{"id":3065,"date":"2026-03-13T00:00:00","date_gmt":"2026-03-13T00:00:00","guid":{"rendered":"https:\/\/lp.szlogic.cn\/knowledge-center\/are-sfp-modules-hot-swappable-safe-sfp-hot-swap-guide\/"},"modified":"2026-06-22T03:59:37","modified_gmt":"2026-06-22T03:59:37","slug":"are-sfp-modules-hot-swappable-safe-sfp-hot-swap-guide","status":"publish","type":"post","link":"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/are-sfp-modules-hot-swappable-safe-sfp-hot-swap-guide","title":{"rendered":"C\u00e1c m\u00f4-\u0111un SFP c\u00f3 h\u1ed7 tr\u1ee3 thay th\u1ebf n\u00f3ng kh\u00f4ng? H\u01b0\u1edbng d\u1eabn thay th\u1ebf n\u00f3ng SFP an to\u00e0n"},"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\/6be12a64adfd4a099a36175571cbeded-1024x536.jpg\" alt=\"Are SFP Modules Hot-Swappable? Safe SFP Hot Swapping Guide\" class=\"wp-image-3055\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/6be12a64adfd4a099a36175571cbeded-1024x536.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/6be12a64adfd4a099a36175571cbeded-300x157.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/6be12a64adfd4a099a36175571cbeded-768x402.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/6be12a64adfd4a099a36175571cbeded-18x9.jpg 18w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/6be12a64adfd4a099a36175571cbeded.jpg 1200w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Trong c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng m\u1ea1ng hi\u1ec7n \u0111\u1ea1i, c\u00e1c b\u1ed9 thu ph\u00e1t SFP (<a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/sfp-small-form-factor-pluggable-transceiver-guide\/\">Typical Medium<\/a>) \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i \u0111\u1ec3 cung c\u1ea5p kh\u1ea3 n\u0103ng k\u1ebft n\u1ed1i quang h\u1ecdc ho\u1eb7c \u0111\u1ed3ng linh ho\u1ea1t cho c\u00e1c b\u1ed9 chuy\u1ec3n m\u1ea1ch, b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn v\u00e0 card giao di\u1ec7n m\u1ea1ng. V\u00ec nh\u1eefng m\u00f4-\u0111un n\u00e0y \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf d\u01b0\u1edbi d\u1ea1ng giao di\u1ec7n c\u00f3 th\u1ec3 c\u1eafm r\u1eddi, c\u00e1c k\u1ef9 s\u01b0 m\u1ea1ng th\u01b0\u1eddng \u0111\u1eb7t ra m\u1ed9t c\u00e2u h\u1ecfi th\u1ef1c t\u1ebf trong qu\u00e1 tr\u00ecnh b\u1ea3o tr\u00ec ho\u1eb7c n\u00e2ng c\u1ea5p: <strong>li\u1ec7u c\u00e1c m\u00f4-\u0111un SFP c\u00f3 th\u1ec3 thay th\u1ebf n\u00f3ng hay kh\u00f4ng?<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Trong h\u1ea7u h\u1ebft c\u00e1c m\u00f4i tr\u01b0\u1eddng m\u1ea1ng doanh nghi\u1ec7p, kh\u1ea3 n\u0103ng thay th\u1ebf ph\u1ea7n c\u1ee9ng m\u00e0 kh\u00f4ng c\u1ea7n t\u1eaft thi\u1ebft b\u1ecb l\u00e0 \u0111i\u1ec1u thi\u1ebft y\u1ebfu nh\u1eb1m duy tr\u00ec th\u1eddi gian ho\u1ea1t \u0111\u1ed9ng li\u00ean t\u1ee5c. C\u00e1c trung t\u00e2m d\u1eef li\u1ec7u, m\u1ea1ng vi\u1ec5n th\u00f4ng v\u00e0 b\u1ed9 chuy\u1ec3n m\u1ea1ch doanh nghi\u1ec7p th\u01b0\u1eddng \u0111\u01b0\u1ee3c k\u1ef3 v\u1ecdng v\u1eadn h\u00e0nh li\u00ean t\u1ee5c; th\u1eadm ch\u00ed c\u00e1c gi\u00e1n \u0111o\u1ea1n d\u1ecbch v\u1ee5 ng\u1eafn c\u0169ng c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn c\u00e1c \u1ee9ng d\u1ee5ng quan tr\u1ecdng. Do \u0111\u00f3, nhi\u1ec1u thi\u1ebft b\u1ecb m\u1ea1ng h\u1ed7 tr\u1ee3 thay th\u1ebf n\u00f3ng, cho ph\u00e9p ch\u00e8n ho\u1eb7c th\u00e1o m\u1ed9t s\u1ed1 th\u00e0nh ph\u1ea7n khi h\u1ec7 th\u1ed1ng v\u1eabn \u0111ang \u0111\u01b0\u1ee3c c\u1ea5p \u0111i\u1ec7n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Theo \u0111\u1eb7c t\u1ea3 v\u00e0 h\u01b0\u1edbng d\u1eabn l\u1eafp \u0111\u1eb7t ph\u1ea7n c\u1ee9ng t\u1eeb c\u00e1c nh\u00e0 cung c\u1ea5p m\u1ea1ng h\u00e0ng \u0111\u1ea7u nh\u01b0 Cisco, Juniper Networks v\u00e0 Arista Networks, <a target=\"_self\" href=\"https:\/\/www.l-p.com\/store-26155-1g-sfp.htm\">SFP<\/a> and <a target=\"_self\" href=\"https:\/\/www.l-p.com\/store-26192-10g-sfp.htm\">SFP+<\/a> c\u00e1c m\u00f4-\u0111un thu ph\u00e1t \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf l\u00e0 c\u00e1c thi\u1ebft b\u1ecb I\/O c\u00f3 th\u1ec3 thay th\u1ebf n\u00f3ng. \u0110i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0, trong \u0111i\u1ec1u ki\u1ec7n v\u1eadn h\u00e0nh b\u00ecnh th\u01b0\u1eddng, m\u1ed9t m\u00f4-\u0111un SFP c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c ch\u00e8n v\u00e0o ho\u1eb7c th\u00e1o ra kh\u1ecfi c\u1ed5ng t\u01b0\u01a1ng th\u00edch m\u00e0 kh\u00f4ng c\u1ea7n t\u1eaft ngu\u1ed3n b\u1ed9 chuy\u1ec3n m\u1ea1ch ho\u1eb7c b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn. Giao di\u1ec7n m\u1ea1ng th\u01b0\u1eddng t\u1ef1 \u0111\u1ed9ng ph\u00e1t hi\u1ec7n m\u00f4-\u0111un m\u1edbi v\u00e0 kh\u1edfi t\u1ea1o li\u00ean k\u1ebft quang h\u1ecdc ho\u1eb7c \u0111\u1ed3ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Tuy nhi\u00ean, m\u1eb7c d\u00f9 kh\u1ea3 n\u0103ng thay th\u1ebf n\u00f3ng SFP \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3 theo thi\u1ebft k\u1ebf, vi\u1ec7c v\u1eadn h\u00e0nh th\u1ef1c t\u1ebf kh\u00f4ng ph\u1ea3i l\u00fac n\u00e0o c\u0169ng \u0111\u01a1n gi\u1ea3n nh\u01b0 r\u00fat c\u00e1p. C\u00e1c cu\u1ed9c th\u1ea3o lu\u1eadn gi\u1eefa c\u00e1c k\u1ef9 s\u01b0 m\u1ea1ng tr\u00ean c\u00e1c di\u1ec5n \u0111\u00e0n k\u1ef9 thu\u1eadt v\u00e0 c\u1ed9ng \u0111\u1ed3ng nh\u01b0 Reddit v\u00e0 Stack Exchange ti\u1ebft l\u1ed9 m\u1ed9t s\u1ed1 v\u1ea5n \u0111\u1ec1 th\u1ef1c ti\u1ec5n c\u1ea7n l\u01b0u \u00fd:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>t\u00ednh t\u01b0\u01a1ng th\u00edch gi\u1eefa b\u1ed9 chuy\u1ec3n m\u1ea1ch v\u00e0 c\u00e1c m\u00f4-\u0111un thu ph\u00e1t c\u1ee7a b\u00ean th\u1ee9 ba<\/p><\/li>\n\n\n\n<li><p>r\u1ee7i ro ph\u00f3ng \u0111i\u1ec7n t\u0129nh (ESD) ti\u1ec1m \u1ea9n<\/p><\/li>\n\n\n\n<li><p>s\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa <a href=\"https:\/\/www.l-p.com\/products\/478228.htm\" target=\"_self\">SFP quang t\u01b0\u01a1ng th\u00edch<\/a> v\u00e0 RJ45 <a href=\"https:\/\/www.l-p.com\/products\/476813.htm\" target=\"_self\">C\u00e1c m\u00f4-\u0111un SFP \u0111\u1ed3ng<\/a><\/p><\/li>\n\n\n\n<li><p>vi\u1ec7c giao di\u1ec7n \u0111\u00f4i khi b\u1ecb reset ho\u1eb7c t\u00e1i th\u01b0\u01a1ng l\u01b0\u1ee3ng li\u00ean k\u1ebft sau khi thay th\u1ebf<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Nh\u1eefng y\u1ebfu t\u1ed1 n\u00e0y c\u00f3 ngh\u0129a l\u00e0 <a target=\"_self\" href=\"https:\/\/www.l-p.com\/store-25432-optics-transceivers-sfp-modules.htm\">C\u00e1c m\u00f4-\u0111un SFP<\/a> c\u00e1c m\u00f4-\u0111un SFP n\u00f3i chung c\u00f3 th\u1ec3 thay th\u1ebf n\u00f3ng, nh\u01b0ng vi\u1ec7c thay th\u1ebf an to\u00e0n v\u1eabn \u0111\u00f2i h\u1ecfi thao t\u00e1c x\u1eed l\u00fd \u0111\u00fang c\u00e1ch v\u00e0 tu\u00e2n th\u1ee7 c\u00e1c ph\u01b0\u01a1ng ph\u00e1p th\u1ef1c h\u00e0nh t\u1ed1t nh\u1ea5t.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">H\u01b0\u1edbng d\u1eabn n\u00e0y gi\u1ea3i th\u00edch c\u00e1ch th\u1ee9c thay th\u1ebf n\u00f3ng SFP ho\u1ea1t \u0111\u1ed9ng, khi n\u00e0o th\u00ec an to\u00e0n \u0111\u1ec3 thay th\u1ebf m\u00f4-\u0111un SFP m\u00e0 kh\u00f4ng c\u1ea7n t\u1eaft b\u1ed9 chuy\u1ec3n m\u1ea1ch, v\u00e0 nh\u1eefng bi\u1ec7n ph\u00e1p ph\u00f2ng ng\u1eeba n\u00e0o c\u00e1c k\u1ef9 s\u01b0 m\u1ea1ng n\u00ean th\u1ef1c hi\u1ec7n. B\u1eb1ng c\u00e1ch hi\u1ec3u r\u00f5 c\u1ea3 \u0111\u1eb7c t\u1ea3 c\u1ee7a nh\u00e0 cung c\u1ea5p l\u1eabn kinh nghi\u1ec7m v\u1eadn h\u00e0nh th\u1ef1c t\u1ebf, b\u1ea1n c\u00f3 th\u1ec3 th\u1ef1c hi\u1ec7n vi\u1ec7c thay th\u1ebf m\u00f4-\u0111un SFP m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3 \u0111\u1ed3ng th\u1eddi gi\u1ea3m thi\u1ec3u nguy c\u01a1 gi\u00e1n \u0111o\u1ea1n m\u1ea1ng.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u2747\ufe0f \u201cThay th\u1ebf n\u00f3ng\u201d ngh\u0129a l\u00e0 g\u00ec \u0111\u1ed1i v\u1edbi c\u00e1c m\u00f4-\u0111un SFP?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Trong ph\u1ea7n c\u1ee9ng m\u1ea1ng, thu\u1eadt ng\u1eef \u201cthay th\u1ebf n\u00f3ng\u201d \u0111\u1ec1 c\u1eadp \u0111\u1ebfn kh\u1ea3 n\u0103ng ch\u00e8n ho\u1eb7c th\u00e1o m\u1ed9t th\u00e0nh ph\u1ea7n ra kh\u1ecfi thi\u1ebft b\u1ecb m\u00e0 kh\u00f4ng c\u1ea7n t\u1eaft h\u1ec7 th\u1ed1ng ho\u1eb7c ng\u1eaft ngu\u1ed3n \u0111i\u1ec7n. Kh\u1ea3 n\u0103ng n\u00e0y \u0111\u1eb7c bi\u1ec7t quan tr\u1ecdng trong c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng m\u1ea1ng hi\u1ec7n \u0111\u1ea1i, n\u01a1i c\u00e1c b\u1ed9 chuy\u1ec3n m\u1ea1ch, b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn v\u00e0 m\u00e1y ch\u1ee7 \u0111\u01b0\u1ee3c k\u1ef3 v\u1ecdng v\u1eadn h\u00e0nh li\u00ean t\u1ee5c v\u1edbi th\u1eddi gian ng\u1eebng ho\u1ea1t \u0111\u1ed9ng t\u1ed1i thi\u1ec3u.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a target=\"_self\" href=\"https:\/\/www.l-p.com\/store-25832-1-2-4g-transceiver-modules.htm\">SFP c\u1ee7a b\u00ean th\u1ee9 ba<\/a> C\u00e1c m\u00f4-\u0111un SFP \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1eb7c bi\u1ec7t nh\u1eb1m h\u1ed7 tr\u1ee3 ki\u1ebfn tr\u00fac m\u00f4-\u0111un v\u00e0 d\u1ec5 b\u1ea3o tr\u00ec n\u00e0y. V\u00ec c\u00e1c c\u1ed5ng m\u1ea1ng th\u01b0\u1eddng c\u1ea7n thay \u0111\u1ed5i gi\u1eefa c\u00e1c lo\u1ea1i s\u1ee3i quang, b\u01b0\u1edbc s\u00f3ng ho\u1eb7c kho\u1ea3ng c\u00e1ch truy\u1ec1n d\u1eabn, n\u00ean c\u00e1c b\u1ed9 thu ph\u00e1t c\u00f3 th\u1ec3 th\u00e1o r\u1eddi cung c\u1ea5p m\u1ed9t c\u00e1ch linh ho\u1ea1t \u0111\u1ec3 \u0111i\u1ec1u ch\u1ec9nh giao di\u1ec7n m\u1ea1ng m\u00e0 kh\u00f4ng c\u1ea7n thay th\u1ebf to\u00e0n b\u1ed9 thi\u1ebft b\u1ecb.<\/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\/e6a38b811f694a7587c224ddf63039de.jpg\" alt=\"What Does \u201cHot-Swappable\u201d Mean in SFP Modules?\" class=\"wp-image-3056\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/e6a38b811f694a7587c224ddf63039de.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/e6a38b811f694a7587c224ddf63039de-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/e6a38b811f694a7587c224ddf63039de-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/e6a38b811f694a7587c224ddf63039de-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/e6a38b811f694a7587c224ddf63039de-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">\u0110\u1ecbnh ngh\u0129a v\u1ec1 ph\u1ea7n c\u1ee9ng c\u00f3 th\u1ec3 thay th\u1ebf n\u00f3ng<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Ph\u1ea7n c\u1ee9ng c\u00f3 th\u1ec3 thay th\u1ebf n\u00f3ng l\u00e0 b\u1ea5t k\u1ef3 th\u00e0nh ph\u1ea7n n\u00e0o c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c <strong>l\u1eafp \u0111\u1eb7t ho\u1eb7c thay th\u1ebf trong khi thi\u1ebft b\u1ecb v\u1eabn \u0111\u01b0\u1ee3c c\u1ea5p \u0111i\u1ec7n v\u00e0 \u0111ang v\u1eadn h\u00e0nh<\/strong>. Trong m\u00f4i tr\u01b0\u1eddng m\u1ea1ng, thi\u1ebft k\u1ebf n\u00e0y cho ph\u00e9p qu\u1ea3n tr\u1ecb vi\u00ean b\u1ea3o tr\u00ec ho\u1eb7c n\u00e2ng c\u1ea5p ph\u1ea7n c\u1ee9ng m\u00e0 kh\u00f4ng c\u1ea7n t\u1eaft c\u00e1c d\u1ecbch v\u1ee5 quan tr\u1ecdng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c th\u00e0nh ph\u1ea7n th\u01b0\u1eddng c\u00f3 th\u1ec3 thay th\u1ebf n\u00f3ng trong thi\u1ebft b\u1ecb m\u1ea1ng doanh nghi\u1ec7p bao g\u1ed3m:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>B\u1ed9 thu ph\u00e1t quang SFP v\u00e0 SFP+<\/p><\/li>\n\n\n\n<li><p><a href=\"https:\/\/www.l-p.com\/store-26153-40g-qsfp.htm\" target=\"_self\">B\u1ed9 thu ph\u00e1t QSFP<\/a> \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho c\u00e1c li\u00ean k\u1ebft t\u1ed1c \u0111\u1ed9 cao<\/p><\/li>\n\n\n\n<li><p>C\u00e1c m\u00f4-\u0111un ngu\u1ed3n trong c\u00e1c b\u1ed9 chuy\u1ec3n m\u1ea1ch c\u00f3 c\u1ea5u tr\u00fac m\u00f4-\u0111un<\/p><\/li>\n\n\n\n<li><p>Qu\u1ea1t l\u00e0m m\u00e1t trong c\u00e1c h\u1ec7 th\u1ed1ng \u0111\u1ed9 s\u1eb5n s\u00e0ng cao<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c nh\u00e0 cung c\u1ea5p thi\u1ebft b\u1ecb m\u1ea1ng nh\u01b0 Cisco v\u00e0 Juniper Networks m\u00f4 t\u1ea3 c\u00e1c m\u00f4-\u0111un thu ph\u00e1t SFP l\u00e0 c\u00e1c thi\u1ebft b\u1ecb I\/O c\u00f3 th\u1ec3 c\u1eafm n\u00f3ng <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/understanding-io-modules-in-automation-and-networking\/\">Thi\u1ebft b\u1ecb nh\u1eadp\/xu\u1ea5t<\/a>, ngh\u0129a l\u00e0 h\u1ec7 th\u1ed1ng t\u1ef1 \u0111\u1ed9ng nh\u1eadn di\u1ec7n m\u00f4-\u0111un ngay khi n\u00f3 \u0111\u01b0\u1ee3c ch\u00e8n v\u00e0o c\u1ed5ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ki\u1ebfn tr\u00fac c\u00f3 th\u1ec3 c\u1eafm n\u00f3ng n\u00e0y l\u00e0 m\u1ed9t trong nh\u1eefng l\u00fd do ch\u00ednh khi\u1ebfn c\u00e1c m\u00f4-\u0111un SFP tr\u1edf th\u00e0nh giao di\u1ec7n ti\u00eau chu\u1ea9n cho nhi\u1ec1u h\u1ec7 th\u1ed1ng m\u1ea1ng Ethernet v\u00e0 quang h\u1ecdc.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">C\u01a1 ch\u1ebf thay th\u1ebf n\u00f3ng trong thi\u1ebft b\u1ecb m\u1ea1ng ho\u1ea1t \u0111\u1ed9ng nh\u01b0 th\u1ebf n\u00e0o<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Thay th\u1ebf n\u00f3ng ho\u1ea1t \u0111\u1ed9ng nh\u1edd ph\u1ea7n c\u1ee9ng v\u00e0 firmware c\u1ee7a thi\u1ebft b\u1ecb m\u1ea1ng \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 ph\u00e1t hi\u1ec7n v\u00e0 kh\u1edfi t\u1ea1o c\u00e1c m\u00f4-\u0111un thu ph\u00e1t m\u1ed9t c\u00e1ch \u0111\u1ed9ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Khi m\u1ed9t m\u00f4-\u0111un SFP \u0111\u01b0\u1ee3c ch\u00e8n v\u00e0o c\u1ed5ng c\u1ee7a b\u1ed9 chuy\u1ec3n m\u1ea1ch ho\u1eb7c b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn, m\u1ed9t lo\u1ea1t quy tr\u00ecnh x\u1ea3y ra:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><p><strong>Ph\u00e1t hi\u1ec7n \u0111i\u1ec7n<\/strong> \u2013 Thi\u1ebft b\u1ecb ph\u00e1t hi\u1ec7n r\u1eb1ng m\u1ed9t m\u00f4-\u0111un \u0111\u00e3 \u0111\u01b0\u1ee3c ch\u00e8n v\u00e0o khoang SFP.