{"id":2888,"date":"2026-03-24T00:00:00","date_gmt":"2026-03-24T00:00:00","guid":{"rendered":"https:\/\/lp.szlogic.cn\/products\/small-form-factor-pluggable-plus-guide\/"},"modified":"2026-06-22T03:49:08","modified_gmt":"2026-06-22T03:49:08","slug":"small-form-factor-pluggable-plus-guide","status":"publish","type":"post","link":"https:\/\/resourceslp.szlogic.cn\/vi\/products\/small-form-factor-pluggable-plus-guide","title":{"rendered":"H\u01b0\u1edbng d\u1eabn T\u01b0\u01a1ng th\u00edch Small Form-factor Pluggable Plus SFP+"},"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\/ba3583dd1bfd4fcfb2ea8066b8c069e5-1024x536.jpg\" alt=\"Small Form-factor Pluggable Plus SFP+ Compatibility Guide\" class=\"wp-image-2879\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/ba3583dd1bfd4fcfb2ea8066b8c069e5-1024x536.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/ba3583dd1bfd4fcfb2ea8066b8c069e5-300x157.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/ba3583dd1bfd4fcfb2ea8066b8c069e5-768x402.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/ba3583dd1bfd4fcfb2ea8066b8c069e5-18x9.jpg 18w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/ba3583dd1bfd4fcfb2ea8066b8c069e5.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,<br>, <a target=\"_self\" href=\"https:\/\/www.l-p.com\/store-26192-10g-sfp.htm\">B\u1ed9 thu ph\u00e1t nh\u1ecf d\u1ea1ng c\u1eafm r\u1eddi Plus<br><\/a> (SFP+) \u0111\u00e3 tr\u1edf th\u00e0nh giao di\u1ec7n ti\u00eau chu\u1ea9n \u0111\u1ec3 cung c\u1ea5p k\u1ebft n\u1ed1i Ethernet 10 Gigabit (10GbE) tr\u00ean c\u00e1c b\u1ed9 chuy\u1ec3n m\u1ea1ch, b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn v\u00e0 m\u00e1y ch\u1ee7. Thi\u1ebft k\u1ebf nh\u1ecf g\u1ecdn c\u1ee7a n\u00f3,<br>, <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/the-hot-pluggable-nature-of-optical-modules\/\">thi\u1ebft k\u1ebf c\u1eafm n\u00f3ng<\/a> cho ph\u00e9p k\u1ef9 s\u01b0 m\u1edf r\u1ed9ng b\u0103ng th\u00f4ng, chuy\u1ec3n \u0111\u1ed5i gi\u1eefa c\u00e1c lo\u1ea1i ph\u01b0\u01a1ng ti\u1ec7n truy\u1ec1n d\u1eabn v\u00e0 n\u00e2ng c\u1ea5p m\u1ea1ng m\u00e0 kh\u00f4ng c\u1ea7n thay th\u1ebf ph\u1ea7n c\u1ee9ng l\u00f5i.<br>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Tuy nhi\u00ean, d\u00f9 \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng r\u1ed9ng r\u00e3i, SFP+ c\u0169ng l\u00e0 m\u1ed9t trong nh\u1eefng th\u00e0nh ph\u1ea7n d\u1ec5 b\u1ecb hi\u1ec3u sai nh\u1ea5t trong l\u0129nh v\u1ef1c m\u1ea1ng.<br>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Nhi\u1ec1u ng\u01b0\u1eddi d\u00f9ng gi\u1ea3 \u0111\u1ecbnh r\u1eb1ng n\u1ebfu m\u1ed9t module v\u1eeba kh\u00edt v\u1ec1 m\u1eb7t v\u1eadt l\u00fd v\u00e0o c\u1ed5ng SFP+, th\u00ec n\u00f3 s\u1ebd t\u1ef1 \u0111\u1ed9ng ho\u1ea1t \u0111\u1ed9ng. Tr\u00ean th\u1ef1c t\u1ebf, kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch ph\u1ee5 thu\u1ed9c v\u00e0o s\u1ef1 k\u1ebft h\u1ee3p c\u1ee7a nhi\u1ec1u y\u1ebfu t\u1ed1: h\u1ed7 tr\u1ee3 ph\u1ea7n c\u1ee9ng, h\u1ea1n ch\u1ebf firmware, m\u00e3 h\u00f3a nh\u00e0 s\u1ea3n xu\u1ea5t v\u00e0 l\u1ef1a ch\u1ecdn lo\u1ea1i ph\u01b0\u01a1ng ti\u1ec7n truy\u1ec1n d\u1eabn. \u0110\u00e2y l\u00e0 l\u00fd do v\u00ec sao c\u00e1c v\u1ea5n \u0111\u1ec1 nh\u01b0<br> <em>\u201cSFP+ kh\u00f4ng ho\u1ea1t \u0111\u1ed9ng\u201d, \u201ckh\u00f4ng c\u00f3 \u0111\u00e8n b\u00e1o li\u00ean k\u1ebft\u201d,<br>\u201d<\/em> or <em>\u201cmodule kh\u00f4ng \u0111\u01b0\u1ee3c nh\u1eadn di\u1ec7n\u201d<br>\u201d<\/em> n\u1eb1m trong s\u1ed1 c\u00e1c ch\u1ee7 \u0111\u1ec1 \u0111\u01b0\u1ee3c t\u00ecm ki\u1ebfm v\u00e0 th\u1ea3o lu\u1eadn nhi\u1ec1u nh\u1ea5t.<br>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Nh\u1eefng n\u1ed9i dung b\u1ea1n s\u1ebd t\u00ecm hi\u1ec3u trong h\u01b0\u1edbng d\u1eabn n\u00e0y<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ec3 gi\u00fap b\u1ea1n tr\u00e1nh nh\u1eefng sai l\u1ea7m t\u1ed1n k\u00e9m v\u00e0 th\u1ea5t b\u1ea1i khi tri\u1ec3n khai, h\u01b0\u1edbng d\u1eabn n\u00e0y t\u1eadp trung v\u00e0o kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch trong th\u1ef1c t\u1ebf, ch\u1ee9 kh\u00f4ng ch\u1ec9 d\u1ef1a tr\u00ean th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt. B\u1eb1ng c\u00e1ch \u0111\u1ecdc b\u00e0i vi\u1ebft n\u00e0y, b\u1ea1n s\u1ebd:<br><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Hi\u1ec3u r\u00f5 SFP+ th\u1ef1c ch\u1ea5t l\u00e0 g\u00ec v\u00e0 c\u00e1ch n\u00f3 kh\u00e1c bi\u1ec7t so v\u1edbi SFP v\u00e0 SFP28<br><\/p><\/li>\n\n\n\n<li><p>T\u00ecm hi\u1ec3u c\u00e1ch<br> <strong>kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch SFP+ th\u1ef1c s\u1ef1 v\u1eadn h\u00e0nh tr\u00ean c\u00e1c thi\u1ebft b\u1ecb v\u00e0 th\u01b0\u01a1ng hi\u1ec7u kh\u00e1c nhau<br><\/strong><\/p><\/li>\n\n\n\n<li><p>So s\u00e1nh c\u00e1c module SFP+ s\u1eed d\u1ee5ng c\u00e1p quang, c\u00e1p DAC v\u00e0 RJ45 cho c\u00e1c tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng kh\u00e1c nhau<br><\/p><\/li>\n\n\n\n<li><p>Nh\u1eadn di\u1ec7n v\u00e0 kh\u1eafc ph\u1ee5c nhanh ch\u00f3ng c\u00e1c s\u1ef1 c\u1ed1 SFP+ ph\u1ed5 bi\u1ebfn nh\u1ea5t<br><\/p><\/li>\n\n\n\n<li><p>Tu\u00e2n theo m\u1ed9t<br> <strong>danh s\u00e1ch ki\u1ec3m tra th\u1ef1c t\u1ebf \u0111\u1ec3 l\u1ef1a ch\u1ecdn module SFP+ ph\u00f9 h\u1ee3p m\u1ed9t c\u00e1ch t\u1ef1 tin<br><\/strong><\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>V\u00ec sao kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch SFP+ l\u1ea1i quan tr\u1ecdng h\u01a1n th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt<br><\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V\u1ec1 m\u1eb7t k\u1ef9 thu\u1eadt, SFP+ l\u00e0 m\u1ed9t d\u1ea1ng chu\u1ea9n h\u00f3a v\u1ec1 k\u00edch th\u01b0\u1edbc. Nh\u01b0ng trong c\u00e1c tri\u1ec3n khai th\u1ef1c t\u1ebf, n\u00f3 v\u1eadn h\u00e0nh gi\u1ed1ng m\u1ed9t h\u1ec7 sinh th\u00e1i d\u1ef1a tr\u00ean kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch h\u01a1n. C\u00e1c y\u1ebfu t\u1ed1 nh\u01b0 firmware b\u1ed9 chuy\u1ec3n m\u1ea1ch, m\u00e3 h\u00f3a EEPROM, t\u1ed1c \u0111\u1ed9 d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3 v\u00e0 th\u1eadm ch\u00ed c\u1ea3 m\u1ee9c ti\u00eau th\u1ee5 \u0111i\u1ec7n n\u0103ng \u0111\u1ec1u c\u00f3 th\u1ec3 quy\u1ebft \u0111\u1ecbnh li\u1ec7u m\u1ed9t module c\u00f3 ho\u1ea1t \u0111\u1ed9ng \u1ed5n \u0111\u1ecbnh hay ho\u00e0n to\u00e0n th\u1ea5t b\u1ea1i.<br>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ud83d\udc49 N\u00f3i c\u00e1ch kh\u00e1c:<br><br>L\u1ef1a ch\u1ecdn \u0111\u00fang <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/475829.htm\">m\u00f4-\u0111un SFP+<\/a> kh\u00f4ng ch\u1ec9 \u0111\u01a1n thu\u1ea7n l\u00e0 v\u1ec1 t\u1ed1c \u0111\u1ed9 hay kho\u1ea3ng c\u00e1ch\u2014m\u00e0 c\u00f2n l\u00e0 \u0111\u1ea3m b\u1ea3o m\u1ecdi th\u00e0nh ph\u1ea7n trong m\u1ea1ng c\u1ee7a b\u1ea1n ph\u1ed1i h\u1ee3p \u0103n \u00fd v\u1edbi nhau m\u1ed9t c\u00e1ch li\u1ec1n m\u1ea1ch.<br>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\ud83d\udd35 Small Form-factor Pluggable Plus (SFP+) l\u00e0 g\u00ec?<br><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Small Form-factor Pluggable Plus (SFP+) l\u00e0 m\u1ed9t module thu ph\u00e1t nh\u1ecf g\u1ecdn,<br>, <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/491475.htm\">c\u00f3 th\u1ec3 thay th\u1ebf n\u00f3ng<\/a> \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 k\u00edch ho\u1ea1t c\u00e1c k\u1ebft n\u1ed1i Ethernet 10 Gigabit (10GbE) gi\u1eefa c\u00e1c thi\u1ebft b\u1ecb m\u1ea1ng nh\u01b0 b\u1ed9 chuy\u1ec3n m\u1ea1ch, b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn v\u00e0 m\u00e1y ch\u1ee7.<\/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\/7988a25c08c744a4b580191f120bd849.jpg\" alt=\" What Is Small Form-factor Pluggable Plus (SFP+)?\" class=\"wp-image-2880\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/7988a25c08c744a4b580191f120bd849.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/7988a25c08c744a4b580191f120bd849-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/7988a25c08c744a4b580191f120bd849-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/7988a25c08c744a4b580191f120bd849-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/7988a25c08c744a4b580191f120bd849-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">\u0110\u1ecbnh ngh\u0129a SFP+ b\u1eb1ng ng\u00f4n ng\u1eef \u0111\u01a1n gi\u1ea3n<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">V\u1ec1 c\u01a1 b\u1ea3n, m\u00f4-\u0111un SFP+ \u0111\u00f3ng vai tr\u00f2 nh\u01b0 m\u1ed9t c\u1ea7u n\u1ed1i gi\u1eefa thi\u1ebft b\u1ecb m\u1ea1ng c\u1ee7a b\u1ea1n v\u00e0 c\u00e1p. Thay v\u00ec t\u00edch h\u1ee3p c\u1ed1 \u0111\u1ecbnh c\u00e1c c\u1ed5ng v\u00e0o ph\u1ea7n c\u1ee9ng, c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t s\u1eed d\u1ee5ng khe c\u1eafm SFP+ \u0111\u1ec3 b\u1ea1n c\u00f3 th\u1ec3 c\u1eafm lo\u1ea1i k\u1ebft n\u1ed1i ch\u00ednh x\u00e1c m\u00e0 b\u1ea1n c\u1ea7n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">H\u00e3y coi SFP+ nh\u01b0 m\u1ed9t <strong>b\u1ed9 \u0111i\u1ec1u h\u1ee3p linh ho\u1ea1t<\/strong>:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>N\u00f3 cho ph\u00e9p m\u1ed9t c\u1ed5ng h\u1ed7 tr\u1ee3 c\u00e1p s\u1ee3i quang, c\u00e1p \u0111\u1ed3ng ho\u1eb7c c\u00e1p DAC<\/p><\/li>\n\n\n\n<li><p>N\u00f3 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c thay th\u1ebf m\u00e0 kh\u00f4ng c\u1ea7n t\u1eaft ngu\u1ed3n thi\u1ebft b\u1ecb<\/p><\/li>\n\n\n\n<li><p>N\u00f3 cho ph\u00e9p n\u00e2ng c\u1ea5p d\u1ec5 d\u00e0ng t\u1eeb 1G l\u00ean 10G (khi \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3)<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Ch\u00ednh s\u1ef1 linh ho\u1ea1t n\u00e0y l\u00e0 l\u00fd do SFP+ \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/what-is-a-data-center\/\">trung t\u00e2m d\u1eef li\u1ec7u<br><\/a>, m\u1ea1ng doanh nghi\u1ec7p v\u00e0 c\u00e1c m\u00f4i tr\u01b0\u1eddng hi\u1ec7u n\u0103ng cao.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Vai tr\u00f2 c\u1ee7a SFP+ trong m\u1ea1ng 10GbE<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">SFP+ ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf cho Ethernet 10 Gigabit (10GbE), khi\u1ebfn n\u00f3 tr\u1edf th\u00e0nh th\u00e0nh ph\u1ea7n then ch\u1ed1t trong c\u00e1c m\u1ea1ng t\u1ed1c \u0111\u1ed9 cao hi\u1ec7n \u0111\u1ea1i.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Vai tr\u00f2 c\u1ee7a n\u00f3 bao g\u1ed3m:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>Truy\u1ec1n d\u1eef li\u1ec7u t\u1ed1c \u0111\u1ed9 cao<\/strong><br>H\u1ed7 tr\u1ee3 c\u00e1c li\u00ean k\u1ebft 10 Gbps cho c\u00e1c \u1ee9ng d\u1ee5ng \u0111\u00f2i h\u1ecfi b\u0103ng th\u00f4ng l\u1edbn nh\u01b0 \u0111i\u1ec7n to\u00e1n \u0111\u00e1m m\u00e2y, m\u1ea1ng l\u01b0u tr\u1eef v\u00e0 \u1ea3o h\u00f3a<\/p><\/li>\n\n\n\n<li><p><strong>Scalability m\u1ea1ng<\/strong><br>Cho ph\u00e9p n\u00e2ng c\u1ea5p t\u1ed1c \u0111\u1ed9 m\u1ea1ng m\u00e0 kh\u00f4ng c\u1ea7n thay th\u1ebf to\u00e0n b\u1ed9 b\u1ed9 chuy\u1ec3n m\u1ea1ch ho\u1eb7c b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn<\/p><\/li>\n\n\n\n<li><p><strong>H\u1ed7 tr\u1ee3 ph\u01b0\u01a1ng ti\u1ec7n linh ho\u1ea1t<\/strong><br>Ho\u1ea1t \u0111\u1ed9ng v\u1edbi nhi\u1ec1u lo\u1ea1i k\u1ebft n\u1ed1i:<\/p>\n<ul class=\"wp-block-list\">\n<li><p>S\u1ee3i quang (v\u00ed d\u1ee5: SR, LR)<\/p><\/li>\n\n\n\n<li><p>\u0110\u1ed3ng g\u1eafn tr\u1ef1c ti\u1ebfp (DAC)<\/p><\/li>\n\n\n\n<li><p>\u0110\u1ed3ng Ethernet (<a href=\"https:\/\/www.l-p.com\/products\/482686.htm\" target=\"_self\">10GBASE-T RJ45<\/a>)<\/p><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Trong th\u1ef1c t\u1ebf: SFP+ cho ph\u00e9p k\u1ef9 s\u01b0 m\u1ea1ng thi\u1ebft k\u1ebf m\u1ed9t l\u1ea7n v\u00e0 th\u00edch nghi sau \u0111\u00f3, ch\u1ec9 b\u1eb1ng c\u00e1ch thay \u0111\u1ed5i m\u00f4-\u0111un thay v\u00ec thay \u0111\u1ed5i ph\u1ea7n c\u1ee9ng.