{"id":2458,"date":"2026-04-13T00:00:00","date_gmt":"2026-04-13T00:00:00","guid":{"rendered":"https:\/\/lp.szlogic.cn\/products\/gigabit-sfp-transceiver-guide\/"},"modified":"2026-06-22T03:34:24","modified_gmt":"2026-06-22T03:34:24","slug":"gigabit-sfp-transceiver-guide","status":"publish","type":"post","link":"https:\/\/resourceslp.szlogic.cn\/vi\/products\/gigabit-sfp-transceiver-guide","title":{"rendered":"Gigabit SFP l\u00e0 g\u00ec: C\u00e1c lo\u1ea1i, kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch v\u00e0 thi\u1ebft l\u1eadp"},"content":{"rendered":"<figure class=\"wp-block-image aligncenter size-large\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1200\" height=\"628\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/5431c789b8ed4994b4d9a9fd66777827.jpg\" alt=\"What is Gigabit SFP: Types, Compatibility, and Setup\" class=\"wp-image-2449\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/5431c789b8ed4994b4d9a9fd66777827.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/5431c789b8ed4994b4d9a9fd66777827-300x157.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/5431c789b8ed4994b4d9a9fd66777827-1024x536.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/5431c789b8ed4994b4d9a9fd66777827-768x402.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/5431c789b8ed4994b4d9a9fd66777827-18x9.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Trong c\u00e1c m\u1ea1ng Ethernet v\u00e0 s\u1ee3i quang hi\u1ec7n \u0111\u1ea1i, b\u1ed9 <a target=\"_self\" href=\"https:\/\/www.l-p.com\/store-26155-1g-sfp.htm\">SFP Gigabit<\/a><strong> <\/strong>\u0111\u00f3ng vai tr\u00f2 then ch\u1ed1t trong vi\u1ec7c h\u1ed7 tr\u1ee3 kh\u1ea3 n\u0103ng k\u1ebft n\u1ed1i linh ho\u1ea1t v\u00e0 hi\u1ec7u n\u0103ng cao gi\u1eefa c\u00e1c switch, router, m\u00e1y ch\u1ee7 v\u00e0 b\u1ed9 chuy\u1ec3n \u0111\u1ed5i ph\u01b0\u01a1ng ti\u1ec7n. Khi c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng m\u1ea1ng ti\u1ebfp t\u1ee5c ph\u00e1t tri\u1ec3n h\u01b0\u1edbng t\u1edbi b\u0103ng th\u00f4ng cao h\u01a1n v\u00e0 thi\u1ebft k\u1ebf m\u00f4-\u0111un, c\u00f4ng ngh\u1ec7 SFP (<a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/sfp-small-form-factor-pluggable-transceiver-guide\/\">Typical Medium<\/a>) v\u1eabn l\u00e0 m\u1ed9t trong nh\u1eefng gi\u1ea3i ph\u00e1p \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng r\u1ed9ng r\u00e3i nh\u1ea5t v\u00e0 hi\u1ec7u qu\u1ea3 v\u1ec1 chi ph\u00ed nh\u1ea5t cho vi\u1ec7c truy\u1ec1n d\u1eef li\u1ec7u \u1edf t\u1ed1c \u0111\u1ed9 1 Gbps.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">B\u1ed9 thu ph\u00e1t SFP Gigabit l\u00e0 m\u1ed9t m\u00f4-\u0111un quang ho\u1eb7c \u0111\u1ed3ng c\u00f3 th\u1ec3 thay th\u1ebf n\u00f3ng, \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 h\u1ed7 tr\u1ee3 c\u00e1c chu\u1ea9n 1000BASE-SX, 1000BASE-LX\/LH v\u00e0 1000BASE-T, cho ph\u00e9p t\u00edch h\u1ee3p li\u1ec1n m\u1ea1ch tr\u00ean c\u1ea3 m\u00f4i tr\u01b0\u1eddng s\u1ee3i quang v\u00e0 Ethernet. M\u1eb7c d\u00f9 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng ph\u1ed5 bi\u1ebfn, nhi\u1ec1u k\u1ef9 s\u01b0 v\u00e0 ng\u01b0\u1eddi mua IT v\u1eabn g\u1eb7p ph\u1ea3i c\u00e1c th\u00e1ch th\u1ee9c li\u00ean quan \u0111\u1ebfn <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/how-to-test-sfp-compatibility\/\">t\u01b0\u01a1ng th\u00edch<\/a>, kh\u1edbp c\u1ed5ng v\u00e0 c\u1ea5u h\u00ecnh thi\u1ebft l\u1eadp, \u0111\u1eb7c bi\u1ec7t khi tri\u1ec3n khai thi\u1ebft b\u1ecb t\u1eeb nhi\u1ec1u nh\u00e0 cung c\u1ea5p kh\u00e1c nhau ho\u1eb7c n\u00e2ng c\u1ea5p m\u1ea1ng k\u1ebf th\u1eeba.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">H\u01b0\u1edbng d\u1eabn n\u00e0y \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf nh\u1eb1m gi\u00fap b\u1ea1n hi\u1ec3u \u0111\u1ea7y \u0111\u1ee7 c\u00e1ch th\u1ee9c ho\u1ea1t \u0111\u1ed9ng c\u1ee7a <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/488474.htm\">b\u1ed9 thu ph\u00e1t SFP Gigabit <\/a>, c\u00e1ch l\u1ef1a ch\u1ecdn lo\u1ea1i ph\u00f9 h\u1ee3p cho \u1ee9ng d\u1ee5ng c\u1ee7a b\u1ea1n v\u00e0 c\u00e1ch tr\u00e1nh c\u00e1c v\u1ea5n \u0111\u1ec1 tri\u1ec3n khai ph\u1ed5 bi\u1ebfn c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn l\u1ed7i k\u1ebft n\u1ed1i ho\u1eb7c ngh\u1ebdn hi\u1ec7u n\u0103ng. B\u1ea1n c\u0169ng s\u1ebd h\u1ecdc c\u00e1ch \u0111\u00e1nh gi\u00e1 t\u00ednh t\u01b0\u01a1ng th\u00edch gi\u1eefa c\u00e1c c\u1ed5ng SFP v\u00e0 SFP+, c\u0169ng nh\u01b0 c\u00e1ch \u0111\u1ea3m b\u1ea3o ho\u1ea1t \u0111\u1ed9ng \u1ed5n \u0111\u1ecbnh trong c\u00e1c m\u00f4i tr\u01b0\u1eddng m\u1ea1ng th\u1ef1c t\u1ebf.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ebfn cu\u1ed1i b\u00e0i vi\u1ebft n\u00e0y, b\u1ea1n s\u1ebd c\u00f3 th\u1ec3 t\u1ef1 tin l\u1ef1a ch\u1ecdn v\u00e0 tri\u1ec3n khai \u0111\u00fang m\u00f4-\u0111un SFP Gigabit cho m\u1ea1ng c\u1ee7a m\u00ecnh, t\u1eeb \u0111\u00f3 n\u00e2ng cao \u0111\u1ed9 tin c\u1eady c\u0169ng nh\u01b0 kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng d\u00e0i h\u1ea1n.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >\ud83d\udfe7 B\u1ed9 thu ph\u00e1t SFP Gigabit l\u00e0 g\u00ec?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">B\u1ed9 thu ph\u00e1t SFP Gigabit (Small Form-factor Pluggable) l\u00e0 m\u1ed9t m\u00f4-\u0111un giao di\u1ec7n m\u1ea1ng nh\u1ecf g\u1ecdn, c\u00f3 th\u1ec3 thay th\u1ebf n\u00f3ng, \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 truy\u1ec1n v\u00e0 nh\u1eadn d\u1eef li\u1ec7u \u1edf t\u1ed1c \u0111\u1ed9 1 Gigabit m\u1ed7i gi\u00e2y (1 Gbps) qua c\u00e1p s\u1ee3i quang ho\u1eb7c k\u1ebft n\u1ed1i Ethernet \u0111\u1ed3ng. N\u00f3 \u0111\u00f3ng vai tr\u00f2 c\u1ea7u n\u1ed1i gi\u1eefa c\u00e1c thi\u1ebft b\u1ecb m\u1ea1ng\u2014nh\u01b0 switch, router, t\u01b0\u1eddng l\u1eeda v\u00e0 m\u00e1y ch\u1ee7\u2014v\u1edbi ph\u01b0\u01a1ng ti\u1ec7n truy\u1ec1n d\u1eabn v\u1eadt l\u00fd.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V\u1ec1 b\u1ea3n ch\u1ea5t, m\u1ed9t <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/488475.htm\">B\u1ed9 thu ph\u00e1t SFP Gigabit<\/a> chuy\u1ec3n \u0111\u1ed5i t\u00edn hi\u1ec7u \u0111i\u1ec7n t\u1eeb c\u00e1c thi\u1ebft b\u1ecb m\u1ea1ng th\u00e0nh t\u00edn hi\u1ec7u quang (cho k\u1ebft n\u1ed1i s\u1ee3i quang) ho\u1eb7c t\u00edn hi\u1ec7u \u0111i\u1ec7n \u0111\u01b0\u1ee3c t\u1ed1i \u01b0u h\u00f3a cho truy\u1ec1n d\u1eabn \u0111\u1ed3ng (cho c\u00e1c m\u00f4-\u0111un d\u1ef1a tr\u00ean RJ45). Vi\u1ec7c chuy\u1ec3n \u0111\u1ed5i n\u00e0y cho ph\u00e9p d\u1eef li\u1ec7u truy\u1ec1n \u0111i hi\u1ec7u qu\u1ea3 tr\u00ean c\u00e1c lo\u1ea1i ph\u01b0\u01a1ng ti\u1ec7n v\u00e0 kho\u1ea3ng c\u00e1ch kh\u00e1c nhau, \u0111\u1ed3ng th\u1eddi duy tr\u00ec k\u1ebft n\u1ed1i \u1ed5n \u0111\u1ecbnh v\u00e0 t\u1ed1c \u0111\u1ed9 cao.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t trong nh\u1eefng l\u1ee3i th\u1ebf n\u1ed5i b\u1eadt c\u1ee7a c\u00f4ng ngh\u1ec7 SFP l\u00e0 t\u00ednh linh ho\u1ea1t m\u00f4-\u0111un. Thay v\u00ec b\u1ecb gi\u1edbi h\u1ea1n b\u1edfi lo\u1ea1i c\u1ed5ng c\u1ed1 \u0111\u1ecbnh, c\u00e1c thi\u1ebft b\u1ecb m\u1ea1ng c\u00f3 th\u1ec3 h\u1ed7 tr\u1ee3 nhi\u1ec1u lo\u1ea1i k\u1ebft n\u1ed1i ch\u1ec9 b\u1eb1ng c\u00e1ch thay \u0111\u1ed5i m\u00f4-\u0111un SFP. V\u00ed d\u1ee5, m\u1ed9t switch duy nh\u1ea5t c\u00f3 th\u1ec3 h\u1ed7 tr\u1ee3 s\u1ee3i quang \u0111a mode t\u1ea7m ng\u1eafn b\u1eb1ng <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/478230.htm\">C\u00e1c h\u1ea1n ch\u1ebf m\u00e3 h\u00f3a c\u1ee7a nh\u00e0 cung c\u1ea5p \u0111\u01b0\u1ee3c xem x\u00e9t n\u1ebfu s\u1eed d\u1ee5ng thi\u1ebft b\u1ecb quang h\u1ecdc c\u1ee7a b\u00ean th\u1ee9 ba<\/a>, s\u1ee3i quang \u0111\u01a1n mode t\u1ea7m xa b\u1eb1ng <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/476763.htm\">1000BASE-LX<\/a>, ho\u1eb7c k\u1ebft n\u1ed1i \u0111\u1ed3ng Ethernet ti\u00eau chu\u1ea9n b\u1eb1ng <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/476770.htm\">1000BASE-T<\/a>\u2014t\u1ea5t c\u1ea3 \u0111\u1ec1u th\u00f4ng qua c\u00e1c m\u00f4-\u0111un SFP c\u00f3 th\u1ec3 ho\u00e1n \u0111\u1ed5i cho nhau.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img decoding=\"async\" width=\"1200\" height=\"675\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/4f00f57f56fa4c849036913a3d64f8b9.jpg\" alt=\"What Is a Gigabit SFP Transceiver?\" class=\"wp-image-2450\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/4f00f57f56fa4c849036913a3d64f8b9.