<\/p><\/li>\n\n\n\n<li><p><strong>\u0110\u1ecdc EEPROM<\/strong> \u2013 H\u1ec7 th\u1ed1ng \u0111\u1ecdc th\u00f4ng tin nh\u1eadn d\u1ea1ng \u0111\u01b0\u1ee3c l\u01b0u tr\u1eef b\u00ean trong m\u00f4-\u0111un, ch\u1eb3ng h\u1ea1n nh\u01b0 t\u00ean nh\u00e0 s\u1ea3n xu\u1ea5t, t\u1ed1c \u0111\u1ed9 d\u1eef li\u1ec7u h\u1ed7 tr\u1ee3 v\u00e0 b\u01b0\u1edbc s\u00f3ng.<\/p><\/li>\n\n\n\n<li><p><strong>Kh\u1edfi t\u1ea1o giao di\u1ec7n<\/strong> \u2013 C\u1ed5ng m\u1ea1ng c\u1ea5u h\u00ecnh c\u00e1c th\u00f4ng s\u1ed1 \u0111i\u1ec7n v\u00e0 quang h\u1ecdc ph\u00f9 h\u1ee3p.<\/p><\/li>\n\n\n\n<li><p><strong>Th\u01b0\u01a1ng l\u01b0\u1ee3ng li\u00ean k\u1ebft<\/strong> \u2013 N\u1ebfu thi\u1ebft b\u1ecb \u1edf \u0111\u1ea7u xa \u0111\u00e3 \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i, giao di\u1ec7n s\u1ebd thi\u1ebft l\u1eadp li\u00ean k\u1ebft m\u1ea1ng.<\/p><\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">Qu\u00e1 tr\u00ecnh n\u00e0y th\u01b0\u1eddng ch\u1ec9 m\u1ea5t v\u00e0i gi\u00e2y, sau \u0111\u00f3 giao di\u1ec7n tr\u1edf n\u00ean ho\u1ea1t \u0111\u1ed9ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c h\u1ec7 \u0111i\u1ec1u h\u00e0nh m\u1ea1ng hi\u1ec7n \u0111\u1ea1i \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng tr\u00ean c\u00e1c n\u1ec1n t\u1ea3ng t\u1eeb c\u00e1c c\u00f4ng ty nh\u01b0 Arista Networks ho\u1eb7c Cisco t\u1ef1 \u0111\u1ed9ng ghi l\u1ea1i s\u1ef1 ki\u1ec7n ch\u00e8n m\u00f4-\u0111un v\u00e0 \u0111\u01b0a giao di\u1ec7n tr\u1ef1c tuy\u1ebfn ngay khi m\u00f4-\u0111un \u0111\u01b0\u1ee3c nh\u1eadn di\u1ec7n.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">V\u00ec sao c\u00e1c m\u00f4-\u0111un thu ph\u00e1t SFP \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 thay th\u1ebf n\u00f3ng<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Thi\u1ebft k\u1ebf c\u00f3 th\u1ec3 thay th\u1ebf n\u00f3ng c\u1ee7a c\u00e1c m\u00f4-\u0111un SFP g\u1eafn li\u1ec1n ch\u1eb7t ch\u1ebd v\u1edbi c\u00e1c y\u00eau c\u1ea7u v\u1eadn h\u00e0nh c\u1ee7a m\u1ea1ng hi\u1ec7n \u0111\u1ea1i.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>1. Gi\u1ea3m thi\u1ec3u th\u1eddi gian ng\u1eebng ho\u1ea1t \u0111\u1ed9ng c\u1ee7a m\u1ea1ng<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c m\u1ea1ng doanh nghi\u1ec7p v\u00e0 trung t\u00e2m d\u1eef li\u1ec7u ho\u1ea1t \u0111\u1ed9ng 24\/7. C\u00e1c m\u00f4-\u0111un h\u1ed7 tr\u1ee3 thay th\u1ebf n\u00f3ng cho ph\u00e9p qu\u1ea3n tr\u1ecb vi\u00ean thay th\u1ebf c\u00e1c b\u1ed9 thu ph\u00e1t b\u1ecb l\u1ed7i ho\u1eb7c thay \u0111\u1ed5i lo\u1ea1i k\u1ebft n\u1ed1i m\u00e0 kh\u00f4ng c\u1ea7n kh\u1edfi \u0111\u1ed9ng l\u1ea1i c\u00e1c b\u1ed9 chuy\u1ec3n m\u1ea1ch.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>N\u00e2ng c\u1ea5p m\u1ea1ng linh ho\u1ea1t<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c t\u1ed5 ch\u1ee9c th\u01b0\u1eddng n\u00e2ng c\u1ea5p t\u1ed1c \u0111\u1ed9 li\u00ean k\u1ebft ho\u1eb7c c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng c\u00e1p quang theo th\u1eddi gian. Vi\u1ec7c s\u1eed d\u1ee5ng c\u00e1c m\u00f4-\u0111un SFP h\u1ed7 tr\u1ee3 thay th\u1ebf n\u00f3ng cho ph\u00e9p k\u1ef9 s\u01b0 chuy\u1ec3n \u0111\u1ed5i gi\u1eefa:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>c\u00e1p quang \u0111a ch\u1ebf \u0111\u1ed9 v\u00e0 \u0111\u01a1n ch\u1ebf \u0111\u1ed9<\/p><\/li>\n\n\n\n<li><p>c\u00e1c b\u01b0\u1edbc s\u00f3ng kh\u00e1c nhau nh\u01b0 850 nm ho\u1eb7c 1310 nm<\/p><\/li>\n\n\n\n<li><p>giao di\u1ec7n \u0111\u1ed3ng v\u00e0 c\u00e1p quang<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">T\u00ednh m\u00f4-\u0111un n\u00e0y lo\u1ea1i b\u1ecf nhu c\u1ea7u thay th\u1ebf to\u00e0n b\u1ed9 thi\u1ebft b\u1ecb m\u1ea1ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>B\u1ea3o tr\u00ec \u0111\u01a1n gi\u1ea3n h\u00f3a<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">K\u1ef9 thu\u1eadt vi\u00ean t\u1ea1i hi\u1ec7n tr\u01b0\u1eddng c\u00f3 th\u1ec3 nhanh ch\u00f3ng thay th\u1ebf c\u00e1c m\u00f4-\u0111un b\u1ecb l\u1ed7i trong qu\u00e1 tr\u00ecnh ch\u1ea9n \u0111o\u00e1n s\u1ef1 c\u1ed1. N\u1ebfu m\u1ed9t <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/476092.htm\">b\u1ed9 thu ph\u00e1t quang<\/a> b\u1ecb l\u1ed7i ho\u1eb7c li\u00ean k\u1ebft tr\u1edf n\u00ean kh\u00f4ng \u1ed5n \u0111\u1ecbnh, m\u00f4-\u0111un c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c thay th\u1ebf trong v\u00e0i gi\u00e2y m\u00e0 kh\u00f4ng c\u1ea7n t\u1eaft h\u1ec7 th\u1ed1ng.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u2747\ufe0f Li\u1ec7u c\u00e1c m\u00f4-\u0111un SFP th\u1ef1c s\u1ef1 c\u00f3 h\u1ed7 tr\u1ee3 thay th\u1ebf n\u00f3ng kh\u00f4ng?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00f3 \u2014 \u1edf h\u1ea7u h\u1ebft thi\u1ebft b\u1ecb m\u1ea1ng hi\u1ec7n \u0111\u1ea1i, c\u00e1c m\u00f4-\u0111un SFP \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 h\u1ed7 tr\u1ee3 thay th\u1ebf n\u00f3ng. \u0110i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 b\u1ed9 chuy\u1ec3n m\u1ea1ch ho\u1eb7c b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn m\u1ea1ng c\u00f3 th\u1ec3 v\u1eabn \u0111\u01b0\u1ee3c c\u1ea5p \u0111i\u1ec7n trong khi b\u1ed9 thu ph\u00e1t SFP \u0111\u01b0\u1ee3c ch\u00e8n v\u00e0o ho\u1eb7c th\u00e1o ra, cho ph\u00e9p qu\u1ea3n tr\u1ecb vi\u00ean thay th\u1ebf ho\u1eb7c n\u00e2ng c\u1ea5p k\u1ebft n\u1ed1i m\u00e0 kh\u00f4ng c\u1ea7n t\u1eaft thi\u1ebft b\u1ecb.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Tuy nhi\u00ean, c\u00e2u tr\u1ea3 l\u1eddi \u0111\u00f2i h\u1ecfi m\u1ed9t ch\u00fat s\u1eafc th\u00e1i. M\u1eb7c d\u00f9 ph\u1ea7n l\u1edbn b\u1ed9 chuy\u1ec3n m\u1ea1ch doanh nghi\u1ec7p h\u1ed7 tr\u1ee3 thay th\u1ebf n\u00f3ng, h\u00e0nh vi th\u1ef1c t\u1ebf cu\u1ed1i c\u00f9ng ph\u1ee5 thu\u1ed9c v\u00e0o thi\u1ebft k\u1ebf ph\u1ea7n c\u1ee9ng c\u1ee7a thi\u1ebft b\u1ecb, c\u00e1ch tri\u1ec3n khai firmware v\u00e0 c\u1ea5u h\u00ecnh c\u1ed5ng. Vi\u1ec7c hi\u1ec3u r\u00f5 \u0111\u1eb7c t\u1ea3 nh\u00e0 cung c\u1ea5p v\u00e0 ti\u00eau chu\u1ea9n ng\u00e0nh gi\u00fap l\u00e0m r\u00f5 khi n\u00e0o thay th\u1ebf n\u00f3ng \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3 \u0111\u1ea7y \u0111\u1ee7 v\u00e0 c\u00e1ch th\u1ee9c v\u1eadn h\u00e0nh trong th\u1ef1c t\u1ebf.<\/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\/16dd51b3d2564fc3ac59543d28b460b7.jpg\" alt=\"SFP Modules Actually Hot-Swappable\" class=\"wp-image-3057\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/16dd51b3d2564fc3ac59543d28b460b7.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/16dd51b3d2564fc3ac59543d28b460b7-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/16dd51b3d2564fc3ac59543d28b460b7-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/16dd51b3d2564fc3ac59543d28b460b7-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/16dd51b3d2564fc3ac59543d28b460b7-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">\u0110\u1eb7c t\u1ea3 ch\u00ednh th\u1ee9c t\u1eeb nh\u00e0 cung c\u1ea5p (Cisco, Juniper, Arista)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c nh\u00e0 cung c\u1ea5p thi\u1ebft b\u1ecb m\u1ea1ng h\u00e0ng \u0111\u1ea7u m\u00f4 t\u1ea3 r\u00f5 r\u00e0ng c\u00e1c m\u00f4-\u0111un SFP l\u00e0 c\u00e1c thi\u1ebft b\u1ecb \u0111\u1ea7u v\u00e0o\/\u0111\u1ea7u ra c\u00f3 th\u1ec3 c\u1eafm n\u00f3ng ho\u1eb7c thay th\u1ebf n\u00f3ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00ed d\u1ee5, t\u00e0i li\u1ec7u t\u1eeb Cisco n\u00eau r\u1eb1ng c\u00e1c b\u1ed9 thu ph\u00e1t SFP l\u00e0 \u201cc\u00e1c thi\u1ebft b\u1ecb \u0111\u1ea7u v\u00e0o\/\u0111\u1ea7u ra c\u00f3 th\u1ec3 c\u1eafm n\u00f3ng, c\u1eafm v\u00e0o c\u00e1c c\u1ed5ng Gigabit Ethernet ho\u1eb7c khe c\u1eafm.\u201d Thi\u1ebft k\u1ebf n\u00e0y cho ph\u00e9p c\u00e1p quang ho\u1eb7c <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/476770.htm\">m\u00f4-\u0111un \u0111\u1ed3ng<\/a> \u0111\u01b0\u1ee3c l\u1eafp \u0111\u1eb7t m\u00e0 kh\u00f4ng c\u1ea7n t\u1eaft ngu\u1ed3n b\u1ed9 chuy\u1ec3n m\u1ea1ch, gi\u00fap t\u1ed1i \u0111a h\u00f3a th\u1eddi gian ho\u1ea1t \u0111\u1ed9ng v\u00e0 \u0111\u01a1n gi\u1ea3n h\u00f3a b\u1ea3o tr\u00ec.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">T\u01b0\u01a1ng t\u1ef1, c\u00e1c n\u1ec1n t\u1ea3ng m\u1ea1ng t\u1eeb Juniper Networks v\u00e0 Arista Networks c\u0169ng tu\u00e2n theo ki\u1ebfn tr\u00fac m\u00f4-\u0111un t\u01b0\u01a1ng t\u1ef1. C\u00e1c b\u1ed9 chuy\u1ec3n m\u1ea1ch v\u00e0 b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn c\u1ee7a h\u1ecd \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 nh\u1eadn di\u1ec7n \u0111\u1ed9ng c\u00e1c b\u1ed9 thu ph\u00e1t c\u00f3 th\u1ec3 c\u1eafm r\u1eddi, cho ph\u00e9p k\u1ef9 s\u01b0 thay th\u1ebf c\u00e1c b\u1ed9 thu ph\u00e1t quang trong qu\u00e1 tr\u00ecnh v\u1eadn h\u00e0nh b\u00ecnh th\u01b0\u1eddng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Kh\u1ea3 n\u0103ng n\u00e0y \u00e1p d\u1ee5ng cho nhi\u1ec1u lo\u1ea1i <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/488474.htm\"><strong>module quang<br><\/strong><\/a>, bao g\u1ed3m:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><a href=\"https:\/\/www.l-p.com\/products\/488475.htm\" target=\"_self\">Module b\u1ed9 thu ph\u00e1t SFP<\/a> (1G)<\/p><\/li>\n\n\n\n<li><p>m\u00f4-\u0111un quang SFP+ (10G)<\/p><\/li>\n\n\n\n<li><p><a href=\"https:\/\/www.l-p.com\/store-26225-25g-sfp28.htm\" target=\"_self\">SFP28<\/a> m\u00f4-\u0111un quang (25G)<\/p><\/li>\n\n\n\n<li><p>m\u00f4-\u0111un SFP \u0111\u1ed3ng RJ45<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00ec c\u00e1c m\u00f4-\u0111un n\u00e0y chia s\u1ebb c\u00f9ng m\u1ed9t giao di\u1ec7n c\u1eafm r\u1eddi chu\u1ea9n h\u00f3a, ng\u01b0\u1eddi v\u1eadn h\u00e0nh m\u1ea1ng c\u00f3 th\u1ec3 k\u1ebft h\u1ee3p c\u00e1c lo\u1ea1i quang kh\u00e1c nhau tr\u00ean c\u01a1 s\u1edf t\u1eebng c\u1ed5ng.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Ti\u00eau chu\u1ea9n ng\u00e0nh v\u1ec1 vi\u1ec7c thay th\u1ebf n\u00f3ng SFP<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">H\u00e0nh vi h\u1ed7 tr\u1ee3 thay th\u1ebf n\u00f3ng c\u1ee7a c\u00e1c m\u00f4-\u0111un quang SFP \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3 b\u1edfi thi\u1ebft k\u1ebf ng\u00e0nh r\u1ed9ng h\u01a1n \u0111\u01b0\u1ee3c \u0111\u1ecbnh ngh\u0129a trong <strong>SFP <\/strong><a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/multi-source-agreements-optical-transceivers\/\"><strong>Th\u1ecfa thu\u1eadn \u0110a ngu\u1ed3n<\/strong><\/a><strong> (MSA)<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ti\u00eau chu\u1ea9n 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 c\u1ee7a b\u1ed9 thu ph\u00e1t<\/p><\/li>\n\n\n\n<li><p>ph\u00e2n b\u1ed5 ch\u00e2n \u0111i\u1ec7n<\/p><\/li>\n\n\n\n<li><p>b\u1ed9 nh\u1edb nh\u1eadn d\u1ea1ng s\u1ed1 (EEPROM)<\/p><\/li>\n\n\n\n<li><p>h\u00e0nh vi ch\u00e8n v\u00e0 th\u00e1o r\u1eddi<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c chu\u1ea9n h\u00f3a n\u00e0y \u0111\u1ea3m b\u1ea3o r\u1eb1ng c\u00e1c b\u1ed9 chuy\u1ec3n m\u1ea1ch v\u00e0 m\u00f4-\u0111un tu\u00e2n th\u1ee7 c\u00f3 th\u1ec3 h\u1ed7 tr\u1ee3 an to\u00e0n vi\u1ec7c ch\u00e8n v\u00e0 th\u00e1o r\u1eddi n\u00f3ng c\u00e1c m\u00f4-\u0111un SFP. N\u00f3i c\u00e1ch kh\u00e1c, ph\u1ea7n c\u1ee9ng b\u1ed9 chuy\u1ec3n m\u1ea1ch \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 ph\u00e1t hi\u1ec7n s\u1ef1 hi\u1ec7n di\u1ec7n c\u1ee7a b\u1ed9 thu ph\u00e1t v\u00e0 kh\u1edfi t\u1ea1o giao di\u1ec7n m\u1ed9t c\u00e1ch \u0111\u1ed9ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Nh\u1edd ki\u1ebfn tr\u00fac chu\u1ea9n h\u00f3a n\u00e0y, c\u1ea3 <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/477871.htm\">SFP OEM<\/a> v\u00e0 c\u00e1c b\u1ed9 thu ph\u00e1t quang b\u00ean th\u1ee9 ba t\u01b0\u01a1ng th\u00edch th\u01b0\u1eddng h\u1ed7 tr\u1ee3 thay th\u1ebf n\u00f3ng khi \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong thi\u1ebft b\u1ecb m\u1ea1ng tu\u00e2n th\u1ee7.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">C\u00e1ch b\u1ed9 chuy\u1ec3n m\u1ea1ch t\u1ef1 \u0111\u1ed9ng ph\u00e1t hi\u1ec7n vi\u1ec7c ch\u00e8n m\u00f4-\u0111un SFP<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Khi m\u1ed9t m\u00f4-\u0111un b\u1ed9 thu ph\u00e1t quang \u0111\u01b0\u1ee3c ch\u00e8n v\u00e0o m\u1ed9t <a target=\"_self\" href=\"https:\/\/www.l-p.com\/store-21644-fiber-optic-cages-connectors.htm\">ng\u0103n ch\u1ee9a SFP<\/a>, b\u1ed9 chuy\u1ec3n m\u1ea1ch th\u1ef1c hi\u1ec7n m\u1ed9t lo\u1ea1t ki\u1ec3m tra ph\u1ea7n c\u1ee9ng v\u00e0 ph\u1ea7n m\u1ec1m t\u1ef1 \u0111\u1ed9ng.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">\u25b6 Ph\u00e1t hi\u1ec7n m\u00f4-\u0111un v\u1eadt l\u00fd<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">B\u1ed9 chuy\u1ec3n m\u1ea1ch tr\u01b0\u1edbc ti\u00ean ph\u00e1t hi\u1ec7n s\u1ef1 hi\u1ec7n di\u1ec7n c\u1ee7a m\u00f4-\u0111un th\u00f4ng qua c\u00e1c ch\u00e2n \u0111i\u1ec7n chuy\u00ean d\u1ee5ng trong giao di\u1ec7n SFP. C\u00e1c ch\u00e2n n\u00e0y cho bi\u1ebft m\u1ed9t b\u1ed9 thu ph\u00e1t \u0111\u00e3 \u0111\u01b0\u1ee3c ch\u00e8n v\u00e0o.