu\u1ea5t \u1edf c\u1ea5p firmware<\/p><\/li><li><p>Theo d\u00f5i danh m\u1ee5c thi\u1ebft b\u1ecb m\u1ea1ng<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c nh\u1eadn d\u1ea1ng d\u1ef1a tr\u00ean EEPROM \u0111\u01b0\u1ee3c quy \u0111\u1ecbnh b\u1edfi ti\u00eau chu\u1ea9n SFF-8472 v\u00e0 c\u00e1c \u0111\u1eb7c t\u1ea3 MSA li\u00ean quan.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >Gi\u00e1m s\u00e1t quang h\u1ecdc k\u1ef9 thu\u1eadt s\u1ed1 (DOM)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c m\u00f4-\u0111un SFP hi\u1ec7n \u0111\u1ea1i th\u01b0\u1eddng h\u1ed7 tr\u1ee3 <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/troubleshoot-optical-transceivers-digital-diagnostic-monitoring\/\"><strong>Gi\u00e1m s\u00e1t quang h\u1ecdc k\u1ef9 thu\u1eadt s\u1ed1<\/strong><\/a><strong> (DOM)<\/strong>, m\u1ed9t t\u00ednh n\u0103ng ch\u1ea9n \u0111o\u00e1n nh\u1eb1m n\u00e2ng cao kh\u1ea3 n\u0103ng quan s\u00e1t v\u1eadn h\u00e0nh.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">DOM cho ph\u00e9p gi\u00e1m s\u00e1t th\u1eddi gian th\u1ef1c c\u00e1c th\u00f4ng s\u1ed1 sau:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>C\u00f4ng su\u1ea5t quang ph\u00e1t (Tx power)<\/p><\/li><li><p>C\u00f4ng su\u1ea5t quang nh\u1eadn (Rx power)<\/p><\/li><li><p>D\u00f2ng ph\u00e2n c\u1ef1c laser<\/p><\/li><li><p>Nhi\u1ec7t \u0111\u1ed9 module<\/p><\/li><li><p>\u0110i\u1ec7n \u00e1p cung c\u1ea5p<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c th\u00f4ng s\u1ed1 n\u00e0y c\u00f3 th\u1ec3 truy c\u1eadp th\u00f4ng qua c\u00f9ng giao di\u1ec7n qu\u1ea3n l\u00fd I\u00b2C.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed1i v\u1edbi k\u1ef9 s\u01b0 m\u1ea1ng, DOM l\u00e0 y\u1ebfu t\u1ed1 thi\u1ebft y\u1ebfu \u0111\u1ec3:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Ch\u1ea9n \u0111o\u00e1n c\u00e1c v\u1ea5n \u0111\u1ec1 suy hao s\u1ee3i quang<\/p><\/li><li><p>Ph\u00e1t hi\u1ec7n laser s\u1eafp h\u1ecfng<\/p><\/li><li><p>Gi\u00e1m s\u00e1t \u0111i\u1ec1u ki\u1ec7n nhi\u1ec7t<\/p><\/li><li><p>Ng\u0103n ng\u1eeba s\u1ef1 c\u1ed1 m\u1ea5t li\u00ean k\u1ebft b\u1ea5t ng\u1edd<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">DOM c\u1ea3i thi\u1ec7n \u0111\u00e1ng k\u1ec3 kh\u1ea3 n\u0103ng b\u1ea3o tr\u00ec v\u00e0 ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c ti\u00eau chu\u1ea9n v\u1eadn h\u00e0nh c\u1ee7a doanh nghi\u1ec7p v\u00e0 nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >T\u00f3m t\u1eaft k\u1ef9 thu\u1eadt<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">V\u1ec1 b\u1ea3n ch\u1ea5t, m\u1ed9t m\u00f4-\u0111un SFP t\u00edch h\u1ee3p:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>C\u00e1c m\u1ea1ch \u0111i\u1ec1u ch\u1ec9nh t\u00edn hi\u1ec7u<\/p><\/li><li><p>H\u1ec7 th\u1ed1ng ph\u00e1t laser (VCSEL ho\u1eb7c DFB)<\/p><\/li><li><p>B\u1ed9 thu d\u1ef1a tr\u00ean \u0111i-\u1ed1t quang<\/p><\/li><li><p>B\u1ed9 nh\u1edb nh\u1eadn d\u1ea1ng EEPROM<\/p><\/li><li><p>Gi\u00e1m s\u00e1t ch\u1ea9n \u0111o\u00e1n k\u1ef9 thu\u1eadt s\u1ed1 (t\u00f9y ch\u1ecdn)<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">T\u1ea5t c\u1ea3 \u0111\u1ec1u n\u1eb1m trong m\u1ed9t m\u00f4-\u0111un thu ph\u00e1t nh\u1ecf g\u1ecdn, c\u00f3 th\u1ec3 thay th\u1ebf n\u00f3ng v\u00e0 giao ti\u1ebfp tr\u1ef1c ti\u1ebfp v\u1edbi ph\u1ea7n c\u1ee9ng m\u1ea1ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">S\u1ef1 t\u00edch h\u1ee3p nhi\u1ec1u l\u1edbp n\u00e0y gi\u1eefa quang h\u1ecdc, \u0111i\u1ec7n t\u1eed v\u00e0 tr\u00ed tu\u1ec7 qu\u1ea3n l\u00fd ch\u00ednh l\u00e0 y\u1ebfu t\u1ed1 khi\u1ebfn c\u00e1c m\u00f4-\u0111un SFP tr\u1edf th\u00e0nh kh\u1ed1i x\u00e2y d\u1ef1ng \u0111\u00e1ng tin c\u1eady v\u00e0 c\u00f3 th\u1ec3 m\u1edf r\u1ed9ng trong ki\u1ebfn tr\u00fac m\u1ea1ng s\u1ee3i quang hi\u1ec7n \u0111\u1ea1i.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\u27a1\ufe0f Tri\u1ec3n khai SFP trong c\u00e1c ki\u1ebfn tr\u00fac m\u1ea1ng hi\u1ec7n \u0111\u1ea1i<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/488475.htm\">SFP<br><\/a> \u0111\u01b0\u1ee3c tri\u1ec3n khai r\u1ed9ng r\u00e3i tr\u00ean c\u00e1c l\u1edbp kh\u00e1c nhau c\u1ee7a ki\u1ebfn tr\u00fac m\u1ea1ng, t\u1eeb c\u00e1c b\u1ed9 chuy\u1ec3n m\u1ea1ch truy c\u1eadp \u0111\u1ebfn c\u00e1c h\u1ec7 th\u1ed1ng x\u01b0\u01a1ng s\u1ed1ng l\u00f5i. Thi\u1ebft k\u1ebf m\u00f4-\u0111un c\u1ee7a ch\u00fang cho ph\u00e9p k\u1ef9 s\u01b0 m\u1ea1ng l\u1ef1a ch\u1ecdn c\u00e1c b\u1ed9 thu ph\u00e1t ph\u00f9 h\u1ee3p d\u1ef1a tr\u00ean kho\u1ea3ng c\u00e1ch truy\u1ec1n d\u1eabn, y\u00eau c\u1ea7u b\u0103ng th\u00f4ng v\u00e0 lo\u1ea1i c\u00e1p quang, khi\u1ebfn ch\u00fang th\u00edch h\u1ee3p cho nhi\u1ec1u m\u00f4i tr\u01b0\u1eddng kh\u00e1c nhau nh\u01b0 trung t\u00e2m d\u1eef li\u1ec7u, m\u1ea1ng LAN doanh nghi\u1ec7p, x\u01b0\u01a1ng s\u1ed1ng c\u1ee7a nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 Internet (ISP) v\u00e0 m\u1ea1ng c\u00e1p quang \u0111\u00f4 th\u1ecb.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Kh\u00f4ng gi\u1ed1ng nh\u01b0 ph\u1ea7n gi\u1ea3i th\u00edch ch\u1ee9c n\u0103ng v\u1ec1 vi\u1ec7c c\u00e1c m\u00f4-\u0111un SFP l\u00e0m g\u00ec, ph\u1ea7n n\u00e0y t\u1eadp trung v\u00e0o <strong>v\u1ecb tr\u00ed v\u00e0 c\u00e1ch th\u1ee9c ch\u00fang \u0111\u01b0\u1ee3c tri\u1ec3n khai trong c\u00e1c ph\u00e2n c\u1ea5p m\u1ea1ng c\u00f3 c\u1ea5u tr\u00fac<\/strong> \u2014 \u0111\u1eb7c bi\u1ec7t l\u00e0 tr\u00ean c\u00e1c l\u1edbp Truy c\u1eadp, T\u00edch h\u1ee3p v\u00e0 L\u00f5i.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1200\" height=\"675\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/405d8a3053134e56ae20f5b5a282ba55.jpg\" alt=\"SFP Deployment in Modern Network Architectures\" class=\"wp-image-3210\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/405d8a3053134e56ae20f5b5a282ba55.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/405d8a3053134e56ae20f5b5a282ba55-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/405d8a3053134e56ae20f5b5a282ba55-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/405d8a3053134e56ae20f5b5a282ba55-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/405d8a3053134e56ae20f5b5a282ba55-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" >Li\u00ean k\u1ebft n\u00e2ng cao (uplink) gi\u1eefa c\u00e1c n\u00fat Leaf-Spine trong trung t\u00e2m d\u1eef li\u1ec7u<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Trong c\u00e1c m\u00f4i tr\u01b0\u1eddng <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/what-is-a-data-center\/\">trung t\u00e2m d\u1eef li\u1ec7u<\/a> ki\u1ebfn tr\u00fac, \u0111\u1eb7c bi\u1ec7t l\u00e0 c\u00e1c b\u1ed1 tr\u00ed d\u1ea1ng leaf-spine, c\u00e1c m\u00f4-\u0111un SFP th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho c\u00e1c li\u00ean k\u1ebft n\u00e2ng cao b\u1eb1ng c\u00e1p quang m\u1eadt \u0111\u1ed9 cao.