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">V\u00ec sao SFP+ tr\u00f4ng gi\u1ed1ng SFP\u2014nh\u01b0ng ho\u1ea1t \u0111\u1ed9ng kh\u00e1c nhau<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t trong nh\u1eefng nguy\u00ean nh\u00e2n g\u00e2y nh\u1ea7m l\u1eabn l\u1edbn nh\u1ea5t l\u00e0 <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/476908.htm\">SFP+<\/a> and <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/476763.htm\">SFP<\/a> c\u00f3 c\u00f9ng k\u00edch th\u01b0\u1edbc v\u1eadt l\u00fd v\u00e0 \u0111\u1ea7u n\u1ed1i.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Tuy nhi\u00ean, ch\u00fang kh\u00e1c nhau v\u1ec1 m\u1eb7t n\u1ed9i b\u1ed9.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>C\u00e1c kh\u00e1c bi\u1ec7t ch\u00ednh:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>Giao di\u1ec7n \u0111i\u1ec7n<\/strong><\/p>\n<ul class=\"wp-block-list\">\n<li><p>SFP: \u0110\u01b0\u1ee3c thi\u1ebft k\u1ebf cho t\u1ed1c \u0111\u1ed9 t\u1ed1i \u0111a 1 Gbps<\/p><\/li>\n\n\n\n<li><p>SFP+: \u0110\u01b0\u1ee3c thi\u1ebft k\u1ebf cho t\u1ed1c \u0111\u1ed9 10 Gbps, s\u1eed d\u1ee5ng giao di\u1ec7n t\u00edn hi\u1ec7u t\u1ed1c \u0111\u1ed9 cao h\u01a1n<\/p><\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><p><strong>X\u1eed l\u00fd t\u00edn hi\u1ec7u<\/strong><\/p>\n<ul class=\"wp-block-list\">\n<li><p>C\u00e1c m\u00f4-\u0111un SFP th\u01b0\u1eddng t\u00edch h\u1ee3p nhi\u1ec1u x\u1eed l\u00fd tr\u00ean bo m\u1ea1ch h\u01a1n<\/p><\/li>\n\n\n\n<li><p>SFP+ chuy\u1ec3n ph\u1ea7n l\u1edbn vi\u1ec7c x\u1eed l\u00fd sang thi\u1ebft b\u1ecb ch\u1ee7 (b\u1ed9 chuy\u1ec3n m\u1ea1ch\/NIC), cho ph\u00e9p t\u1ed1c \u0111\u1ed9 cao h\u01a1n v\u00e0 \u0111\u1ed9 tr\u1ec5 th\u1ea5p h\u01a1n<\/p><\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><p><strong>H\u00e0nh vi t\u01b0\u01a1ng th\u00edch<\/strong><\/p>\n<ul class=\"wp-block-list\">\n<li><p>M\u1ed9t s\u1ed1 c\u1ed5ng SFP+ h\u1ed7 tr\u1ee3 <a href=\"https:\/\/www.l-p.com\/products\/478230.htm\" target=\"_self\">C\u00e1c m\u00f4-\u0111un SFP<\/a> (ch\u1ea1y \u1edf t\u1ed1c \u0111\u1ed9 1G)<\/p><\/li>\n\n\n\n<li><p>C\u00e1c c\u1ed5ng SFP n\u00f3i chung kh\u00f4ng h\u1ed7 tr\u1ee3 <a href=\"https:\/\/www.l-p.com\/products\/481432.htm\" target=\"_self\">m\u00f4-\u0111un SFP+<\/a><\/p><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110i\u1ec1u c\u1ea7n l\u01b0u \u00fd quan tr\u1ecdng: T\u01b0\u01a1ng th\u00edch v\u1ec1 m\u1eb7t v\u1eadt l\u00fd KH\u00d4NG \u0111\u1ea3m b\u1ea3o t\u01b0\u01a1ng th\u00edch v\u1ec1 m\u1eb7t ch\u1ee9c n\u0103ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>T\u00f3m t\u1eaft nhanh<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>SFP+ l\u00e0 ti\u00eau chu\u1ea9n b\u1ed9 thu ph\u00e1t c\u00f3 th\u1ec3 c\u1eafm n\u00f3ng d\u00e0nh cho 10GbE<\/p><\/li>\n\n\n\n<li><p>N\u00f3 cung c\u1ea5p t\u00ednh linh ho\u1ea1t, kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng v\u00e0 \u0111\u1ed9c l\u1eadp v\u1edbi ph\u01b0\u01a1ng ti\u1ec7n truy\u1ec1n d\u1eabn<\/p><\/li>\n\n\n\n<li><p>N\u00f3 tr\u00f4ng gi\u1ed1ng h\u1ec7t SFP, nh\u01b0ng s\u1eed d\u1ee5ng giao di\u1ec7n \u0111i\u1ec7n nhanh h\u01a1n v\u00e0 kh\u00e1c bi\u1ec7t<\/p><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\ud83d\udd35 Gi\u1ea3i th\u00edch v\u1ec1 t\u00ednh t\u01b0\u01a1ng th\u00edch c\u1ee7a SFP+<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Khi n\u00f3i \u0111\u1ebfn B\u1ed9 thu ph\u00e1t d\u1ea1ng nh\u1ecf c\u00f3 th\u1ec3 thay th\u1ebf \u0111\u01b0\u1ee3c phi\u00ean b\u1ea3n n\u00e2ng cao (SFP+), t\u00ednh t\u01b0\u01a1ng th\u00edch l\u00e0 y\u1ebfu t\u1ed1 quan tr\u1ecdng nh\u1ea5t\u2014v\u00e0 c\u0169ng l\u00e0 y\u1ebfu t\u1ed1 d\u1ec5 b\u1ecb hi\u1ec3u sai nh\u1ea5t.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Nhi\u1ec1u ng\u01b0\u1eddi d\u00f9ng gi\u1ea3 \u0111\u1ecbnh r\u1eb1ng: <em>\u201cN\u1ebfu module v\u1eeba kh\u00edt v\u00e0o c\u1ed5ng, th\u00ec n\u00f3 ph\u1ea3i ho\u1ea1t \u0111\u1ed9ng \u0111\u01b0\u1ee3c.\u201d<\/em><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Tr\u00ean th\u1ef1c t\u1ebf, t\u00ednh t\u01b0\u01a1ng th\u00edch c\u1ee7a SFP+ ph\u1ee5 thu\u1ed9c v\u00e0o nhi\u1ec1u l\u1edbp t\u01b0\u01a1ng t\u00e1c, ch\u1ee9 kh\u00f4ng ch\u1ec9 \u0111\u01a1n thu\u1ea7n l\u00e0 s\u1ef1 v\u1eeba kh\u00edt v\u1ec1 m\u1eb7t v\u1eadt l\u00fd. Vi\u1ec7c hi\u1ec3u r\u00f5 c\u00e1c l\u1edbp n\u00e0y l\u00e0 \u0111i\u1ec1u thi\u1ebft y\u1ebfu \u0111\u1ec3 tr\u00e1nh c\u00e1c s\u1ef1 c\u1ed1 kh\u00f4ng b\u1eaft \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i, chi ph\u00ed l\u00e3ng ph\u00ed v\u00e0 th\u1ea5t b\u1ea1i trong tri\u1ec3n khai.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img decoding=\"async\" width=\"1200\" height=\"675\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/3c84631f959545d2b1bfd8b94c697fa3.jpg\" alt=\"SFP+ Compatibility Explained\" class=\"wp-image-2881\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/3c84631f959545d2b1bfd8b94c697fa3.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/3c84631f959545d2b1bfd8b94c697fa3-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/3c84631f959545d2b1bfd8b94c697fa3-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/3c84631f959545d2b1bfd8b94c697fa3-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/3c84631f959545d2b1bfd8b94c697fa3-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">V\u00ec sao \u201cV\u1eeba kh\u00edt\u201d KH\u00d4NG c\u00f3 ngh\u0129a l\u00e0 \u201cHo\u1ea1t \u0111\u1ed9ng \u0111\u01b0\u1ee3c\u201d<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c module SFP+ \u0111\u01b0\u1ee3c chu\u1ea9n h\u00f3a v\u1ec1 k\u00edch th\u01b0\u1edbc, do \u0111\u00f3 ch\u00fang s\u1ebd c\u1eafm v\u1eeba v\u00e0o b\u1ea5t k\u1ef3 c\u1ed5ng SFP+ n\u00e0o v\u1ec1 m\u1eb7t v\u1eadt l\u00fd. Tuy nhi\u00ean, vi\u1ec7c ho\u1ea1t \u0111\u1ed9ng th\u00e0nh c\u00f4ng ph\u1ee5 thu\u1ed9c v\u00e0o vi\u1ec7c thi\u1ebft b\u1ecb ch\u1ee7 (<span class=\"host-device\">) c\u00f3 th\u1ec3 giao ti\u1ebfp \u0111\u00fang c\u00e1ch v\u1edbi module hay kh\u00f4ng.<a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/what-is-a-network-switch\/\">b\u1ed9 chuy\u1ec3n m\u1ea1ch<\/a>, <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/what-is-a-router-key-functions-types\/\">b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn<\/a>, or <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/what-is-nic-network-interface-card\/\">NIC<\/a>) c\u00f3 th\u1ec3 giao ti\u1ebfp \u0111\u00fang c\u00e1ch v\u1edbi module.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t k\u1ebft n\u1ed1i ho\u1ea1t \u0111\u1ed9ng y\u00eau c\u1ea7u s\u1ef1 \u0111\u1ed3ng b\u1ed9 v\u1ec1:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>T\u00edn hi\u1ec7u \u0111i\u1ec7n<\/p><\/li>\n\n\n\n<li><p>T\u1ed1c \u0111\u1ed9 d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3 (1G \/ 10G \/ \u0111a t\u1ed1c \u0111\u1ed9)<\/p><\/li>\n\n\n\n<li><p>T\u00ednh t\u01b0\u01a1ng th\u00edch ph\u1ea7n m\u1ec1m\u56fa\u4ef6<\/p><\/li>\n\n\n\n<li><p>Nh\u1eadn d\u1ea1ng nh\u00e0 s\u1ea3n xu\u1ea5t (m\u00e3 h\u00f3a EEPROM)<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">N\u1ebfu b\u1ea5t k\u1ef3 y\u1ebfu t\u1ed1 n\u00e0o trong s\u1ed1 n\u00e0y kh\u00f4ng kh\u1edbp, k\u1ebft qu\u1ea3 th\u01b0\u1eddng l\u00e0:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Kh\u00f4ng c\u00f3 \u0111\u00e8n b\u00e1o li\u00ean k\u1ebft<\/p><\/li>\n\n\n\n<li><p>Module kh\u00f4ng \u0111\u01b0\u1ee3c ph\u00e1t hi\u1ec7n<\/p><\/li>\n\n\n\n<li><p>K\u1ebft n\u1ed1i b\u1ecb k\u1eb9t \u1edf t\u1ed1c \u0111\u1ed9 sai<\/p><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">B\u1ed1n y\u1ebfu t\u1ed1 ch\u00ednh quy\u1ebft \u0111\u1ecbnh t\u00ednh t\u01b0\u01a1ng th\u00edch c\u1ee7a SFP+<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\">T\u00ednh t\u01b0\u01a1ng th\u00edch v\u1edbi thi\u1ebft b\u1ecb ch\u1ee7 (Switch \/ Router \/ NIC)<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Kh\u00f4ng ph\u1ea3i t\u1ea5t c\u1ea3 c\u00e1c c\u1ed5ng SFP+ \u0111\u1ec1u ho\u1ea1t \u0111\u1ed9ng nh\u01b0 nhau.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>M\u1ed9t s\u1ed1 c\u1ed5ng ch\u1ec9 h\u1ed7 tr\u1ee3 10G<\/p><\/li>\n\n\n\n<li><p>M\u1ed9t s\u1ed1 h\u1ed7 tr\u1ee3 c\u1ea3 1G + 10G (hai t\u1ed1c \u0111\u1ed9)<\/p><\/li>\n\n\n\n<li><p>M\u1ed9t s\u1ed1 h\u1ed7 tr\u1ee3 \u0111a gigabit (hi\u1ebfm, ph\u1ea7n c\u1ee9ng m\u1edbi h\u01a1n)<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00ed d\u1ee5 v\u1ec1 s\u1ef1 c\u1ed1: C\u1eafm module SFP 1G v\u00e0o c\u1ed5ng SFP+ ch\u1ec9 h\u1ed7 tr\u1ee3 10G \u2192 \u274c Kh\u00f4ng c\u00f3 k\u1ebft n\u1ed1i<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">M\u00e3 h\u00f3a nh\u00e0 s\u1ea3n xu\u1ea5t (kh\u00f3a EEPROM)<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed7i module SFP+ ch\u1ee9a m\u1ed9t chip b\u1ed9 nh\u1edb nh\u1ecf (EEPROM) \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>T\u00ean nh\u00e0 s\u1ea3n xu\u1ea5t (v\u00ed d\u1ee5: Cisco, MikroTik, Ubiquiti)<\/p><\/li>\n\n\n\n<li><p>M\u00f4 h\u00ecnh v\u00e0 kh\u1ea3 n\u0103ng<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Nhi\u1ec1u thi\u1ebft b\u1ecb m\u1ea1ng ki\u1ec3m tra th\u00f4ng tin n\u00e0y v\u00e0 c\u00f3 th\u1ec3:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>\u2705 Ch\u1ea5p nh\u1eadn <a href=\"https:\/\/www.l-p.com\/products\/475605.htm\" target=\"_self\">t\u01b0\u01a1ng th\u00edch \u0111\u00e3 \u0111\u01b0\u1ee3c m\u00e3 h\u00f3a theo nh\u00e0 cung c\u1ea5p<\/a><\/p><\/li>\n\n\n\n<li><p>\u26a0\ufe0f Hi\u1ec3n th\u1ecb c\u1ea3nh b\u00e1o<\/p><\/li>\n\n\n\n<li><p>\u274c T\u1eeb ch\u1ed1i ho\u00e0n to\u00e0n c\u00e1c module kh\u00f4ng \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u00e2y l\u00e0 l\u00fd do v\u00ec sao:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>\u201cC\u00e1c module \u201dchung chung\u201d \u0111\u00f4i khi th\u1ea5t b\u1ea1i<\/p><\/li>\n\n\n\n<li><p>\u201cC\u00e1c module \u201dt\u01b0\u01a1ng th\u00edch v\u1edbi nh\u00e0 s\u1ea3n xu\u1ea5t\u201d \u0111ang r\u1ea5t \u0111\u01b0\u1ee3c \u01b0a chu\u1ed9ng<\/p><\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">T\u00ednh t\u01b0\u01a1ng th\u00edch lo\u1ea1i ph\u01b0\u01a1ng ti\u1ec7n (s\u1ee3i quang, c\u00e1p DAC, RJ45)<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c c\u1ed5ng SFP+ h\u1ed7 tr\u1ee3 nhi\u1ec1u lo\u1ea1i k\u1ebft n\u1ed1i, nh\u01b0ng kh\u00f4ng ph\u1ea3i l\u00fac n\u00e0o c\u0169ng h\u1ed7 tr\u1ee3 ph\u1ed5 qu\u00e1t.