{"id":2732,"date":"2026-03-25T00:00:00","date_gmt":"2026-03-25T00:00:00","guid":{"rendered":"https:\/\/lp.szlogic.cn\/knowledge-center\/sfp-standard-specifications-compatibility-guide\/"},"modified":"2026-06-22T03:47:30","modified_gmt":"2026-06-22T03:47:30","slug":"sfp-standard-specifications-compatibility-guide","status":"publish","type":"post","link":"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/sfp-standard-specifications-compatibility-guide","title":{"rendered":"Ti\u00eau chu\u1ea9n SFP, t\u00ednh t\u01b0\u01a1ng th\u00edch v\u00e0 gi\u1edbi h\u1ea1n \u2013 Gi\u1ea3i th\u00edch chi ti\u1ebft"},"content":{"rendered":"<figure class=\"wp-block-image aligncenter size-large\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"536\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/355313a4e27748cdb1430003e603b826-1024x536.jpg\" alt=\"SFP Standard Specs, Compatibility and Limits Explained\" class=\"wp-image-2723\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/355313a4e27748cdb1430003e603b826-1024x536.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/355313a4e27748cdb1430003e603b826-300x157.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/355313a4e27748cdb1430003e603b826-768x402.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/355313a4e27748cdb1430003e603b826-18x9.jpg 18w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/355313a4e27748cdb1430003e603b826.jpg 1200w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Trong c\u00e1c m\u00f4i tr\u01b0\u1eddng m\u1ea1ng t\u1ed1c \u0111\u1ed9 cao ng\u00e0y nay, Ti\u00eau chu\u1ea9n SFP (<a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/sfp-small-form-factor-pluggable-transceiver-guide\/\">Typical Medium<\/a>) \u0111\u00f3ng vai tr\u00f2 then ch\u1ed1t trong vi\u1ec7c cho ph\u00e9p k\u1ebft n\u1ed1i linh ho\u1ea1t v\u00e0 m\u1edf r\u1ed9ng quy m\u00f4 qua c\u00e1p quang v\u00e0 c\u00e1p \u0111\u1ed3ng tr\u00ean c\u00e1c thi\u1ebft b\u1ecb chuy\u1ec3n m\u1ea1ch, b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn v\u00e0 thi\u1ebft b\u1ecb giao di\u1ec7n m\u1ea1ng. T\u1eeb trung t\u00e2m d\u1eef li\u1ec7u doanh nghi\u1ec7p \u0111\u1ebfn c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng vi\u1ec5n th\u00f4ng v\u00e0 h\u1ec7 th\u1ed1ng Ethernet c\u00f4ng nghi\u1ec7p, c\u00e1c module SFP \u0111\u00e3 tr\u1edf th\u00e0nh th\u00e0nh ph\u1ea7n n\u1ec1n t\u1ea3ng \u0111\u1ec3 x\u00e2y d\u1ef1ng c\u00e1c m\u1ea1ng \u0111\u00e1ng tin c\u1eady, hi\u1ec7u n\u0103ng cao.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Tuy nhi\u00ean, b\u1ea5t ch\u1ea5p m\u1ee9c \u0111\u1ed9 \u00e1p d\u1ee5ng r\u1ed9ng r\u00e3i c\u1ee7a n\u00f3, thu\u1eadt ng\u1eef <strong>\u201cti\u00eau chu\u1ea9n SFP\u201d th\u01b0\u1eddng b\u1ecb hi\u1ec3u sai.<\/strong> Nhi\u1ec1u ng\u01b0\u1eddi d\u00f9ng gi\u1ea3 \u0111\u1ecbnh r\u1eb1ng thu\u1eadt ng\u1eef n\u00e0y \u0111\u1ec1 c\u1eadp \u0111\u1ebfn m\u1ed9t ti\u00eau chu\u1ea9n m\u1ea1ng ho\u00e0n to\u00e0n ph\u1ed5 qu\u00e1t, d\u1ec5 s\u1eed d\u1ee5ng ngay l\u1eadp t\u1ee9c t\u01b0\u01a1ng t\u1ef1 nh\u01b0 USB. Tr\u00ean th\u1ef1c t\u1ebf, SFP \u0111\u01b0\u1ee3c \u0111\u1ecbnh ngh\u0129a b\u1edfi m\u1ed9t <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/multi-source-agreements-optical-transceivers\/\">Th\u1ecfa thu\u1eadn \u0110a ngu\u1ed3n<\/a> (MSA) thay v\u00ec m\u1ed9t ti\u00eau chu\u1ea9n t\u01b0\u01a1ng th\u00edch nghi\u00eam ng\u1eb7t c\u1ee7a IEEE. \u0110i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0, m\u1eb7c d\u00f9 t\u1ea5t c\u1ea3 c\u00e1c module SFP \u0111\u1ec1u chia s\u1ebb c\u00f9ng m\u1ed9t y\u1ebfu t\u1ed1 h\u00ecnh d\u1ea1ng v\u1eadt l\u00fd chung v\u00e0 giao di\u1ec7n \u0111i\u1ec7n c\u01a1 b\u1ea3n, kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch th\u1ef1c t\u1ebf c\u1ee7a ch\u00fang c\u00f3 th\u1ec3 kh\u00e1c bi\u1ec7t \u0111\u00e1ng k\u1ec3 t\u00f9y thu\u1ed9c v\u00e0o c\u00e1c y\u1ebfu t\u1ed1 nh\u01b0 <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/products\/sfp-data-rate-1g-10g-25g-guide\/\">100G<\/a>, <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/sfp-wavelengths-850nm-1310nm-1550nm-guide\/\">b\u01b0\u1edbc s\u00f3ng<\/a>, <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/difference-between-fibers-single-mode-vs-multimode-guide\/\">lo\u1ea1i s\u1ee3i quang<\/a>, v\u00e0 c\u00e1c h\u1ea1n ch\u1ebf ph\u1ea7n m\u1ec1m\u56fa\u4ef6 c\u1ee5 th\u1ec3 theo nh\u00e0 cung c\u1ea5p.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Kho\u1ea3ng c\u00e1ch gi\u1eefa \u201cthi\u1ebft k\u1ebf \u0111\u00e3 chu\u1ea9n h\u00f3a\u201d v\u00e0 \u201ct\u01b0\u01a1ng th\u00edch th\u1ef1c t\u1ebf\u201d l\u00e0 m\u1ed9t trong nh\u1eefng nguy\u00ean nh\u00e2n ph\u1ed5 bi\u1ebfn nh\u1ea5t g\u00e2y nh\u1ea7m l\u1eabn\u2014v\u00e0 c\u00e1c s\u1ef1 c\u1ed1 tri\u1ec3n khai m\u1ea1ng\u2014m\u00e0 k\u1ef9 s\u01b0 v\u00e0 chuy\u00ean gia CNTT th\u01b0\u1eddng b\u00e1o c\u00e1o. Th\u1ef1c t\u1ebf, nhi\u1ec1u cu\u1ed9c th\u1ea3o lu\u1eadn th\u1ef1c t\u1ebf nh\u1ea5n m\u1ea1nh c\u00e1c t\u00ecnh hu\u1ed1ng m\u00e0 module SFP v\u1eeba v\u1eb7n v\u1ec1 m\u1eb7t v\u1eadt l\u00fd v\u00e0o c\u1ed5ng nh\u01b0ng l\u1ea1i kh\u00f4ng ho\u1ea1t \u0111\u1ed9ng do c\u00e1c r\u00e0ng bu\u1ed9c t\u01b0\u01a1ng th\u00edch \u1ea9n ho\u1eb7c ch\u00ednh s\u00e1ch kh\u00f3a thi\u1ebft b\u1ecb theo nh\u00e0 cung c\u1ea5p.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Trong b\u00e0i vi\u1ebft n\u00e0y, ch\u00fang ta s\u1ebd ph\u00e2n t\u00edch Ti\u00eau chu\u1ea9n SFP t\u1eeb c\u1ea3 g\u00f3c \u0111\u1ed9 k\u1ef9 thu\u1eadt v\u00e0 th\u1ef1c ti\u1ec5n, gi\u00fap b\u1ea1n hi\u1ec3u r\u00f5:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Ti\u00eau chu\u1ea9n SFP th\u1ef1c t\u1ebf <\/p><\/li>\n\n\n\n<li><p>quy \u0111\u1ecbnh \u0111i\u1ec1u g\u00ec (v\u00e0 \u0111i\u1ec1u g\u00ec kh\u00f4ng)<\/p><\/li>\n\n\n\n<li><p>V\u00ec sao kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch kh\u00f4ng \u0111\u01b0\u1ee3c \u0111\u1ea3m b\u1ea3o ngay c\u1ea3 khi c\u00f9ng thu\u1ed9c \u201cti\u00eau chu\u1ea9n\u201d \u0111\u00f3\u201d<\/p><\/li>\n\n\n\n<li><p>C\u00e1ch <a href=\"https:\/\/www.l-p.com\/store-25432-optics-transceivers-sfp-modules.htm\" target=\"_self\">C\u00e1c m\u00f4-\u0111un SFP<\/a> v\u1eadn h\u00e0nh nh\u01b0 th\u1ebf n\u00e0o trong c\u00e1c m\u00f4i tr\u01b0\u1eddng m\u1ea1ng th\u1ef1c t\u1ebf<\/p><\/li>\n\n\n\n<li><p>V\u00e0 c\u00e1ch ch\u1ecdn module ph\u00f9 h\u1ee3p \u0111\u1ec3 tr\u00e1nh c\u00e1c sai l\u1ea7m t\u1ed1n k\u00e9m trong qu\u00e1 tr\u00ecnh tri\u1ec3n khai<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ebfn cu\u1ed1i h\u01b0\u1edbng d\u1eabn n\u00e0y, b\u1ea1n s\u1ebd c\u00f3 m\u1ed9t s\u1ef1 hi\u1ec3u bi\u1ebft r\u00f5 r\u00e0ng \u1edf c\u1ea5p \u0111\u1ed9 k\u1ef9 s\u01b0<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">v\u1ec1 h\u1ec7 sinh th\u00e1i SFP\u2014gi\u00fap b\u1ea1n \u0111\u01b0a ra quy\u1ebft \u0111\u1ecbnh s\u00e1ng su\u1ed1t h\u01a1n khi l\u1ef1a ch\u1ecdn ho\u1eb7c tri\u1ec3n khai c\u00e1c module SFP trong c\u00e1c m\u1ea1ng hi\u1ec7n \u0111\u1ea1i 1G v\u00e0 10G+.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\ud83d\udfe1 Ti\u00eau chu\u1ea9n SFP l\u00e0 g\u00ec? (\u0110\u1ecbnh ngh\u0129a + Gi\u1ea3i th\u00edch MSA)<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The <strong>Ti\u00eau chu\u1ea9n SFP <\/strong>\u0111\u1ec1 c\u1eadp \u0111\u1ebfn m\u1ed9t thi\u1ebft k\u1ebf giao di\u1ec7n m\u1ea1ng \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng r\u1ed9ng r\u00e3i nh\u1eb1m k\u1ebft n\u1ed1i <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/what-is-a-network-switch\/\">routers<\/a>,<a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/what-is-a-router-key-functions-types\/\"> servers<\/a>, v\u00e0 c\u00e1c thi\u1ebft b\u1ecb m\u1ea1ng kh\u00e1c th\u00f4ng qua li\u00ean k\u1ebft c\u00e1p quang ho\u1eb7c c\u00e1p \u0111\u1ed3ng. M\u1eb7c d\u00f9 th\u01b0\u1eddng \u0111\u01b0\u1ee3c m\u00f4 t\u1ea3 l\u00e0 m\u1ed9t \u201cti\u00eau chu\u1ea9n\u201d, SFP kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t \u0111\u1eb7c t\u1ea3 IEEE duy nh\u1ea5t v\u00e0 c\u1ee9ng nh\u1eafc. Thay v\u00e0o \u0111\u00f3, n\u00f3 \u0111\u01b0\u1ee3c x\u00e2y d\u1ef1ng d\u1ef1a tr\u00ean m\u1ed9t t\u1eadp h\u1ee3p c\u00e1c th\u1ecfa thu\u1eadn do ng\u00e0nh c\u00f4ng nghi\u1ec7p x\u00e1c \u0111\u1ecbnh nh\u1eb1m \u0111\u1ea3m b\u1ea3o kh\u1ea3 n\u0103ng t\u01b0\u01a1ng t\u00e1c c\u01a1 b\u1ea3n \u1edf c\u1ea5p \u0111\u1ed9 v\u1eadt l\u00fd v\u00e0 \u0111i\u1ec7n, \u0111\u1ed3ng th\u1eddi v\u1eabn cho ph\u00e9p t\u00ednh linh ho\u1ea1t theo nh\u00e0 cung c\u1ea5p.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ec3 hi\u1ec3u \u0111\u1ea7y \u0111\u1ee7 v\u1ec1 ti\u00eau chu\u1ea9n SFP, \u0111i\u1ec1u quan tr\u1ecdng l\u00e0 ph\u00e2n t\u00edch n\u00f3 th\u00e0nh b\u1ed1n kh\u00eda c\u1ea1nh ch\u00ednh: \u0111\u1ecbnh ngh\u0129a c\u1ee7a n\u00f3, vai tr\u00f2 c\u1ee7a Th\u1ecfa thu\u1eadn \u0110a ngu\u1ed3n (MSA), l\u00fd do v\u00ec sao n\u00f3 kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t ti\u00eau chu\u1ea9n IEEE nghi\u00eam ng\u1eb7t, v\u00e0 \u201cti\u00eau chu\u1ea9n\u201d th\u1ef1c s\u1ef1 c\u00f3 \u00fd ngh\u0129a g\u00ec trong c\u00e1c m\u00f4i tr\u01b0\u1eddng m\u1ea1ng th\u1ef1c t\u1ebf.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/51a543b171b341ca87d782f27e6e552d-1024x576.jpg\" alt=\"What Is the SFP Standard? (Definition + MSA Explained)\" class=\"wp-image-2724\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/51a543b171b341ca87d782f27e6e552d-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/51a543b171b341ca87d782f27e6e552d-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/51a543b171b341ca87d782f27e6e552d-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/51a543b171b341ca87d782f27e6e552d-18x10.jpg 18w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/51a543b171b341ca87d782f27e6e552d.jpg 1200w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">\u0110\u1ecbnh ngh\u0129a v\u1ec1 B\u1ed9 thu ph\u00e1t nh\u1ecf d\u1ea1ng c\u1eafm r\u1eddi (SFP)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">B\u1ed9 thu ph\u00e1t nh\u1ecf d\u1ea1ng c\u1eafm r\u1eddi (SFP) l\u00e0 m\u1ed9t module nh\u1ecf g\u1ecdn, <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/476763.htm\">b\u1ed9 thu ph\u00e1t c\u00f3 th\u1ec3 thay th\u1ebf n\u00f3ng <\/a>\u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong thi\u1ebft b\u1ecb m\u1ea1ng \u0111\u1ec3 truy\u1ec1n v\u00e0 nh\u1eadn d\u1eef li\u1ec7u qua c\u00e1p quang ho\u1eb7c c\u00e1p \u0111\u1ed3ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c \u0111\u1eb7c \u0111i\u1ec3m ch\u00ednh bao g\u1ed3m:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>Thi\u1ebft k\u1ebf h\u1ed7 tr\u1ee3 thay n\u00f3ng<\/strong>: C\u00e1c module c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c c\u1eafm v\u00e0o ho\u1eb7c th\u00e1o ra m\u00e0 kh\u00f4ng c\u1ea7n t\u1eaft ngu\u1ed3n thi\u1ebft b\u1ecb<\/p><\/li>\n\n\n\n<li><p><strong>Ki\u1ebfn tr\u00fac m\u00f4-\u0111un<\/strong>: M\u1ed9t c\u1ed5ng h\u1ed7 tr\u1ee3 nhi\u1ec1u lo\u1ea1i ph\u01b0\u01a1ng ti\u1ec7n (quang ho\u1eb7c \u0111\u1ed3ng)<\/p><\/li>\n\n\n\n<li><p><strong>T\u1ed1c \u0111\u1ed9 m\u1edf r\u1ed9ng<\/strong>: Th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho Ethernet 1G, v\u1edbi c\u00e1c bi\u1ebfn th\u1ec3 m\u1edf r\u1ed9ng h\u1ed7 tr\u1ee3 t\u1ed1c \u0111\u1ed9 cao h\u01a1n<\/p><\/li>\n\n\n\n<li><p><strong>Ho\u1ea1t \u0111\u1ed9ng hai ch\u1ee9c n\u0103ng<\/strong>: X\u1eed l\u00fd c\u1ea3 vi\u1ec7c truy\u1ec1n (TX) v\u00e0 nh\u1eadn (RX) t\u00edn hi\u1ec7u d\u1eef li\u1ec7u<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">V\u1ec1 m\u1eb7t th\u1ef1c ti\u1ec5n trong m\u1ea1ng, <a target=\"_self\" href=\"https:\/\/www.l-p.com\/store-25832-1-2-4g-transceiver-modules.htm\">SFP<\/a> cho ph\u00e9p m\u1ed9t c\u1ed5ng duy nh\u1ea5t tr\u00ean b\u1ed9 chuy\u1ec3n m\u1ea1ch ho\u1eb7c b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn h\u1ed7 tr\u1ee3 nhi\u1ec1u lo\u1ea1i ph\u01b0\u01a1ng ti\u1ec7n v\u1eadt l\u00fd ch\u1ec9 b\u1eb1ng c\u00e1ch thay \u0111\u1ed5i module thu ph\u00e1t.