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">\u25b6 \u0110\u1ecdc th\u00f4ng tin nh\u1eadn d\u1ea1ng m\u00f4-\u0111un (EEPROM)<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed7i m\u00f4-\u0111un quang SFP ch\u1ee9a b\u1ed9 nh\u1edb t\u00edch h\u1ee3p l\u01b0u tr\u1eef d\u1eef li\u1ec7u nh\u1eadn d\u1ea1ng nh\u01b0:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>t\u00ean nh\u00e0 cung c\u1ea5p<\/p><\/li>\n\n\n\n<li><p>t\u1ed1c \u0111\u1ed9 d\u1eef li\u1ec7u h\u1ed7 tr\u1ee3<\/p><\/li>\n\n\n\n<li><p>b\u01b0\u1edbc s\u00f3ng (v\u00ed d\u1ee5: 850 nm ho\u1eb7c 1310 nm)<\/p><\/li>\n\n\n\n<li><p>kho\u1ea3ng c\u00e1ch truy\u1ec1n d\u1eabn<\/p><\/li>\n\n\n\n<li><p>th\u00f4ng tin t\u01b0\u01a1ng th\u00edch<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">B\u1ed9 chuy\u1ec3n m\u1ea1ch \u0111\u1ecdc d\u1eef li\u1ec7u EEPROM n\u00e0y \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh c\u00e1ch giao di\u1ec7n n\u00ean v\u1eadn h\u00e0nh.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">\u25b6 Kh\u1edfi t\u1ea1o giao di\u1ec7n<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Sau khi m\u00f4-\u0111un \u0111\u01b0\u1ee3c x\u00e1c th\u1ef1c, b\u1ed9 chuy\u1ec3n m\u1ea1ch kh\u1edfi t\u1ea1o c\u1ed5ng b\u1eb1ng c\u00e1ch c\u1ea5u h\u00ecnh:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>t\u1ed1c \u0111\u1ed9 li\u00ean k\u1ebft (1G \/ 10G \/ 25G t\u00f9y theo lo\u1ea1i m\u00f4-\u0111un)<\/p><\/li>\n\n\n\n<li><p>ho\u1ea1t \u0111\u1ed9ng laser<\/p><\/li>\n\n\n\n<li><p>th\u00f4ng s\u1ed1 t\u00edn hi\u1ec7u<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">N\u1ebfu c\u00e1p quang \u0111\u00e3 \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i, b\u1ed9 chuy\u1ec3n m\u1ea1ch sau \u0111\u00f3 b\u1eaft \u0111\u1ea7u th\u01b0\u01a1ng l\u01b0\u1ee3ng li\u00ean k\u1ebft v\u1edbi thi\u1ebft b\u1ecb \u1edf xa.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">\u25b6 Ghi nh\u1eadt k\u00fd tr\u1ea1ng th\u00e1i giao di\u1ec7n<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c h\u1ec7 \u0111i\u1ec1u h\u00e0nh m\u1ea1ng hi\u1ec7n \u0111\u1ea1i ghi l\u1ea1i s\u1ef1 ki\u1ec7n n\u00e0y trong nh\u1eadt k\u00fd h\u1ec7 th\u1ed1ng. K\u1ef9 s\u01b0 th\u01b0\u1eddng c\u00f3 th\u1ec3 th\u1ea5y c\u00e1c th\u00f4ng b\u00e1o nh\u01b0:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>\u201c\u0110\u00e3 ch\u00e8n SFP\u201d<\/p><\/li>\n\n\n\n<li><p>\u201c\u0110\u00e3 ph\u00e1t hi\u1ec7n b\u1ed9 thu ph\u00e1t\u201d<\/p><\/li>\n\n\n\n<li><p>\u201cLi\u00ean k\u1ebft giao di\u1ec7n \u0111\u00e3 b\u1eadt\u201d<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Qu\u00e1 tr\u00ecnh t\u1ef1 \u0111\u1ed9ng n\u00e0y l\u00e0 l\u00fd do v\u00ec sao c\u00e1c m\u00f4-\u0111un quang th\u01b0\u1eddng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c thay th\u1ebf trong v\u00e0i gi\u00e2y m\u00e0 kh\u00f4ng c\u1ea7n kh\u1edfi \u0111\u1ed9ng l\u1ea1i b\u1ed9 chuy\u1ec3n m\u1ea1ch.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">C\u00e1c c\u00e2n nh\u1eafc th\u1ef1c t\u1ebf \u0111\u1ed1i v\u1edbi t\u00ednh n\u0103ng thay th\u1ebf n\u00f3ng SFP<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1eb7c d\u00f9 thay th\u1ebf n\u00f3ng SFP \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3 v\u1ec1 m\u1eb7t thi\u1ebft k\u1ebf, nh\u01b0ng trong th\u1ef1c t\u1ebf \u0111\u00f4i khi xu\u1ea5t hi\u1ec7n h\u00e0nh vi b\u1ea5t ng\u1edd.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00ed d\u1ee5, c\u00e1c cu\u1ed9c th\u1ea3o lu\u1eadn gi\u1eefa c\u00e1c k\u1ef9 s\u01b0 m\u1ea1ng tr\u00ean Reddit cho th\u1ea5y vi\u1ec7c ch\u00e8n ho\u1eb7c th\u00e1o m\u1ed9t m\u00f4-\u0111un SFP \u0111\u00f4i khi c\u00f3 th\u1ec3 g\u00e2y ra hi\u1ec7n t\u01b0\u1ee3ng t\u00e1i h\u1ed9i t\u1ee5 li\u00ean k\u1ebft t\u1ea1m th\u1eddi ho\u1eb7c chuy\u1ec3n tr\u1ea1ng th\u00e1i c\u1ed5ng t\u00f9y thu\u1ed9c v\u00e0o firmware b\u1ed9 chuy\u1ec3n m\u1ea1ch ho\u1eb7c b\u1ed1 tr\u00ed m\u1ea1ng. M\u1ed9t k\u1ef9 s\u01b0 b\u00e1o c\u00e1o r\u1eb1ng vi\u1ec7c ch\u00e8n m\u1ed9t m\u00f4-\u0111un SFP v\u00e0o b\u1ed9 chuy\u1ec3n m\u1ea1ch x\u1ebfp ch\u1ed3ng \u0111\u00e3 g\u00e2y ra c\u00e1c chuy\u1ec3n \u0111\u1ed5i STP v\u00e0 c\u00e1c s\u1ef1 ki\u1ec7n t\u00e1i h\u1ed9i t\u1ee5 m\u1ea1ng ng\u1eafn, c\u00f3 kh\u1ea3 n\u0103ng do h\u00e0nh vi ph\u1ea7n m\u1ec1m ch\u1ee9 kh\u00f4ng ph\u1ea3i do gi\u1edbi h\u1ea1n ph\u1ea7n c\u1ee9ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Nh\u1eefng tr\u01b0\u1eddng h\u1ee3p n\u00e0y t\u01b0\u01a1ng \u0111\u1ed1i hi\u1ebfm nh\u01b0ng minh h\u1ecda l\u00fd do v\u00ec sao qu\u1ea3n tr\u1ecb vi\u00ean m\u1ea1ng th\u01b0\u1eddng tu\u00e2n theo c\u00e1c th\u1ef1c ti\u1ec5n v\u1eadn h\u00e0nh t\u1ed1t nh\u1ea5t khi thay th\u1ebf c\u00e1c m\u00f4-\u0111un b\u1ed9 thu ph\u00e1t quang trong m\u00f4i tr\u01b0\u1eddng s\u1ea3n xu\u1ea5t.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">T\u00f3m l\u1ea1i, c\u00e1c m\u00f4-\u0111un SFP th\u1ef1c s\u1ef1 h\u1ed7 tr\u1ee3 thay th\u1ebf n\u00f3ng theo thi\u1ebft k\u1ebf, v\u00e0 h\u1ea7u h\u1ebft thi\u1ebft b\u1ecb m\u1ea1ng doanh nghi\u1ec7p \u0111\u1ec1u cho ph\u00e9p thay th\u1ebf c\u00e1c b\u1ed9 thu ph\u00e1t quang trong khi h\u1ec7 th\u1ed1ng v\u1eabn \u0111\u01b0\u1ee3c c\u1ea5p \u0111i\u1ec7n. Tuy nhi\u00ean, vi\u1ec7c x\u1eed l\u00fd \u0111\u00fang c\u00e1ch, ki\u1ec3m tra t\u00ednh t\u01b0\u01a1ng th\u00edch v\u00e0 nh\u1eadn th\u1ee9c v\u1ec1 h\u00e0nh vi c\u1ee7a m\u1ea1ng v\u1eabn r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o qu\u00e1 tr\u00ecnh thay th\u1ebf di\u1ec5n ra su\u00f4n s\u1ebb.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u2747\ufe0f B\u1ea1n c\u00f3 th\u1ec3 thay th\u1ebf n\u00f3ng c\u00e1c m\u00f4-\u0111un SFP m\u00e0 kh\u00f4ng c\u1ea7n t\u1eaft ngu\u1ed3n c\u00f4ng t\u1eafc kh\u00f4ng?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00f3. Trong h\u1ea7u h\u1ebft c\u00e1c m\u00f4i tr\u01b0\u1eddng m\u1ea1ng doanh nghi\u1ec7p, <strong>c\u00e1c m\u00f4-\u0111un SFP c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c ch\u00e8n v\u00e0o ho\u1eb7c th\u00e1o ra trong khi c\u00f4ng t\u1eafc v\u1eabn \u0111ang \u0111\u01b0\u1ee3c c\u1ea5p \u0111i\u1ec7n<\/strong>. Kh\u1ea3 n\u0103ng n\u00e0y l\u00e0 m\u1ed9t ph\u1ea7n c\u1ee7a ki\u1ebfn tr\u00fac h\u1ed7 tr\u1ee3 thay th\u1ebf n\u00f3ng \u0111\u01b0\u1ee3c t\u00edch h\u1ee3p trong c\u00e1c c\u00f4ng t\u1eafc v\u00e0 b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn hi\u1ec7n \u0111\u1ea1i.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">T\u00e0i li\u1ec7u k\u1ef9 thu\u1eadt ph\u1ea7n c\u1ee9ng t\u1eeb nhi\u1ec1u nh\u00e0 cung c\u1ea5p x\u00e1c nh\u1eadn r\u1eb1ng <a target=\"_self\" href=\"https:\/\/www.l-p.com\/store-25832-1-2-4g-transceiver-modules.htm\">b\u1ed9 ph\u00e1t thu quang SFP<\/a> c\u00e1c m\u00f4-\u0111un n\u00e0y l\u00e0 c\u00e1c th\u00e0nh ph\u1ea7n c\u00f3 th\u1ec3 ch\u00e8n n\u00f3ng v\u00e0 th\u00e1o n\u00f3ng, ngh\u0129a l\u00e0 thi\u1ebft b\u1ecb ti\u1ebfp t\u1ee5c ho\u1ea1t \u0111\u1ed9ng ngay c\u1ea3 khi m\u1ed9t m\u00f4-\u0111un \u0111\u01b0\u1ee3c thay th\u1ebf. Tuy nhi\u00ean, giao di\u1ec7n m\u1ea1ng li\u00ean k\u1ebft v\u1edbi m\u00f4-\u0111un \u0111\u00f3 s\u1ebd t\u1ea1m th\u1eddi m\u1ea5t k\u1ebft n\u1ed1i trong su\u1ed1t qu\u00e1 tr\u00ecnh n\u00e0y.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Tr\u00ean th\u1ef1c t\u1ebf, c\u00e1c k\u1ef9 s\u01b0 th\u01b0\u1eddng thay th\u1ebf c\u00e1c m\u00f4-\u0111un SFP m\u00e0 kh\u00f4ng c\u1ea7n t\u1eaft to\u00e0n b\u1ed9 c\u00f4ng t\u1eafc. Vi\u1ec7c hi\u1ec3u r\u00f5 nh\u1eefng g\u00ec x\u1ea3y ra trong qu\u00e1 tr\u00ecnh n\u00e0y gi\u00fap tr\u00e1nh nh\u1ea7m l\u1eabn v\u00e0 c\u00e1c s\u1ef1 ki\u1ec7n m\u1ea1ng b\u1ea5t ng\u1edd.<\/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\/f7558ebb500048d292a42da0a8e6de5d.jpg\" alt=\"Can You Hot Swap SFP Modules Without Turning Off a Switch?-YES\" class=\"wp-image-3058\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/f7558ebb500048d292a42da0a8e6de5d.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/f7558ebb500048d292a42da0a8e6de5d-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/f7558ebb500048d292a42da0a8e6de5d-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/f7558ebb500048d292a42da0a8e6de5d-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/f7558ebb500048d292a42da0a8e6de5d-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Thay th\u1ebf c\u00e1c m\u00f4-\u0111un SFP trong khi c\u00f4ng t\u1eafc \u0111ang ho\u1ea1t \u0111\u1ed9ng<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Khi m\u1ed9t c\u00f4ng t\u1eafc h\u1ed7 tr\u1ee3 thay th\u1ebf n\u00f3ng, vi\u1ec7c thay th\u1ebf m\u1ed9t m\u00f4-\u0111un quang th\u01b0\u1eddng tu\u00e2n theo m\u1ed9t tr\u00ecnh t\u1ef1 \u0111\u01a1n gi\u1ea3n:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><p>Ng\u1eaft k\u1ebft n\u1ed1i c\u00e1p <a href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/fiber-optic-cable-what-it-is-and-how-it-works-explained\/\" target=\"_blank\" rel=\"\">c\u00e1p n\u1ed1i s\u1ee3i quang<\/a> or <a href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/what-is-twisted-pair-copper-cable-and-how-does-it-work\/\" target=\"_blank\" rel=\"\">c\u00e1p \u0111\u1ed3ng tr\u1ee5c<\/a>.<\/p><\/li>\n\n\n\n<li><p>M\u1edf kh\u00f3a ch\u1ed1t tr\u00ean m\u00f4-\u0111un SFP (v\u00ed d\u1ee5 nh\u01b0 ch\u1ed1t g\u1eadp ho\u1eb7c tab k\u00e9o).<\/p><\/li>\n\n\n\n<li><p>Th\u00e1o m\u00f4-\u0111un ra kh\u1ecfi bu\u1ed3ng SFP.<\/p><\/li>\n\n\n\n<li><p>Ch\u00e8n m\u00f4-\u0111un quang thay th\u1ebf v\u00e0o.<\/p><\/li>\n\n\n\n<li><p>K\u1ebft n\u1ed1i l\u1ea1i c\u00e1p s\u1ee3i quang ho\u1eb7c c\u00e1p Ethernet.<\/p><\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00ec c\u00f4ng t\u1eafc v\u1eabn \u0111\u01b0\u1ee3c c\u1ea5p \u0111i\u1ec7n, ch\u1ec9 giao di\u1ec7n c\u1ee5 th\u1ec3 li\u00ean k\u1ebft v\u1edbi c\u1ed5ng SFP \u0111\u00f3 b\u1ecb \u1ea3nh h\u01b0\u1edfng. Ph\u1ea7n c\u00f2n l\u1ea1i c\u1ee7a c\u00f4ng t\u1eafc ti\u1ebfp t\u1ee5c chuy\u1ec3n ti\u1ebfp l\u01b0u l\u01b0\u1ee3ng b\u00ecnh th\u01b0\u1eddng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Tuy nhi\u00ean, nhi\u1ec1u h\u01b0\u1edbng d\u1eabn c\u00e0i \u0111\u1eb7t c\u1ee7a nh\u00e0 cung c\u1ea5p khuy\u1ebfn ngh\u1ecb v\u00f4 hi\u1ec7u h\u00f3a qu\u1ea3n tr\u1ecb giao di\u1ec7n tr\u01b0\u1edbc khi th\u00e1o r\u1eddi n\u1ebfu c\u00f3 th\u1ec3. \u0110i\u1ec1u n\u00e0y l\u00e0m gi\u1ea3m kh\u1ea3 n\u0103ng x\u1ea3y ra c\u00e1c s\u1ef1 ki\u1ec7n ph\u1ea7n m\u1ec1m nh\u01b0 l\u1ed7i giao di\u1ec7n ho\u1eb7c thay \u0111\u1ed5i b\u1ea3ng MAC trong qu\u00e1 tr\u00ecnh thay th\u1ebf.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Trong c\u00e1c m\u1ea1ng c\u00f3 t\u00ednh s\u1eb5n s\u00e0ng cao, c\u00e1c k\u1ef9 s\u01b0 c\u0169ng c\u00f3 th\u1ec3 l\u00ean l\u1ecbch c\u1eeda s\u1ed5 b\u1ea3o tr\u00ec ho\u1eb7c d\u1ef1a v\u00e0o c\u00e1c li\u00ean k\u1ebft d\u1ef1 ph\u00f2ng (v\u00ed d\u1ee5 nh\u01b0 LACP ho\u1eb7c d\u1ef1 ph\u00f2ng Spanning Tree) \u0111\u1ec3 tr\u00e1nh gi\u00e1n \u0111o\u1ea1n d\u1ecbch v\u1ee5.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u0110i\u1ec1u g\u00ec x\u1ea3y ra khi th\u00e1o m\u1ed9t m\u00f4-\u0111un SFP?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Khi m\u1ed9t b\u1ed9 thu ph\u00e1t quang \u0111\u01b0\u1ee3c th\u00e1o ra kh\u1ecfi c\u00f4ng t\u1eafc \u0111ang \u0111\u01b0\u1ee3c c\u1ea5p \u0111i\u1ec7n, m\u1ed9t s\u1ed1 s\u1ef1 ki\u1ec7n c\u00f3 th\u1ec3 d\u1ef1 \u0111o\u00e1n \u0111\u01b0\u1ee3c s\u1ebd x\u1ea3y ra.<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><p><strong>Li\u00ean k\u1ebft ngay l\u1eadp t\u1ee9c b\u1ecb ng\u1eaft<\/strong><\/p><p>K\u1ebft n\u1ed1i v\u1eadt l\u00fd b\u1ecb ph\u00e1 v\u1ee1, do \u0111\u00f3 giao di\u1ec7n chuy\u1ec3n sang tr\u1ea1ng th\u00e1i <em>li\u00ean k\u1ebft b\u1ecb ng\u1eaft<\/em> .<\/p><\/li>\n\n\n\n<li><p><strong>L\u01b0u l\u01b0\u1ee3ng tr\u00ean c\u1ed5ng \u0111\u00f3 d\u1eebng l\u1ea1i<\/strong><\/p><p>B\u1ea5t k\u1ef3 l\u01b0u l\u01b0\u1ee3ng m\u1ea1ng n\u00e0o s\u1eed d\u1ee5ng giao di\u1ec7n \u0111\u00f3 \u0111\u1ec1u b\u1ecb gi\u00e1n \u0111o\u1ea1n cho \u0111\u1ebfn khi l\u1eafp \u0111\u1eb7t m\u00f4-\u0111un ho\u1eb7c c\u00e1p m\u1edbi.<\/p><\/li>\n\n\n\n<li><p><strong>C\u00f4ng t\u1eafc ghi l\u1ea1i m\u1ed9t s\u1ef1 ki\u1ec7n<\/strong><\/p><p>H\u1ec7 \u0111i\u1ec1u h\u00e0nh m\u1ea1ng th\u01b0\u1eddng ghi l\u1ea1i c\u00e1c th\u00f4ng b\u00e1o nh\u01b0:<\/p>\n<ul class=\"wp-block-list\">\n<li><p>\u201cb\u1ed9 thu ph\u00e1t \u0111\u00e3 \u0111\u01b0\u1ee3c th\u00e1o ra\u201d<\/p><\/li>\n\n\n\n<li><p>\u201cli\u00ean k\u1ebft giao di\u1ec7n b\u1ecb ng\u1eaft\u201d<\/p><\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><p><strong>Ph\u1ea7n c\u00f2n l\u1ea1i c\u1ee7a c\u00f4ng t\u1eafc ti\u1ebfp t\u1ee5c ho\u1ea1t \u0111\u1ed9ng<\/strong><\/p><p>Vi\u1ec7c th\u00e1o m\u1ed9t m\u00f4-\u0111un SFP th\u01b0\u1eddng kh\u00f4ng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn c\u00e1c giao di\u1ec7n kh\u00e1c ho\u1eb7c to\u00e0n b\u1ed9 qu\u00e1 tr\u00ecnh chuy\u1ec3n m\u1ea1ch.<\/p><\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">Trong c\u00e1c m\u1ea1ng c\u00f3 k\u00edch ho\u1ea1t giao th\u1ee9c \u0111\u1ecbnh tuy\u1ebfn ho\u1eb7c Spanning Tree, vi\u1ec7c m\u1ea5t li\u00ean k\u1ebft c\u0169ng c\u00f3 th\u1ec3 k\u00edch ho\u1ea1t c\u00e1c s\u1ef1 ki\u1ec7n chuy\u1ec3n \u0111\u1ed5i d\u1ef1 ph\u00f2ng ho\u1eb7c t\u00e1i h\u1ed9i t\u1ee5 khi m\u1ea1ng t\u00ednh to\u00e1n l\u1ea1i \u0111\u01b0\u1eddng \u0111i t\u1ed1i \u01b0u.