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>F<\/strong>Module s\u1ee3i quang (SR\/LR) \u2192 \u0110\u01b0\u1ee3c h\u1ed7 tr\u1ee3 r\u1ed9ng r\u00e3i nh\u1ea5t<\/p><\/li>\n\n\n\n<li><p>C\u00e1p DAC \u2192 Gi\u1edbi h\u1ea1n b\u1edfi chi\u1ec1u d\u00e0i c\u00e1p v\u00e0 m\u1ee9c \u0111\u1ed9 h\u1ed7 tr\u1ee3 c\u1ee7a thi\u1ebft b\u1ecb<\/p><\/li>\n\n\n\n<li><p>RJ45 (<span class=\"rj45\">)<a href=\"https:\/\/www.l-p.com\/products\/482688.htm\" target=\"_self\">10GBASE-T<\/a>) \u2192 Ti\u00eau th\u1ee5 \u0111i\u1ec7n n\u0103ng cao, kh\u00f4ng \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3 tr\u00ean t\u1ea5t c\u1ea3 c\u00e1c thi\u1ebft b\u1ecb<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Sai l\u1ea7m ph\u1ed5 bi\u1ebfn: S\u1eed d\u1ee5ng module SFP+ RJ45 tr\u00ean switch kh\u00f4ng h\u1ed7 tr\u1ee3<br> <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/491468.htm\">b\u1ed9 thu ph\u00e1t \u0111\u1ed3ng (copper transceivers)<br><\/a><\/p>\n\n\n\n<h4 class=\"wp-block-heading\">\u0110\u00e0m ph\u00e1n t\u1ed1c \u0111\u1ed9 &amp; \u0110\u1ed3ng b\u1ed9 t\u1ef7 l\u1ec7<br><\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c module SFP+ th\u01b0\u1eddng \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 ho\u1ea1t \u0111\u1ed9ng c\u1ed1 \u0111\u1ecbnh \u1edf t\u1ed1c \u0111\u1ed9 10 Gbps, kh\u00e1c v\u1edbi c\u00e1c c\u1ed5ng Ethernet truy\u1ec1n th\u1ed1ng c\u00f3 kh\u1ea3 n\u0103ng t\u1ef1 \u0111\u1ed9ng \u0111\u00e0m ph\u00e1n m\u1ed9t c\u00e1ch d\u1ec5 d\u00e0ng.<br>.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>M\u1ed9t s\u1ed1 module h\u1ed7 tr\u1ee3 tr\u1edf v\u1ec1 1 Gbps<br><\/p><\/li>\n\n\n\n<li><p>C\u00e1c module kh\u00e1c ch\u1ec9 ho\u1ea1t \u0111\u1ed9ng \u1edf t\u1ed1c \u0111\u1ed9 10 Gbps<br><\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">H\u1ec7 qu\u1ea3: Kh\u00f4ng kh\u1edbp t\u1ed1c \u0111\u1ed9 = kh\u00f4ng b\u1eaft \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i ho\u1eb7c k\u1ebft n\u1ed1i kh\u00f4ng \u1ed5n \u0111\u1ecbnh<br><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">C\u00e1c t\u00ecnh hu\u1ed1ng t\u01b0\u01a1ng th\u00edch trong th\u1ef1c t\u1ebf<br><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Hi\u1ec3u l\u00fd thuy\u1ebft l\u00e0 h\u1eefu \u00edch\u2014nh\u01b0ng tri\u1ec3n khai th\u1ef1c t\u1ebf th\u01b0\u1eddng l\u00e0m l\u1ed9 nh\u1eefng v\u1ea5n \u0111\u1ec1 ti\u1ec1m \u1ea9n:<br><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>\u2714 Ho\u1ea1t \u0111\u1ed9ng t\u1ed1t:<br><br>Switch c\u00f9ng th\u01b0\u01a1ng hi\u1ec7u + module SFP+ do nh\u00e0 cung c\u1ea5p m\u00e3 h\u00f3a<br><\/p><\/li>\n\n\n\n<li><p>\u26a0\ufe0f Ho\u1ea1t \u0111\u1ed9ng nh\u01b0ng c\u00f3 c\u1ea3nh b\u00e1o:<br><br><a href=\"https:\/\/www.l-p.com\/products\/476044.htm\" target=\"_self\">Module b\u00ean th\u1ee9 ba<br><\/a> tr\u00ean switch c\u00f3 t\u00ednh dung n\u1ea1p cao<br><\/p><\/li>\n\n\n\n<li><p>\u274c Th\u1ea5t b\u1ea1i:<br><br>Thi\u1ebft l\u1eadp ch\u00e9o nh\u00e0 s\u1ea3n xu\u1ea5t v\u1edbi vi\u1ec7c \u00e1p d\u1ee5ng firmware nghi\u00eam ng\u1eb7t<br><\/p><\/li>\n\n\n\n<li><p>\u274c Th\u1ea5t b\u1ea1i:<br><br>C\u1ed5ng ch\u1ec9 h\u1ed7 tr\u1ee3 10 Gbps + module 1 Gbps<br><\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Tr\u01b0\u1edbc khi ch\u1ecdn module SFP+, lu\u00f4n x\u00e1c minh:<br><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2714 Thi\u1ebft b\u1ecb c\u1ee7a b\u1ea1n c\u00f3 h\u1ed7 tr\u1ee3 SFP+ (10 Gbps), ch\u1ee9 kh\u00f4ng ch\u1ec9 SFP (1 Gbps) kh\u00f4ng?<br><br>\u2714 C\u1ed5ng c\u00f3 h\u1ed7 tr\u1ee3 t\u1ed1c \u0111\u1ed9 y\u00eau c\u1ea7u (1 Gbps \/ 10 Gbps) kh\u00f4ng?<br><br>\u2714 Module \u0111\u00e3 \u0111\u01b0\u1ee3c m\u00e3 h\u00f3a cho th\u01b0\u01a1ng hi\u1ec7u thi\u1ebft b\u1ecb c\u1ee7a b\u1ea1n ch\u01b0a?<br><br>\u2714 Lo\u1ea1i ph\u01b0\u01a1ng ti\u1ec7n \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3 (s\u1ee3i quang \/ DAC \/ RJ45) kh\u00f4ng?<br><br>\u2714 Ng\u00e2n s\u00e1ch c\u00f4ng su\u1ea5t\/nhi\u1ec7t c\u00f3 \u0111\u1ee7 kh\u00f4ng (\u0111\u1eb7c bi\u1ec7t \u0111\u1ed1i v\u1edbi RJ45)?<br><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ud83d\udc49 <strong>T\u00ednh t\u01b0\u01a1ng th\u00edch SFP+ kh\u00f4ng mang t\u00ednh to\u00e0n c\u1ea7u\u2014m\u00e0 mang t\u00ednh \u0111i\u1ec1u ki\u1ec7n.<br>.<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Th\u00e0nh c\u00f4ng ph\u1ee5 thu\u1ed9c v\u00e0o vi\u1ec7c \u0111\u1ed3ng b\u1ed9 h\u00f3a:<br><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Kh\u1ea3 n\u0103ng thi\u1ebft b\u1ecb<br><\/p><\/li>\n\n\n\n<li><p>Lo\u1ea1i m\u00f4-\u0111un<\/p><\/li>\n\n\n\n<li><p>T\u00ednh t\u01b0\u01a1ng th\u00edch nh\u00e0 cung c\u1ea5p<\/p><\/li>\n\n\n\n<li><p>Thi\u1ebft k\u1ebf m\u1ea1ng<br><\/p><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\ud83d\udd35 SFP so v\u1edbi SFP+ so v\u1edbi SFP28: S\u1ef1 kh\u00e1c bi\u1ec7t l\u00e0 g\u00ec?<br><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c l\u1ef1a ch\u1ecdn gi\u1eefa SFP, SFP+ v\u00e0 SFP28 l\u00e0 m\u1ed9t trong nh\u1eefng quy\u1ebft \u0111\u1ecbnh ph\u1ed5 bi\u1ebfn nh\u1ea5t\u2014and t\u1ed1n k\u00e9m nh\u1ea5t\u2014trong thi\u1ebft k\u1ebf m\u1ea1ng. D\u00f9 ch\u00fang g\u1ea7n nh\u01b0 gi\u1ed1ng nhau v\u1ec1 h\u00ecnh d\u00e1ng, nh\u01b0ng l\u1ea1i kh\u00e1c bi\u1ec7t \u0111\u00e1ng k\u1ec3 v\u1ec1 t\u1ed1c \u0111\u1ed9, giao di\u1ec7n \u0111i\u1ec7n v\u00e0 kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch trong th\u1ef1c t\u1ebf.<br>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ph\u1ea7n n\u00e0y ph\u00e2n t\u00edch r\u00f5 r\u00e0ng nh\u1eefng kh\u00e1c bi\u1ec7t \u0111\u1ec3 b\u1ea1n c\u00f3 th\u1ec3<br> <strong>s<\/strong>l\u1ef1a ch\u1ecdn module ph\u00f9 h\u1ee3p m\u1ed9t c\u00e1ch t\u1ef1 tin v\u00e0 tr\u00e1nh nh\u1eefng sai l\u1ea7m ph\u1ed5 bi\u1ebfn.<br>.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1200\" height=\"675\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/483a17415de840318c13d6c57ce3e45d.jpg\" alt=\"SFP vs. SFP+ vs. SFP28: What\u2019s the Difference?\" class=\"wp-image-2882\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/483a17415de840318c13d6c57ce3e45d.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/483a17415de840318c13d6c57ce3e45d-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/483a17415de840318c13d6c57ce3e45d-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/483a17415de840318c13d6c57ce3e45d-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/483a17415de840318c13d6c57ce3e45d-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">So s\u00e1nh nhanh:<br> <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/blog\/buying-guide\/sfp-vs-sfp-plus-vs-sfp28.htm\">SFP so v\u1edbi SFP+ so v\u1edbi SFP28<br><\/a><\/h3>\n\n\n\n<figure class=\"wp-block-table\">\n<table class=\"has-fixed-layout\">\n<colgroup><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><\/colgroup><tbody><tr><th colspan=\"1\" rowspan=\"1\"><p>\u0110\u1eb7c t\u00ednh<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>SFP<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>SFP+<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>SFP28<\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>T\u1ed1c \u0111\u1ed9 t\u1ed1i \u0111a<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>1 Gbps<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>10 Gbps<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>25 Gbps<br><\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>C\u00e1c ti\u00eau chu\u1ea9n ph\u1ed5 bi\u1ebfn<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>1000BASE-SX\/LX<br><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>10GBASE-SR\/LR<br><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>25GBASE-SR\/LR<br><\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>Giao di\u1ec7n \u0111i\u1ec7n<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>T\u1ed1c \u0111\u1ed9 th\u1ea5p<br><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>N\u00e2ng cao (10 Gbps)<br><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>T\u1ed1i \u01b0u (25 Gbps)<br><\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>Tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng \u0111i\u1ec3n h\u00ecnh<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>M\u1ea1ng k\u1ebf th\u1eeba \/ truy c\u1eadp<br><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Trung t\u00e2m d\u1eef li\u1ec7u \/ doanh nghi\u1ec7p<br><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Hi\u1ec7u n\u0103ng cao \/ \u0111i\u1ec7n to\u00e1n \u0111\u00e1m m\u00e2y<br><\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>Kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch ng\u01b0\u1ee3c<br><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\u2014<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Th\u01b0\u1eddng h\u1ed7 tr\u1ee3 SFP (1 Gbps)*<br><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Th\u01b0\u1eddng h\u1ed7 tr\u1ee3 SFP+ (10 Gbps)*<br><\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>K\u00edch th\u01b0\u1edbc v\u1eadt l\u00fd<br><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Same<br><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Same<br><\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Same<br><\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">*T\u00f9y thu\u1ed9c v\u00e0o h\u1ed7 tr\u1ee3 c\u1ee7a thi\u1ebft b\u1ecb (kh\u00f4ng \u0111\u1ea3m b\u1ea3o)<br><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">S\u1ef1 kh\u00e1c bi\u1ec7t v\u1ec1 t\u1ed1c \u0111\u1ed9 v\u00e0 hi\u1ec7u n\u0103ng<br><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">S\u1ef1 kh\u00e1c bi\u1ec7t r\u00f5 r\u00e0ng nh\u1ea5t l\u00e0<br> <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/products\/sfp-data-rate-1g-10g-25g-guide\/\">100G<\/a>:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><a href=\"https:\/\/www.l-p.com\/store-26155-1g-sfp.htm\" target=\"_self\"><strong>SFP (1G)<\/strong><\/a><br>\u0110\u01b0\u1ee3c thi\u1ebft k\u1ebf cho Gigabit Ethernet, ph\u00f9 h\u1ee3p cho m\u1ea1ng c\u01a1 b\u1ea3n v\u00e0 h\u1ec7 th\u1ed1ng k\u1ebf th\u1eeba<\/p><\/li>\n\n\n\n<li><p><a href=\"https:\/\/www.l-p.com\/store-26192-10g-sfp.htm\" target=\"_self\"><strong>SFP+ (10G)<\/strong><\/a><br>L\u1ef1a ch\u1ecdn ph\u1ed5 bi\u1ebfn cho c\u00e1c m\u1ea1ng doanh nghi\u1ec7p hi\u1ec7n \u0111\u1ea1i v\u00e0 trung t\u00e2m d\u1eef li\u1ec7u<\/p><\/li>\n\n\n\n<li><p><a href=\"https:\/\/www.l-p.com\/store-26225-25g-sfp28.htm\" target=\"_self\"><strong>SFP28 (25G)<\/strong><\/a><br>\u0110\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c m\u00f4i tr\u01b0\u1eddng hi\u1ec7u n\u0103ng cao nh\u01b0 c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng \u0111i\u1ec7n to\u00e1n \u0111\u00e1m m\u00e2y v\u00e0 trung t\u00e2m d\u1eef li\u1ec7u quy m\u00f4 l\u1edbn<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Th\u00f4ng tin th\u1ef1c ti\u1ec5n: Ph\u1ea7n l\u1edbn tri\u1ec3n khai hi\u1ec7n nay chu\u1ea9n h\u00f3a tr\u00ean SFP+ (10G) nh\u01b0 m\u1ed9t s\u1ef1 c\u00e2n b\u1eb1ng gi\u1eefa chi ph\u00ed v\u00e0 hi\u1ec7u n\u0103ng.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Giao di\u1ec7n \u0111i\u1ec7n: S\u1ef1 kh\u00e1c bi\u1ec7t \u1ea9n<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1eb7c d\u00f9 c\u1ea3 ba module \u0111\u1ec1u chia s\u1ebb c\u00f9ng m\u1ed9t d\u1ea1ng h\u00ecnh h\u1ecdc, <strong>i<\/strong>thi\u1ebft k\u1ebf \u0111i\u1ec7n b\u00ean trong c\u1ee7a ch\u00fang r\u1ea5t kh\u00e1c nhau.