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Vai tr\u00f2 c\u1ee7a Th\u1ecfa thu\u1eadn \u0110a ngu\u1ed3n (MSA)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">H\u1ec7 sinh th\u00e1i SFP ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c qu\u1ea3n l\u00fd b\u1edfi m\u1ed9t Th\u1ecfa thu\u1eadn \u0110a ngu\u1ed3n (<a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/optical-transceivers-msa-standards-guide\/\">MSA<\/a>) thay v\u00ec m\u1ed9t t\u1ed5 ch\u1ee9c ti\u00eau chu\u1ea9n duy nh\u1ea5t.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">MSA quy \u0111\u1ecbnh:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>K\u00edch th\u01b0\u1edbc c\u01a1 h\u1ecdc (\u0111\u1ea3m b\u1ea3o c\u00e1c module v\u1eeba kh\u00edt v\u1ec1 m\u1eb7t v\u1eadt l\u00fd v\u00e0o b\u1ea5t k\u1ef3 gi\u00e1 \u0111\u1ee1 SFP n\u00e0o tu\u00e2n th\u1ee7 ti\u00eau chu\u1ea9n)<\/p><\/li>\n\n\n\n<li><p>\u0110\u1eb7c t\u1ea3 giao di\u1ec7n \u0111i\u1ec7n (b\u1ed1 tr\u00ed ch\u00e2n v\u00e0 h\u00e0nh vi t\u00edn hi\u1ec7u)<\/p><\/li>\n\n\n\n<li><p>Giao th\u1ee9c truy\u1ec1n th\u00f4ng c\u01a1 b\u1ea3n gi\u1eefa module v\u00e0 thi\u1ebft b\u1ecb ch\u1ee7<\/p><\/li>\n\n\n\n<li><p>Khung ch\u1ea9n \u0111o\u00e1n k\u1ef9 thu\u1eadt s\u1ed1 (th\u01b0\u1eddng d\u1ef1a tr\u00ean <a href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/sfp-8472-standard-explained-ddm-for-optical-transceivers\/\" target=\"_blank\" rel=\"\">Long-distance fiber links<\/a>)<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ee5c \u0111\u00edch c\u1ee7a MSA l\u00e0 \u0111\u1ea3m b\u1ea3o c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t kh\u00e1c nhau c\u00f3 th\u1ec3 t\u1ea1o ra c\u00e1c module c\u00f3 th\u1ec3 ho\u00e1n \u0111\u1ed5i cho nhau v\u1ec1 m\u1eb7t v\u1eadt l\u00fd v\u00e0 \u0111i\u1ec7n, v\u1eeba kh\u00edt v\u00e0o c\u00f9ng m\u1ed9t thi\u1ebft k\u1ebf c\u1ed5ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Tuy nhi\u00ean, MSA kh\u00f4ng quy \u0111\u1ecbnh \u0111\u1ea7y \u0111\u1ee7:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Quy t\u1eafc x\u00e1c th\u1ef1c theo nh\u00e0 cung c\u1ea5p<\/p><\/li>\n\n\n\n<li><p>Ki\u1ec3m tra kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch \u1edf c\u1ea5p ph\u1ea7n m\u1ec1m\u56fa\u4ef6<\/p><\/li>\n\n\n\n<li><p>\u0110i\u1ec1u ch\u1ec9nh hi\u1ec7u n\u0103ng ho\u1eb7c c\u00e1c t\u00ednh n\u0103ng m\u1edf r\u1ed9ng v\u01b0\u1ee3t qu\u00e1 \u0111\u1eb7c t\u1ea3 c\u01a1 b\u1ea3n<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u00e2y l\u00e0 n\u01a1i b\u1eaft \u0111\u1ea7u xu\u1ea5t hi\u1ec7n s\u1ef1 kh\u00e1c bi\u1ec7t v\u1ec1 kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch trong th\u1ef1c t\u1ebf.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">V\u00ec sao SFP kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t \u201cti\u00eau chu\u1ea9n nghi\u00eam ng\u1eb7t\u201d c\u1ee7a IEEE<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Kh\u00f4ng gi\u1ed1ng nh\u01b0 c\u00e1c ti\u00eau chu\u1ea9n Ethernet nh\u01b0 <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/ieee-802-3-ethernet-standard-explained\/\">IEEE 802.3<\/a>, ti\u00eau chu\u1ea9n SFP b\u1ea3n th\u00e2n n\u00f3 kh\u00f4ng \u0111\u01b0\u1ee3c IEEE \u0111\u1ecbnh ngh\u0129a \u0111\u1ea7y \u0111\u1ee7 nh\u01b0 m\u1ed9t khu\u00f4n kh\u1ed5 t\u01b0\u01a1ng th\u00edch \u0111\u1ea7u cu\u1ed1i ho\u00e0n ch\u1ec9nh.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Thay v\u00ec:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>IEEE \u0111\u1ecbnh ngh\u0129a <strong>c\u00e1c ti\u00eau chu\u1ea9n t\u00edn hi\u1ec7u Ethernet (v\u00ed d\u1ee5: 1G, 10G, 25G)<\/strong><\/p><\/li>\n\n\n\n<li><p>MSA SFP \u0111\u1ecbnh ngh\u0129a <strong>giao di\u1ec7n module v\u1eadt l\u00fd<\/strong><\/p><\/li>\n\n\n\n<li><p>C\u00e1c nh\u00e0 cung c\u1ea5p tri\u1ec3n khai <strong>logic \u0111\u1ed9c quy\u1ec1n b\u1ed5 sung<\/strong> tr\u00ean thi\u1ebft k\u1ebf c\u01a1 b\u1ea3n<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">S\u1ef1 ph\u00e2n t\u00e1ch n\u00e0y t\u1ea1o ra m\u1ed9t \u0111i\u1ec3m kh\u00e1c bi\u1ec7t quan tr\u1ecdng:<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">IEEE quy \u0111\u1ecbnh c\u00e1ch d\u1eef li\u1ec7u di chuy\u1ec3n; SFP quy \u0111\u1ecbnh c\u00e1ch module ph\u1ea7n c\u1ee9ng k\u1ebft n\u1ed1i.<\/p>\n<\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\">Do c\u1ea5u tr\u00fac n\u00e0y, hai module SFP c\u00f3 th\u1ec3 \u0111\u1ec1u tu\u00e2n th\u1ee7 MSA nh\u01b0ng v\u1eabn v\u1eadn h\u00e0nh kh\u00e1c nhau t\u00f9y thu\u1ed9c v\u00e0o thi\u1ebft b\u1ecb ch\u1ee7 v\u00e0 h\u1ec7 sinh th\u00e1i nh\u00e0 cung c\u1ea5p.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u201cTi\u00eau chu\u1ea9n\u201d th\u1ef1c s\u1ef1 c\u00f3 \u00fd ngh\u0129a g\u00ec trong l\u0129nh v\u1ef1c m\u1ea1ng<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Trong thu\u1eadt ng\u1eef m\u1ea1ng, t\u1eeb \u201cti\u00eau chu\u1ea9n\u201d kh\u00f4ng lu\u00f4n lu\u00f4n c\u00f3 ngh\u0129a l\u00e0 kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch ph\u1ed5 qu\u00e1t \u0111\u1ea7y \u0111\u1ee7 <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/how-to-test-sfp-compatibility\/\">t\u01b0\u01a1ng th\u00edch<\/a>. Trong tr\u01b0\u1eddng h\u1ee3p SFP, t\u1eeb n\u00e0y n\u00ean \u0111\u01b0\u1ee3c hi\u1ec3u l\u00e0:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>M\u1ed9t khu\u00f4n kh\u1ed5 thi\u1ebft k\u1ebf v\u1eadt l\u00fd chung (t\u00ednh nh\u1ea5t qu\u00e1n v\u1ec1 y\u1ebfu t\u1ed1 h\u00ecnh d\u1ea1ng)<\/p><\/li>\n\n\n\n<li><p>M\u1ed9t th\u1ecfa thu\u1eadn c\u01a1 b\u1ea3n v\u1ec1 \u0111i\u1ec7n v\u00e0 t\u00edn hi\u1ec7u<\/p><\/li>\n\n\n\n<li><p>M\u1ed9t m\u1ee9c \u0111\u1ed9 t\u01b0\u01a1ng th\u00edch t\u1ed1i thi\u1ec3u, ch\u1ee9 kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t \u0111\u1ea3m b\u1ea3o<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>T\u1ea5t c\u1ea3 c\u00e1c module SFP \u0111\u1ec1u s\u1ebd v\u1eeba kh\u00edt v\u1eadt l\u00fd v\u00e0o b\u1ea5t k\u1ef3 c\u1ed5ng n\u00e0o tu\u00e2n th\u1ee7 chu\u1ea9n SFP<\/p><\/li>\n\n\n\n<li><p>Ph\u1ea7n l\u1edbn s\u1ebd tu\u00e2n theo c\u00e1c quy t\u1eafc \u0111i\u1ec7n c\u01a1 b\u1ea3n \u0111\u01b0\u1ee3c \u0111\u1ecbnh ngh\u0129a b\u1edfi Th\u1ecfa thu\u1eadn \u0110a ngu\u1ed3n (MSA)<\/p><\/li>\n\n\n\n<li><p>Nh\u01b0ng kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch ho\u1ea1t \u0111\u1ed9ng th\u1ef1c t\u1ebf ph\u1ee5 thu\u1ed9c v\u00e0o c\u00e1c y\u1ebfu t\u1ed1 b\u1ed5 sung, ch\u1eb3ng h\u1ea1n nh\u01b0:<\/p>\n<ul class=\"wp-block-list\">\n<li><p>H\u1ea1n ch\u1ebf firmware thi\u1ebft b\u1ecb<\/p><\/li>\n\n\n\n<li><p>B\u1ea3ng t\u01b0\u01a1ng th\u00edch nh\u00e0 cung c\u1ea5p<\/p><\/li>\n\n\n\n<li><p>S\u1ef1 kh\u1edbp t\u1ed1c \u0111\u1ed9 v\u00e0 giao th\u1ee9c<\/p><\/li>\n\n\n\n<li><p>\u0110\u1eb7c t\u00ednh quang h\u1ecdc (b\u01b0\u1edbc s\u00f3ng, lo\u1ea1i s\u1ee3i quang, l\u1edbp kho\u1ea3ng c\u00e1ch)<\/p><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">N\u00f3i c\u00e1ch kh\u00e1c, chu\u1ea9n SFP \u0111\u1ea3m b\u1ea3o t\u00ednh t\u01b0\u01a1ng th\u00edch v\u1ec1 m\u1eb7t c\u1ea5u tr\u00fac, nh\u01b0ng kh\u00f4ng ph\u1ea3i l\u00fac n\u00e0o c\u0169ng \u0111\u1ea3m b\u1ea3o t\u00ednh t\u01b0\u01a1ng th\u00edch v\u1ec1 m\u1eb7t ch\u1ee9c n\u0103ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1eb7c d\u00f9 chu\u1ea9n SFP cung c\u1ea5p m\u1ed9t n\u1ec1n t\u1ea3ng th\u1ed1ng nh\u1ea5t cho ph\u1ea7n c\u1ee9ng m\u1ea1ng d\u1ea1ng m\u00f4-\u0111un, h\u00e0nh vi th\u1ef1c t\u1ebf c\u1ee7a n\u00f3 l\u1ea1i ph\u1ee5 thu\u1ed9c r\u1ea5t nhi\u1ec1u v\u00e0o c\u00e1c \u0111\u1eb7c t\u1ea3 k\u1ef9 thu\u1eadt c\u1ee7a n\u00f3. Trong ph\u1ea7n ti\u1ebfp theo, ch\u00fang ta s\u1ebd ph\u00e2n t\u00edch chi ti\u1ebft nh\u1eefng g\u00ec chu\u1ea9n SFP th\u1ef1c s\u1ef1 \u0111\u1ecbnh ngh\u0129a trong th\u1ef1c ti\u1ec5n \u2014 c\u0169ng nh\u01b0 nh\u1eefng y\u1ebfu t\u1ed1 then ch\u1ed1t th\u01b0\u1eddng b\u1ecb hi\u1ec3u sai ho\u1eb7c b\u1ecf qua.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\ud83d\udfe1 Ph\u00e2n t\u00edch chi ti\u1ebft \u0111\u1eb7c t\u1ea3 SFP (Nh\u1eefng \u0111i\u1ec1u chu\u1ea9n \u0111\u1ecbnh ngh\u0129a)<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1eb7c d\u00f9 thu\u1eadt ng\u1eef \u201cchu\u1ea9n SFP\u201d th\u01b0\u1eddng b\u1ecb hi\u1ec3u nh\u1ea7m l\u00e0 m\u1ed9t \u0111\u1ea3m b\u1ea3o v\u1ec1 t\u00ednh t\u01b0\u01a1ng th\u00edch ph\u1ed5 qu\u00e1t, gi\u00e1 tr\u1ecb th\u1ef1c s\u1ef1 c\u1ee7a chu\u1ea9n n\u00e0y n\u1eb1m \u1edf c\u00e1c \u0111\u1eb7c t\u1ea3 k\u1ef9 thu\u1eadt ch\u00ednh x\u00e1c \u0111\u01b0\u1ee3c \u0111\u1ecbnh ngh\u0129a trong Th\u1ecfa thu\u1eadn \u0110a ngu\u1ed3n (MSA). C\u00e1c \u0111\u1eb7c t\u1ea3 n\u00e0y \u0111\u1ea3m b\u1ea3o r\u1eb1ng <a target=\"_self\" href=\"https:\/\/www.l-p.com\/store-26155-1g-sfp.htm\">SFP c\u1ee7a b\u00ean th\u1ee9 ba<\/a> c\u00e1c module t\u1eeb c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t kh\u00e1c nhau c\u00f3 th\u1ec3 v\u1eeba kh\u00edt v\u1ec1 m\u1eb7t v\u1eadt l\u00fd, k\u1ebft n\u1ed1i \u0111i\u1ec7n v\u00e0 giao ti\u1ebfp \u1edf m\u1ee9c c\u01a1 b\u1ea3n trong c\u00e1c thi\u1ebft b\u1ecb m\u1ea1ng tu\u00e2n th\u1ee7 chu\u1ea9n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ph\u1ea7n n\u00e0y ph\u00e2n t\u00edch c\u00e1c y\u1ebfu t\u1ed1 k\u1ef9 thu\u1eadt c\u1ed1t l\u00f5i th\u1ef1c s\u1ef1 \u0111\u01b0\u1ee3c chu\u1ea9n SFP \u0111\u1ecbnh ngh\u0129a.<\/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\/1c53071886884a11b0ca15263a5f781c.jpg\" alt=\"SFP Specifications Breakdown\" class=\"wp-image-2725\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/1c53071886884a11b0ca15263a5f781c.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/1c53071886884a11b0ca15263a5f781c-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/1c53071886884a11b0ca15263a5f781c-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/1c53071886884a11b0ca15263a5f781c-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/1c53071886884a11b0ca15263a5f781c-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Y\u1ebfu t\u1ed1 h\u00ecnh d\u00e1ng v\u1eadt l\u00fd v\u00e0 thi\u1ebft k\u1ebf h\u1ed7 tr\u1ee3 thay th\u1ebf n\u00f3ng (hot-swap)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t trong nh\u1eefng \u0111\u00f3ng g\u00f3p quan tr\u1ecdng nh\u1ea5t c\u1ee7a chu\u1ea9n SFP l\u00e0 thi\u1ebft k\u1ebf v\u1eadt l\u00fd nh\u1ecf g\u1ecdn, d\u1ea1ng m\u00f4-\u0111un, cho ph\u00e9p thi\u1ebft b\u1ecb m\u1ea1ng m\u1eadt \u0111\u1ed9 cao m\u1edf r\u1ed9ng hi\u1ec7u qu\u1ea3.