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/4f00f57f56fa4c849036913a3d64f8b9-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/4f00f57f56fa4c849036913a3d64f8b9-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/4f00f57f56fa4c849036913a3d64f8b9-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/4f00f57f56fa4c849036913a3d64f8b9-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" >C\u00e1c v\u1ecb tr\u00ed \u1ee9ng d\u1ee5ng b\u1ed9 thu ph\u00e1t SFP Gigabit<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">B\u1ed9 thu ph\u00e1t SFP Gigabit \u0111\u01b0\u1ee3c tri\u1ec3n khai r\u1ed9ng r\u00e3i trong c\u1ea3 m\u1ea1ng doanh nghi\u1ec7p v\u00e0 m\u1ea1ng nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 nh\u1edd t\u00ednh linh ho\u1ea1t v\u00e0 \u0111\u1ed9 tin c\u1eady cao. C\u00e1c tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng ph\u1ed5 bi\u1ebfn bao g\u1ed3m:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>Switch m\u1ea1ng doanh nghi\u1ec7p:<\/strong> K\u1ebft n\u1ed1i c\u00e1c switch truy c\u1eadp v\u00e0 l\u00f5i gi\u1eefa c\u00e1c t\u1ea7ng ho\u1eb7c t\u00f2a nh\u00e0<\/p><\/li><li><p><a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/what-is-a-data-center\/\"><strong>```html<\/strong><\/a><strong>:<\/strong> Li\u00ean k\u1ebft m\u1eadt \u0111\u1ed9 cao gi\u1eefa m\u00e1y ch\u1ee7 v\u00e0 switch<\/p><\/li><li><p><strong>M\u1ea1ng vi\u1ec5n th\u00f4ng:<\/strong> Li\u00ean k\u1ebft t\u1ed5ng h\u1ee3p v\u00e0 backhaul trong c\u00e1c h\u1ec7 th\u1ed1ng Ethernet \u0111\u00f4 th\u1ecb<\/p><\/li><li><p><a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/what-is-an-isp-internet-service-provider\/\"><strong>However, many beginners are confused by common questions such as:<\/strong><\/a><strong> C\u01a1 s\u1edf h\u1ea1 t\u1ea7ng:<\/strong> Li\u00ean k\u1ebft \u201cd\u1eb7m cu\u1ed1i\u201d v\u00e0 ph\u00e2n ph\u1ed1i m\u1ea1ng<\/p><\/li><li><p><strong>H\u1ec7 th\u1ed1ng an ninh v\u00e0 gi\u00e1m s\u00e1t:<\/strong> K\u1ebft n\u1ed1i camera IP v\u00e0 trung t\u00e2m \u0111i\u1ec1u khi\u1ec3n tr\u00ean kho\u1ea3ng c\u00e1ch d\u00e0i<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Nh\u1edd t\u00ednh ch\u1ea5t c\u1eafm v\u00e0 ch\u1ea1y, <a target=\"_self\" href=\"https:\/\/www.l-p.com\/store-26155-1g-sfp.htm\">c\u00e1c m\u00f4-\u0111un SFP Gigabit<\/a> c\u00f2n r\u1ea5t ph\u1ed5 bi\u1ebfn trong c\u00e1c m\u00f4i tr\u01b0\u1eddng m\u00e0 kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng m\u1ea1ng v\u00e0 hi\u1ec7u qu\u1ea3 b\u1ea3o tr\u00ec l\u00e0 y\u1ebfu t\u1ed1 then ch\u1ed1t. Qu\u1ea3n tr\u1ecb vi\u00ean c\u00f3 th\u1ec3 nhanh ch\u00f3ng thay th\u1ebf ho\u1eb7c n\u00e2ng c\u1ea5p m\u00f4-\u0111un m\u00e0 kh\u00f4ng c\u1ea7n t\u1eaft ngu\u1ed3n thi\u1ebft b\u1ecb, t\u1eeb \u0111\u00f3 gi\u1ea3m thi\u1ec3u th\u1eddi gian ng\u1eebng ho\u1ea1t \u0111\u1ed9ng v\u00e0 \u0111\u01a1n gi\u1ea3n h\u00f3a vi\u1ec7c m\u1edf r\u1ed9ng m\u1ea1ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">T\u00f3m l\u1ea1i, b\u1ed9 thu ph\u00e1t SFP Gigabit l\u00e0 m\u1ed9t kh\u1ed1i x\u00e2y d\u1ef1ng n\u1ec1n t\u1ea3ng c\u1ee7a c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng Ethernet hi\u1ec7n \u0111\u1ea1i, k\u1ebft h\u1ee3p t\u1ed1c \u0111\u1ed9, t\u00ednh linh ho\u1ea1t v\u00e0 thi\u1ebft k\u1ebf m\u00f4-\u0111un nh\u1eb1m h\u1ed7 tr\u1ee3 nhi\u1ec1u t\u00ecnh hu\u1ed1ng m\u1ea1ng kh\u00e1c nhau.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >\ud83d\udfe7 C\u00e1c lo\u1ea1i v\u00e0 ti\u00eau chu\u1ea9n SFP Gigabit<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">B\u1ed9 thu ph\u00e1t SFP Gigabit c\u00f3 s\u1eb5n \u1edf nhi\u1ec1u lo\u1ea1i ti\u00eau chu\u1ea9n \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1edfi<a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/ieee-802-3-ethernet-standard-explained\/\"> IEEE 802.3<\/a> c\u00e1c \u0111\u1eb7c t\u1ea3 Ethernet. M\u1ed7i lo\u1ea1i \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf d\u00e0nh ri\u00eang cho ph\u01b0\u01a1ng ti\u1ec7n truy\u1ec1n d\u1eabn c\u1ee5 th\u1ec3, kho\u1ea3ng c\u00e1ch v\u00e0 m\u00f4i tr\u01b0\u1eddng m\u1ea1ng nh\u1ea5t \u0111\u1ecbnh. Vi\u1ec7c l\u1ef1a ch\u1ecdn ti\u00eau chu\u1ea9n ph\u00f9 h\u1ee3p l\u00e0 \u0111i\u1ec1u thi\u1ebft y\u1ebfu \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o t\u00ednh t\u01b0\u01a1ng th\u00edch, hi\u1ec7u su\u1ea5t k\u1ebft n\u1ed1i \u1ed5n \u0111\u1ecbnh v\u00e0 hi\u1ec7u qu\u1ea3 chi ph\u00ed t\u1ed1i \u01b0u.<\/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\/3f3083046531461983108f4338562496.jpg\" alt=\"Gigabit SFP Types and Standards\" class=\"wp-image-2451\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/3f3083046531461983108f4338562496.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/3f3083046531461983108f4338562496-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/3f3083046531461983108f4338562496-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/3f3083046531461983108f4338562496-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/3f3083046531461983108f4338562496-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>B\u1ea3ng so s\u00e1nh c\u00e1c lo\u1ea1i SFP Gigabit<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\">\n<table class=\"has-fixed-layout\">\n<colgroup><col style=\"width: 126px;\"\/><col style=\"width: 149px;\"\/><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><\/colgroup><tbody><tr><th colspan=\"1\" rowspan=\"1\" colwidth=\"126\"><p>Lo\u1ea1i SFP<\/p><\/th><th colspan=\"1\" rowspan=\"1\" colwidth=\"149\"><p>1000BASE\u2011SX<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>1000BASE\u2011LX<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>1000BASE\u2011LH<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>1000BASE\u2011T<\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"126\"><p>Ti\u00eau chu\u1ea9n<\/p><\/td><td colspan=\"1\" rowspan=\"1\" colwidth=\"149\"><p>IEEE 802.3z<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>IEEE 802.3z<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Bi\u1ebfn th\u1ec3 ng\u00e0nh (Long Haul)<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>IEEE 802.3ab<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"126\"><p>M\u00f4i tr\u01b0\u1eddng truy\u1ec1n d\u1eabn<\/p><\/td><td colspan=\"1\" rowspan=\"1\" colwidth=\"149\"><p>C\u00e1p quang \u0111a mode (MMF)<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>S\u1ee3i quang \u0111\u01a1n mode (SMF)<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>S\u1ee3i quang \u0111\u01a1n mode (SMF)<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\u0110\u1ed3ng (Cat5e\/Cat6)<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"126\"><p>B\u01b0\u1edbc s\u00f3ng<br><\/p><\/td><td colspan=\"1\" rowspan=\"1\" colwidth=\"149\"><p>850 nm<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>1310 nm<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>1310 nm<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>T\u00edn hi\u1ec7u \u0111i\u1ec7n<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"126\"><p>\u0110\u1ea7u n\u1ed1i<\/p><\/td><td colspan=\"1\" rowspan=\"1\" colwidth=\"149\"><p>LC Duplex<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>LC Duplex<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>LC Duplex<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>RJ45<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"126\"><p>Kho\u1ea3ng c\u00e1ch \u0111i\u1ec3n h\u00ecnh<\/p><\/td><td colspan=\"1\" rowspan=\"1\" colwidth=\"149\"><p>220 m\u2013550 m<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\u0110\u1ebfn 10 km<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>L\u00ean \u0111\u1ebfn 10 km tr\u1edf l\u00ean<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>T\u1ed1i \u0111a 100 m<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"126\"><p>Tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng ph\u1ed5 bi\u1ebfn<\/p><\/td><td colspan=\"1\" rowspan=\"1\" colwidth=\"149\"><p>Trung t\u00e2m d\u1eef li\u1ec7u, li\u00ean k\u1ebft n\u1ed9i t\u00f2a nh\u00e0<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>M\u1ea1ng khu\u00f4n vi\u00ean, li\u00ean k\u1ebft gi\u1eefa c\u00e1c t\u00f2a nh\u00e0<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>M\u1ea1ng \u0111\u00f4 th\u1ecb, li\u00ean k\u1ebft t\u1ea7m xa m\u1edf r\u1ed9ng<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>LAN v\u0103n ph\u00f2ng, switch truy c\u1eadp, h\u1ec7 th\u1ed1ng k\u1ebf th\u1eeba<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" >1000BASE-SX: S\u1ee3i quang \u0111a mode t\u1ea7m ng\u1eafn<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>C\u00e1c h\u1ea1n ch\u1ebf m\u00e3 h\u00f3a c\u1ee7a nh\u00e0 cung c\u1ea5p \u0111\u01b0\u1ee3c xem x\u00e9t n\u1ebfu s\u1eed d\u1ee5ng thi\u1ebft b\u1ecb quang h\u1ecdc c\u1ee7a b\u00ean th\u1ee9 ba<\/strong> l\u00e0 m\u1ed9t trong nh\u1eefng ti\u00eau chu\u1ea9n SFP Gigabit \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng ph\u1ed5 bi\u1ebfn nh\u1ea5t cho k\u1ebft n\u1ed1i s\u1ee3i quang t\u1ea7m ng\u1eafn. N\u00f3 ho\u1ea1t \u0111\u1ed9ng tr\u00ean <strong>s\u1ee3i quang \u0111a mode (MMF)<\/strong> v\u1edbi b\u01b0\u1edbc s\u00f3ng 850 nm.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>Kho\u1ea3ng c\u00e1ch \u0111i\u1ec3n h\u00ecnh:<\/strong> L\u00ean \u0111\u1ebfn 220m\u2013550m (t\u00f9y thu\u1ed9c v\u00e0o c\u1ea5p \u0111\u1ed9 s\u1ee3i quang, v\u00ed d\u1ee5 OM1\u2013OM4)<\/p><\/li><li><p><strong>Lo\u1ea1i \u0111\u1ea7u n\u1ed1i:<\/strong> <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/sfp-duplex-lc-connector-explained\/\">LC hai chi\u1ec1u<\/a><\/p><\/li><li><p><strong>Tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng:<\/strong> Trung t\u00e2m d\u1eef li\u1ec7u, doanh nghi\u1ec7p <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/local-area-network-lan-modern-networking-fast-secure-connections\/\">M\u1ea1ng LAN<\/a>, li\u00ean k\u1ebft n\u1ed9i t\u00f2a nh\u00e0<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">1000BASE-SX r\u1ea5t ph\u00f9 h\u1ee3p cho c\u00e1c k\u1ebft n\u1ed1i t\u1ed1c \u0111\u1ed9 cao trong c\u00f9ng m\u1ed9t t\u00f2a nh\u00e0 ho\u1eb7c m\u00f4i tr\u01b0\u1eddng rack-to-rack, n\u01a1i kh\u00f4ng y\u00eau c\u1ea7u truy\u1ec1n d\u1eabn t\u1ea7m xa.