{"id":7278,"date":"2026-05-14T00:00:00","date_gmt":"2026-05-14T00:00:00","guid":{"rendered":"https:\/\/lp.szlogic.cn\/glossary\/what-is-frame-check-sequence-fcs\/"},"modified":"2026-06-22T03:25:59","modified_gmt":"2026-06-22T03:25:59","slug":"what-is-frame-check-sequence-fcs","status":"publish","type":"post","link":"https:\/\/resourceslp.szlogic.cn\/ko\/glossary\/what-is-frame-check-sequence-fcs","title":{"rendered":"\ud504\ub808\uc784 \uccb4\ud06c \uc2dc\ud000\uc2a4(FCS): \uc758\ubbf8, \uc624\ub958, \ud574\uacb0 \ubc29\ubc95"},"content":{"rendered":"<figure class=\"wp-block-image aligncenter size-large\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1200\" height=\"628\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/88484eaf1ed240fd919c40e0be49a046.jpg\" alt=\"Frame Check Sequence (FCS): Meaning, Errors, and Fixes\" class=\"wp-image-7268\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/88484eaf1ed240fd919c40e0be49a046.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/88484eaf1ed240fd919c40e0be49a046-300x157.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/88484eaf1ed240fd919c40e0be49a046-1024x536.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/88484eaf1ed240fd919c40e0be49a046-768x402.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/88484eaf1ed240fd919c40e0be49a046-18x9.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\ud504\ub808\uc784 \uac80\uc0ac \uc2dc\ud000\uc2a4(FCS, Frame Check Sequence)\ub294 \uc774\ub354\ub137 \ubc0f \uae30\ud0c0 \ub370\uc774\ud130 \ud1b5\uc2e0 \ud504\ub85c\ud1a0\ucf5c\uc5d0\uc11c \uc0ac\uc6a9\ub418\ub294 \uacc4\uce35 2 \uc624\ub958 \uac10\uc9c0 \uba54\ucee4\ub2c8\uc998\uc73c\ub85c, \ub124\ud2b8\uc6cc\ud06c \ud504\ub808\uc784\uc774 \uc804\uc1a1 \uc911\uc5d0 \uc190\uc0c1\ub418\uc5c8\ub294\uc9c0 \uc5ec\ubd80\ub97c \ud655\uc778\ud558\uae30 \uc704\ud574 \uc0ac\uc6a9\ub429\ub2c8\ub2e4. \ud604\ub300 \uc774\ub354\ub137 \ub124\ud2b8\uc6cc\ud06c\uc5d0\uc11c FCS \ud544\ub4dc\ub294 \uc77c\ubc18\uc801\uc73c\ub85c CRC-32 \uae30\ubc18\uc73c\ub85c, \ubaa8\ub4e0 \uc774\ub354\ub137 \ud504\ub808\uc784 \ub05d\uc5d0 \ucd94\uac00\ub418\uc5b4 \uc2a4\uc704\uce58, \ub77c\uc6b0\ud130, \uc11c\ubc84 \ubc0f <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/ko\/glossary\/what-is-nic-network-interface-card\/\">\ub124\ud2b8\uc6cc\ud06c \uc778\ud130\ud398\uc774\uc2a4 \uce74\ub4dc(NICs)<\/a> (NICs)\uac00 \uc0c1\uc704 \uacc4\uce35 \ud504\ub85c\ud1a0\ucf5c\uc5d0 \uc758\ud574 \ub370\uc774\ud130\uac00 \ucc98\ub9ac\ub418\uae30 \uc804\uc5d0 \uc804\uc1a1 \uc624\ub958\ub97c \uac10\uc9c0\ud560 \uc218 \uc788\ub3c4\ub85d \ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc2e4\ubb34 \ub124\ud2b8\uc6cc\ud0b9 \ud658\uacbd\uc5d0\uc11c FCS \uc624\ub958\ub294 \ub2e8\uc21c\ud55c \uc774\ub860\uc801 \ud504\ub85c\ud1a0\ucf5c \uc774\ubca4\ud2b8\uac00 \uc544\ub2d9\ub2c8\ub2e4. \uc774\ub4e4\uc740 \uc190\uc0c1\ub41c \uc774\ub354\ub137 \ucf00\uc774\ube14, \ub354\ub7ec\uc6b4 \uad11 \ucee4\ub125\ud130, \ubd88\uc548\uc815\ud55c \uad11 \ubaa8\ub4c8, <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/ko\/glossary\/what-is-electromagnetic-interference\/\">\uc804\uc790\uae30 \uac04\uc12d<\/a> (EMI), \ub4c0\ud50c\ub809\uc2a4 \ubd88\uc77c\uce58 \ub610\ub294 \uace0\uc18d \ub9c1\ud06c\uc5d0\uc11c \uc2e0\ud638 \ubb34\uacb0\uc131 \uc800\ud558\uc640 \uac19\uc740 \uc2e4\uc81c \ubb3c\ub9ac \uacc4\uce35 \ubb38\uc81c\uc758 \ucd08\uae30 \uacbd\uace0 \uc2e0\ud638\uc785\ub2c8\ub2e4. \ub370\uc774\ud130 \uc13c\ud130 \ubc0f \uc5d4\ud130\ud504\ub77c\uc774\uc988 \ub124\ud2b8\uc6cc\ud06c\uc5d0\uc11c \ubc18\ubcf5\uc801\uc73c\ub85c \ubc1c\uc0dd\ud558\ub294 CRC\/FCS \uc624\ub958\ub294 \uc77c\ubc18\uc801\uc73c\ub85c \uacb0\ud568 \uc788\ub294 <a target=\"_self\" href=\"https:\/\/www.l-p.com\/store-26155-1g-sfp.htm\">SFP<\/a>, <a target=\"_self\" href=\"https:\/\/www.l-p.com\/store-26192-10g-sfp.htm\">SFP+<\/a>, <a target=\"_self\" href=\"https:\/\/www.l-p.com\/store-26153-40g-qsfp.htm\">QSFP<\/a>, \ub610\ub294 <a target=\"_self\" href=\"https:\/\/www.l-p.com\/store-27045-100g-qsfp28-sfp-dd.htm\">QSFP28<\/a> \uad11 \ud2b8\ub79c\uc2a4\uc2dc\ubc84 \ubc0f \ud488\uc9c8\uc774 \ub0ae\uc740 \ucf00\uc774\ube14\ub9c1 \uc778\ud504\ub77c\uc640 \uad00\ub828\uc774 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc774\ub354\ub137 \uc18d\ub3c4\uac00 IEEE 802.3ck\uacfc \uac19\uc740 \ud45c\uc900\uc5d0 \ub530\ub77c 1G \ubc0f 10G\uc5d0\uc11c 100G, 400G, \uc2ec\uc9c0\uc5b4 800G \uc774\ub354\ub137\uc73c\ub85c \uacc4\uc18d \uc9c4\ud654\ud568\uc5d0 \ub530\ub77c \ud504\ub808\uc784 \ubb34\uacb0\uc131\uc744 \uc720\uc9c0\ud558\ub294 \uac83\uc774 \uc810\ucc28 \ub354 \uc911\uc694\ud574\uc9c0\uace0 \uc788\uc2b5\ub2c8\ub2e4. \ub9e4\uc6b0 \ubbf8\uc138\ud55c <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/ko\/glossary\/understanding-what-is-bit-error-rate\/\">\ube44\ud2b8 \uc624\ub958\uc728<\/a> (BER)\uc870\ucc28\ub3c4 \ud328\ud0b7 \uc190\uc0c1, \uc7ac\uc804\uc1a1, \uc9c0\uc5f0 \uc99d\uac00 \ubc0f \uc751\uc6a9 \ud504\ub85c\uadf8\ub7a8 \ubd88\uc548\uc815\uc744 \ucd08\ub798\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ub530\ub77c\uc11c \ub124\ud2b8\uc6cc\ud06c \uc5d4\uc9c0\ub2c8\uc5b4\ub294 \ud328\ud0b7 \uc190\uc2e4 \ub610\ub294 \uac04\ud5d0\uc801\uc778 \uc5f0\uacb0 \ubb38\uc81c\ub97c \ud574\uacb0\ud560 \ub54c \uc2a4\uc704\uce58 \ubc0f \ub124\ud2b8\uc6cc\ud06c \uc7a5\ube44\uc758 FCS \uce74\uc6b4\ud130\ub97c \uc790\uc8fc \ubaa8\ub2c8\ud130\ub9c1\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ubcf8 \ubb38\uc11c\uc5d0\uc11c\ub294 \ud504\ub808\uc784 \uac80\uc0ac \uc2dc\ud000\uc2a4(FCS)\uc758 \uc758\ubbf8, \uc774\ub354\ub137 \ud504\ub808\uc784 \ub0b4\uc5d0\uc11c CRC-32\uac00 \uc791\ub3d9\ud558\ub294 \ubc29\uc2dd, FCS \uc624\ub958\uac00 \ubc1c\uc0dd\ud558\ub294 \uc774\uc720, \uadf8\ub9ac\uace0 \uc774 \uc624\ub958\uac00 <a target=\"_self\" href=\"https:\/\/www.l-p.com\/store-25432-optics-transceivers-sfp-modules.htm\">\uad11 \ubaa8\ub4c8<\/a> \ubc0f \uad11 \ub9c1\ud06c\uc640 \uc5b4\ub5a4 \uad00\ub828\uc774 \uc788\ub294\uc9c0, \uadf8\ub9ac\uace0 \ub124\ud2b8\uc6cc\ud06c \uc804\ubb38\uac00\ub4e4\uc774 \uc2e4\uc81c \ubc30\ud3ec \ud658\uacbd\uc5d0\uc11c CRC\/FCS \uad00\ub828 \ubb38\uc81c\ub97c \uc5b4\ub5bb\uac8c \uc9c4\ub2e8\ud558\uace0 \ud574\uacb0\ud558\ub294\uc9c0\ub97c \uc124\uba85\ud569\ub2c8\ub2e4. \ubcf8 \uac00\uc774\ub4dc\ub97c \ub9c8\uce58\uba74, \ud604\ub300 \uc774\ub354\ub137 \ub124\ud2b8\uc6cc\ud06c\uc5d0\uc11c FCS\uc758 \uc774\ub860\uc801 \uae30\ucd08\uc640 \uc6b4\uc601\uc801 \uc911\uc694\uc131 \ubaa8\ub450\ub97c \uc774\ud574\ud558\uac8c \ub420 \uac83\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >\u2705 \ud504\ub808\uc784 \uccb4\ud06c \uc2dc\ud000\uc2a4(FCS)\ub780 \ubb34\uc5c7\uc778\uac00\uc694?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\ud504\ub808\uc784 \uac80\uc0ac \uc2dc\ud000\uc2a4(FCS)\ub294 \uc774\ub354\ub137 \ud504\ub808\uc784 \ub05d\uc5d0 \uc704\uce58\ud55c \ud2b8\ub808\uc77c\ub7ec \ud544\ub4dc\ub85c, \uc804\uc1a1 \uc624\ub958\ub97c \uac10\uc9c0\ud558\uae30 \uc704\ud574 CRC \uac12\uc744 \ub2f4\uace0 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub294 <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/ko\/knowledge-center\/ieee-802-3-ethernet-standard-explained\/\">IEEE 802.3<\/a> \ud504\ub808\uc774\ubc0d \uc2dc FCS\ub294 4\ubc14\uc774\ud2b8 \uae38\uc774\uc774\uba70, \uc218\uc2e0\uae30\uac00 \ub370\uc774\ud130\ub97c \uc218\ub77d\ud558\uae30 \uc804\uc5d0 \ud504\ub808\uc784\uc774 \ubb34\uacb0\ud55c\uc9c0 \ub610\ub294 \uc190\uc0c1\ub418\uc5c8\ub294\uc9c0\ub97c \uacb0\uc815\ud558\ub294 \ub370 \ub3c4\uc6c0\uc744 \uc90d\ub2c8\ub2e4.