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c \u0111\u1eb7c \u0111i\u1ec3m v\u1eadt l\u00fd ch\u00ednh bao g\u1ed3m:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>K\u00edch th\u01b0\u1edbc module ti\u00eau chu\u1ea9n h\u00f3a<\/strong>: \u0110\u1ea3m b\u1ea3o \u0111\u1ed9 v\u1eeba kh\u00edt nh\u1ea5t qu\u00e1n tr\u00ean m\u1ecdi khe c\u1eafm SFP<\/p><\/li>\n\n\n\n<li><p><a href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/are-sfp-modules-hot-swappable-safe-sfp-hot-swap-guide\/\" target=\"_blank\" rel=\"\"><strong>H\u1ed7 tr\u1ee3 thay th\u1ebf n\u00f3ng<\/strong><\/a><strong> kh\u1ea3 n\u0103ng h\u1ed7 tr\u1ee3 thay th\u1ebf n\u00f3ng<\/strong>: Module c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c c\u1eafm v\u00e0o ho\u1eb7c r\u00fat ra m\u00e0 kh\u00f4ng c\u1ea7n t\u1eaft ngu\u1ed3n thi\u1ebft b\u1ecb<\/p><\/li>\n\n\n\n<li><p><strong>C\u01a1 ch\u1ebf kh\u00f3a<\/strong>: Cung c\u1ea5p \u0111\u1ed9 c\u1ed1 \u0111\u1ecbnh c\u01a1 h\u1ecdc ch\u1eafc ch\u1eafn trong qu\u00e1 tr\u00ecnh v\u1eadn h\u00e0nh<\/p><\/li>\n\n\n\n<li><p><strong>L\u1ee3i th\u1ebf v\u1ec1 m\u1eadt \u0111\u1ed9 c\u1ed5ng<\/strong>: Cho ph\u00e9p l\u1eafp \u0111\u1eb7t nhi\u1ec1u <a href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/what-is-an-sfp-interface\/\" target=\"_blank\" rel=\"\">C\u1ed5ng SFP<\/a> tr\u00ean m\u1ed9t b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n duy nh\u1ea5t c\u1ee7a b\u1ed9 chuy\u1ec3n m\u1ea1ch ho\u1eb7c b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Thi\u1ebft k\u1ebf h\u1ed7 tr\u1ee3 thay th\u1ebf n\u00f3ng \u0111\u1eb7c bi\u1ec7t quan tr\u1ecdng trong m\u00f4i tr\u01b0\u1eddng doanh nghi\u1ec7p v\u00e0 vi\u1ec5n th\u00f4ng, n\u01a1i th\u1eddi gian ng\u1eebng ho\u1ea1t \u0111\u1ed9ng ph\u1ea3i \u0111\u01b0\u1ee3c gi\u1ea3m thi\u1ec3u ho\u1eb7c lo\u1ea1i b\u1ecf ho\u00e0n to\u00e0n trong qu\u00e1 tr\u00ecnh b\u1ea3o tr\u00ec ho\u1eb7c n\u00e2ng c\u1ea5p.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Giao di\u1ec7n \u0111i\u1ec7n v\u00e0 b\u1ed1 tr\u00ed ch\u00e2n c\u1eafm (pinout)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Chu\u1ea9n SFP \u0111\u1ecbnh ngh\u0129a m\u1ed9t giao di\u1ec7n \u0111i\u1ec7n chung v\u00e0 c\u1ea5u h\u00ecnh ch\u00e2n c\u1eafm (pinout), \u0111\u1ea3m b\u1ea3o module c\u00f3 th\u1ec3 giao ti\u1ebfp v\u1edbi thi\u1ebft b\u1ecb ch\u1ee7 b\u1ea5t k\u1ec3 nh\u00e0 s\u1ea3n xu\u1ea5t.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c kh\u00eda c\u1ea1nh ch\u00ednh bao g\u1ed3m:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>B\u1ed1 tr\u00ed ch\u00e2n ti\u00eau chu\u1ea9n (giao di\u1ec7n 20 ch\u00e2n)<\/strong><\/p><\/li>\n\n\n\n<li><p><strong>H\u1ed7 tr\u1ee3 t\u00edn hi\u1ec7u vi sai \u0111i\u1ec7n \u00e1p th\u1ea5p (LVDS)<\/strong><\/p><\/li>\n\n\n\n<li><p><strong>\u0110\u01b0\u1eddng truy\u1ec1n d\u1eef li\u1ec7u hai chi\u1ec1u (k\u00eanh TX v\u00e0 RX)<\/strong><\/p><\/li>\n\n\n\n<li><p><strong>Giao di\u1ec7n qu\u1ea3n l\u00fd (bus I\u00b2C \u0111\u1ec3 giao ti\u1ebfp v\u1edbi h\u1ec7 th\u1ed1ng ch\u1ee7)<\/strong><\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">B\u1ed1 tr\u00ed ch\u00e2n ti\u00eau chu\u1ea9n n\u00e0y \u0111\u1ea3m b\u1ea3o c\u00e1c module SFP c\u00f3 th\u1ec3 truy\u1ec1n v\u00e0 nh\u1eadn d\u1eef li\u1ec7u m\u1ed9t c\u00e1ch nh\u1ea5t qu\u00e1n, \u0111\u1ed3ng th\u1eddi cho ph\u00e9p thi\u1ebft b\u1ecb ch\u1ee7 truy v\u1ea5n tr\u1ea1ng th\u00e1i v\u00e0 d\u1eef li\u1ec7u c\u1ea5u h\u00ecnh c\u1ee7a module.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Tuy nhi\u00ean, m\u1eb7c d\u00f9 giao di\u1ec7n \u0111i\u1ec7n \u0111\u00e3 \u0111\u01b0\u1ee3c ti\u00eau chu\u1ea9n h\u00f3a, <strong>c\u00e1ch m\u1ed7i thi\u1ebft b\u1ecb di\u1ec5n gi\u1ea3i ho\u1eb7c x\u00e1c th\u1ef1c d\u1eef li\u1ec7u module v\u1eabn c\u00f3 th\u1ec3 kh\u00e1c nhau t\u00f9y theo nh\u00e0 cung c\u1ea5p<\/strong>, d\u1eabn \u0111\u1ebfn s\u1ef1 kh\u00e1c bi\u1ec7t v\u1ec1 t\u00ednh t\u01b0\u01a1ng th\u00edch trong tri\u1ec3n khai th\u1ef1c t\u1ebf.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">T\u1ed1c \u0111\u1ed9 d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3 (T\u1eeb Fast Ethernet \u0111\u1ebfn Gigabit)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Chu\u1ea9n SFP ban \u0111\u1ea7u \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 h\u1ed7 tr\u1ee3 \u1ee9ng d\u1ee5ng Ethernet 1G, nh\u01b0ng sau \u0111\u00f3 \u0111\u00e3 ph\u00e1t tri\u1ec3n \u0111\u1ec3 \u0111\u00e1p \u1ee9ng nhi\u1ec1u t\u1ed1c \u0111\u1ed9 d\u1eef li\u1ec7u kh\u00e1c nhau t\u00f9y theo tri\u1ec3n khai c\u1ee5 th\u1ec3.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c t\u1ed1c \u0111\u1ed9 \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3 ph\u1ed5 bi\u1ebfn bao g\u1ed3m:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>100 Mbps (Fast Ethernet trong m\u1ed9t s\u1ed1 tri\u1ec3n khai c\u0169)<\/p><\/li>\n\n\n\n<li><p>1 Gbps (Ethernet Gigabit \u2013 tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng SFP ch\u1ee7 y\u1ebfu)<\/p><\/li>\n\n\n\n<li><p>C\u00e1c bi\u1ebfn th\u1ec3 Fibre Channel (1G \/ 2G \/ 4G trong m\u1ea1ng l\u01b0u tr\u1eef)<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">C\u1ea7n l\u01b0u \u00fd:<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">Ch\u00ednh b\u1ea3n th\u00e2n chu\u1ea9n SFP ch\u1ec9 \u0111\u1ecbnh ngh\u0129a y\u1ebfu t\u1ed1 h\u00ecnh d\u00e1ng, ch\u1ee9 kh\u00f4ng \u0111\u1ecbnh ngh\u0129a s\u1ef1 ti\u1ebfn h\u00f3a v\u1ec1 t\u1ed1c \u0111\u1ed9 v\u01b0\u1ee3t ngo\u00e0i ph\u1ea1m vi ban \u0111\u1ea7u c\u1ee7a n\u00f3.<\/p>\n<\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c c\u00f4ng ngh\u1ec7 t\u1ed1c \u0111\u1ed9 cao h\u01a1n nh\u01b0 <a target=\"_self\" href=\"https:\/\/www.l-p.com\/store-26192-10g-sfp.htm\"><strong>SFP+ (10G)<\/strong><\/a> and <a target=\"_self\" href=\"https:\/\/www.l-p.com\/store-26225-25g-sfp28.htm\"><strong>SFP28 (25G)<\/strong><\/a> m\u1edf r\u1ed9ng c\u00f9ng kh\u00e1i ni\u1ec7m v\u1eadt l\u00fd n\u00e0y nh\u01b0ng \u0111\u01b0\u1ee3c \u0111i\u1ec1u ch\u1ec9nh b\u1edfi c\u00e1c Th\u1ecfa thu\u1eadn \u0110a ngu\u1ed3n (MSA) ri\u00eang v\u00e0 c\u00e1c y\u00eau c\u1ea7u \u0111i\u1ec7n nghi\u00eam ng\u1eb7t h\u01a1n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 m\u1ed9t module gi\u1ed1ng h\u1ec7t nhau v\u1ec1 m\u1eb7t v\u1eadt l\u00fd kh\u00f4ng \u0111\u1ea3m b\u1ea3o kh\u1ea3 n\u0103ng hi\u1ec7u su\u1ea5t gi\u1ed1ng nhau.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Gi\u00e1m s\u00e1t ch\u1ea9n \u0111o\u00e1n k\u1ef9 thu\u1eadt s\u1ed1 (SFF-8472 \/ DOM)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t c\u1ea3i ti\u1ebfn then ch\u1ed1t trong h\u1ec7 sinh th\u00e1i SFP l\u00e0 <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/ddm-dom-in-optical-transceivers\/\">Gi\u00e1m s\u00e1t quang h\u1ecdc k\u1ef9 thu\u1eadt s\u1ed1<\/a> (DOM), \u0111\u01b0\u1ee3c \u0111\u1ecbnh ngh\u0129a theo \u0111\u1eb7c t\u1ea3 SFF-8472.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">DOM cho ph\u00e9p gi\u00e1m s\u00e1t th\u1eddi gian th\u1ef1c v\u1ec1 t\u00ecnh tr\u1ea1ng s\u1ee9c kh\u1ecfe v\u00e0 hi\u1ec7u su\u1ea5t c\u1ee7a module, bao g\u1ed3m:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>C\u00f4ng su\u1ea5t ph\u00e1t quang (TX power)<\/p><\/li>\n\n\n\n<li><p>C\u00f4ng su\u1ea5t thu quang (RX power)<\/p><\/li>\n\n\n\n<li><p>Nhi\u1ec7t \u0111\u1ed9 c\u1ee7a module<\/p><\/li>\n\n\n\n<li><p>\u0110i\u1ec7n \u00e1p cung c\u1ea5p<\/p><\/li>\n\n\n\n<li><p>D\u00f2ng ph\u00e2n c\u1ef1c laser<\/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 \u0111\u01b0\u1ee3c th\u00f4ng qua thi\u1ebft b\u1ecb ch\u1ee7 v\u00e0 r\u1ea5t quan tr\u1ecdng \u0111\u1ed1i v\u1edbi:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>B\u1ea3o tr\u00ec d\u1ef1 \u0111o\u00e1n<\/p><\/li>\n\n\n\n<li><p>Kh\u1eafc ph\u1ee5c s\u1ef1 c\u1ed1 m\u1ea1ng<\/p><\/li>\n\n\n\n<li><p>T\u1ed1i \u01b0u h\u00f3a hi\u1ec7u su\u1ea5t<\/p><\/li>\n\n\n\n<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 \u0111\u00e3 tr\u1edf th\u00e0nh m\u1ed9t t\u00ednh n\u0103ng thi\u1ebft y\u1ebfu trong c\u00e1c m\u1ea1ng hi\u1ec7n \u0111\u1ea1i, \u0111\u1eb7c bi\u1ec7t trong trung t\u00e2m d\u1eef li\u1ec7u v\u00e0 h\u1ea1 t\u1ea7ng vi\u1ec5n th\u00f4ng, n\u01a1i kh\u1ea3 n\u0103ng quan s\u00e1t hi\u1ec7u su\u1ea5t quang h\u1ecdc tr\u1ef1c ti\u1ebfp \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn \u0111\u1ed9 tin c\u1eady.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\ud83d\udcca B\u1ea3ng t\u1ed5ng quan \u0111\u1eb7c t\u1ea3 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;\"\/><\/colgroup><tbody><tr><th colspan=\"1\" rowspan=\"1\"><p>Danh m\u1ee5c<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>Th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>M\u00f4 t\u1ea3<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>Ghi ch\u00fa<\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/products\/small-form-factor-pluggable-plus-guide\/\">H\u1ec7 s\u1ed1 d\u1ea1ng<\/a><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>SFP (\u0111\u01b0\u1ee3c \u0111\u1ecbnh ngh\u0129a b\u1edfi MSA)<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Thi\u1ebft k\u1ebf module nh\u1ecf g\u1ecdn, h\u1ed7 tr\u1ee3 thay th\u1ebf n\u00f3ng<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>V\u1eeba kh\u00edt v\u1edbi m\u1ecdi khe c\u1eafm SFP ti\u00eau chu\u1ea9n<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>Giao di\u1ec7n<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>B\u1ed9 k\u1ebft n\u1ed1i \u0111i\u1ec7n 20 ch\u00e2n<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Giao ti\u1ebfp ti\u00eau chu\u1ea9n gi\u1eefa thi\u1ebft b\u1ecb ch\u1ee7 v\u00e0 module<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Bao g\u1ed3m ch\u00e2n c\u1ea5p ngu\u1ed3n, ch\u00e2n d\u1eef li\u1ec7u v\u00e0 ch\u00e2n \u0111i\u1ec1u khi\u1ec3n<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>T\u1ed1c \u0111\u1ed9 d\u1eef li\u1ec7u<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>100 Mbps \u2013 1 Gbps<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>H\u1ed7 tr\u1ee3 Fast Ethernet &amp; Ethernet Gigabit<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\u0110\u01b0\u1ee3c m\u1edf r\u1ed9ng th\u00f4ng qua c\u00e1c ti\u00eau chu\u1ea9n li\u00ean quan<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>H\u1ed7 tr\u1ee3 giao th\u1ee9c<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Ethernet, K\u00eanh quang s\u1ee3i<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>T\u01b0\u01a1ng th\u00edch \u0111a giao th\u1ee9c<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Ph\u1ee5 thu\u1ed9c v\u00e0o lo\u1ea1i module<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>Gi\u00e1m s\u00e1t ch\u1ea9n \u0111o\u00e1n<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>SFF-8472 (DOM)<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Gi\u00e1m s\u00e1t hi\u1ec7u su\u1ea5t quang h\u1ecdc th\u1eddi gian th\u1ef1c<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>C\u00f4ng su\u1ea5t TX\/RX, nhi\u1ec7t \u0111\u1ed9, \u0111i\u1ec7n \u00e1p<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>Giao di\u1ec7n qu\u1ea3n l\u00fd<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Bus I\u00b2C<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Giao ti\u1ebfp gi\u1eefa thi\u1ebft b\u1ecb ch\u1ee7 v\u00e0 module<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Cho ph\u00e9p \u0111\u1ecdc b\u1ed9 nh\u1edb EEPROM<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>Ph\u1ea7n C\u1ee9ng C\u00f3 Th\u1ec3 Thay Th\u1ebf Khi \u0110ang Ho\u1ea1t \u0110\u1ed9ng (Hot-Swappable)<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>C\u00f3<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Module c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c thay th\u1ebf m\u00e0 kh\u00f4ng c\u1ea7n t\u1eaft m\u00e1y<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Thi\u1ebft y\u1ebfu \u0111\u1ed1i v\u1edbi m\u1ea1ng \u0111ang ho\u1ea1t \u0111\u1ed9ng<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>Lo\u1ea1i ph\u01b0\u01a1ng ti\u1ec7n truy\u1ec1n d\u1eabn<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>S\u1ee3i quang \/ \u0110\u1ed3ng (<a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/476770.htm\">SFP RJ45<\/a>)<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>H\u1ed7 tr\u1ee3 nhi\u1ec1u ph\u01b0\u01a1ng ti\u1ec7n truy\u1ec1n d\u1eabn<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Ph\u1ee5 thu\u1ed9c v\u00e0o lo\u1ea1i b\u1ed9 thu ph\u00e1t<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1eb7c d\u00f9 ti\u00eau chu\u1ea9n SFP x\u00e1c \u0111\u1ecbnh r\u00f5 c\u1ea5u tr\u00fac v\u1eadt l\u00fd, k\u1ebft n\u1ed1i \u0111i\u1ec7n v\u00e0 kh\u1ea3 n\u0103ng ch\u1ea9n \u0111o\u00e1n, nh\u01b0ng n\u00f3 kh\u00f4ng lo\u1ea1i b\u1ecf ho\u00e0n to\u00e0n c\u00e1c th\u00e1ch th\u1ee9c t\u01b0\u01a1ng th\u00edch trong th\u1ef1c t\u1ebf. Trong ph\u1ea7n ti\u1ebfp theo, ch\u00fang ta s\u1ebd t\u00ecm hi\u1ec3u l\u00fd do v\u00ec sao <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/476763.htm\">c\u00e1c m\u00f4-\u0111un SFP ti\u00eau chu\u1ea9n<\/a> th\u01b0\u1eddng kh\u00f4ng t\u01b0\u01a1ng th\u00edch ph\u1ed5 qu\u00e1t tr\u00ean m\u1ecdi nh\u00e0 cung c\u1ea5p v\u00e0 thi\u1ebft b\u1ecb, c\u0169ng nh\u01b0 c\u00e1c y\u1ebfu t\u1ed1 n\u00e0o th\u1ef1c s\u1ef1 quy\u1ebft \u0111\u1ecbnh vi\u1ec7c m\u1ed9t m\u00f4-\u0111un c\u00f3 ho\u1ea1t \u0111\u1ed9ng \u0111\u01b0\u1ee3c trong th\u1ef1c t\u1ebf hay kh\u00f4ng.