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >1000BASE-LX\/LH: S\u1ee3i quang \u0111\u01a1n mode t\u1ea7m xa<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>1000BASE-LX (b\u01b0\u1edbc s\u00f3ng d\u00e0i)<\/strong> and <strong>1000BASE-LH (t\u1ea7m xa)<\/strong> \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf cho truy\u1ec1n th\u00f4ng t\u1ea7m xa h\u01a1n b\u1eb1ng <strong>v\u00e0 s\u1ee3i quang \u0111\u01a1n mode (SMF)<\/strong> \u1edf b\u01b0\u1edbc s\u00f3ng 1310 nm.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>Kho\u1ea3ng c\u00e1ch \u0111i\u1ec3n h\u00ecnh:<\/strong> L\u00ean \u0111\u1ebfn 10 km (ti\u00eau chu\u1ea9n), \u0111\u00f4i khi xa h\u01a1n v\u1edbi quang h\u1ecdc ch\u1ea5t l\u01b0\u1ee3ng cao<\/p><\/li><li><p><strong>Lo\u1ea1i \u0111\u1ea7u n\u1ed1i:<\/strong> LC hai chi\u1ec1u<\/p><\/li><li><p><strong>Tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng:<\/strong> M\u1ea1ng khu\u00f4n vi\u00ean, m\u1ea1ng Ethernet \u0111\u00f4 th\u1ecb, k\u1ebft n\u1ed1i gi\u1eefa c\u00e1c t\u00f2a nh\u00e0<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Lo\u1ea1i n\u00e0y \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i khi c\u00e1c li\u00ean k\u1ebft m\u1ea1ng ph\u1ea3i bao ph\u1ee7 nhi\u1ec1u t\u00f2a nh\u00e0 kh\u00e1c nhau ho\u1eb7c c\u00e1c m\u00f4i tr\u01b0\u1eddng khu\u00f4n vi\u00ean l\u1edbn.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >1000BASE-T: SFP \u0111\u1ed3ng RJ45<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Kh\u00e1c v\u1edbi c\u00e1c m\u00f4-\u0111un quang h\u1ecdc, <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/476812.htm\"><strong>B\u1ed9 thu ph\u00e1t 1000BASE-T SFP<\/strong><\/a> h\u1ed7 tr\u1ee3 truy\u1ec1n d\u1eabn tr\u00ean c\u00e1p \u0111\u1ed3ng Ethernet ti\u00eau chu\u1ea9n <strong>lo\u1ea1i 5e\/6<\/strong> b\u1eb1ng giao di\u1ec7n RJ45.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>Kho\u1ea3ng c\u00e1ch \u0111i\u1ec3n h\u00ecnh:<\/strong> T\u1ed1i \u0111a 100 m\u00e9t<\/p><\/li><li><p><strong>Lo\u1ea1i \u0111\u1ea7u n\u1ed1i:<\/strong> RJ45<\/p><\/li><li><p><strong>Tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng:<\/strong> Tr\u1ea1m l\u00e0m vi\u1ec7c, b\u1ed9 chuy\u1ec3n m\u1ea1ch l\u1edbp truy c\u1eadp, c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng \u0111\u1ed3ng k\u1ebf th\u1eeba<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c m\u00f4-\u0111un SFP 1000BASE-T \u0111\u1eb7c bi\u1ec7t h\u1eefu \u00edch khi c\u00e1p quang kh\u00f4ng kh\u1ea3 d\u1ee5ng ho\u1eb7c khi k\u1ebft n\u1ed1i v\u1edbi c\u00e1c m\u1ea1ng d\u1ef1a tr\u00ean \u0111\u1ed3ng hi\u1ec7n c\u00f3.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >So s\u00e1nh m\u00f4-\u0111un SFP Gigabit \u0111\u1ed3ng v\u00e0 quang<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">S\u1ef1 kh\u00e1c bi\u1ec7t ch\u00ednh <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/products\/copper-sfp-vs-fiber-sfp\/\">gi\u1eefa m\u00f4-\u0111un SFP \u0111\u1ed3ng v\u00e0 quang<\/a> n\u1eb1m \u1edf ph\u01b0\u01a1ng ti\u1ec7n truy\u1ec1n d\u1eabn v\u00e0 t\u00ednh linh ho\u1ea1t tri\u1ec3n khai:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/476800.htm\"><strong>SFP \u0111\u1ed3ng<\/strong><\/a><strong> (1000BASE-T):<\/strong> Tri\u1ec3n khai d\u1ec5 d\u00e0ng h\u01a1n, chi ph\u00ed c\u00e1p th\u1ea5p h\u01a1n, nh\u01b0ng kho\u1ea3ng c\u00e1ch gi\u1edbi h\u1ea1n v\u00e0 m\u1ee9c ti\u00eau th\u1ee5 \u0111i\u1ec7n cao h\u01a1n<\/p><\/li><li><p><a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/476091.htm\"><strong>T\u1ed1c \u0111\u1ed9 d\u1eef li\u1ec7u t\u1ed1i \u0111a<\/strong><\/a><strong> (SX\/LX):<\/strong> T\u1ea7m xa h\u01a1n, hi\u1ec7u n\u0103ng cao h\u01a1n, mi\u1ec5n nhi\u1ec5m v\u1edbi nhi\u1ec5u \u0111i\u1ec7n t\u1eeb (EMI), nh\u01b0ng y\u00eau c\u1ea7u c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng c\u00e1p quang<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Trong thi\u1ebft k\u1ebf m\u1ea1ng hi\u1ec7n \u0111\u1ea1i, c\u00e1c m\u00f4-\u0111un SFP quang \u0111\u01b0\u1ee3c \u01b0u ti\u00ean cho c\u00e1c k\u1ebft n\u1ed1i l\u00f5i v\u00e0 k\u1ebft n\u1ed1i l\u00ean (uplink), trong khi c\u00e1c m\u00f4-\u0111un SFP \u0111\u1ed3ng th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u1edf l\u1edbp truy c\u1eadp ho\u1eb7c trong c\u00e1c m\u00f4i tr\u01b0\u1eddng lai.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>T\u1ed5ng quan v\u1ec1 kho\u1ea3ng c\u00e1ch \u0111i\u1ec3n h\u00ecnh<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>1000BASE-SX:<\/strong> 220 m\u2013550 m (s\u1ee3i quang \u0111a mode)<\/p><\/li><li><p><strong>1000BASE-LX\/LH:<\/strong> L\u00ean \u0111\u1ebfn 10 km (s\u1ee3i quang \u0111\u01a1n mode)<\/p><\/li><li><p><strong>1000BASE-T:<\/strong> L\u00ean \u0111\u1ebfn 100 m (c\u00e1p Ethernet \u0111\u1ed3ng)<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c hi\u1ec3u r\u00f5 nh\u1eefng kh\u00e1c bi\u1ec7t n\u00e0y l\u00e0 \u0111i\u1ec1u thi\u1ebft y\u1ebfu khi l\u1eadp k\u1ebf ho\u1ea1ch ki\u1ebfn tr\u00fac m\u1ea1ng, b\u1edfi v\u00ec vi\u1ec7c ch\u1ecdn sai lo\u1ea1i SFP l\u00e0 m\u1ed9t trong nh\u1eefng nguy\u00ean nh\u00e2n ph\u1ed5 bi\u1ebfn nh\u1ea5t g\u00e2y ra l\u1ed7i li\u00ean k\u1ebft v\u00e0 v\u1ea5n \u0111\u1ec1 t\u01b0\u01a1ng th\u00edch trong c\u00e1c tri\u1ec3n khai th\u1ef1c t\u1ebf.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >\ud83d\udfe7 SFP Gigabit so v\u1edbi SFP+ 10 Gigabit: B\u1ea1n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng SFP 1 Gb tr\u00ean c\u1ed5ng 10 Gb kh\u00f4ng?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t trong nh\u1eefng ch\u1ee7 \u0111\u1ec1 \u0111\u01b0\u1ee3c t\u00ecm ki\u1ebfm nhi\u1ec1u nh\u1ea5t v\u00e0 d\u1ec5 b\u1ecb hi\u1ec3u nh\u1ea7m nh\u1ea5t trong l\u0129nh v\u1ef1c m\u1ea1ng l\u00e0 li\u1ec7u m\u1ed9t <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/476756.htm\">b\u1ed9 thu ph\u00e1t SFP 1 Gb<\/a> c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng tr\u00ean c\u1ed5ng SFP+ 10 Gb hay kh\u00f4ng. C\u00e2u tr\u1ea3 l\u1eddi ng\u1eafn g\u1ecdn l\u00e0: \u0111\u00f4i khi c\u00f3, nh\u01b0ng ho\u00e0n to\u00e0n ph\u1ee5 thu\u1ed9c v\u00e0o thi\u1ebft k\u1ebf ph\u1ea7n c\u1ee9ng v\u00e0 c\u1ea5u h\u00ecnh thi\u1ebft b\u1ecb.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c hi\u1ec3u r\u00f5 m\u1ed1i quan h\u1ec7 gi\u1eefa SFP (1G) v\u00e0 <a target=\"_self\" href=\"https:\/\/www.l-p.com\/store-26192-10g-sfp.htm\">SFP+<\/a> SFP+ (10G).<\/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\/c4897a0cec4041e9afa95d58efa637f7.jpg\" alt=\"Gigabit SFP vs. 10 Gigabit SFP+: Can You Use 1Gb SFP in a 10Gb Port?\" class=\"wp-image-2452\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/c4897a0cec4041e9afa95d58efa637f7.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/c4897a0cec4041e9afa95d58efa637f7-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/c4897a0cec4041e9afa95d58efa637f7-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/c4897a0cec4041e9afa95d58efa637f7-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/c4897a0cec4041e9afa95d58efa637f7-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" >l\u00e0 \u0111i\u1ec1u thi\u1ebft y\u1ebfu \u0111\u1ec3 tr\u00e1nh l\u1ed7i li\u00ean k\u1ebft, l\u1ed7i t\u01b0\u01a1ng th\u00edch v\u00e0 c\u00e1c v\u1ea5n \u0111\u1ec1 hi\u1ec7u n\u0103ng b\u1ea5t ng\u1edd trong c\u00e1c tri\u1ec3n khai th\u1ef1c t\u1ebf.<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">T\u00ednh t\u01b0\u01a1ng th\u00edch ng\u01b0\u1ee3c: Khi n\u00e0o th\u00ec ho\u1ea1t \u0111\u1ed9ng <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/477562.htm\">Tr\u00ean nhi\u1ec1u thi\u1ebft b\u1ecb m\u1ea1ng hi\u1ec7n \u0111\u1ea1i, c\u00e1c c\u1ed5ng SFP+ h\u1ed7 tr\u1ee3 t\u01b0\u01a1ng th\u00edch ng\u01b0\u1ee3c v\u1edbi<\/a>. m\u00f4-\u0111un SFP 1G <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/488475.htm\">\u0110i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 m\u1ed9t c\u1ed5ng c\u00f3 kh\u1ea3 n\u0103ng 10G th\u01b0\u1eddng c\u00f3 th\u1ec3 ch\u1ea5p nh\u1eadn v\u00e0 v\u1eadn h\u00e0nh<\/a> b\u1ed9 thu ph\u00e1t 1G.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">n\u1ebfu thi\u1ebft b\u1ecb h\u1ed7 tr\u1ee3 th\u01b0\u01a1ng l\u01b0\u1ee3ng t\u1ed1c \u0111\u1ed9 ho\u1eb7c c\u1ea5u h\u00ecnh t\u1ed1c \u0111\u1ed9 th\u1ee7 c\u00f4ng.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Trong nh\u1eefng tr\u01b0\u1eddng h\u1ee3p n\u00e0y:<\/p><\/li><li><p>C\u1ed5ng ph\u1ea3i h\u1ed7 tr\u1ee3 r\u00f5 r\u00e0ng ch\u1ebf \u0111\u1ed9 ho\u1ea1t \u0111\u1ed9ng 1G<\/p><\/li><li><p>B\u1ed9 chuy\u1ec3n m\u1ea1ch ho\u1eb7c b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn ph\u1ea3i cho ph\u00e9p c\u1ea5u h\u00ecnh t\u1ed1c \u0111\u1ed9 (ch\u1ebf \u0111\u1ed9 t\u1ef1 \u0111\u1ed9ng ho\u1eb7c b\u1eaft bu\u1ed9c 1G\/10G)<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">M\u00f4-\u0111un \u0111\u01b0\u1ee3c c\u1eafm v\u00e0o ph\u1ea3i l\u00e0 SFP 1G h\u1ee3p l\u1ec7 (kh\u00f4ng ph\u1ea3i quang h\u1ecdc ch\u1ec9 d\u00e0nh ri\u00eang cho 10G).<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >T\u00ednh linh ho\u1ea1t n\u00e0y kh\u00e1 ph\u1ed5 bi\u1ebfn tr\u00ean c\u00e1c b\u1ed9 chuy\u1ec3n m\u1ea1ch c\u1ea5p doanh nghi\u1ec7p v\u00e0 thi\u1ebft b\u1ecb trung t\u00e2m d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf cho c\u00e1c m\u00f4i tr\u01b0\u1eddng h\u1ed7n h\u1ee3p t\u1ed1c \u0111\u1ed9.