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>SFP<\/strong> bao g\u1ed3m x\u1eed l\u00fd t\u00edn hi\u1ec7u t\u00edch h\u1ee3p nhi\u1ec1u h\u01a1n tr\u00ean bo m\u1ea1ch<\/p><\/li>\n\n\n\n<li><p><strong>SFP+<\/strong> chuy\u1ec3n vi\u1ec7c x\u1eed l\u00fd sang thi\u1ebft b\u1ecb ch\u1ee7, cho ph\u00e9p t\u1ed1c \u0111\u1ed9 cao h\u01a1n v\u00e0 \u0111\u1ed9 tr\u1ec5 th\u1ea5p h\u01a1n<\/p><\/li>\n\n\n\n<li><p><strong>SFP28<\/strong> t\u1ed1i \u01b0u h\u00f3a th\u00eam \u0111\u1ed9 to\u00e0n v\u1eb9n t\u00edn hi\u1ec7u cho hi\u1ec7u n\u0103ng 25G<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">L\u00fd do \u0111i\u1ec1u n\u00e0y quan tr\u1ecdng:<br>Ngay c\u1ea3 khi m\u1ed9t module v\u1eeba v\u1ec1 m\u1eb7t v\u1eadt l\u00fd, ph\u1ea7n c\u1ee9ng thi\u1ebft b\u1ecb ch\u1ee7 v\u1eabn ph\u1ea3i h\u1ed7 tr\u1ee3 ti\u00eau chu\u1ea9n t\u00edn hi\u1ec7u y\u00eau c\u1ea7u.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch ng\u01b0\u1ee3c (\u0110i\u1ec1u g\u00ec th\u1ef1c s\u1ef1 ho\u1ea1t \u0111\u1ed9ng)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u00e2y l\u00e0 n\u01a1i g\u00e2y nh\u1ea7m l\u1eabn \u2014 v\u00e0 sai l\u1ea7m \u2014 nhi\u1ec1u nh\u1ea5t.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>C\u00e1c quy t\u1eafc chung:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>\u2705 <strong>C\u00e1c module SFP th\u01b0\u1eddng c\u00f3 th\u1ec3 ho\u1ea1t \u0111\u1ed9ng tr\u00ean c\u00e1c c\u1ed5ng SFP+<\/strong><br>(ch\u1ea1y \u1edf t\u1ed1c \u0111\u1ed9 1G, n\u1ebfu c\u1ed5ng h\u1ed7 tr\u1ee3 t\u1ed1c \u0111\u1ed9 k\u00e9p)<\/p><\/li>\n\n\n\n<li><p>\u26a0\ufe0f <strong>Module SFP+ tr\u00ean c\u1ed5ng SFP \u2192 KH\u00d4NG \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3<\/strong><\/p><\/li>\n\n\n\n<li><p>\u2705 <strong>Module SFP+ c\u00f3 th\u1ec3 ho\u1ea1t \u0111\u1ed9ng tr\u00ean c\u00e1c c\u1ed5ng SFP28<\/strong><br>(ch\u1ea1y \u1edf t\u1ed1c \u0111\u1ed9 10G, t\u00f9y thu\u1ed9c v\u00e0o ph\u1ea7n c\u1ee9ng)<\/p><\/li>\n\n\n\n<li><p>\u26a0\ufe0f <strong>C\u00e1c c\u1ed5ng SFP28 KH\u00d4NG lu\u00f4n h\u1ed7 tr\u1ee3 c\u00e1c t\u1ed1c \u0111\u1ed9 th\u1ea5p h\u01a1n<\/strong><\/p><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Th\u1ef1c t\u1ebf kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch trong th\u1ebf gi\u1edbi th\u1ef1c<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">T\u1eeb kh\u00f3a l\u00e0: \u201ct\u00f9y thu\u1ed9c\u201d<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1edfi:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Thi\u1ebft k\u1ebf ph\u1ea7n c\u1ee9ng c\u1ee7a b\u1ed9 chuy\u1ec3n m\u1ea1ch\/b\u1ed9 \u0111i\u1ec1u khi\u1ec3n giao di\u1ec7n m\u1ea1ng (NIC)<\/p><\/li>\n\n\n\n<li><p>Gi\u1edbi h\u1ea1n ph\u1ea7n m\u1ec1m\u56fa\u4ef6 (firmware)<\/p><\/li>\n\n\n\n<li><p>Ch\u00ednh s\u00e1ch c\u1ee7a nh\u00e0 cung c\u1ea5p<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>V\u00ed d\u1ee5:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>M\u1ed9t c\u1ed5ng SFP+ c\u00f3 th\u1ec3 h\u1ed7 tr\u1ee3 tr\u1edf l\u1ea1i t\u1ed1c \u0111\u1ed9 1G<\/p><\/li>\n\n\n\n<li><p>M\u1ed9t c\u1ed5ng kh\u00e1c (c\u00f9ng t\u1ed1c \u0111\u1ed9) c\u00f3 th\u1ec3 t\u1eeb ch\u1ed1i ho\u00e0n to\u00e0n ch\u1ee9c n\u0103ng n\u00e0y<\/p><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Nh\u1eefng sai l\u1ea7m ph\u1ed5 bi\u1ebfn khi mua (v\u00e0 c\u00e1ch tr\u00e1nh ch\u00fang)<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\">\u274c Sai l\u1ea7m 1: Gi\u1ea3 \u0111\u1ecbnh T\u1ea5t c\u1ea3 <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/what-is-an-sfp-interface\/\">C\u1ed5ng SFP<\/a> \u0110\u1ec1u gi\u1ed1ng nhau<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Th\u1ef1c t\u1ebf: SFP, SFP+ v\u00e0 SFP28 kh\u00f4ng th\u1ec3 thay th\u1ebf l\u1eabn nhau<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u2714 C\u00e1ch kh\u1eafc ph\u1ee5c: Lu\u00f4n ki\u1ec3m tra lo\u1ea1i c\u1ed5ng + c\u00e1c t\u1ed1c \u0111\u1ed9 \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">\u274c Sai l\u1ea7m 2: B\u1ecf qua kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch ng\u01b0\u1ee3c<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Kh\u00f4ng ph\u1ea3i t\u1ea5t c\u1ea3 c\u00e1c c\u1ed5ng SFP+ \u0111\u1ec1u h\u1ed7 tr\u1ee3 module 1G<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u2714 C\u00e1ch kh\u1eafc ph\u1ee5c: X\u00e1c nh\u1eadn <strong>h\u1ed7 tr\u1ee3 t\u1ed1c \u0111\u1ed9 k\u00e9p (1G\/10G)<\/strong><\/p>\n\n\n\n<h4 class=\"wp-block-heading\">\u274c Sai l\u1ea7m 3: Mua ch\u1ec9 d\u1ef1a tr\u00ean t\u1ed1c \u0111\u1ed9<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Ch\u1ec9 ri\u00eang t\u1ed1c \u0111\u1ed9 kh\u00f4ng \u0111\u1ea3m b\u1ea3o kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u2714 C\u00e1ch kh\u1eafc ph\u1ee5c: Ph\u00f9 h\u1ee3p v\u1edbi:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Thi\u1ebft b\u1ecb<\/p><\/li>\n\n\n\n<li><p>Lo\u1ea1i m\u00f4-\u0111un<\/p><\/li>\n\n\n\n<li><p>Ph\u01b0\u01a1ng ti\u1ec7n truy\u1ec1n d\u1eabn<\/p><\/li>\n\n\n\n<li><p>H\u1ed7 tr\u1ee3 c\u1ee7a nh\u00e0 cung c\u1ea5p<\/p><\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">\u274c Sai l\u1ea7m 4: Tr\u1ea3 qu\u00e1 cao cho hi\u1ec7u n\u0103ng kh\u00f4ng c\u1ea7n thi\u1ebft<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Nhi\u1ec1u m\u1ea1ng kh\u00f4ng c\u1ea7n 25G (SFP28)<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u2714 C\u00e1ch kh\u1eafc ph\u1ee5c: Ch\u1ecdn d\u1ef1a tr\u00ean:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Nhu c\u1ea7u b\u0103ng th\u00f4ng th\u1ef1c t\u1ebf<\/p><\/li>\n\n\n\n<li><p>Ng\u00e2n s\u00e1ch<\/p><\/li>\n\n\n\n<li><p>Kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng trong t\u01b0\u01a1ng lai<\/p><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Khi n\u00e0o n\u00ean s\u1eed d\u1ee5ng t\u1eebng lo\u1ea1i?<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>Ch\u1ecdn SFP (1G)<\/strong><br>\u2192 H\u1ec7 th\u1ed1ng c\u0169, nhu c\u1ea7u b\u0103ng th\u00f4ng th\u1ea5p<\/p><\/li>\n\n\n\n<li><p><strong>Ch\u1ecdn SFP+ (10G)<\/strong><br>\u2192 H\u1ea7u h\u1ebft \u1ee9ng d\u1ee5ng doanh nghi\u1ec7p v\u00e0 trung t\u00e2m d\u1eef li\u1ec7u (c\u00e2n b\u1eb1ng t\u1ed1t nh\u1ea5t)<\/p><\/li>\n\n\n\n<li><p><strong>Ch\u1ecdn SFP28 (25G)<\/strong><br>\u2192 M\u00f4i tr\u01b0\u1eddng m\u1eadt \u0111\u1ed9 cao, hi\u1ec7u n\u0103ng cao<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\ud83d\udc49 <strong>C\u00f9ng k\u00edch th\u01b0\u1edbc kh\u00f4ng c\u00f3 ngh\u0129a l\u00e0 c\u00f9ng kh\u1ea3 n\u0103ng.<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>SFP = 1G<\/p><\/li>\n\n\n\n<li><p>SFP+ = 10G<\/p><\/li>\n\n\n\n<li><p>SFP28 = 25G<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Nh\u01b0ng quan tr\u1ecdng h\u01a1n:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/how-to-test-sfp-compatibility\/\"><strong>T\u01b0\u01a1ng th\u00edch<\/strong><\/a><strong> ph\u1ee5 thu\u1ed9c v\u00e0o thi\u1ebft b\u1ecb ch\u1ee7 \u2014 kh\u00f4ng ch\u1ec9 v\u00e0o module.<\/strong><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\ud83d\udd35 C\u00e1c lo\u1ea1i module SFP+: S\u1ee3i quang, DAC v\u00e0 RJ45<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t trong nh\u1eefng \u01b0u \u0111i\u1ec3m ch\u00ednh c\u1ee7a Small Form-factor Pluggable Plus (SFP+) l\u00e0 t\u00ednh linh ho\u1ea1t trong vi\u1ec7c h\u1ed7 tr\u1ee3 nhi\u1ec1u ph\u01b0\u01a1ng ti\u1ec7n truy\u1ec1n d\u1eabn. Tuy nhi\u00ean, t\u00ednh linh ho\u1ea1t n\u00e0y c\u0169ng g\u00e2y nh\u1ea7m l\u1eabn khi l\u1ef1a ch\u1ecdn gi\u1eefa c\u00e1c module s\u1ee3i quang, DAC v\u00e0 RJ45.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed7i lo\u1ea1i module SFP+ \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf cho m\u1ed9t tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng c\u1ee5 th\u1ec3, ph\u1ea1m vi kho\u1ea3ng c\u00e1ch v\u00e0 y\u00eau c\u1ea7u hi\u1ec7u n\u0103ng nh\u1ea5t \u0111\u1ecbnh. Vi\u1ec7c ch\u1ecdn sai lo\u1ea1i c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn c\u00e1c v\u1ea5n \u0111\u1ec1 v\u1ec1 t\u01b0\u01a1ng th\u00edch, li\u00ean k\u1ebft kh\u00f4ng \u1ed5n \u0111\u1ecbnh ho\u1eb7c chi ph\u00ed t\u0103ng kh\u00f4ng c\u1ea7n thi\u1ebft.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1200\" height=\"675\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/1d1471a149734937889cf412feb77484.jpg\" alt=\"SFP+ Module Types: Fiber, DAC, and RJ45\" class=\"wp-image-2883\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/1d1471a149734937889cf412feb77484.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/1d1471a149734937889cf412feb77484-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/1d1471a149734937889cf412feb77484-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/1d1471a149734937889cf412feb77484-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/1d1471a149734937889cf412feb77484-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Module s\u1ee3i quang SFP+ (SR v\u00e0 LR)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c module SFP+ d\u1ef1a tr\u00ean s\u1ee3i quang l\u00e0 lo\u1ea1i \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i nh\u1ea5t trong <strong>m\u00f4i tr\u01b0\u1eddng doanh nghi\u1ec7p v\u00e0 trung t\u00e2m d\u1eef li\u1ec7u<\/strong>, \u0111\u1eb7c bi\u1ec7t \u1edf nh\u1eefng n\u01a1i y\u00eau c\u1ea7u truy\u1ec1n d\u1eabn kho\u1ea3ng c\u00e1ch xa v\u00e0 hi\u1ec7u n\u0103ng cao.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">\ud83d\udd39 <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/475415.htm\">SFP+ SR<\/a> (Ph\u1ea1m vi ng\u1eafn)<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>B\u01b0\u1edbc s\u00f3ng: 850nm<\/p><\/li>\n\n\n\n<li><p>Lo\u1ea1i s\u1ee3i: S\u1ee3i quang \u0111a mode (MMF)<\/p><\/li>\n\n\n\n<li><p>Kho\u1ea3ng c\u00e1ch \u0111i\u1ec3n h\u00ecnh: l\u00ean t\u1edbi ~300m (ph\u1ee5 thu\u1ed9c v\u00e0o c\u1ea5p \u0111\u1ed9 s\u1ee3i)<\/p><\/li>\n\n\n\n<li><p>Tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng:<\/p>\n<ul class=\"wp-block-list\">\n<li><p>K\u1ebft n\u1ed1i switch-to-switch t\u1ea7m ng\u1eafn<\/p><\/li>\n\n\n\n<li><p>Li\u00ean k\u1ebft rack-to-rack b\u00ean trong trung t\u00e2m d\u1eef li\u1ec7u<\/p><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Ph\u00f9 h\u1ee3p nh\u1ea5t cho<\/strong>: c\u00e1c li\u00ean k\u1ebft 10G m\u1eadt \u0111\u1ed9 cao, t\u1ea7m ng\u1eafn, chi ph\u00ed th\u1ea5p<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">\ud83d\udd39 <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/475586.htm\">SFP+ LR<\/a> (Ph\u1ea1m vi xa)<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>B\u01b0\u1edbc s\u00f3ng: 1310nm<\/p><\/li>\n\n\n\n<li><p>Lo\u1ea1i s\u1ee3i: S\u1ee3i quang \u0111\u01a1n mode (SMF)<\/p><\/li>\n\n\n\n<li><p>Kho\u1ea3ng c\u00e1ch \u0111i\u1ec3n h\u00ecnh: t\u1ed1i \u0111a 10 km<\/p><\/li>\n\n\n\n<li><p>Tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng:<\/p>\n<ul class=\"wp-block-list\">\n<li><p>M\u1ea1ng khu\u00f4n vi\u00ean<\/p><\/li>\n\n\n\n<li><p>K\u1ebft n\u1ed1i gi\u1eefa c\u00e1c t\u00f2a nh\u00e0<\/p><\/li>\n\n\n\n<li><p>Li\u00ean k\u1ebft x\u01b0\u01a1ng s\u1ed1ng vi\u1ec5n th\u00f4ng v\u00e0 doanh nghi\u1ec7p<\/p><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Ph\u00f9 h\u1ee3p nh\u1ea5t cho<\/strong>: truy\u1ec1n d\u1eabn kho\u1ea3ng c\u00e1ch xa, \u1ed5n \u0111\u1ecbnh, t\u1ed5n hao th\u1ea5p<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u0110\u1ed3ng tr\u1ee5c g\u1eafn tr\u1ef1c ti\u1ebfp SFP+ (DAC)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/direct-attach-cables-dac-in-networking\/\">c\u00e1p DAC<\/a> l\u00e0 gi\u1ea3i ph\u00e1p thay th\u1ebf ti\u1ebft ki\u1ec7m chi ph\u00ed v\u00e0 \u0111\u1ed9 tr\u1ec5 th\u1ea5p so v\u1edbi module s\u1ee3i quang. Ch\u00fang bao g\u1ed3m c\u00e1p \u0111\u1ed3ng c\u1ed1 \u0111\u1ecbnh v\u1edbi \u0111\u1ea7u n\u1ed1i SFP+ \u0111\u01b0\u1ee3c g\u1eafn v\u0129nh vi\u1ec5n \u1edf c\u1ea3 hai \u0111\u1ea7u.