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\ud83d\udfe1 Gi\u1ea3i th\u00edch t\u00ednh t\u01b0\u01a1ng th\u00edch SFP (T\u1ea1i sao \u201cti\u00eau chu\u1ea9n\u201d \u2260 ph\u1ed5 qu\u00e1t)<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1eb7c d\u00f9 ti\u00eau chu\u1ea9n SFP x\u00e1c \u0111\u1ecbnh m\u1ed9t d\u1ea1ng h\u00ecnh h\u1ecdc th\u1ed1ng nh\u1ea5t v\u00e0 giao di\u1ec7n \u0111i\u1ec7n c\u01a1 b\u1ea3n, nh\u01b0ng n\u00f3 kh\u00f4ng \u0111\u1ea3m b\u1ea3o kh\u1ea3 n\u0103ng t\u01b0\u01a1ng t\u00e1c ph\u1ed5 qu\u00e1t tr\u00ean m\u1ecdi nh\u00e0 cung c\u1ea5p v\u00e0 thi\u1ebft b\u1ecb. \u0110\u00e2y l\u00e0 m\u1ed9t trong nh\u1eefng kh\u00eda c\u1ea1nh d\u1ec5 b\u1ecb hi\u1ec3u nh\u1ea7m nh\u1ea5t trong m\u1ea1ng m\u00e1y t\u00ednh, \u0111\u1ed3ng th\u1eddi c\u0169ng l\u00e0 m\u1ed9t trong nh\u1eefng nguy\u00ean nh\u00e2n ph\u1ed5 bi\u1ebfn nh\u1ea5t g\u00e2y ra s\u1ef1 c\u1ed1 tri\u1ec3n khai do k\u1ef9 s\u01b0 b\u00e1o c\u00e1o.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Tr\u00ean th\u1ef1c t\u1ebf, t\u00ednh t\u01b0\u01a1ng th\u00edch SFP \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1edfi s\u1ef1 k\u1ebft h\u1ee3p gi\u1eefa thi\u1ebft k\u1ebf ph\u1ea7n c\u1ee9ng, x\u00e1c th\u1ef1c firmware v\u00e0 c\u00e1c th\u00f4ng s\u1ed1 quang h\u1ecdc \u2014 ch\u1ee9 kh\u00f4ng ch\u1ec9 d\u1ef1a v\u00e0o b\u1ea3n th\u00e2n \u201cti\u00eau chu\u1ea9n\u201d. \u0110\u00f3 l\u00e0 l\u00fd do v\u00ec sao hai m\u00f4-\u0111un tr\u00f4ng gi\u1ed1ng h\u1ec7t nhau l\u1ea1i c\u00f3 th\u1ec3 ho\u1ea1t \u0111\u1ed9ng r\u1ea5t kh\u00e1c nhau khi l\u1eafp v\u00e0o c\u00e1c switch ho\u1eb7c router kh\u00e1c nhau.<\/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\/31301e677e6141ffb0742e3be0765eb7.jpg\" alt=\"SFP Compatibility Explained\" class=\"wp-image-2726\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/31301e677e6141ffb0742e3be0765eb7.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/31301e677e6141ffb0742e3be0765eb7-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/31301e677e6141ffb0742e3be0765eb7-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/31301e677e6141ffb0742e3be0765eb7-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/31301e677e6141ffb0742e3be0765eb7-18x10.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 nh\u1eefng l\u00fd do ch\u00ednh khi\u1ebfn \u201cti\u00eau chu\u1ea9n\u201d kh\u00f4ng \u0111\u1ed3ng ngh\u0129a v\u1edbi \u201ct\u01b0\u01a1ng th\u00edch ph\u1ed5 qu\u00e1t\u201d.\u201d<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Kh\u00f3a nh\u00e0 cung c\u1ea5p v\u00e0 ki\u1ec3m tra EEPROM<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Nhi\u1ec1u nh\u00e0 s\u1ea3n xu\u1ea5t thi\u1ebft b\u1ecb m\u1ea1ng \u00e1p d\u1ee5ng c\u00e1c c\u01a1 ch\u1ebf ki\u1ec3m so\u00e1t t\u01b0\u01a1ng th\u00edch ri\u00eang bi\u1ec7t trong thi\u1ebft b\u1ecb c\u1ee7a h\u1ecd.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Khi m\u1ed9t m\u00f4-\u0111un SFP \u0111\u01b0\u1ee3c c\u1eafm v\u00e0o, switch ho\u1eb7c router s\u1ebd \u0111\u1ecdc d\u1eef li\u1ec7u t\u1eeb m\u00f4-\u0111un \u0111\u00f3, <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/eeprom-electrically-erasable-programmable-read-only-memory\/\">B\u1ed9 nh\u1edb EEPROM<\/a> bao g\u1ed3m:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>ID Nh\u00e0 cung c\u1ea5p<\/p><\/li>\n\n\n\n<li><p>M\u00e3 linh ki\u1ec7n<\/p><\/li>\n\n\n\n<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>\n\n\n\n<li><p>Th\u00f4ng tin tu\u00e2n th\u1ee7<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t s\u1ed1 thi\u1ebft b\u1ecb s\u1ebd:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>\u2705 Ch\u1ec9 ch\u1ea5p nh\u1eadn ID nh\u00e0 cung c\u1ea5p \u0111\u01b0\u1ee3c ph\u00ea duy\u1ec7t (danh s\u00e1ch tr\u1eafng)<\/p><\/li>\n\n\n\n<li><p>\u274c T\u1eeb ch\u1ed1i <a href=\"https:\/\/www.l-p.com\/products\/491474.htm\" target=\"_self\">c\u00e1c m\u00f4-\u0111un b\u00ean th\u1ee9 ba<br><\/a> (danh s\u00e1ch \u0111en ho\u1eb7c ph\u00e1t hi\u1ec7n kh\u00f4ng kh\u1edbp)<\/p><\/li>\n\n\n\n<li><p>\u26a0\ufe0f Cho ph\u00e9p ho\u1ea1t \u0111\u1ed9ng nh\u01b0ng hi\u1ec3n th\u1ecb c\u1ea3nh b\u00e1o ho\u1eb7c h\u1ed7 tr\u1ee3 h\u1ea1n ch\u1ebf<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110i\u1ec1u n\u00e0y t\u1ea1o ra m\u1ed9t d\u1ea1ng kh\u00f3a h\u1ec7 sinh th\u00e1i, trong \u0111\u00f3 c\u00e1c m\u00f4-\u0111un v\u1ec1 m\u1eb7t v\u1eadt l\u00fd t\u01b0\u01a1ng th\u00edch v\u1eabn c\u00f3 th\u1ec3 b\u1ecb ch\u1eb7n \u1edf c\u1ea5p \u0111\u1ed9 firmware.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">V\u1ea5n \u0111\u1ec1 kh\u00f4ng kh\u1edbp t\u1ed1c \u0111\u1ed9<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t y\u1ebfu t\u1ed1 t\u01b0\u01a1ng th\u00edch l\u1edbn kh\u00e1c l\u00e0 s\u1ef1 \u0111\u1ed3ng b\u1ed9 h\u00f3a t\u1ed1c \u0111\u1ed9 d\u1eef li\u1ec7u gi\u1eefa m\u00f4-\u0111un v\u00e0 c\u1ed5ng<strong>t<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c v\u1ea5n \u0111\u1ec1 th\u01b0\u1eddng g\u1eb7p bao g\u1ed3m:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><a href=\"https:\/\/www.l-p.com\/products\/488468.htm\" target=\"_self\">SFP 1G<\/a> c\u1eafm v\u00e0o c\u1ed5ng SFP+ ch\u1ec9 h\u1ed7 tr\u1ee3 10G (c\u00f3 th\u1ec3 th\u1ea5t b\u1ea1i ho\u1eb7c gi\u1ea3m t\u1ed1c t\u00f9y thi\u1ebft b\u1ecb)<\/p><\/li>\n\n\n\n<li><p><a href=\"https:\/\/www.l-p.com\/products\/475586.htm\" target=\"_self\">module SFP+ 10G<\/a> s\u1eed d\u1ee5ng tr\u00ean c\u00e1c c\u1ed5ng ch\u1ec9 h\u1ed7 tr\u1ee3 1G (th\u01b0\u1eddng kh\u00f4ng t\u01b0\u01a1ng th\u00edch)<\/p><\/li>\n\n\n\n<li><p>H\u1ea1n ch\u1ebf t\u1ef1 \u0111i\u1ec1u ch\u1ec9nh t\u1ed1c \u0111\u1ed9 tr\u00ean giao di\u1ec7n quang<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1eb7c d\u00f9 SFP v\u00e0 SFP+ c\u00f3 thi\u1ebft k\u1ebf v\u1eadt l\u00fd t\u01b0\u01a1ng t\u1ef1 nhau, nh\u01b0ng y\u00eau c\u1ea7u v\u1ec1 t\u00edn hi\u1ec7u \u0111i\u1ec7n v\u00e0 m\u00e3 h\u00f3a c\u1ee7a ch\u00fang kh\u00e1c bi\u1ec7t \u0111\u00e1ng k\u1ec3, khi\u1ebfn vi\u1ec7c ho\u00e1n \u0111\u1ed5i linh ho\u1ea1t gi\u1eefa hai lo\u1ea1i th\u01b0\u1eddng kh\u00f4ng kh\u1ea3 thi.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Lo\u1ea1i s\u1ee3i quang (SMF so v\u1edbi MMF) v\u00e0 s\u1ef1 kh\u00e1c bi\u1ec7t v\u1ec1 b\u01b0\u1edbc s\u00f3ng<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">T\u00ednh t\u01b0\u01a1ng th\u00edch quang h\u1ecdc ph\u1ee5 thu\u1ed9c r\u1ea5t nhi\u1ec1u v\u00e0o <strong>m\u00f4i tr\u01b0\u1eddng truy\u1ec1n d\u1eabn v\u1eadt l\u00fd v\u00e0 s\u1ef1 kh\u1edbp b\u01b0\u1edbc s\u00f3ng<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c tr\u01b0\u1eddng h\u1ee3p kh\u00f4ng kh\u1edbp \u0111i\u1ec3n h\u00ecnh bao g\u1ed3m:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><a href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/smf-optical-transceiver-vs-mmf-optical-transceiver-guide\/\" target=\"_blank\" rel=\"\"><strong>S\u1ee3i quang \u0111\u01a1n mode (SMF)<\/strong> v\u00e0. <strong>c\u00e1p quang \u0111a mode (MMF)<\/strong><\/a><\/p><\/li>\n\n\n\n<li><p>B\u01b0\u1edbc s\u00f3ng 850nm (t\u1ea7m ng\u1eafn) so v\u1edbi 1310nm \/ 1550nm (t\u1ea7m xa)<\/p><\/li>\n\n\n\n<li><p>Quang h\u1ecdc kh\u00f4ng kh\u1edbp gi\u1eefa hai \u0111\u1ea7u k\u1ebft n\u1ed1i<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">N\u1ebfu b\u1ed9 ph\u00e1t v\u00e0 b\u1ed9 thu kh\u00f4ng \u0111\u01b0\u1ee3c gh\u00e9p \u0111\u00fang c\u00e1ch:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>\u0110\u1ed9 suy hao t\u00edn hi\u1ec7u t\u0103ng l\u00ean<\/p><\/li>\n\n\n\n<li><p>\u0110\u1ed9 \u1ed5n \u0111\u1ecbnh li\u00ean k\u1ebft tr\u1edf n\u00ean kh\u00f4ng \u0111\u00e1ng tin c\u1eady<\/p><\/li>\n\n\n\n<li><p>Li\u00ean k\u1ebft c\u00f3 th\u1ec3 ho\u00e0n to\u00e0n th\u1ea5t b\u1ea1i<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u00e2y l\u00e0 m\u1ed9t trong nh\u1eefng l\u1ed7i tri\u1ec3n khai SFP ph\u1ed5 bi\u1ebfn nh\u1ea5t trong th\u1ef1c t\u1ebf.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">R\u00e0ng bu\u1ed9c t\u01b0\u01a1ng th\u00edch gi\u1eefa switch v\u00e0 NIC<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Ngay c\u1ea3 khi c\u00e1c th\u00f4ng s\u1ed1 v\u1eadt l\u00fd v\u00e0 quang h\u1ecdc \u0111\u1ec1u \u0111\u00fang, c\u00e1c quy t\u1eafc t\u01b0\u01a1ng th\u00edch c\u1ee7a thi\u1ebft b\u1ecb ch\u1ee7 v\u1eabn c\u00f3 th\u1ec3 ng\u0103n ch\u1eb7n ho\u1ea1t \u0111\u1ed9ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c r\u00e0ng bu\u1ed9c ph\u1ed5 bi\u1ebfn bao g\u1ed3m:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>H\u1ea1n ch\u1ebf firmware \u0111\u1eb7c th\u00f9 theo nh\u00e0 cung c\u1ea5p<\/p><\/li>\n\n\n\n<li><p>Danh s\u00e1ch m\u00f4-\u0111un thu ph\u00e1t \u0111\u01b0\u1ee3c ph\u00ea duy\u1ec7t<\/p><\/li>\n\n\n\n<li><p>Gi\u1edbi h\u1ea1n t\u1ed1c \u0111\u1ed9 c\u1ed5ng ho\u1eb7c v\u1ea5n \u0111\u1ec1 t\u1ef1 ph\u00e1t hi\u1ec7n<\/p><\/li>\n\n\n\n<li><p>Ki\u1ec3m tra x\u00e1c th\u1ef1c \u1edf c\u1ea5p ph\u1ea7n c\u1ee9ng<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c switch c\u1ea5p doanh nghi\u1ec7p th\u01b0\u1eddng duy tr\u00ec ma tr\u1eadn t\u01b0\u01a1ng th\u00edch nghi\u00eam ng\u1eb7t, ngh\u0129a l\u00e0 ch\u1ec9 c\u00e1c m\u00f4-\u0111un \u0111\u00e3 \u0111\u01b0\u1ee3c ki\u1ec3m tra ho\u1eb7c ch\u1ee9ng nh\u1eadn m\u1edbi \u0111\u01b0\u1ee3c \u0111\u1ea3m b\u1ea3o ho\u1ea1t \u0111\u1ed9ng m\u00e0 kh\u00f4ng ph\u00e1t sinh c\u1ea3nh b\u00e1o hay l\u1ed7i.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\ud83d\udccc B\u1ed1n y\u1ebfu t\u1ed1 t\u01b0\u01a1ng th\u00edch then ch\u1ed1t<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">T\u00ednh t\u01b0\u01a1ng th\u00edch SFP kh\u00f4ng ch\u1ec9 \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1edfi \u201cti\u00eau chu\u1ea9n\u201d, m\u00e0 c\u00f2n b\u1edfi b\u1ed1n y\u1ebfu t\u1ed1 then ch\u1ed1t sau:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><p><strong>X\u00e1c th\u1ef1c nh\u00e0 cung c\u1ea5p (ki\u1ec3m tra EEPROM &amp; firmware)<\/strong><br>Quy\u1ebft \u0111\u1ecbnh xem thi\u1ebft b\u1ecb c\u00f3 ch\u1ea5p nh\u1eadn m\u00f4-\u0111un hay kh\u00f4ng.<\/p><\/li>\n\n\n\n<li><p><strong>Ph\u00f9 h\u1ee3p t\u1ed1c \u0111\u1ed9 (c\u0103n ch\u1ec9nh 1G \/ 10G \/ 25G)<\/strong><br>\u0110\u1ea3m b\u1ea3o t\u00ednh t\u01b0\u01a1ng th\u00edch v\u1ec1 \u0111i\u1ec7n v\u00e0 giao th\u1ee9c.<\/p><\/li>\n\n\n\n<li><p><strong>Th\u00f4ng s\u1ed1 quang h\u1ecdc (lo\u1ea1i s\u1ee3i quang &amp; b\u01b0\u1edbc s\u00f3ng)<\/strong><br>Ph\u1ea3i kh\u1edbp nhau \u1edf c\u1ea3 hai \u0111\u1ea7u c\u1ee7a li\u00ean k\u1ebft.<\/p><\/li>\n\n\n\n<li><p><strong>T\u01b0\u01a1ng th\u00edch thi\u1ebft b\u1ecb (switch\/<\/strong><a href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/what-is-nic-network-interface-card\/\" target=\"_blank\" rel=\"\"><strong>NIC<\/strong><\/a><strong> quy t\u1eafc h\u1ed7 tr\u1ee3)<\/strong><br>\u0110\u01b0\u1ee3c ki\u1ec3m so\u00e1t b\u1edfi c\u00e1c ch\u00ednh s\u00e1ch ph\u1ea7n c\u1ee9ng v\u00e0 ph\u1ea7n m\u1ec1m \u0111\u1eb7c th\u00f9 theo nh\u00e0 cung c\u1ea5p.