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>L\u1edbp tri\u1ec3n khai:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Leaf (l\u1edbp truy c\u1eadp b\u00ean trong t\u1ee7 rack)<\/p><\/li><li><p>Spine (l\u1edbp t\u00edch h\u1ee3p\/l\u00f5i b\u00ean trong m\u1ea1ng fabric c\u1ee7a trung t\u00e2m d\u1eef li\u1ec7u)<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng \u0111i\u1ec3n h\u00ecnh:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Li\u00ean k\u1ebft n\u00e2ng cao t\u1eeb m\u00e1y ch\u1ee7 \u0111\u1ebfn b\u1ed9 chuy\u1ec3n m\u1ea1ch leaf<\/p><\/li><li><p>Li\u00ean k\u1ebft c\u00e1p quang gi\u1eefa c\u00e1c b\u1ed9 chuy\u1ec3n m\u1ea1ch leaf v\u00e0 spine<\/p><\/li><li><p><a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/what-is-a-tor-top-of-rack-switch\/\">\u0110\u1ec9nh k\u1ec7<\/a> (ToR) k\u1ebft n\u1ed1i l\u00ean (uplinks) c\u1ee7a b\u1ed9 chuy\u1ec3n m\u1ea1ch<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c m\u00f4-\u0111un SFP c\u00e1p quang \u0111a mode t\u1ea7m ng\u1eafn (v\u00ed d\u1ee5: SX 850 nm) th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho c\u00e1c k\u1ebft n\u1ed1i n\u1ed9i b\u1ed9 trung t\u00e2m d\u1eef li\u1ec7u do:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Kho\u1ea3ng c\u00e1ch truy\u1ec1n d\u1eabn ng\u1eafn<\/p><\/li><li><p>Y\u00eau c\u1ea7u m\u1eadt \u0111\u1ed9 c\u1ed5ng cao<\/p><\/li><li><p>Hi\u1ec7u qu\u1ea3 chi ph\u00ed<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c li\u00ean k\u1ebft n\u00e2ng cao b\u1eb1ng c\u00e1p quang d\u1ef1a tr\u00ean SFP cung c\u1ea5p kh\u1ea3 n\u0103ng x\u1eed l\u00fd l\u01b0u l\u01b0\u1ee3ng ngang (east-west) m\u1edf r\u1ed9ng trong c\u00e1c m\u00f4i tr\u01b0\u1eddng \u0111i\u1ec7n to\u00e1n ph\u00e2n t\u00e1n.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >M\u1ea1ng l\u00f5i\u2013truy c\u1eadp doanh nghi\u1ec7p<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Trong c\u00e1c ki\u1ebfn tr\u00fac m\u1ea1ng LAN doanh nghi\u1ec7p, c\u00e1c m\u00f4-\u0111un SFP th\u01b0\u1eddng \u0111\u01b0\u1ee3c tri\u1ec3n khai \u0111\u1ec3 k\u1ebft n\u1ed1i c\u00e1c b\u1ed9 chuy\u1ec3n m\u1ea1ch truy c\u1eadp v\u1edbi c\u00e1c b\u1ed9 chuy\u1ec3n m\u1ea1ch ph\u00e2n ph\u1ed1i ho\u1eb7c l\u00f5i.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>L\u1edbp tri\u1ec3n khai:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>L\u1edbp truy c\u1eadp (b\u1ed9 chuy\u1ec3n m\u1ea1ch bi\u00ean)<\/p><\/li><li><p>L\u1edbp ph\u00e2n ph\u1ed1i\/t\u00edch h\u1ee3p<\/p><\/li><li><p>L\u1edbp l\u00f5i (chuy\u1ec3n m\u1ea1ch t\u1eadp trung)<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c t\u00ecnh hu\u1ed1ng ph\u1ed5 bi\u1ebfn:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>C\u00e1c li\u00ean k\u1ebft c\u00e1p quang x\u01b0\u01a1ng s\u1ed1ng gi\u1eefa c\u00e1c t\u1ea7ng nh\u00e0<\/p><\/li><li><p>Li\u00ean k\u1ebft n\u00e2ng cao t\u1eeb b\u1ed9 chuy\u1ec3n m\u1ea1ch truy c\u1eadp l\u00ean b\u1ed9 chuy\u1ec3n m\u1ea1ch l\u00f5i<\/p><\/li><li><p>C\u00e1c k\u1ebft n\u1ed1i c\u00e1p quang gi\u1eefa c\u00e1c t\u00f2a nh\u00e0<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/476763.htm\">C\u00e1c m\u00f4-\u0111un SFP c\u00e1p quang \u0111\u01a1n mode <\/a>(v\u00ed d\u1ee5: LX) th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho c\u00e1c li\u00ean k\u1ebft d\u00e0i h\u01a1n trong khu\u00f4n vi\u00ean, trong khi c\u00e1c bi\u1ebfn th\u1ec3 \u0111a mode x\u1eed l\u00fd c\u00e1c m\u00f4i tr\u01b0\u1eddng c\u00e1p c\u00f3 c\u1ea5u tr\u00fac ng\u1eafn h\u01a1n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c s\u1eed d\u1ee5ng c\u00e1c li\u00ean k\u1ebft n\u00e2ng cao b\u1eb1ng c\u00e1p quang SFP thay v\u00ec Ethernet \u0111\u1ed3ng cho c\u00e1c k\u1ebft n\u1ed1i x\u01b0\u01a1ng s\u1ed1ng c\u1ea3i thi\u1ec7n:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>\u0110\u1ed9 \u1ed5n \u0111\u1ecbnh t\u00edn hi\u1ec7u<\/p><\/li><li><p><a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/what-is-electromagnetic-interference\/\">EMI<\/a> kh\u1ea3 n\u0103ng ch\u1ed1ng nhi\u1ec5u<\/p><\/li><li><p>Kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng \u1edf kho\u1ea3ng c\u00e1ch xa<\/p><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" >M\u1ea1ng t\u00edch h\u1ee3p v\u00e0 x\u01b0\u01a1ng s\u1ed1ng c\u1ee7a nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 Internet (ISP)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/what-is-an-isp-internet-service-provider\/\">Nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 Internet<\/a> (ISP) ph\u1ee5 thu\u1ed9c v\u00e0o c\u00e1c m\u00f4-\u0111un SFP cho c\u00e1c l\u1edbp v\u1eadn chuy\u1ec3n t\u00edch h\u1ee3p v\u00e0 x\u01b0\u01a1ng s\u1ed1ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>L\u1edbp tri\u1ec3n khai:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>T\u00edch h\u1ee3p t\u1ea1i n\u00fat truy c\u1eadp<\/p><\/li><li><p>L\u1edbp t\u00edch h\u1ee3p \u0111\u00f4 th\u1ecb<\/p><\/li><li><p>\u0110\u1ecbnh tuy\u1ebfn l\u00f5i n\u1ec1n t\u1ea3ng c\u1ed1t l\u00f5i<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng \u0111i\u1ec3n h\u00ecnh:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>T\u1eadp h\u1ee3p n\u00fat truy c\u1eadp kh\u00e1ch h\u00e0ng<\/p><\/li><li><p>V\u1eadn chuy\u1ec3n quang gi\u1eefa c\u00e1c v\u1ecb tr\u00ed POP<\/p><\/li><li><p>C\u00e1c li\u00ean k\u1ebft n\u1ec1n t\u1ea3ng c\u00e1p quang li\u00ean th\u00e0nh ph\u1ed1<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c m\u00f4-\u0111un SFP ch\u1ebf \u0111\u1ed9 \u0111\u01a1n d\u00e0i (10 km, 40 km, 80 km) th\u01b0\u1eddng \u0111\u01b0\u1ee3c tri\u1ec3n khai trong c\u00e1c m\u00f4i tr\u01b0\u1eddng n\u00e0y. Trong m\u1ed9t s\u1ed1 tr\u01b0\u1eddng h\u1ee3p, c\u00e1c m\u00f4-\u0111un SFP CWDM ho\u1eb7c DWDM \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 gh\u00e9p k\u00eanh nhi\u1ec1u b\u01b0\u1edbc s\u00f3ng tr\u00ean m\u1ed9t c\u1eb7p s\u1ee3i quang duy nh\u1ea5t, n\u00e2ng cao hi\u1ec7u su\u1ea5t s\u1eed d\u1ee5ng s\u1ee3i quang.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">T\u1ea1i \u0111\u00e2y, c\u00e1c m\u00f4-\u0111un SFP \u0111\u00f3ng vai tr\u00f2 l\u00e0 giao di\u1ec7n quang chi ph\u00ed th\u1ea5p trong c\u00e1c n\u1ec1n t\u1ea3ng \u0111\u1ecbnh tuy\u1ebfn v\u00e0 chuy\u1ec3n m\u1ea1ch.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >C\u01a1 s\u1edf h\u1ea1 t\u1ea7ng c\u00e1p quang khu\u00f4n vi\u00ean v\u00e0 \u0111\u00f4 th\u1ecb<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c khu\u00f4n vi\u00ean quy m\u00f4 l\u1edbn v\u00e0 m\u1ea1ng \u0111\u00f4 th\u1ecb s\u1eed d\u1ee5ng c\u00e1c m\u00f4-\u0111un SFP cho vi\u1ec7c ph\u00e2n ph\u1ed1i c\u00e1p quang c\u00f3 c\u1ea5u tr\u00fac.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>L\u1edbp tri\u1ec3n khai:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>L\u1edbp t\u1eadp h\u1ee3p khu\u00f4n vi\u00ean<\/p><\/li><li><p>C\u00e1c v\u00f2ng truy c\u1eadp \u0111\u00f4 th\u1ecb<\/p><\/li><li><p>C\u00e1c n\u00fat v\u1eadn chuy\u1ec3n khu v\u1ef1c<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c \u1ee9ng d\u1ee5ng \u0111i\u1ec3n h\u00ecnh:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>\u0110\u01b0\u1eddng x\u01b0\u01a1ng s\u1ed1ng khu\u00f4n vi\u00ean \u0111\u1ea1i h\u1ecdc<\/p><\/li><li><p>M\u1ea1ng c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng ch\u00ednh ph\u1ee7<\/p><\/li><li><p>C\u00e1c khu c\u00f4ng nghi\u1ec7p<\/p><\/li><li><p>C\u00e1c v\u00f2ng truy c\u1eadp Metro Ethernet<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c k\u1ebft n\u1ed1i l\u00ean c\u00e1p quang gi\u1eefa c\u00e1c t\u00f2a nh\u00e0 c\u00e1ch xa nhau v\u1ec1 m\u1eb7t \u0111\u1ecba l\u00fd \u0111\u00f2i h\u1ecfi truy\u1ec1n d\u1eabn quang \u1ed5n \u0111\u1ecbnh \u1edf kho\u1ea3ng c\u00e1ch xa. C\u00e1c m\u00f4-\u0111un SFP h\u1ed7 tr\u1ee3:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>L\u1ef1a ch\u1ecdn b\u01b0\u1edbc s\u00f3ng linh ho\u1ea1t<\/p><\/li><li><p>M\u1edf r\u1ed9ng quy m\u00f4 m\u1ea1ng d\u1ec5 d\u00e0ng<\/p><\/li><li><p>Thay th\u1ebf t\u1ea1i hi\u1ec7n tr\u01b0\u1eddng thu\u1eadn ti\u1ec7n<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">T\u00ednh n\u0103ng c\u1eafm n\u00f3ng c\u1ee7a ch\u00fang c\u0169ng gi\u00fap \u0111\u01a1n gi\u1ea3n h\u00f3a b\u1ea3o tr\u00ec trong c\u00e1c m\u00f4i tr\u01b0\u1eddng c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng ph\u00e2n t\u00e1n.