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u0110\u1eb7c \u0111i\u1ec3m ch\u00ednh:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>T\u1ed1c \u0111\u1ed9: 10Gbps<\/p><\/li>\n\n\n\n<li><p>Kho\u1ea3ng c\u00e1ch: th\u01b0\u1eddng t\u1eeb 1\u20137 m\u00e9t (lo\u1ea1i th\u1ee5 \u0111\u1ed9ng), l\u00ean t\u1edbi ~10m (DAC ch\u1ee7 \u0111\u1ed9ng)<\/p><\/li>\n\n\n\n<li><p>Ti\u00eau th\u1ee5 \u0111i\u1ec7n n\u0103ng r\u1ea5t th\u1ea5p<\/p><\/li>\n\n\n\n<li><p>\u0110\u1ed9 tr\u1ec5 t\u1ed1i thi\u1ec3u so v\u1edbi module quang<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u01afu \u0111i\u1ec3m:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Chi ph\u00ed th\u1ea5p nh\u1ea5t tr\u00ean m\u1ed7i li\u00ean k\u1ebft 10G<\/p><\/li>\n\n\n\n<li><p>\u0110\u01a1n gi\u1ea3n h\u00f3a c\u1eafm v\u00e0 ch\u1ea1y<\/p><\/li>\n\n\n\n<li><p>Kh\u00f4ng c\u1ea7n b\u1ed9 thu ph\u00e1t quang<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>H\u1ea1n ch\u1ebf:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Ch\u1ec9 ph\u00f9 h\u1ee3p cho kho\u1ea3ng c\u00e1ch ng\u1eafn<\/p><\/li>\n\n\n\n<li><p>C\u00e1p kh\u00f4ng th\u1ec3 th\u00e1o r\u1eddi kh\u1ecfi module<\/p><\/li>\n\n\n\n<li><p>Linh ho\u1ea1t h\u1ea1n ch\u1ebf trong m\u00f4i tr\u01b0\u1eddng c\u00e1p c\u1ea5u tr\u00fac<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Ph\u00f9 h\u1ee3p nh\u1ea5t cho<\/strong>: k\u1ebft n\u1ed1i rack-to-rack b\u00ean trong c\u00f9ng m\u1ed9t t\u1ee7 ho\u1eb7c c\u00e1c t\u1ee7 li\u1ec1n k\u1ec1<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Module \u0111\u1ed3ng\/RJ45 SFP+ (10GBASE-T)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/491619.htm\">Module SFP+ RJ45<\/a> cho ph\u00e9p k\u1ebft n\u1ed1i 10GbE qua c\u00e1p Ethernet \u0111\u1ed3ng ti\u00eau chu\u1ea9n (Cat6a\/Cat7).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u0110\u1eb7c \u0111i\u1ec3m ch\u00ednh:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Chu\u1ea9n: 10GBASE-T<\/p><\/li>\n\n\n\n<li><p>Lo\u1ea1i c\u00e1p: Ethernet \u0111\u1ed3ng RJ45<\/p><\/li>\n\n\n\n<li><p>Kho\u1ea3ng c\u00e1ch \u0111i\u1ec3n h\u00ecnh:<\/p>\n<ul class=\"wp-block-list\">\n<li><p>T\u1ed1i \u0111a 30 m (Cat6)<\/p><\/li>\n\n\n\n<li><p>T\u1ed1i \u0111a 100 m (Cat6a\/Cat7)<\/p><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u01afu \u0111i\u1ec3m:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>S\u1eed d\u1ee5ng c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng c\u00e1p Ethernet hi\u1ec7n c\u00f3<\/p><\/li>\n\n\n\n<li><p>N\u00e2ng c\u1ea5p d\u1ec5 d\u00e0ng t\u1eeb 1G l\u00ean 10G<\/p><\/li>\n\n\n\n<li><p>Kh\u00f4ng y\u00eau c\u1ea7u c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng c\u00e1p quang<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>H\u1ea1n ch\u1ebf:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Ti\u00eau th\u1ee5 n\u0103ng l\u01b0\u1ee3ng cao h\u01a1n<\/p><\/li>\n\n\n\n<li><p>Ph\u00e1t sinh nhi\u1ec1u nhi\u1ec7t h\u01a1n<\/p><\/li>\n\n\n\n<li><p>\u0110\u1ed9 tr\u1ec5 cao h\u01a1n so v\u1edbi c\u00e1p quang v\u00e0 DAC<\/p><\/li>\n\n\n\n<li><p>Kh\u00f4ng \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3 b\u1edfi t\u1ea5t c\u1ea3 c\u00e1c c\u1ed5ng SFP+<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Ph\u00f9 h\u1ee3p nh\u1ea5t cho<\/strong>: m\u1ea1ng v\u0103n ph\u00f2ng, n\u00e2ng c\u1ea5p c\u1ea3i t\u1ea1o v\u00e0 m\u00f4i tr\u01b0\u1eddng kh\u00f4ng c\u00f3 c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng c\u00e1p quang<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Khi n\u00e0o n\u00ean ch\u1ecdn t\u1eebng lo\u1ea1i SFP+<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c l\u1ef1a ch\u1ecdn m\u00f4-\u0111un ph\u00f9 h\u1ee3p ph\u1ee5 thu\u1ed9c v\u00e0o kho\u1ea3ng c\u00e1ch, m\u00f4i tr\u01b0\u1eddng, chi ph\u00ed v\u00e0 y\u00eau c\u1ea7u hi\u1ec7u n\u0103ng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u2714 Ch\u1ecdn <\/strong><a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/475415.htm\"><strong>10GBASE-SR<\/strong><\/a><strong> (c\u00e1p quang) n\u1ebfu:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Thi\u1ebft b\u1ecb n\u1eb1m trong c\u00f9ng m\u1ed9t t\u1ee7 ho\u1eb7c c\u00e1c t\u1ee7 g\u1ea7n nhau<\/p><\/li>\n\n\n\n<li><p>B\u1ea1n c\u1ea7n ki\u1ebfn tr\u00fac trung t\u00e2m d\u1eef li\u1ec7u c\u00f3 kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng<\/p><\/li>\n\n\n\n<li><p>\u0110\u1ed9 tr\u1ec5 th\u1ea5p v\u00e0 m\u1eadt \u0111\u1ed9 cao l\u00e0 \u01b0u ti\u00ean h\u00e0ng \u0111\u1ea7u<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u2714 Ch\u1ecdn <\/strong><a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/475586.htm\"><strong>10GBASE-LR<\/strong><\/a><strong> (c\u00e1p quang) n\u1ebfu:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>B\u1ea1n c\u1ea7n truy\u1ec1n d\u1eabn kho\u1ea3ng c\u00e1ch xa (l\u00ean \u0111\u1ebfn 10 km)<\/p><\/li>\n\n\n\n<li><p>B\u1ea1n \u0111ang x\u00e2y d\u1ef1ng m\u1ea1ng khu\u00f4n vi\u00ean ho\u1eb7c m\u1ea1ng l\u00f5i<\/p><\/li>\n\n\n\n<li><p>\u0110\u1ed9 \u1ed5n \u0111\u1ecbnh v\u00e0 \u0111\u1ed9 nguy\u00ean v\u1eb9n t\u00edn hi\u1ec7u l\u00e0 y\u1ebfu t\u1ed1 then ch\u1ed1t<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u2714 Ch\u1ecdn DAC n\u1ebfu:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Kho\u1ea3ng c\u00e1ch k\u1ebft n\u1ed1i ng\u1eafn (\u226410 m)<\/p><\/li>\n\n\n\n<li><p>B\u1ea1n mu\u1ed1n chi ph\u00ed th\u1ea5p nh\u1ea5t cho m\u1ed7i k\u1ebft n\u1ed1i 10G<\/p><\/li>\n\n\n\n<li><p>B\u1ea1n \u0111ang k\u1ebft n\u1ed1i m\u00e1y ch\u1ee7 v\u00e0 switch trong c\u00f9ng m\u1ed9t t\u1ee7<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u2714 Ch\u1ecdn <\/strong><a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/476044.htm\"><strong>SFP+ RJ45<\/strong><\/a><strong> n\u1ebfu:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>B\u1ea1n \u0111\u00e3 c\u00f3 c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng c\u00e1p \u0111\u1ed3ng<\/p><\/li>\n\n\n\n<li><p>B\u1ea1n c\u1ea7n ph\u1ea1m vi l\u00ean \u0111\u1ebfn 100 m<\/p><\/li>\n\n\n\n<li><p>B\u1ea1n \u0111ang n\u00e2ng c\u1ea5p t\u1eeb Ethernet 1G m\u00e0 kh\u00f4ng c\u1ea7n \u0111i l\u1ea1i c\u00e1p<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Kh\u00f4ng t\u1ed3n t\u1ea1i \u201cm\u00f4-\u0111un SFP+ t\u1ed1t nh\u1ea5t\u201d\u2014ch\u1ec9 c\u00f3 m\u00f4-\u0111un ph\u00f9 h\u1ee3p nh\u1ea5t cho t\u1eebng tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>C\u00e1p quang = linh ho\u1ea1t + kho\u1ea3ng c\u00e1ch<\/p><\/li>\n\n\n\n<li><p>DAC = chi ph\u00ed th\u1ea5p + \u0111\u1ed9 tr\u1ec5 th\u1ea5p<\/p><\/li>\n\n\n\n<li><p>RJ45 = ti\u1ec7n l\u1ee3i + t\u01b0\u01a1ng th\u00edch v\u1edbi c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng k\u1ebf th\u1eeba<\/p><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\ud83d\udd35 C\u00e1c s\u1ef1 c\u1ed1 SFP+ th\u01b0\u1eddng g\u1eb7p v\u00e0 c\u00e1ch kh\u1eafc ph\u1ee5c<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1eb7c d\u00f9 Small Form-factor Pluggable Plus (SFP+) \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 tri\u1ec3n khai \u201cc\u1eafm v\u00e0o l\u00e0 ch\u1ea1y\u201d, th\u1ef1c t\u1ebf s\u1eed d\u1ee5ng th\u01b0\u1eddng kh\u00e1c bi\u1ec7t. Nhi\u1ec1u ng\u01b0\u1eddi d\u00f9ng g\u1eb7p ph\u1ea3i c\u00e1c s\u1ef1 c\u1ed1 nh\u01b0 kh\u00f4ng c\u00f3 li\u00ean k\u1ebft, kh\u00f4ng ph\u00e1t hi\u1ec7n \u0111\u01b0\u1ee3c m\u00f4-\u0111un, sai t\u1ed1c \u0111\u1ed9 ho\u1eb7c qu\u00e1 nhi\u1ec7t\u2014ph\u1ea7n l\u1edbn c\u00e1c s\u1ef1 c\u1ed1 n\u00e0y kh\u00f4ng do l\u1ed7i ph\u1ea7n c\u1ee9ng, m\u00e0 do thi\u1ebfu t\u01b0\u01a1ng th\u00edch ho\u1eb7c c\u1ea5u h\u00ecnh sai.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ph\u1ea7n n\u00e0y ph\u00e2n t\u00edch c\u00e1c s\u1ef1 c\u1ed1 SFP+ ph\u1ed5 bi\u1ebfn nh\u1ea5t v\u00e0 cung c\u1ea5p c\u00e1c b\u01b0\u1edbc g\u1ee1 l\u1ed7i th\u1ef1c t\u1ebf \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng trong c\u00e1c m\u00f4i tr\u01b0\u1eddng m\u1ea1ng th\u1ef1c t\u1ebf.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1200\" height=\"675\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/47252932bb9940ee9212921c4b521e67.jpg\" alt=\"Common SFP+ Problems and How to Fix Them\" class=\"wp-image-2884\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/47252932bb9940ee9212921c4b521e67.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/47252932bb9940ee9212921c4b521e67-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/47252932bb9940ee9212921c4b521e67-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/47252932bb9940ee9212921c4b521e67-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/47252932bb9940ee9212921c4b521e67-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">\u274c 1. \u0110\u00e8n li\u00ean k\u1ebft kh\u00f4ng s\u00e1ng (s\u1ef1 c\u1ed1 ph\u1ed5 bi\u1ebfn nh\u1ea5t)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">T\u00ecnh tr\u1ea1ng \u201ckh\u00f4ng c\u00f3 \u0111\u00e8n li\u00ean k\u1ebft\u201d ngh\u0129a l\u00e0 m\u00f4-\u0111un SFP+ \u0111\u00e3 \u0111\u01b0\u1ee3c c\u1ea5p ngu\u1ed3n nh\u01b0ng ch\u01b0a thi\u1ebft l\u1eadp k\u1ebft n\u1ed1i ho\u1ea1t \u0111\u1ed9ng gi\u1eefa c\u00e1c thi\u1ebft b\u1ecb.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Nguy\u00ean nh\u00e2n th\u01b0\u1eddng g\u1eb7p:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Lo\u1ea1i s\u1ee3i quang kh\u00f4ng \u0111\u00fang (<a href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/smf-optical-transceiver-vs-mmf-optical-transceiver-guide\/\" target=\"_self\">MMF so v\u1edbi SMF<\/a> kh\u00f4ng kh\u1edbp)<\/p><\/li>\n\n\n\n<li><p>C\u1eb7p b\u01b0\u1edbc s\u00f3ng sai (<a href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/sfp-10g-sr-vs-sfp-10g-lr-key-differences\/\" target=\"_blank\" rel=\"\">SR so v\u1edbi LR<\/a> kh\u00f4ng kh\u1edbp)<\/p><\/li>\n\n\n\n<li><p>C\u00e1p DAC kh\u00f4ng \u0111\u01b0\u1ee3c thi\u1ebft b\u1ecb h\u1ed7 tr\u1ee3<\/p><\/li>\n\n\n\n<li><p>C\u1ed5ng b\u1ecb v\u00f4 hi\u1ec7u h\u00f3a ho\u1eb7c b\u1ecb t\u1eaft th\u1ee7 c\u00f4ng<\/p><\/li>\n\n\n\n<li><p>\u0110\u1ea7u n\u1ed1i c\u00e1p quang b\u1ecb b\u1ea9n ho\u1eb7c h\u01b0 h\u1ecfng<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>C\u00e1ch kh\u1eafc ph\u1ee5c:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>X\u00e1c minh c\u1ea3 hai \u0111\u1ea7u s\u1eed d\u1ee5ng c\u00f9ng lo\u1ea1i m\u00f4-\u0111un (v\u00ed d\u1ee5: SR \u2194 SR)<\/p><\/li>\n\n\n\n<li><p>\u0110\u1ea3m b\u1ea3o \u0111\u1ed9 ph\u00e2n c\u1ef1c s\u1ee3i quang \u0111\u00fang (Tx\/Rx \u0111\u01b0\u1ee3c ho\u00e1n \u0111\u1ed5i ch\u00ednh x\u00e1c)<\/p><\/li>\n\n\n\n<li><p>Ki\u1ec3m tra tr\u1ea1ng th\u00e1i c\u1ed5ng chuy\u1ec3n m\u1ea1ch (k\u00edch ho\u1ea1t giao di\u1ec7n)<\/p><\/li>\n\n\n\n<li><p>L\u00e0m s\u1ea1ch \u0111\u1ea7u n\u1ed1i s\u1ee3i quang b\u1eb1ng c\u00e1c c\u00f4ng c\u1ee5 ph\u00f9 h\u1ee3p<\/p><\/li>\n\n\n\n<li><p>Thay c\u00e1p DAC ho\u1eb7c m\u00f4-\u0111un n\u1ebfu c\u1ea7n thi\u1ebft<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Nh\u1eadn x\u00e9t quan tr\u1ecdng: Ph\u1ea7n l\u1edbn s\u1ef1 c\u1ed1 \u201ckh\u00f4ng c\u00f3 k\u1ebft n\u1ed1i\u201d l\u00e0 do sai l\u1ec7ch v\u1eadt l\u00fd \u1edf t\u1ea7ng 1<strong>s<\/strong>, ch\u1ee9 kh\u00f4ng ph\u1ea3i do l\u1ed7i ph\u1ea7n c\u1ee9ng.