<\/p><\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c hi\u1ec3u r\u00f5 c\u00e1c r\u00e0ng bu\u1ed9c t\u01b0\u01a1ng th\u00edch n\u00e0y l\u00e0 thi\u1ebft y\u1ebfu, b\u1edfi ch\u00fang gi\u1ea3i th\u00edch l\u00fd do v\u00ec sao nhi\u1ec1u \u201cm\u00f4-\u0111un SFP ti\u00eau chu\u1ea9n\u201d l\u1ea1i th\u1ea5t b\u1ea1i trong c\u00e1c tri\u1ec3n khai th\u1ef1c t\u1ebf. Ti\u1ebfp theo, ch\u00fang ta s\u1ebd so s\u00e1nh SFP vs. SFP+ vs. SFP28, \u0111\u1ed3ng th\u1eddi gi\u1ea3i th\u00edch c\u00e1ch c\u00e1c th\u1ebf h\u1ec7 n\u00e0y ph\u00e1t tri\u1ec3n qua th\u1eddi gian v\u1edbi m\u1ee9c \u0111\u1ed9 t\u01b0\u01a1ng t\u00e1c t\u1eebng ph\u1ea7n \u2014 ch\u1ee9 kh\u00f4ng ph\u1ea3i ho\u00e0n to\u00e0n \u2014 gi\u1eefa ch\u00fang.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\ud83d\udfe1 SFP so v\u1edbi SFP+ so v\u1edbi SFP28 \u2014 Nh\u1eefng kh\u00e1c bi\u1ec7t then ch\u1ed1t v\u00e0 kh\u1ea3 n\u0103ng t\u01b0\u01a1ng t\u00e1c<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The <strong>H\u1ec7 sinh th\u00e1i SFP<\/strong> \u0111\u00e3 ph\u00e1t tri\u1ec3n qua nhi\u1ec1u th\u1ebf h\u1ec7 nh\u1eb1m h\u1ed7 tr\u1ee3 t\u1ed1c \u0111\u1ed9 m\u1ea1ng ng\u00e0y c\u00e0ng cao, t\u1eeb <strong>Ethernet 1G (SFP)<\/strong> to <strong>10G (SFP+)<\/strong> v\u00e0 hi\u1ec7n nay l\u00e0 <strong>25G (SFP28)<\/strong>. M\u1eb7c d\u00f9 c\u00e1c m\u00f4-\u0111un n\u00e0y c\u00f3 thi\u1ebft k\u1ebf h\u00ecnh h\u1ecdc v\u1eadt l\u00fd t\u01b0\u01a1ng t\u1ef1 nhau, nh\u01b0ng ch\u00fang \u0111\u01b0\u1ee3c x\u00e2y d\u1ef1ng d\u1ef1a tr\u00ean c\u00e1c th\u00f4ng s\u1ed1 \u0111i\u1ec7n v\u00e0 giao th\u1ee9c kh\u00e1c nhau \u2014 \u0111i\u1ec1u n\u00e0y \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch v\u00e0 c\u00e1c quy\u1ebft \u0111\u1ecbnh n\u00e2ng c\u1ea5p.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c hi\u1ec3u r\u00f5 s\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa ba ti\u00eau chu\u1ea9n n\u00e0y l\u00e0 thi\u1ebft y\u1ebfu \u0111\u1ec3 tr\u00e1nh c\u00e1c tr\u01b0\u1eddng h\u1ee3p kh\u00f4ng kh\u1edbp trong c\u00e1c trung t\u00e2m d\u1eef li\u1ec7u hi\u1ec7n \u0111\u1ea1i v\u00e0 m\u1ea1ng doanh nghi\u1ec7p.<\/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\/6d5d773fa8364d8583c4dad42400f100.jpg\" alt=\"SFP vs. SFP+ vs. SFP28 \u2014 Key Differences and Interoperability\" class=\"wp-image-2727\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/6d5d773fa8364d8583c4dad42400f100.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/6d5d773fa8364d8583c4dad42400f100-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/6d5d773fa8364d8583c4dad42400f100-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/6d5d773fa8364d8583c4dad42400f100-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/6d5d773fa8364d8583c4dad42400f100-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">So s\u00e1nh 1G vs. 10G vs. 25G (<a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/blog\/buying-guide\/sfp-vs-sfp-plus-vs-sfp28.htm\">SFP so v\u1edbi SFP+ so v\u1edbi SFP28<br><\/a>)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1eb7c d\u00f9 b\u1ec1 ngo\u00e0i tr\u00f4ng t\u01b0\u01a1ng t\u1ef1 nhau, m\u1ed7i th\u1ebf h\u1ec7 \u0111\u1ec1u \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf cho m\u1ed9t m\u1ee9c hi\u1ec7u n\u0103ng c\u1ee5 th\u1ec3.<\/p>\n\n\n\n<figure class=\"wp-block-table\">\n<table class=\"has-fixed-layout\">\n<colgroup><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><\/colgroup><tbody><tr><th colspan=\"1\" rowspan=\"1\"><p>Ti\u00eau chu\u1ea9n<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>T\u1ed1c \u0111\u1ed9 \u0111i\u1ec3n h\u00ecnh<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>Tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng ch\u00ednh<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>S\u1ef1 kh\u00e1c bi\u1ec7t c\u00f4ng ngh\u1ec7 then ch\u1ed1t<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>M\u1ee9c \u0111\u1ed9 t\u01b0\u01a1ng th\u00edch<\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><a target=\"_self\" href=\"https:\/\/www.l-p.com\/store-26155-1g-sfp.htm\"><strong>SFP<\/strong><\/a><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>1 Gbps<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Truy c\u1eadp doanh nghi\u1ec7p, m\u1ea1ng k\u1ebf th\u1eeba<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>PHY Ethernet BASE (1G)<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\u0110\u01b0\u1ee3c h\u1ed7 tr\u1ee3 r\u1ed9ng r\u00e3i<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><a target=\"_self\" href=\"https:\/\/www.l-p.com\/store-26192-10g-sfp.htm\"><strong>SFP+<\/strong><\/a><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>10 Gbps<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Trung t\u00e2m d\u1eef li\u1ec7u, l\u1edbp t\u1ed5ng h\u1ee3p<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>T\u00edn hi\u1ec7u \u0111i\u1ec7n n\u00e2ng cao cho 10G<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>T\u01b0\u01a1ng th\u00edch ng\u01b0\u1ee3c t\u1eebng ph\u1ea7n<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p><a target=\"_self\" href=\"https:\/\/SFP28\"><strong>SFP28<\/strong><\/a><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>25 Gbps<br><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Trung t\u00e2m d\u1eef li\u1ec7u m\u1eadt \u0111\u1ed9 cao, h\u1ea1 t\u1ea7ng \u0111i\u1ec7n to\u00e1n \u0111\u00e1m m\u00e2y<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>T\u00edn hi\u1ec7u NRZ 25G<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>T\u01b0\u01a1ng th\u00edch ng\u01b0\u1ee3c h\u1ea1n ch\u1ebf<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Nh\u1eadn \u0111\u1ecbnh then ch\u1ed1t:<br><\/strong><br>C\u1ea3 ba lo\u1ea1i \u0111\u1ec1u c\u00f3 thi\u1ebft k\u1ebf khung v\u1eadt l\u00fd t\u01b0\u01a1ng t\u1ef1 nhau, nh\u01b0ng giao di\u1ec7n \u0111i\u1ec7n v\u00e0 t\u1ed1c \u0111\u1ed9 t\u00edn hi\u1ec7u c\u1ee7a ch\u00fang v\u1ec1 c\u01a1 b\u1ea3n l\u00e0 kh\u00e1c nhau.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Quy t\u1eafc t\u01b0\u01a1ng th\u00edch ng\u01b0\u1ee3c<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t trong nh\u1eefng hi\u1ec3u l\u1ea7m ph\u1ed5 bi\u1ebfn nh\u1ea5t trong m\u1ea1ng m\u00e1y t\u00ednh l\u00e0 cho r\u1eb1ng c\u00e1c th\u1ebf h\u1ec7 SFP ho\u00e0n to\u00e0n c\u00f3 th\u1ec3 thay th\u1ebf l\u1eabn nhau. Tr\u00ean th\u1ef1c t\u1ebf, kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch ng\u01b0\u1ee3c ph\u1ee5 thu\u1ed9c r\u1ea5t nhi\u1ec1u v\u00e0o thi\u1ebft k\u1ebf thi\u1ebft b\u1ecb ch\u1ee7.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">H\u00e0nh vi t\u01b0\u01a1ng th\u00edch \u0111i\u1ec3n h\u00ecnh:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>C\u1ed5ng SFP28 \u2192 c\u00f3 th\u1ec3 h\u1ed7 tr\u1ee3 SFP+ (10G) v\u00e0 \u0111\u00f4i khi c\u1ea3 SFP (1G)<\/strong><\/p><\/li>\n\n\n\n<li><p><strong>C\u1ed5ng SFP+ \u2192 th\u01b0\u1eddng h\u1ed7 tr\u1ee3 SFP (1G), nh\u01b0ng kh\u00f4ng h\u1ed7 tr\u1ee3 SFP28 (25G)<\/strong><\/p><\/li>\n\n\n\n<li><p><strong>C\u1ed5ng SFP \u2192 ch\u1ec9 h\u1ed7 tr\u1ee3 module 1G<\/strong><\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Tuy nhi\u00ean, \u0111i\u1ec1u n\u00e0y <strong>kh\u00f4ng \u0111\u01b0\u1ee3c \u0111\u1ea3m b\u1ea3o tr\u00ean to\u00e0n c\u1ea7u<\/strong>, v\u00ec kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch ph\u1ee5 thu\u1ed9c v\u00e0o:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Kh\u1ea3 n\u0103ng firmware c\u1ee7a switch\/NIC<\/p><\/li>\n\n\n\n<li><p>C\u00e1c t\u00f9y ch\u1ecdn c\u1ea5u h\u00ecnh t\u1ed1c \u0111\u1ed9 c\u1ed5ng<\/p><\/li>\n\n\n\n<li><p>C\u00e1ch nh\u00e0 s\u1ea3n xu\u1ea5t tri\u1ec3n khai ch\u1ee9c n\u0103ng t\u1ef1 th\u01b0\u01a1ng l\u01b0\u1ee3ng (auto-negotiation)<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>T\u00f3m l\u1ea1i:<\/strong><\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">T\u01b0\u01a1ng th\u00edch v\u1eadt l\u00fd kh\u00f4ng lu\u00f4n \u0111\u1ed3ng ngh\u0129a v\u1edbi t\u01b0\u01a1ng th\u00edch ho\u1ea1t \u0111\u1ed9ng.<\/p>\n<\/blockquote>\n\n\n\n<h3 class=\"wp-block-heading\">Nh\u1eefng hi\u1ec3u l\u1ea7m ph\u1ed5 bi\u1ebfn v\u1ec1 c\u00e1c th\u1ebf h\u1ec7 SFP<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Nhi\u1ec1u v\u1ea5n \u0111\u1ec1 tri\u1ec3n khai b\u1eaft ngu\u1ed3n t\u1eeb nh\u1eefng gi\u1ea3 \u0111\u1ecbnh sai l\u1ea7m v\u1ec1 c\u00e1ch c\u00e1c th\u1ebf h\u1ec7 SFP t\u01b0\u01a1ng t\u00e1c v\u1edbi nhau.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u274c Hi\u1ec3u l\u1ea7m 1: \u201cT\u1ea5t c\u1ea3 module SFP \u0111\u1ec1u c\u00f3 th\u1ec3 thay th\u1ebf l\u1eabn nhau\u201d<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Th\u1ef1c t\u1ebf: Ch\u00fang c\u00f3 th\u1ec3 v\u1eeba kh\u00edt v\u1ec1 m\u1eb7t v\u1eadt l\u00fd, nh\u01b0ng th\u01b0\u1eddng th\u1ea5t b\u1ea1i v\u1ec1 m\u1eb7t \u0111i\u1ec7n ho\u1eb7c \u1edf c\u1ea5p giao th\u1ee9c.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u274c Hi\u1ec3u l\u1ea7m 2: \u201cSFP+ ch\u1ec9 l\u00e0 phi\u00ean b\u1ea3n SFP nhanh h\u01a1n\u201d<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Th\u1ef1c t\u1ebf: SFP+ s\u1eed d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p t\u00edn hi\u1ec7u kh\u00e1c, \u0111\u01b0\u1ee3c t\u1ed1i \u01b0u cho t\u1ed1c \u0111\u1ed9 10G v\u00e0 kh\u00f4ng \u0111\u01a1n thu\u1ea7n l\u00e0 phi\u00ean b\u1ea3n n\u00e2ng c\u1ea5p c\u1ee7a SFP.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u274c Hi\u1ec3u l\u1ea7m 3: \u201cSFP28 ho\u00e0n to\u00e0n t\u01b0\u01a1ng th\u00edch ng\u01b0\u1ee3c v\u1edbi SFP+\u201d<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Th\u1ef1c t\u1ebf: M\u1ed9t s\u1ed1 thi\u1ebft b\u1ecb h\u1ed7 tr\u1ee3 \u0111i\u1ec1u n\u00e0y, nh\u01b0ng nhi\u1ec1u thi\u1ebft b\u1ecb kh\u00e1c y\u00eau c\u1ea7u c\u1ea5u h\u00ecnh c\u1ed5ng nghi\u00eam ng\u1eb7t ho\u1eb7c t\u1eeb ch\u1ed1i c\u00e1c t\u1ed1c \u0111\u1ed9 th\u1ea5p h\u01a1n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u274c Hi\u1ec3u l\u1ea7m 4: \u201cC\u00f9ng k\u00edch th\u01b0\u1edbc h\u00ecnh d\u1ea1ng th\u00ec c\u00f9ng h\u00e0nh vi hi\u1ec7u su\u1ea5t\u201d<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Th\u1ef1c t\u1ebf: K\u00edch th\u01b0\u1edbc h\u00ecnh d\u1ea1ng \u0111\u01b0\u1ee3c chu\u1ea9n h\u00f3a, nh\u01b0ng thi\u1ebft k\u1ebf \u0111i\u1ec7n thay \u0111\u1ed5i theo t\u1eebng th\u1ebf h\u1ec7.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">C\u00e1c y\u1ebfu t\u1ed1 c\u1ea7n c\u00e2n nh\u1eafc khi n\u00e2ng c\u1ea5p (G\u00f3c nh\u00ecn tri\u1ec3n khai th\u1ef1c t\u1ebf)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Khi l\u1eadp k\u1ebf ho\u1ea1ch n\u00e2ng c\u1ea5p m\u1ea1ng, vi\u1ec7c l\u1ef1a ch\u1ecdn gi\u1eefa SFP, SFP+ v\u00e0 SFP28 kh\u00f4ng ch\u1ec9 l\u00e0 quy\u1ebft \u0111\u1ecbnh v\u1ec1 t\u1ed1c \u0111\u1ed9 \u2014 m\u00e0 c\u00f2n l\u00e0 quy\u1ebft \u0111\u1ecbnh ki\u1ebfn tr\u00fac.