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">C\u00e1ch c\u00f4ng t\u1eafc kh\u1edfi t\u1ea1o l\u1ea1i c\u00e1c giao di\u1ec7n quang<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Sau khi ch\u00e8n m\u1ed9t m\u00f4-\u0111un quang m\u1edbi, c\u00f4ng t\u1eafc t\u1ef1 \u0111\u1ed9ng b\u1eaft \u0111\u1ea7u qu\u00e1 tr\u00ecnh kh\u1edfi t\u1ea1o.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">\u2666 Ph\u00e1t hi\u1ec7n m\u00f4-\u0111un<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Ph\u1ea7n c\u1ee9ng c\u00f4ng t\u1eafc ph\u00e1t hi\u1ec7n vi\u1ec7c ch\u00e8n m\u1ed9t b\u1ed9 thu ph\u00e1t v\u00e0o bu\u1ed3ng SFP th\u00f4ng qua c\u00e1c ch\u00e2n ph\u00e1t hi\u1ec7n chuy\u00ean d\u1ee5ng.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">\u2666 Nh\u1eadn d\u1ea1ng EEPROM<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed7i m\u00f4-\u0111un quang SFP \u0111\u1ec1u ch\u1ee9a <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/eeprom-electrically-erasable-programmable-read-only-memory\/\">B\u1ed9 nh\u1edb EEPROM<\/a> b\u1ed9 nh\u1edb EEPROM v\u1edbi d\u1eef li\u1ec7u nh\u1eadn d\u1ea1ng nh\u01b0:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>th\u00f4ng tin nh\u00e0 cung c\u1ea5p<\/p><\/li>\n\n\n\n<li><p>t\u1ed1c \u0111\u1ed9 d\u1eef li\u1ec7u h\u1ed7 tr\u1ee3 (1G, 10G, v.v.)<\/p><\/li>\n\n\n\n<li><p>b\u01b0\u1edbc s\u00f3ng (850 nm, 1310 nm, v.v.)<\/p><\/li>\n\n\n\n<li><p>kho\u1ea3ng c\u00e1ch truy\u1ec1n d\u1eabn h\u1ed7 tr\u1ee3<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00f4ng t\u1eafc \u0111\u1ecdc th\u00f4ng tin n\u00e0y \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh m\u00f4-\u0111un c\u00f3 t\u01b0\u01a1ng th\u00edch hay kh\u00f4ng.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">\u2666 C\u1ea5u h\u00ecnh giao di\u1ec7n<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">N\u1ebfu m\u00f4-\u0111un v\u01b0\u1ee3t qua c\u00e1c ki\u1ec3m tra x\u00e1c th\u1ef1c, c\u00f4ng t\u1eafc kh\u1edfi t\u1ea1o giao di\u1ec7n v\u00e0 c\u1ea5u h\u00ecnh c\u00e1c tham s\u1ed1 nh\u01b0:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>t\u1ed1c \u0111\u1ed9 c\u1ed5ng<\/p><\/li>\n\n\n\n<li><p>k\u00edch ho\u1ea1t laser<\/p><\/li>\n\n\n\n<li><p>th\u01b0\u01a1ng l\u01b0\u1ee3ng li\u00ean k\u1ebft<\/p><\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">\u2666 Thi\u1ebft l\u1eadp li\u00ean k\u1ebft<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Khi ph\u00e1t hi\u1ec7n k\u1ebft n\u1ed1i s\u1ee3i quang ho\u1eb7c \u0111\u1ed3ng tr\u1ee5c t\u1eeb thi\u1ebft b\u1ecb xa, giao di\u1ec7n chuy\u1ec3n t\u1eeb tr\u1ea1ng th\u00e1i <em>li\u00ean k\u1ebft b\u1ecb ng\u1eaft<\/em> to <em>li\u00ean k\u1ebft \u0111\u00e3 l\u00ean<\/em>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Trong h\u1ea7u h\u1ebft c\u00e1c tr\u01b0\u1eddng h\u1ee3p, qu\u00e1 tr\u00ecnh n\u00e0y ho\u00e0n t\u1ea5t trong v\u00e0i gi\u00e2y.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">M\u1eb9o d\u00e0nh cho k\u1ef9 s\u01b0 m\u1ea1ng v\u1ec1 t\u00ednh h\u1ed7 tr\u1ee3 thay th\u1ebf n\u00f3ng c\u1ee7a SFP<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1eb7c d\u00f9 c\u00e1c m\u00f4-\u0111un quang \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 h\u1ed7 tr\u1ee3 thay th\u1ebf n\u00f3ng, nh\u01b0ng kinh nghi\u1ec7m th\u1ef1c t\u1ebf do c\u00e1c k\u1ef9 s\u01b0 chia s\u1ebb cho th\u1ea5y h\u00e0nh vi c\u00f3 th\u1ec3 kh\u00e1c nhau t\u00f9y thu\u1ed9c v\u00e0o m\u1eabu ph\u1ea7n c\u1ee9ng, phi\u00ean b\u1ea3n firmware ho\u1eb7c b\u1ed1 tr\u00ed m\u1ea1ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00ed d\u1ee5, m\u1ed9t cu\u1ed9c th\u1ea3o lu\u1eadn tr\u00ean Reddit ghi nh\u1eadn r\u1eb1ng vi\u1ec7c ch\u00e8n ho\u1eb7c th\u00e1o m\u00f4-\u0111un SFP tr\u00ean m\u1ed9t s\u1ed1 c\u00f4ng t\u1eafc \u0111\u00e3 k\u00edch ho\u1ea1t c\u00e1c s\u1ef1 ki\u1ec7n chuy\u1ec3n \u0111\u1ed5i STP t\u1ea1m th\u1eddi v\u00e0 t\u00e1i h\u1ed9i t\u1ee5 trong m\u1ea1ng, ngay c\u1ea3 khi kh\u00f4ng c\u00f3 c\u00e1p s\u1ee3i quang n\u00e0o \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t k\u1ef9 s\u01b0 kh\u00e1c b\u00e1o c\u00e1o t\u00ecnh hu\u1ed1ng c\u00f4ng t\u1eafc kh\u1edfi \u0111\u1ed9ng l\u1ea1i sau khi th\u00e1o m\u1ed9t b\u1ed9 thu ph\u00e1t, v\u00e0 sau \u0111\u00f3 \u0111\u01b0\u1ee3c nghi ng\u1edd l\u00e0 do c\u00e1c k\u00edch ho\u1ea1t c\u1ea5u h\u00ecnh ho\u1eb7c h\u00e0nh vi firmware ch\u1ee9 kh\u00f4ng ph\u1ea3i do ph\u1ea7n c\u1ee9ng SFP g\u00e2y ra.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Nh\u1eefng tr\u01b0\u1eddng h\u1ee3p n\u00e0y t\u01b0\u01a1ng \u0111\u1ed1i hi\u1ebfm nh\u01b0ng minh h\u1ecda m\u1ed9t nguy\u00ean t\u1eafc v\u1eadn h\u00e0nh quan tr\u1ecdng:<br><strong>h\u1ed7 tr\u1ee3 thay th\u1ebf n\u00f3ng kh\u00f4ng lu\u00f4n \u0111\u1ed3ng ngh\u0129a v\u1edbi vi\u1ec7c kh\u00f4ng g\u00e2y \u1ea3nh h\u01b0\u1edfng n\u00e0o \u0111\u1ebfn m\u1ea1ng<\/strong>, \u0111\u1eb7c bi\u1ec7t khi li\u00ean quan \u0111\u1ebfn c\u00e1c li\u00ean k\u1ebft l\u00ean quan tr\u1ecdng ho\u1eb7c c\u00e1c c\u00f4ng t\u1eafc \u0111\u01b0\u1ee3c x\u1ebfp ch\u1ed3ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">T\u00f3m l\u1ea1i, h\u1ea7u h\u1ebft c\u00e1c switch cho ph\u00e9p b\u1ea1n thay th\u1ebf module SFP khi \u0111ang ho\u1ea1t \u0111\u1ed9ng m\u00e0 kh\u00f4ng c\u1ea7n t\u1eaft thi\u1ebft b\u1ecb, v\u00e0 \u0111\u00e2y l\u00e0 m\u1ed9t t\u00ednh n\u0103ng ti\u00eau chu\u1ea9n c\u1ee7a ph\u1ea7n c\u1ee9ng m\u1ea1ng hi\u1ec7n \u0111\u1ea1i. Tuy nhi\u00ean, vi\u1ec7c hi\u1ec3u r\u00f5 c\u00e1ch c\u00e1c giao di\u1ec7n ph\u1ea3n \u1ee9ng trong qu\u00e1 tr\u00ecnh th\u00e1o ho\u1eb7c l\u1eafp \u0111\u1eb7t gi\u00fap k\u1ef9 s\u01b0 m\u1ea1ng th\u1ef1c hi\u1ec7n b\u1ea3o tr\u00ec an to\u00e0n h\u01a1n v\u00e0 tr\u00e1nh gi\u00e1n \u0111o\u1ea1n k\u1ebft n\u1ed1i b\u1ea5t ng\u1edd.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u2747\ufe0f C\u00e1c r\u1ee7i ro khi thay th\u1ebf module SFP khi \u0111ang ho\u1ea1t \u0111\u1ed9ng (Kinh nghi\u1ec7m th\u1ef1c t\u1ebf t\u1eeb c\u00e1c k\u1ef9 s\u01b0)<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1eb7c d\u00f9 transceiver SFP+ \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 h\u1ed7 tr\u1ee3 thay th\u1ebf khi \u0111ang ho\u1ea1t \u0111\u1ed9ng, nh\u01b0ng trong tri\u1ec3n khai th\u1ef1c t\u1ebf, vi\u1ec7c thay th\u1ebf module tr\u00ean switch \u0111ang ch\u1ea1y kh\u00f4ng ph\u1ea3i l\u00fac n\u00e0o c\u0169ng kh\u00f4ng c\u00f3 r\u1ee7i ro. C\u00e1c cu\u1ed9c th\u1ea3o lu\u1eadn gi\u1eefa c\u00e1c k\u1ef9 s\u01b0 m\u1ea1ng tr\u00ean c\u00e1c di\u1ec5n \u0111\u00e0n v\u00e0 c\u1ed9ng \u0111\u1ed3ng nh\u01b0 Reddit ti\u1ebft l\u1ed9 m\u1ed9t s\u1ed1 v\u1ea5n \u0111\u1ec1 th\u1ef1c ti\u1ec5n c\u00f3 th\u1ec3 x\u1ea3y ra trong ho\u1eb7c sau khi thay th\u1ebf module khi \u0111ang ho\u1ea1t \u0111\u1ed9ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Nh\u1eefng v\u1ea5n \u0111\u1ec1 n\u00e0y t\u01b0\u01a1ng \u0111\u1ed1i hi\u1ebfm, nh\u01b0ng ch\u00fang l\u00e0m n\u1ed5i b\u1eadt l\u00fd do v\u00ec sao nhi\u1ec1u k\u1ef9 s\u01b0 v\u1eabn tu\u00e2n th\u1ee7 c\u00e1c quy tr\u00ecnh v\u1eadn h\u00e0nh th\u1eadn tr\u1ecdng khi thay th\u1ebf <strong>b\u1ed9 thu ph\u00e1t quang t\u1ed1c \u0111\u1ed9 cao<\/strong> trong c\u00e1c m\u1ea1ng s\u1ea3n xu\u1ea5t.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1200\" height=\"675\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/714851a3c37b479097737a885060e30f.jpg\" alt=\"Risks of Hot Swapping SFP Modules (Real Engineer Experiences)\" class=\"wp-image-3059\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/714851a3c37b479097737a885060e30f.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/714851a3c37b479097737a885060e30f-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/714851a3c37b479097737a885060e30f-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/714851a3c37b479097737a885060e30f-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/714851a3c37b479097737a885060e30f-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">R\u1ee7i ro h\u01b0 h\u1ecfng do x\u1ea3 t\u0129nh \u0111i\u1ec7n (ESD) trong qu\u00e1 tr\u00ecnh thay th\u1ebf module SFP<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t trong nh\u1eefng r\u1ee7i ro th\u01b0\u1eddng \u0111\u01b0\u1ee3c nh\u1eafc \u0111\u1ebfn nh\u1ea5t khi thay th\u1ebf module khi \u0111ang ho\u1ea1t \u0111\u1ed9ng l\u00e0 <strong>x\u1ea3 t\u0129nh \u0111i\u1ec7n (<\/strong><a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/esd-protection-link-pp-smart-factory-transceivers-rj45-cage\/\"><strong>ESD<\/strong><\/a><strong>)<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00ec c\u00e1c module \u0111\u1ec3 h\u1edf c\u00e1c ti\u1ebfp \u0111i\u1ec3m \u0111i\u1ec7n \u1edf m\u00e9p \u0111\u1ea7u n\u1ed1i, n\u00ean ch\u00fang c\u00f3 th\u1ec3 d\u1ec5 b\u1ecb \u1ea3nh h\u01b0\u1edfng b\u1edfi \u0111i\u1ec7n t\u00edch t\u0129nh n\u1ebfu x\u1eed l\u00fd kh\u00f4ng \u0111\u00fang c\u00e1ch. N\u1ebfu k\u1ef9 thu\u1eadt vi\u00ean l\u1eafp ho\u1eb7c th\u00e1o module m\u00e0 kh\u00f4ng th\u1ef1c hi\u1ec7n bi\u1ec7n ph\u00e1p n\u1ed1i \u0111\u1ea5t, x\u1ea3 t\u0129nh \u0111i\u1ec7n c\u00f3 th\u1ec3 g\u00e2y h\u01b0 h\u1ea1i:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>m\u1ea1ch \u0111i\u1ec7n t\u1eed c\u1ee7a module SFP<\/p><\/li>\n\n\n\n<li><p>c\u00e1c ti\u1ebfp \u0111i\u1ec3m \u1ed5 c\u1eafm SFP tr\u00ean switch<\/p><\/li>\n\n\n\n<li><p>m\u1ea1ch giao di\u1ec7n PHY<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c b\u00e1o c\u00e1o kh\u1eafc ph\u1ee5c s\u1ef1 c\u1ed1 t\u1eeb c\u1ed9ng \u0111\u1ed3ng cho th\u1ea5y \u0111\u00f4i khi module c\u00f3 v\u1ebb \u0111\u00e3 \u0111\u01b0\u1ee3c l\u1eafp \u0111\u1eb7t v\u1eadt l\u00fd \u0111\u1ea7y \u0111\u1ee7 nh\u01b0ng l\u1ea1i kh\u00f4ng \u0111\u01b0\u1ee3c ph\u00e1t hi\u1ec7n do h\u01b0 h\u1ecfng ho\u1eb7c ti\u1ebfp x\u00fac \u0111i\u1ec7n k\u00e9m sau khi x\u1eed l\u00fd. Trong nh\u1eefng tr\u01b0\u1eddng h\u1ee3p nh\u01b0 v\u1eady, switch c\u00f3 th\u1ec3 kh\u00f4ng hi\u1ec3n th\u1ecb tr\u1ea1ng th\u00e1i k\u1ebft n\u1ed1i ho\u1eb7c kh\u00f4ng nh\u1eadn ra module cho \u0111\u1ebfn khi module \u0111\u01b0\u1ee3c l\u1eafp l\u1ea1i ho\u1eb7c thay th\u1ebf.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00ec l\u00fd do n\u00e0y, c\u00e1c h\u01b0\u1edbng d\u1eabn l\u1eafp \u0111\u1eb7t th\u01b0\u1eddng khuy\u1ebfn ngh\u1ecb:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>n\u1ed1i \u0111\u1ea5t b\u1ea3n th\u00e2n tr\u01b0\u1edbc khi x\u1eed l\u00fd c\u00e1c module quang<\/p><\/li>\n\n\n\n<li><p>c\u1ea7m module \u1edf hai b\u00ean c\u1ea1nh<\/p><\/li>\n\n\n\n<li><p>tr\u00e1nh ch\u1ea1m v\u00e0o c\u00e1c ch\u00e2n ti\u1ebfp \u0111i\u1ec3m \u0111i\u1ec7n<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">D\u00f9 ch\u1ee9c n\u0103ng thay th\u1ebf khi \u0111ang ho\u1ea1t \u0111\u1ed9ng \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3, c\u00e1c quy tr\u00ecnh x\u1eed l\u00fd an to\u00e0n v\u1eabn r\u1ea5t quan tr\u1ecdng nh\u1eb1m b\u1ea3o v\u1ec7 c\u00e1c linh ki\u1ec7n \u0111i\u1ec7n t\u1eed nh\u1ea1y c\u1ea3m c\u1ee7a transceiver.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">V\u1ea5n \u0111\u1ec1 t\u01b0\u01a1ng th\u00edch v\u1edbi module SFP c\u1ee7a b\u00ean th\u1ee9 ba<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t v\u1ea5n \u0111\u1ec1 ph\u1ed5 bi\u1ebfn kh\u00e1c \u0111\u01b0\u1ee3c c\u00e1c k\u1ef9 s\u01b0 m\u1ea1ng th\u1ea3o lu\u1eadn li\u00ean quan \u0111\u1ebfn kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch gi\u1eefa switch v\u00e0 <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/476093.htm\">SFP c\u1ee7a b\u00ean th\u1ee9 ba<\/a> hay \u0111\u01a1n mode (SMF).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Nhi\u1ec1u switch doanh nghi\u1ec7p th\u1ef1c hi\u1ec7n ki\u1ec3m tra x\u00e1c minh nh\u00e0 s\u1ea3n xu\u1ea5t khi c\u1eafm transceiver. C\u00e1c ki\u1ec3m tra n\u00e0y \u0111\u1ecdc d\u1eef li\u1ec7u \u0111\u1ecbnh danh \u0111\u01b0\u1ee3c l\u01b0u trong EEPROM c\u1ee7a module. N\u1ebfu m\u00e3 nh\u00e0 s\u1ea3n xu\u1ea5t ho\u1eb7c c\u1ea5u h\u00ecnh kh\u00f4ng kh\u1edbp v\u1edbi gi\u00e1 tr\u1ecb k\u1ef3 v\u1ecdng, switch c\u00f3 th\u1ec3:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>v\u00f4 hi\u1ec7u h\u00f3a c\u1ed5ng<\/p><\/li>\n\n\n\n<li><p>b\u00e1o l\u1ed7i transceiver kh\u00f4ng \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3<\/p><\/li>\n\n\n\n<li><p>ng\u0103n giao di\u1ec7n kh\u1edfi \u0111\u1ed9ng th\u00e0nh c\u00f4ng<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c t\u00e0i li\u1ec7u h\u01b0\u1edbng d\u1eabn kh\u1eafc ph\u1ee5c s\u1ef1 c\u1ed1 trong ng\u00e0nh ghi nh\u1eadn r\u1eb1ng nh\u1eefng ki\u1ec3m tra t\u01b0\u01a1ng th\u00edch n\u00e0y l\u00e0 nguy\u00ean nh\u00e2n ph\u1ed5 bi\u1ebfn g\u00e2y th\u1ea5t b\u1ea1i k\u1ebft n\u1ed1i SFP, \u0111\u1eb7c bi\u1ec7t khi module b\u1ecb l\u1eadp tr\u00ecnh sai ho\u1eb7c firmware kh\u00f4ng nh\u1eadn di\u1ec7n \u0111\u01b0\u1ee3c m\u1eabu c\u1ee5 th\u1ec3.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c k\u1ef9 s\u01b0 th\u01b0\u1eddng th\u1ea3o lu\u1eadn v\u1ec1 h\u00e0nh vi n\u00e0y tr\u00ean c\u00e1c c\u1ed9ng \u0111\u1ed3ng m\u1ea1ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00ed d\u1ee5, m\u1ed9t ng\u01b0\u1eddi d\u00f9ng Reddit \u0111ang kh\u1eafc ph\u1ee5c s\u1ef1 c\u1ed1 k\u1ebft n\u1ed1i SFP \u0111\u1ed3ng tr\u1ee5c (copper) b\u00e1o c\u00e1o r\u1eb1ng l\u01b0u l\u01b0\u1ee3ng kh\u00f4ng \u0111i qua k\u1ebft n\u1ed1i khi s\u1eed d\u1ee5ng module c\u1ee7a b\u00ean th\u1ee9 ba, d\u00f9 c\u1ea3 hai c\u1ed5ng \u0111\u1ec1u hi\u1ec3n th\u1ecb tr\u1ea1ng th\u00e1i ho\u1ea1t \u0111\u1ed9ng. Vi\u1ec7c thay th\u1ebf b\u1eb1ng module ch\u00ednh h\u00e3ng \u0111\u00e3 kh\u00f4i ph\u1ee5c k\u1ebft n\u1ed1i b\u00ecnh th\u01b0\u1eddng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Nh\u1eefng kinh nghi\u1ec7m n\u00e0y cho th\u1ea5y, m\u1eb7c d\u00f9 c\u00e1c module quang c\u1ee7a b\u00ean th\u1ee9 ba t\u01b0\u01a1ng th\u00edch c\u00f3 th\u1ec3 ho\u1ea1t \u0111\u1ed9ng \u1ed5n \u0111\u1ecbnh, ch\u00fang v\u1eabn ph\u1ea3i \u0111\u01b0\u1ee3c m\u00e3 h\u00f3a \u0111\u00fang v\u00e0 x\u00e1c th\u1ef1c ph\u00f9 h\u1ee3p v\u1edbi n\u1ec1n t\u1ea3ng switch m\u1ee5c ti\u00eau.