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u274c 2. M\u00f4-\u0111un kh\u00f4ng \u0111\u01b0\u1ee3c nh\u1eadn d\u1ea1ng<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">T\u00ecnh hu\u1ed1ng n\u00e0y x\u1ea3y ra khi thi\u1ebft b\u1ecb ho\u00e0n to\u00e0n kh\u00f4ng ph\u00e1t hi\u1ec7n th\u1ea5y m\u00f4-\u0111un SFP+.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Nguy\u00ean nh\u00e2n th\u01b0\u1eddng g\u1eb7p:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>M\u00f4-\u0111un m\u00e3 h\u00f3a theo nh\u00e0 cung c\u1ea5p b\u1ecb ch\u1eb7n b\u1edfi firmware<\/p><\/li>\n\n\n\n<li><p>M\u00e3 \u0111\u1ecbnh danh EEPROM kh\u00f4ng t\u01b0\u01a1ng th\u00edch<\/p><\/li>\n\n\n\n<li><p>Lo\u1ea1i b\u1ed9 thu ph\u00e1t kh\u00f4ng \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3<\/p><\/li>\n\n\n\n<li><p>M\u00f4-\u0111un b\u1ea9n ho\u1eb7c l\u1eafp kh\u00f4ng \u0111\u00fang c\u00e1ch<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>C\u00e1ch kh\u1eafc ph\u1ee5c:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>C\u1eafm l\u1ea1i m\u00f4-\u0111un ch\u1eafc ch\u1eafn v\u00e0o c\u1ed5ng<\/p><\/li>\n\n\n\n<li><p>Ki\u1ec3m tra nh\u1eadt k\u00fd thi\u1ebft b\u1ecb \u0111\u1ec3 t\u00ecm th\u00f4ng b\u00e1o \u201cb\u1ed9 thu ph\u00e1t kh\u00f4ng \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3\u201d<\/p><\/li>\n\n\n\n<li><p>S\u1eed d\u1ee5ng m\u00f4-\u0111un t\u01b0\u01a1ng th\u00edch v\u1edbi nh\u00e0 cung c\u1ea5p ho\u1eb7c \u0111\u00e3 \u0111\u01b0\u1ee3c m\u00e3 h\u00f3a ph\u00f9 h\u1ee3p<\/p><\/li>\n\n\n\n<li><p>C\u1eadp nh\u1eadt firmware c\u1ee7a b\u1ed9 chuy\u1ec3n m\u1ea1ch\/b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn n\u1ebfu c\u00f3 th\u1ec3 \u00e1p d\u1ee5ng<\/p><\/li>\n\n\n\n<li><p>Ki\u1ec3m tra m\u00f4-\u0111un tr\u00ean m\u1ed9t thi\u1ebft b\u1ecb kh\u00e1c \u0111\u00e3 bi\u1ebft l\u00e0 t\u01b0\u01a1ng th\u00edch<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Nh\u1eadn x\u00e9t quan tr\u1ecdng: \u0110\u00e2y th\u01b0\u1eddng l\u00e0 v\u1ea5n \u0111\u1ec1 h\u1ea1n ch\u1ebf v\u1ec1 ph\u1ea7n m\u1ec1m\/firmware, ch\u1ee9 kh\u00f4ng ph\u1ea3i do l\u1ed7i v\u1eadt l\u00fd.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u274c 3. Sai l\u1ec7ch t\u1ed1c \u0111\u1ed9 (v\u1ea5n \u0111\u1ec1 1G so v\u1edbi 10G)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c c\u1ed5ng SFP+ \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf ch\u1ee7 y\u1ebfu cho ho\u1ea1t \u0111\u1ed9ng \u1edf t\u1ed1c \u0111\u1ed9 10 Gbps, nh\u01b0ng kh\u00f4ng ph\u1ea3i t\u1ea5t c\u1ea3 thi\u1ebft b\u1ecb \u0111\u1ec1u h\u1ed7 tr\u1ee3 th\u01b0\u01a1ng l\u01b0\u1ee3ng t\u1ed1c \u0111\u1ed9 \u0111a m\u1ee9c.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Nguy\u00ean nh\u00e2n th\u01b0\u1eddng g\u1eb7p:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>M\u00f4-\u0111un SFP 1G \u0111\u01b0\u1ee3c c\u1eafm v\u00e0o c\u1ed5ng ch\u1ec9 h\u1ed7 tr\u1ee3 10G<\/p><\/li>\n\n\n\n<li><p>M\u00f4-\u0111un SFP+ b\u1ecb \u00e9p ch\u1ea1y \u1edf t\u1ed1c \u0111\u1ed9 sai<\/p><\/li>\n\n\n\n<li><p>Kh\u00f4ng h\u1ed7 tr\u1ee3 th\u01b0\u01a1ng l\u01b0\u1ee3ng t\u1ef1 \u0111\u1ed9ng<\/p><\/li>\n\n\n\n<li><p>Thi\u1ebft k\u1ebf m\u1ea1ng h\u1ed7n h\u1ee3p t\u1ed1c \u0111\u1ed9<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>C\u00e1ch kh\u1eafc ph\u1ee5c:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>X\u00e1c nh\u1eadn c\u1ed5ng h\u1ed7 tr\u1ee3 t\u1ed1c \u0111\u1ed9 y\u00eau c\u1ea7u (1G \/ 10G \/ \u0111a m\u1ee9c)<\/p><\/li>\n\n\n\n<li><p>Thi\u1ebft l\u1eadp th\u1ee7 c\u00f4ng t\u1ed1c \u0111\u1ed9 giao di\u1ec7n n\u1ebfu \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3<\/p><\/li>\n\n\n\n<li><p>Thay th\u1ebf c\u00e1c m\u00f4-\u0111un 1G\/10G kh\u00f4ng t\u01b0\u01a1ng th\u00edch<\/p><\/li>\n\n\n\n<li><p>\u0110\u1ea3m b\u1ea3o kh\u1ea3 n\u0103ng t\u1ed1c \u0111\u1ed9 c\u1ee7a c\u1ea3 hai \u0111\u1ea7u k\u1ebft n\u1ed1i kh\u1edbp nhau<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Nh\u1eadn x\u00e9t quan tr\u1ecdng: SFP+ kh\u00f4ng lu\u00f4n th\u1ef1c hi\u1ec7n th\u01b0\u01a1ng l\u01b0\u1ee3ng t\u1ef1 \u0111\u1ed9ng nh\u01b0 Ethernet RJ45, do \u0111\u00f3 th\u01b0\u1eddng c\u1ea7n x\u00e1c minh th\u1ee7 c\u00f4ng.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u274c 4. V\u1ea5n \u0111\u1ec1 nhi\u1ec7t v\u00e0 \u0111i\u1ec7n n\u0103ng (\u0111\u1eb7c bi\u1ec7t v\u1edbi SFP+ RJ45)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c m\u00f4-\u0111un SFP+ RJ45 (10GBASE-T) ti\u00eau th\u1ee5 \u0111i\u1ec7n n\u0103ng cao h\u01a1n \u0111\u00e1ng k\u1ec3 so v\u1edbi m\u00f4-\u0111un s\u1ee3i quang ho\u1eb7c DAC.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Nguy\u00ean nh\u00e2n th\u01b0\u1eddng g\u1eb7p:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>L\u01b0\u1ee3ng \u0111i\u1ec7n ti\u00eau th\u1ee5 cao (l\u00ean t\u1edbi v\u00e0i watt m\u1ed7i m\u00f4-\u0111un)<\/p><\/li>\n\n\n\n<li><p>L\u01b0u th\u00f4ng kh\u00ed k\u00e9m trong m\u00f4i tr\u01b0\u1eddng c\u00f4ng t\u1eafc d\u00e0y \u0111\u1eb7c<\/p><\/li>\n\n\n\n<li><p>M\u00f4-\u0111un ti\u00eau th\u1ee5 \u0111i\u1ec7n cao kh\u00f4ng \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3 tr\u00ean c\u1ed5ng c\u00f3 gi\u1edbi h\u1ea1n \u0111i\u1ec7n n\u0103ng th\u1ea5p<\/p><\/li>\n\n\n\n<li><p>T\u1ea3i truy\u1ec1n d\u1eabn \u0111\u1ed3ng li\u00ean t\u1ee5c \u1edf t\u1ed1c \u0111\u1ed9 10G<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>C\u00e1ch kh\u1eafc ph\u1ee5c:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>C\u1ea3i thi\u1ec7n th\u00f4ng gi\u00f3 ho\u1eb7c thi\u1ebft k\u1ebf lu\u1ed3ng kh\u00ed cho b\u1ed9 chuy\u1ec3n m\u1ea1ch<\/p><\/li>\n\n\n\n<li><p>H\u1ea1n ch\u1ebf s\u1eed d\u1ee5ng <a href=\"https:\/\/www.l-p.com\/products\/482687.htm\" target=\"_self\">Module SFP+ RJ45<\/a> trong c\u00e1c c\u1ea5u h\u00ecnh m\u1eadt \u0111\u1ed9 cao<\/p><\/li>\n\n\n\n<li><p>Chuy\u1ec3n sang s\u1eed d\u1ee5ng s\u1ee3i quang ho\u1eb7c DAC cho c\u00e1c k\u1ebft n\u1ed1i hi\u1ec7u n\u0103ng cao<\/p><\/li>\n\n\n\n<li><p>Ki\u1ec3m tra ng\u00e2n s\u00e1ch \u0111i\u1ec7n n\u0103ng c\u1ee7a khoang SFP+ tr\u00ean b\u1ed9 chuy\u1ec3n m\u1ea1ch<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Nh\u1eadn x\u00e9t quan tr\u1ecdng: C\u00e1c m\u00f4-\u0111un SFP+ RJ45 r\u1ea5t ti\u1ec7n l\u1ee3i nh\u01b0ng t\u1ed1n k\u00e9m v\u1ec1 m\u1eb7t nhi\u1ec7t.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\ud83e\uddf0 Danh s\u00e1ch ki\u1ec3m tra nhanh s\u1ef1 c\u1ed1 SFP+<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Tr\u01b0\u1edbc khi thay th\u1ebf ph\u1ea7n c\u1ee9ng, h\u00e3y th\u1ef1c hi\u1ec7n theo danh s\u00e1ch ki\u1ec3m tra n\u00e0y:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2714 Lo\u1ea1i m\u00f4-\u0111un c\u00f3 \u0111\u01b0\u1ee3c thi\u1ebft b\u1ecb h\u1ed7 tr\u1ee3 kh\u00f4ng?<br>\u2714 C\u1ea3 hai \u0111\u1ea7u c\u00f3 \u0111ang s\u1eed d\u1ee5ng c\u00e1c b\u1ed9 thu ph\u00e1t ph\u00f9 h\u1ee3p (SR\/LR\/DAC) kh\u00f4ng?<br>\u2714 Lo\u1ea1i c\u00e1p quang \u0111\u00fang \u0111\u00e3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng ch\u01b0a (MMF so v\u1edbi SMF)?<br>\u2714 C\u1ed5ng \u0111\u00e3 \u0111\u01b0\u1ee3c b\u1eadt v\u00e0 c\u1ea5u h\u00ecnh \u0111\u00fang ch\u01b0a?<br>\u2714 M\u00f4-\u0111un c\u00f3 t\u01b0\u01a1ng th\u00edch nh\u00e0 cung c\u1ea5p ho\u1eb7c \u0111\u01b0\u1ee3c m\u00e3 h\u00f3a \u0111\u00fang c\u00e1ch kh\u00f4ng?<br>\u2714 T\u1ed1c \u0111\u1ed9 k\u1ebft n\u1ed1i c\u00f3 \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3 \u1edf c\u1ea3 hai \u0111\u1ea7u kh\u00f4ng?<br>\u2714 M\u00f4-\u0111un c\u00f3 b\u1ecb qu\u00e1 nhi\u1ec7t ho\u1eb7c v\u01b0\u1ee3t gi\u1edbi h\u1ea1n c\u00f4ng su\u1ea5t kh\u00f4ng?<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ud83d\udc49 Ph\u1ea7n l\u1edbn s\u1ef1 c\u1ed1 SFP+ kh\u00f4ng ph\u1ea3i do l\u1ed7i ph\u1ea7n c\u1ee9ng\u2014m\u00e0 do s\u1ef1 kh\u00f4ng t\u01b0\u01a1ng th\u00edch ho\u1eb7c sai l\u1ec7ch c\u1ea5u h\u00ecnh.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">B\u1eb1ng c\u00e1ch ki\u1ec3m tra m\u1ed9t c\u00e1ch h\u1ec7 th\u1ed1ng:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>L\u1edbp v\u1eadt l\u00fd (lo\u1ea1i c\u00e1p\/m\u00f4-\u0111un)<\/p><\/li>\n\n\n\n<li><p>L\u1edbp t\u01b0\u01a1ng th\u00edch (nh\u00e0 cung c\u1ea5p + firmware)<\/p><\/li>\n\n\n\n<li><p>L\u1edbp c\u1ea5u h\u00ecnh (t\u1ed1c \u0111\u1ed9 + c\u00e0i \u0111\u1eb7t c\u1ed5ng)<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">B\u1ea1n c\u00f3 th\u1ec3 gi\u1ea3i quy\u1ebft ph\u1ea7n l\u1edbn s\u1ef1 c\u1ed1 m\u00e0 kh\u00f4ng c\u1ea7n thay th\u1ebf thi\u1ebft b\u1ecb.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\ud83d\udd35 C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p v\u1ec1 t\u00ednh t\u01b0\u01a1ng th\u00edch SFP+<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Ph\u1ea7n C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p n\u00e0y gi\u1ea3i \u0111\u00e1p nh\u1eefng c\u00e2u h\u1ecfi th\u1ef1c t\u1ebf ph\u1ed5 bi\u1ebfn nh\u1ea5t v\u1ec1 t\u00ednh t\u01b0\u01a1ng th\u00edch c\u1ee7a Small Form-factor Pluggable Plus (SFP+), d\u1ef1a tr\u00ean c\u00e1c v\u1ea5n \u0111\u1ec1 tri\u1ec3n khai th\u1ef1c t\u1ebf, xu h\u01b0\u1edbng t\u00ecm ki\u1ebfm v\u00e0 m\u00f4 h\u00ecnh g\u1ee1 l\u1ed7i c\u1ee7a ng\u01b0\u1eddi d\u00f9ng. M\u1ee5c ti\u00eau l\u00e0 gi\u00fap b\u1ea1n nhanh ch\u00f3ng l\u00e0m r\u00f5 nghi v\u1ea5n v\u00e0 tr\u00e1nh nh\u1eefng sai l\u1ea7m khi mua s\u1eafm.<\/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\/bcd22ee854ba4c7f8de977a8f9772237.jpg\" alt=\"SFP+ Compatibility FAQ\" class=\"wp-image-2885\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/bcd22ee854ba4c7f8de977a8f9772237.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/bcd22ee854ba4c7f8de977a8f9772237-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/bcd22ee854ba4c7f8de977a8f9772237-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/bcd22ee854ba4c7f8de977a8f9772237-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/bcd22ee854ba4c7f8de977a8f9772237-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">T\u00ednh t\u01b0\u01a1ng th\u00edch SFP+ l\u00e0 <strong>kh\u00f4ng ph\u1ed5 qu\u00e1t\u2014m\u00e0 mang t\u00ednh \u0111i\u1ec1u ki\u1ec7n v\u00e0 ph\u1ee5 thu\u1ed9c v\u00e0o thi\u1ebft b\u1ecb.<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">H\u1ea7u h\u1ebft s\u1ef1 c\u1ed1 b\u1eaft ngu\u1ed3n t\u1eeb:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>M\u00e3 h\u00f3a theo nh\u00e0 s\u1ea3n xu\u1ea5t<\/p><\/li>\n\n\n\n<li><p>Kh\u00f4ng kh\u1edbp t\u1ed1c \u0111\u1ed9<\/p><\/li>\n\n\n\n<li><p>S\u1ef1 kh\u00f4ng t\u01b0\u01a1ng th\u00edch lo\u1ea1i ph\u01b0\u01a1ng ti\u1ec7n truy\u1ec1n d\u1eabn<\/p><\/li>\n\n\n\n<li><p>Firmware restrictions<\/p><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u2753 1. Li\u1ec7u t\u1ea5t c\u1ea3 c\u00e1c m\u00f4-\u0111un SFP+ \u0111\u1ec1u t\u01b0\u01a1ng th\u00edch v\u1edbi m\u1ecdi switch?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Kh\u00f4ng.<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">D\u00f9 c\u00e1c m\u00f4-\u0111un SFP+ chia s\u1ebb c\u00f9ng m\u1ed9t y\u1ebfu t\u1ed1 h\u00ecnh d\u1ea1ng v\u1eadt l\u00fd chu\u1ea9n h\u00f3a, t\u00ednh t\u01b0\u01a1ng th\u00edch c\u00f2n ph\u1ee5 thu\u1ed9c v\u00e0o:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Thi\u1ebft k\u1ebf ph\u1ea7n c\u1ee9ng c\u1ee7a switch ho\u1eb7c router<\/p><\/li>\n\n\n\n<li><p>H\u1ea1n ch\u1ebf firmware (m\u00e3 h\u00f3a theo nh\u00e0 cung c\u1ea5p)<\/p><\/li>\n\n\n\n<li><p>C\u00e1c t\u1ed1c \u0111\u1ed9 \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3 (1G \/ 10G \/ \u0111a t\u1ed1c \u0111\u1ed9)<\/p><\/li>\n\n\n\n<li><p>Lo\u1ea1i m\u00f4-\u0111un (s\u1ee3i quang, DAC, RJ45)<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c v\u1eeba kh\u00edt v\u1ec1 m\u1eb7t v\u1eadt l\u00fd kh\u00f4ng \u0111\u1ea3m b\u1ea3o t\u00ednh t\u01b0\u01a1ng th\u00edch ch\u1ee9c n\u0103ng.