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >Tri\u1ec3n khai SFP theo l\u1edbp m\u1ea1ng (B\u1ea3ng tra c\u1ee9u nhanh)<\/h3>\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;\"\/><col style=\"min-width: 25px;\"\/><\/colgroup><tbody><tr><th colspan=\"1\" rowspan=\"1\"><p>M\u00f4i tr\u01b0\u1eddng m\u1ea1ng<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>V\u1ecb tr\u00ed l\u1edbp<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>Kho\u1ea3ng c\u00e1ch \u0111i\u1ec3n h\u00ecnh<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>Lo\u1ea1i SFP ph\u1ed5 bi\u1ebfn<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>M\u1ee5c \u0111\u00edch Ch\u00ednh<\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>Trung t\u00e2m d\u1eef li\u1ec7u<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Leaf\u2013Spine (Truy c\u1eadp\/T\u1eadp h\u1ee3p)<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>&lt; 500 m<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\u0110a ch\u1ebf \u0111\u1ed9 SX<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>K\u1ebft n\u1ed1i l\u00ean c\u00e1p quang m\u1eadt \u0111\u1ed9 cao<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>LAN doanh nghi\u1ec7p<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>T\u1eeb l\u1edbp truy c\u1eadp \u0111\u1ebfn l\u1edbp l\u00f5i<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>300 m \u2013 10 km<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>SX \/ LX<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>K\u1ebft n\u1ed1i \u0111\u01b0\u1eddng x\u01b0\u01a1ng s\u1ed1ng gi\u1eefa c\u00e1c t\u00f2a nh\u00e0<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>M\u1ea1ng ISP<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>T\u1eadp h\u1ee3p \/ L\u00f5i<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>10 \u2013 80 km<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>LX \/ SMF t\u1ea7m xa<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>T\u1eadp h\u1ee3p thu\u00ea bao v\u00e0 POP<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>M\u1ea1ng \u0111\u00f4 th\u1ecb<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>T\u1eadp h\u1ee3p<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>10 \u2013 40+ km<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>LX \/ CWDM<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>V\u1eadn chuy\u1ec3n c\u00e1p quang \u0111\u00f4 th\u1ecb<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>C\u01a1 s\u1edf h\u1ea1 t\u1ea7ng khu\u00f4n vi\u00ean<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Truy c\u1eadp \/ T\u1eadp h\u1ee3p<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>300 m \u2013 10 km<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>SX \/ LX<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Li\u00ean k\u1ebft gi\u1eefa c\u00e1c t\u00f2a nh\u00e0<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">M\u00f4 h\u00ecnh tri\u1ec3n khai ph\u00e2n l\u1edbp n\u00e0y minh h\u1ecda c\u00e1ch c\u00e1c m\u00f4-\u0111un SFP ho\u1ea1t \u0111\u1ed9ng nh\u01b0 c\u00e1c giao di\u1ec7n quang m\u00f4-\u0111un tr\u00ean c\u00e1c t\u1ea7ng m\u1ea1ng Truy c\u1eadp, T\u1eadp h\u1ee3p v\u00e0 L\u00f5i.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >C\u00e1c m\u00f4-\u0111un SFP \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u1edf \u0111\u00e2u?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c m\u00f4-\u0111un SFP \u0111\u01b0\u1ee3c tri\u1ec3n khai \u1edf m\u1ecdi n\u01a1i y\u00eau c\u1ea7u k\u1ebft n\u1ed1i quang s\u1ee3i linh ho\u1ea1t \u2014 t\u1eeb c\u00e1c li\u00ean k\u1ebft n\u1ed9i b\u1ed9 trung t\u00e2m d\u1eef li\u1ec7u c\u1ef1 ly ng\u1eafn \u0111\u1ebfn v\u1eadn chuy\u1ec3n n\u1ec1n t\u1ea3ng c\u1ee7a nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 Internet (ISP) \u1edf kho\u1ea3ng c\u00e1ch xa. Kh\u1ea3 n\u0103ng th\u00edch \u1ee9ng c\u1ee7a ch\u00fang v\u1edbi c\u00e1c l\u1edbp m\u1ea1ng kh\u00e1c nhau, kho\u1ea3ng c\u00e1ch truy\u1ec1n d\u1eabn v\u00e0 ti\u00eau chu\u1ea9n quang h\u1ecdc khi\u1ebfn ch\u00fang tr\u1edf th\u00e0nh th\u00e0nh ph\u1ea7n n\u1ec1n t\u1ea3ng trong ki\u1ebfn tr\u00fac m\u1ea1ng hi\u1ec7n \u0111\u1ea1i.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">B\u1eb1ng c\u00e1ch l\u1ef1a ch\u1ecdn m\u00f4-\u0111un SFP ph\u00f9 h\u1ee3p v\u1edbi thi\u1ebft k\u1ebf l\u1edbp m\u1ea1ng (Truy c\u1eadp, T\u00edch h\u1ee3p, L\u00f5i), c\u00e1c t\u1ed5 ch\u1ee9c c\u00f3 th\u1ec3 x\u00e2y d\u1ef1ng c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng s\u1ee3i quang c\u00f3 kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng, d\u1ec5 b\u1ea3o tr\u00ec v\u00e0 hi\u1ec7u qu\u1ea3 v\u1ec1 chi ph\u00ed.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\u27a1\ufe0f C\u00e1c lo\u1ea1i m\u00f4-\u0111un SFP trong m\u1ea1ng<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c m\u00f4-\u0111un SFP c\u00f3 nhi\u1ec1u lo\u1ea1i kh\u00e1c nhau nh\u1eb1m h\u1ed7 tr\u1ee3 c\u00e1c kho\u1ea3ng c\u00e1ch truy\u1ec1n d\u1eabn, ph\u01b0\u01a1ng ti\u1ec7n v\u00e0 \u1ee9ng d\u1ee5ng kh\u00e1c nhau. Vi\u1ec7c l\u1ef1a ch\u1ecdn m\u00f4-\u0111un ph\u00f9 h\u1ee3p ph\u1ee5 thu\u1ed9c v\u00e0o c\u00e1c y\u1ebfu t\u1ed1 nh\u01b0 lo\u1ea1i s\u1ee3i quang, ph\u1ea1m vi y\u00eau c\u1ea7u v\u00e0 t\u00f4-p\u00f4 m\u1ea1ng. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 ph\u00e2n lo\u1ea1i c\u00f3 c\u1ea5u tr\u00fac c\u1ee7a c\u00e1c m\u00f4-\u0111un SFP th\u01b0\u1eddng d\u00f9ng trong c\u00e1c m\u1ea1ng hi\u1ec7n \u0111\u1ea1i.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1200\" height=\"675\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/5bedce6589ce48f0ac7edaec6ee71b59.jpg\" alt=\"Types of SFP Modules in Networking:SX, LX, EX, ZX, BiDi, Copper RJ45, CWDM and DWDM\" class=\"wp-image-3211\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/5bedce6589ce48f0ac7edaec6ee71b59.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/5bedce6589ce48f0ac7edaec6ee71b59-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/5bedce6589ce48f0ac7edaec6ee71b59-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/5bedce6589ce48f0ac7edaec6ee71b59-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/5bedce6589ce48f0ac7edaec6ee71b59-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" >C\u00e1c m\u00f4-\u0111un SFP s\u1ee3i quang (SX, LX, EX, ZX)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>M\u00f4 t\u1ea3:<\/strong><br\/>\u0110\u00e2y l\u00e0 c\u00e1c m\u00f4-\u0111un SFP s\u1ee3i quang ti\u00eau chu\u1ea9n m\u1ed9t ch\u1ebf \u0111\u1ed9 ho\u1eb7c <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/491494.htm\">\u0111a ch\u1ebf \u0111\u1ed9,<\/a> \u0111\u01b0\u1ee3c ph\u00e2n bi\u1ec7t theo b\u01b0\u1edbc s\u00f3ng v\u00e0 ph\u1ea1m vi ho\u1ea1t \u0111\u1ed9ng.