<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Khi n\u00e0o th\u00ec KH\u00d4NG ho\u1ea1t \u0111\u1ed9ng <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/476093.htm\">SFP 1G<\/a> M\u1eb7c d\u00f9 v\u1ec1 m\u1eb7t v\u1eadt l\u00fd t\u01b0\u01a1ng th\u00edch (c\u00f9ng k\u00edch th\u01b0\u1edbc h\u00ecnh d\u1ea1ng), v\u1eabn t\u1ed3n t\u1ea1i nhi\u1ec1u t\u00ecnh hu\u1ed1ng m\u00e0 m\u1ed9t<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>\u274c C\u1ed5ng SFP+ ch\u1ec9 h\u1ed7 tr\u1ee3 10G (kh\u00f4ng h\u1ed7 tr\u1ee3 tr\u1edf l\u1ea1i 1G)<\/p><\/li><li><p>\u274c Ph\u1ea7n\u56fa\u4ef6 thi\u1ebft b\u1ecb h\u1ea1n ch\u1ebf quang h\u1ecdc kh\u00f4ng \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3 (kh\u00f3a nh\u00e0 s\u1ea3n xu\u1ea5t ho\u1eb7c quy t\u1eafc m\u00e3 h\u00f3a)<\/p><\/li><li><p>\u274c C\u1ed5ng c\u1ed1 \u0111\u1ecbnh \u1edf t\u1ed1c \u0111\u1ed9 10G duy nh\u1ea5t, kh\u00f4ng c\u00f3 t\u00f9y ch\u1ecdn th\u01b0\u01a1ng l\u01b0\u1ee3ng t\u1ef1 \u0111\u1ed9ng<\/p><\/li><li><p>\u274c Lo\u1ea1i m\u00f4-\u0111un kh\u00f4ng \u0111\u01b0\u1ee3c nh\u1eadn d\u1ea1ng do <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/how-eeprom-powers-sfp-and-qsfp-optical-modules\/\">B\u1ed9 nh\u1edb EEPROM<\/a> c\u00e1c h\u1ea1n ch\u1ebf m\u00e3 h\u00f3a<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Trong nh\u1eefng tr\u01b0\u1eddng h\u1ee3p n\u00e0y, vi\u1ec7c c\u1eafm SFP 1G th\u01b0\u1eddng d\u1eabn \u0111\u1ebfn tr\u1ea1ng th\u00e1i \u201cm\u1ea5t li\u00ean k\u1ebft\u201d ho\u1eb7c c\u1ea3nh b\u00e1o \u201cquang h\u1ecdc kh\u00f4ng \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3\u201d.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >H\u1ea1n ch\u1ebf thi\u1ebft b\u1ecb v\u00e0 h\u1ea1n ch\u1ebf c\u1ee7a nh\u00e0 cung c\u1ea5p<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t y\u1ebfu t\u1ed1 quan tr\u1ecdng kh\u00e1c l\u00e0 ch\u00ednh s\u00e1ch t\u01b0\u01a1ng th\u00edch c\u1ee5 th\u1ec3 theo nh\u00e0 cung c\u1ea5p. Nhi\u1ec1u nh\u00e0 cung c\u1ea5p thi\u1ebft b\u1ecb m\u1ea1ng h\u00e0ng \u0111\u1ea7u \u00e1p d\u1ee5ng c\u00e1c quy t\u1eafc nghi\u00eam ng\u1eb7t ch\u1ec9 cho ph\u00e9p c\u00e1c b\u1ed9 thu ph\u00e1t \u0111\u00e3 \u0111\u01b0\u1ee3c ch\u1ee9ng nh\u1eadn ho\u1eb7c m\u00e3 h\u00f3a.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110i\u1ec1u n\u00e0y d\u1eabn \u0111\u1ebfn c\u00e1c t\u00ecnh hu\u1ed1ng th\u1ef1c t\u1ebf ph\u1ed5 bi\u1ebfn nh\u01b0 sau:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>M\u00f4-\u0111un \u0111\u01b0\u1ee3c ph\u00e1t hi\u1ec7n v\u1ec1 m\u1eb7t v\u1eadt l\u00fd nh\u01b0ng b\u1ecb v\u00f4 hi\u1ec7u h\u00f3a b\u1edfi ph\u1ea7n\u56fa\u4ef6<\/p><\/li><li><p>C\u1ed5ng hi\u1ec3n th\u1ecb l\u1ed7i \u201cquang h\u1ecdc kh\u00f4ng \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3\u201d ho\u1eb7c \u201cm\u00f4-\u0111un kh\u00f4ng h\u1ee3p l\u1ec7\u201d<\/p><\/li><li><p>C\u00e1c SFP c\u1ee7a b\u00ean th\u1ee9 ba ho\u1ea1t \u0111\u1ed9ng tr\u00ean m\u1ed9t b\u1ed9 chuy\u1ec3n m\u1ea1ch nh\u01b0ng th\u1ea5t b\u1ea1i tr\u00ean b\u1ed9 chuy\u1ec3n m\u1ea1ch kh\u00e1c<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00ec l\u00fd do n\u00e0y, t\u00ednh t\u01b0\u01a1ng th\u00edch kh\u00f4ng ch\u1ec9 ph\u1ee5 thu\u1ed9c v\u00e0o t\u1ed1c \u0111\u1ed9 \u2014 m\u00e0 c\u00f2n ph\u1ee5 thu\u1ed9c v\u00e0o m\u00e3 h\u00f3a, x\u00e1c th\u1ef1c ph\u1ea7n\u56fa\u4ef6 v\u00e0 c\u00e1c quy t\u1eafc h\u1ec7 sinh th\u00e1i nh\u00e0 cung c\u1ea5p.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >Nh\u1eefng sai l\u1ea7m ph\u1ed5 bi\u1ebfn nh\u1ea5t khi tr\u1ed9n t\u1ed1c \u0111\u1ed9<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">D\u1ef1a tr\u00ean c\u00e1c tri\u1ec3n khai th\u1ef1c t\u1ebf v\u00e0 ph\u1ea3n h\u1ed3i t\u1eeb c\u1ed9ng \u0111\u1ed3ng, \u0111\u1eb7c bi\u1ec7t tr\u00ean c\u00e1c di\u1ec5n \u0111\u00e0n m\u1ea1ng v\u00e0 th\u1ea3o lu\u1eadn tr\u00ean Reddit, nh\u1eefng sai l\u1ea7m sau \u0111\u00e2y c\u1ef1c k\u1ef3 ph\u1ed5 bi\u1ebfn:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Gi\u1ea3 \u0111\u1ecbnh r\u1eb1ng t\u1ea5t c\u1ea3 c\u00e1c c\u1ed5ng SFP+ \u0111\u1ec1u h\u1ed7 tr\u1ee3 m\u00f4-\u0111un 1G<\/p><\/li><li><p>Tr\u1ed9n quang h\u1ecdc 1G v\u00e0 10G m\u00e0 kh\u00f4ng ki\u1ec3m tra c\u1ea5u h\u00ecnh ch\u1ebf \u0111\u1ed9 c\u1ed5ng<\/p><\/li><li><p>S\u1eed d\u1ee5ng <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/475415.htm\">Module SFP+ 10G<\/a> k\u1ef3 v\u1ecdng ch\u00fang s\u1ebd t\u1ef1 gi\u1ea3m xu\u1ed1ng 1G (ph\u1ea7n l\u1edbn kh\u00f4ng th\u1ec3)<\/p><\/li><li><p>B\u1ecf qua danh s\u00e1ch t\u01b0\u01a1ng th\u00edch c\u1ee7a nh\u00e0 cung c\u1ea5p v\u00e0 y\u00eau c\u1ea7u m\u00e3 h\u00f3a EEPROM<\/p><\/li><li><p>Kh\u00f4ng \u0111\u1ea3m b\u1ea3o c\u1ea3 hai \u0111\u1ea7u c\u1ee7a li\u00ean k\u1ebft c\u00f9ng ho\u1ea1t \u0111\u1ed9ng \u1edf c\u00f9ng t\u1ed1c \u0111\u1ed9 v\u00e0 chu\u1ea9n<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Nh\u1eefng sai l\u1ea7m n\u00e0y th\u01b0\u1eddng d\u1eabn \u0111\u1ebfn s\u1ef1 c\u1ed1 \u201ckh\u00f4ng c\u00f3 li\u00ean k\u1ebft\u201d, ngay c\u1ea3 khi ph\u1ea7n c\u1ee9ng tr\u00f4ng c\u00f3 v\u1ebb t\u01b0\u01a1ng th\u00edch v\u1ec1 m\u1eb7t v\u1eadt l\u00fd.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u0110i\u1ec3m c\u1ea7n l\u01b0u \u00fd ch\u00ednh<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1eb7c d\u00f9 SFP v\u00e0 <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/475586.htm\">m\u00f4-\u0111un SFP+<\/a> SFP+<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>chia s\u1ebb c\u00f9ng giao di\u1ec7n v\u1eadt l\u00fd, ch\u00fang kh\u00f4ng lu\u00f4n c\u00f3 h\u00e0nh vi v\u1eadn h\u00e0nh gi\u1ed1ng nhau. Kh\u1ea3 n\u0103ng s\u1eed d\u1ee5ng SFP 1G tr\u00ean c\u1ed5ng 10G ph\u1ee5 thu\u1ed9c v\u00e0o:<\/p><\/li><li><p>Thi\u1ebft k\u1ebf ph\u1ea7n c\u1ee9ng thi\u1ebft b\u1ecb<\/p><\/li><li><p>Kh\u1ea3 n\u0103ng c\u1ea5u h\u00ecnh t\u1ed1c \u0111\u1ed9 c\u1ed5ng<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c h\u1ea1n ch\u1ebf t\u01b0\u01a1ng th\u00edch c\u1ee7a nh\u00e0 cung c\u1ea5p.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >\ud83d\udfe7 C\u00e1ch ch\u1ecdn m\u00f4-\u0111un SFP Gigabit ph\u00f9 h\u1ee3p<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c l\u1ef1a ch\u1ecdn \u0111\u00fang b\u1ed9 thu ph\u00e1t SFP Gigabit l\u00e0 \u0111i\u1ec1u thi\u1ebft y\u1ebfu \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o hi\u1ec7u n\u0103ng m\u1ea1ng \u1ed5n \u0111\u1ecbnh, tr\u00e1nh c\u00e1c v\u1ea5n \u0111\u1ec1 t\u01b0\u01a1ng th\u00edch v\u00e0 t\u1ed1i \u01b0u h\u00f3a chi ph\u00ed c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng d\u00e0i h\u1ea1n. Trong c\u00e1c tri\u1ec3n khai th\u1ef1c t\u1ebf, ph\u1ea7n l\u1edbn s\u1ef1 c\u1ed1 k\u1ebft n\u1ed1i kh\u00f4ng xu\u1ea5t ph\u00e1t t\u1eeb c\u00e1c m\u00f4-\u0111un l\u1ed7i, m\u00e0 do l\u1ef1a ch\u1ecdn sai lo\u1ea1i c\u1ed5ng, th\u00f4ng s\u1ed1 c\u00e1p quang ho\u1eb7c thi\u1ebft l\u1eadp t\u01b0\u01a1ng th\u00edch nh\u00e0 cung c\u1ea5p.<\/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\/daf83dec75d746c6914d221288f20753.jpg\" alt=\"How to Choose the Right Gigabit SFP Module\" class=\"wp-image-2453\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/daf83dec75d746c6914d221288f20753.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/daf83dec75d746c6914d221288f20753-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/daf83dec75d746c6914d221288f20753-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/daf83dec75d746c6914d221288f20753-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/daf83dec75d746c6914d221288f20753-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ec3 ch\u1ecdn m\u00f4-\u0111un \u0111\u00fang, b\u1ea1n c\u1ea7n \u0111\u00e1nh gi\u00e1 t\u1eebng th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt m\u1ed9t c\u00e1ch tu\u1ea7n t\u1ef1.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >X\u00e1c \u0111\u1ecbnh lo\u1ea1i c\u1ed5ng c\u1ee7a b\u1ea1n (SFP so v\u1edbi SFP+)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">B\u01b0\u1edbc \u0111\u1ea7u ti\u00ean l\u00e0 x\u00e1c nh\u1eadn thi\u1ebft b\u1ecb c\u1ee7a b\u1ea1n h\u1ed7 tr\u1ee3 lo\u1ea1i c\u1ed5ng n\u00e0o:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>SFP (c\u1ed5ng 1G):<\/strong> \u0110\u01b0\u1ee3c thi\u1ebft k\u1ebf ri\u00eang cho c\u00e1c m\u00f4-\u0111un Gigabit Ethernet<\/p><\/li><li><p><strong>SFP+ (c\u1ed5ng 10G):<\/strong> C\u00f3 th\u1ec3 h\u1ed7 tr\u1ee3 t\u1ed1c \u0111\u1ed9 1G ho\u1eb7c 10G t\u00f9y theo thi\u1ebft k\u1ebf ph\u1ea7n c\u1ee9ng<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110i\u1ec1u n\u00e0y quy\u1ebft \u0111\u1ecbnh li\u1ec7u b\u1ea1n c\u1ea7n m\u00f4-\u0111un 1G g\u1ed1c hay c\u1ea5u h\u00ecnh t\u01b0\u01a1ng th\u00edch ng\u01b0\u1ee3c. Lu\u00f4n ki\u1ec3m tra b\u1ea3ng d\u1eef li\u1ec7u thi\u1ebft b\u1ecb (datasheet) tr\u01b0\u1edbc khi mua.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >Ph\u00f9 h\u1ee3p v\u1edbi kho\u1ea3ng c\u00e1ch truy\u1ec1n d\u1eabn y\u00eau c\u1ea7u<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Kho\u1ea3ng c\u00e1ch l\u00e0 m\u1ed9t trong nh\u1eefng ti\u00eau ch\u00ed l\u1ef1a ch\u1ecdn quan tr\u1ecdng nh\u1ea5t:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>Ph\u1ea1m vi ng\u1eafn (\u2264 550 m):<\/strong> 1000BASE-SX (s\u1ee3i quang \u0111a mode)<\/p><\/li><li><p><strong>Ph\u1ea1m vi trung b\u00ecnh \u0111\u1ebfn d\u00e0i (l\u00ean t\u1edbi 10 km):<\/strong> 1000BASE-LX\/LH (s\u1ee3i quang \u0111\u01a1n mode)<\/p><\/li><li><p><strong>\u0110\u01b0\u1eddng d\u00e2y \u0111\u1ed3ng ng\u1eafn (\u2264 100 m):<\/strong> 1000BASE-T (\u0111\u1ed3ng RJ45)<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c ch\u1ecdn m\u00f4-\u0111un c\u00f3 ph\u1ea1m vi kh\u00f4ng \u0111\u1ee7 s\u1ebd d\u1eabn \u0111\u1ebfn li\u00ean k\u1ebft kh\u00f4ng \u1ed5n \u0111\u1ecbnh, trong khi ch\u1ecdn v\u01b0\u1ee3t m\u1ee9c c\u1ea7n thi\u1ebft c\u00f3 th\u1ec3 l\u00e0m t\u0103ng chi ph\u00ed kh\u00f4ng c\u1ea7n thi\u1ebft.