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u2753 2. T\u00f4i c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng m\u00f4-\u0111un SFP trong c\u1ed5ng SFP+ kh\u00f4ng?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Th\u01b0\u1eddng th\u00ec c\u00f3\u2014nh\u01b0ng kh\u00f4ng ph\u1ea3i l\u00fac n\u00e0o c\u0169ng v\u1eady.<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u1ede nhi\u1ec1u thi\u1ebft b\u1ecb, c\u1ed5ng SFP+ c\u00f3 th\u1ec3 h\u1ed7 tr\u1ee3 <a target=\"_self\" href=\"https:\/\/www.l-p.com\/store-26155-1g-sfp.htm\">Tr\u00ean nhi\u1ec1u thi\u1ebft b\u1ecb m\u1ea1ng hi\u1ec7n \u0111\u1ea1i, c\u00e1c c\u1ed5ng SFP+ h\u1ed7 tr\u1ee3 t\u01b0\u01a1ng th\u00edch ng\u01b0\u1ee3c v\u1edbi<\/a>, nh\u01b0ng ch\u1ec9 khi:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>C\u1ed5ng h\u1ed7 tr\u1ee3 gi\u1ea3m t\u1ed1c xu\u1ed1ng 1G<\/p><\/li>\n\n\n\n<li><p>Firmware cho ph\u00e9p ho\u1ea1t \u0111\u1ed9ng \u1edf t\u1ed1c \u0111\u1ed9 th\u1ea5p h\u01a1n<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Tuy nhi\u00ean, m\u1ed9t s\u1ed1 c\u1ed5ng SFP+ ch\u1ec9 h\u1ed7 tr\u1ee3 10G, ngh\u0129a l\u00e0:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>\u274c M\u00f4-\u0111un SFP 1G s\u1ebd kh\u00f4ng ho\u1ea1t \u0111\u1ed9ng<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Lu\u00f4n ki\u1ec3m tra t\u00e0i li\u1ec7u thi\u1ebft b\u1ecb tr\u01b0\u1edbc khi gi\u1ea3 \u0111\u1ecbnh t\u00ednh t\u01b0\u01a1ng th\u00edch.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u2753 3. T\u00f4i c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng m\u00f4-\u0111un SFP+ trong c\u1ed5ng SFP kh\u00f4ng?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>N\u00f3i chung l\u00e0 kh\u00f4ng.<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c c\u1ed5ng SFP \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf cho t\u1ed1c \u0111\u1ed9 1G (Gigabit Ethernet), trong khi c\u00e1c module SFP+ \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf cho t\u00edn hi\u1ec7u 10G.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1eb7c d\u00f9 c\u00e1c module tr\u00f4ng gi\u1ed1ng h\u1ec7t nhau:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Giao di\u1ec7n \u0111i\u1ec7n kh\u00e1c nhau<\/p><\/li>\n\n\n\n<li><p>C\u00e1c c\u1ed5ng SFP th\u01b0\u1eddng kh\u00f4ng th\u1ec3 x\u1eed l\u00fd t\u00edn hi\u1ec7u 10G<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">K\u1ebft qu\u1ea3: \u274c Kh\u00f4ng c\u00f3 k\u1ebft n\u1ed1i ho\u1eb7c l\u1ed7i module<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u2753 4. T\u1ea1i sao module SFP+ c\u1ee7a t\u00f4i kh\u00f4ng \u0111\u01b0\u1ee3c nh\u1eadn di\u1ec7n?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u00e2y l\u00e0 m\u1ed9t trong nh\u1eefng s\u1ef1 c\u1ed1 ph\u1ed5 bi\u1ebfn nh\u1ea5t trong tri\u1ec3n khai th\u1ef1c t\u1ebf.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c nguy\u00ean nh\u00e2n ph\u1ed5 bi\u1ebfn:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>M\u00f4-\u0111un m\u00e3 h\u00f3a theo nh\u00e0 cung c\u1ea5p b\u1ecb ch\u1eb7n b\u1edfi firmware<\/p><\/li>\n\n\n\n<li><p>Lo\u1ea1i b\u1ed9 thu ph\u00e1t kh\u00f4ng \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3<\/p><\/li>\n\n\n\n<li><p>\u0110\u1ea7u n\u1ed1i b\u1ea9n ho\u1eb7c c\u1eafm kh\u00f4ng \u0111\u00fang c\u00e1ch<\/p><\/li>\n\n\n\n<li><p>Kh\u00f4ng t\u01b0\u01a1ng th\u00edch <a href=\"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/eeprom-electrically-erasable-programmable-read-only-memory\/\" target=\"_blank\" rel=\"\">B\u1ed9 nh\u1edb EEPROM<\/a> nh\u1eadn d\u1ea1ng<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Gi\u1ea3i ph\u00e1p:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>C\u1eafm l\u1ea1i module<\/p><\/li>\n\n\n\n<li><p>Ki\u1ec3m tra nh\u1eadt k\u00fd h\u1ec7 th\u1ed1ng \u0111\u1ec3 t\u00ecm th\u00f4ng b\u00e1o \u201ctransceiver kh\u00f4ng \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3\u201d<\/p><\/li>\n\n\n\n<li><p>S\u1eed d\u1ee5ng module t\u01b0\u01a1ng th\u00edch ho\u1eb7c \u0111\u00e3 \u0111\u01b0\u1ee3c m\u00e3 h\u00f3a<\/p><\/li>\n\n\n\n<li><p>C\u1eadp nh\u1eadt firmware thi\u1ebft b\u1ecb n\u1ebfu c\u1ea7n<\/p><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u2753 5. T\u1ea1i sao li\u00ean k\u1ebft SFP+ c\u1ee7a t\u00f4i ho\u1ea1t \u0111\u1ed9ng \u1edf t\u1ed1c \u0111\u1ed9 1G nh\u01b0ng kh\u00f4ng ho\u1ea1t \u0111\u1ed9ng \u1edf 10G?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110i\u1ec1u n\u00e0y th\u01b0\u1eddng x\u1ea3y ra do ch\u00eanh l\u1ec7ch t\u1ed1c \u0111\u1ed9 ho\u1eb7c gi\u1edbi h\u1ea1n c\u1ed5ng<strong>n<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>C\u00e1c nguy\u00ean nh\u00e2n kh\u1ea3 d\u0129:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>M\u1ed9t \u0111\u1ea7u ch\u1ec9 h\u1ed7 tr\u1ee3 ho\u1ea1t \u0111\u1ed9ng \u1edf 1G<\/p><\/li>\n\n\n\n<li><p>T\u1ef1 \u0111\u1ed9ng th\u01b0\u01a1ng l\u01b0\u1ee3ng b\u1ecb t\u1eaft ho\u1eb7c kh\u00f4ng \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3<br><\/p><\/li>\n\n\n\n<li><p>Module SFP ch\u1ec9 h\u1ed7 tr\u1ee3 1G<\/p><\/li>\n\n\n\n<li><p>Module DAC ho\u1eb7c s\u1ee3i quang kh\u00f4ng \u0111\u1ea1t chu\u1ea9n cho 10G<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>C\u00e1ch kh\u1eafc ph\u1ee5c:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>X\u00e1c minh c\u1ea3 hai \u0111\u1ea7u \u0111\u1ec1u h\u1ed7 tr\u1ee3 10G<\/p><\/li>\n\n\n\n<li><p>Thay th\u1ebf c\u00e1c module ch\u1ec9 h\u1ed7 tr\u1ee3 1G<\/p><\/li>\n\n\n\n<li><p>\u0110\u1ea3m b\u1ea3o s\u1eed d\u1ee5ng quang h\u1ecdc SFP+ ph\u00f9 h\u1ee3p (\u0111\u1ea1t chu\u1ea9n 10G)<\/p><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u2753 6. Vi\u1ec7c s\u1eed d\u1ee5ng module SFP+ c\u1ee7a b\u00ean th\u1ee9 ba c\u00f3 an to\u00e0n kh\u00f4ng?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>C\u00f3\u2014n\u1ebfu ch\u00fang \u0111\u01b0\u1ee3c m\u00e3 h\u00f3a v\u00e0 ki\u1ec3m tra \u0111\u00fang c\u00e1ch.<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Tuy nhi\u00ean, kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch ph\u1ee5 thu\u1ed9c v\u00e0o:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Ch\u00ednh s\u00e1ch nh\u00e0 cung c\u1ea5p thi\u1ebft b\u1ecb (m\u1ed9t s\u1ed1 \u00e1p d\u1ee5ng m\u00e3 h\u00f3a nghi\u00eam ng\u1eb7t)<\/p><\/li>\n\n\n\n<li><p>C\u1ea5u h\u00ecnh EEPROM<\/p><\/li>\n\n\n\n<li><p>Ch\u1ea5t l\u01b0\u1ee3ng module<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Ph\u01b0\u01a1ng ph\u00e1p th\u1ef1c h\u00e0nh t\u1ed1t nh\u1ea5t:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Ch\u1ecdn module \u0111\u00e3 \u0111\u01b0\u1ee3c m\u00e3 h\u00f3a t\u01b0\u01a1ng th\u00edch v\u1edbi th\u01b0\u01a1ng hi\u1ec7u switch c\u1ee7a b\u1ea1n<\/p><\/li>\n\n\n\n<li><p>Tr\u00e1nh s\u1eed d\u1ee5ng c\u00e1c b\u1ed9 thu ph\u00e1t ch\u01b0a \u0111\u01b0\u1ee3c x\u00e1c minh v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng th\u1ea5p trong m\u00f4i tr\u01b0\u1eddng s\u1ea3n xu\u1ea5t<\/p><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u2753 7. T\u1ea1i sao module SFP+ l\u1ea1i n\u00f3ng l\u00ean?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c sinh nhi\u1ec7t l\u00e0 b\u00ecnh th\u01b0\u1eddng\u2014\u0111\u1eb7c bi\u1ec7t \u0111\u1ed1i v\u1edbi module SFP+ RJ45 (10GBASE-T).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Nguy\u00ean nh\u00e2n:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Ti\u00eau th\u1ee5 c\u00f4ng su\u1ea5t cao (cao h\u01a1n \u0111\u00e1ng k\u1ec3 so v\u1edbi s\u1ee3i quang\/DAC)<\/p><\/li>\n\n\n\n<li><p>M\u00f4i tr\u01b0\u1eddng c\u1ed5ng d\u00e0y \u0111\u1eb7c<\/p><\/li>\n\n\n\n<li><p>T\u1ea3i truy\u1ec1n d\u1eabn li\u00ean t\u1ee5c \u1edf t\u1ed1c \u0111\u1ed9 10G<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Gi\u1ea3i ph\u00e1p:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>C\u1ea3i thi\u1ec7n lu\u1ed3ng kh\u00ed l\u00e0m m\u00e1t<\/p><\/li>\n\n\n\n<li><p>\u01afu ti\u00ean d\u00f9ng s\u1ee3i quang ho\u1eb7c DAC thay v\u00ec RJ45 khi c\u00f3 th\u1ec3<\/p><\/li>\n\n\n\n<li><p>Ki\u1ec3m tra gi\u1edbi h\u1ea1n ng\u00e2n s\u00e1ch c\u00f4ng su\u1ea5t c\u1ee7a switch<\/p><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u2753 8. T\u00f9y ch\u1ecdn SFP+ n\u00e0o \u0111\u00e1ng tin c\u1eady nh\u1ea5t?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Kh\u00f4ng t\u1ed3n t\u1ea1i t\u00f9y ch\u1ecdn \u201ct\u1ed1t nh\u1ea5t\u201d mang t\u00ednh ph\u1ed5 qu\u00e1t\u2014t\u00f9y thu\u1ed9c v\u00e0o t\u1eebng t\u00ecnh hu\u1ed1ng:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>S\u1ee3i quang (SR\/LR):<\/strong> T\u1ed1t nh\u1ea5t v\u1ec1 \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh v\u00e0 kho\u1ea3ng c\u00e1ch<\/p><\/li>\n\n\n\n<li><p><strong>DAC:<\/strong> T\u1ed1t nh\u1ea5t cho c\u00e1c li\u00ean k\u1ebft ng\u1eafn, chi ph\u00ed th\u1ea5p v\u00e0 \u0111\u1ed9 tr\u1ec5 th\u1ea5p<\/p><\/li>\n\n\n\n<li><p><strong>RJ45:<\/strong> T\u1ed1t nh\u1ea5t v\u1ec1 t\u00ednh ti\u1ec7n l\u1ee3i v\u00e0 c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng \u0111\u1ed3ng tr\u1ee5c hi\u1ec7n c\u00f3<\/p><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u2753 9. T\u1ea1i sao c\u00e1c module SFP+ gi\u1ed1ng nhau l\u1ea1i ho\u1ea1t \u0111\u1ed9ng tr\u00ean thi\u1ebft b\u1ecb n\u00e0y nh\u01b0ng kh\u00f4ng ho\u1ea1t \u0111\u1ed9ng tr\u00ean thi\u1ebft b\u1ecb kh\u00e1c?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110i\u1ec1u n\u00e0y th\u01b0\u1eddng do:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>H\u1ea1n ch\u1ebf ph\u1ea7n m\u1ec1m\u56fa\u4ef6 c\u1ee7a nh\u00e0 cung c\u1ea5p<\/p><\/li>\n\n\n\n<li><p>H\u1ed7 tr\u1ee3 t\u1ed1c \u0111\u1ed9 kh\u00e1c nhau tr\u00ean t\u1eebng c\u1ed5ng<\/p><\/li>\n\n\n\n<li><p>B\u1ea3ng t\u01b0\u01a1ng th\u00edch \u1ea9n trong c\u00e1c switch<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Nh\u1eadn th\u1ee9c then ch\u1ed1t: Ngay c\u1ea3 ph\u1ea7n c\u1ee9ng gi\u1ed1ng nhau c\u0169ng c\u00f3 th\u1ec3 ho\u1ea1t \u0111\u1ed9ng kh\u00e1c nhau t\u00f9y thu\u1ed9c v\u00e0o thi\u1ebft b\u1ecb ch\u1ee7.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\ud83d\udd35 C\u00e1ch ch\u1ecdn m\u00f4-\u0111un Small Form-factor Pluggable Plus ph\u00f9 h\u1ee3p<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c ch\u1ecdn m\u00f4-\u0111un Small Form-factor Pluggable Plus (SFP+) ph\u00f9 h\u1ee3p kh\u00f4ng ch\u1ec9 l\u00e0 m\u1ed9t quy\u1ebft \u0111\u1ecbnh k\u1ef9 thu\u1eadt\u2014m\u00e0 c\u00f2n l\u00e0 m\u1ed9t quy\u1ebft \u0111\u1ecbnh chi\u1ebfn l\u01b0\u1ee3c v\u1ec1 kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch v\u00e0 tri\u1ec3n khai. Nh\u01b0 ch\u00fang ta \u0111\u00e3 th\u1ea5y trong to\u00e0n b\u1ed9 h\u01b0\u1edbng d\u1eabn n\u00e0y, ph\u1ea7n l\u1edbn s\u1ef1 c\u1ed1 li\u00ean quan \u0111\u1ebfn SFP+ kh\u00f4ng b\u1eaft ngu\u1ed3n t\u1eeb gi\u1edbi h\u1ea1n t\u1ed1c \u0111\u1ed9, m\u00e0 xu\u1ea5t ph\u00e1t t\u1eeb vi\u1ec7c ph\u1ea7n c\u1ee9ng kh\u00f4ng kh\u1edbp, lo\u1ea1i m\u00f4-\u0111un kh\u00f4ng \u0111\u00fang ho\u1eb7c c\u00e1c quy t\u1eafc t\u01b0\u01a1ng th\u00edch b\u1ecb b\u1ecf qua.