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>SX (Ph\u1ea1m vi ng\u1eafn):<\/strong> 850\u202fnm, s\u1ee3i quang \u0111a ch\u1ebf \u0111\u1ed9, l\u00ean \u0111\u1ebfn 550\u202fm<\/p><\/li><li><p><strong>LX (Ph\u1ea1m vi d\u00e0i):<\/strong> 1310\u202fnm, s\u1ee3i quang m\u1ed9t ch\u1ebf \u0111\u1ed9, l\u00ean \u0111\u1ebfn 10\u202fkm<\/p><\/li><li><p><strong>EX (Ph\u1ea1m vi m\u1edf r\u1ed9ng):<\/strong> 1310\u202fnm, s\u1ee3i quang m\u1ed9t ch\u1ebf \u0111\u1ed9, l\u00ean \u0111\u1ebfn 40\u202fkm<\/p><\/li><li><p><strong>ZX (Ph\u1ea1m vi m\u1edf r\u1ed9ng\/ Khu v\u1ef1c m\u1edf r\u1ed9ng):<\/strong> 1550\u202fnm, s\u1ee3i quang m\u1ed9t ch\u1ebf \u0111\u1ed9, l\u00ean \u0111\u1ebfn 80\u202fkm<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng:<\/strong> Li\u00ean k\u1ebft l\u00ean trung t\u00e2m d\u1eef li\u1ec7u, x\u01b0\u01a1ng s\u1ed1ng doanh nghi\u1ec7p, k\u1ebft n\u1ed1i gi\u1eefa c\u00e1c t\u00f2a nh\u00e0.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >C\u00e1c m\u00f4-\u0111un SFP BiDi<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>M\u00f4 t\u1ea3:<\/strong><br\/>Hai chi\u1ec1u <a target=\"_self\" href=\"https:\/\/www.l-p.com\/store-27039-1g-bidi-sfp.htm\">C\u00e1c m\u00f4-\u0111un SFP (BiDi)<\/a> s\u1eed d\u1ee5ng k\u1ef9 thu\u1eadt gh\u00e9p k\u00eanh ph\u00e2n chia theo b\u01b0\u1edbc s\u00f3ng (WDM) \u0111\u1ec3 truy\u1ec1n v\u00e0 nh\u1eadn t\u00edn hi\u1ec7u tr\u00ean m\u1ed9t s\u1ee3i quang duy nh\u1ea5t b\u1eb1ng hai b\u01b0\u1edbc s\u00f3ng ri\u00eang bi\u1ec7t.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>C\u1eb7p b\u01b0\u1edbc s\u00f3ng \u0111i\u1ec3n h\u00ecnh: 1310\/1490\u202fnm, 1550\/1310\u202fnm<\/p><\/li><li><p>Ph\u1ea1m vi: 10\u201340\u202fkm t\u00f9y theo m\u00f4-\u0111un<\/p><\/li><li><p>Y\u00eau c\u1ea7u gh\u00e9p c\u1eb7p b\u01b0\u1edbc s\u00f3ng \u0111\u1ea7u cu\u1ed1i<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng:<\/strong> M\u00f4i tr\u01b0\u1eddng thi\u1ebfu s\u1ee3i quang, n\u00e2ng c\u1ea5p c\u1ea3i t\u1ea1o, li\u00ean k\u1ebft khu\u00f4n vi\u00ean v\u00e0 \u0111\u00f4 th\u1ecb.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >M\u00f4-\u0111un SFP \u0111\u1ed3ng RJ45<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>M\u00f4 t\u1ea3:<\/strong><br\/>C\u00e1c m\u00f4-\u0111un SFP RJ45 cung c\u1ea5p k\u1ebft n\u1ed1i Ethernet Gigabit \u0111\u1ed3ng tr\u00ean c\u00e1p xo\u1eafn \u0111\u00f4i ti\u00eau chu\u1ea9n.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>T\u1ed1c \u0111\u1ed9: 100\u202fMbps \u2013 1\u202fGbps<\/p><\/li><li><p>Kho\u1ea3ng c\u00e1ch: l\u00ean \u0111\u1ebfn 100\u202fm tr\u00ean c\u00e1p Cat5e\/Cat6<\/p><\/li><li><p>Thay th\u1ebf n\u00f3ng \u0111\u01b0\u1ee3c, ph\u00f9 h\u1ee3p cho c\u00e1c li\u00ean k\u1ebft l\u00ean c\u1ef1 ly ng\u1eafn<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng:<\/strong> Li\u00ean k\u1ebft l\u00ean switch truy c\u1eadp, \u0111\u1ea5u n\u1ed1i trong c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng \u0111\u1ed3ng k\u1ebf th\u1eeba, tri\u1ec3n khai nh\u1ea1y c\u1ea3m v\u1ec1 chi ph\u00ed.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >C\u00e1c m\u00f4-\u0111un SFP CWDM v\u00e0 DWDM<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>M\u00f4 t\u1ea3:<\/strong><br\/>C\u00e1c m\u00f4-\u0111un SFP ph\u00e2n chia b\u01b0\u1edbc s\u00f3ng th\u00f4 (CWDM) v\u00e0 ph\u00e2n chia b\u01b0\u1edbc s\u00f3ng d\u00e0y \u0111\u1eb7c (DWDM) cho ph\u00e9p nhi\u1ec1u b\u01b0\u1edbc s\u00f3ng c\u00f9ng t\u1ed3n t\u1ea1i tr\u00ean m\u1ed9t s\u1ee3i c\u00e1p quang duy nh\u1ea5t, t\u1eeb \u0111\u00f3 t\u0103ng hi\u1ec7u su\u1ea5t s\u1eed d\u1ee5ng s\u1ee3i quang.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Kho\u1ea3ng c\u00e1ch CWDM: 20\u202fnm, t\u1ea7m xa l\u00ean \u0111\u1ebfn 80\u202fkm<\/p><\/li><li><p>Kho\u1ea3ng c\u00e1ch DWDM: l\u01b0\u1edbi 100\u202fGHz \/ 50\u202fGHz, t\u1ea7m xa 80\u2013120\u202fkm<\/p><\/li><li><p>Th\u01b0\u1eddng c\u00f3 kh\u1ea3 n\u0103ng \u0111i\u1ec1u ch\u1ec9nh b\u01b0\u1edbc s\u00f3ng (tunable) v\u00e0 t\u01b0\u01a1ng th\u00edch v\u1edbi b\u1ed9 khu\u1ebfch \u0111\u1ea1i.<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng:<\/strong> C\u01a1 s\u1edf h\u1ea1 t\u1ea7ng l\u00f5i nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 Internet (ISP) \u0111\u01b0\u1eddng d\u00e0i, t\u1ed5ng h\u1ee3p m\u1ea1ng \u0111\u00f4 th\u1ecb (metro), v\u1eadn chuy\u1ec3n \u0111a k\u00eanh tr\u00ean c\u00e1p quang.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >B\u1ea3ng tra c\u1ee9u nhanh c\u00e1c lo\u1ea1i m\u00f4-\u0111un SFP<\/h3>\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;\"\/><col style=\"min-width: 25px;\"\/><\/colgroup><tbody><tr><th colspan=\"1\" rowspan=\"1\"><p>Lo\u1ea1i<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>B\u01b0\u1edbc s\u00f3ng<br><\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>Kho\u1ea3ng c\u00e1ch<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>Lo\u1ea1i s\u1ee3i<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>Tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng<\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/478231.htm\">SX<\/a><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>850\u202fnm<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>0\u2013550\u202fm<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\u0110a ch\u1ebf \u0111\u1ed9<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Trung t\u00e2m d\u1eef li\u1ec7u, k\u1ebft n\u1ed1i l\u00ean (uplink) c\u1ef1 ly ng\u1eafn<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/478919.htm\">LX<\/a><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>1310\u202fnm<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>0\u201310\u202fkm<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\u0110\u01a1n ch\u1ebf \u0111\u1ed9<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>C\u01a1 s\u1edf h\u1ea1 t\u1ea7ng l\u00f5i doanh nghi\u1ec7p\/t\u00f2a nh\u00e0<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/491454.htm\">modules<\/a><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>1310\u202fnm<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>10\u201340\u202fkm<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\u0110\u01a1n ch\u1ebf \u0111\u1ed9<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Li\u00ean k\u1ebft khu\u00f4n vi\u00ean, li\u00ean k\u1ebft \u0111\u00f4 th\u1ecb (metro)<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/476865.htm\">ZX<\/a><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>1550\u202fnm<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>40\u201380\u202fkm<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\u0110\u01a1n ch\u1ebf \u0111\u1ed9<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\u0110\u01b0\u1eddng d\u00e0i, c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng l\u00f5i ISP<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>BiDi<br><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>1310\/1490\u202fnm<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>10\u201340\u202fkm<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>S\u1ee3i quang \u0111\u01a1n ch\u1ebf \u0111\u1ed9 (SMF)<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>C\u00e1c tri\u1ec3n khai b\u1ecb gi\u1edbi h\u1ea1n b\u1edfi s\u1ee3i quang<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/476813.htm\">\u0110\u1ed3ng