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >Ch\u1ecdn lo\u1ea1i s\u1ee3i quang ph\u00f9 h\u1ee3p (<a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/smf-optical-transceiver-vs-mmf-optical-transceiver-guide\/\">\u0110a mode so v\u1edbi \u0111\u01a1n mode<\/a>)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">T\u00ednh t\u01b0\u01a1ng th\u00edch s\u1ee3i quang lu\u00f4n ph\u1ea3i kh\u1edbp gi\u1eefa hai \u0111\u1ea7u c\u1ee7a \u0111\u01b0\u1eddng truy\u1ec1n:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>Multimode fiber (MMF):<\/strong> D\u00f9ng v\u1edbi 1000BASE-SX, l\u00fd t\u01b0\u1edfng cho k\u1ebft n\u1ed1i trong nh\u00e0 c\u1ef1 ly ng\u1eafn<\/p><\/li><li><p><strong>Single-mode fiber (SMF):<\/strong> D\u00f9ng v\u1edbi 1000BASE-LX\/LH, ph\u00f9 h\u1ee3p cho m\u1ea1ng c\u1ef1 ly xa v\u00e0 m\u1ea1ng khu\u00f4n vi\u00ean<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">S\u1ef1 kh\u00f4ng kh\u1edbp gi\u1eefa lo\u1ea1i s\u1ee3i quang v\u00e0 <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/sfp-standard-specifications-compatibility-guide\/\">ti\u00eau chu\u1ea9n SFP<\/a> l\u00e0 m\u1ed9t trong nh\u1eefng nguy\u00ean nh\u00e2n ph\u1ed5 bi\u1ebfn nh\u1ea5t g\u00e2y ra s\u1ef1 c\u1ed1 \u201cli\u00ean k\u1ebft b\u1ecb ng\u1eaft\u201d (link down).<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >Ki\u1ec3m tra t\u00ednh t\u01b0\u01a1ng th\u00edch b\u01b0\u1edbc s\u00f3ng<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed7i <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/blog\/knowledge-center\/sfp-transceiver-types-guide.htm\">lo\u1ea1i SFP<\/a> ho\u1ea1t \u0111\u1ed9ng \u1edf m\u1ed9t b\u01b0\u1edbc s\u00f3ng c\u1ee5 th\u1ec3:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>850 nm:<\/strong> 1000BASE-SX (\u0111a mode)<\/p><\/li><li><p><strong>1310 nm:<\/strong> 1000BASE-LX\/LH (\u0111\u01a1n mode)<\/p><\/li><li><p><strong>T\u00edn hi\u1ec7u \u0111i\u1ec7n:<\/strong> 1000BASE-T (\u0111\u1ed3ng RJ45)<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">C\u1ea3 hai \u0111\u1ea7u c\u1ee7a \u0111\u01b0\u1eddng truy\u1ec1n s\u1ee3i quang \u0111\u1ec1u ph\u1ea3i s\u1eed d\u1ee5ng b\u01b0\u1edbc s\u00f3ng kh\u1edbp nhau, tr\u1eeb khi d\u00f9ng m\u00f4-\u0111un BiDi (hai chi\u1ec1u) chuy\u00ean d\u1ee5ng.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >X\u00e1c minh lo\u1ea1i \u0111\u1ea7u n\u1ed1i<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Ph\u1ea7n l\u1edbn m\u00f4-\u0111un SFP Gigabit s\u1eed d\u1ee5ng \u0111\u1ea7u n\u1ed1i ti\u00eau chu\u1ea9n, nh\u01b0ng vi\u1ec7c ki\u1ec3m tra v\u1eabn r\u1ea5t quan tr\u1ecdng:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>LC duplex:<\/strong> Ti\u00eau chu\u1ea9n cho h\u1ea7u h\u1ebft m\u00f4-\u0111un SFP s\u1ee3i quang<\/p><\/li><li><p><strong>RJ45:<\/strong> \u0110\u01b0\u1ee3c d\u00f9ng cho <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/476771.htm\">C\u00e1c m\u00f4-\u0111un SFP \u0111\u1ed3ng<\/a><\/p><\/li><li><p><strong>SC\/ST (hi\u1ebfm trong <\/strong><a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/sfp-form-factor-compatibility-standards-guide\/\"><strong>D\u1ea1ng th\u1ee9c SFP<\/strong><\/a><strong>):<\/strong> Th\u01b0\u1eddng xu\u1ea5t hi\u1ec7n trong c\u00e1c h\u1ec7 th\u1ed1ng c\u0169<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c ch\u1ecdn sai \u0111\u1ea7u n\u1ed1i c\u00f3 th\u1ec3 ng\u0103n c\u1ea3n vi\u1ec7c l\u1eafp \u0111\u1eb7t v\u1ec1 m\u1eb7t v\u1eadt l\u00fd ho\u1eb7c g\u00e2y l\u1ed7i li\u00ean k\u1ebft ngay l\u1eadp t\u1ee9c.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >Hi\u1ec3u r\u00f5 m\u00e3 h\u00f3a th\u01b0\u01a1ng hi\u1ec7u v\u00e0 t\u00ednh t\u01b0\u01a1ng th\u00edch<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t trong nh\u1eefng y\u1ebfu t\u1ed1 th\u01b0\u1eddng b\u1ecb b\u1ecf qua nh\u1ea5t l\u00e0 m\u00e3 h\u00f3a nh\u00e0 cung c\u1ea5p (t\u01b0\u01a1ng th\u00edch EEPROM).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Nhi\u1ec1u nh\u00e0 cung c\u1ea5p b\u1ed9 chuy\u1ec3n m\u1ea1ch (<a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/476764.htm\">Cisco<\/a>, <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/477871.htm\">Juniper<br><\/a>, <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/491512.htm\">HPE<\/a>, v.v.) c\u00f3 th\u1ec3:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Y\u00eau c\u1ea7u b\u1ed9 thu ph\u00e1t do nh\u00e0 cung c\u1ea5p m\u00e3 h\u00f3a<\/p><\/li><li><p>Ch\u1eb7n c\u00e1c module b\u00ean th\u1ee9 ba<\/p><\/li><li><p>Hi\u1ec3n th\u1ecb c\u1ea3nh b\u00e1o \u201cb\u1ed9 thu ph\u00e1t kh\u00f4ng \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3\u201d<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ec3 tr\u00e1nh s\u1ef1 c\u1ed1, h\u00e3y ch\u1ecdn m\u1ed9t trong hai t\u00f9y ch\u1ecdn sau:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>C\u00e1c module \u0111\u01b0\u1ee3c ch\u1ee9ng nh\u1eadn b\u1edfi nh\u00e0 s\u1ea3n xu\u1ea5t g\u1ed1c (t\u01b0\u01a1ng th\u00edch cao nh\u1ea5t)<\/p><\/li><li><p>Ho\u1eb7c c\u00e1c module b\u00ean th\u1ee9 ba \u0111\u00e3 \u0111\u01b0\u1ee3c ki\u1ec3m tra <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/476093.htm\">c\u00e1c module SFP t\u01b0\u01a1ng th\u00edch<\/a> v\u1edbi h\u1ed7 tr\u1ee3 m\u00e3 h\u00f3a \u0111\u1ea7y \u0111\u1ee7<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Trong quy tr\u00ecnh mua s\u1eafm hi\u1ec7n \u0111\u1ea1i, c\u00e1c module \u201ct\u01b0\u01a1ng th\u00edch nh\u01b0ng \u0111\u00e3 \u0111\u01b0\u1ee3c ki\u1ec3m tra\u201d \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i nh\u1eb1m c\u00e2n b\u1eb1ng chi ph\u00ed v\u00e0 hi\u1ec7u n\u0103ng.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >C\u00e2n b\u1eb1ng y\u00eau c\u1ea7u chi ph\u00ed v\u00e0 hi\u1ec7u n\u0103ng<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Cu\u1ed1i c\u00f9ng, h\u00e3y xem x\u00e9t m\u1ee5c ti\u00eau tri\u1ec3n khai t\u1ed5ng th\u1ec3:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>M\u1ea1ng l\u00f5i doanh nghi\u1ec7p:<\/strong> \u01b0u ti\u00ean \u0111\u1ed9 tin c\u1eady v\u00e0 c\u00e1c module SFP d\u00f9ng c\u00e1p quang<\/p><\/li><li><p><strong>M\u1ea1ng l\u1edbp truy c\u1eadp:<\/strong> <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/476772.htm\">c\u00e1c module SFP \u0111\u1ed3ng<\/a> c\u00f3 th\u1ec3 ti\u1ebft ki\u1ec7m chi ph\u00ed h\u01a1n<\/p><\/li><li><p><strong>Trung t\u00e2m d\u1eef li\u1ec7u:<\/strong> t\u1eadp trung v\u00e0o m\u1eadt \u0111\u1ed9, hi\u1ec7u su\u1ea5t t\u1ea3n nhi\u1ec7t v\u00e0 kh\u1ea3 n\u0103ng thay th\u1ebf linh ho\u1ea1t<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Module SFP Gigabit t\u1ed1t nh\u1ea5t kh\u00f4ng ph\u1ea3i l\u00fac n\u00e0o c\u0169ng l\u00e0 module r\u1ebb nh\u1ea5t\u2014m\u00e0 l\u00e0 module ph\u00f9 h\u1ee3p v\u1edbi m\u00f4i tr\u01b0\u1eddng, kho\u1ea3ng c\u00e1ch v\u00e0 r\u00e0ng bu\u1ed9c thi\u1ebft b\u1ecb c\u1ee7a b\u1ea1n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u0110i\u1ec3m c\u1ea7n l\u01b0u \u00fd ch\u00ednh<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c l\u1ef1a ch\u1ecdn b\u1ed9 thu ph\u00e1t SFP Gigabit ph\u00f9 h\u1ee3p \u0111\u00f2i h\u1ecfi ph\u1ea3i c\u00e2n b\u1eb1ng gi\u1eefa t\u00ednh t\u01b0\u01a1ng th\u00edch ph\u1ea7n c\u1ee9ng, ti\u00eau chu\u1ea9n quang h\u1ecdc, y\u00eau c\u1ea7u kho\u1ea3ng c\u00e1ch v\u00e0 quy t\u1eafc m\u00e3 h\u00f3a c\u1ee7a nh\u00e0 cung c\u1ea5p. M\u1ed9t quy tr\u00ecnh l\u1ef1a ch\u1ecdn c\u00f3 c\u1ea5u tr\u00fac s\u1ebd gi\u1ea3m \u0111\u00e1ng k\u1ec3 t\u1ef7 l\u1ec7 th\u1ea5t b\u1ea1i khi tri\u1ec3n khai v\u00e0 \u0111\u1ea3m b\u1ea3o t\u00ednh \u1ed5n \u0111\u1ecbnh l\u00e2u d\u00e0i cho m\u1ea1ng.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >\ud83d\udfe7 C\u00e1c v\u1ea5n \u0111\u1ec1 t\u01b0\u01a1ng th\u00edch SFP Gigabit ph\u1ed5 bi\u1ebfn v\u00e0 c\u00e1ch kh\u1eafc ph\u1ee5c<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Trong tri\u1ec3n khai th\u1ef1c t\u1ebf, c\u00e1c s\u1ef1 c\u1ed1 li\u00ean quan \u0111\u1ebfn b\u1ed9 thu ph\u00e1t SFP Gigabit hi\u1ebfm khi do l\u1ed7i ph\u1ea7n c\u1ee9ng g\u00e2y ra. Thay v\u00e0o \u0111\u00f3, h\u1ea7u h\u1ebft c\u00e1c v\u1ea5n \u0111\u1ec1 \u0111\u1ec1u b\u1eaft ngu\u1ed3n t\u1eeb s\u1ef1 kh\u00f4ng t\u01b0\u01a1ng th\u00edch, c\u1ea5u h\u00ecnh sai ho\u1eb7c h\u1ea1n ch\u1ebf t\u1eeb nh\u00e0 cung c\u1ea5p. Vi\u1ec7c hi\u1ec3u r\u00f5 nh\u1eefng s\u1ef1 c\u1ed1 ph\u1ed5 bi\u1ebfn n\u00e0y c\u00f3 th\u1ec3 gi\u1ea3m \u0111\u00e1ng k\u1ec3 th\u1eddi gian x\u1eed s\u1ef1 c\u1ed1 v\u00e0 ng\u0103n ng\u1eeba vi\u1ec7c thay th\u1ebf module kh\u00f4ng c\u1ea7n thi\u1ebft.<\/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\/e60fa80d061a4f4fa508c5ba3d8a28ef.jpg\" alt=\"Common Gigabit SFP Compatibility Problems and Fixes\" class=\"wp-image-2454\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/e60fa80d061a4f4fa508c5ba3d8a28ef.