<\/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\/2549c701a33d4df493a36c7365132a8f.jpg\" alt=\"What Is Frame Check Sequence (FCS)?\" class=\"wp-image-7269\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/2549c701a33d4df493a36c7365132a8f.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/2549c701a33d4df493a36c7365132a8f-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/2549c701a33d4df493a36c7365132a8f-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/2549c701a33d4df493a36c7365132a8f-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/2549c701a33d4df493a36c7365132a8f-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" >FCS \ub9c8\uc774\ud06c\ub85c \uc815\uc758<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">FCS(Frame Check Sequence)\ub294 \uc774\ub354\ub137 \ud504\ub808\uc784 \ubb34\uacb0\uc131\uc744 \uc804\uc1a1 \uc911\uc5d0 \uac80\uc99d\ud558\uae30 \uc704\ud574 \uc0ac\uc6a9\ub418\ub294 \uacc4\uce35 2 \ud2b8\ub808\uc77c\ub7ec \ud544\ub4dc\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uac04\ub2e8\ud55c \uc815\uc758: FCS = \uc774\ub354\ub137 \ud504\ub808\uc784 \ub05d\uc5d0 \ucca8\ubd80\ub41c \uc624\ub958 \uac80\uc0ac \uac12<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ub2e8\uc21c\ud654\ub41c \uc774\ub354\ub137 \ud504\ub808\uc784 \uad6c\uc870:<\/p>\n\n\n\n<pre class=\"wp-block-code\">\n<code>| \uc774\ub354\ub137 \ud5e4\ub354 | \ud398\uc774\ub85c\ub4dc | FCS |<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\uc218\uc2e0\ub41c FCS\uac00 \uc7ac\uacc4\uc0b0\ub41c \uac12\uacfc \uc77c\uce58\ud558\uc9c0 \uc54a\uc73c\uba74 \ud504\ub808\uc784\uc774 \ud3d0\uae30\ub429\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >CRC-32 \ub9c8\uc774\ud06c\ub85c \uc815\uc758<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">CRC-32(Cyclic Redundancy Check 32\ube44\ud2b8)\ub294 \uc774\ub354\ub137 FCS \uac12\uc744 \uc0dd\uc131\ud558\ub294 \ub370 \uc0ac\uc6a9\ub418\ub294 \uc218\ud559\uc801 \uc54c\uace0\ub9ac\uc998\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc774\ub354\ub137\uc5d0\uc11c:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">CRC-32CRCtext{-}32CRC-32<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uae30\ubcf8 \uc808\ucc28:<\/p>\n\n\n\n<pre class=\"wp-block-code\">\n<code>\ud504\ub808\uc784 \ub370\uc774\ud130 \u2192 CRC-32 \uacc4\uc0b0 \u2192 FCS<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\uc218\uc2e0 \uce21:<\/p>\n\n\n\n<pre class=\"wp-block-code\">\n<code>\uc218\uc2e0\ub41c \ud504\ub808\uc784 \u2192 CRC \uc7ac\uacc4\uc0b0 \u2192 FCS\uc640 \ube44\uad50<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">CRC-32\ub294 \ub2e4\uc74c\uc744 \ud0d0\uc9c0\ud558\ub294 \ub370 \ub9e4\uc6b0 \ud6a8\uacfc\uc801\uc785\ub2c8\ub2e4:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>\ube44\ud2b8 \uc624\ub958<\/p><\/li><li><p>\ubc84\uc2a4\ud2b8 \uc624\ub958<\/p><\/li><li><p>\uc2e0\ud638 \uc65c\uace1<\/p><\/li><li><p>\uc804\uc1a1 \ub178\uc774\uc988<\/p><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" >FCS\uac00 \ud504\ub808\uc784 \ub05d\uc5d0 \ubc30\uce58\ub418\ub294 \uc774\uc720<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">FCS\ub294 CRC \uacc4\uc0b0\uc774 \uc804\uccb4 \ud504\ub808\uc784 \ub370\uc774\ud130 \ucc98\ub9ac \ud6c4 \uc644\ub8cc\ub418\uc5b4\uc57c \ud558\ubbc0\ub85c \uc774\ub354\ub137 \ud504\ub808\uc784 \ub05d\uc5d0 \ubc30\uce58\ub429\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ucc98\ub9ac \ud750\ub984:<\/p>\n\n\n\n<pre class=\"wp-block-code\">\n<code>\ud504\ub808\uc784 \uc0dd\uc131 \u2192 CRC \uacc4\uc0b0 \u2192 FCS \ucd94\uac00<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\uc774 \uc124\uacc4\ub294 \uc774\ub354\ub137 \uc7a5\uce58\uac00 \ub370\uc774\ud130\ub97c \uc218\ub77d\ud558\uae30 \uc804\uc5d0 \uc644\uc804\ud55c \ud504\ub808\uc784\uc758 \ubb34\uacb0\uc131\uc744 \uac80\uc99d\ud560 \uc218 \uc788\ub3c4\ub85d \ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc2e4\uc81c \ub124\ud2b8\uc6cc\ud06c\uc5d0\uc11c \ubc18\ubcf5\uc801\uc778 FCS \uc624\ub958\ub294 \uc77c\ubc18\uc801\uc73c\ub85c \ub2e4\uc74c\uc744 \ud3ec\ud568\ud55c \ubb3c\ub9ac \uacc4\uce35 \ubb38\uc81c\ub97c \ub098\ud0c0\ub0c5\ub2c8\ub2e4:<\/p>\n\n\n\n<figure class=\"wp-block-table\">\n<table class=\"has-fixed-layout\">\n<colgroup><col style=\"width: 336px;\"\/><col style=\"min-width: 25px;\"\/><\/colgroup><tbody><tr><th colspan=\"1\" rowspan=\"1\" colwidth=\"336\"><p>\uc77c\ubc18\uc801\uc778 \uc6d0\uc778<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>\uc77c\ubc18\uc801\uc778 \uacb0\uacfc<\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"336\"><p>\uc190\uc0c1\ub41c \uc774\ub354\ub137 \ucf00\uc774\ube14<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>CRC\/FCS \uc624\ub958<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"336\"><p>\uc624\uc5fc\ub41c \uad11\uc12c\uc720 \ucee4\ub125\ud130<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\ud328\ud0b7 \uc190\uc0c1<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"336\"><p>\uacb0\ud568 \uc788\ub294 SFP\/QSFP \uad11 \ubaa8\ub4c8<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\ubd88\uaddc\uce59\uc801 <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/ko\/glossary\/what-does-packet-loss-mean-for-your-internet-connection\/\">\ud328\ud0b7 \uc190\uc2e4<\/a><\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"336\"><p>EMI \uac04\uc12d<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\uc784\uc758\uc758 \ud504\ub808\uc784 \uc190\uc0c1<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\ub530\ub77c\uc11c FCS \uc624\ub958\ub294 \ub124\ud2b8\uc6cc\ud06c \uc5d4\uc9c0\ub2c8\uc5b4\ub4e4\uc5d0 \uc758\ud574 \ub9c1\ud06c \ud488\uc9c8 \ub610\ub294 \uad11 \ud2b8\ub79c\uc2a4\uc2dc\ubc84 \ubb38\uc81c\uc758 \uc870\uae30 \uc9c0\ud45c\ub85c \ub110\ub9ac \uc0ac\uc6a9\ub429\ub2c8\ub2e4.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >\u2705 FCS\ub294 \uc774\ub354\ub137 \ud504\ub808\uc784\uc5d0\uc11c \uc5b4\ub5bb\uac8c \uc791\ub3d9\ud558\ub098\uc694?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\uc1a1\uc2e0\uc790\uac00 \uc774\ub354\ub137 \ud504\ub808\uc784\uc744 \uc804\uc1a1\ud560 \ub54c, \ud504\ub808\uc784 \ub0b4\uc6a9 \uc804\uccb4\uc5d0 \ub300\ud574 CRC\ub97c \uacc4\uc0b0\ud558\uace0 \uadf8 \uacb0\uacfc\ub97c FCS \ud544\ub4dc\uc5d0 \uae30\ub85d\ud569\ub2c8\ub2e4. \uc218\uc2e0\uae30\ub294 \ub3d9\uc77c\ud55c \uacc4\uc0b0\uc744 \uc218\ud589\ud55c \ud6c4 \uac12\uc744 \ube44\uad50\ud569\ub2c8\ub2e4. \uac12\uc774 \uc77c\uce58\ud558\uba74 \ud504\ub808\uc784\uc774 \uc218\ub77d\ub418\uace0, \uc77c\uce58\ud558\uc9c0 \uc54a\uc73c\uba74 \ud504\ub808\uc784\uc774 \ud3d0\uae30\ub429\ub2c8\ub2e4. \uc774\uac83\uc774 \ubc14\ub85c FCS\uac00 \ube60\ub978 \uacc4\uce35 2 \ubb34\uacb0\uc131 \uac80\uc0ac\uc778 \uc774\uc720\uc785\ub2c8\ub2e4.<\/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\/92ab1a95487c4af99647400a6d08c0d9.jpg\" alt=\" How Does FCS Work in Ethernet Frames?\" class=\"wp-image-7270\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/92ab1a95487c4af99647400a6d08c0d9.