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Module SFP \u0111\u1ed3ng tr\u1ee5c (copper) g\u00e2y m\u1ea5t \u1ed5n \u0111\u1ecbnh switch<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t r\u1ee7i ro kh\u00e1c th\u01b0\u1eddng \u0111\u01b0\u1ee3c th\u1ea3o lu\u1eadn tr\u00ean c\u00e1c di\u1ec5n \u0111\u00e0n m\u1ea1ng li\u00ean quan \u0111\u1ebfn module SFP \u0111\u1ed3ng tr\u1ee5c (RJ45).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Kh\u00e1c v\u1edbi transceiver s\u1ee3i quang, module <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/482688.htm\">10GBASE-T<\/a> SFP+ \u0111\u1ed3ng tr\u1ee5c t\u00edch h\u1ee3p s\u1eb5n b\u1ed9 PHY Ethernet v\u00e0 y\u00eau c\u1ea7u m\u1ee9c c\u00f4ng su\u1ea5t cao h\u01a1n \u0111\u00e1ng k\u1ec3. Do \u0111\u00f3, ch\u00fang c\u00f3 th\u1ec3 sinh nhi\u1ec7t nhi\u1ec1u h\u01a1n v\u00e0 ti\u00eau th\u1ee5 nhi\u1ec1u \u0111i\u1ec7n n\u0103ng h\u01a1n t\u1eeb c\u1ed5ng switch.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">T\u00e0i li\u1ec7u k\u1ef9 thu\u1eadt kh\u1eafc ph\u1ee5c s\u1ef1 c\u1ed1 ghi nh\u1eadn r\u1eb1ng module SFP \u0111\u1ed3ng tr\u1ee5c c\u00f3 th\u1ec3 n\u00f3ng l\u00ean b\u1ea5t th\u01b0\u1eddng ho\u1eb7c g\u1eb7p hi\u1ec7n t\u01b0\u1ee3ng m\u1ea5t \u1ed5n \u0111\u1ecbnh k\u1ebft n\u1ed1i khi m\u1ee9c ti\u00eau th\u1ee5 \u0111i\u1ec7n v\u01b0\u1ee3t qu\u00e1 ng\u00e2n s\u00e1ch c\u00f4ng su\u1ea5t \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3 b\u1edfi c\u1ed5ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c b\u00e1o c\u00e1o th\u1ef1c t\u1ebf t\u1eeb di\u1ec5n \u0111\u00e0n c\u0169ng ph\u1ea3n \u00e1nh h\u00e0nh vi n\u00e0y.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00ed d\u1ee5, m\u1ed9t ng\u01b0\u1eddi d\u00f9ng Reddit b\u00e1o c\u00e1o r\u1eb1ng vi\u1ec7c th\u00eam nhi\u1ec1u module SFP+ \u0111\u1ed3ng tr\u1ee5c khi\u1ebfn thi\u1ebft b\u1ecb t\u01b0\u1eddng l\u1eeda c\u1ee7a h\u1ecd tr\u1edf n\u00ean kh\u00f4ng ph\u1ea3n h\u1ed3i trong v\u00f2ng 30 ph\u00fat. Vi\u1ec7c g\u1ee1 b\u1ecf c\u00e1c module ngay l\u1eadp t\u1ee9c kh\u00f4i ph\u1ee5c t\u00ednh \u1ed5n \u0111\u1ecbnh c\u1ee7a h\u1ec7 th\u1ed1ng, v\u00e0 ng\u01b0\u1eddi d\u00f9ng l\u01b0u \u00fd r\u1eb1ng c\u00e1c module n\u00e0y <strong>\u201cn\u00f3ng c\u1ef1c \u0111\u1ed9\u2014g\u1ea7n nh\u01b0 kh\u00f4ng th\u1ec3 ch\u1ea1m v\u00e0o.\u201d<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t k\u1ef9 s\u01b0 kh\u00e1c m\u00f4 t\u1ea3 c\u00e1ch module SFP \u0111\u1ed3ng tr\u1ee5c c\u00f3 th\u1ec3 duy tr\u00ec tr\u1ea1ng th\u00e1i k\u1ebft n\u1ed1i \u0111i\u1ec7n ngay c\u1ea3 khi c\u1ed5ng switch b\u1ecb v\u00f4 hi\u1ec7u h\u00f3a ho\u1eb7c thi\u1ebft b\u1ecb \u0111ang kh\u1edfi \u0111\u1ed9ng l\u1ea1i, do b\u1ed9 PHY n\u1ed9i b\u1ed9 c\u1ee7a module v\u1eabn \u0111\u01b0\u1ee3c c\u1ea5p \u0111i\u1ec7n. H\u00e0nh vi n\u00e0y c\u00f3 th\u1ec3 can thi\u1ec7p v\u00e0o c\u01a1 ch\u1ebf ph\u00e1t hi\u1ec7n chuy\u1ec3n \u0111\u1ed5i d\u1ef1 ph\u00f2ng (failover) d\u1ef1a tr\u00ean tr\u1ea1ng th\u00e1i k\u1ebft n\u1ed1i trong c\u00e1c c\u1ea5u h\u00ecnh m\u1ea1ng d\u1ef1 ph\u00f2ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Nh\u1eefng v\u00ed d\u1ee5 n\u00e0y cho th\u1ea5y module SFP \u0111\u1ed3ng tr\u1ee5c c\u00f3 h\u00e0nh vi kh\u00e1c bi\u1ec7t so v\u1edbi transceiver quang, \u0111i\u1ec1u n\u00e0y \u0111\u00f4i khi d\u1eabn \u0111\u1ebfn h\u00e0nh vi m\u1ea1ng b\u1ea5t ng\u1edd.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">C\u00e1c tr\u01b0\u1eddng h\u1ee3p hi\u1ebfm g\u1eb7p v\u1ec1 s\u1ef1 ki\u1ec7n m\u1ea1ng trong qu\u00e1 tr\u00ecnh thay th\u1ebf module SFP khi \u0111ang ho\u1ea1t \u0111\u1ed9ng<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1eb7c d\u00f9 hi\u1ebfm, c\u00e1c k\u1ef9 s\u01b0 \u0111\u00f4i khi b\u00e1o c\u00e1o h\u00e0nh vi m\u1ea1ng b\u1ea5t th\u01b0\u1eddng khi c\u1eafm ho\u1eb7c th\u00e1o module quang tr\u00ean c\u00e1c h\u1ec7 th\u1ed1ng \u0111ang ho\u1ea1t \u0111\u1ed9ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Trong m\u1ed9t cu\u1ed9c th\u1ea3o lu\u1eadn, m\u1ed9t qu\u1ea3n tr\u1ecb vi\u00ean m\u1ea1ng quan s\u00e1t th\u1ea5y vi\u1ec7c th\u00e1o module SFP kh\u1ecfi switch x\u1ebfp ch\u1ed3ng (stacked switch) \u0111\u00e3 g\u00e2y ra vi\u1ec7c kh\u1edfi \u0111\u1ed9ng l\u1ea1i thi\u1ebft b\u1ecb ch\u00ednh m\u1ed9t c\u00e1ch b\u1ea5t ng\u1edd trong qu\u00e1 tr\u00ecnh v\u1eadn h\u00e0nh.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t b\u00e1o c\u00e1o kh\u00e1c ghi nh\u1eadn r\u1eb1ng vi\u1ec7c c\u1eafm ho\u1eb7c th\u00e1o module g\u00e2y ra c\u00e1c chuy\u1ec3n \u0111\u1ed5i t\u1ea1m th\u1eddi c\u1ee7a giao th\u1ee9c Spanning Tree trong m\u1ea1ng do c\u00e1c g\u00f3i \u0111i\u1ec1u khi\u1ec3n b\u1ecb ch\u1eadm trong s\u1ef1 ki\u1ec7n n\u00e0y.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c tr\u01b0\u1eddng h\u1ee3p n\u00e0y th\u01b0\u1eddng li\u00ean quan \u0111\u1ebfn l\u1ed7i ph\u1ea7n m\u1ec1m\u56fa\u4ef6, c\u00e1c k\u00edch ho\u1ea1t c\u1ea5u h\u00ecnh ho\u1eb7c c\u00e1c \u0111i\u1ec1u ki\u1ec7n ph\u1ea7n c\u1ee9ng c\u1ee5 th\u1ec3, ch\u1ee9 kh\u00f4ng ph\u1ea3i do h\u1ea1n ch\u1ebf c\u1ee7a ch\u00ednh thi\u1ebft k\u1ebf SFP. D\u1eabu v\u1eady, ch\u00fang cho th\u1ea5y l\u00fd do v\u00ec sao m\u1ed9t s\u1ed1 k\u1ef9 s\u01b0 v\u1eabn \u01b0u ti\u00ean thay th\u1ebf m\u00f4-\u0111un trong c\u00e1c c\u1eeda s\u1ed5 b\u1ea3o tr\u00ec \u1edf c\u00e1c m\u00f4i tr\u01b0\u1eddng quan tr\u1ecdng.<\/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\">Nh\u00ecn chung, c\u00e1c m\u00f4-\u0111un quang SFP \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 h\u1ed7 tr\u1ee3 thay n\u00f3ng, v\u00e0 h\u1ea7u h\u1ebft c\u00e1c b\u1ed9 chuy\u1ec3n m\u1ea1ch hi\u1ec7n \u0111\u1ea1i \u0111\u1ec1u h\u1ed7 tr\u1ee3 vi\u1ec7c thay th\u1ebf ch\u00fang trong khi h\u1ec7 th\u1ed1ng v\u1eabn \u0111ang \u0111\u01b0\u1ee3c c\u1ea5p \u0111i\u1ec7n. Tuy nhi\u00ean, kinh nghi\u1ec7m th\u1ef1c t\u1ebf cho th\u1ea5y m\u1ed9t s\u1ed1 y\u1ebfu t\u1ed1 v\u1eabn c\u00f3 th\u1ec3 g\u00e2y r\u1ee7i ro:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>t\u0129nh \u0111i\u1ec7n trong qu\u00e1 tr\u00ecnh l\u1eafp \u0111\u1eb7t<\/p><\/li>\n\n\n\n<li><p>ki\u1ec3m tra t\u00ednh t\u01b0\u01a1ng th\u00edch v\u1edbi c\u00e1c m\u00f4-\u0111un c\u1ee7a b\u00ean th\u1ee9 ba<\/p><\/li>\n\n\n\n<li><p>m\u1ee9c ti\u00eau th\u1ee5 c\u00f4ng su\u1ea5t cao c\u1ee7a c\u00e1c m\u00f4-\u0111un SFP \u0111\u1ed3ng tr\u1ee5c RJ45<\/p><\/li>\n\n\n\n<li><p>c\u00e1c t\u00e1c \u0111\u1ed9ng ph\u1ee5 ng\u1eabu nhi\u00ean \u0111\u1ed1i v\u1edbi ph\u1ea7n m\u1ec1m\u56fa\u4ef6 ho\u1eb7c giao th\u1ee9c m\u1ea1ng<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c hi\u1ec3u r\u00f5 nh\u1eefng v\u1ea5n \u0111\u1ec1 ti\u1ec1m \u1ea9n n\u00e0y gi\u00fap c\u00e1c k\u1ef9 s\u01b0 m\u1ea1ng th\u1ef1c hi\u1ec7n thao t\u00e1c thay n\u00f3ng m\u00f4-\u0111un SFP m\u1ed9t c\u00e1ch an to\u00e0n v\u00e0 d\u1ef1 \u0111o\u00e1n \u0111\u01b0\u1ee3c h\u01a1n, \u0111\u1eb7c bi\u1ec7t trong c\u00e1c m\u1ea1ng s\u1ea3n xu\u1ea5t y\u00eau c\u1ea7u \u0111\u1ed9 kh\u1ea3 d\u1ee5ng cao.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u2747\ufe0f C\u00e1c Th\u1ef1c h\u00e0nh T\u1ed1t nh\u1ea5t \u0111\u1ec3 Thay N\u00f3ng SFP An to\u00e0n<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1eb7c d\u00f9 c\u00e1c m\u00f4-\u0111un SFP \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 h\u1ed7 tr\u1ee3 thay n\u00f3ng, nh\u01b0ng vi\u1ec7c tu\u00e2n th\u1ee7 \u0111\u00fang quy tr\u00ecnh v\u1eadn h\u00e0nh s\u1ebd gi\u00fap ng\u0103n ng\u1eeba gi\u00e1n \u0111o\u1ea1n m\u1ea1ng v\u00e0 h\u01b0 h\u1ecfng ph\u1ea7n c\u1ee9ng. Trong c\u00e1c m\u1ea1ng s\u1ea3n xu\u1ea5t\u2014\u0111\u1eb7c bi\u1ec7t l\u00e0 trung t\u00e2m d\u1eef li\u1ec7u v\u00e0 m\u00f4i tr\u01b0\u1eddng chuy\u1ec3n m\u1ea1ch doanh nghi\u1ec7p\u2014c\u00e1c k\u1ef9 s\u01b0 th\u01b0\u1eddng \u00e1p d\u1ee5ng m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p c\u00f3 c\u1ea5u tr\u00fac khi thay th\u1ebf m\u00f4-\u0111un.<\/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\/d43d163d831745a2957d2c6c1c47e1fd.jpg\" alt=\"Best Practices for Safe SFP Hot Swapping\" class=\"wp-image-3060\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/d43d163d831745a2957d2c6c1c47e1fd.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/d43d163d831745a2957d2c6c1c47e1fd-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/d43d163d831745a2957d2c6c1c47e1fd-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/d43d163d831745a2957d2c6c1c47e1fd-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/d43d163d831745a2957d2c6c1c47e1fd-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c th\u1ef1c h\u00e0nh t\u1ed1t nh\u1ea5t d\u01b0\u1edbi \u0111\u00e2y \u0111\u01b0\u1ee3c c\u00e1c nh\u00e0 cung c\u1ea5p khuy\u1ebfn ngh\u1ecb r\u1ed9ng r\u00e3i trong t\u00e0i li\u1ec7u h\u01b0\u1edbng d\u1eabn l\u1eafp \u0111\u1eb7t v\u00e0 th\u01b0\u1eddng \u0111\u01b0\u1ee3c c\u00e1c qu\u1ea3n tr\u1ecb vi\u00ean m\u1ea1ng chia s\u1ebb trong c\u00e1c ho\u1ea1t \u0111\u1ed9ng th\u1ef1c \u0111\u1ecba.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Quy tr\u00ecnh T\u1eebng b\u01b0\u1edbc \u0111\u1ec3 Thay Th\u1ebf SFP M\u1ed9t C\u00e1ch An To\u00e0n<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c thay th\u1ebf m\u1ed9t m\u00f4-\u0111un SFP trong khi b\u1ed9 chuy\u1ec3n m\u1ea1ch \u0111ang \u0111\u01b0\u1ee3c c\u1ea5p \u0111i\u1ec7n c\u1ea7n \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n c\u1ea9n th\u1eadn nh\u1eb1m tr\u00e1nh l\u00e0m h\u1ecfng m\u00f4-\u0111un, c\u1ed5ng ho\u1eb7c s\u1ee3i c\u00e1p quang k\u1ebft n\u1ed1i.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t quy tr\u00ecnh thay th\u1ebf an to\u00e0n \u0111i\u1ec3n h\u00ecnh bao g\u1ed3m c\u00e1c b\u01b0\u1edbc sau:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><p><strong>X\u00e1c \u0111\u1ecbnh giao di\u1ec7n \u0111\u00fang<\/strong><\/p><p>X\u00e1c minh c\u1ed5ng n\u00e0o ch\u1ee9a m\u00f4-\u0111un SFP c\u1ea7n \u0111\u01b0\u1ee3c thay th\u1ebf. Ki\u1ec3m tra tr\u1ea1ng th\u00e1i giao di\u1ec7n th\u00f4ng qua CLI c\u1ee7a b\u1ed9 chuy\u1ec3n m\u1ea1ch ho\u1eb7c giao di\u1ec7n qu\u1ea3n tr\u1ecb.<\/p><\/li>\n\n\n\n<li><p><strong>Ng\u1eaft k\u1ebft n\u1ed1i c\u00e1p m\u1ea1ng<\/strong><\/p><p>Th\u00e1o c\u00e1p n\u1ed1i s\u1ee3i quang ho\u1eb7c c\u00e1p Ethernet k\u1ebft n\u1ed1i v\u1edbi m\u00f4-\u0111un. Vi\u1ec7c n\u00e0y ng\u0103n ng\u1eeba l\u1ef1c c\u0103ng l\u00ean b\u1ed9 thu ph\u00e1t trong qu\u00e1 tr\u00ecnh th\u00e1o r\u1eddi.<\/p><\/li>\n\n\n\n<li><p><strong>Gi\u1ea3i ph\u00f3ng ch\u1ed1t kh\u00f3a m\u00f4-\u0111un<\/strong><\/p><p>Ph\u1ea7n l\u1edbn c\u00e1c m\u00f4-\u0111un quang SFP s\u1eed d\u1ee5ng c\u01a1 ch\u1ebf ch\u1ed1t g\u1eadp ho\u1eb7c thanh k\u00e9o. T\u1eeb t\u1eeb k\u00e9o ch\u1ed1t \u0111\u1ec3 m\u1edf kh\u00f3a m\u00f4-\u0111un kh\u1ecfi khoang SFP.<\/p><\/li>\n\n\n\n<li><p><strong>Th\u00e1o b\u1ed9 thu ph\u00e1t<\/strong><\/p><p>T\u1eeb t\u1eeb r\u00fat th\u1eb3ng m\u00f4-\u0111un b\u1ed9 thu ph\u00e1t quang ra kh\u1ecfi c\u1ed5ng. Tr\u00e1nh xoay ho\u1eb7c d\u00f9ng l\u1ef1c qu\u00e1 m\u1ea1nh.<\/p><\/li>\n\n\n\n<li><p><strong>L\u1eafp m\u00f4-\u0111un thay th\u1ebf<\/strong><\/p><p>\u0110\u1ea9y nh\u1eb9 m\u00f4-\u0111un b\u1ed9 thu ph\u00e1t SFP m\u1edbi v\u00e0o khoang SFP cho \u0111\u1ebfn khi nghe ti\u1ebfng \u201cc\u1ea1ch\u201d b\u00e1o hi\u1ec7u \u0111\u00e3 l\u1eafp \u0111\u00fang v\u1ecb tr\u00ed.<\/p><\/li>\n\n\n\n<li><p><strong>K\u1ebft n\u1ed1i l\u1ea1i c\u00e1p quang ho\u1eb7c c\u00e1p \u0111\u1ed3ng<\/strong><\/p><p>G\u1eafn l\u1ea1i c\u00e1p m\u1ea1ng v\u00e0 x\u00e1c nh\u1eadn k\u1ebft n\u1ed1i \u0111\u00e3 \u0111\u01b0\u1ee3c si\u1ebft ch\u1eb7t.<\/p><\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c tu\u00e2n th\u1ee7 c\u00e1c b\u01b0\u1edbc tr\u00ean gi\u00fap \u0111\u1ea3m b\u1ea3o b\u1ed9 chuy\u1ec3n m\u1ea1ch ph\u00e1t hi\u1ec7n v\u00e0 kh\u1edfi t\u1ea1o m\u00f4-\u0111un quang thay th\u1ebf m\u1ed9t c\u00e1ch ch\u00ednh x\u00e1c.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Khi n\u00e0o n\u00ean t\u1eaft c\u1ed5ng tr\u01b0\u1edbc khi th\u00e1o m\u00f4-\u0111un<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Trong nhi\u1ec1u tr\u01b0\u1eddng h\u1ee3p, <strong>m\u00f4-\u0111un SFP c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c th\u00e1o ra m\u00e0 kh\u00f4ng c\u1ea7n t\u1eaft c\u1ed5ng<\/strong>, b\u1edfi v\u00ec b\u1ed9 chuy\u1ec3n m\u1ea1ch t\u1ef1 \u0111\u1ed9ng ph\u00e1t hi\u1ec7n s\u1ef1 ki\u1ec7n th\u00e1o r\u1eddi. Tuy nhi\u00ean, m\u1ed9t s\u1ed1 k\u1ef9 s\u01b0 m\u1ea1ng v\u1eabn \u01b0u ti\u00ean t\u1eaft giao di\u1ec7n tr\u01b0\u1edbc khi thay th\u1ebf m\u00f4-\u0111un tr\u00ean c\u00e1c li\u00ean k\u1ebft quan tr\u1ecdng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c t\u1eaft c\u1ed5ng tr\u01b0\u1edbc khi th\u00e1o b\u1ed9 thu ph\u00e1t c\u00f3 th\u1ec3 gi\u00fap:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>ng\u0103n c\u00e1c b\u1ea3n ghi l\u1ed7i kh\u00f4ng c\u1ea7n thi\u1ebft<\/p><\/li>\n\n\n\n<li><p>tr\u00e1nh c\u00e1c thay \u0111\u1ed5i tr\u1ea1ng th\u00e1i li\u00ean k\u1ebft di\u1ec5n ra nhanh ch\u00f3ng<\/p><\/li>\n\n\n\n<li><p>gi\u1ea3m thi\u1ec3u c\u00e1c s\u1ef1 ki\u1ec7n t\u00e1i h\u1ed9i t\u1ee5 giao th\u1ee9c<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00ed d\u1ee5, c\u00e1c qu\u1ea3n tr\u1ecb vi\u00ean c\u00f3 th\u1ec3 t\u1ea1m th\u1eddi t\u1eaft giao di\u1ec7n b\u1eb1ng c\u00e1c l\u1ec7nh nh\u01b0:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>interface ethernet x\/x<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">Sau khi l\u1eafp m\u00f4-\u0111un m\u1edbi, giao di\u1ec7n c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c b\u1eadt l\u1ea1i.