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/e60fa80d061a4f4fa508c5ba3d8a28ef-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/e60fa80d061a4f4fa508c5ba3d8a28ef-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/e60fa80d061a4f4fa508c5ba3d8a28ef-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/e60fa80d061a4f4fa508c5ba3d8a28ef-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">D\u01b0\u1edbi \u0111\u00e2y l\u00e0 c\u00e1c s\u1ef1 c\u1ed1 SFP Gigabit ph\u1ed5 bi\u1ebfn nh\u1ea5t <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/sfp-issue-troubleshooting-guide\/\">c\u00e1c v\u1ea5n \u0111\u1ec1 SFP<\/a> v\u00e0 c\u00e1c gi\u1ea3i ph\u00e1p kh\u1eafc ph\u1ee5c th\u1ef1c t\u1ebf.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >\u25b6 Li\u00ean k\u1ebft b\u1ecb ng\u1eaft (kh\u00f4ng thi\u1ebft l\u1eadp k\u1ebft n\u1ed1i)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>V\u1ea5n \u0111\u1ec1:<\/strong><br\/>The <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/477867.htm\">m\u00f4-\u0111un SFP<\/a> \u0111\u00e3 \u0111\u01b0\u1ee3c ch\u00e8n v\u00e0o, nh\u01b0ng tr\u1ea1ng th\u00e1i li\u00ean k\u1ebft v\u1eabn \u1edf m\u1ee9c \u201cdown\u201d.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Nguy\u00ean nh\u00e2n ph\u1ed5 bi\u1ebfn:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>C\u00e1p quang kh\u00f4ng \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i \u0111\u00fang c\u00e1ch ho\u1eb7c b\u1ecb \u0111\u1ea3o chi\u1ec1u (l\u1ed7i kh\u1edbp Tx\/Rx)<\/p><\/li><li><p>Lo\u1ea1i SFP sai (v\u00ed d\u1ee5: SX d\u00f9ng v\u1edbi c\u00e1p quang \u0111\u01a1n mode)<\/p><\/li><li><p>Kh\u00f4ng c\u00f3 t\u00edn hi\u1ec7u \u00e1nh s\u00e1ng do b\u01b0\u1edbc s\u00f3ng kh\u00f4ng t\u01b0\u01a1ng th\u00edch<\/p><\/li><li><p>\u0110\u1ea7u n\u1ed1i c\u00e1p quang b\u1ecb b\u1ea9n ho\u1eb7c h\u01b0 h\u1ecfng<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>C\u00e1ch kh\u1eafc ph\u1ee5c:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Ki\u1ec3m tra c\u1ef1c t\u00ednh c\u00e1p quang (\u0111\u1ea3m b\u1ea3o kh\u1edbp Tx \u2194 Rx)<\/p><\/li><li><p>L\u00e0m s\u1ea1ch \u0111\u1ea7u n\u1ed1i b\u1eb1ng d\u1ee5ng c\u1ee5 l\u00e0m s\u1ea1ch c\u00e1p quang chuy\u00ean d\u1ee5ng<\/p><\/li><li><p>\u0110\u1ea3m b\u1ea3o c\u1ea3 hai \u0111\u1ea7u s\u1eed d\u1ee5ng c\u00f9ng m\u1ed9t chu\u1ea9n (v\u00ed d\u1ee5: 1000BASE-SX \u2194 SX)<\/p><\/li><li><p>Thay c\u00e1p n\u1ed1i b\u1ecb h\u01b0 h\u1ecfng n\u1ebfu c\u1ea7n<\/p><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" >\u25b6 L\u1ed7i \u201cb\u1ed9 thu ph\u00e1t kh\u00f4ng \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3\u201d<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>V\u1ea5n \u0111\u1ec1:<\/strong><br\/>B\u1ed9 chuy\u1ec3n m\u1ea1ch ho\u1eb7c b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn hi\u1ec3n th\u1ecb c\u00e1c th\u00f4ng b\u00e1o nh\u01b0<br> <em>\u201cb\u1ed9 thu ph\u00e1t kh\u00f4ng \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3\u201d<br>\u201d<\/em> or <em>\u201cm\u00f4-\u0111un kh\u00f4ng h\u1ee3p l\u1ec7\u201d<br>\u201d<\/em>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Nguy\u00ean nh\u00e2n ph\u1ed5 bi\u1ebfn:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>H\u1ea1n ch\u1ebf do nh\u00e0 s\u1ea3n xu\u1ea5t m\u00e3 h\u00f3a (Cisco, HP, Juniper, v.v.)<br><\/p><\/li><li><p><a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/477864.htm\">Module SFP b\u00ean th\u1ee9 ba<\/a> kh\u00f4ng \u0111\u01b0\u1ee3c nh\u1eadn d\u1ea1ng b\u1edfi firmware<br><\/p><\/li><li><p>Kh\u00f4ng kh\u1edbp m\u00e3 h\u00f3a EEPROM<br><\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>C\u00e1ch kh\u1eafc ph\u1ee5c:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>S\u1eed d\u1ee5ng c\u00e1c m\u00f4-\u0111un t\u01b0\u01a1ng th\u00edch \u0111\u01b0\u1ee3c nh\u00e0 s\u1ea3n xu\u1ea5t ph\u00ea chu\u1ea9n ho\u1eb7c \u0111\u01b0\u1ee3c m\u00e3 h\u00f3a \u0111\u00fang c\u00e1ch<br><\/p><\/li><li><p>B\u1eadt<br> <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/477864.htm\">Thi\u1ebft b\u1ecb quang h\u1ecdc c\u1ee7a b\u00ean th\u1ee9 ba<\/a> h\u1ed7 tr\u1ee3 (n\u1ebfu thi\u1ebft b\u1ecb cho ph\u00e9p)<br><\/p><\/li><li><p>\u0110\u1ea3m b\u1ea3o firmware h\u1ed7 tr\u1ee3 c\u00e1c b\u1ed9 thu ph\u00e1t t\u1eeb nhi\u1ec1u nh\u00e0 cung c\u1ea5p<br><\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u00e2y l\u00e0 m\u1ed9t trong nh\u1eefng s\u1ef1 c\u1ed1 ph\u1ed5 bi\u1ebfn nh\u1ea5t trong m\u00f4i tr\u01b0\u1eddng doanh nghi\u1ec7p c\u00f3 ch\u00ednh s\u00e1ch OEM nghi\u00eam ng\u1eb7t.<br>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >\u25b6 Kh\u00f4ng kh\u1edbp t\u1ed1c \u0111\u1ed9 (xung \u0111\u1ed9t 1G so v\u1edbi 10G)<br><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>V\u1ea5n \u0111\u1ec1:<\/strong><br\/>M\u00f4-\u0111un SFP 1Gb kh\u00f4ng ho\u1ea1t \u0111\u1ed9ng tr\u00ean c\u1ed5ng SFP+ 10Gb ho\u1eb7c li\u00ean k\u1ebft kh\u00f4ng thi\u1ebft l\u1eadp \u0111\u01b0\u1ee3c.<br>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Nguy\u00ean nh\u00e2n ph\u1ed5 bi\u1ebfn:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>C\u1ed5ng SFP+ kh\u00f4ng h\u1ed7 tr\u1ee3 ch\u1ebf \u0111\u1ed9 tr\u1edf v\u1ec1 1G<br><\/p><\/li><li><p>C\u1ed5ng b\u1ecb \u00e9p ho\u1ea1t \u0111\u1ed9ng \u1edf ch\u1ebf \u0111\u1ed9 ch\u1ec9 10G<br><\/p><\/li><li><p>T\u1ef1 \u0111\u1ed9ng th\u01b0\u01a1ng l\u01b0\u1ee3ng b\u1ecb t\u1eaft ho\u1eb7c kh\u00f4ng \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3<br><\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>C\u00e1ch kh\u1eafc ph\u1ee5c:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Ki\u1ec3m tra xem c\u1ed5ng c\u00f3 h\u1ed7 tr\u1ee3 ho\u1ea1t \u0111\u1ed9ng hai t\u1ed1c \u0111\u1ed9 (1G\/10G) hay kh\u00f4ng<br><\/p><\/li><li><p>Thi\u1ebft l\u1eadp th\u1ee7 c\u00f4ng t\u1ed1c \u0111\u1ed9 giao di\u1ec7n th\u00e0nh 1G n\u1ebfu \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3<br><\/p><\/li><li><p>S\u1eed d\u1ee5ng m\u00f4-\u0111un g\u1ed1c<br> <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/476748.htm\">10G<br><\/a> n\u1ebfu c\u1ed5ng c\u1ed1 \u0111\u1ecbnh \u1edf 10G<br><\/p><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" >\u25b6 Kh\u00f4ng kh\u1edbp ch\u1ebf \u0111\u1ed9 duplex ho\u1eb7c ph\u01b0\u01a1ng ti\u1ec7n truy\u1ec1n d\u1eabn<br><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>V\u1ea5n \u0111\u1ec1:<\/strong><br\/>Li\u00ean k\u1ebft kh\u00f4ng \u1ed5n \u0111\u1ecbnh, ch\u1eadm ho\u1eb7c ng\u1eaft qu\u00e3ng.<br>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Nguy\u00ean nh\u00e2n ph\u1ed5 bi\u1ebfn:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>SFP \u0111\u1ed3ng tr\u1ee5c (1000BASE-T) \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i v\u1edbi c\u00e0i \u0111\u1eb7t duplex kh\u00f4ng \u0111\u00fang<br><\/p><\/li><li><p>Kh\u00f4ng kh\u1edbp s\u1ee3i quang gi\u1eefa s\u1ee3i \u0111\u01a1n mode v\u00e0 \u0111a mode<br><\/p><\/li><li><p>Xung \u0111\u1ed9t t\u1ef1 \u0111\u1ed9ng th\u01b0\u01a1ng l\u01b0\u1ee3ng tr\u00ean c\u00e1c li\u00ean k\u1ebft \u0111\u1ed3ng tr\u1ee5c<br><\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>C\u00e1ch kh\u1eafc ph\u1ee5c:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>\u0110\u1ea3m b\u1ea3o c\u1ea3 hai \u0111\u1ea7u s\u1eed d\u1ee5ng ch\u1ebf \u0111\u1ed9 duplex to\u00e0n ph\u1ea7n<br><\/p><\/li><li><p>Ph\u00f9 h\u1ee3p \u0111\u00fang lo\u1ea1i s\u1ee3i quang (SMF so v\u1edbi MMF)<br><\/p><\/li><li><p>B\u1eadt t\u1ef1 \u0111\u1ed9ng th\u01b0\u01a1ng l\u01b0\u1ee3ng \u0111\u1ed1i v\u1edbi c\u00e1c m\u00f4-\u0111un SFP d\u1ef1a tr\u00ean \u0111\u1ed3ng tr\u1ee5c<br><\/p><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" >\u25b6 Kh\u00f4ng kh\u1edbp lo\u1ea1i s\u1ee3i quang ho\u1eb7c b\u01b0\u1edbc s\u00f3ng<br><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>V\u1ea5n \u0111\u1ec1:<\/strong><br\/>Kh\u00f4ng c\u00f3 li\u00ean k\u1ebft d\u00f9 c\u1ea3 hai m\u00f4-\u0111un \u0111\u1ec1u hi\u1ec3n th\u1ecb tr\u1ea1ng th\u00e1i ho\u1ea1t \u0111\u1ed9ng.<br>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Nguy\u00ean nh\u00e2n ph\u1ed5 bi\u1ebfn:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/478230.htm\">SX 1G<br><\/a> \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng v\u1edbi s\u1ee3i quang \u0111\u01a1n mode<br><\/p><\/li><li><p><a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/476763.htm\">LX 1G<br><\/a> \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng tr\u00ean s\u1ee3i quang \u0111a mode m\u00e0 kh\u00f4ng c\u00f3 \u0111i\u1ec1u ki\u1ec7n ph\u00f9 h\u1ee3p<br><\/p><\/li><li><p>B\u01b0\u1edbc s\u00f3ng kh\u00e1c nhau \u1edf hai \u0111\u1ea7u<br><\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>C\u00e1ch kh\u1eafc ph\u1ee5c:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Kh\u1edbp ch\u00ednh x\u00e1c lo\u1ea1i SFP \u1edf c\u1ea3 hai \u0111\u1ea7u<br><\/p><\/li><li><p>X\u00e1c minh t\u00ednh t\u01b0\u01a1ng th\u00edch v\u1ec1 b\u01b0\u1edbc s\u00f3ng (sai l\u1ec7ch 850nm \u2194 1310nm g\u00e2y l\u1ed7i)<br><\/p><\/li><li><p>S\u1eed d\u1ee5ng d\u00e2y n\u1ed1i \u0111i\u1ec1u ki\u1ec7n ch\u1ebf \u0111\u1ed9 ph\u00f9 h\u1ee3p n\u1ebfu c\u1ea7n thi\u1ebft<br><\/p><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" >\u25b6 Kh\u00f3a nh\u00e0 s\u1ea3n xu\u1ea5t v\u00e0 h\u1ea1n ch\u1ebf firmware<br><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>V\u1ea5n \u0111\u1ec1:<\/strong><br\/>M\u00f4-\u0111un ho\u1ea1t \u0111\u1ed9ng tr\u00ean thi\u1ebft b\u1ecb n\u00e0y nh\u01b0ng th\u1ea5t b\u1ea1i tr\u00ean thi\u1ebft b\u1ecb kh\u00e1c.