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ph\u1ea7n cu\u1ed1i c\u00f9ng n\u00e0y t\u1ed5ng h\u1ee3p to\u00e0n b\u1ed9 n\u1ed9i dung th\u00e0nh m\u1ed9t khu\u00f4n kh\u1ed5 ra quy\u1ebft \u0111\u1ecbnh th\u1ef1c ti\u1ec5n m\u00e0 b\u1ea1n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng tr\u01b0\u1edbc khi mua ho\u1eb7c tri\u1ec3n khai b\u1ea5t k\u1ef3 m\u00f4-\u0111un SFP+ n\u00e0o.<\/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\/6b9efd9d69ed4133ba8c1fe9921f1e00.jpg\" alt=\"How to Choose the Right Small Form-factor Pluggable Plus Module\" class=\"wp-image-2886\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/6b9efd9d69ed4133ba8c1fe9921f1e00.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/6b9efd9d69ed4133ba8c1fe9921f1e00-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/6b9efd9d69ed4133ba8c1fe9921f1e00-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/6b9efd9d69ed4133ba8c1fe9921f1e00-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/6b9efd9d69ed4133ba8c1fe9921f1e00-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">B\u01b0\u1edbc 1: X\u00e1c nh\u1eadn kh\u1ea3 n\u0103ng c\u1ee7a thi\u1ebft b\u1ecb b\u1ea1n<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Tr\u01b0\u1edbc khi ch\u1ecdn b\u1ea5t k\u1ef3 m\u00f4-\u0111un n\u00e0o, h\u00e3y x\u00e1c minh thi\u1ebft b\u1ecb m\u1ea1ng c\u1ee7a b\u1ea1n h\u1ed7 tr\u1ee3 SFP+ m\u1ed9t c\u00e1ch ch\u00ednh x\u00e1c.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ki\u1ec3m tra:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Thi\u1ebft b\u1ecb c\u00f3 h\u1ed7 tr\u1ee3 10GbE (SFP+) kh\u00f4ng?<\/p><\/li>\n\n\n\n<li><p>C\u00e1c c\u1ed5ng c\u00f3 h\u1ed7 tr\u1ee3 hai t\u1ed1c \u0111\u1ed9 1G\/10G hay ch\u1ec9 h\u1ed7 tr\u1ee3 ri\u00eang 10G?<\/p><\/li>\n\n\n\n<li><p>Ph\u1ea7n m\u1ec1m\u56fa\u4ef6 c\u00f3 cho ph\u00e9p s\u1eed d\u1ee5ng m\u00f4-\u0111un c\u1ee7a b\u00ean th\u1ee9 ba ho\u1eb7c m\u00f4-\u0111un \u0111\u01b0\u1ee3c m\u00e3 h\u00f3a kh\u00f4ng?<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00ec sao \u0111i\u1ec1u n\u00e0y quan tr\u1ecdng: Ngay c\u1ea3 m\u00f4-\u0111un t\u1ed1t nh\u1ea5t c\u0169ng s\u1ebd th\u1ea5t b\u1ea1i n\u1ebfu thi\u1ebft b\u1ecb ch\u1ee7 kh\u00f4ng h\u1ed7 tr\u1ee3 n\u00f3 m\u1ed9t c\u00e1ch ph\u00f9 h\u1ee3p.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">B\u01b0\u1edbc 2: Ch\u1ecdn lo\u1ea1i ph\u01b0\u01a1ng ti\u1ec7n truy\u1ec1n d\u1eabn ph\u00f9 h\u1ee3p<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">L\u1ef1a ch\u1ecdn d\u1ef1a tr\u00ean m\u00f4i tr\u01b0\u1eddng v\u1eadt l\u00fd v\u00e0 m\u1ea1ng c\u1ee7a b\u1ea1n:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>S\u1ee3i quang (SR \/ LR)<\/strong> \u2192 T\u1ed1t nh\u1ea5t cho hi\u1ec7u n\u0103ng, kho\u1ea3ng c\u00e1ch v\u00e0 \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh<\/p><\/li>\n\n\n\n<li><p><strong>DAC (\u0110\u1ed3ng n\u1ed1i tr\u1ef1c ti\u1ebfp)<\/strong> \u2192 T\u1ed1t nh\u1ea5t cho k\u1ebft n\u1ed1i t\u1ea7m ng\u1eafn, chi ph\u00ed th\u1ea5p v\u00e0 \u0111\u1ed9 tr\u1ec5 th\u1ea5p<\/p><\/li>\n\n\n\n<li><p><strong>RJ45 (10GBASE-T)<\/strong> \u2192 T\u1ed1t nh\u1ea5t cho c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng c\u00e1p \u0111\u1ed3ng hi\u1ec7n c\u00f3 v\u00e0 n\u00e2ng c\u1ea5p d\u1ec5 d\u00e0ng<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Quy t\u1eafc chung:<br>N\u1ebfu hi\u1ec7u n\u0103ng l\u00e0 \u01b0u ti\u00ean \u2192 d\u00f9ng s\u1ee3i quang<br>N\u1ebfu chi ph\u00ed l\u00e0 \u01b0u ti\u00ean \u2192 d\u00f9ng DAC<br>N\u1ebfu t\u00ednh thu\u1eadn ti\u1ec7n l\u00e0 \u01b0u ti\u00ean \u2192 d\u00f9ng RJ45<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">B\u01b0\u1edbc 3: \u0110\u1ea3m b\u1ea3o \u0111\u00e1p \u1ee9ng y\u00eau c\u1ea7u t\u01b0\u01a1ng th\u00edch<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u00e2y l\u00e0 b\u01b0\u1edbc quan tr\u1ecdng nh\u1ea5t \u0111\u1ec3 tr\u00e1nh s\u1ef1 c\u1ed1.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">X\u00e1c minh:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>T\u01b0\u01a1ng th\u00edch nh\u00e0 cung c\u1ea5p (Cisco, MikroTik, Ubiquiti, v.v.)<\/p><\/li>\n\n\n\n<li><p>Y\u00eau c\u1ea7u m\u00e3 h\u00f3a EEPROM<\/p><\/li>\n\n\n\n<li><p>T\u1ed1c \u0111\u1ed9 h\u1ed7 tr\u1ee3 (1G \/ 10G \/ \u0111a t\u1ed1c \u0111\u1ed9)<\/p><\/li>\n\n\n\n<li><p>C\u00e1c h\u1ea1n ch\u1ebf do ph\u1ea7n m\u1ec1m\u56fa\u4ef6 c\u1ee7a b\u1ed9 chuy\u1ec3n m\u1ea1ch<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Nh\u1eadn \u0111\u1ecbnh then ch\u1ed1t: Kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch SFP+ \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1edfi h\u1ec7 th\u1ed1ng ch\u1ee7\u2014kh\u00f4ng ch\u1ec9 b\u1edfi b\u1ea3n th\u00e2n m\u00f4-\u0111un.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">B\u01b0\u1edbc 4: Ki\u1ec3m tra nhu c\u1ea7u v\u1ec1 kho\u1ea3ng c\u00e1ch v\u00e0 hi\u1ec7u n\u0103ng<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c lo\u1ea1i SFP+ kh\u00e1c nhau \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf cho c\u00e1c ph\u1ea1m vi kh\u00e1c nhau:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>SR \u2192 t\u1ea7m ng\u1eafn (trung t\u00e2m d\u1eef li\u1ec7u, t\u1eeb k\u1ec7 n\u00e0y sang k\u1ec7 kh\u00e1c)<\/p><\/li>\n\n\n\n<li><p>LR \u2192 t\u1ea7m xa (khu\u00f4n vi\u00ean, t\u1eeb t\u00f2a nh\u00e0 n\u00e0y sang t\u00f2a nh\u00e0 kh\u00e1c)<\/p><\/li>\n\n\n\n<li><p>DAC \u2192 t\u1ea7m c\u1ef1c ng\u1eafn (b\u00ean trong m\u1ed9t k\u1ec7)<\/p><\/li>\n\n\n\n<li><p>RJ45 \u2192 l\u00ean t\u1edbi 100m tr\u00ean c\u00e1p \u0111\u1ed3ng<\/p><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">B\u01b0\u1edbc 5: C\u00e2n nh\u1eafc gi\u1edbi h\u1ea1n v\u1ec1 c\u00f4ng su\u1ea5t v\u00e0 nhi\u1ec7t<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1eb7c bi\u1ec7t quan tr\u1ecdng \u0111\u1ed1i v\u1edbi c\u00e1c tri\u1ec3n khai m\u1eadt \u0111\u1ed9 cao:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>M\u00f4-\u0111un SFP+ RJ45 ti\u00eau th\u1ee5 nhi\u1ec1u \u0111i\u1ec7n n\u0103ng h\u01a1n \u0111\u00e1ng k\u1ec3<\/p><\/li>\n\n\n\n<li><p>S\u1ef1 t\u00edch t\u1ee5 nhi\u1ec7t c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh c\u1ee7a switch<\/p><\/li>\n\n\n\n<li><p>C\u00e1c k\u1ec7 d\u00e0y \u0111\u1eb7c \u0111\u00f2i h\u1ecfi k\u1ebf ho\u1ea1ch l\u01b0u th\u00f4ng kh\u00ed \u0111\u01b0\u1ee3c t\u00ednh to\u00e1n c\u1ea9n th\u1eadn<\/p><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Danh s\u00e1ch ki\u1ec3m tra t\u00f3m t\u1eaft vi\u1ec7c ch\u1ecdn SFP+<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Tr\u01b0\u1edbc khi mua ho\u1eb7c tri\u1ec3n khai, h\u00e3y x\u00e1c nh\u1eadn:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2714 Thi\u1ebft b\u1ecb h\u1ed7 tr\u1ee3 SFP+ (10GbE)<br>\u2714 T\u00ednh t\u01b0\u01a1ng th\u00edch t\u1ed1c \u0111\u1ed9 c\u1ed5ng (1G \/ 10G \/ hai t\u1ed1c \u0111\u1ed9)<br>\u2714 Lo\u1ea1i m\u00f4-\u0111un \u0111\u00fang (SR \/ LR \/ DAC \/ RJ45)<br>\u2714 T\u01b0\u01a1ng th\u00edch nh\u00e0 cung c\u1ea5p ho\u1eb7c h\u1ed7 tr\u1ee3 m\u00e3 h\u00f3a<br>\u2714 Lo\u1ea1i c\u00e1p ph\u00f9 h\u1ee3p v\u1edbi c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng (<a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/products\/copper-sfp-vs-fiber-sfp\/\">s\u1ee3i quang ho\u1eb7c \u0111\u1ed3ng<\/a>)<br>\u2714 Y\u00eau c\u1ea7u kho\u1ea3ng c\u00e1ch n\u1eb1m trong th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt<br>\u2714 Gi\u1edbi h\u1ea1n c\u00f4ng su\u1ea5t v\u00e0 nhi\u1ec7t \u1edf m\u1ee9c ch\u1ea5p nh\u1eadn \u0111\u01b0\u1ee3c<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ud83d\udc49 M\u00f4-\u0111un SFP+ \u201cph\u00f9 h\u1ee3p\u201d kh\u00f4ng mang t\u00ednh ph\u1ed5 qu\u00e1t\u2014m\u00e0 mang t\u00ednh \u0111\u1eb7c th\u00f9 theo b\u1ed1i c\u1ea3nh.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t tri\u1ec3n khai th\u00e0nh c\u00f4ng ph\u1ee5 thu\u1ed9c v\u00e0o vi\u1ec7c \u0111\u1ed3ng b\u1ed9 h\u00f3a:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>T\u01b0\u01a1ng th\u00edch ph\u1ea7n c\u1ee9ng<\/p><\/li>\n\n\n\n<li><p>Vi\u1ec7c l\u1ef1a ch\u1ecdn lo\u1ea1i ph\u01b0\u01a1ng ti\u1ec7n truy\u1ec1n d\u1eabn<\/p><\/li>\n\n\n\n<li><p>M\u00f4i tr\u01b0\u1eddng m\u1ea1ng<\/p><\/li>\n\n\n\n<li><p>C\u00e1c quy t\u1eafc nh\u00e0 cung c\u1ea5p v\u00e0 ph\u1ea7n m\u1ec1m\u56fa\u4ef6<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Khi nh\u1eefng y\u1ebfu t\u1ed1 n\u00e0y \u0111\u01b0\u1ee3c \u0111\u1ed3ng b\u1ed9 h\u00f3a, SFP+ s\u1ebd cung c\u1ea5p ch\u00ednh x\u00e1c nh\u1eefng g\u00ec n\u00f3 \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 l\u00e0m:<br>K\u1ebft n\u1ed1i 10GbE nhanh ch\u00f3ng, linh ho\u1ea1t v\u00e0 m\u1edf r\u1ed9ng \u0111\u01b0\u1ee3c<strong>.<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">N\u1ebfu b\u1ea1n \u0111ang ch\u1ecdn m\u00f4-\u0111un SFP+ cho tri\u1ec3n khai doanh nghi\u1ec7p ho\u1eb7c trung t\u00e2m d\u1eef li\u1ec7u, h\u00e3y lu\u00f4n \u01b0u ti\u00ean:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch \u0111\u00e3 \u0111\u01b0\u1ee3c ki\u1ec3m ch\u1ee9ng<\/p><\/li>\n\n\n\n<li><p>Hi\u1ec7u n\u0103ng \u1ed5n \u0111\u1ecbnh<\/p><\/li>\n\n\n\n<li><p>Kh\u1ea3 n\u0103ng t\u01b0\u01a1ng t\u00e1c gi\u1eefa c\u00e1c nh\u00e0 cung c\u1ea5p \u0111\u00e3 \u0111\u01b0\u1ee3c ki\u1ec3m tra<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ec3 t\u00ecm c\u00e1c l\u1ef1a ch\u1ecdn \u0111\u00e1ng tin c\u1eady v\u00e0 s\u1eb5n s\u00e0ng tri\u1ec3n khai cho \u1ee9ng d\u1ee5ng, b\u1ea1n c\u00f3 th\u1ec3 kh\u00e1m ph\u00e1 <a target=\"_self\" href=\"https:\/\/www.l-p.com\/\"><strong>C\u1eeda h\u00e0ng Ch\u00ednh th\u1ee9c LINK-PP<\/strong><\/a>, n\u01a1i c\u00e1c m\u00f4-\u0111un SFP+ \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf nh\u1eb1m \u0111\u1ea3m b\u1ea3o kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch r\u1ed9ng r\u00e3i v\u00e0 ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c t\u00ecnh hu\u1ed1ng tri\u1ec3n khai m\u1ea1ng th\u1ef1c t\u1ebf.<\/p>","protected":false},"excerpt":{"rendered":"<p>T\u00ecm hi\u1ec3u v\u1ec1 Small Form-factor Pluggable Plus SFP+, c\u00e1ch ho\u1ea1t \u0111\u1ed9ng, quy t\u1eafc t\u01b0\u01a1ng th\u00edch, tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng ph\u1ed5 bi\u1ebfn v\u00e0 c\u00e1ch ch\u1ecdn module ph\u00f9 h\u1ee3p.<\/p>","protected":false},"author":1,"featured_media":2887,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[28],"tags":[14],"class_list":["post-2888","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-products","tag-10g-sfp-transceivers"],"blocksy_meta":[],"acf":[],"_links":{"self":[{"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/2888","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=2888"}],"version-history":[{"count":4,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/2888\/revisions"}],"predecessor-version":[{"id":10733,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/2888\/revisions\/10733"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/media\/2887"}],"wp:attachment":[{"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/media?parent=2888"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/categories?post=2888"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/tags?post=2888"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}