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>C\u00e1c y\u1ebfu t\u1ed1 c\u1ea7n c\u00e2n nh\u1eafc bao g\u1ed3m:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>Y\u00eau c\u1ea7u m\u1edf r\u1ed9ng m\u1ea1ng<\/strong><\/p>\n<ul class=\"wp-block-list\">\n<li><p>1G \u2192 l\u1edbp truy c\u1eadp (access layer)<\/p><\/li>\n\n\n\n<li><p>10G \u2192 l\u1edbp t\u1eadp h\u1ee3p (aggregation layer)<\/p><\/li>\n\n\n\n<li><p>25G \u2192 ki\u1ebfn tr\u00fac spine\/leaf hi\u1ec7n \u0111\u1ea1i c\u1ee7a trung t\u00e2m d\u1eef li\u1ec7u<\/p><\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><p><strong>\u0110\u1ed9 s\u1eb5n s\u00e0ng c\u1ee7a h\u1ea1 t\u1ea7ng<br><\/strong><\/p>\n<ul class=\"wp-block-list\">\n<li><p>Kh\u1ea3 n\u0103ng c\u1ed5ng switch<\/p><\/li>\n\n\n\n<li><p>B\u0103ng th\u00f4ng backplane<\/p><\/li>\n\n\n\n<li><p>T\u01b0\u01a1ng th\u00edch NIC<\/p><\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><p><strong>C\u00e2n b\u1eb1ng chi ph\u00ed v\u00e0 hi\u1ec7u n\u0103ng<\/strong><\/p>\n<ul class=\"wp-block-list\">\n<li><p>SFP (chi ph\u00ed th\u1ea5p nh\u1ea5t, h\u1ec7 th\u1ed1ng c\u0169)<\/p><\/li>\n\n\n\n<li><p>SFP+ (ph\u1ed5 bi\u1ebfn c\u00e2n b\u1eb1ng)<\/p><\/li>\n\n\n\n<li><p>SFP28 (t\u01b0\u01a1ng lai h\u00f3a, m\u1eadt \u0111\u1ed9 cao)<\/p><\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><p><strong>T\u01b0\u01a1ng th\u00edch h\u1ea1 t\u1ea7ng c\u00e1p quang<\/strong><\/p>\n<ul class=\"wp-block-list\">\n<li><p>H\u1ea1n ch\u1ebf c\u1ee7a h\u1ec7 th\u1ed1ng c\u00e1p quang \u0111a mode (MMF)\/\u0111\u01a1n mode (SMF) hi\u1ec7n h\u1eefu<\/p><\/li>\n\n\n\n<li><p>Y\u00eau c\u1ea7u v\u1ec1 kho\u1ea3ng c\u00e1ch v\u00e0 suy hao<\/p><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1eb7c d\u00f9 vi\u1ec7c hi\u1ec3u r\u00f5 s\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa c\u00e1c th\u1ebf h\u1ec7 gi\u00fap l\u00e0m r\u00f5 l\u1ed9 tr\u00ecnh n\u00e2ng c\u1ea5p, nh\u01b0ng trong th\u1ef1c t\u1ebf tri\u1ec3n khai th\u01b0\u1eddng ph\u00e1t sinh nh\u1eefng gi\u1edbi h\u1ea1n b\u1ea5t ng\u1edd v\u00e0 c\u00e1c th\u00e1ch th\u1ee9c v\u1eadn h\u00e0nh. \u1ede ph\u1ea7n ti\u1ebfp theo, ch\u00fang ta s\u1ebd kh\u00e1m ph\u00e1 c\u00e1c gi\u1edbi h\u1ea1n th\u1ef1c t\u1ebf c\u1ee7a ti\u00eau chu\u1ea9n SFP, d\u1ef1a tr\u00ean c\u00e1c m\u00f4 h\u00ecnh s\u1eed d\u1ee5ng th\u1ef1c t\u1ebf, s\u1ef1 c\u1ed1 tri\u1ec3n khai v\u00e0 c\u00e1c v\u1ea5n \u0111\u1ec1 do ng\u01b0\u1eddi d\u00f9ng b\u00e1o c\u00e1o trong m\u00f4i tr\u01b0\u1eddng doanh nghi\u1ec7p.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\ud83d\udfe1 C\u00e1c gi\u1edbi h\u1ea1n th\u1ef1c t\u1ebf c\u1ee7a ti\u00eau chu\u1ea9n SFP<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1eb7c d\u00f9 ti\u00eau chu\u1ea9n SFP cung c\u1ea5p n\u1ec1n t\u1ea3ng v\u1eadt l\u00fd v\u00e0 \u0111i\u1ec7n h\u1ecdc \u0111\u01b0\u1ee3c \u0111\u1ecbnh ngh\u0129a r\u00f5 r\u00e0ng, nh\u01b0ng c\u00e1c tri\u1ec3n khai th\u1ef1c t\u1ebf th\u01b0\u1eddng ph\u1ea3n \u00e1nh m\u1ed9t th\u1ef1c t\u1ebf kh\u00e1c. Tr\u00ean th\u1ef1c t\u1ebf, k\u1ef9 s\u01b0 v\u00e0 \u0111\u1ed9i ng\u0169 IT th\u01b0\u1eddng g\u1eb7p ph\u1ea3i c\u00e1c s\u1ef1 c\u1ed1 kh\u00f4ng b\u1eaft ngu\u1ed3n t\u1eeb ch\u00ednh module SFP, m\u00e0 do c\u00e1c r\u00e0ng bu\u1ed9c h\u1ec7 sinh th\u00e1i, ch\u00ednh s\u00e1ch firmware v\u00e0 \u0111i\u1ec1u ki\u1ec7n m\u00f4i tr\u01b0\u1eddng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ph\u1ea7n n\u00e0y t\u1ed5ng h\u1ee3p c\u00e1c gi\u1edbi h\u1ea1n th\u1ef1c t\u1ebf ph\u1ed5 bi\u1ebfn nh\u1ea5t d\u1ef1a tr\u00ean kinh nghi\u1ec7m tri\u1ec3n khai v\u00e0 ph\u1ea3n h\u1ed3i r\u1ed9ng r\u00e3i t\u1eeb ng\u01b0\u1eddi d\u00f9ng trong m\u00f4i tr\u01b0\u1eddng doanh nghi\u1ec7p v\u00e0 trung t\u00e2m d\u1eef li\u1ec7u.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/bdd069b5110b48618dea9bdceb273575-1024x576.jpg\" alt=\"Real-World Limitations of the SFP Standard\" class=\"wp-image-2728\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/bdd069b5110b48618dea9bdceb273575-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/bdd069b5110b48618dea9bdceb273575-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/bdd069b5110b48618dea9bdceb273575-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/bdd069b5110b48618dea9bdceb273575-18x10.jpg 18w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/bdd069b5110b48618dea9bdceb273575.jpg 1200w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">C\u00e1c s\u1ef1 c\u1ed1 tri\u1ec3n khai ph\u1ed5 bi\u1ebfn trong m\u1ea1ng th\u1ef1c t\u1ebf<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Ngay c\u1ea3 khi module SFP d\u01b0\u1eddng nh\u01b0 tu\u00e2n th\u1ee7 \u0111\u1ea7y \u0111\u1ee7 ti\u00eau chu\u1ea9n, s\u1ef1 c\u1ed1 v\u1eabn x\u1ea3y ra trong qu\u00e1 tr\u00ecnh l\u1eafp \u0111\u1eb7t. C\u00e1c tr\u01b0\u1eddng h\u1ee3p ph\u1ed5 bi\u1ebfn nh\u1ea5t bao g\u1ed3m:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Module \u0111\u01b0\u1ee3c c\u1eafm \u0111\u00fang c\u00e1ch v\u1ec1 m\u1eb7t v\u1eadt l\u00fd nh\u01b0ng li\u00ean k\u1ebft (link) kh\u00f4ng thi\u1ebft l\u1eadp \u0111\u01b0\u1ee3c<\/p><\/li>\n\n\n\n<li><p>Thi\u1ebft b\u1ecb b\u00e1o l\u1ed7i <strong>\u201ctransceiver kh\u00f4ng \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3\u201d<\/strong><\/p><\/li>\n\n\n\n<li><p>C\u1ed5ng v\u1eabn <strong>b\u1ecb v\u00f4 hi\u1ec7u h\u00f3a ho\u1eb7c b\u1ecb k\u1eb9t \u1edf tr\u1ea1ng th\u00e1i down<\/strong><\/p><\/li>\n\n\n\n<li><p>K\u1ebft n\u1ed1i gi\u00e1n \u0111o\u1ea1n d\u01b0\u1edbi t\u1ea3i<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Nh\u1eefng s\u1ef1 c\u1ed1 n\u00e0y th\u01b0\u1eddng kh\u00f4ng li\u00ean quan \u0111\u1ebfn ph\u1ea7n c\u1ee9ng SFP m\u00e0 do vi\u1ec7c x\u00e1c th\u1ef1c kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch \u1edf c\u1ea5p \u0111\u1ed9 h\u1ec7 th\u1ed1ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Trong nhi\u1ec1u tri\u1ec3n khai doanh nghi\u1ec7p, nguy\u00ean nh\u00e2n g\u1ed1c th\u01b0\u1eddng l\u00e0 s\u1ef1 kh\u00f4ng kh\u1edbp gi\u1eefa:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Nh\u1eadn d\u1ea1ng firmware c\u1ee7a module<\/p><\/li>\n\n\n\n<li><p>C\u01a1 s\u1edf d\u1eef li\u1ec7u t\u01b0\u01a1ng th\u00edch c\u1ee7a switch<\/p><\/li>\n\n\n\n<li><p>T\u1ed1c \u0111\u1ed9 c\u1ed5ng ho\u1eb7c k\u1ef3 v\u1ecdng giao th\u1ee9c \u0111\u00e3 c\u1ea5u h\u00ecnh<\/p><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u201cT\u1ea1i sao SFP c\u1ee7a t\u00f4i kh\u00f4ng ho\u1ea1t \u0111\u1ed9ng?\u201d \u2014 C\u00e1c t\u00ecnh hu\u1ed1ng th\u1ef1c t\u1ebf \u0111i\u1ec3n h\u00ecnh<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u00e2y l\u00e0 m\u1ed9t trong nh\u1eefng c\u00e2u h\u1ecfi v\u1eadn h\u00e0nh \u0111\u01b0\u1ee3c \u0111\u1eb7t ra nhi\u1ec1u nh\u1ea5t trong c\u00e1c c\u1ed9ng \u0111\u1ed3ng m\u1ea1ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>T\u00ecnh hu\u1ed1ng A: T\u01b0\u01a1ng th\u00edch v\u1eadt l\u00fd nh\u01b0ng b\u1ecb t\u1eeb ch\u1ed1i<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Module c\u1eafm \u0111\u00fang v\u1ecb tr\u00ed<\/p><\/li>\n\n\n\n<li><p>Nh\u01b0ng switch hi\u1ec3n th\u1ecb l\u1ed7i kh\u00f4ng kh\u1edbp nh\u00e0 s\u1ea3n xu\u1ea5t<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Nguy\u00ean nh\u00e2n<\/strong>: X\u00e1c th\u1ef1c nh\u00e0 s\u1ea3n xu\u1ea5t d\u1ef1a tr\u00ean EEPROM ho\u1eb7c gi\u1edbi h\u1ea1n danh s\u00e1ch tr\u1eafng (whitelist)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>T\u00ecnh hu\u1ed1ng B: Th\u01b0\u01a1ng l\u01b0\u1ee3ng t\u1ed1c \u0111\u1ed9 sai<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Module SFP 1G \u0111\u01b0\u1ee3c c\u1eafm v\u00e0o c\u1ed5ng SFP+ ch\u1ec9 h\u1ed7 tr\u1ee3 10G<\/p><\/li>\n\n\n\n<li><p>Li\u00ean k\u1ebft v\u1eabn \u1edf tr\u1ea1ng th\u00e1i down ho\u1eb7c kh\u00f4ng \u1ed5n \u0111\u1ecbnh<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Nguy\u00ean nh\u00e2n<\/strong>: Kh\u00f4ng kh\u1edbp t\u00edn hi\u1ec7u \u0111i\u1ec7n ho\u1eb7c ch\u1ee9c n\u0103ng t\u1ef1 th\u01b0\u01a1ng l\u01b0\u1ee3ng b\u1ecb t\u1eaft<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>T\u00ecnh hu\u1ed1ng C: Sai c\u00e1p quang<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><a href=\"https:\/\/www.l-p.com\/products\/476763.htm\" target=\"_self\">Module SMF<\/a> \u0111\u01b0\u1ee3c d\u00f9ng v\u1edbi c\u00e1p MMF<\/p><\/li>\n\n\n\n<li><p>Li\u00ean k\u1ebft cho th\u1ea5y t\u1ed5n hao cao ho\u1eb7c kh\u00f4ng k\u1ebft n\u1ed1i \u0111\u01b0\u1ee3c<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Nguy\u00ean nh\u00e2n<\/strong>: B\u01b0\u1edbc s\u00f3ng v\u00e0 gi\u1edbi h\u1ea1n t\u00e1n s\u1eafc quang h\u1ecdc kh\u00f4ng ph\u00f9 h\u1ee3p<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>T\u00ecnh hu\u1ed1ng D: Kh\u00f4ng \u1ed5n \u0111\u1ecbnh khi d\u00f9ng ch\u00e9o nh\u00e0 s\u1ea3n xu\u1ea5t<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Ho\u1ea1t \u0111\u1ed9ng t\u1ea1m th\u1eddi nh\u01b0ng th\u1ea5t b\u1ea1i khi c\u00f3 l\u01b0u l\u01b0\u1ee3ng<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Nguy\u00ean nh\u00e2n<\/strong>: S\u1ef1 kh\u00e1c bi\u1ec7t v\u1ec1 dung sai firmware gi\u1eefa c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">C\u00e1c r\u00e0ng bu\u1ed9c h\u1ec7 sinh th\u00e1i nh\u00e0 s\u1ea3n xu\u1ea5t (M\u1ed9t trong nh\u1eefng gi\u1edbi h\u1ea1n l\u1edbn nh\u1ea5t)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t trong nh\u1eefng r\u00e0ng bu\u1ed9c th\u1ef1c t\u1ebf \u0111\u00e1ng k\u1ec3 nh\u1ea5t c\u1ee7a ti\u00eau chu\u1ea9n SFP l\u00e0 h\u1ec7 sinh th\u00e1i t\u01b0\u01a1ng th\u00edch do nh\u00e0 s\u1ea3n xu\u1ea5t ki\u1ec3m so\u00e1t.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Nhi\u1ec1u nh\u00e0 cung c\u1ea5p thi\u1ebft b\u1ecb m\u1ea1ng tri\u1ec3n khai:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>X\u00e1c th\u1ef1c transceiver \u0111\u1ed9c quy\u1ec1n<\/p><\/li>\n\n\n\n<li><p>Danh s\u00e1ch module \u0111\u01b0\u1ee3c ph\u00ea duy\u1ec7t<\/p><\/li>\n\n\n\n<li><p>Ch\u1eb7n module quang h\u1ecdc c\u1ee7a b\u00ean th\u1ee9 ba \u1edf c\u1ea5p firmware<\/p><\/li>\n\n\n\n<li><p>Nh\u1eadt k\u00fd c\u1ea3nh b\u00e1o ho\u1eb7c tr\u1ea1ng th\u00e1i h\u1ed7 tr\u1ee3 gi\u1ea3m s\u00fat<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 ngay c\u1ea3 khi m\u1ed9t module ho\u00e0n to\u00e0n tu\u00e2n th\u1ee7 MSA, n\u00f3 v\u1eabn c\u00f3 th\u1ec3:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>B\u1ecb t\u1eeb ch\u1ed1i ngay l\u1eadp t\u1ee9c<\/p><\/li>\n\n\n\n<li><p>B\u1ecb gi\u1edbi h\u1ea1n ch\u1ee9c n\u0103ng<\/p><\/li>\n\n\n\n<li><p>Ho\u1eb7c \u0111\u01b0\u1ee3c ch\u1ea5p nh\u1eadn k\u00e8m c\u1ea3nh b\u00e1o h\u1ec7 th\u1ed1ng li\u00ean t\u1ee5c<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Trong th\u1ef1c t\u1ebf, \u0111i\u1ec1u n\u00e0y t\u1ea1o ra m\u1ed9t h\u1ec7 sinh th\u00e1i b\u00e1n kh\u00e9p k\u00edn \u0111\u01b0\u1ee3c x\u1ebfp l\u1edbp tr\u00ean m\u1ed9t ti\u00eau chu\u1ea9n v\u1eadt l\u00fd m\u1edf.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">C\u00e1c v\u1ea5n \u0111\u1ec1 th\u1ef1c ti\u1ec5n: Nhi\u1ec7t \u0111\u1ed9, Ngu\u1ed3n \u0111i\u1ec7n v\u00e0 H\u00e0nh vi Firmware<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Ngo\u00e0i kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch, c\u00e1c y\u1ebfu t\u1ed1 v\u1eadt l\u00fd v\u00e0 v\u1eadn h\u00e0nh c\u0169ng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn hi\u1ec7u su\u1ea5t SFP trong c\u00e1c tri\u1ec3n khai th\u1ef1c t\u1ebf.