RJ45<\/a> <\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Kh\u00f4ng \u00e1p d\u1ee5ng<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>0\u2013100\u202fm<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\u0110\u1ed3ng<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>K\u1ebft n\u1ed1i l\u00ean (uplink) truy c\u1eadp, m\u1ea1ng k\u1ebf th\u1eeba<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/492144.htm\">CWDM<\/a><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>1270\u20131610\u202fnm<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>L\u00ean \u0111\u1ebfn 80\u202fkm<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>SMF<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>M\u1ea1ng \u0111\u00f4 th\u1ecb (metro) &amp; c\u00e1p quang \u0111a k\u00eanh<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>DWDM<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>L\u01b0\u1edbi ITU 50\u2013100\u202fGHz<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>80\u2013120\u202fkm<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>SMF<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\u0110\u01b0\u1eddng d\u00e0i &amp; c\u00e1p quang m\u1eadt \u0111\u1ed9 cao<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Ph\u00e2n lo\u1ea1i v\u00e0 b\u1ea3ng n\u00e0y cung c\u1ea5p t\u00e0i li\u1ec7u tham kh\u1ea3o r\u00f5 r\u00e0ng \u0111\u1ec3 k\u1ef9 s\u01b0 l\u1ef1a ch\u1ecdn lo\u1ea1i SFP ph\u00f9 h\u1ee3p d\u1ef1a tr\u00ean y\u00eau c\u1ea7u m\u1ea1ng, kho\u1ea3ng c\u00e1ch v\u00e0 c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng c\u00e1p quang, t\u1eeb \u0111\u00f3 n\u00e2ng cao kh\u1ea3 n\u0103ng xu\u1ea5t hi\u1ec7n trong Snippet x\u1ebfp h\u1ea1ng cao tr\u00ean Google.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\u27a1\ufe0f SFP so v\u1edbi SFP+ so v\u1edbi QSFP: S\u1ef1 kh\u00e1c bi\u1ec7t l\u00e0 g\u00ec?<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c hi\u1ec3u r\u00f5 s\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa c\u00e1c m\u00f4-\u0111un SFP, SFP+ v\u00e0 QSFP l\u00e0 \u0111i\u1ec1u thi\u1ebft y\u1ebfu \u0111\u1ec3 thi\u1ebft k\u1ebf m\u1ea1ng v\u00e0 l\u1ef1a ch\u1ecdn thi\u1ebft b\u1ecb \u0111\u00fang c\u00e1ch. M\u1ed7i lo\u1ea1i m\u00f4-\u0111un \u0111\u1ea3m nhi\u1ec7m vai tr\u00f2 ri\u00eang bi\u1ec7t trong m\u1ea1ng, t\u1eeb k\u1ebft n\u1ed1i l\u1edbp truy c\u1eadp \u0111\u1ebfn t\u1ed5ng h\u1ee3p l\u00f5i t\u1ed1c \u0111\u1ed9 cao. Vi\u1ec7c l\u1ef1a ch\u1ecdn \u0111\u00fang k\u00edch th\u01b0\u1edbc h\u00ecnh h\u1ecdc (form factor) v\u00e0 t\u1ed1c \u0111\u1ed9 \u0111\u1ea3m b\u1ea3o hi\u1ec7u n\u0103ng t\u1ed1i \u01b0u, kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng v\u00e0 hi\u1ec7u qu\u1ea3 chi ph\u00ed.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1200\" height=\"675\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/dc3ff986d5ad484e8df355b654893a80.jpg\" alt=\"SFP vs. SFP+ vs. QSFP\" class=\"wp-image-3212\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/dc3ff986d5ad484e8df355b654893a80.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/dc3ff986d5ad484e8df355b654893a80-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/dc3ff986d5ad484e8df355b654893a80-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/dc3ff986d5ad484e8df355b654893a80-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/dc3ff986d5ad484e8df355b654893a80-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>C\u00e1c y\u1ebfu t\u1ed1 c\u1ea7n c\u00e2n nh\u1eafc:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><a target=\"_self\" href=\"https:\/\/www.l-p.com\/store-26155-1g-sfp.htm\"><strong>SFP<\/strong><\/a><strong> (M\u00f4-\u0111un c\u1eafm r\u1eddi d\u1ea1ng nh\u1ecf \u2013 Small Form-factor Pluggable):<\/strong> H\u1ed7 tr\u1ee3 t\u1ed1c \u0111\u1ed9 1\u202fGbps, l\u00fd t\u01b0\u1edfng cho k\u1ebft n\u1ed1i truy c\u1eadp v\u00e0 bi\u00ean m\u1ea1ng.<\/p><\/li><li><p><a target=\"_self\" href=\"https:\/\/www.l-p.com\/store-26192-10g-sfp.htm\"><strong>SFP+<\/strong><\/a><strong>:<\/strong> SFP n\u00e2ng cao h\u1ed7 tr\u1ee3 t\u1ed1c \u0111\u1ed9 10\u202fGbps, th\u01b0\u1eddng \u0111\u01b0\u1ee3c d\u00f9ng cho t\u1ed5ng h\u1ee3p v\u00e0 k\u1ebft n\u1ed1i l\u00ean m\u00e1y ch\u1ee7.<\/p><\/li><li><p><a target=\"_self\" href=\"https:\/\/www.l-p.com\/store-26153-40g-qsfp.htm\"><strong>QSFP<\/strong><\/a><strong> (M\u00f4-\u0111un c\u1eafm r\u1eddi d\u1ea1ng nh\u1ecf b\u1ed1n k\u00eanh \u2013 Quad Small Form-factor Pluggable):<\/strong> M\u00f4-\u0111un m\u1eadt \u0111\u1ed9 cao h\u1ed7 tr\u1ee3 t\u1ed1c \u0111\u1ed9 40\u202fGbps ho\u1eb7c 100\u202fGbps, ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c switch l\u00f5i v\u00e0 k\u1ebft n\u1ed1i l\u00ean t\u1ed1c \u0111\u1ed9 cao.<\/p><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" >B\u1ea3ng so s\u00e1nh SFP vs. SFP+ vs. QSFP<\/h3>\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>\u0110\u1eb7c t\u00ednh<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>SFP<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>SFP+<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>QSFP<\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>T\u1ed1c \u0111\u1ed9<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>1\u202fGbps<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>10\u202fGbps<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>40\u202fGbps \/ 100\u202fGbps<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>Tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng \u0111i\u1ec3n h\u00ecnh<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>K\u1ebft n\u1ed1i truy c\u1eadp \/ bi\u00ean m\u1ea1ng<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>T\u1ed5ng h\u1ee3p \/ k\u1ebft n\u1ed1i l\u00ean m\u00e1y ch\u1ee7<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>L\u00f5i m\u1ea1ng \/ \u0111\u01b0\u1eddng truy\u1ec1n t\u1ed1c \u0111\u1ed9 cao<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>H\u1ec7 s\u1ed1 d\u1ea1ng<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Nh\u1ecf g\u1ecdn, m\u1ed9t k\u00eanh (single-lane)<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Gi\u1ed1ng SFP, nh\u01b0ng \u0111i\u1ec7n t\u1eed \u0111\u01b0\u1ee3c c\u1ea3i ti\u1ebfn<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>B\u1ed1n k\u00eanh (quad-lane) \u0111\u1ec3 \u0111\u1ea1t th\u00f4ng l\u01b0\u1ee3ng cao h\u01a1n<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>Ti\u00eau Th\u1ee5 N\u0103ng L\u01b0\u1ee3ng<\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Th\u1ea5p<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Trung b\u00ecnh<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Cao h\u01a1n (t\u00f9y thu\u1ed9c v\u00e0o bi\u1ebfn th\u1ec3 QSFP)<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><strong>Kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch ng\u01b0\u1ee3c<br><\/strong><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Kh\u00f4ng \u00e1p d\u1ee5ng<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Th\u01b0\u1eddng c\u00f3 th\u1ec3 l\u1eafp v\u1eeba c\u1ed5ng SFP (ki\u1ec3m tra nh\u00e0 cung c\u1ea5p)<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>H\u1ea1n ch\u1ebf; y\u00eau c\u1ea7u c\u1ed5ng QSFP t\u01b0\u01a1ng th\u00edch<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\u27a1\ufe0f C\u00e1c ti\u00eau chu\u1ea9n k\u1ef9 thu\u1eadt v\u00e0 tu\u00e2n th\u1ee7 SFP<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ea3m b\u1ea3o c\u00e1c m\u00f4-\u0111un SFP tu\u00e2n th\u1ee7 c\u00e1c ti\u00eau chu\u1ea9n \u0111\u01b0\u1ee3c c\u00f4ng nh\u1eadn l\u00e0 \u0111i\u1ec1u ki\u1ec7n ti\u00ean quy\u1ebft \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c kh\u1ea3 n\u0103ng t\u01b0\u01a1ng t\u00e1c, \u0111\u1ed9 tin c\u1eady v\u00e0 hi\u1ec7u n\u0103ng m\u1ea1ng. Vi\u1ec7c tu\u00e2n th\u1ee7 k\u1ef9 thu\u1eadt gi\u00fap k\u1ef9 s\u01b0 y\u00ean t\u00e2m r\u1eb1ng c\u00e1c m\u00f4-\u0111un s\u1ebd ho\u1ea1t \u0111\u1ed9ng ch\u00ednh x\u00e1c tr\u00ean c\u00e1c thi\u1ebft b\u1ecb t\u1eeb nhi\u1ec1u nh\u00e0 cung c\u1ea5p kh\u00e1c nhau, \u0111\u1ed3ng th\u1eddi h\u1ed7 tr\u1ee3 c\u00e1c t\u00ednh n\u0103ng gi\u00e1m s\u00e1t v\u00e0 qu\u1ea3n l\u00fd theo chu\u1ea9n.