<br>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Nguy\u00ean nh\u00e2n ph\u1ed5 bi\u1ebfn:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>X\u00e1c th\u1ef1c firmware OEM nghi\u00eam ng\u1eb7t<br><\/p><\/li><li><p>Ti\u00eau chu\u1ea9n m\u00e3 h\u00f3a c\u1ee7a c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t kh\u00e1c nhau<br><\/p><\/li><li><p>Danh s\u00e1ch \u0111en thi\u1ebft b\u1ecb d\u00e0nh cho quang h\u1ecdc c\u1ee7a b\u00ean th\u1ee9 ba<br><\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>C\u00e1ch kh\u1eafc ph\u1ee5c:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>S\u1eed d\u1ee5ng c\u00e1c b\u1ed9 thu ph\u00e1t t\u01b0\u01a1ng th\u00edch \u0111\u00e3 \u0111\u01b0\u1ee3c ch\u1ee9ng nh\u1eadn v\u00e0 ki\u1ec3m tra tr\u00ean n\u1ec1n t\u1ea3ng c\u1ee7a b\u1ea1n<br><\/p><\/li><li><p>C\u1eadp nh\u1eadt firmware n\u1ebfu nh\u00e0 s\u1ea3n xu\u1ea5t \u0111\u00e3 b\u1ed5 sung h\u1ed7 tr\u1ee3 t\u01b0\u01a1ng th\u00edch r\u1ed9ng h\u01a1n<br><\/p><\/li><li><p>Ch\u1ecdn nh\u00e0 cung c\u1ea5p cung c\u1ea5p c\u00e1c m\u00f4-\u0111un SFP \u0111\u00e3 \u0111\u01b0\u1ee3c m\u00e3 h\u00f3a s\u1eb5n cho c\u00e1c th\u01b0\u01a1ng hi\u1ec7u c\u1ee5 th\u1ec3<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u0110i\u1ec3m c\u1ea7n l\u01b0u \u00fd ch\u00ednh<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">H\u1ea7u h\u1ebft c\u00e1c s\u1ef1 c\u1ed1 li\u00ean quan \u0111\u1ebfn SFP Gigabit kh\u00f4ng ph\u1ea3i ng\u1eabu nhi\u00ean\u2014m\u00e0 l\u00e0 c\u00e1c v\u1ea5n \u0111\u1ec1 t\u01b0\u01a1ng th\u00edch c\u00f3 th\u1ec3 d\u1ef1 \u0111o\u00e1n \u0111\u01b0\u1ee3c li\u00ean quan \u0111\u1ebfn t\u1ed1c \u0111\u1ed9, lo\u1ea1i s\u1ee3i quang, m\u00e3 h\u00f3a nh\u00e0 cung c\u1ea5p ho\u1eb7c l\u1ed7i c\u1ea5u h\u00ecnh. B\u1eb1ng c\u00e1ch ki\u1ec3m tra t\u1eebng y\u1ebfu t\u1ed1 m\u1ed9t c\u00e1ch h\u1ec7 th\u1ed1ng, k\u1ef9 s\u01b0 m\u1ea1ng c\u00f3 th\u1ec3 nhanh ch\u00f3ng x\u00e1c \u0111\u1ecbnh v\u00e0 kh\u1eafc ph\u1ee5c s\u1ef1 c\u1ed1, \u0111\u1ea3m b\u1ea3o k\u1ebft n\u1ed1i quang ho\u1eb7c \u0111\u1ed3ng \u1ed5n \u0111\u1ecbnh v\u00e0 \u0111\u00e1ng tin c\u1eady.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >\ud83d\udfe7 C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p v\u1ec1 b\u1ed9 thu ph\u00e1t SFP Gigabit<\/h2>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1200\" height=\"675\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/ea6ca03a868c4607a1ea2e3d859c2a0b.jpg\" alt=\"FAQ About Gigabit SFP Transceivers\" class=\"wp-image-2455\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/ea6ca03a868c4607a1ea2e3d859c2a0b.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/ea6ca03a868c4607a1ea2e3d859c2a0b-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/ea6ca03a868c4607a1ea2e3d859c2a0b-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/ea6ca03a868c4607a1ea2e3d859c2a0b-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/ea6ca03a868c4607a1ea2e3d859c2a0b-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" >C1. T\u00f4i c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng SFP 1G tr\u00ean c\u1ed5ng SFP+ kh\u00f4ng?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00f3, nh\u01b0ng ch\u1ec9 khi c\u1ed5ng SFP+ h\u1ed7 tr\u1ee3 kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch ng\u01b0\u1ee3c v\u1edbi t\u1ed1c \u0111\u1ed9 1G.<br\/>Nhi\u1ec1u switch doanh nghi\u1ec7p cho ph\u00e9p c\u1ed5ng SFP+ ho\u1ea1t \u0111\u1ed9ng \u1edf t\u1ed1c \u0111\u1ed9 1 Gbps, nh\u01b0ng m\u1ed9t s\u1ed1 kh\u00e1c ch\u1ec9 c\u1ed1 \u0111\u1ecbnh \u1edf 10 G.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>C\u00e1c \u0111i\u1ec3m ki\u1ec3m tra quan tr\u1ecdng:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Thi\u1ebft b\u1ecb c\u00f3 h\u1ed7 tr\u1ee3 t\u1ed1c \u0111\u1ed9 k\u00e9p (1G\/10G) kh\u00f4ng?<\/p><\/li><li><p>T\u1ed1c \u0111\u1ed9 c\u1ed5ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c thi\u1ebft l\u1eadp th\u1ee7 c\u00f4ng \u1edf m\u1ee9c 1G kh\u00f4ng?<\/p><\/li><li><p>Nh\u00e0 cung c\u1ea5p c\u00f3 cho ph\u00e9p s\u1eed d\u1ee5ng module quang c\u1ee7a b\u00ean th\u1ee9 ba ho\u1eb7c module c\u00f3 t\u1ed1c \u0111\u1ed9 h\u1ed7n h\u1ee3p kh\u00f4ng?<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">N\u1ebfu b\u1ea5t k\u1ef3 \u0111i\u1ec1u ki\u1ec7n n\u00e0o trong s\u1ed1 n\u00e0y kh\u00f4ng \u0111\u01b0\u1ee3c \u0111\u00e1p \u1ee9ng, module SFP 1G s\u1ebd kh\u00f4ng ho\u1ea1t \u0111\u1ed9ng.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >C2. T\u1ea1i sao module SFP c\u1ee7a t\u00f4i kh\u00f4ng ho\u1ea1t \u0111\u1ed9ng?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t module SFP kh\u00f4ng ho\u1ea1t \u0111\u1ed9ng th\u01b0\u1eddng do v\u1ea5n \u0111\u1ec1 t\u01b0\u01a1ng th\u00edch ho\u1eb7c c\u1ea5u h\u00ecnh ch\u1ee9 kh\u00f4ng ph\u1ea3i do h\u1ecfng ph\u1ea7n c\u1ee9ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>C\u00e1c nguy\u00ean nh\u00e2n ph\u1ed5 bi\u1ebfn nh\u1ea5t:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Lo\u1ea1i s\u1ee3i quang kh\u00f4ng \u0111\u00fang (l\u1ed7i kh\u1edbp gi\u1eefa s\u1ee3i \u0111\u01a1n mode v\u00e0 \u0111a mode)<\/p><\/li><li><p>L\u1ed7i kh\u1edbp t\u1ed1c \u0111\u1ed9 gi\u1eefa c\u00e1c c\u1ed5ng (<a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/difference-between-sfp-and-sfp-plus-transceivers\/\">1G so v\u1edbi 10G<\/a>)<\/p><\/li><li><p>Module thu ph\u00e1t kh\u00f4ng \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3 ho\u1eb7c b\u1ecb kh\u00f3a b\u1edfi nh\u00e0 cung c\u1ea5p<\/p><\/li><li><p>C\u00e1p s\u1ee3i quang b\u1ea9n ho\u1eb7c k\u1ebft n\u1ed1i kh\u00f4ng \u0111\u00fang c\u00e1ch<\/p><\/li><li><p>C\u1eb7p b\u01b0\u1edbc s\u00f3ng sai gi\u1eefa c\u00e1c module<\/p><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" >C3. S\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa 1000BASE-SX, LX v\u00e0 T l\u00e0 g\u00ec?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u00e2y l\u00e0 c\u00e1c chu\u1ea9n Ethernet Gigabit kh\u00e1c nhau:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>1000BASE-SX:<\/strong> S\u1ee3i quang \u0111a mode t\u1ea7m ng\u1eafn (l\u00ean t\u1edbi ~550 m)<\/p><\/li><li><p><strong>1000BASE-LX\/LH:<\/strong> S\u1ee3i quang \u0111\u01a1n mode t\u1ea7m xa (l\u00ean t\u1edbi ~10 km)<\/p><\/li><li><p><strong>1000BASE-T:<\/strong> Ethernet \u0111\u1ed3ng (RJ45, l\u00ean t\u1edbi 100 m)<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed7i lo\u1ea1i kh\u00f4ng th\u1ec3 thay th\u1ebf l\u1eabn nhau n\u1ebfu kh\u00f4ng ph\u00f9 h\u1ee3p v\u1ec1 ph\u01b0\u01a1ng ti\u1ec7n truy\u1ec1n d\u1eabn v\u00e0 chu\u1ea9n t\u01b0\u01a1ng \u1ee9ng.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >C4. T\u00f4i c\u00f3 th\u1ec3 tr\u1ed9n c\u00e1c th\u01b0\u01a1ng hi\u1ec7u SFP kh\u00e1c nhau trong c\u00f9ng m\u1ed9t m\u1ea1ng kh\u00f4ng?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00f3, nh\u01b0ng kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch ph\u1ee5 thu\u1ed9c v\u00e0o thi\u1ebft b\u1ecb.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>M\u1ed9t s\u1ed1 switch ch\u1ea5p nh\u1eadn module SFP t\u01b0\u01a1ng th\u00edch c\u1ee7a b\u00ean th\u1ee9 ba<\/p><\/li><li><p>M\u1ed9t s\u1ed1 kh\u00e1c y\u00eau c\u1ea7u module c\u00f3 m\u00e3 h\u00f3a c\u1ee7a nh\u00e0 cung c\u1ea5p<\/p><\/li><li><p>Vi\u1ec7c tr\u1ed9n th\u01b0\u01a1ng hi\u1ec7u ch\u1ec9 ho\u1ea1t \u0111\u1ed9ng n\u1ebfu c\u00e1c chu\u1ea9n quang h\u1ecdc (t\u1ed1c \u0111\u1ed9, <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/sfp-wavelengths-850nm-1310nm-1550nm-guide\/\">b\u01b0\u1edbc s\u00f3ng<\/a>, lo\u1ea1i s\u1ee3i quang) kh\u1edbp nhau<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Lu\u00f4n ki\u1ec3m tra ch\u00ednh s\u00e1ch t\u01b0\u01a1ng th\u00edch c\u1ee7a thi\u1ebft b\u1ecb tr\u01b0\u1edbc khi tri\u1ec3n khai.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >C5. \u201cLink down\u201d tr\u00ean c\u1ed5ng SFP ngh\u0129a l\u00e0 g\u00ec?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u201cLink down\u201d ngh\u0129a l\u00e0 k\u1ebft n\u1ed1i v\u1eadt l\u00fd ho\u1eb7c quang h\u1ecdc ch\u01b0a \u0111\u01b0\u1ee3c thi\u1ebft l\u1eadp.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>C\u00e1c nguy\u00ean nh\u00e2n c\u00f3 th\u1ec3 bao g\u1ed3m:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>S\u1ee3i quang ch\u01b0a \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i \u0111\u00fang c\u00e1ch ho\u1eb7c b\u1ecb \u0111\u1ea3o chi\u1ec1u<\/p><\/li><li><p>C\u00e1c lo\u1ea1i SFP kh\u00f4ng t\u01b0\u01a1ng th\u00edch \u1edf hai \u0111\u1ea7u k\u1ebft n\u1ed1i<\/p><\/li><li><p>L\u1ed7i kh\u1edbp t\u1ed1c \u0111\u1ed9 ho\u1eb7c duplex<\/p><\/li><li><p>M\u00f4-\u0111un l\u1ed7i ho\u1eb7c kh\u00f4ng \u0111\u01b0\u1ee3c nh\u1eadn d\u1ea1ng<\/p><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" >C\u00e2u h\u1ecfi 6. C\u00e1c m\u00f4-\u0111un SFP c\u00f3 h\u1ed7 tr\u1ee3 t\u1ef1 \u0111\u1ed9ng th\u01b0\u01a1ng l\u01b0\u1ee3ng kh\u00f4ng?