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\ud83d\udd25 T\u1ea3n nhi\u1ec7t<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>C\u00e1c switch m\u1eadt \u0111\u1ed9 cao c\u00f3 th\u1ec3 t\u00edch t\u1ee5 nhi\u1ec7t xung quanh c\u00e1c khe c\u1eafm SFP<\/p><\/li>\n\n\n\n<li><p>C\u00e1c module SFP \u0111\u1ed3ng RJ45 sinh nhi\u1ec7t \u0111\u00e1ng k\u1ec3 h\u01a1n so v\u1edbi quang h\u1ecdc s\u1ee3i<\/p><\/li>\n\n\n\n<li><p>Th\u00f4ng gi\u00f3 k\u00e9m c\u00f3 th\u1ec3 l\u00e0m gi\u1ea3m tu\u1ed5i th\u1ecd module<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u26a1 Ti\u00eau th\u1ee5 \u0111i\u1ec7n n\u0103ng<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>C\u00e1c module 10G v\u00e0 25G ti\u00eau th\u1ee5 nhi\u1ec1u \u0111i\u1ec7n n\u0103ng h\u01a1n c\u00e1c module SFP 1G<\/p><\/li>\n\n\n\n<li><p>C\u00e1p DAC v\u00e0 module RJ45 c\u00f3 th\u1ec3 l\u00e0m t\u0103ng t\u1ed5ng t\u1ea3i \u0111i\u1ec7n tr\u00ean m\u1ed7i c\u1ed5ng<\/p><\/li>\n\n\n\n<li><p>Ng\u00e2n s\u00e1ch \u0111i\u1ec7n n\u0103ng tr\u00ean c\u00e1c switch m\u1eadt \u0111\u1ed9 cao c\u00f3 th\u1ec3 tr\u1edf th\u00e0nh y\u1ebfu t\u1ed1 gi\u1edbi h\u1ea1n<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\ud83d\udcbe H\u00e0nh vi Firmware<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>M\u1ed9t s\u1ed1 thi\u1ebft b\u1ecb y\u00eau c\u1ea7u c\u1eadp nh\u1eadt firmware \u0111\u1ec3 h\u1ed7 tr\u1ee3 c\u00e1c b\u1ed9 quang m\u1edbi h\u01a1n<\/p><\/li>\n\n\n\n<li><p>C\u01a1 s\u1edf d\u1eef li\u1ec7u t\u01b0\u01a1ng th\u00edch c\u00f3 th\u1ec3 thay \u0111\u1ed5i sau khi n\u00e2ng c\u1ea5p firmware<\/p><\/li>\n\n\n\n<li><p>C\u00e1c module c\u00f3 th\u1ec3 \u0111\u1ed9t ng\u1ed9t tr\u1edf n\u00ean kh\u00f4ng \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3 sau c\u00e1c b\u1ea3n c\u1eadp nh\u1eadt h\u1ec7 th\u1ed1ng<\/p><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Nh\u1eadn th\u1ee9c c\u1ed1t l\u00f5i: V\u00ec sao \u201cti\u00eau chu\u1ea9n\u201d kh\u00f4ng \u0111\u1ea3m b\u1ea3o t\u00ednh \u1ed5n \u0111\u1ecbnh<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">T\u1eeb kinh nghi\u1ec7m tri\u1ec3n khai th\u1ef1c t\u1ebf, sai l\u1ea7m ph\u1ed5 bi\u1ebfn nh\u1ea5t l\u00e0 gi\u1ea3 \u0111\u1ecbnh r\u1eb1ng:<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">N\u1ebfu m\u1ed9t module tu\u00e2n th\u1ee7 ti\u00eau chu\u1ea9n SFP, th\u00ec n\u00f3 s\u1ebd ho\u1ea1t \u0111\u1ed9ng \u1edf m\u1ecdi n\u01a1i.<\/p>\n<\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\">Tr\u00ean th\u1ef1c t\u1ebf, ho\u1ea1t \u0111\u1ed9ng \u1ed5n \u0111\u1ecbnh ph\u1ee5 thu\u1ed9c v\u00e0o s\u1ef1 k\u1ebft h\u1ee3p c\u1ee7a:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>T\u01b0\u01a1ng th\u00edch ph\u1ea7n c\u1ee9ng (tu\u00e2n th\u1ee7 MSA)<\/p><\/li>\n\n\n\n<li><p>X\u00e1c th\u1ef1c ph\u1ea7n m\u1ec1m (firmware v\u00e0 quy t\u1eafc c\u1ee7a nh\u00e0 s\u1ea3n xu\u1ea5t)<\/p><\/li>\n\n\n\n<li><p>\u0110i\u1ec1u ki\u1ec7n m\u00f4i tr\u01b0\u1eddng (nhi\u1ec7t \u0111\u1ed9, ngu\u1ed3n \u0111i\u1ec7n, c\u00e1p)<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">S\u1ef1 ph\u1ee5 thu\u1ed9c theo t\u1eebng l\u1edbp n\u00e0y l\u00e0 l\u00fd do v\u00ec sao h\u00e0nh vi SFP c\u00f3 th\u1ec3 kh\u00e1c bi\u1ec7t \u0111\u00e1ng k\u1ec3 gi\u1eefa c\u00e1c m\u00f4i tr\u01b0\u1eddng \u2014 ngay c\u1ea3 khi s\u1eed d\u1ee5ng c\u00e1c module gi\u1ed1ng h\u1ec7t nhau.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c hi\u1ec3u r\u00f5 nh\u1eefng h\u1ea1n ch\u1ebf th\u1ef1c t\u1ebf n\u00e0y l\u00e0 \u0111i\u1ec1u thi\u1ebft y\u1ebfu \u0111\u1ec3 \u0111\u01b0a ra quy\u1ebft \u0111\u1ecbnh mua s\u1eafm v\u00e0 tri\u1ec3n khai \u0111\u00fang \u0111\u1eafn. Ti\u1ebfp theo, ch\u00fang ta s\u1ebd chuy\u1ec3n sang h\u01b0\u1edbng d\u1eabn th\u1ef1c ti\u1ec5n v\u1ec1 C\u00e1ch S\u1eed D\u1ee5ng Module SFP Trong M\u1ea1ng, bao g\u1ed3m danh s\u00e1ch ki\u1ec3m tra c\u00f3 c\u1ea5u tr\u00fac nh\u1eb1m tr\u00e1nh r\u1ee7i ro t\u01b0\u01a1ng th\u00edch v\u00e0 th\u1ea5t b\u1ea1i tri\u1ec3n khai.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\ud83d\udfe1 Th\u1ef1c h\u00e0nh t\u1ed1t nh\u1ea5t khi s\u1eed d\u1ee5ng module SFP trong m\u1ea1ng<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1eb7c d\u00f9 <strong>Ti\u00eau chu\u1ea9n SFP<\/strong> cung c\u1ea5p n\u1ec1n t\u1ea3ng v\u1eadt l\u00fd v\u00e0 \u0111i\u1ec7n h\u1ecdc \u0111\u00e1ng tin c\u1eady, nh\u01b0ng hi\u1ec7u su\u1ea5t \u1ed5n \u0111\u1ecbnh trong th\u1ef1c t\u1ebf l\u1ea1i ph\u1ee5 thu\u1ed9c r\u1ea5t l\u1edbn v\u00e0o c\u00e1ch ch\u1ecdn, x\u00e1c th\u1ef1c v\u00e0 v\u1eadn h\u00e0nh module SFP trong m\u00f4i tr\u01b0\u1eddng m\u1ea1ng. Vi\u1ec7c tu\u00e2n th\u1ee7 c\u00e1c th\u1ef1c h\u00e0nh t\u1ed1t nh\u1ea5t c\u00f3 th\u1ec3 gi\u1ea3m \u0111\u00e1ng k\u1ec3 c\u00e1c v\u1ea5n \u0111\u1ec1 t\u01b0\u01a1ng th\u00edch, c\u1ea3i thi\u1ec7n th\u1eddi gian ho\u1ea1t \u0111\u1ed9ng v\u00e0 k\u00e9o d\u00e0i tu\u1ed5i th\u1ecd module.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/a51d2ad602824593b9e995b8eadd839a-1024x576.jpg\" alt=\"Best Practices for Using SFP Modules in Networks\" class=\"wp-image-2729\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/a51d2ad602824593b9e995b8eadd839a-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/a51d2ad602824593b9e995b8eadd839a-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/a51d2ad602824593b9e995b8eadd839a-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/a51d2ad602824593b9e995b8eadd839a-18x10.jpg 18w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/a51d2ad602824593b9e995b8eadd839a.jpg 1200w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Ki\u1ec3m tra Firmware v\u00e0 T\u01b0\u01a1ng th\u00edch<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Tr\u01b0\u1edbc khi tri\u1ec3n khai b\u1ea5t k\u1ef3 module SFP n\u00e0o, \u0111i\u1ec1u c\u1ea7n thi\u1ebft l\u00e0 ph\u1ea3i x\u00e1c minh c\u1ea3 <strong>t\u01b0\u01a1ng th\u00edch ph\u1ea7n c\u1ee9ng v\u00e0 firmware<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c b\u01b0\u1edbc ch\u00ednh bao g\u1ed3m:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>X\u00e1c nh\u1eadn firmware c\u1ee7a switch\/router h\u1ed7 tr\u1ee3 lo\u1ea1i module SFP c\u1ee5 th\u1ec3<\/p><\/li>\n\n\n\n<li><p>Ki\u1ec3m tra danh s\u00e1ch t\u01b0\u01a1ng th\u00edch c\u1ee7a nh\u00e0 s\u1ea3n xu\u1ea5t ho\u1eb7c ma tr\u1eadn ph\u00ea duy\u1ec7t transceiver<\/p><\/li>\n\n\n\n<li><p>\u0110\u1ea3m b\u1ea3o thi\u1ebft b\u1ecb nh\u1eadn di\u1ec7n \u0111\u01b0\u1ee3c c\u00e1c b\u1ed9 quang b\u00ean th\u1ee9 ba ho\u1eb7c t\u01b0\u01a1ng th\u00edch (n\u1ebfu s\u1eed d\u1ee5ng)<\/p><\/li>\n\n\n\n<li><p>C\u1eadp nh\u1eadt firmware khi c\u1ea7n thi\u1ebft \u0111\u1ec3 k\u00edch ho\u1ea1t h\u1ed7 tr\u1ee3 transceiver m\u1edbi h\u01a1n<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Nhi\u1ec1u s\u1ef1 c\u1ed1 tri\u1ec3n khai \u0111\u01b0\u1ee3c g\u1eafn nh\u00e3n l\u00e0 \u201ch\u1ecfng SFP\u201d th\u1ef1c ch\u1ea5t l\u1ea1i do <strong>firmware l\u1ed7i th\u1eddi ho\u1eb7c c\u00e1c quy t\u1eafc x\u00e1c th\u1ef1c nghi\u00eam ng\u1eb7t c\u1ee7a nh\u00e0 s\u1ea3n xu\u1ea5t<\/strong>, ch\u1ee9 kh\u00f4ng ph\u1ea3i l\u1ed7i ph\u1ea7n c\u1ee9ng.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Tr\u00e1nh qu\u00e1 nhi\u1ec7t (\u0111\u1eb7c bi\u1ec7t v\u1edbi module SFP RJ45)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Qu\u1ea3n l\u00fd nhi\u1ec7t l\u00e0 y\u1ebfu t\u1ed1 then ch\u1ed1t nh\u01b0ng th\u01b0\u1eddng b\u1ecb b\u1ecf qua trong tri\u1ec3n khai SFP.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c y\u1ebfu t\u1ed1 c\u1ea7n c\u00e2n nh\u1eafc:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>C\u00e1c module SFP \u0111\u1ed3ng RJ45 sinh nhi\u1ec7t \u0111\u00e1ng k\u1ec3 h\u01a1n so v\u1edbi module quang h\u1ecdc s\u1ee3i<\/p><\/li>\n\n\n\n<li><p>C\u00e1c switch m\u1eadt \u0111\u1ed9 cao c\u00f3 th\u1ec3 g\u00e2y t\u00edch t\u1ee5 nhi\u1ec7t xung quanh c\u00e1c c\u1ed5ng li\u1ec1n k\u1ec1<\/p><\/li>\n\n\n\n<li><p>L\u01b0u l\u01b0\u1ee3ng kh\u00ed kh\u00f4ng \u0111\u1ee7 c\u00f3 th\u1ec3 l\u00e0m gi\u1ea3m hi\u1ec7u su\u1ea5t v\u00e0 tu\u1ed5i th\u1ecd module<\/p><\/li>\n\n\n\n<li><p>Nhi\u1ec7t \u0111\u1ed9 t\u0103ng cao c\u00f3 th\u1ec3 k\u00edch ho\u1ea1t <strong>m\u1ea5t \u1ed5n \u0111\u1ecbnh \u0111\u01b0\u1eddng truy\u1ec1n ho\u1eb7c t\u1eaft t\u1ef1 \u0111\u1ed9ng<\/strong><\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c th\u1ef1c h\u00e0nh t\u1ed1t nh\u1ea5t:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Tr\u00e1nh t\u1eadp trung nhi\u1ec1u module SFP RJ45 c\u00f4ng su\u1ea5t cao c\u1ea1nh nhau<\/p><\/li>\n\n\n\n<li><p>\u0110\u1ea3m b\u1ea3o th\u00f4ng gi\u00f3 gi\u00e1 rack \u0111\u1ea7y \u0111\u1ee7 v\u00e0 h\u01b0\u1edbng lu\u1ed3ng kh\u00ed ph\u00f9 h\u1ee3p<\/p><\/li>\n\n\n\n<li><p>Gi\u00e1m s\u00e1t nhi\u1ec7t \u0111\u1ed9 module b\u1eb1ng DOM (n\u1ebfu \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3)<\/p><\/li>\n\n\n\n<li><p>\u01afu ti\u00ean s\u1eed d\u1ee5ng quang h\u1ecdc s\u1ee3i trong c\u00e1c m\u00f4i tr\u01b0\u1eddng m\u1eadt \u0111\u1ed9 cao ho\u1eb7c t\u1ed1c \u0111\u1ed9 cao khi c\u00f3 th\u1ec3<\/p><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Ki\u1ec3m tra tr\u01b0\u1edbc khi tri\u1ec3n khai to\u00e0n b\u1ed9<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Ki\u1ec3m tra tr\u01b0\u1edbc tri\u1ec3n khai l\u00e0 b\u01b0\u1edbc then ch\u1ed1t nh\u1eb1m ng\u0103n ng\u1eeba s\u1ef1 c\u1ed1 m\u1ea1ng quy m\u00f4 l\u1edbn.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Quy tr\u00ecnh ki\u1ec3m tra \u0111\u1ec1 xu\u1ea5t:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>X\u00e1c th\u1ef1c vi\u1ec7c thi\u1ebft l\u1eadp \u0111\u01b0\u1eddng truy\u1ec1n trong m\u00f4i tr\u01b0\u1eddng ki\u1ec3m so\u00e1t<\/p><\/li>\n\n\n\n<li><p>Th\u1ef1c hi\u1ec7n ki\u1ec3m tra th\u00f4ng l\u01b0\u1ee3ng d\u01b0\u1edbi \u0111i\u1ec1u ki\u1ec7n l\u01b0u l\u01b0\u1ee3ng th\u1ef1c t\u1ebf<\/p><\/li>\n\n\n\n<li><p>Ki\u1ec3m tra t\u00ednh t\u01b0\u01a1ng th\u00edch \u1edf c\u1ea3 hai \u0111\u1ea7u k\u1ebft n\u1ed1i<\/p><\/li>\n\n\n\n<li><p>Gi\u00e1m s\u00e1t m\u1ee9c c\u00f4ng su\u1ea5t quang, nhi\u1ec7t \u0111\u1ed9 v\u00e0 t\u1ef7 l\u1ec7 l\u1ed7i<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t giai \u0111o\u1ea1n x\u00e1c th\u1ef1c ng\u1eafn c\u00f3 th\u1ec3 ng\u0103n ng\u1eeba th\u1eddi gian ng\u1eebng ho\u1ea1t \u0111\u1ed9ng t\u1ed1n k\u00e9m trong m\u1ea1ng s\u1ea3n xu\u1ea5t, \u0111\u1eb7c bi\u1ec7t trong c\u00e1c tri\u1ec3n khai \u0111a nh\u00e0 s\u1ea3n xu\u1ea5t.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Chi\u1ebfn l\u01b0\u1ee3c l\u1ef1a ch\u1ecdn nh\u00e0 cung c\u1ea5p<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c ch\u1ecdn nh\u00e0 cung c\u1ea5p ph\u00f9 h\u1ee3p quan tr\u1ecdng ngang b\u1eb1ng vi\u1ec7c ch\u1ecdn th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt module ch\u00ednh x\u00e1c.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c ti\u00eau ch\u00ed \u0111\u00e1nh gi\u00e1 ch\u00ednh bao g\u1ed3m:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch \u0111\u00e3 \u0111\u01b0\u1ee3c ch\u1ee9ng minh v\u1edbi c\u00e1c th\u01b0\u01a1ng hi\u1ec7u switch h\u00e0ng \u0111\u1ea7u<\/p><\/li>\n\n\n\n<li><p>Tu\u00e2n th\u1ee7 ti\u00eau chu\u1ea9n MSA (\u0111\u1ea3m b\u1ea3o kh\u1ea3 n\u0103ng t\u01b0\u01a1ng t\u00e1c c\u01a1 b\u1ea3n)<\/p><\/li>\n\n\n\n<li><p>Quy tr\u00ecnh ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng v\u00e0 ki\u1ec3m tra<\/p><\/li>\n\n\n\n<li><p>Kh\u1ea3 n\u0103ng cung c\u1ea5p h\u1ed7 tr\u1ee3 k\u1ef9 thu\u1eadt v\u00e0 t\u00e0i li\u1ec7u<\/p><\/li>\n\n\n\n<li><p>\u0110\u1ed9 nh\u1ea5t qu\u00e1n gi\u1eefa c\u00e1c l\u00f4 s\u1ea3n ph\u1ea9m<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t chi\u1ebfn l\u01b0\u1ee3c nh\u00e0 cung c\u1ea5p m\u1ea1nh gi\u00fap gi\u1ea3m thi\u1ec3u r\u1ee7i ro li\u00ean quan \u0111\u1ebfn:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Kh\u00f4ng t\u01b0\u01a1ng th\u00edch firmware<\/p><\/li>\n\n\n\n<li><p>V\u1ea5n \u0111\u1ec1 kh\u00f4ng kh\u1edbp EEPROM<\/p><\/li>\n\n\n\n<li><p>Hi\u1ec7u su\u1ea5t quang kh\u00f4ng \u1ed5n \u0111\u1ecbnh<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Trong th\u1ef1c t\u1ebf, c\u00e1c doanh nghi\u1ec7p th\u01b0\u1eddng c\u00e2n b\u1eb1ng <strong>hi\u1ec7u qu\u1ea3 chi ph\u00ed v\u1edbi \u0111\u1ed9 tin c\u1eady t\u01b0\u01a1ng th\u00edch<\/strong> b\u1eb1ng c\u00e1ch l\u1ef1a ch\u1ecdn c\u00e1c transceiver t\u01b0\u01a1ng th\u00edch b\u00ean th\u1ee9 ba \u0111\u00e3 \u0111\u01b0\u1ee3c ki\u1ec3m th\u1eed t\u1eeb c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t uy t\u00edn.