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/92ab1a95487c4af99647400a6d08c0d9-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/92ab1a95487c4af99647400a6d08c0d9-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/92ab1a95487c4af99647400a6d08c0d9-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/92ab1a95487c4af99647400a6d08c0d9-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">FCS \uac80\uc99d\uc740 \uc804\uc801\uc73c\ub85c \uacc4\uce35 2\uc5d0\uc11c \uc218\ud589\ub418\uba70, \uc77c\ubc18\uc801\uc73c\ub85c NIC, \uc2a4\uc704\uce58 \ubc0f \uad11\ud559 \uc778\ud130\ud398\uc774\uc2a4\uc640 \uac19\uc740 \uc774\ub354\ub137 \ud558\ub4dc\uc6e8\uc5b4\uc5d0 \uc758\ud574 \ucc98\ub9ac\ub429\ub2c8\ub2e4. <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/ko\/glossary\/what-is-application-specific-integrated-circuit-asic\/\">ASIC\uc744 \uacb0\ud569<\/a>, \uc774\ub294 \uc190\uc0c1\ub41c \ud504\ub808\uc784\uc774 \uc0c1\uc704 \uacc4\uce35 \ud504\ub85c\ud1a0\ucf5c \ub610\ub294 \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc5d0 \uc601\ud5a5\uc744 \uc8fc\uae30 \uc804\uc5d0 \uc120\uc18d\ub3c4(wire speed)\uc5d0\uc11c \uac10\uc9c0\ub420 \uc218 \uc788\ub3c4\ub85d \ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >\uc1a1\uc2e0 \uce21 CRC \uc0dd\uc131<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\uc774\ub354\ub137 \ud504\ub808\uc784\uc744 \uc804\uc1a1\ud558\uae30 \uc804\uc5d0 \uc1a1\uc2e0 \uc7a5\uce58\ub294 \ud504\ub808\uc784 \ub370\uc774\ud130\ub85c\ubd80\ud130 CRC-32 \uac12\uc744 \uacc4\uc0b0\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uae30\ubcf8 \uc808\ucc28:<\/p>\n\n\n\n<pre class=\"wp-block-code\">\n<code>\uc774\ub354\ub137 \ud504\ub808\uc784 \ub370\uc774\ud130 \u2192 CRC-32 \uacc4\uc0b0 \u2192 FCS \uc0dd\uc131<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\uc0dd\uc131\ub41c CRC \uac12\uc740 \uc774\ud6c4 \ud504\ub808\uc784 \ub05d\uc5d0 FCS \ud544\ub4dc\ub85c\uc11c \ucd94\uac00\ub429\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc774 \ub2e8\uc21c\ud654\ub41c \uc774\ub354\ub137 \ud504\ub808\uc784 \ud504\ub85c\uc138\uc2a4\ub294 \uc804\uc1a1\ub41c \ud504\ub808\uc784\uc774 \uc218\uc2e0 \uc7a5\uce58\uc5d0 \uc758\ud574 \ub098\uc911\uc5d0 \ubb34\uacb0\uc131 \uac80\uc99d\uc744 \ubc1b\uc744 \uc218 \uc788\ub3c4\ub85d \ubcf4\uc7a5\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >\uc218\uc2e0 \uce21 \uac80\uc99d<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\ud504\ub808\uc784\uc774 \ub3c4\ucc29\ud558\uba74 \uc218\uc2e0 \uc7a5\uce58\ub294 \uc218\uc2e0\ub41c \ud504\ub808\uc784 \ub0b4\uc6a9\uc744 \uc0ac\uc6a9\ud558\uc5ec CRC-32 \uac12\uc744 \ub2e4\uc2dc \uacc4\uc0b0\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uac80\uc99d \ud504\ub85c\uc138\uc2a4:<\/p>\n\n\n\n<pre class=\"wp-block-code\">\n<code>\uc218\uc2e0\ub41c \ud504\ub808\uc784 \u2192 CRC \uc7ac\uacc4\uc0b0 \u2192 FCS\uc640 \ube44\uad50<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\ub450 \uac00\uc9c0 \uac00\ub2a5\ud55c \uacb0\uacfc:<\/p>\n\n\n\n<figure class=\"wp-block-table\">\n<table class=\"has-fixed-layout\">\n<colgroup><col style=\"width: 317px;\"\/><col style=\"min-width: 25px;\"\/><\/colgroup><tbody><tr><th colspan=\"1\" rowspan=\"1\" colwidth=\"317\"><p>\uacb0\uacfc<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>\uc870\uce58<\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"317\"><p>CRC\uac00 FCS\uc640 \uc77c\uce58\ud568<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\ud504\ub808\uc784 \uc218\ub77d<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"317\"><p>CRC\uac00 FCS\uc640 \uc77c\uce58\ud558\uc9c0 \uc54a\uc74c<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\ud504\ub808\uc784 \uac70\ubd80<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\uc774 \uba54\ucee4\ub2c8\uc998\uc744 \ud1b5\ud574 \uc774\ub354\ub137 \uc7a5\uce58\ub294 \uc804\uc1a1 \uc624\ub958, \uc2e0\ud638 \uc7a1\uc74c \ub610\ub294 \ubb3c\ub9ac \uacc4\uce35 \ubb38\uc81c\ub85c \uc778\ud574 \ubc1c\uc0dd\ud55c \uc190\uc0c1\ub41c \ud328\ud0b7\uc744 \uc2e0\uc18d\ud558\uac8c \uac10\uc9c0\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >\ud504\ub808\uc784 \ud3d0\uae30 \ub3d9\uc791<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\uc7ac\uacc4\uc0b0\ub41c CRC \uac12\uc774 \uc218\uc2e0\ub41c FCS\uc640 \uc77c\uce58\ud558\uc9c0 \uc54a\uc73c\uba74 \uc774\ub354\ub137 \ud504\ub808\uc784\uc774 \uc790\ub3d9\uc73c\ub85c \ud3d0\uae30\ub429\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc190\uc0c1\ub41c \ud504\ub808\uc784\uc758 \uc77c\ubc18\uc801\uc778 \uc6d0\uc778\uc5d0\ub294 \ub2e4\uc74c\uc774 \ud3ec\ud568\ub429\ub2c8\ub2e4:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>\uc190\uc0c1\ub41c \uc774\ub354\ub137 \ucf00\uc774\ube14<\/p><\/li><li><p>\uc624\uc5fc\ub41c \uad11\uc12c\uc720 \ucee4\ub125\ud130<\/p><\/li><li><p><a target=\"_blank\" rel=\"\" href=\"https:\/\/www.rj45-modularjack.com\/news\/what-is-electromagnetic-interference-emi-and-why-it-matters-259389.html\">EMI \uac04\uc12d<\/a><\/p><\/li><li><p>\uacb0\ud568 \uc788\ub294 SFP\/QSFP \uad11\ud559 \ubaa8\ub4c8<\/p><\/li><li><p>\uace0\uc18d \ub9c1\ud06c\uc5d0\uc11c\uc758 \uc2e0\ud638 \ubb34\uacb0\uc131 \ubb38\uc81c<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\uc608\ub97c \ub4e4\uc5b4:<\/p>\n\n\n\n<pre class=\"wp-block-code\">\n<code>\uc6d0\ubcf8 \ub370\uc774\ud130 \u2192 10101010<br>\uc190\uc0c1\ub41c \ub370\uc774\ud130 \u2192 10101110<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\ub2e8\uc77c \ube44\ud2b8 \ubcc0\uacbd\uc774\ub77c\ub3c4 CRC \uac80\uc99d \uc2e4\ud328\ub97c \uc720\ubc1c\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uae30\uc5c5 \ub124\ud2b8\uc6cc\ud06c \ubc0f \ub370\uc774\ud130 \uc13c\ud130\uc5d0\uc11c \uc2a4\uc704\uce58\uc758 CRC\/FCS \uce74\uc6b4\ud130 \uc99d\uac00 \ud604\uc0c1\uc740 \ud2b9\ud788 \uad11\uc12c\uc720 \ub9c1\ud06c \ubc0f \uad11 \ud2b8\ub79c\uc2a4\uc2dc\ubc84 \uc5f0\uacb0\uc5d0\uc11c \ud558\uc704 \uacc4\uce35 \uc804\uc1a1 \ubb38\uc81c\ub97c \ub098\ud0c0\ub0b4\ub294 \uacbd\uc6b0\uac00 \ub9ce\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >\u2705 FCS vs. CRC vs. TCP \uccb4\ud06c\uc12c: \ucc28\uc774\uc810\uc740 \ubb34\uc5c7\uc778\uac00\uc694?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">CRC\ub294 \uc54c\uace0\ub9ac\uc998\uc785\ub2c8\ub2e4. FCS\ub294 \uc774\ub354\ub137 \ud504\ub808\uc784 \ub0b4\ubd80\uc5d0 CRC \uacb0\uacfc\ub97c \uc800\uc7a5\ud558\ub294 \ud544\ub4dc\uc785\ub2c8\ub2e4. TCP \uccb4\ud06c\uc12c\uc740 \ub2e4\ub985\ub2c8\ub2e4. TCP \uccb4\ud06c\uc12c\uc740 \ub808\uc774\uc5b4 4\uc5d0\uc11c \uc791\ub3d9\ud558\uba70 TCP \uc138\uadf8\uba3c\ud2b8\ub97c \ubcf4\ud638\ud558\uc9c0\ub9cc, FCS\ub294 \ub808\uc774\uc5b4 2 \ud504\ub808\uc784\uc744 \ubcf4\ud638\ud569\ub2c8\ub2e4. \uc774\ub7ec\ud55c \uac80\uc0ac\ub294 \uc11c\ub85c \ub2e4\ub978 \uacc4\uce35\uc5d0\uc11c \uc218\ud589\ub418\ubbc0\ub85c \uc11c\ub85c \ub2e4\ub978 \uc2e0\ub8b0\uc131 \ubb38\uc81c\ub97c \ud574\uacb0\ud558\uba70, \uc0c1\ud638 \uad50\ud658 \uac00\ub2a5\ud558\uac8c \uac04\uc8fc\ud574\uc11c\ub294 \uc548 \ub429\ub2c8\ub2e4.<\/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\/7e27c0cf2856496d8df3941e8d3d96e0.jpg\" alt=\"FCS vs. CRC vs. TCP Checksum: What Is the Difference?\" class=\"wp-image-7271\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/7e27c0cf2856496d8df3941e8d3d96e0.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/7e27c0cf2856496d8df3941e8d3d96e0-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/7e27c0cf2856496d8df3941e8d3d96e0-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/7e27c0cf2856496d8df3941e8d3d96e0-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/7e27c0cf2856496d8df3941e8d3d96e0-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" >CRC\ub780 \ubb34\uc5c7\uc778\uac00?