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1200\" height=\"675\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/a888d20be33e464c82ffc3fa4411e607.jpg\" alt=\"SFP Technical Standards and Compliance\" class=\"wp-image-3213\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/a888d20be33e464c82ffc3fa4411e607.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/a888d20be33e464c82ffc3fa4411e607-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/a888d20be33e464c82ffc3fa4411e607-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/a888d20be33e464c82ffc3fa4411e607-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/a888d20be33e464c82ffc3fa4411e607-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" >C\u00e1c ti\u00eau chu\u1ea9n v\u00e0 t\u00e0i li\u1ec7u tham kh\u1ea3o ch\u00ednh<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/sfp-8472-standard-explained-ddm-for-optical-transceivers\/\"><strong>Long-distance fiber links<\/strong><\/a><strong>:<\/strong> \u0110\u1ecbnh ngh\u0129a Gi\u00e1m s\u00e1t Quang h\u1ecdc K\u1ef9 thu\u1eadt s\u1ed1 (DOM) cho c\u00e1c m\u00f4-\u0111un SFP, bao g\u1ed3m gi\u00e1m s\u00e1t th\u1eddi gian th\u1ef1c c\u00f4ng su\u1ea5t quang, nhi\u1ec7t \u0111\u1ed9 v\u00e0 \u0111i\u1ec7n \u00e1p ngu\u1ed3n. Kh\u1ea3 n\u0103ng h\u1ed7 tr\u1ee3 DOM cho ph\u00e9p b\u1ea3o tr\u00ec m\u1ea1ng ch\u1ee7 \u0111\u1ed9ng v\u00e0 ph\u00e1t hi\u1ec7n s\u1edbm suy gi\u1ea3m li\u00ean k\u1ebft.<\/p><\/li><li><p><a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/ieee-802-3-ethernet-standard-explained\/\"><strong>IEEE 802.3<\/strong><\/a><strong>:<\/strong> C\u00e1c ti\u00eau chu\u1ea9n Ethernet (1G, 10G v\u00e0 cao h\u01a1n) quy \u0111\u1ecbnh giao di\u1ec7n \u0111i\u1ec7n, y\u00eau c\u1ea7u t\u00edn hi\u1ec7u v\u00e0 \u0111\u1eb7c t\u1ea3 quang h\u1ecdc c\u1ee7a SFP nh\u1eb1m \u0111\u1ea3m b\u1ea3o hi\u1ec7u n\u0103ng nh\u1ea5t qu\u00e1n tr\u00ean c\u00e1c thi\u1ebft b\u1ecb m\u1ea1ng.<\/p><\/li><li><p><strong>Tu\u00e2n th\u1ee7 MSA (<\/strong><a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/multi-source-agreements-optical-transceivers\/\"><strong>Th\u1ecfa thu\u1eadn \u0110a ngu\u1ed3n<\/strong><\/a><strong>):<\/strong> \u0110\u1ea3m b\u1ea3o t\u00ednh t\u01b0\u01a1ng th\u00edch v\u1ec1 h\u00ecnh d\u1ea1ng v\u1eadt l\u00fd, \u0111\u1ea7u n\u1ed1i v\u00e0 giao di\u1ec7n \u0111i\u1ec7n\/quang gi\u1eefa c\u00e1c m\u00f4-\u0111un t\u1eeb c\u00e1c nh\u00e0 cung c\u1ea5p kh\u00e1c nhau. MSA SFP quy \u0111\u1ecbnh k\u00edch th\u01b0\u1edbc, s\u01a1 \u0111\u1ed3 ch\u00e2n (pinout) v\u00e0 kh\u1ea3 n\u0103ng thay th\u1ebf n\u00f3ng (hot-swappable).<\/p><\/li><li><p><strong>M\u00e3 h\u00f3a nh\u00e0 cung c\u1ea5p v\u00e0 b\u1ed9 nh\u1edb EEPROM:<\/strong> C\u00e1c m\u00f4-\u0111un SFP bao g\u1ed3m c\u00e1c tr\u01b0\u1eddng b\u1ed9 nh\u1edb EEPROM x\u00e1c \u0111\u1ecbnh nh\u00e0 cung c\u1ea5p, m\u00e3 linh ki\u1ec7n, b\u01b0\u1edbc s\u00f3ng v\u00e0 kh\u1ea3 n\u0103ng DOM. Vi\u1ec7c m\u00e3 h\u00f3a nh\u00e0 cung c\u1ea5p \u0111\u00fang c\u00e1ch ng\u0103n ch\u1eb7n vi\u1ec7c firmware t\u1eeb ch\u1ed1i v\u00e0 \u0111\u1ea3m b\u1ea3o gi\u00e1m s\u00e1t ch\u00ednh x\u00e1c.<\/p><\/li><li><p><strong>C\u00e1c ti\u00eau chu\u1ea9n gi\u00e1m s\u00e1t DOM:<\/strong> Theo SFF-8472, c\u00e1c m\u00f4-\u0111un b\u00e1o c\u00e1o c\u00f4ng su\u1ea5t ph\u00e1t\/nh\u1eadn (Tx\/Rx), d\u00f2ng thi\u00ean \u00e1p laser, nhi\u1ec7t \u0111\u1ed9 v\u00e0 \u0111i\u1ec7n \u00e1p t\u1edbi thi\u1ebft b\u1ecb ch\u1ee7, t\u1eeb \u0111\u00f3 n\u00e2ng cao \u0111\u1ed9 tin c\u1eady E-E-A-T (Experience, Expertise, Authoritativeness, Trustworthiness) v\u00e0 an to\u00e0n v\u1eadn h\u00e0nh.<\/p><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" >V\u00ec sao vi\u1ec7c tu\u00e2n th\u1ee7 SFP l\u1ea1i quan tr\u1ecdng:<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c tu\u00e2n th\u1ee7 c\u00e1c ti\u00eau chu\u1ea9n n\u00e0y \u0111\u1ea3m b\u1ea3o <strong>kh\u1ea3 n\u0103ng t\u01b0\u01a1ng t\u00e1c gi\u1eefa c\u00e1c nh\u00e0 cung c\u1ea5p, hi\u1ec7u n\u0103ng m\u1ea1ng \u1ed5n \u0111\u1ecbnh v\u00e0 an to\u00e0n v\u1eadn h\u00e0nh<\/strong>, \u0111i\u1ec1u \u0111\u1eb7c bi\u1ec7t quan tr\u1ecdng \u0111\u1ed1i v\u1edbi m\u1ea1ng doanh nghi\u1ec7p, trung t\u00e2m d\u1eef li\u1ec7u v\u00e0 x\u01b0\u01a1ng s\u1ed1ng c\u1ee7a nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 Internet (ISP). \u0110\u1ed1i v\u1edbi k\u1ef9 s\u01b0, vi\u1ec7c x\u00e1c minh c\u00e1c m\u00f4-\u0111un \u0111\u00e1p \u1ee9ng c\u00e1c th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt SFF-8472 v\u00e0 IEEE l\u00e0 b\u01b0\u1edbc then ch\u1ed1t trong qu\u00e1 tr\u00ecnh mua s\u1eafm v\u00e0 tri\u1ec3n khai.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\u27a1\ufe0f C\u00e1c y\u1ebfu t\u1ed1 t\u01b0\u01a1ng th\u00edch v\u00e0 tri\u1ec3n khai SFP<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Khi tri\u1ec3n khai c\u00e1c m\u00f4-\u0111un SFP trong c\u00e1c m\u00f4i tr\u01b0\u1eddng m\u1ea1ng, k\u1ef9 s\u01b0 ph\u1ea3i \u0111\u00e1nh gi\u00e1 c\u1ea9n th\u1eadn<br> <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/how-to-test-sfp-compatibility\/\"><strong>t\u01b0\u01a1ng th\u00edch<\/strong><\/a><strong>, c\u00e1c th\u00f4ng s\u1ed1 quang h\u1ecdc v\u00e0 c\u00e1c r\u00e0ng bu\u1ed9c ho\u1ea1t \u0111\u1ed9ng<br><\/strong> \u0111\u1ec3 tr\u00e1nh s\u1ef1 c\u1ed1 li\u00ean k\u1ebft v\u00e0 \u0111\u1ea3m b\u1ea3o t\u00ednh \u1ed5n \u0111\u1ecbnh l\u00e2u d\u00e0i. Ph\u1ea7n n\u00e0y tr\u00ecnh b\u00e0y c\u00e1c c\u00e2n nh\u1eafc k\u1ef9 thu\u1eadt th\u1ef1c t\u1ebf \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn hi\u1ec7u n\u0103ng m\u1ea1ng.<br>.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1200\" height=\"675\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/57f549cc854f4c9eb0d8a6d952135d17.jpg\" alt=\"SFP Modules Compatibility and Deployment Considerations\" class=\"wp-image-3214\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/57f549cc854f4c9eb0d8a6d952135d17.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/57f549cc854f4c9eb0d8a6d952135d17-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/57f549cc854f4c9eb0d8a6d952135d17-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/57f549cc854f4c9eb0d8a6d952135d17-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/57f549cc854f4c9eb0d8a6d952135d17-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" >Kh\u00f3a nh\u00e0 cung c\u1ea5p v\u00e0 ki\u1ec3m tra firmware<br><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>Kh\u00f3a nh\u00e0 cung c\u1ea5p:<\/strong> M\u1ed9t s\u1ed1 thi\u1ebft b\u1ecb m\u1ea1ng ch\u1ec9 ch\u1ea5p nh\u1eadn c\u00e1c m\u00f4-\u0111un SFP t\u1eeb nh\u00e0 s\u1ea3n xu\u1ea5t t\u01b0\u01a1ng \u1ee9ng do c\u00e1c h\u1ea1n ch\u1ebf v\u1ec1 firmware ho\u1eb7c x\u00e1c minh EEPROM. Lu\u00f4n ki\u1ec3m tra <strong>danh s\u00e1ch t\u01b0\u01a1ng th\u00edch c\u1ee7a nh\u00e0 cung c\u1ea5p<\/strong> tr\u01b0\u1edbc khi tri\u1ec3n khai.