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Bi\u1ec7n ph\u00e1p ph\u00f2ng ng\u1eeba n\u00e0y \u0111\u1eb7c bi\u1ec7t h\u1eefu \u00edch khi l\u00e0m vi\u1ec7c v\u1edbi <strong>c\u00e1c li\u00ean k\u1ebft l\u00ean (uplinks), c\u00e1c li\u00ean k\u1ebft t\u1eadp h\u1ee3p (LACP) ho\u1eb7c c\u00e1c giao di\u1ec7n \u0111\u1ecbnh tuy\u1ebfn<\/strong> n\u01a1i c\u00e1c thay \u0111\u1ed5i li\u00ean k\u1ebft b\u1ea5t ng\u1edd c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh c\u1ee7a m\u1ea1ng.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">L\u00e0m s\u1ea1ch \u0111\u1ea7u n\u1ed1i s\u1ee3i quang tr\u01b0\u1edbc khi k\u1ebft n\u1ed1i l\u1ea1i<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t trong nh\u1eefng b\u01b0\u1edbc th\u01b0\u1eddng b\u1ecb b\u1ecf qua nh\u1ea5t trong qu\u00e1 tr\u00ecnh thay th\u1ebf SFP l\u00e0 l\u00e0m s\u1ea1ch <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/common-fiber-connector-types-optical-transceivers\/\">c\u00e1p quang<\/a>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">B\u1ee5i ho\u1eb7c t\u1ea1p ch\u1ea5t tr\u00ean \u0111\u1ea7u n\u1ed1i s\u1ee3i quang c\u00f3 th\u1ec3 l\u00e0m suy gi\u1ea3m \u0111\u00e1ng k\u1ec3 hi\u1ec7u n\u0103ng quang h\u1ecdc v\u00e0 d\u1eabn \u0111\u1ebfn c\u00e1c v\u1ea5n \u0111\u1ec1 nh\u01b0:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>t\u1ed5n hao quang cao<\/p><\/li>\n\n\n\n<li><p>li\u00ean k\u1ebft ch\u1eadp ch\u1eddn<\/p><\/li>\n\n\n\n<li><p>kho\u1ea3ng c\u00e1ch truy\u1ec1n d\u1eabn gi\u1ea3m<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Tr\u01b0\u1edbc khi k\u1ebft n\u1ed1i l\u1ea1i c\u00e1p s\u1ee3i quang v\u1edbi m\u00f4-\u0111un quang, c\u00e1c k\u1ef9 s\u01b0 th\u01b0\u1eddng th\u1ef1c hi\u1ec7n quy tr\u00ecnh l\u00e0m s\u1ea1ch nhanh:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><p>Ki\u1ec3m tra \u0111\u1ea7u n\u1ed1i s\u1ee3i quang n\u1ebfu c\u00f3 th\u1ec3.<\/p><\/li>\n\n\n\n<li><p>S\u1eed d\u1ee5ng b\u00fat l\u00e0m s\u1ea1ch s\u1ee3i quang ho\u1eb7c kh\u0103n lau kh\u00f4ng x\u01a1.<\/p><\/li>\n\n\n\n<li><p>L\u00e0m s\u1ea1ch c\u1ea3 \u0111\u1ea7u n\u1ed1i s\u1ee3i quang l\u1eabn giao di\u1ec7n c\u1ed5ng.<\/p><\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">Ngay c\u1ea3 m\u1ed9t h\u1ea1t b\u1ee5i nh\u1ecf c\u0169ng c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn ch\u1ea5t l\u01b0\u1ee3ng t\u00edn hi\u1ec7u quang, do \u0111\u00f3 b\u01b0\u1edbc n\u00e0y r\u1ea5t quan tr\u1ecdng khi l\u1eafp \u0111\u1eb7t <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/478227.htm\">c\u00e1c module SFP s\u1ee3i quang<\/a> trong m\u1ea1ng t\u1ed1c \u0111\u1ed9 cao.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">X\u00e1c minh tr\u1ea1ng th\u00e1i li\u00ean k\u1ebft sau khi thay th\u1ebf<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Sau khi l\u1eafp m\u1ed9t m\u00f4-\u0111un b\u1ed9 thu ph\u00e1t quang m\u1edbi, b\u01b0\u1edbc cu\u1ed1i c\u00f9ng l\u00e0 x\u00e1c nh\u1eadn giao di\u1ec7n kh\u1edfi t\u1ea1o \u0111\u00fang c\u00e1ch.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">H\u1ea7u h\u1ebft c\u00e1c b\u1ed9 chuy\u1ec3n m\u1ea1ch t\u1ef1 \u0111\u1ed9ng ph\u00e1t hi\u1ec7n m\u00f4-\u0111un v\u00e0 \u0111\u01b0a giao di\u1ec7n tr\u1edf l\u1ea1i ho\u1ea1t \u0111\u1ed9ng trong v\u00e0i gi\u00e2y. C\u00e1c k\u1ef9 s\u01b0 th\u01b0\u1eddng x\u00e1c minh k\u1ebft n\u1ed1i b\u1eb1ng nhi\u1ec1u ki\u1ec3m tra kh\u00e1c nhau.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Ki\u1ec3m tra tr\u1ea1ng th\u00e1i giao di\u1ec7n<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">S\u1eed d\u1ee5ng c\u00e1c l\u1ec7nh CLI ho\u1eb7c c\u00f4ng c\u1ee5 gi\u00e1m s\u00e1t m\u1ea1ng \u0111\u1ec3 x\u00e1c nh\u1eadn tr\u1ea1ng th\u00e1i giao di\u1ec7n:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>li\u00ean k\u1ebft l\u00ean\/xu\u1ed1ng (link up\/down)<\/p><\/li>\n\n\n\n<li><p>t\u1ed1c \u0111\u1ed9 \u0111\u00e3 th\u01b0\u01a1ng l\u01b0\u1ee3ng (negotiated speed)<\/p><\/li>\n\n\n\n<li><p>b\u1ed9 \u0111\u1ebfm l\u1ed7i (error counters)<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>X\u00e1c minh th\u00f4ng tin b\u1ed9 thu ph\u00e1t<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Nhi\u1ec1u b\u1ed9 chuy\u1ec3n m\u1ea1ch cho ph\u00e9p qu\u1ea3n tr\u1ecb vi\u00ean hi\u1ec3n th\u1ecb chi ti\u1ebft v\u1ec1 m\u00f4-\u0111un SFP \u0111\u00e3 l\u1eafp, bao g\u1ed3m:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>lo\u1ea1i m\u00f4-\u0111un<\/p><\/li>\n\n\n\n<li><p>t\u00ean nh\u00e0 cung c\u1ea5p<\/p><\/li>\n\n\n\n<li><p>b\u01b0\u1edbc s\u00f3ng<\/p><\/li>\n\n\n\n<li><p>kho\u1ea3ng c\u00e1ch h\u1ed7 tr\u1ee3<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>X\u00e1c nh\u1eadn ch\u1ea9n \u0111o\u00e1n quang h\u1ecdc<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">N\u1ebfu m\u00f4-\u0111un h\u1ed7 tr\u1ee3 <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), h\u00e3y x\u00e1c minh c\u00e1c tham s\u1ed1 nh\u01b0:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>c\u00f4ng su\u1ea5t quang ph\u00e1t<\/p><\/li>\n\n\n\n<li><p>c\u00f4ng su\u1ea5t quang nh\u1eadn<\/p><\/li>\n\n\n\n<li><p>nhi\u1ec7t \u0111\u1ed9 m\u00f4-\u0111un<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c gi\u00e1 tr\u1ecb n\u00e0y gi\u00fap x\u00e1c nh\u1eadn r\u1eb1ng b\u1ed9 thu ph\u00e1t quang \u0111ang ho\u1ea1t \u0111\u1ed9ng trong ph\u1ea1m vi b\u00ecnh th\u01b0\u1eddng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Ki\u1ec3m tra kh\u1ea3 n\u0103ng k\u1ebft n\u1ed1i m\u1ea1ng<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Cu\u1ed1i c\u00f9ng, x\u00e1c th\u1ef1c kh\u1ea3 n\u0103ng k\u1ebft n\u1ed1i b\u1eb1ng c\u00e1ch g\u1eedi l\u01b0u l\u01b0\u1ee3ng ki\u1ec3m tra ho\u1eb7c x\u00e1c minh r\u1eb1ng c\u00e1c ch\u1ee9c n\u0103ng \u0111\u1ecbnh tuy\u1ebfn v\u00e0 chuy\u1ec3n m\u1ea1ch \u0111ang ho\u1ea1t \u0111\u1ed9ng b\u00ecnh th\u01b0\u1eddng.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">M\u1eb9o v\u1eadn h\u00e0nh khi thay th\u1ebf m\u00f4-\u0111un SFP<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1eb7c d\u00f9 c\u00e1c m\u00f4-\u0111un quang SFP c\u00f3 th\u1ec3 thay n\u00f3ng, vi\u1ec7c thay th\u1ebf m\u00f4-\u0111un tr\u00ean c\u00e1c li\u00ean k\u1ebft m\u1ea1ng quan tr\u1ecdng th\u01b0\u1eddng \u0111\u01b0\u1ee3c l\u00ean l\u1ecbch trong c\u1eeda s\u1ed5 b\u1ea3o tr\u00ec ho\u1eb7c th\u1ef1c hi\u1ec7n khi c\u00f3 s\u1eb5n c\u00e1c li\u00ean k\u1ebft d\u1ef1 ph\u00f2ng. C\u00e1ch ti\u1ebfp c\u1eadn n\u00e0y \u0111\u1ea3m b\u1ea3o r\u1eb1ng b\u1ea5t k\u1ef3 h\u00e0nh vi kh\u00f4ng mong \u0111\u1ee3i n\u00e0o c\u1ee7a giao di\u1ec7n c\u0169ng s\u1ebd kh\u00f4ng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn l\u01b0u l\u01b0\u1ee3ng s\u1ea3n xu\u1ea5t.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">B\u1eb1ng c\u00e1ch tu\u00e2n th\u1ee7 c\u00e1c th\u1ef1c ti\u1ec5n t\u1ed1t nh\u1ea5t n\u00e0y, c\u00e1c qu\u1ea3n tr\u1ecb vi\u00ean m\u1ea1ng c\u00f3 th\u1ec3 thay th\u1ebf an to\u00e0n c\u00e1c b\u1ed9 thu ph\u00e1t SFP trong khi v\u1eabn duy tr\u00ec ho\u1ea1t \u0111\u1ed9ng m\u1ea1ng \u0111\u00e1ng tin c\u1eady.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u2747\ufe0f Khi n\u00e0o b\u1ea1n n\u00ean tr\u00e1nh thay n\u00f3ng m\u00f4-\u0111un SFP?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1eb7c d\u00f9 c\u00e1c m\u00f4-\u0111un SFP \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 h\u1ed7 tr\u1ee3 thay n\u00f3ng, nh\u01b0ng v\u1eabn t\u1ed3n t\u1ea1i m\u1ed9t s\u1ed1 t\u00ecnh hu\u1ed1ng m\u00e0 vi\u1ec7c thay th\u1ebf m\u00f4-\u0111un khi c\u00f4ng t\u1eafc \u0111ang ho\u1ea1t \u0111\u1ed9ng c\u00f3 th\u1ec3 g\u00e2y ra r\u1ee7i ro kh\u00f4ng c\u1ea7n thi\u1ebft.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Trong c\u00e1c m\u1ea1ng s\u1ea3n xu\u1ea5t, c\u00e1c qu\u1ea3n tr\u1ecb vi\u00ean gi\u00e0u kinh nghi\u1ec7m th\u01b0\u1eddng \u0111\u00e1nh gi\u00e1 b\u1ed1i c\u1ea3nh v\u1eadn h\u00e0nh tr\u01b0\u1edbc khi th\u00e1o ho\u1eb7c c\u1eafm m\u00f4-\u0111un, \u0111\u1eb7c bi\u1ec7t khi c\u1ed5ng \u0111ang x\u1eed l\u00fd l\u01b0u l\u01b0\u1ee3ng quan tr\u1ecdng ho\u1eb7c khi \u0111i\u1ec1u ki\u1ec7n ph\u1ea7n c\u1ee9ng ch\u01b0a r\u00f5 r\u00e0ng.<\/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\/bc2bf631d261486db987a41ddf955cfa.jpg\" alt=\"When Should You Avoid Hot Swapping an SFP Module?\" class=\"wp-image-3061\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/bc2bf631d261486db987a41ddf955cfa.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/bc2bf631d261486db987a41ddf955cfa-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/bc2bf631d261486db987a41ddf955cfa-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/bc2bf631d261486db987a41ddf955cfa-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/bc2bf631d261486db987a41ddf955cfa-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">So s\u00e1nh thay n\u00f3ng SFP v\u1edbi c\u00e1c lo\u1ea1i b\u1ed9 thu ph\u00e1t kh\u00e1c<\/h3>\n\n\n\n<figure class=\"wp-block-table\">\n<table class=\"has-fixed-layout\">\n<colgroup><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><\/colgroup><tbody><tr><th colspan=\"1\" rowspan=\"1\"><p>T\u00ednh n\u0103ng \/ Lo\u1ea1i m\u00f4-\u0111un<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p><strong>SFP (1G)<\/strong><\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p><strong>SFP+ (10G)<\/strong><\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p><strong>SFP28 (25G)<\/strong><\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p><strong>QSFP+ (40G)<\/strong><\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p><strong>QSFP28 \/ QSFP-DD (100G \/ 200G \/ 400G)<\/strong><\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>H\u1ed7 tr\u1ee3 thay th\u1ebf n\u00f3ng<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\u2705 C\u00f3<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\u2705 C\u00f3<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\u2705 C\u00f3<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\u2705 C\u00f3<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\u2705 C\u00f3 (t\u00f9y thu\u1ed9c v\u00e0o kh\u1ea3 n\u0103ng h\u1ed7 tr\u1ee3 c\u1ee7a c\u00f4ng t\u1eafc)<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>M\u1ee9c ti\u00eau th\u1ee5 \u0111i\u1ec7n n\u0103ng \u0111i\u1ec3n h\u00ecnh<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Th\u1ea5p (~1W)<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Th\u1ea5p\u2013Trung b\u00ecnh (~1\u20132,5W)<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Trung b\u00ecnh (~2\u20133,5W)<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Cao (~3\u20135W)<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>R\u1ea5t cao (~5\u201310W)<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>C\u00f3 s\u1eb5n bi\u1ebfn th\u1ec3 \u0111\u1ed3ng<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\u2705 SFP RJ45<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\u2705 SFP+ 10GBASE-T<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\u274c<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\u274c<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\u274c<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>C\u00f3 s\u1eb5n bi\u1ebfn th\u1ec3 s\u1ee3i quang<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\u2705 \u0110\u01a1n ch\u1ebf \u0111\u1ed9 \/ \u0110a ch\u1ebf \u0111\u1ed9<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\u2705 \u0110\u01a1n ch\u1ebf \u0111\u1ed9 \/ \u0110a ch\u1ebf \u0111\u1ed9<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\u2705 \u0110\u01a1n ch\u1ebf \u0111\u1ed9 \/ \u0110a ch\u1ebf \u0111\u1ed9<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\u2705 \u0110a ch\u1ebf \u0111\u1ed9 \/ \u0110\u01a1n ch\u1ebf \u0111\u1ed9<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\u2705 \u0110a ch\u1ebf \u0111\u1ed9 \/ \u0110\u01a1n ch\u1ebf \u0111\u1ed9<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>Ph\u00e1t hi\u1ec7n c\u1ed5ng c\u00f4ng t\u1eafc<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>G\u00e1n t\u1ef1 \u0111\u1ed9ng<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>G\u00e1n t\u1ef1 \u0111\u1ed9ng<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>G\u00e1n t\u1ef1 \u0111\u1ed9ng<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>G\u00e1n t\u1ef1 \u0111\u1ed9ng<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>G\u00e1n t\u1ef1 \u0111\u1ed9ng<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>C\u00e1c c\u00e2n nh\u1eafc nhi\u1ec7t \u0111i\u1ec3n h\u00ecnh<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Th\u1ea5p<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Th\u1ea5p\u2013Trung b\u00ecnh<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>M\u00f4i tr\u01b0\u1eddng truy\u1ec1n d\u1eabn<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Cao<br><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>R\u1ea5t cao<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Nh\u1eefng \u0111i\u1ec3m ch\u00ednh c\u1ea7n l\u01b0u \u00fd:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>C\u00e1c m\u00f4-\u0111un SFP linh ho\u1ea1t nh\u1ea5t v\u00e0 \u00edt r\u1ee7i ro nh\u1ea5t \u0111\u1ed1i v\u1edbi vi\u1ec7c thay n\u00f3ng, do \u0111\u00f3 r\u1ea5t ph\u00f9 h\u1ee3p cho m\u00f4i tr\u01b0\u1eddng doanh nghi\u1ec7p v\u00e0 trung t\u00e2m d\u1eef li\u1ec7u.