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">CRC(Cyclic Redundancy Check, \uc21c\ud658 \uc911\ubcf5 \uac80\uc0ac)\ub294 \uc804\uc1a1 \uc624\ub958\ub97c \uac10\uc9c0\ud558\uae30 \uc704\ud574 \uc0ac\uc6a9\ub418\ub294 \uc218\ud559\uc801 \uc54c\uace0\ub9ac\uc998\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc774\ub354\ub137\uc5d0\uc11c: CRC-32<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">CRC\ub294 \uc774\ub354\ub137 \ud504\ub808\uc784\uc758 \uc774\uc9c4 \ub0b4\uc6a9\uc744 \ubd84\uc11d\ud558\uc5ec \uace0\uc720\ud55c \uac80\uc99d \uac12\uc744 \uc0dd\uc131\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uae30\ubcf8 \uc808\ucc28:<\/p>\n\n\n\n<pre class=\"wp-block-code\">\n<code>\ud504\ub808\uc784 \ub370\uc774\ud130 \u2192 CRC \uacc4\uc0b0 \u2192 FCS\uc5d0 \uc800\uc7a5\ub41c \uacb0\uacfc<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">CRC \uc790\uccb4\ub294 \uac00\uc2dc\uc801\uc778 \ud504\ub808\uc784 \ud544\ub4dc\uac00 \uc544\ub2d9\ub2c8\ub2e4. \ub2e8\uc9c0 FCS \uac12\uc744 \uc0dd\uc131\ud558\uae30 \uc704\ud574 \uc0ac\uc6a9\ub418\ub294 \uacc4\uc0b0 \ubc29\ubc95\uc77c \ubfd0\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >FCS\ub780 \ubb34\uc5c7\uc778\uac00?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">FCS(Frame Check Sequence, \ud504\ub808\uc784 \uac80\uc0ac \uc2dc\ud000\uc2a4)\ub294 \uc774\ub354\ub137 \ud504\ub808\uc784 \ub05d\uc5d0 \uc704\uce58\ud55c \uc2e4\uc81c 4\ubc14\uc774\ud2b8 \ud544\ub4dc\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uac04\ub7b5\ud654\ub41c \uad6c\uc870:<\/p>\n\n\n\n<pre class=\"wp-block-code\">\n<code>| \uc774\ub354\ub137 \ud5e4\ub354 | \ud398\uc774\ub85c\ub4dc | FCS |<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">FCS\uc5d0\ub294 \uc1a1\uc2e0\uc790\uac00 \uacc4\uc0b0\ud55c CRC \uacb0\uacfc\uac00 \ud3ec\ud568\ub418\uc5b4 \uc788\uc2b5\ub2c8\ub2e4. \uc218\uc2e0 \uc7a5\uce58\ub294 CRC\ub97c \ub2e4\uc2dc \uacc4\uc0b0\ud558\uc5ec \uc218\uc2e0\ub41c FCS \uac12\uacfc \ube44\uad50\ud568\uc73c\ub85c\uc368 \ud504\ub808\uc784 \ubb34\uacb0\uc131\uc744 \uac80\uc99d\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uac12\uc774 \uc77c\uce58\ud558\uc9c0 \uc54a\uc73c\uba74:<\/p>\n\n\n\n<pre class=\"wp-block-code\">\n<code>\ud504\ub808\uc784 \uac70\ubd80<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\uc774 \uacfc\uc815\uc740 \ucf00\uc774\ube14 \uacb0\ud568, \uad11 \ubaa8\ub4c8 \ubd88\uc548\uc815\uc131, \uc2e0\ud638 \uc7a1\uc74c \ub610\ub294 \uc804\uc1a1 \uc624\ub958\ub85c \uc778\ud574 \uc190\uc0c1\ub41c \ud504\ub808\uc784\uc744 \uc774\ub354\ub137 \uc7a5\uce58\uac00 \uc2e0\uc18d\ud788 \ud0d0\uc9c0\ud558\ub3c4\ub85d \ub3d5\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >TCP \uccb4\ud06c\uc12c\uc774\ub780 \ubb34\uc5c7\uc778\uac00?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">TCP \uccb4\ud06c\uc12c\uc740 TCP \ud504\ub85c\ud1a0\ucf5c\uc5d0\uc11c \uc0ac\uc6a9\ud558\ub294 \ub808\uc774\uc5b4 4 \ubb34\uacb0\uc131 \uac80\uc0ac \uba54\ucee4\ub2c8\uc998\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">FCS\ub294 \ub85c\uceec \ub9c1\ud06c\uc5d0\uc11c \ub2e8\uc77c \uc774\ub354\ub137 \ud504\ub808\uc784\ub9cc \ubcf4\ud638\ud558\ub294 \ubc18\uba74, TCP \uccb4\ud06c\uc12c\uc740 \uc804\uccb4 \uc5d4\ub4dc\ud22c\uc5d4\ub4dc \ud1b5\uc2e0 \uacbd\ub85c\uc5d0 \uac78\uccd0 TCP \uc138\uadf8\uba3c\ud2b8\ub97c \ubcf4\ud638\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">TCP \uccb4\ud06c\uc12c\uc740 \ub2e4\uc74c\uc744 \uac80\uc99d\ud569\ub2c8\ub2e4:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>TCP \ud5e4\ub354<\/p><\/li><li><p>\ud398\uc774\ub85c\ub4dc \ub370\uc774\ud130<\/p><\/li><li><p>\uc758\uc0ac \ud5e4\ub354(pseudo-header) \uc815\ubcf4<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\uac04\ub7b5\ud654\ub41c \uacfc\uc815:<\/p>\n\n\n\n<pre class=\"wp-block-code\">\n<code>TCP \uc138\uadf8\uba3c\ud2b8 \u2192 \uccb4\ud06c\uc12c \uacc4\uc0b0 \u2192 \uc218\uc2e0\uae30\uc5d0\uc11c \uac80\uc99d<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\uc774\ub354\ub137 \ud504\ub808\uc784\uc774 FCS \uac80\uc0ac\ub97c \uc131\uacf5\uc801\uc73c\ub85c \ud1b5\uacfc\ud558\ub354\ub77c\ub3c4, \ub124\ud2b8\uc6cc\ud06c \uc2a4\ud0dd\uc758 \ub2e4\ub978 \uc704\uce58\uc5d0\uc11c \uc190\uc0c1\uc774 \ubc1c\uc0dd\ud558\uba74 \ub098\uc911\uc5d0 TCP \uccb4\ud06c\uc12c \uac80\uc99d\uc774 \uc2e4\ud328\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >FCS, CRC \ubc0f TCP \uccb4\ud06c\uc12c \uac04 \uc8fc\uc694 \ucc28\uc774\uc810<\/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>\ud56d\ubaa9<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>OSI \uacc4\uce35<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>\ubcf4\ud638 \ub300\uc0c1<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>\uc874\uc7ac \uc704\uce58<\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>FCS<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\ub808\uc774\uc5b4 2<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\uc774\ub354\ub137 \ud504\ub808\uc784<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\uc774\ub354\ub137 \ud504\ub808\uc784 \ub05d<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>CRC<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\ub808\uc774\uc5b4 2 \uac1c\ub150<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\uc624\ub958 \uac10\uc9c0 \uacc4\uc0b0<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>FCS\uc5d0 \uacc4\uc0b0 \ubc0f \uc800\uc7a5\ub428<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>TCP \uccb4\ud06c\uc12c<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\ub808\uc774\uc5b4 4<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>TCP \uc138\uadf8\uba3c\ud2b8<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>TCP \ud5e4\ub354<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" >\u2705 FCS \uc624\ub958\ub294 \uc65c \uc2a4\uc704\uce58, NIC, \uad11\uc12c\uc720 \ub9c1\ud06c \ubc0f \uad11\ud559 \ubaa8\ub4c8\uc5d0\uc11c \ubc1c\uc0dd\ud558\ub098\uc694?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">FCS \uc624\ub958\ub294 \uc77c\ubc18\uc801\uc73c\ub85c \ud504\ub808\uc784\uc774 \uacbd\ub85c \uc0c1\uc758 \uc5b4\ub518\uac00\uc5d0\uc11c \uc190\uc0c1\ub41c \ucc44 \ub3c4\ucc29\ud588\uc74c\uc744 \uc758\ubbf8\ud569\ub2c8\ub2e4. \uc2e4\uc81c \ub124\ud2b8\uc6cc\ud06c\uc5d0\uc11c\ub294 \uadfc\ubcf8 \uc6d0\uc778\uc774 \uc885\uc885 \ubb3c\ub9ac \uacc4\uce35 \ub610\ub294 \ub9c1\ud06c \ud488\uc9c8\uacfc \uad00\ub828\ub418\uc5b4 \uc788\uc2b5\ub2c8\ub2e4: \ubd88\ub7c9\ud55c \ucf00\uc774\ube14, \uc624\uc5fc\ub41c \uad11\uc12c\uc720 \ucee4\ub125\ud130, \ud638\ud658\ub418\uc9c0 \uc54a\ub294 \uad11\ud559 \uc7a5\uce58, \ubd80\uc801\uc808\ud55c \uc778\ud130\ud504\ub808\uc784 \uac2d \ub3d9\uc791, \ub610\ub294 \uace0\uc7a5 \uc9c1\uc804\uc778 \uad11\ud559 \ubaa8\ub4c8 \ub4f1\uc785\ub2c8\ub2e4. \uc2dc\uc2a4\ucf54 \ubb38\uc11c\uc5d0 \ub530\ub974\uba74 CRC\/FCS \uc624\ub958\ub294 \uc5f0\uacb0\ub41c \uae30\uae30\uc5d0\uc11c \uc785\ub825 \uc624\ub958 \ub610\ub294 \ud328\ud0b7 \uc190\uc2e4\ub85c \ub098\ud0c0\ub0a0 \uc218 \uc788\uc73c\uba70, \ubb38\uc81c\ub294 \uc885\uc885 \uc0c1\uc704 \uacc4\uce35 \ud504\ub85c\ud1a0\ucf5c\uc774 \uc544\ub2cc \ub9c1\ud06c \uacbd\ub85c \uc0c1\uc5d0 \uc874\uc7ac\ud569\ub2c8\ub2e4.<\/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\/40fb162a76634c70b44172d8cc18c143.jpg\" alt=\"Why Do FCS Errors Happen on Switches, NICs, Fiber Links, and Optical Modules?\" class=\"wp-image-7272\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/40fb162a76634c70b44172d8cc18c143.