<\/p><\/li><li><p><strong>X\u00e1c th\u1ef1c Firmware:<\/strong> \u0110\u1ea3m b\u1ea3o firmware c\u1ee7a thi\u1ebft b\u1ecb h\u1ed7 tr\u1ee3 lo\u1ea1i v\u00e0 t\u1ed1c \u0111\u1ed9 m\u00f4-\u0111un SFP. Firmware kh\u00f4ng t\u01b0\u01a1ng th\u00edch c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn vi\u1ec7c m\u00f4-\u0111un b\u1ecb t\u1eeb ch\u1ed1i, l\u1ed7i li\u00ean k\u1ebft ho\u1eb7c c\u1ed5ng b\u1ecb v\u00f4 hi\u1ec7u h\u00f3a.<\/p><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" >Ng\u00e2n s\u00e1ch quang h\u1ecdc v\u00e0 t\u00ednh to\u00e1n li\u00ean k\u1ebft<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Ng\u00e2n s\u00e1ch quang h\u1ecdc:<\/strong> T\u00ednh t\u1ed5ng t\u1ed5n hao cho ph\u00e9p tr\u00ean s\u1ee3i quang, \u0111\u1ea7u n\u1ed1i v\u00e0 m\u1ed1i n\u1ed1i:<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p><strong>\u0110\u1ed9 d\u1ef1 ph\u00f2ng kh\u1ea3 d\u1ee5ng = C\u00f4ng su\u1ea5t ph\u00e1t (Tx) \u2212 T\u1ed5ng t\u1ed5n hao li\u00ean k\u1ebft \u2212 \u0110\u1ed9 nh\u1ea1y thu (Rx)<\/strong><\/p><\/blockquote>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>Khuy\u1ebfn ngh\u1ecb:<br><\/strong> Duy tr\u00ec \u0111\u1ed9 d\u1ef1 ph\u00f2ng \u22653\u202fdB \u0111\u1ec3 b\u00f9 \u0111\u1eafp dao \u0111\u1ed9ng m\u00f4i tr\u01b0\u1eddng v\u00e0 l\u00e3o h\u00f3a s\u1ee3i quang.<\/p><\/li><li><p><strong>Ph\u00f9 h\u1ee3p lo\u1ea1i c\u00e1p quang:<\/strong> \u0110\u1ea3m b\u1ea3o m\u00f4-\u0111un \u0111\u01a1n mode (SMF) ho\u1eb7c \u0111a mode (MMF) ph\u00f9 h\u1ee3p v\u1edbi lo\u1ea1i s\u1ee3i quang \u0111\u00e3 l\u1eafp \u0111\u1eb7t. Vi\u1ec7c tr\u1ed9n l\u1eabn c\u00e1c lo\u1ea1i s\u1ee3i quang c\u00f3 th\u1ec3 g\u00e2y suy gi\u1ea3m ho\u1eb7c m\u1ea5t li\u00ean k\u1ebft.<\/p><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" >Nguy c\u01a1 qu\u00e1 t\u1ea3i b\u1ed9 thu (Rx) v\u00e0 c\u00e1c y\u1ebfu t\u1ed1 li\u00ean quan \u0111\u1ebfn kho\u1ea3ng c\u00e1ch<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>Nguy c\u01a1 qu\u00e1 t\u1ea3i Rx:<\/strong> Vi\u1ec7c l\u1eafp \u0111\u1eb7t m\u00f4-\u0111un SFP ng\u1eafn kho\u1ea3ng c\u00e1ch v\u00e0o li\u00ean k\u1ebft xa ho\u1eb7c ng\u01b0\u1ee3c l\u1ea1i c\u00f3 th\u1ec3 v\u01b0\u1ee3t ng\u01b0\u1ee1ng ch\u1ecbu \u0111\u1ef1ng c\u1ee7a b\u1ed9 thu. S\u1eed d\u1ee5ng <strong>b\u1ed9 suy gi\u1ea3m (attenuators)<\/strong> n\u1ebfu c\u1ea7n thi\u1ebft \u0111\u1ec3 b\u1ea3o v\u1ec7 c\u00e1c b\u1ed9 thu nh\u1ea1y c\u1ea3m.<\/p><\/li><li><p><strong>H\u01b0\u1edbng d\u1eabn v\u1ec1 kho\u1ea3ng c\u00e1ch:<\/strong> Lu\u00f4n x\u00e1c nh\u1eadn kho\u1ea3ng c\u00e1ch t\u1ed1i \u0111a \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3 b\u1edfi m\u00f4-\u0111un v\u00e0 t\u00ednh to\u00e1n t\u1ed5n hao do \u0111\u1ea7u n\u1ed1i v\u00e0 m\u1ed1i n\u1ed1i \u0111\u1ec3 duy tr\u00ec kh\u1ea3 n\u0103ng truy\u1ec1n th\u00f4ng tin \u0111\u00e1ng tin c\u1eady.<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>C\u00e1c \u0111i\u1ec3m c\u1ea7n l\u01b0u \u00fd th\u1ef1c t\u1ebf:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Ki\u1ec3m tra t\u00ednh t\u01b0\u01a1ng th\u00edch gi\u1eefa nh\u00e0 s\u1ea3n xu\u1ea5t v\u00e0 firmware tr\u01b0\u1edbc khi l\u1eafp \u0111\u1eb7t.<\/p><\/li><li><p>Th\u1ef1c hi\u1ec7n t\u00ednh to\u00e1n ng\u00e2n s\u00e1ch quang h\u1ecdc cho m\u1ecdi li\u00ean k\u1ebft.<\/p><\/li><li><p>Ph\u00f9 h\u1ee3p lo\u1ea1i s\u1ee3i quang v\u1edbi lo\u1ea1i m\u00f4-\u0111un v\u00e0 kho\u1ea3ng c\u00e1ch li\u00ean k\u1ebft d\u1ef1 ki\u1ebfn.<\/p><\/li><li><p>Gi\u00e1m s\u00e1t m\u1ee9c c\u00f4ng su\u1ea5t thu (Rx) \u0111\u1ec3 tr\u00e1nh hi\u1ec7n t\u01b0\u1ee3ng qu\u00e1 t\u1ea3i.<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c tu\u00e2n th\u1ee7 c\u00e1c y\u1ebfu t\u1ed1 n\u00e0y \u0111\u1ea3m b\u1ea3o <strong>tri\u1ec3n khai \u0111\u1ea1t chu\u1ea9n k\u1ef9 thu\u1eadt<\/strong>, gi\u1ea3m th\u1eddi gian ng\u1eebng ho\u1ea1t \u0111\u1ed9ng v\u00e0 n\u00e2ng cao \u0111\u1ed9 tin c\u1eady v\u1eadn h\u00e0nh, gi\u00fap m\u1ea1ng tr\u1edf n\u00ean v\u1eefng ch\u1eafc v\u00e0 th\u00e2n thi\u1ec7n v\u1edbi T\u1ed5ng quan AI \u2013 d\u00f9ng l\u00e0m t\u00e0i li\u1ec7u tham kh\u1ea3o.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\u27a1\ufe0f C\u00e1c c\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p v\u1ec1 SFP trong m\u1ea1ng m\u00e1y t\u00ednh<\/strong><\/h2>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1200\" height=\"675\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/e851ed298ee54135b017bb771ce80045.jpg\" alt=\"FAQs About SFP in Networking\" class=\"wp-image-3215\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/e851ed298ee54135b017bb771ce80045.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/e851ed298ee54135b017bb771ce80045-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/e851ed298ee54135b017bb771ce80045-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/e851ed298ee54135b017bb771ce80045-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/e851ed298ee54135b017bb771ce80045-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" >C\u00e2u h\u1ecfi 1: SFP d\u00f9ng s\u1ee3i quang hay c\u00e1p \u0111\u1ed3ng?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u00e1p: C\u00e1c m\u00f4-\u0111un SFP c\u00f3 th\u1ec3 h\u1ed7 tr\u1ee3 c\u1ea3 k\u1ebft n\u1ed1i quang (\u0111\u01a1n mode ho\u1eb7c \u0111a mode) v\u00e0 \u0111\u1ed3ng (RJ45), t\u00f9y thu\u1ed9c v\u00e0o lo\u1ea1i m\u00f4-\u0111un c\u1ee5 th\u1ec3.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >C\u00e2u h\u1ecfi 2: SFP c\u00f3 h\u1ed7 tr\u1ee3 thay th\u1ebf n\u00f3ng kh\u00f4ng?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u00e1p: C\u00f3. C\u00e1c m\u00f4-\u0111un SFP \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 <strong>Cat5e\/Cat6 Ethernet<\/strong>, cho ph\u00e9p c\u1eafm ho\u1eb7c r\u00fat ra m\u00e0 kh\u00f4ng c\u1ea7n t\u1eaft ngu\u1ed3n thi\u1ebft b\u1ecb.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >C\u00e2u h\u1ecfi 3: Module SFP c\u00f3 ho\u1ea1t \u0111\u1ed9ng \u0111\u01b0\u1ee3c tr\u00ean khe SFP+ kh\u00f4ng?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u00e1p: Th\u01b0\u1eddng th\u00ec c\u00f3. H\u1ea7u h\u1ebft c\u00e1c c\u1ed5ng SFP+ \u0111\u1ec1u t\u01b0\u01a1ng th\u00edch ng\u01b0\u1ee3c v\u1edbi c\u00e1c m\u00f4-\u0111un SFP, nh\u01b0ng h\u00e3y ki\u1ec3m tra \u0111\u1eb7c t\u1ea3 c\u1ee7a nh\u00e0 s\u1ea3n xu\u1ea5t \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o t\u1ed1c \u0111\u1ed9 li\u00ean k\u1ebft v\u00e0 hi\u1ec7u n\u0103ng ph\u00f9 h\u1ee3p.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >C\u00e2u h\u1ecfi 4: SFP h\u1ed7 tr\u1ee3 t\u1ed1c \u0111\u1ed9 bao nhi\u00eau?