<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>SFP s\u1ee3i quang (SX\/LX):<\/strong> Kh\u00f4ng s\u1eed d\u1ee5ng c\u01a1 ch\u1ebf t\u1ef1 \u0111\u1ed9ng th\u01b0\u01a1ng l\u01b0\u1ee3ng Ethernet truy\u1ec1n th\u1ed1ng<\/p><\/li><li><p><strong>SFP \u0111\u1ed3ng (1000BASE-T):<\/strong> Th\u01b0\u1eddng h\u1ed7 tr\u1ee3 t\u1ef1 \u0111\u1ed9ng th\u01b0\u01a1ng l\u01b0\u1ee3ng<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u00e2y l\u00e0 l\u00fd do v\u00ec sao vi\u1ec7c \u0111\u1ea3m b\u1ea3o t\u00ednh nh\u1ea5t qu\u00e1n trong c\u1ea5u h\u00ecnh \u1edf c\u1ea3 hai \u0111\u1ea7u l\u00e0 v\u00f4 c\u00f9ng quan tr\u1ecdng.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >C\u00e2u h\u1ecfi 7. T\u00f4i c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng m\u00f4-\u0111un SFP+ 10G trong c\u1ed5ng SFP 1G kh\u00f4ng?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Kh\u00f4ng.<br\/>M\u00f4-\u0111un SFP+ 10G kh\u00f4ng t\u01b0\u01a1ng th\u00edch ng\u01b0\u1ee3c v\u1edbi c\u00e1c c\u1ed5ng SFP ch\u1ec9 h\u1ed7 tr\u1ee3 1G do y\u00eau c\u1ea7u kh\u00e1c nhau v\u1ec1 \u0111i\u1ec7n v\u00e0 giao th\u1ee9c.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ph\u1ea7n l\u1edbn s\u1ef1 c\u1ed1 li\u00ean quan \u0111\u1ebfn b\u1ed9 thu ph\u00e1t SFP Gigabit b\u1eaft ngu\u1ed3n t\u1eeb nh\u1eefng gi\u1ea3 \u0111\u1ecbnh sai l\u1ec7ch v\u1ec1 kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch ch\u1ee9 kh\u00f4ng ph\u1ea3i do l\u1ed7i ph\u1ea7n c\u1ee9ng. B\u1eb1ng c\u00e1ch hi\u1ec3u r\u00f5 kh\u1ea3 n\u0103ng c\u1ee7a c\u1ed5ng, ti\u00eau chu\u1ea9n s\u1ee3i quang v\u00e0 c\u00e1c h\u1ea1n ch\u1ebf c\u1ee7a nh\u00e0 cung c\u1ea5p, b\u1ea1n c\u00f3 th\u1ec3 lo\u1ea1i b\u1ecf h\u1ea7u h\u1ebft c\u00e1c v\u1ea5n \u0111\u1ec1 tri\u1ec3n khai tr\u01b0\u1edbc khi ch\u00fang x\u1ea3y ra.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >\ud83d\udfe7 K\u1ebft lu\u1eadn: B\u1ea1n n\u00ean mua b\u1ed9 thu ph\u00e1t SFP Gigabit n\u00e0o?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c l\u1ef1a ch\u1ecdn b\u1ed9 thu ph\u00e1t SFP Gigabit ph\u00f9 h\u1ee3p cu\u1ed1i c\u00f9ng ph\u1ee5 thu\u1ed9c v\u00e0o vi\u1ec7c b\u1ea1n hi\u1ec3u r\u00f5 m\u00f4i tr\u01b0\u1eddng m\u1ea1ng, y\u00eau c\u1ea7u t\u01b0\u01a1ng th\u00edch v\u00e0 nhu c\u1ea7u m\u1edf r\u1ed9ng quy m\u00f4 trong t\u01b0\u01a1ng lai. M\u1eb7c d\u00f9 t\u1ea5t c\u1ea3 c\u00e1c m\u00f4-\u0111un SFP \u0111\u1ec1u ph\u1ee5c v\u1ee5 c\u00f9ng m\u1ed9t m\u1ee5c \u0111\u00edch c\u01a1 b\u1ea3n\u2014cho ph\u00e9p truy\u1ec1n d\u1eef li\u1ec7u \u1edf t\u1ed1c \u0111\u1ed9 1 Gbps\u2014vi\u1ec7c l\u1ef1a ch\u1ecdn \u0111\u00fang l\u1ea1i ph\u1ee5 thu\u1ed9c v\u00e0o m\u1ed9t quy tr\u00ecnh ra quy\u1ebft \u0111\u1ecbnh c\u00f3 h\u1ec7 th\u1ed1ng thay v\u00ec \u00e1p d\u1ee5ng gi\u1ea3i ph\u00e1p \u201cm\u1ed9t k\u00edch c\u1ee1 ph\u00f9 h\u1ee3p v\u1edbi t\u1ea5t c\u1ea3\u201d.<\/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\/92208288d4c4401a847b70a196d9860f.jpg\" alt=\"Which Gigabit SFP Transceiver Should You Buy?\" class=\"wp-image-2456\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/92208288d4c4401a847b70a196d9860f.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/92208288d4c4401a847b70a196d9860f-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/92208288d4c4401a847b70a196d9860f-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/92208288d4c4401a847b70a196d9860f-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/92208288d4c4401a847b70a196d9860f-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">N\u1ebfu m\u1ea1ng c\u1ee7a b\u1ea1n d\u1ef1a tr\u00ean c\u00e1c k\u1ebft n\u1ed1i kho\u1ea3ng c\u00e1ch ng\u1eafn trong c\u00f9ng m\u1ed9t t\u00f2a nh\u00e0 ho\u1eb7c t\u1ee7 rack, th\u00ec SFP s\u1ee3i quang \u0111a mode <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/482145.htm\">1000BASE-SX<\/a> th\u01b0\u1eddng l\u00e0 l\u1ef1a ch\u1ecdn ti\u1ebft ki\u1ec7m chi ph\u00ed v\u00e0 \u0111\u00e1ng tin c\u1eady nh\u1ea5t. \u0110\u1ed1i v\u1edbi c\u00e1c kho\u1ea3ng c\u00e1ch d\u00e0i h\u01a1n nh\u01b0 gi\u1eefa c\u00e1c t\u00f2a nh\u00e0 trong khu\u00f4n vi\u00ean tr\u01b0\u1eddng ho\u1eb7c gi\u1eefa c\u00e1c t\u00f2a nh\u00e0, m\u00f4-\u0111un s\u1ee3i quang \u0111\u01a1n mode <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/477871.htm\">1000BASE-LX\/LH<\/a> cung c\u1ea5p ph\u1ea1m vi v\u00e0 \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh c\u1ea7n thi\u1ebft. Trong c\u00e1c m\u00f4i tr\u01b0\u1eddng kh\u00f4ng c\u00f3 s\u1eb5n s\u1ee3i quang ho\u1eb7c \u01b0u ti\u00ean c\u00e1p \u0111\u1ed3ng, m\u00f4-\u0111un <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/476781.htm\">SFP RJ45<\/a> 1000BASE-T.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">mang l\u1ea1i m\u1ed9t gi\u1ea3i ph\u00e1p thay th\u1ebf th\u1ef1c t\u1ebf cho kho\u1ea3ng c\u00e1ch l\u00ean t\u1edbi 100 m\u00e9t.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Tuy nhi\u00ean, ngo\u00e0i y\u1ebfu t\u1ed1 kho\u1ea3ng c\u00e1ch v\u00e0 lo\u1ea1i ph\u01b0\u01a1ng ti\u1ec7n truy\u1ec1n d\u1eabn, y\u1ebfu t\u1ed1 quan tr\u1ecdng nh\u1ea5t l\u00e0 kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch. B\u1ea1n ph\u1ea3i \u0111\u1ea3m b\u1ea3o r\u1eb1ng:<\/p><\/li><li><p>Thi\u1ebft b\u1ecb c\u1ee7a b\u1ea1n h\u1ed7 tr\u1ee3 lo\u1ea1i SFP v\u00e0 t\u1ed1c \u0111\u1ed9 y\u00eau c\u1ea7u<\/p><\/li><li><p>C\u1ed5ng c\u00f3 th\u1ec3 ho\u1ea1t \u0111\u1ed9ng \u1edf t\u1ed1c \u0111\u1ed9 1G ho\u1eb7c t\u01b0\u01a1ng th\u00edch v\u1edbi c\u00e1c ch\u1ebf \u0111\u1ed9 t\u1ed1c \u0111\u1ed9 k\u00e9p SFP\/SFP+<\/p><\/li><li><p>M\u00f4-\u0111un ph\u00f9 h\u1ee3p v\u1edbi lo\u1ea1i s\u1ee3i quang, b\u01b0\u1edbc s\u00f3ng v\u00e0 ti\u00eau chu\u1ea9n \u0111\u1ea7u n\u1ed1i \u0111\u00fang<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Trong c\u00e1c tri\u1ec3n khai th\u1ef1c t\u1ebf, ph\u1ea7n l\u1edbn s\u1ef1 c\u1ed1 kh\u00f4ng b\u1eaft ngu\u1ed3n t\u1eeb b\u1ed9 thu ph\u00e1t (transceiver) m\u00e0 do k\u1ef3 v\u1ecdng kh\u00f4ng kh\u1edbp gi\u1eefa kh\u1ea3 n\u0103ng c\u1ed5ng v\u00e0 c\u1ea5u h\u00ecnh m\u00f4-\u0111un. M\u1ed9t quy tr\u00ecnh l\u1ef1a ch\u1ecdn c\u1ea9n th\u1eadn s\u1ebd gi\u00fap lo\u1ea1i b\u1ecf c\u00e1c s\u1ef1 c\u1ed1 li\u00ean k\u1ebft, gi\u1ea3m th\u1eddi gian kh\u1eafc ph\u1ee5c s\u1ef1 c\u1ed1 v\u00e0 \u0111\u1ea3m b\u1ea3o hi\u1ec7u su\u1ea5t \u1ed5n \u0111\u1ecbnh trong th\u1eddi gian d\u00e0i.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >Khuy\u1ebfn ngh\u1ecb cu\u1ed1i c\u00f9ng<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Thay v\u00ec ch\u1ec9 t\u1eadp trung v\u00e0o gi\u00e1 c\u1ea3 ho\u1eb7c th\u01b0\u01a1ng hi\u1ec7u, h\u00e3y \u01b0u ti\u00ean t\u00ednh t\u01b0\u01a1ng th\u00edch, y\u00eau c\u1ea7u truy\u1ec1n d\u1eabn v\u00e0 hi\u1ec7u su\u1ea5t \u0111\u00e3 \u0111\u01b0\u1ee3c x\u00e1c minh. M\u1ed9t b\u1ed9 thu ph\u00e1t Gigabit SFP ph\u00f9 h\u1ee3p lu\u00f4n mang l\u1ea1i \u0111\u1ed9 tin c\u1eady cao h\u01a1n so v\u1edbi c\u00e1c l\u1ef1a ch\u1ecdn b\u1ecb qu\u00e1 th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt ho\u1eb7c kh\u00f4ng t\u01b0\u01a1ng th\u00edch.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">N\u1ebfu b\u1ea1n \u0111ang t\u00ecm ki\u1ebfm c\u00e1c b\u1ed9 thu ph\u00e1t Gigabit SFP \u0111\u00e1ng tin c\u1eady, \u0111\u00e3 \u0111\u01b0\u1ee3c ki\u1ec3m tra \u0111\u1ea7y \u0111\u1ee7 v\u00e0 c\u00f3 kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch m\u1ea1nh m\u1ebd tr\u00ean c\u00e1c n\u1ec1n t\u1ea3ng c\u00f4ng t\u1eafc ch\u00ednh, b\u1ea1n c\u00f3 th\u1ec3 kh\u00e1m ph\u00e1 c\u00e1c gi\u1ea3i ph\u00e1p \u0111\u00e3 \u0111\u01b0\u1ee3c chuy\u00ean gia x\u00e1c th\u1ef1c t\u1eeb c\u00e1c nh\u00e0 cung c\u1ea5p uy t\u00edn nh\u01b0 <a target=\"_self\" href=\"https:\/\/www.l-p.com\/\"><strong>C\u1eeda h\u00e0ng Ch\u00ednh th\u1ee9c LINK-PP<\/strong><\/a>, \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 ho\u1ea1t \u0111\u1ed9ng \u1ed5n \u0111\u1ecbnh trong c\u00e1c m\u00f4i tr\u01b0\u1eddng doanh nghi\u1ec7p v\u00e0 vi\u1ec5n th\u00f4ng.<\/p>\n\n\n\n<div><div widgetid=\"ca8b7315766111f0be050a37e7beaac1\" format=\"embedded\" data-widget-id=\"ca8b7315766111f0be050a37e7beaac1\" data-mode=\"production.zh\" style=\"display: block;\"><\/div><\/div>\n\n\n\n<script src=\"https:\/\/cdn.mylandingpages.co\/widgets\/platform\/platform.widget.js\" async=\"true\"><\/script>","protected":false},"excerpt":{"rendered":"<p>T\u00ecm hi\u1ec3u Gigabit SFP transceiver l\u00e0 g\u00ec, so s\u00e1nh c\u00e1c l\u1ef1a ch\u1ecdn 1000BASE-SX, LX v\u00e0 T, \u0111\u1ed3ng th\u1eddi t\u1ef1 tin gi\u1ea3i quy\u1ebft c\u00e1c v\u1ea5n \u0111\u1ec1 ph\u1ed5 bi\u1ebfn v\u1ec1 kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch v\u00e0 thi\u1ebft l\u1eadp.<\/p>","protected":false},"author":1,"featured_media":2457,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[28],"tags":[15],"class_list":["post-2458","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-products","tag-link-pp-1g-sfp-modules"],"blocksy_meta":[],"acf":[],"_links":{"self":[{"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/2458","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=2458"}],"version-history":[{"count":4,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/2458\/revisions"}],"predecessor-version":[{"id":10703,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/2458\/revisions\/10703"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/media\/2457"}],"wp:attachment":[{"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/media?parent=2458"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/categories?post=2458"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/tags?post=2458"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}