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">B\u1eb1ng c\u00e1ch tu\u00e2n th\u1ee7 c\u00e1c th\u1ef1c h\u00e0nh t\u1ed1t nh\u1ea5t n\u00e0y, k\u1ef9 s\u01b0 m\u1ea1ng c\u00f3 th\u1ec3 gi\u1ea3m \u0111\u00e1ng k\u1ec3 r\u1ee7i ro tri\u1ec3n khai v\u00e0 \u0111\u1ea3m b\u1ea3o hi\u1ec7u su\u1ea5t d\u1ef1 b\u00e1o \u0111\u01b0\u1ee3c h\u01a1n tr\u00ean c\u00e1c h\u1ea1 t\u1ea7ng d\u1ef1a tr\u00ean SFP. \u0110\u00e2y l\u00e0 ph\u1ea7n k\u1ebft th\u00fac c\u1ee7a to\u00e0n b\u1ed9 khu\u00f4n kh\u1ed5 hi\u1ec3u bi\u1ebft, \u0111\u00e1nh gi\u00e1 v\u00e0 tri\u1ec3n khai an to\u00e0n module SFP trong m\u1ea1ng hi\u1ec7n \u0111\u1ea1i.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\ud83d\udfe1 K\u1ebft lu\u1eadn \u2014 Hi\u1ec3u r\u00f5 Ti\u00eau chu\u1ea9n SFP \u0111\u1ec3 Tri\u1ec3n khai An to\u00e0n<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The <strong>Ti\u00eau chu\u1ea9n SFP<\/strong> l\u00e0 m\u1ed9t trong nh\u1eefng n\u1ec1n t\u1ea3ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i nh\u1ea5t trong m\u1ea1ng hi\u1ec7n \u0111\u1ea1i, cho ph\u00e9p k\u1ebft n\u1ed1i linh ho\u1ea1t, m\u00f4-\u0111un h\u00f3a tr\u00ean c\u00e1c switch doanh nghi\u1ec7p, trung t\u00e2m d\u1eef li\u1ec7u v\u00e0 h\u1ea1 t\u1ea7ng vi\u1ec5n th\u00f4ng. Tuy nhi\u00ean, nh\u01b0 b\u00e0i vi\u1ebft n\u00e0y \u0111\u00e3 ch\u1ec9 ra, thu\u1eadt ng\u1eef \u201cti\u00eau chu\u1ea9n\u201d kh\u00f4ng n\u00ean \u0111\u01b0\u1ee3c hi\u1ec3u l\u00e0 kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch \u201cc\u1eafm v\u00e0o l\u00e0 ch\u1ea1y\u201d tr\u00ean to\u00e0n h\u1ec7 th\u1ed1ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Thay v\u00e0o \u0111\u00f3, SFP \u0111\u1ea1i di\u1ec7n cho m\u1ed9t <strong>khung ph\u1ea7n c\u1ee9ng c\u00f3 c\u1ea5u tr\u00fac \u0111\u01b0\u1ee3c \u0111\u1ecbnh ngh\u0129a b\u1edfi MSA<\/strong>, trong \u0111\u00f3 kh\u1ea3 n\u0103ng t\u01b0\u01a1ng t\u00e1c th\u1ef1c s\u1ef1 ph\u1ee5 thu\u1ed9c v\u00e0o s\u1ef1 k\u1ebft h\u1ee3p c\u1ee7a c\u00e1c th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt, ch\u00ednh s\u00e1ch nh\u00e0 cung c\u1ea5p v\u00e0 \u0111i\u1ec1u ki\u1ec7n tri\u1ec3n khai th\u1ef1c t\u1ebf.<\/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\/7fc2da8552c74c208e960fdba8a6a71a.jpg\" alt=\"Understanding the SFP Standard for Safe Deployment\" class=\"wp-image-2730\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/7fc2da8552c74c208e960fdba8a6a71a.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/7fc2da8552c74c208e960fdba8a6a71a-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/7fc2da8552c74c208e960fdba8a6a71a-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/7fc2da8552c74c208e960fdba8a6a71a-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/7fc2da8552c74c208e960fdba8a6a71a-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Nh\u1eefng \u0111i\u1ec3m c\u1ea7n ghi nh\u1edb ch\u00ednh<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">T\u00f3m t\u1eaft nh\u1eefng th\u00f4ng tin quan tr\u1ecdng nh\u1ea5t:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Ti\u00eau chu\u1ea9n SFP x\u00e1c \u0111\u1ecbnh <strong>y\u1ebfu t\u1ed1 h\u00ecnh d\u1ea1ng v\u1eadt l\u00fd v\u00e0 giao di\u1ec7n \u0111i\u1ec7n c\u01a1 b\u1ea3n<\/strong>, ch\u1ee9 kh\u00f4ng ph\u1ea3i kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch \u0111\u1ea7y \u0111\u1ee7<\/p><\/li>\n\n\n\n<li><p>Kh\u1ea3 n\u0103ng t\u01b0\u01a1ng t\u00e1c th\u1ef1c t\u1ebf ph\u1ee5 thu\u1ed9c v\u00e0o <strong>firmware nh\u00e0 cung c\u1ea5p, t\u1ed1c \u0111\u1ed9 v\u00e0 c\u00e1c th\u00f4ng s\u1ed1 quang h\u1ecdc<\/strong><\/p><\/li>\n\n\n\n<li><p>SFP, SFP+ v\u00e0 SFP28 c\u00f3 h\u00ecnh d\u1ea1ng t\u01b0\u01a1ng t\u1ef1 nhau nh\u01b0ng kh\u00e1c bi\u1ec7t \u0111\u00e1ng k\u1ec3 v\u1ec1 <strong>hi\u1ec7u n\u0103ng \u0111i\u1ec7n v\u00e0 t\u00edn hi\u1ec7u<\/strong><\/p><\/li>\n\n\n\n<li><p>Nhi\u1ec1u v\u1ea5n \u0111\u1ec1 tri\u1ec3n khai b\u1eaft ngu\u1ed3n t\u1eeb <strong>c\u00e1c h\u1ea1n ch\u1ebf c\u1ee7a h\u1ec7 sinh th\u00e1i, ch\u1ee9 kh\u00f4ng ph\u1ea3i do l\u1ed7i ph\u1ea7n c\u1ee9ng<\/strong><\/p><\/li>\n\n\n\n<li><p>\u201cTu\u00e2n th\u1ee7 ti\u00eau chu\u1ea9n\u201d kh\u00f4ng lu\u00f4n lu\u00f4n c\u00f3 ngh\u0129a l\u00e0 <strong>\u201cho\u1ea1t \u0111\u1ed9ng tr\u00ean m\u1ecdi switch\u201d<\/strong><\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Nh\u1eadn th\u1ee9c c\u1ed1t l\u00f5i:<\/strong><\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">SFP \u0111\u01b0\u1ee3c chu\u1ea9n h\u00f3a v\u1ec1 thi\u1ebft k\u1ebf, nh\u01b0ng mang t\u00ednh \u0111i\u1ec1u ki\u1ec7n trong v\u1eadn h\u00e0nh.<\/p>\n<\/blockquote>\n\n\n\n<h3 class=\"wp-block-heading\">Khung ra quy\u1ebft \u0111\u1ecbnh \u0111\u1ec3 tri\u1ec3n khai SFP an to\u00e0n<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Khi l\u1ef1a ch\u1ecdn ho\u1eb7c tri\u1ec3n khai module SFP, m\u1ed9t quy tr\u00ecnh ra quy\u1ebft \u0111\u1ecbnh c\u00f3 c\u1ea5u tr\u00fac s\u1ebd gi\u00fap tr\u00e1nh h\u1ea7u h\u1ebft c\u00e1c v\u1ea5n \u0111\u1ec1 t\u01b0\u01a1ng th\u00edch:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>B\u01b0\u1edbc 1: X\u00e1c \u0111\u1ecbnh kh\u1ea3 n\u0103ng c\u1ed5ng<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>X\u00e1c nh\u1eadn c\u1ed5ng c\u00f3 h\u1ed7 tr\u1ee3 SFP, SFP+ hay SFP28 hay kh\u00f4ng<\/p><\/li>\n\n\n\n<li><p>Ki\u1ec3m tra xem ch\u1ee9c n\u0103ng h\u1ed7 tr\u1ee3 \u0111a t\u1ed1c \u0111\u1ed9 (1G\/10G\/25G) \u0111\u00e3 \u0111\u01b0\u1ee3c k\u00edch ho\u1ea1t ch\u01b0a<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>B\u01b0\u1edbc 2: Ph\u00f9 h\u1ee3p y\u00eau c\u1ea7u quang h\u1ecdc<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>\u0110\u1ea3m b\u1ea3o lo\u1ea1i s\u1ee3i quang \u0111\u00fang (SMF so v\u1edbi MMF)<\/p><\/li>\n\n\n\n<li><p>Ph\u00f9 h\u1ee3p b\u01b0\u1edbc s\u00f3ng v\u00e0 kho\u1ea3ng c\u00e1ch truy\u1ec1n d\u1eabn<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>B\u01b0\u1edbc 3: X\u00e1c minh t\u00ednh t\u01b0\u01a1ng th\u00edch v\u1edbi nh\u00e0 cung c\u1ea5p<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Ki\u1ec3m tra danh s\u00e1ch t\u01b0\u01a1ng th\u00edch v\u1edbi switch ho\u1eb7c router<\/p><\/li>\n\n\n\n<li><p>X\u00e1c \u0111\u1ecbnh xem thi\u1ebft b\u1ecb quang h\u1ecdc b\u00ean th\u1ee9 ba c\u00f3 \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3 hay kh\u00f4ng<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>B\u01b0\u1edbc 4: X\u00e1c th\u1ef1c c\u1ea5u h\u00ecnh t\u1ed1c \u0111\u1ed9<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>\u0110\u1ea3m b\u1ea3o c\u1ea3 hai \u0111\u1ea7u \u0111\u1ec1u ho\u1ea1t \u0111\u1ed9ng \u1edf c\u00f9ng t\u1ed1c \u0111\u1ed9 d\u1eef li\u1ec7u<\/p><\/li>\n\n\n\n<li><p>V\u00f4 hi\u1ec7u h\u00f3a ho\u1eb7c k\u00edch ho\u1ea1t ch\u1ee9c n\u0103ng t\u1ef1 th\u01b0\u01a1ng l\u01b0\u1ee3ng (auto-negotiation) khi c\u1ea7n thi\u1ebft<\/p><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Danh s\u00e1ch ki\u1ec3m tra gi\u1ea3m r\u1ee7i ro<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Tr\u01b0\u1edbc khi tri\u1ec3n khai module SFP trong m\u00f4i tr\u01b0\u1eddng s\u1ea3n xu\u1ea5t, h\u00e3y s\u1eed d\u1ee5ng danh s\u00e1ch ki\u1ec3m tra n\u00e0y:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>\u2714 X\u00e1c nh\u1eadn module tu\u00e2n th\u1ee7 MSA<\/p><\/li>\n\n\n\n<li><p>\u2714 Ph\u00f9 h\u1ee3p t\u1ed1c \u0111\u1ed9 (1G \/ 10G \/ 25G) v\u1edbi kh\u1ea3 n\u0103ng c\u1ed5ng ch\u1ee7<\/p><\/li>\n\n\n\n<li><p>\u2714 X\u00e1c minh s\u1ef1 ph\u00f9 h\u1ee3p v\u1ec1 lo\u1ea1i s\u1ee3i quang v\u00e0 b\u01b0\u1edbc s\u00f3ng<\/p><\/li>\n\n\n\n<li><p>\u2714 Ki\u1ec3m tra c\u00e1c h\u1ea1n ch\u1ebf v\u1ec1 t\u00ednh t\u01b0\u01a1ng th\u00edch c\u1ee7a nh\u00e0 cung c\u1ea5p<\/p><\/li>\n\n\n\n<li><p>\u2714 \u0110\u1ea3m b\u1ea3o firmware h\u1ed7 tr\u1ee3 lo\u1ea1i module n\u00e0y<\/p><\/li>\n\n\n\n<li><p>\u2714 Ki\u1ec3m tra \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh li\u00ean k\u1ebft tr\u01b0\u1edbc khi tri\u1ec3n khai \u0111\u1ea7y \u0111\u1ee7<\/p><\/li>\n\n\n\n<li><p>\u2714 Gi\u00e1m s\u00e1t nhi\u1ec7t \u0111\u1ed9 v\u00e0 m\u1ee9c ti\u00eau th\u1ee5 \u0111i\u1ec7n n\u0103ng trong c\u00e1c m\u00f4i tr\u01b0\u1eddng m\u1eadt \u0111\u1ed9 cao<\/p><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Nh\u1eadn th\u1ee9c cu\u1ed1i c\u00f9ng: X\u00e2y d\u1ef1ng m\u1ea1ng SFP \u0111\u00e1ng tin c\u1eady<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Trong thi\u1ebft k\u1ebf m\u1ea1ng hi\u1ec7n \u0111\u1ea1i, \u0111\u1ed9 tin c\u1eady kh\u00f4ng ch\u1ec9 do ti\u00eau chu\u1ea9n SFP quy\u1ebft \u0111\u1ecbnh, m\u00e0 c\u00f2n b\u1edfi <strong>m\u1ee9c \u0111\u1ed9 \u0111\u1ed3ng b\u1ed9 h\u00f3a to\u00e0n b\u1ed9 h\u1ec7 th\u1ed1ng \u2014 ph\u1ea7n c\u1ee9ng, firmware v\u00e0 h\u1ea1 t\u1ea7ng quang h\u1ecdc ho\u1ea1t \u0111\u1ed9ng \u0103n kh\u1edbp v\u1edbi nhau<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c t\u1ed5 ch\u1ee9c coi vi\u1ec7c l\u1ef1a ch\u1ecdn SFP nh\u01b0 m\u1ed9t quy\u1ebft \u0111\u1ecbnh chi\u1ebfn l\u01b0\u1ee3c thay v\u00ec ch\u1ec9 \u0111\u01a1n thu\u1ea7n thay th\u1ebf ph\u1ea7n c\u1ee9ng s\u1ebd \u0111\u1ea1t \u0111\u01b0\u1ee3c:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>\u00cdt s\u1ef1 c\u1ed1 m\u1ea1ng h\u01a1n<\/p><\/li>\n\n\n\n<li><p>Chi ph\u00ed kh\u1eafc ph\u1ee5c s\u1ef1 c\u1ed1 th\u1ea5p h\u01a1n<\/p><\/li>\n\n\n\n<li><p>Kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng d\u00e0i h\u1ea1n cao h\u01a1n<\/p><\/li>\n\n\n\n<li><p>Hi\u1ec7u n\u0103ng d\u1ef1 b\u00e1o \u0111\u01b0\u1ee3c t\u1ed1t h\u01a1n gi\u1eefa c\u00e1c nh\u00e0 cung c\u1ea5p<\/p><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Gi\u1ea3i ph\u00e1p SFP \u0111\u00e1ng tin c\u1eady<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed1i v\u1edbi k\u1ef9 s\u01b0 m\u1ea1ng v\u00e0 \u0111\u1ed9i ng\u0169 mua h\u00e0ng \u0111ang t\u00ecm ki\u1ebfm <strong>c\u00e1c module SFP \u1ed5n \u0111\u1ecbnh, \u0111\u00e3 \u0111\u01b0\u1ee3c ki\u1ec3m th\u1eed v\u00e0 s\u1eb5n s\u00e0ng tri\u1ec3n khai trong m\u00f4i tr\u01b0\u1eddng s\u1ea3n xu\u1ea5t<\/strong>, vi\u1ec7c l\u1ef1a ch\u1ecdn nh\u00e0 cung c\u1ea5p \u0111\u00e1ng tin c\u1eady l\u00e0 y\u1ebfu t\u1ed1 then ch\u1ed1t nh\u1eb1m gi\u1ea3m thi\u1ec3u r\u1ee7i ro t\u01b0\u01a1ng th\u00edch.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ud83d\udc49 Kh\u00e1m ph\u00e1 c\u00e1c b\u1ed9 thu ph\u00e1t t\u01b0\u01a1ng th\u00edch ch\u1ea5t l\u01b0\u1ee3ng cao, \u0111\u00e3 \u0111\u01b0\u1ee3c ki\u1ec3m th\u1eed \u0111\u1ea7y \u0111\u1ee7 t\u1ea1i<br><strong>C\u1eeda h\u00e0ng Ch\u00ednh th\u1ee9c LINK-PP<\/strong>, \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 h\u1ed7 tr\u1ee3 hi\u1ec7u n\u0103ng m\u1ea1ng doanh nghi\u1ec7p trong khi v\u1eabn duy tr\u00ec kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch \u0111a n\u1ec1n t\u1ea3ng m\u1ea1nh m\u1ebd v\u00e0 hi\u1ec7u qu\u1ea3 chi ph\u00ed.<\/p>","protected":false},"excerpt":{"rendered":"<p>H\u1ecdc th\u1eadt s\u1ef1 hi\u1ec3u ngh\u0129a c\u1ee7a chu\u1ea9n SFP, bao g\u1ed3m c\u00e1c quy \u0111\u1ecbnh, quy \u0111\u1ecbnh t\u01b0\u01a1ng th\u00edch v\u00e0 gi\u1edbi h\u1ea1n th\u1ef1c t\u1ebf. Gi\u1eef cho nh\u1eefng sai l\u1ea7m t\u1ed1n k\u00e9m khi ch\u1ecdn module SFP.<\/p>","protected":false},"author":1,"featured_media":2731,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[26],"class_list":["post-2732","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\/2732","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=2732"}],"version-history":[{"count":4,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/2732\/revisions"}],"predecessor-version":[{"id":10730,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/2732\/revisions\/10730"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/media\/2731"}],"wp:attachment":[{"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/media?parent=2732"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/categories?post=2732"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/tags?post=2732"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}