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u00e1p: C\u00e1c m\u00f4-\u0111un SFP ti\u00eau chu\u1ea9n <a target=\"_self\" href=\"https:\/\/www.l-p.com\/store-26155-1g-sfp.htm\">C\u00e1c m\u00f4-\u0111un SFP<\/a> th\u01b0\u1eddng h\u1ed7 tr\u1ee3 <strong>1\u202fGbps<\/strong>, trong khi <a target=\"_self\" href=\"https:\/\/www.l-p.com\/store-26192-10g-sfp.htm\">m\u00f4-\u0111un SFP+<\/a> h\u1ed7 tr\u1ee3 <strong>10\u202fGbps<\/strong>. C\u00e1c m\u00f4-\u0111un QSFP t\u1ed1c \u0111\u1ed9 cao h\u01a1n \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho c\u00e1c li\u00ean k\u1ebft 40\u202fGbps ho\u1eb7c 100\u202fGbps.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >C\u00e2u h\u1ecfi 5: Uplink SFP l\u00e0 g\u00ec?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u00e1p: Uplink SFP l\u00e0 k\u1ebft n\u1ed1i qua c\u1ed5ng SFP t\u1eeb m\u1ed9t switch ho\u1eb7c router t\u1edbi thi\u1ebft b\u1ecb kh\u00e1c ho\u1eb7c ph\u00e2n \u0111o\u1ea1n m\u1ea1ng kh\u00e1c, cho ph\u00e9p k\u1ebft n\u1ed1i linh ho\u1ea1t qua c\u00e1p quang ho\u1eb7c \u0111\u1ed3ng nh\u1eb1m ph\u1ee5c v\u1ee5 c\u00e1c l\u1edbp t\u1eadp trung ho\u1eb7c l\u00f5i.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >C\u00e2u h\u1ecfi 6: C\u00e1c m\u00f4-\u0111un SFP c\u00f3 th\u1ec3 tr\u1ed9n l\u1eabn c\u00e1c lo\u1ea1i s\u1ee3i quang kh\u00f4ng?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u00e1p: Kh\u00f4ng. M\u00f4-\u0111un SFP \u0111a mode ph\u1ea3i k\u1ebft n\u1ed1i v\u1edbi s\u1ee3i quang \u0111a mode, c\u00f2n m\u00f4-\u0111un SFP \u0111\u01a1n mode ph\u1ea3i k\u1ebft n\u1ed1i v\u1edbi s\u1ee3i quang \u0111\u01a1n mode \u0111\u1ec3 tr\u00e1nh suy hao t\u00edn hi\u1ec7u ho\u1eb7c m\u1ea5t li\u00ean k\u1ebft.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >C\u00e2u h\u1ecfi 7: L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 gi\u00e1m s\u00e1t SFP?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u00e1p: Th\u00f4ng qua <strong>DOM (Gi\u00e1m s\u00e1t quang k\u1ef9 thu\u1eadt s\u1ed1)<br><\/strong>, b\u00e1o c\u00e1o c\u00f4ng su\u1ea5t ph\u00e1t\/thu (Tx\/Rx), \u0111i\u1ec7n \u00e1p, nhi\u1ec7t \u0111\u1ed9 v\u00e0 d\u00f2ng \u0111i\u1ec7n thi\u00ean \u00e1p laser t\u1edbi thi\u1ebft b\u1ecb ch\u1ee7.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >C\u00e2u h\u1ecfi 8: SFP c\u00f3 h\u1ed7 tr\u1ee3 li\u00ean k\u1ebft kho\u1ea3ng c\u00e1ch xa kh\u00f4ng?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u00e1p: C\u00f3. T\u00f9y thu\u1ed9c v\u00e0o lo\u1ea1i m\u00f4-\u0111un (LX, EX, ZX), SFP c\u00f3 th\u1ec3 \u0111\u1ea1t kho\u1ea3ng c\u00e1ch t\u1eeb v\u00e0i tr\u0103m m\u00e9t \u0111\u1ebfn <strong>h\u00e0ng ch\u1ee5c kil\u00f4m\u00e9t<\/strong>, khi s\u1eed d\u1ee5ng s\u1ee3i quang \u0111\u01a1n mode v\u00e0 ng\u00e2n s\u00e1ch quang h\u1ecdc ph\u00f9 h\u1ee3p.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" ><strong>\u27a1\ufe0f K\u1ebft lu\u1eadn: Hi\u1ec3u r\u00f5 vai tr\u00f2 c\u1ee7a SFP trong c\u00e1c m\u1ea1ng hi\u1ec7n \u0111\u1ea1i<\/strong><\/h2>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1200\" height=\"675\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/ae1ca70659e6428dbeb01cd43bc2282a.jpg\" alt=\"Understanding the Role of SFP in Modern Networks\" class=\"wp-image-3216\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/ae1ca70659e6428dbeb01cd43bc2282a.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/ae1ca70659e6428dbeb01cd43bc2282a-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/ae1ca70659e6428dbeb01cd43bc2282a-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/ae1ca70659e6428dbeb01cd43bc2282a-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/ae1ca70659e6428dbeb01cd43bc2282a-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c m\u00f4-\u0111un SFP l\u00e0 th\u00e0nh ph\u1ea7n n\u1ec1n t\u1ea3ng thi\u1ebft y\u1ebfu trong ki\u1ebfn tr\u00fac m\u1ea1ng hi\u1ec7n \u0111\u1ea1i, cung c\u1ea5p c\u00e1c giao di\u1ec7n m\u00f4-\u0111un v\u00e0 c\u00f3 th\u1ec3 thay th\u1ebf n\u00f3ng (hot-swappable), m\u1edf r\u1ed9ng c\u1ea3 <strong>k\u1ebft n\u1ed1i quang v\u00e0 \u0111\u1ed3ng<\/strong>. T\u00ednh linh ho\u1ea1t c\u1ee7a ch\u00fang cho ph\u00e9p k\u1ef9 s\u01b0 m\u1ea1ng <strong>m\u1edf r\u1ed9ng b\u0103ng th\u00f4ng<\/strong>, h\u1ed7 tr\u1ee3 <strong>uplink trung t\u00e2m d\u1eef li\u1ec7u, LAN doanh nghi\u1ec7p, x\u01b0\u01a1ng s\u1ed1ng ISP v\u00e0 t\u1eadp trung \u0111\u00f4 th\u1ecb<\/strong>, \u0111\u1ed3ng th\u1eddi duy tr\u00ec kh\u1ea3 n\u0103ng t\u01b0\u01a1ng t\u00e1c theo chu\u1ea9n gi\u1eefa nhi\u1ec1u nh\u00e0 s\u1ea3n xu\u1ea5t.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Nh\u1edd t\u1eadn d\u1ee5ng c\u00e1c m\u00f4-\u0111un SFP quang v\u00e0 \u0111i\u1ec7n, c\u00e1c t\u1ed5 ch\u1ee9c c\u00f3 th\u1ec3 m\u1edf r\u1ed9ng m\u1ea1ng m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3 v\u1ec1 chi ph\u00ed, \u0111\u01a1n gi\u1ea3n h\u00f3a vi\u1ec7c n\u00e2ng c\u1ea5p v\u00e0 \u0111\u1ea3m b\u1ea3o ho\u1ea1t \u0111\u1ed9ng \u1ed5n \u0111\u1ecbnh l\u00e2u d\u00e0i. C\u00e1c m\u00f4-\u0111un SFP c\u0169ng h\u1ed7 tr\u1ee3 gi\u00e1m s\u00e1t DOM, gi\u00fap b\u1ea3o tr\u00ec v\u00e0 kh\u1eafc ph\u1ee5c s\u1ef1 c\u1ed1 m\u1ea1ng m\u1ed9t c\u00e1ch ch\u1ee7 \u0111\u1ed9ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed1i v\u1edbi c\u00e1c k\u1ef9 s\u01b0 \u0111ang l\u1eadp k\u1ebf ho\u1ea1ch tri\u1ec3n khai m\u1edbi ho\u1eb7c n\u00e2ng c\u1ea5p, vi\u1ec7c hi\u1ec3u r\u00f5 ch\u1ee9c n\u0103ng SFP, c\u00e1c lo\u1ea1i m\u00f4-\u0111un v\u00e0 c\u00e1c th\u1ef1c ti\u1ec5n tri\u1ec3n khai t\u1ed1t nh\u1ea5t l\u00e0 r\u1ea5t quan tr\u1ecdng nh\u1eb1m t\u1ed1i \u01b0u hi\u1ec7u n\u0103ng v\u00e0 \u0111\u1ed9 b\u1ec1n m\u1ea1ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Kh\u00e1m ph\u00e1 <a target=\"_self\" href=\"https:\/\/www.l-p.com\/\"><strong>C\u1eeda h\u00e0ng Ch\u00ednh th\u1ee9c LINK-PP<\/strong><\/a> \u0111\u1ec3 xem to\u00e0n b\u1ed9 danh m\u1ee5c c\u00e1c m\u00f4-\u0111un SFP, SFP+ v\u00e0 QSFP \u0111\u00e3 \u0111\u01b0\u1ee3c ch\u1ee9ng nh\u1eadn d\u00e0nh ri\u00eang cho m\u1ea1ng hi\u1ec7u n\u0103ng cao, \u0111\u1ea3m b\u1ea3o t\u00ednh t\u01b0\u01a1ng th\u00edch, \u0111\u1ed9 tin c\u1eady v\u00e0 d\u1ec5 d\u00e0ng tri\u1ec3n khai.<\/p>","protected":false},"excerpt":{"rendered":"<p>H\u01b0\u1edbng d\u1eabn to\u00e0n di\u1ec7n v\u1ec1 SFP trong m\u1ea1ng m\u00e1y t\u00ednh, bao g\u1ed3m ch\u1ee9c n\u0103ng, nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng, c\u00e1c lo\u1ea1i m\u00f4-\u0111un, k\u1ecbch b\u1ea3n tri\u1ec3n khai, t\u00ednh t\u01b0\u01a1ng th\u00edch v\u00e0 c\u00e1c ti\u00eau chu\u1ea9n k\u1ef9 thu\u1eadt cho m\u1ea1ng c\u00e1p quang hi\u1ec7n \u0111\u1ea1i.<\/p>","protected":false},"author":1,"featured_media":3217,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[26],"class_list":["post-3218","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\/vi\/wp-json\/wp\/v2\/posts\/3218","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=3218"}],"version-history":[{"count":4,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/3218\/revisions"}],"predecessor-version":[{"id":10766,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/3218\/revisions\/10766"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/media\/3217"}],"wp:attachment":[{"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/media?parent=3218"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/categories?post=3218"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/tags?post=3218"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}