<\/p><\/li>\n\n\n\n<li><p><a href=\"https:\/\/www.l-p.com\/products\/491468.htm\" target=\"_self\">M\u00f4-\u0111un SFP+ \u0111\u1ed3ng<\/a> \u0111\u00f2i h\u1ecfi s\u1ef1 th\u1eadn tr\u1ecdng h\u01a1n do y\u00eau c\u1ea7u nhi\u1ec7t v\u00e0 \u0111i\u1ec7n n\u0103ng cao h\u01a1n.<\/p><\/li>\n\n\n\n<li><p>M\u00f4i tr\u01b0\u1eddng l\u01b0u tr\u1eef t\u1ed1c \u0111\u1ed9 cao <a href=\"https:\/\/www.l-p.com\/products\/491483.htm\" target=\"_self\">QSFP<\/a> \/ <a href=\"https:\/\/www.l-p.com\/products\/482616.htm\" target=\"_self\">QSFP28<br><\/a> c\u00f3 th\u1ec3 thay n\u00f3ng nh\u01b0ng th\u01b0\u1eddng y\u00eau c\u1ea7u l\u1eadp k\u1ebf ho\u1ea1ch k\u1ef9 l\u01b0\u1ee1ng xung quanh gi\u1edbi h\u1ea1n \u0111i\u1ec7n n\u0103ng v\u00e0 nhi\u1ec7t \u0111\u1ed9 trong c\u00e1c c\u00f4ng t\u1eafc m\u1eadt \u0111\u1ed9 cao.<\/p><\/li>\n\n\n\n<li><p>Vi\u1ec7c tu\u00e2n th\u1ee7 c\u00e1c th\u1ef1c ti\u1ec5n t\u1ed1t nh\u1ea5t (ki\u1ec3m tra c\u1ed5ng, l\u00e0m s\u1ea1ch \u0111\u1ea7u n\u1ed1i s\u1ee3i quang, gi\u00e1m s\u00e1t tr\u1ea1ng th\u00e1i li\u00ean k\u1ebft) \u00e1p d\u1ee5ng cho m\u1ecdi lo\u1ea1i m\u00f4-\u0111un nh\u1eb1m gi\u1ea3m thi\u1ec3u th\u1eddi gian ng\u1eebng ho\u1ea1t \u0111\u1ed9ng v\u00e0 \u0111\u1ea3m b\u1ea3o v\u1eadn h\u00e0nh \u0111\u00e1ng tin c\u1eady.<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">B\u1ea3ng so s\u00e1nh n\u00e0y l\u00e0m n\u1ed5i b\u1eadt l\u00fd do v\u00ec sao c\u00e1c m\u00f4-\u0111un quang SFP v\u1eabn l\u00e0 l\u1ef1a ch\u1ecdn ti\u00eau chu\u1ea9n cho c\u00e1c giao di\u1ec7n m\u1ea1ng m\u00f4-\u0111un v\u00e0 h\u1ed7 tr\u1ee3 thay n\u00f3ng trong c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng m\u1ea1ng hi\u1ec7n \u0111\u1ea1i.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c t\u00ecnh hu\u1ed1ng sau \u0111\u00e2y th\u01b0\u1eddng \u0111\u01b0\u1ee3c c\u00e1c k\u1ef9 s\u01b0 m\u1ea1ng n\u00eau ra nh\u01b0 nh\u1eefng tr\u01b0\u1eddng h\u1ee3p n\u00ean tr\u00e1nh thay n\u00f3ng ho\u1eb7c th\u1ef1c hi\u1ec7n thay n\u00f3ng v\u1edbi s\u1ef1 th\u1eadn tr\u1ecdng \u0111\u1eb7c bi\u1ec7t.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Trong giai \u0111o\u1ea1n l\u01b0u l\u01b0\u1ee3ng s\u1ea3n xu\u1ea5t quan tr\u1ecdng<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c thay n\u00f3ng m\u1ed9t m\u00f4-\u0111un quang lu\u00f4n khi\u1ebfn giao di\u1ec7n t\u01b0\u01a1ng \u1ee9ng t\u1ea1m th\u1eddi ng\u1eaft k\u1ebft n\u1ed1i. Khi m\u00f4-\u0111un SFP b\u1ecb th\u00e1o ra, li\u00ean k\u1ebft v\u1eadt l\u00fd s\u1ebd ng\u1eaft ngay l\u1eadp t\u1ee9c v\u00e0 l\u01b0u l\u01b0\u1ee3ng tr\u00ean c\u1ed5ng \u0111\u00f3 s\u1ebd d\u1eebng l\u1ea1i cho \u0111\u1ebfn khi m\u00f4-\u0111un thay th\u1ebf \u0111\u01b0\u1ee3c c\u00e0i \u0111\u1eb7t v\u00e0 li\u00ean k\u1ebft \u0111\u01b0\u1ee3c kh\u00f4i ph\u1ee5c.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Trong c\u00e1c m\u1ea1ng ph\u1ee5 thu\u1ed9c v\u00e0o m\u1ed9t k\u1ebft n\u1ed1i uplink ho\u1eb7c backbone duy nh\u1ea5t, \u0111i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 l\u00e0m gi\u00e1n \u0111o\u1ea1n c\u00e1c d\u1ecbch v\u1ee5 nh\u01b0:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>li\u00ean k\u1ebft trunk gi\u1eefa c\u00e1c c\u00f4ng t\u1eafc<\/p><\/li>\n\n\n\n<li><p>uplink trung t\u00e2m d\u1eef li\u1ec7u<\/p><\/li>\n\n\n\n<li><p>l\u01b0u l\u01b0\u1ee3ng l\u01b0u tr\u1eef ho\u1eb7c sao l\u01b0u<\/p><\/li>\n\n\n\n<li><p>k\u1ebft n\u1ed1i WAN<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Ngay c\u1ea3 trong c\u00e1c m\u1ea1ng c\u00f3 t\u00ednh d\u1ef1 ph\u00f2ng, vi\u1ec7c th\u00e1o m\u00f4-\u0111un c\u0169ng c\u00f3 th\u1ec3 k\u00edch ho\u1ea1t c\u00e1c s\u1ef1 ki\u1ec7n giao th\u1ee9c nh\u01b0:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>chuy\u1ec3n \u0111\u1ed5i failover nh\u00f3m li\u00ean k\u1ebft<\/p><\/li>\n\n\n\n<li><p>t\u00e1i h\u1ed9i t\u1ee5 c\u00e2y khung lan r\u1ed9ng (spanning tree)<\/p><\/li>\n\n\n\n<li><p>t\u00ednh to\u00e1n l\u1ea1i giao th\u1ee9c \u0111\u1ecbnh tuy\u1ebfn<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1eb7c d\u00f9 c\u00e1c s\u1ef1 ki\u1ec7n n\u00e0y th\u01b0\u1eddng ch\u1ec9 di\u1ec5n ra trong th\u1eddi gian ng\u1eafn, nh\u01b0ng vi\u1ec7c thay n\u00f3ng trong c\u00e1c giai \u0111o\u1ea1n s\u1ea3n xu\u1ea5t c\u00f3 l\u01b0u l\u01b0\u1ee3ng cao s\u1ebd l\u00e0m t\u0103ng kh\u1ea3 n\u0103ng x\u1ea3y ra gi\u00e1n \u0111o\u1ea1n d\u1ecbch v\u1ee5 t\u1ea1m th\u1eddi.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00ec l\u00fd do n\u00e0y, nhi\u1ec1u nh\u00e0 v\u1eadn h\u00e0nh m\u1ea1ng \u01b0u ti\u00ean thay th\u1ebf c\u00e1c m\u00f4-\u0111un b\u1ed9 thu ph\u00e1t quang trong c\u1eeda s\u1ed5 b\u1ea3o tr\u00ec ho\u1eb7c sau khi x\u00e1c nh\u1eadn r\u1eb1ng c\u00e1c \u0111\u01b0\u1eddng d\u1eabn d\u1ef1 ph\u00f2ng \u0111ang ho\u1ea1t \u0111\u1ed9ng.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Ph\u1ea7n m\u1ec1m\u56fa\u4ef6 kh\u00f4ng \u1ed5n \u0111\u1ecbnh ho\u1eb7c c\u00e1c m\u00f4-\u0111un kh\u00f4ng \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t t\u00ecnh hu\u1ed1ng kh\u00e1c m\u00e0 vi\u1ec7c thay n\u00f3ng c\u1ea7n \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n m\u1ed9t c\u00e1ch th\u1eadn tr\u1ecdng l\u00e0 khi ph\u1ea7n m\u1ec1m\u56fa\u4ef6 c\u1ee7a c\u00f4ng t\u1eafc ho\u1eb7c kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch c\u1ee7a m\u00f4-\u0111un ch\u01b0a r\u00f5 r\u00e0ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">H\u1ea7u h\u1ebft c\u00e1c c\u00f4ng t\u1eafc t\u1ef1 \u0111\u1ed9ng \u0111\u1ecdc d\u1eef li\u1ec7u nh\u1eadn d\u1ea1ng t\u1eeb m\u00f4-\u0111un quang SFP khi m\u00f4-\u0111un \u0111\u01b0\u1ee3c c\u1eafm v\u00e0o. N\u1ebfu m\u00f4-\u0111un kh\u00f4ng \u0111\u01b0\u1ee3c nh\u1eadn d\u1ea1ng ho\u1eb7c kh\u00f4ng v\u01b0\u1ee3t qua c\u00e1c ki\u1ec3m tra x\u00e1c th\u1ef1c c\u1ee7a nh\u00e0 cung c\u1ea5p, c\u00f4ng t\u1eafc c\u00f3 th\u1ec3:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>v\u00f4 hi\u1ec7u h\u00f3a giao di\u1ec7n<\/p><\/li>\n\n\n\n<li><p>hi\u1ec3n th\u1ecb c\u1ea3nh b\u00e1o v\u1ec1 t\u00ednh t\u01b0\u01a1ng th\u00edch<\/p><\/li>\n\n\n\n<li><p>ng\u0103n ch\u1eb7n li\u00ean k\u1ebft kh\u1edfi t\u1ea1o<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Trong m\u1ed9t s\u1ed1 tr\u01b0\u1eddng h\u1ee3p hi\u1ebfm g\u1eb7p, c\u00e1c k\u1ef9 s\u01b0 m\u1ea1ng \u0111\u00e3 b\u00e1o c\u00e1o c\u00e1c h\u00e0nh vi b\u1ea5t th\u01b0\u1eddng sau khi c\u1eafm c\u00e1c m\u00f4-\u0111un kh\u00f4ng \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3, ch\u1eb3ng h\u1ea1n nh\u01b0 vi\u1ec7c \u0111\u1eb7t l\u1ea1i c\u1ed5ng l\u1eb7p \u0111i l\u1eb7p l\u1ea1i ho\u1eb7c l\u1ed7i giao di\u1ec7n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c s\u1eed d\u1ee5ng c\u00e1c m\u00f4-\u0111un b\u1ed9 thu ph\u00e1t quang \u0111\u01b0\u1ee3c m\u00e3 h\u00f3a \u0111\u00fang c\u00e1ch v\u00e0 t\u01b0\u01a1ng th\u00edch s\u1ebd l\u00e0m gi\u1ea3m r\u1ee7i ro ph\u00e1t sinh c\u00e1c v\u1ea5n \u0111\u1ec1 n\u00e0y. C\u00e1c b\u1ea3n c\u1eadp nh\u1eadt ph\u1ea7n m\u1ec1m\u56fa\u4ef6 t\u1eeb nh\u00e0 cung c\u1ea5p c\u00f4ng t\u1eafc c\u0169ng c\u00f3 th\u1ec3 c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch v\u1edbi c\u00e1c m\u00f4-\u0111un SFP+ quang m\u1edbi h\u01a1n ho\u1eb7c <a target=\"\" rel=\"\" href=\"https:\/\/www.l-p.com\/products\/482435.htm\">b\u1ed9 thu ph\u00e1t c\u1ee7a b\u00ean th\u1ee9 ba<\/a>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Khi kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch ch\u01b0a ch\u1eafc ch\u1eafn, c\u00e1c qu\u1ea3n tr\u1ecb vi\u00ean th\u01b0\u1eddng th\u1eed nghi\u1ec7m m\u00f4-\u0111un tr\u00ean m\u1ed9t c\u1ed5ng kh\u00f4ng quan tr\u1ecdng tr\u01b0\u1edbc khi c\u1eafm v\u00e0o uplink s\u1ea3n xu\u1ea5t.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Khi s\u1eed d\u1ee5ng c\u00e1c m\u00f4-\u0111un SFP \u0111\u1ed3ng c\u00f4ng su\u1ea5t cao<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c thay n\u00f3ng c\u0169ng c\u1ea7n \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n m\u1ed9t c\u00e1ch th\u1eadn tr\u1ecdng khi l\u00e0m vi\u1ec7c v\u1edbi c\u00e1c m\u00f4-\u0111un SFP \u0111\u1ed3ng, \u0111\u1eb7c bi\u1ec7t l\u00e0 lo\u1ea1i 10GBASE-T.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Kh\u00e1c v\u1edbi c\u00e1c m\u00f4-\u0111un quang d\u1ef1a tr\u00ean s\u1ee3i quang, c\u00e1c m\u00f4-\u0111un SFP \u0111\u1ed3ng t\u00edch h\u1ee3p s\u1eb5n <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/what-is-phy-physical-layer-basics-explained\/\">PHY Ethernet<\/a> v\u00e0 th\u01b0\u1eddng ti\u00eau th\u1ee5 nhi\u1ec1u \u0111i\u1ec7n n\u0103ng h\u01a1n. \u0110i\u1ec1u n\u00e0y d\u1eabn \u0111\u1ebfn:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>nhi\u1ec7t \u0111\u1ed9 ho\u1ea1t \u0111\u1ed9ng cao h\u01a1n<\/p><\/li>\n\n\n\n<li><p>m\u1ee9c ti\u00eau th\u1ee5 \u0111i\u1ec7n n\u0103ng t\u0103ng cao t\u1eeb c\u1ed5ng SFP<\/p><\/li>\n\n\n\n<li><p>t\u1ea3i nhi\u1ec7t l\u1edbn h\u01a1n b\u00ean trong c\u00f4ng t\u1eafc<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t s\u1ed1 c\u00f4ng t\u1eafc gi\u1edbi h\u1ea1n s\u1ed1 l\u01b0\u1ee3ng m\u00f4-\u0111un SFP+ \u0111\u1ed3ng c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng \u0111\u1ed3ng th\u1eddi do c\u00e1c y\u00eau c\u1ea7u v\u1ec1 \u0111i\u1ec7n n\u0103ng v\u00e0 l\u00e0m m\u00e1t n\u00e0y.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c k\u1ef9 s\u01b0 m\u1ea1ng th\u01b0\u1eddng b\u00e1o c\u00e1o r\u1eb1ng c\u00e1c m\u00f4-\u0111un SFP \u0111\u1ed3ng ho\u1ea1t \u0111\u1ed9ng n\u00f3ng r\u00f5 r\u1ec7t h\u01a1n so v\u1edbi c\u00e1c b\u1ed9 thu ph\u00e1t quang, v\u00e0 vi\u1ec7c c\u1eafm nhi\u1ec1u m\u00f4-\u0111un v\u00e0o m\u1ed9t c\u00f4ng t\u1eafc nh\u1ecf \u0111\u00f4i khi c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh nhi\u1ec7t.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Do nh\u1eefng \u0111\u1eb7c \u0111i\u1ec3m n\u00e0y, c\u00e1c qu\u1ea3n tr\u1ecb vi\u00ean c\u00f3 th\u1ec3 \u01b0u ti\u00ean:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>c\u1eafm c\u00e1c m\u00f4-\u0111un \u0111\u1ed3ng trong \u0111\u1ee3t b\u1ea3o tr\u00ec \u0111\u00e3 l\u00ean k\u1ebf ho\u1ea1ch<\/p><\/li>\n\n\n\n<li><p>x\u00e1c minh th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt \u0111i\u1ec7n n\u0103ng c\u1ee7a c\u00f4ng t\u1eafc<\/p><\/li>\n\n\n\n<li><p>gi\u00e1m s\u00e1t nhi\u1ec7t \u0111\u1ed9 m\u00f4-\u0111un sau khi c\u00e0i \u0111\u1eb7t<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Khuy\u1ebfn ngh\u1ecb v\u1eadn h\u00e0nh<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1eb7c d\u00f9 c\u00e1c m\u00f4-\u0111un quang SFP \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 h\u1ed7 tr\u1ee3 thay th\u1ebf n\u00f3ng, vi\u1ec7c tr\u00e1nh thay th\u1ebf n\u00f3ng trong m\u1ed9t s\u1ed1 t\u00ecnh hu\u1ed1ng nh\u1ea5t \u0111\u1ecbnh c\u00f3 th\u1ec3 gi\u1ea3m r\u1ee7i ro v\u1eadn h\u00e0nh.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">N\u00f3i chung, k\u1ef9 s\u01b0 c\u1ea7n th\u1eadn tr\u1ecdng khi:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>c\u1ed5ng \u0111ang truy\u1ec1n t\u1ea3i l\u01b0u l\u01b0\u1ee3ng s\u1ea3n xu\u1ea5t quan tr\u1ecdng<\/p><\/li>\n\n\n\n<li><p>t\u00ednh t\u01b0\u01a1ng th\u00edch c\u1ee7a m\u00f4-\u0111un ho\u1eb7c \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh firmware ch\u01b0a ch\u1eafc ch\u1eafn<\/p><\/li>\n\n\n\n<li><p>l\u1eafp \u0111\u1eb7t c\u00e1c m\u00f4-\u0111un SFP RJ45 c\u00f4ng su\u1ea5t cao<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u00e1nh gi\u00e1 c\u00e1c y\u1ebfu t\u1ed1 n\u00e0y tr\u01b0\u1edbc khi thay th\u1ebf m\u00f4-\u0111un b\u1ed9 thu ph\u00e1t quang gi\u00fap \u0111\u1ea3m b\u1ea3o vi\u1ec7c b\u1ea3o tr\u00ec m\u1ea1ng \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n m\u1ed9t c\u00e1ch an to\u00e0n m\u00e0 kh\u00f4ng g\u00e2y gi\u00e1n \u0111o\u1ea1n d\u1ecbch v\u1ee5 ngo\u00e0i \u00fd mu\u1ed1n.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u2747\ufe0f C\u00e1c c\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p v\u1ec1 c\u00e1c m\u00f4-\u0111un SFP h\u1ed7 tr\u1ee3 thay th\u1ebf n\u00f3ng<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c c\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p d\u01b0\u1edbi \u0111\u00e2y gi\u1ea3i \u0111\u00e1p nh\u1eefng lo ng\u1ea1i ph\u1ed5 bi\u1ebfn m\u00e0 k\u1ef9 s\u01b0 v\u00e0 qu\u1ea3n tr\u1ecb vi\u00ean m\u1ea1ng th\u01b0\u1eddng g\u1eb7p khi l\u00e0m vi\u1ec7c v\u1edbi c\u00e1c m\u00f4-\u0111un b\u1ed9 thu ph\u00e1t trong m\u00f4i tr\u01b0\u1eddng m\u1ea1ng \u0111ang ho\u1ea1t \u0111\u1ed9ng.<\/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\/bca46eb153d148c98ab8aae22113848b.jpg\" alt=\"FAQs About SFP Hot-Swappable Modules\" class=\"wp-image-3062\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/bca46eb153d148c98ab8aae22113848b.