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/40fb162a76634c70b44172d8cc18c143-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/40fb162a76634c70b44172d8cc18c143-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/40fb162a76634c70b44172d8cc18c143-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/40fb162a76634c70b44172d8cc18c143-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" >\uad6c\ub9ac \ucf00\uc774\ube14 \ubb38\uc81c<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\uc190\uc0c1\ub418\uc5c8\uac70\ub098 \uc800\ud488\uc9c8\uc758 \uc774\ub354\ub137 \ucf00\uc774\ube14\uc740 FCS \uc624\ub958\uc758 \uac00\uc7a5 \ud754\ud55c \uc6d0\uc778 \uc911 \ud558\ub098\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc77c\ubc18\uc801\uc778 \ubb38\uc81c\uc5d0\ub294 \ub2e4\uc74c\uc774 \ud3ec\ud568\ub429\ub2c8\ub2e4:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>\ub04a\uc5b4\uc9c4 \ucf00\uc774\ube14 \uc30d<\/p><\/li><li><p>\ubd88\ucda9\ubd84\ud55c \ucc28\ud3d0<\/p><\/li><li><p>\uacfc\ub3c4\ud55c \ucf00\uc774\ube14 \uad7d\ud798<\/p><\/li><li><p>\ubd80\uc801\uc808\ud55c \ucf00\uc774\ube14 \uce74\ud14c\uace0\ub9ac<\/p><\/li><li><p>\ub290\uc2a8\ud55c RJ45 \uc5f0\uacb0<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\uc608\ub97c \ub4e4\uc5b4, \uc5f4\ud654\ub41c <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/ko\/knowledge-center\/cat5e-vs-cat6-vs-cat7-ethernet-cable\/\">Cat5e \ucf00\uc774\ube14\uc774<\/a> 10GBASE-T \ud2b8\ub798\ud53d\uc744 \uc804\uc1a1\ud560 \uacbd\uc6b0 \uc804\uc1a1 \uc911 \uc774\ub354\ub137 \ud504\ub808\uc784\uc744 \uc190\uc0c1\uc2dc\ud0a4\ub294 \ube44\ud2b8 \uc624\ub958\ub97c \uc720\ubc1c\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >\uad11\uc12c\uc720 \uc624\uc5fc<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\uc624\uc5fc\ub418\uac70\ub098 \uc190\uc0c1\ub41c \uad11\uc12c\uc720 \ucee4\ub125\ud130\ub294 \ub370\uc774\ud130\uc13c\ud130\uc5d0\uc11c CRC\/FCS \uc624\ub958\uc758 \uc8fc\uc694 \uc6d0\uc778\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">LC \ub610\ub294 MPO \ucee4\ub125\ud130\uc5d0 \ubbf8\uc138\ud55c \uba3c\uc9c0 \uc785\uc790\uc870\ucc28\ub3c4 \ub2e4\uc74c\uc744 \uc720\ubc1c\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>\uad11\uc2e0\ud638 \uac10\uc1e0<\/p><\/li><li><p>\ubc18\uc0ac \uc190\uc2e4<\/p><\/li><li><p>\ube44\ud2b8 \uc624\ub958\uc728(BER) \uc99d\uac00<\/p><\/li><li><p>\ud328\ud0b7 \uc190\uc0c1<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\uc77c\ubc18\uc801\uc778 \uc624\uc5fc \uc6d0\uc778\uc5d0\ub294 \ub2e4\uc74c\uc774 \ud3ec\ud568\ub429\ub2c8\ub2e4:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>LC \ucee4\ub125\ud130\uc758 \uba3c\uc9c0<\/p><\/li><li><p>\uae01\ud78c \ud398\ub8f0<\/p><\/li><li><p>\ubd80\uc801\uc808\ud55c \uccad\uc18c \uc808\ucc28<\/p><\/li><li><p>\uc624\uc5fc\ub41c MPO \ud2b8\ub801\ud06c<\/p><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" >\uad11\ud559 \ubaa8\ub4c8 \ud638\ud658\uc131<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\ud638\ud658\ub418\uc9c0 \uc54a\uac70\ub098 \ubd88\uc548\uc815\ud55c \uad11\ud559 \ubaa8\ub4c8\uc740 \uc5d4\ud130\ud504\ub77c\uc774\uc988 \ud658\uacbd\uc5d0\uc11c \uc790\uc8fc FCS \ubc0f CRC \uc624\ub958\ub97c \uc720\ubc1c\ud569\ub2c8\ub2e4. <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/ko\/knowledge-center\/what-is-a-network-switch\/\">\uc2a4\uc704\uce58<\/a> \ubc0f <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/ko\/knowledge-center\/what-is-servers-components-types-functions\/\">\uc11c\ubc84<\/a>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc601\ud5a5\uc744 \ubc1b\ub294 \uad11\ud559 \uc7a5\uce58\uc5d0\ub294 \ub2e4\uc74c\uc774 \ud3ec\ud568\ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/478230.htm\">SFP \ubaa8\ub4c8<\/a><\/p><\/li><li><p><a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/475415.htm\">SFP+ \ud2b8\ub79c\uc2a4\uc2dc\ubc84<\/a><\/p><\/li><li><p>QSFP\/QSFP28 \uad11\ud559 \ubaa8\ub4c8<\/p><\/li><li><p><a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/ko\/knowledge-center\/direct-attach-cables-dac-in-networking\/\">DAC<\/a> \ubc0f <a target=\"_self\" href=\"https:\/\/resourceslp.szlogic.cn\/ko\/knowledge-center\/aoc-explained-active-optical-cable-benefits-uses-advancements-guide\/\">AOC<\/a> \ucf00\uc774\ube14<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\uc77c\ubc18\uc801\uc778 \uc6d0\uc778\uc5d0\ub294 \ub2e4\uc74c\uc774 \ud3ec\ud568\ub429\ub2c8\ub2e4:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>\ubca4\ub354 \ud638\ud658\uc131 \ubb38\uc81c<\/p><\/li><li><p>\ubd80\uc801\uc808\ud55c <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/ko\/knowledge-center\/how-eeprom-powers-sfp-and-qsfp-optical-modules\/\">EEPROM<\/a> \ub9e4\uac1c\ubcc0\uc218<\/p><\/li><li><p>\ubd88\uc548\uc815\ud55c \ub808\uc774\uc800 \ucd9c\ub825<\/p><\/li><li><p>\ub0ae\uc74c(Poor) <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/ko\/glossary\/digital-signal-processor-functionality-in-optical-transceivers\/\">DSP<\/a> \ud29c\ub2dd<\/p><\/li><li><p>\uc778\uc99d\ub418\uc9c0 \uc54a\uc740 \ud2b8\ub79c\uc2dc\ubc84<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\uc608\uc2dc \uc2dc\ub098\ub9ac\uc624:<\/p>\n\n\n\n<figure class=\"wp-block-table\">\n<table class=\"has-fixed-layout\">\n<colgroup><col style=\"width: 337px;\"\/><col style=\"min-width: 25px;\"\/><\/colgroup><tbody><tr><th colspan=\"1\" rowspan=\"1\" colwidth=\"337\"><p>\uad11\ud559 \ubb38\uc81c<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>\uc77c\ubc18\uc801\uc778 \uc601\ud5a5<\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"337\"><p>\ud638\ud658\ub418\uc9c0 \uc54a\ub294 SFP+ \ubaa8\ub4c8<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\uac04\ud5d0\uc801\uc778 CRC \uc624\ub958<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"337\"><p>\uace0\uc7a5 \uc9c1\uc804\uc778 QSFP28 \uad11\ud559 \uc7a5\uce58<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\ud328\ud0b7 \uc190\uc0c1<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"337\"><p>\uc800\ud488\uc9c8 DAC \ucf00\uc774\ube14<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\uc2e0\ud638 \ubb34\uacb0\uc131 \uc800\ud558<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"337\"><p>\uacfc\uc5f4\ub41c \uad11\ud559 \ubaa8\ub4c8<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\uc784\uc758\uc758 \ud504\ub808\uc784 \ub4dc\ub86d<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\ub9ce\uc740 \uc2e4\uc81c \ubc30\ud3ec \ud658\uacbd\uc5d0\uc11c, \uad11\ud559 \ud2b8\ub79c\uc2dc\ubc84\ub97c \uad50\uccb4\ud558\uba74 \uc9c0\uc18d\uc801\uc778 FCS \ubb38\uc81c\uac00 \uc989\uc2dc \ud574\uacb0\ub429\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >\uc628\ub3c4 \ubc0f \ub178\ud6c4\ud654<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\uad11\ud559 \ubaa8\ub4c8 \ubc0f NIC\ub294 \uc628\ub3c4 \uc0c1\uc2b9 \ub610\ub294 \uad6c\uc131 \uc694\uc18c\uc758 \uc2dc\uac04 \uacbd\uacfc\uc5d0 \ub530\ub978 \ub178\ud654\ub85c \uc778\ud574 \ubd88\uc548\uc815\ud574\uc9c8 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ub178\ud654\uc640 \uad00\ub828\ub41c \uc77c\ubc18\uc801\uc778 \ubb38\uc81c\uc5d0\ub294 \ub2e4\uc74c\uc774 \ud3ec\ud568\ub429\ub2c8\ub2e4:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>\ub808\uc774\uc800 \ucd9c\ub825 \uac10\uc18c<\/p><\/li><li><p>\uc5f4 \ub4dc\ub9ac\ud504\ud2b8<\/p><\/li><li><p>BER \uc99d\uac00<\/p><\/li><li><p>\ubd88\uc548\uc815\ud568 <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/ko\/glossary\/clock-and-data-recovery-in-modern-communication-systems\/\">\ud074\ub85d \ubcf5\uad6c<\/a><\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\uc77c\ubc18\uc801\uc778 \ub3d9\uc791:<\/p>\n\n\n\n<figure class=\"wp-block-table\">\n<table class=\"has-fixed-layout\">\n<colgroup><col style=\"width: 310px;\"\/><col style=\"min-width: 25px;\"\/><\/colgroup><tbody><tr><th colspan=\"1\" rowspan=\"1\" colwidth=\"310\"><p>\uc870\uac74<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>\ud754\ud55c \uc99d\uc0c1<\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"310\"><p>\uc2a4\uc704\uce58 \uc628\ub3c4 \uc0c1\uc2b9<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>CRC \uae09\uc99d<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"310\"><p>\ub178\ud6c4\ud654\ub41c SFP \ubaa8\ub4c8<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\uac04\ud5d0\uc801 \ud328\ud0b7 \uc190\uc2e4<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"310\"><p>\uc7a5\uc2dc\uac04 \uac00\ub3d9<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\uc778\ud130\ud398\uc774\uc2a4 \uc624\ub958 \uc99d\uac00<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"310\"><p>\ub192\uc740 \ud2b8\ub798\ud53d \ubd80\ud558<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\ub9c1\ud06c \ubd88\uc548\uc815\uc131<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\uc774\uac83\uc774 \ubc14\ub85c <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/ko\/knowledge-center\/what-is-a-data-center\/\">\ub370\uc774\ud130 \uc13c\ud130<\/a> \uc6b4\uc601\uc790\uac00 DOM\/DDM \uac12(\uc608: \ub2e4\uc74c \uac12\ub4e4)\uc744 \uc790\uc8fc \ubaa8\ub2c8\ud130\ub9c1\ud558\ub294 \uc774\uc720\uc785\ub2c8\ub2e4:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>\uc1a1\uc2e0 \uc804\ub825(Tx power)<\/p><\/li><li><p>\uc218\uc2e0 \uc804\ub825(Rx power)<\/p><\/li><li><p>\ubaa8\ub4c8 \uc628\ub3c4<\/p><\/li><li><p>\ubc14\uc774\uc5b4\uc2a4 \uc804\ub958<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\uc644\uc804\ud55c \ub9c1\ud06c \uc7a5\uc560 \ubc1c\uc0dd \uc774\uc804\uc5d0 \uace0\uc7a5 \ub09c \uad11\ud559 \uc7a5\uce58\ub97c \uc2dd\ubcc4\ud558\uae30 \uc704\ud574.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >\ud328\ud0b7 \uac04 \uac04\uaca9(IPG) \ubc0f \ud0c0\uc774\ubc0d \ub3d9\uc791<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\uc774\ub354\ub137 \ud0c0\uc774\ubc0d \ub3d9\uc791\uc774 \ubd88\uc548\uc815\ud574\uc9c8 \uacbd\uc6b0 FCS \uc624\ub958\ub3c4 \ubc1c\uc0dd\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ucd5c\uc2e0 \uc774\ub354\ub137 \ub9c1\ud06c\ub294 \ud504\ub808\uc784 \uac04 \uc815\ud655\ud55c \ud0c0\uc774\ubc0d(\uc801\uc808\ud55c \ud328\ud0b7 \uac04 \uac04\uaca9(IPG) \ub3d9\uc791 \ud3ec\ud568)\uc5d0 \uc758\uc874\ud569\ub2c8\ub2e4. \ud504\ub808\uc784\uc774 \ub108\ubb34 \ubc00\uc811\ud558\uac8c \uc804\uc1a1\ub418\uac70\ub098 \ud0c0\uc774\ubc0d \ub3d9\uae30\ud654\uac00 \ubd88\uc548\uc815\ud574\uc9c0\uba74, \uc218\uc2e0\uae30\uac00 \ud504\ub808\uc784 \uacbd\uacc4\ub97c \uc798\ubabb \ud574\uc11d\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc7a0\uc7ac\uc801 \uc6d0\uc778\uc5d0\ub294 \ub2e4\uc74c\uc774 \ud3ec\ud568\ub429\ub2c8\ub2e4:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>\uacb0\ud568 \uc788\ub294 NIC \ud38c\uc6e8\uc5b4<\/p><\/li><li><p>PHY \ud0c0\uc774\ubc0d \ubd88\uc548\uc815\uc131<\/p><\/li><li><p>\uc2a4\uc704\uce58 ASIC \ubb38\uc81c<\/p><\/li><li><p>\uace0\uc18d \ub9c1\ud06c\uc5d0\uc11c\uc758 \uc2e0\ud638 \uc9c0\ud130<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\uac04\ub7b5\ud654\ub41c \uacfc\uc815:<\/p>\n\n\n\n<pre class=\"wp-block-code\">\n<code>\ud0c0\uc774\ubc0d \ubd88\uc548\uc815\uc131<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\ucf00\uc774\ube14 \ub610\ub294 \uad11\ud559 \ubb38\uc81c\ubcf4\ub2e4\ub294 \ub35c \ud754\ud558\uc9c0\ub9cc, \ud0c0\uc774\ubc0d \uad00\ub828 FCS \ubb38\uc81c\ub294 \ub2e4\uc74c\uacfc \uac19\uc740 \uace0\uc18d \uc774\ub354\ub137 \ud658\uacbd\uc5d0\uc11c \ub354\uc6b1 \uc911\uc694\ud574\uc9d1\ub2c8\ub2e4:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>100G \uc774\ub354\ub137<\/p><\/li><li><p>400G \uc774\ub354\ub137<\/p><\/li><li><p>AI \ud074\ub7ec\uc2a4\ud130 \ub124\ud2b8\uc6cc\ud06c<\/p><\/li><li><p>\ucd08\ub300\uaddc\ubaa8 \ub370\uc774\ud130 \uc13c\ud130<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\uc774\ub7ec\ud55c \ud658\uacbd\uc5d0\uc11c\ub294 \ub9e4\uc6b0 \ubbf8\uc138\ud55c \ud0c0\uc774\ubc0d \ub610\ub294 \uc2e0\ud638 \ubb34\uacb0\uc131 \ubb38\uc81c\uc870\ucc28\ub3c4 \uc2a4\uc704\uce58 \uc778\ud130\ud398\uc774\uc2a4 \uc804\ubc18\uc5d0 \uac78\uccd0 CRC\/FCS \uce74\uc6b4\ud130\ub97c \uae09\uaca9\ud788 \uc99d\uac00\uc2dc\ud0ac \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >\u2705 \uc2e4\uc81c \ub124\ud2b8\uc6cc\ud06c\uc5d0\uc11c CRC\/FCS \uc624\ub958 \uc9c4\ub2e8 \ubc29\ubc95<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">CRC\/FCS \uc624\ub958\ub97c \uc9c4\ub2e8\ud558\ub294 \uac00\uc7a5 \ud6a8\uacfc\uc801\uc778 \ubc29\ubc95\uc740 \ubb3c\ub9ac\uc801 \ub9c1\ud06c\ub97c \ub2e8\uacc4\uc801\uc73c\ub85c \uaca9\ub9ac\ud558\ub294 \uac83\uc785\ub2c8\ub2e4. \uc2e4\uc0ac\uc6a9 \uc774\ub354\ub137 \ub124\ud2b8\uc6cc\ud06c\uc5d0\uc11c \uc190\uc0c1\ub41c \ud504\ub808\uc784\uc740 \uc77c\ubc18\uc801\uc73c\ub85c \ucf00\uc774\ube14, \uad11\uc12c\uc720 \ub9c1\ud06c, \uad11\ud559 \ubaa8\ub4c8 \ub610\ub294 \uc2e0\ud638 \ud488\uc9c8 \ubb38\uc81c\ub85c \uc778\ud574 \ubc1c\uc0dd\ud558\uba70, \uc0c1\uc704 \uacc4\uce35 \ud504\ub85c\ud1a0\ucf5c \ub54c\ubb38\uc774 \uc544\ub2d9\ub2c8\ub2e4. \ub124\ud2b8\uc6cc\ud06c \uc5d4\uc9c0\ub2c8\uc5b4\ub294 \ubcf4\ud1b5 \uac04\ub2e8\ud55c \u201c\uc810\uac80 \u2192 \uad50\uccb4 \u2192 \ube44\uad50\u201d \uc6cc\ud06c\ud50c\ub85c\uc6b0\ub97c \ub530\ub985\ub2c8\ub2e4: \ucf00\uc774\ube14 \ub610\ub294 \uad11\uc12c\uc720 \uacbd\ub85c\ub97c \uc810\uac80\ud558\uace0, \ucee4\ub125\ud130\ub97c \uccad\uc18c\ud558\uba70, SFP\/QSFP \uad11\ud559 \uc7a5\uce58\ub97c \uad50\uccb4\ud558\uace0, \uc591\ucabd \ub05d \uc778\ud130\ud398\uc774\uc2a4 \uce74\uc6b4\ud130\ub97c \ube44\uad50\ud558\uba70, \ubd88\uc548\uc815\ud55c \ub9c1\ud06c\ub97c \uc2dd\ubcc4\ud558\uae30 \uc704\ud574 DOM\/DDM \uc9c4\ub2e8 \uac12\uc744 \uac80\ud1a0\ud569\ub2c8\ub2e4.<\/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\/9dfdfe7a7a83414a93769dc2f15ac38f.jpg\" alt=\"How to Troubleshoot CRC\/FCS Errors in Real Networks\" class=\"wp-image-7273\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/9dfdfe7a7a83414a93769dc2f15ac38f.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/9dfdfe7a7a83414a93769dc2f15ac38f-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/9dfdfe7a7a83414a93769dc2f15ac38f-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/9dfdfe7a7a83414a93769dc2f15ac38f-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/9dfdfe7a7a83414a93769dc2f15ac38f-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\uc9c0\uc18d\uc801\uc778 CRC\/FCS \uc624\ub958\ub294 \uc808\ub300 \ubb34\uc2dc\ud574\uc11c\ub294 \uc548 \ub418\uba70, \ud2b9\ud788 10G, 25G, 100G \ub610\ub294 400G \uc774\ub354\ub137 \ub9c1\ud06c\uc5d0\uc11c\ub294 \ube44\ud2b8 \uc624\ub958\uc728(BER)\uc774 \uc57d\uac04\uc774\ub77c\ub3c4 \uc99d\uac00\ud558\ub354\ub77c\ub3c4 \ud328\ud0b7 \uc190\uc2e4 \ubc0f \uc7ac\uc804\uc1a1\uc73c\ub85c \uc774\uc5b4\uc9c8 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >\ub2e8\uacc4 1: \uc778\ud130\ud398\uc774\uc2a4 \uce74\uc6b4\ud130 \ud655\uc778<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\uc2a4\uc704\uce58, \ub77c\uc6b0\ud130 \ub610\ub294 \uc11c\ubc84\uc5d0\uc11c \uc774\ub354\ub137 \uc778\ud130\ud398\uc774\uc2a4 \ud1b5\uacc4\ub97c \uba3c\uc800 \ud655\uc778\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc77c\ubc18 \uba85\ub839\uc5b4: <code>show interface<\/code><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ub610\ub294 \ub9ac\ub205\uc2a4\uc5d0\uc11c: <code>ethtool -S eth0<\/code><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ub2e4\uc74c \uce74\uc6b4\ud130\ub97c \ud655\uc778\ud558\uc138\uc694:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>CRC \uc624\ub958<\/p><\/li><li><p>FCS \uc624\ub958<\/p><\/li><li><p>\uc785\ub825 \uc624\ub958<\/p><\/li><li><p>\uc815\ub82c \uc624\ub958(alignment errors)<\/p><\/li><li><p>\ud328\ud0b7 \ub4dc\ub86d<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\uc77c\ubc18\uc801\uc778 \ud574\uc11d:<\/p>\n\n\n\n<figure class=\"wp-block-table\">\n<table class=\"has-fixed-layout\">\n<colgroup><col style=\"width: 314px;\"\/><col style=\"min-width: 25px;\"\/><\/colgroup><tbody><tr><th colspan=\"1\" rowspan=\"1\" colwidth=\"314\"><p>\uce74\uc6b4\ud130 \ub3d9\uc791<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>\uac00\ub2a5\ud55c \uc6d0\uc778<\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"314\"><p>CRC\uac00 \ucc9c\ucc9c\ud788 \uc99d\uac00\ud568<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\ubbf8\uc138\ud55c \uc2e0\ud638 \ubb38\uc81c<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"314\"><p>FCS\uac00 \uae09\uaca9\ud788 \uc99d\uac00\ud568<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\ubb3c\ub9ac \uacc4\uce35 \ubd88\uc548\uc815\uc131<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"314\"><p>\ud55c\ucabd\uc5d0\uc11c\ub9cc \uc624\ub958 \ubc1c\uc0dd<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Tx\/Rx \ubb38\uc81c<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"314\"><p>\uc591\ucabd \ub05d\uc5d0\uc11c \ubaa8\ub450 \uc624\ub958 \ubc1c\uc0dd<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\ucf00\uc774\ube14 \ub610\ub294 \uad11\uc12c\uc720 \ubb38\uc81c<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\uce74\uc6b4\ud130\uac00 \uacc4\uc18d \uc99d\uac00\ud558\ub294\uc9c0 \uc5ec\ubd80\ub97c \ucd94\uc801\ud558\ub294 \uac83\uc740 \uac04\ud5d0\uc801 \uacb0\ud568\uc744 \uc2dd\ubcc4\ud558\ub294 \ub370 \ub9e4\uc6b0 \uc911\uc694\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >\ub2e8\uacc4 2: \ud328\uce58 \ucf54\ub4dc \uad50\uccb4<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\ud328\uce58 \ucf54\ub4dc\ub294 \uac00\uc7a5 \uc27d\uac8c \uace0\uc7a5\ub098\uace0 \ud754\ud788 \ubc1c\uc0dd\ud558\ub294 \uacb0\ud568 \uc9c0\uc810 \uc911 \ud558\ub098\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uad6c\ub9ac \ub9c1\ud06c\uc758 \uacbd\uc6b0:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>RJ45 \ucf00\uc774\ube14\uc744 \uad50\uccb4\ud558\uc138\uc694.<\/p><\/li><li><p>\ucf00\uc774\ube14 \ub4f1\uae09\uc744 \ud655\uc778\ud558\uc138\uc694(<a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/ko\/knowledge-center\/cat5e-vs-cat6-vs-cat6a-for-copper-sfp\/\">Cat5e\/Cat6\/Cat6A<\/a>)<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\uad11\uc12c\uc720 \ub9c1\ud06c\uc758 \uacbd\uc6b0:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>LC-LC \uc810\ud37c\ub97c \uad50\uccb4\ud558\uc138\uc694.<\/p><\/li><li><p>MPO \ucee4\ub125\ud130\ub97c \uc810\uac80\ud558\uc138\uc694.<\/p><\/li><li><p>\uad11\uc12c\uc720 \ub9d0\ub2e8\uba74\uc744 \uc801\uc808\ud788 \uccad\uc18c\ud558\uc138\uc694.<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\uc77c\ubc18\uc801\uc778 \uad11\uc12c\uc720 \ubb38\uc81c\uc5d0\ub294 \ub2e4\uc74c\uc774 \ud3ec\ud568\ub429\ub2c8\ub2e4:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>\uba3c\uc9c0 \uc624\uc5fc<\/p><\/li><li><p>\uad11\uc12c\uc720 \uad74\uace1<\/p><\/li><li><p>\ucee4\ub125\ud130 \uc190\uc0c1<\/p><\/li><li><p>\uacfc\ub3c4\ud55c \uc0bd\uc785 \uc190\uc2e4<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\ub9ce\uc740 \uacbd\uc6b0, \uc800\ud488\uc9c8 \ub610\ub294 \uc190\uc0c1\ub41c \ud328\uce58 \ucf54\ub4dc\ub97c \uad50\uccb4\ud558\uba74 CRC\/FCS \uc624\ub958\uac00 \uc989\uc2dc \uc0ac\ub77c\uc9d1\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >\ub2e8\uacc4 3: \uad11\ud559 \ubaa8\ub4c8 \uad50\uccb4<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\uc624\ub958\uac00 \uacc4\uc18d\ub418\uba74 \uad11\ud559 \ud2b8\ub79c\uc2a4\uc2dc\ubc84\ub97c \uad50\uccb4\ud558\uc138\uc694.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc601\ud5a5\uc744 \ubc1b\ub294 \uc7a5\uce58\uc5d0\ub294 \ub2e4\uc74c\uc774 \ud3ec\ud568\ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>SFP \ubaa8\ub4c8<\/p><\/li><li><p><a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/475586.htm\">SFP+ \uad11\ud559 \ubaa8\ub4c8<\/a><\/p><\/li><li><p>QSFP\/<a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/482749.htm\">QSFP28 \ud2b8\ub79c\uc2a4\uc2dc\ubc84 \uc0ac\uc774\uc5d0\uc11c \uc120\ud0dd\ud558\ub294 \uac83\uc785\ub2c8\ub2e4.<\/a><\/p><\/li><li><p>DAC\/AOC \ucf00\uc774\ube14<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\uace0\uc7a5\ub09c \uad11\ud559 \uc7a5\uce58\uc758 \uc77c\ubc18\uc801\uc778 \uc99d\uc0c1:<\/p>\n\n\n\n<figure class=\"wp-block-table\">\n<table class=\"has-fixed-layout\">\n<colgroup><col style=\"width: 306px;\"\/><col style=\"min-width: 25px;\"\/><\/colgroup><tbody><tr><th colspan=\"1\" rowspan=\"1\" colwidth=\"306\"><p>\uc99d\uc0c1<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>\uac00\ub2a5\ud55c \uc6d0\uc778<\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"306\"><p>\uac04\ud5d0\uc801\uc778 CRC \uc624\ub958<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\ubd88\uc548\uc815\ud55c \ub808\uc774\uc800<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"306\"><p>\ub9c1\ud06c \ud50c\ub798\ud551<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\uad11\ud559 \uc7a5\uce58 \uacfc\uc5f4<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"306\"><p>\ud328\ud0b7 \uc190\uc0c1<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>DSP \ubd88\uc548\uc815\uc131<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"306\"><p>\ub192\uc740 BER<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\ub178\ud6c4\ud654\ub41c \ud2b8\ub79c\uc2a4\uc2dc\ubc84<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\uac04\ub2e8\ud55c \uad11\ud559 \uc7a5\uce58 \uad50\uccb4\ub294 \ud2b8\ub79c\uc2a4\uc2dc\ubc84\uac00 \uacb0\ud568\uc774 \uc788\ub294\uc9c0 \uc5ec\ubd80\ub97c \ud655\uc778\ud558\ub294 \uac00\uc7a5 \ube60\ub978 \ubc29\ubc95\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >\ub2e8\uacc4 4: \ub9c1\ud06c \uc591\ucabd \ub05d \ube44\uad50<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\uc774\ub354\ub137 \uc5f0\uacb0\uc758 \uc591\ucabd \ub05d \uc778\ud130\ud398\uc774\uc2a4 \ud1b5\uacc4\ub97c \ud56d\uc0c1 \ube44\uad50\ud558\uc138\uc694.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc608\uc2dc:<\/p>\n\n\n\n<pre class=\"wp-block-code\">\n<code>Switch A \u2194 Fiber Link \u2194 Switch B<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\uc810\uac80\ud560 \uc9c8\ubb38:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>\uc591\ucabd \ub05d\uc5d0\uc11c \ubaa8\ub450 \uc624\ub958\uac00 \uc99d\uac00\ud558\uace0 \uc788\uc2b5\ub2c8\uae4c?<\/p><\/li><li><p>CRC\/FCS \uc624\ub958\ub97c \ubcf4\uace0\ud558\ub294 \ucabd\uc774 \ud55c\ucabd\ubfd0\uc785\ub2c8\uae4c?<\/p><\/li><li><p>\uc1a1\uc2e0 \ucabd\uc774 \uc548\uc815\uc801\uc778\uac00\uc694?<\/p><\/li><li><p>\ud328\ud0b7 \ub4dc\ub86d\uc774 \ub300\uce6d\uc801\uc778\uac00\uc694?