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/bca46eb153d148c98ab8aae22113848b-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/bca46eb153d148c98ab8aae22113848b-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/bca46eb153d148c98ab8aae22113848b-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/bca46eb153d148c98ab8aae22113848b-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Li\u1ec7u t\u1ea5t c\u1ea3 c\u00e1c m\u00f4-\u0111un SFP \u0111\u1ec1u h\u1ed7 tr\u1ee3 thay th\u1ebf n\u00f3ng?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Ph\u1ea7n l\u1edbn c\u00e1c m\u00f4-\u0111un quang SFP \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 h\u1ed7 tr\u1ee3 thay th\u1ebf n\u00f3ng theo Th\u1ecfa thu\u1eadn \u0110a ngu\u1ed3n (MSA) d\u00e0nh ri\u00eang cho SFP. \u0110i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 ch\u00fang th\u01b0\u1eddng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c c\u1eafm v\u00e0o ho\u1eb7c th\u00e1o ra trong khi c\u00f4ng t\u1eafc ho\u1eb7c b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn v\u1eabn \u0111ang \u0111\u01b0\u1ee3c c\u1ea5p \u0111i\u1ec7n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Tuy nhi\u00ean, kh\u1ea3 n\u0103ng thay th\u1ebf n\u00f3ng c\u1ee7a m\u1ed9t m\u00f4-\u0111un cu\u1ed1i c\u00f9ng ph\u1ee5 thu\u1ed9c v\u00e0o thi\u1ebft b\u1ecb m\u1ea1ng ch\u1ee9a c\u1ed5ng SFP. C\u00e1c c\u00f4ng t\u1eafc doanh nghi\u1ec7p hi\u1ec7n \u0111\u1ea1i th\u01b0\u1eddng h\u1ed7 tr\u1ee3 c\u00e1c m\u00f4-\u0111un b\u1ed9 thu ph\u00e1t quang h\u1ed7 tr\u1ee3 thay th\u1ebf n\u00f3ng, nh\u01b0ng m\u1ed9t s\u1ed1 thi\u1ebft b\u1ecb c\u0169 ho\u1eb7c n\u1ec1n t\u1ea3ng ph\u1ea7n c\u1ee9ng chuy\u00ean d\u1ee5ng c\u00f3 th\u1ec3 y\u00eau c\u1ea7u v\u00f4 hi\u1ec7u h\u00f3a giao di\u1ec7n tr\u01b0\u1edbc ti\u00ean.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ec3 \u0111\u1ea3m b\u1ea3o v\u1eadn h\u00e0nh an to\u00e0n, lu\u00f4n x\u00e1c minh t\u00e0i li\u1ec7u ph\u1ea7n c\u1ee9ng d\u00e0nh ri\u00eang cho m\u1eabu c\u00f4ng t\u1eafc c\u1ee5 th\u1ec3 tr\u01b0\u1edbc khi thay th\u1ebf m\u00f4-\u0111un SFP.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Vi\u1ec7c th\u00e1o m\u1ed9t m\u00f4-\u0111un SFP c\u00f3 th\u1ec3 l\u00e0m h\u1ecfng c\u00f4ng t\u1eafc kh\u00f4ng?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Trong \u0111i\u1ec1u ki\u1ec7n b\u00ecnh th\u01b0\u1eddng, vi\u1ec7c th\u00e1o m\u00f4-\u0111un quang SFP kh\u1ecfi m\u1ed9t c\u00f4ng t\u1eafc \u0111ang \u0111\u01b0\u1ee3c c\u1ea5p \u0111i\u1ec7n s\u1ebd kh\u00f4ng l\u00e0m h\u1ecfng thi\u1ebft b\u1ecb v\u00ec giao di\u1ec7n \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 h\u1ed7 tr\u1ee3 thay th\u1ebf n\u00f3ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Tuy nhi\u00ean, h\u01b0 h\u1ecfng c\u00f3 th\u1ec3 x\u1ea3y ra trong m\u1ed9t s\u1ed1 t\u00ecnh hu\u1ed1ng hi\u1ebfm g\u1eb7p nh\u01b0:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>ph\u00f3ng \u0111i\u1ec7n t\u0129nh (ESD) trong qu\u00e1 tr\u00ecnh x\u1eed l\u00fd<\/p><\/li>\n\n\n\n<li><p>c\u1ed1 g\u1eafng th\u00e1o m\u00f4-\u0111un sai c\u00e1ch<\/p><\/li>\n\n\n\n<li><p>c\u1eafm c\u00e1c m\u00f4-\u0111un b\u1ed9 thu ph\u00e1t quang kh\u00f4ng t\u01b0\u01a1ng th\u00edch ho\u1eb7c l\u1ed7i<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Tu\u00e2n th\u1ee7 \u0111\u00fang quy tr\u00ecnh x\u1eed l\u00fd v\u00e0 s\u1eed d\u1ee5ng c\u00e1c m\u00f4-\u0111un SFP t\u01b0\u01a1ng th\u00edch s\u1ebd gi\u00fap ng\u0103n ng\u1eeba nh\u1eefng s\u1ef1 c\u1ed1 n\u00e0y.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">T\u00f4i c\u00f3 c\u1ea7n kh\u1edfi \u0111\u1ed9ng l\u1ea1i sau khi c\u00e0i \u0111\u1eb7t m\u00f4-\u0111un SFP kh\u00f4ng?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Trong h\u1ea7u h\u1ebft c\u00e1c tr\u01b0\u1eddng h\u1ee3p, <strong>kh\u00f4ng c\u1ea7n kh\u1edfi \u0111\u1ed9ng l\u1ea1i<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Khi c\u1eafm m\u1ed9t m\u00f4-\u0111un SFP m\u1edbi, c\u00f4ng t\u1eafc t\u1ef1 \u0111\u1ed9ng ph\u00e1t hi\u1ec7n b\u1ed9 thu ph\u00e1t, \u0111\u1ecdc th\u00f4ng tin nh\u1eadn d\u1ea1ng \u0111\u01b0\u1ee3c l\u01b0u trong EEPROM c\u1ee7a n\u00f3 v\u00e0 kh\u1edfi t\u1ea1o giao di\u1ec7n. Li\u00ean k\u1ebft th\u01b0\u1eddng tr\u1edf n\u00ean ho\u1ea1t \u0111\u1ed9ng trong v\u00f2ng v\u00e0i gi\u00e2y sau khi c\u00e1p quang ho\u1eb7c c\u00e1p Ethernet \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Tuy nhi\u00ean, n\u1ebfu firmware c\u00f4ng t\u1eafc kh\u00f4ng nh\u1eadn ra m\u00f4-\u0111un ho\u1eb7c ki\u1ec3m tra t\u00ednh t\u01b0\u01a1ng th\u00edch th\u1ea5t b\u1ea1i, qu\u1ea3n tr\u1ecb vi\u00ean c\u00f3 th\u1ec3 c\u1ea7n x\u00e1c minh c\u00e1c thi\u1ebft l\u1eadp c\u1ea5u h\u00ecnh ho\u1eb7c c\u1eadp nh\u1eadt firmware tr\u01b0\u1edbc khi m\u00f4-\u0111un quang ho\u1ea1t \u0111\u1ed9ng \u0111\u00fang c\u00e1ch.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">C\u00e1c m\u00f4-\u0111un SFP \u0111\u1ed3ng c\u00f3 h\u1ed7 tr\u1ee3 thay th\u1ebf n\u00f3ng kh\u00f4ng?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00f3, ph\u1ea7n l\u1edbn c\u00e1c m\u00f4-\u0111un SFP \u0111\u1ed3ng RJ45 c\u0169ng \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 h\u1ed7 tr\u1ee3 thay th\u1ebf n\u00f3ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Tuy nhi\u00ean, c\u00e1c m\u00f4-\u0111un \u0111\u1ed3ng ho\u1ea1t \u0111\u1ed9ng kh\u00e1c bi\u1ec7t so v\u1edbi c\u00e1c m\u00f4-\u0111un quang do ch\u00fang t\u00edch h\u1ee3p s\u1eb5n PHY Ethernet v\u00e0 th\u01b0\u1eddng ti\u00eau th\u1ee5 nhi\u1ec1u \u0111i\u1ec7n n\u0103ng h\u01a1n. V\u00ec v\u1eady, ch\u00fang c\u00f3 th\u1ec3 n\u00f3ng h\u01a1n v\u00e0 ti\u00eau th\u1ee5 nhi\u1ec1u \u0111i\u1ec7n n\u0103ng h\u01a1n t\u1eeb c\u1ed5ng c\u00f4ng t\u1eafc.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00ec l\u00fd do n\u00e0y, qu\u1ea3n tr\u1ecb vi\u00ean \u0111\u00f4i khi x\u00e1c minh th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt \u0111i\u1ec7n n\u0103ng c\u1ee7a c\u00f4ng t\u1eafc tr\u01b0\u1edbc khi l\u1eafp \u0111\u1eb7t nhi\u1ec1u m\u00f4-\u0111un SFP \u0111\u1ed3ng tr\u00ean c\u00f9ng m\u1ed9t thi\u1ebft b\u1ecb.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">T\u1ea1i sao m\u1ed9t c\u1ed5ng l\u1ea1i xu\u1ed1ng (down) sau khi c\u1eafm m\u00f4-\u0111un SFP?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c thay \u0111\u1ed5i tr\u1ea1ng th\u00e1i c\u1ed5ng t\u1ea1m th\u1eddi l\u00e0 hi\u1ec7n t\u01b0\u1ee3ng b\u00ecnh th\u01b0\u1eddng khi l\u1eafp \u0111\u1eb7t m\u00f4-\u0111un b\u1ed9 thu ph\u00e1t quang SFP.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Khi m\u00f4-\u0111un \u0111\u01b0\u1ee3c c\u1eafm v\u00e0o, c\u00f4ng t\u1eafc ph\u1ea3i th\u1ef1c hi\u1ec7n m\u1ed9t s\u1ed1 b\u01b0\u1edbc tr\u01b0\u1edbc khi giao di\u1ec7n tr\u1edf n\u00ean ho\u1ea1t \u0111\u1ed9ng:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><p>Ph\u00e1t hi\u1ec7n m\u00f4-\u0111un b\u1ed9 thu ph\u00e1t quang m\u1edbi trong khe c\u1eafm SFP<\/p><\/li>\n\n\n\n<li><p>\u0110\u1ecdc d\u1eef li\u1ec7u nh\u1eadn d\u1ea1ng m\u00f4-\u0111un \u0111\u01b0\u1ee3c l\u01b0u trong EEPROM<\/p><\/li>\n\n\n\n<li><p>C\u1ea5u h\u00ecnh t\u1ed1c \u0111\u1ed9 giao di\u1ec7n v\u00e0 c\u00e1c tham s\u1ed1 t\u00edn hi\u1ec7u<\/p><\/li>\n\n\n\n<li><p>Thi\u1ebft l\u1eadp th\u01b0\u01a1ng l\u01b0\u1ee3ng li\u00ean k\u1ebft v\u1edbi thi\u1ebft b\u1ecb \u1edf \u0111\u1ea7u xa<\/p><\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">Trong qu\u00e1 tr\u00ecnh kh\u1edfi t\u1ea1o n\u00e0y, c\u1ed5ng c\u00f3 th\u1ec3 t\u1ea1m th\u1eddi hi\u1ec3n th\u1ecb \u1edf tr\u1ea1ng th\u00e1i <strong>li\u00ean k\u1ebft xu\u1ed1ng (link-down)<\/strong> cho \u0111\u1ebfn khi k\u1ebft n\u1ed1i \u0111\u01b0\u1ee3c thi\u1ebft l\u1eadp \u0111\u1ea7y \u0111\u1ee7. Trong h\u1ea7u h\u1ebft c\u00e1c m\u1ea1ng, li\u00ean k\u1ebft tr\u1edf n\u00ean ho\u1ea1t \u0111\u1ed9ng trong v\u00f2ng v\u00e0i gi\u00e2y.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u2747\ufe0f K\u1ebft lu\u1eadn: Hi\u1ec3u r\u00f5 vi\u1ec7c thay th\u1ebf n\u00f3ng SFP an to\u00e0n trong c\u00e1c m\u1ea1ng hi\u1ec7n \u0111\u1ea1i<\/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\/ced2c391a42747b0a6db2bdde83f83ec.jpg\" alt=\"Understanding Safe SFP Hot Swapping in Modern Networks\" class=\"wp-image-3063\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/ced2c391a42747b0a6db2bdde83f83ec.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/ced2c391a42747b0a6db2bdde83f83ec-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/ced2c391a42747b0a6db2bdde83f83ec-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/ced2c391a42747b0a6db2bdde83f83ec-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/ced2c391a42747b0a6db2bdde83f83ec-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/482487.htm\">C\u00e1c b\u1ed9 thu ph\u00e1t d\u1ea1ng module c\u1eafm r\u1eddi<\/a> \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf c\u01a1 b\u1ea3n \u0111\u1ec3 h\u1ed7 tr\u1ee3 thay th\u1ebf n\u00f3ng, cho ph\u00e9p k\u1ef9 s\u01b0 m\u1ea1ng c\u1eafm ho\u1eb7c th\u00e1o ch\u00fang m\u00e0 kh\u00f4ng c\u1ea7n t\u1eaft ngu\u1ed3n c\u00f4ng t\u1eafc ho\u1eb7c b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn. T\u00ednh n\u0103ng n\u00e0y r\u1ea5t quan tr\u1ecdng trong c\u00e1c m\u1ea1ng hi\u1ec7n \u0111\u1ea1i, n\u01a1i th\u1eddi gian ho\u1ea1t \u0111\u1ed9ng, d\u1ef1 ph\u00f2ng v\u00e0 n\u00e2ng c\u1ea5p linh ho\u1ea1t l\u00e0 y\u1ebfu t\u1ed1 then ch\u1ed1t.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Tuy nhi\u00ean, vi\u1ec7c x\u1eed l\u00fd an to\u00e0n v\u00e0 t\u00ednh t\u01b0\u01a1ng th\u00edch v\u1eabn r\u1ea5t quan tr\u1ecdng. Vi\u1ec7c l\u1eafp \u0111\u1eb7t sai c\u00e1ch, ph\u00f3ng \u0111i\u1ec7n t\u0129nh (ESD) ho\u1eb7c s\u1eed d\u1ee5ng c\u00e1c m\u00f4-\u0111un b\u00ean th\u1ee9 ba kh\u00f4ng \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3 c\u00f3 th\u1ec3 g\u00e2y ra l\u1ed7i giao di\u1ec7n, m\u1ea5t \u1ed5n \u0111\u1ecbnh li\u00ean k\u1ebft ho\u1eb7c th\u1eadm ch\u00ed l\u00e0m h\u1ecfng ph\u1ea7n c\u1ee9ng. C\u00e1c m\u00f4-\u0111un SFP \u0111\u1ed3ng RJ45 c\u0169ng \u0111\u00f2i h\u1ecfi s\u1ef1 th\u1eadn tr\u1ecdng \u0111\u1eb7c bi\u1ec7t do m\u1ee9c ti\u00eau th\u1ee5 \u0111i\u1ec7n n\u0103ng v\u00e0 nhi\u1ec7t l\u01b0\u1ee3ng sinh ra cao h\u01a1n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">B\u1eb1ng c\u00e1ch tu\u00e2n th\u1ee7 c\u00e1c th\u1ef1c ti\u1ec5n t\u1ed1t nh\u1ea5t c\u00f3 c\u1ea5u tr\u00fac \u0111\u1ed1i v\u1edbi vi\u1ec7c thay th\u1ebf n\u00f3ng SFP\u2014ch\u1eb3ng h\u1ea1n nh\u01b0 l\u00e0m s\u1ea1ch c\u00e1c \u0111\u1ea7u n\u1ed1i quang, x\u00e1c minh tr\u1ea1ng th\u00e1i li\u00ean k\u1ebft v\u00e0 t\u00f9y ch\u1ecdn v\u00f4 hi\u1ec7u h\u00f3a c\u1ed5ng trong qu\u00e1 tr\u00ecnh thay th\u1ebf\u2014qu\u1ea3n tr\u1ecb vi\u00ean m\u1ea1ng c\u00f3 th\u1ec3 duy tr\u00ec ho\u1ea1t \u0111\u1ed9ng \u0111\u00e1ng tin c\u1eady trong khi th\u1ef1c hi\u1ec7n b\u1ea3o tr\u00ec ho\u1eb7c n\u00e2ng c\u1ea5p. Nh\u1eefng bi\u1ec7n ph\u00e1p n\u00e0y gi\u00fap t\u1ed1i thi\u1ec3u h\u00f3a th\u1eddi gian ng\u1eebng ho\u1ea1t \u0111\u1ed9ng v\u00e0 gi\u1ea3m nguy c\u01a1 ph\u00e1t sinh s\u1ef1 c\u1ed1 m\u1ea1ng ngo\u00e0i \u00fd mu\u1ed1n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed1i v\u1edbi c\u00e1c k\u1ef9 s\u01b0 t\u00ecm ki\u1ebfm c\u00e1c m\u00f4-\u0111un SFP \u0111\u00e1ng tin c\u1eady v\u00e0 t\u01b0\u01a1ng th\u00edch, h\u00e3y c\u00e2n nh\u1eafc kh\u00e1m ph\u00e1 c\u00e1c m\u00f4-\u0111un quang ch\u1ea5t l\u01b0\u1ee3ng cao t\u1eeb <a target=\"_new\" rel=\"noopener\" class=\"decorated-link\" href=\"https:\/\/www.link-pp.com\/\"><strong>C\u1eeda h\u00e0ng Ch\u00ednh th\u1ee9c LINK-PP<\/strong><\/a>. B\u1ed9 s\u01b0u t\u1eadp c\u00e1c m\u00f4-\u0111un SFP, SFP+ v\u00e0 SFP28 c\u1ee7a h\u1ecd \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf k\u1ef9 l\u01b0\u1ee1ng nh\u1eb1m \u0111\u1ea3m b\u1ea3o ho\u1ea1t \u0111\u1ed9ng \u1ed5n \u0111\u1ecbnh khi thay th\u1ebf n\u00f3ng trong c\u00e1c m\u1ea1ng doanh nghi\u1ec7p v\u00e0 trung t\u00e2m d\u1eef li\u1ec7u, g\u00f3p ph\u1ea7n duy tr\u00ec k\u1ebft n\u1ed1i li\u00ean t\u1ee5c \u0111\u1ed3ng th\u1eddi \u0111\u01a1n gi\u1ea3n h\u00f3a vi\u1ec7c qu\u1ea3n l\u00fd ph\u1ea7n c\u1ee9ng.<\/p>","protected":false},"excerpt":{"rendered":"<p>C\u00e1c m\u00f4-\u0111un SFP c\u00f3 h\u1ed7 tr\u1ee3 thay th\u1ebf n\u00f3ng kh\u00f4ng? T\u00ecm hi\u1ec3u c\u00e1ch thay th\u1ebf n\u00f3ng SFP ho\u1ea1t \u0111\u1ed9ng, th\u1eddi \u0111i\u1ec3m n\u00e0o l\u00e0 an to\u00e0n, c\u00e1c r\u1ee7i ro m\u00e0 k\u1ef9 s\u01b0 th\u1ea3o lu\u1eadn tr\u00ean c\u00e1c di\u1ec5n \u0111\u00e0n, c\u0169ng nh\u01b0 c\u00e1c th\u1ef1c h\u00e0nh t\u1ed1t nh\u1ea5t d\u00e0nh cho b\u1ed9 chuy\u1ec3n m\u1ea1ch v\u00e0 b\u1ed9 thu ph\u00e1t.<\/p>","protected":false},"author":1,"featured_media":3064,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[15,26],"class_list":["post-3065","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-knowledge-center","tag-link-pp-1g-sfp-modules","tag-optics-transceivers"],"blocksy_meta":[],"acf":[],"_links":{"self":[{"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/3065","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=3065"}],"version-history":[{"count":4,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/3065\/revisions"}],"predecessor-version":[{"id":10751,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/3065\/revisions\/10751"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/media\/3064"}],"wp:attachment":[{"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/media?parent=3065"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/categories?post=3065"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/tags?post=3065"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}