<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\uc77c\ubc18 \uaddc\uce59:<\/p>\n\n\n\n<figure class=\"wp-block-table\">\n<table class=\"has-fixed-layout\">\n<colgroup><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><\/colgroup><tbody><tr><th colspan=\"1\" rowspan=\"1\"><p>\uad00\uce21 \uacb0\uacfc<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>\uac00\ub2a5\uc131\uc774 \ub192\uc740 \uc6d0\uc778<\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>\uc591\ucabd\uc5d0\uc11c \ubaa8\ub450 \uc624\ub958 \ubc1c\uc0dd<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\uad11\uc12c\uc720 \ub610\ub294 \ucf00\uc774\ube14 \ubb38\uc81c<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>\ud55c\ucabd\uc5d0\uc11c\ub9cc \ubc1c\uc0dd<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>Tx\/Rx \ud558\ub4dc\uc6e8\uc5b4 \ubb38\uc81c<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>\uace0\ubd80\ud558 \uc2dc\uc5d0\ub9cc \ubc1c\uc0dd<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\uc2e0\ud638 \ubb34\uacb0\uc131 \ubb38\uc81c<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>\uad11\ud559 \uc7a5\uce58 \uad50\uccb4 \ud6c4\uc5d0\ub3c4 \uc624\ub958 \ubc1c\uc0dd<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\uc2a4\uc704\uce58\/NIC \ubb38\uc81c<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\uc774 \ube44\uad50\ub97c \ud1b5\ud574 \ubb38\uc81c\uac00 \ub9c1\ud06c, \uad11\ud559 \ubaa8\ub4c8, \ub610\ub294 \uc778\ud130\ud398\uc774\uc2a4 \ud558\ub4dc\uc6e8\uc5b4 \uc790\uccb4\uc5d0\uc11c \ube44\ub86f\ub418\ub294\uc9c0 \uc5ec\ubd80\ub97c \uaca9\ub9ac\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >\ub2e8\uacc4 5: DDM\/DOM \uc9c4\ub2e8 \uac80\ud1a0<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\ucd5c\uc2e0 \uad11\ud559 \ubaa8\ub4c8\uc740 <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/ko\/glossary\/ddm-dom-in-optical-transceivers\/\">DOM\/DDM<\/a> \uc2e4\uc2dc\uac04 \uad11\ud559 \uc9c4\ub2e8\uc744 \uc81c\uacf5\ud558\ub294 <em>\ubaa8\ub2c8\ud130\ub9c1<\/em>\uc744 \uc9c0\uc6d0\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc77c\ubc18\uc801\uc778 \uacbd\uace0 \uc2e0\ud638:<\/p>\n\n\n\n<figure class=\"wp-block-table\">\n<table class=\"has-fixed-layout\">\n<colgroup><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><\/colgroup><tbody><tr><th colspan=\"1\" rowspan=\"1\"><p>DOM\/DDM \uce21\uc815\uac12<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>\uac00\ub2a5\ud55c \ubb38\uc81c<\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>\ub0ae\uc740 \uc218\uc2e0(Rx) \uc804\ub825<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\uc624\uc5fc\ub41c \uad11\uc12c\uc720 \ub610\ub294 \uac10\uc1e0<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>\ub192\uc740 \uc628\ub3c4<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\ub0c9\uac01 \ubb38\uc81c<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>\ub192\uc740 \ubc14\uc774\uc5b4\uc2a4 \uc804\ub958<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\ub178\ud654\ub41c \ub808\uc774\uc800<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>\ubd88\uc548\uc815\ud55c \uc804\ub825<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\ubd88\uc548\uc815\ud55c \uad11\ud559 \uc7a5\uce58<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\uc608\ub97c \ub4e4\uc5b4, <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/482487.htm\">\ubd88\uc548\uc815\ud55c \uc218\uc2e0(Rx) \uc804\ub825\uc744 \uac16\ub294 <em>QSFP28 \ubaa8\ub4c8<\/em>\uc740 \ub9c1\ud06c\uac00 \uc815\uc0c1 \uc791\ub3d9 \uc911\uc778 \uac83\ucc98\ub7fc \ubcf4\uc77c \ub54c\ub3c4 \uac04\ud5d0\uc801\uc778 CRC\/FCS \uc624\ub958\ub97c \ubc1c\uc0dd\uc2dc\ud0ac \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/a> 100G \ubc0f 400G \ub124\ud2b8\uc6cc\ud06c\uc640 \uac19\uc740 \uace0\uc18d \uc774\ub354\ub137 \ud658\uacbd\uc5d0\uc11c\ub294 \uc644\uc804\ud55c \ub9c1\ud06c \uc7a5\uc560\uac00 \ubc1c\uc0dd\ud558\uae30 \uc804\uc5d0 \uc228\uaca8\uc9c4 \uad11\ud559 \uacc4\uce35 \ubb38\uc81c\ub97c \uc2dd\ubcc4\ud558\uae30 \uc704\ud574 DOM\/DDM \ubaa8\ub2c8\ud130\ub9c1\uc774 \uc885\uc885 \ud544\uc218\uc801\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ub9ce\uc740 \ub124\ud2b8\uc6cc\ud06c \uc5d4\uc9c0\ub2c8\uc5b4\ub294 \ud328\ud0b7 \ucea1\ucc98 \ub0b4\uc5d0\uc11c 4\ubc14\uc774\ud2b8 \ud504\ub808\uc784 \uccb4\ud06c \uc2dc\ud000\uc2a4(FCS)\ub97c \ud655\uc778\ud558\ub824\uace0 \uae30\ub300\ud558\uc9c0\ub9cc, \ub300\ubd80\ubd84\uc758 \uacbd\uc6b0 Wireshark\ub294 \ub124\ud2b8\uc6cc\ud06c \uc778\ud130\ud398\uc774\uc2a4 \uce74\ub4dc(NIC)\ub85c\ubd80\ud130 FCS \ud544\ub4dc\ub97c \uc804\ud600 \uc218\uc2e0\ud558\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4. \ucd5c\uc2e0 NIC \ubc0f \uc6b4\uc601\uccb4\uc81c\ub294 \ud328\ud0b7\uc744 \ucea1\ucc98 \uc18c\ud504\ud2b8\uc6e8\uc5b4\ub85c \uc804\ub2ec\ud558\uae30 \uc804\uc5d0 FCS\ub97c \uc81c\uac70\ud558\ub294 \uacbd\uc6b0\uac00 \ub9ce\uc2b5\ub2c8\ub2e4. \ub530\ub77c\uc11c \uc2a4\uc704\uce58, \ub77c\uc6b0\ud130 \ub610\ub294 NIC\uac00 \ubb3c\ub9ac \uc778\ud130\ud398\uc774\uc2a4\uc5d0\uc11c CRC\/FCS \uc624\ub958\ub97c \ubcf4\uace0\ud558\uace0 \uc788\uc74c\uc5d0\ub3c4 \ubd88\uad6c\ud558\uace0 Wireshark \uc0c1\uc5d0\uc11c\ub294 \ud328\ud0b7\uc774 \uc815\uc0c1\uc801\uc73c\ub85c \ubcf4\uc77c \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >\u2705 \uc65c Wireshark\ub294 \uc885\uc885 FCS\ub97c \ud45c\uc2dc\ud558\uc9c0 \uc54a\ub098\uc694?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\uc774 \ub3d9\uc791\uc740 \uc774\ub354\ub137 \uc190\uc0c1 \ubb38\uc81c\ub97c \ud574\uacb0\ud560 \ub54c \uac00\uc7a5 \ud754\ud788 \ud63c\ub780\uc744 \uc720\ubc1c\ud558\ub294 \uc6d0\uc778 \uc911 \ud558\ub098\uc785\ub2c8\ub2e4.<\/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\/f1916b7d68e340fabd50746e1a0bcd16.jpg\" alt=\"Why Does Wireshark Often Not Show FCS?\" class=\"wp-image-7274\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/f1916b7d68e340fabd50746e1a0bcd16.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/f1916b7d68e340fabd50746e1a0bcd16-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/f1916b7d68e340fabd50746e1a0bcd16-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/f1916b7d68e340fabd50746e1a0bcd16-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/f1916b7d68e340fabd50746e1a0bcd16-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\ucea1\ucc98\ub41c \ud328\ud0b7 \ub300\ube44 \uc2e4\uc81c \uc804\uc120\uc0c1 \ud504\ub808\uc784.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >Wireshark\uc5d0 \ud45c\uc2dc\ub418\ub294 \ud328\ud0b7\uc740 \uc804\uc120\uc0c1\uc5d0\uc11c \uc804\uc1a1\ub41c \uc6d0\ub798 \uc774\ub354\ub137 \ud504\ub808\uc784\uacfc \ud56d\uc0c1 \ub3d9\uc77c\ud558\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4.<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\uc2e4\uc81c \uc774\ub354\ub137 \uc804\uc1a1:.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Wireshark\uac00 \uc77c\ubc18\uc801\uc73c\ub85c \uc218\uc2e0\ud558\ub294 \ub0b4\uc6a9:<\/p>\n\n\n\n<pre class=\"wp-block-code\">\n<code>| \uc774\ub354\ub137 \ud5e4\ub354 | \ud398\uc774\ub85c\ub4dc | FCS |<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">| \uc774\ub354\ub137 \ud5e4\ub354 | \ud398\uc774\ub85c\ub4dc |<\/p>\n\n\n\n<pre class=\"wp-block-code\">\n<code>NIC\uac00 \ud328\ud0b7\uc744 \uc6b4\uc601\uccb4\uc81c\ub85c \uc804\ub2ec\ud558\uae30 \uc804\uc5d0 FCS\ub97c \uc81c\uac70\ud558\uae30 \ub54c\ubb38\uc5d0 \ucea1\ucc98 \uc18c\ud504\ud2b8\uc6e8\uc5b4\ub294 \uc6d0\ub798\uc758 4\ubc14\uc774\ud2b8 FCS \ud544\ub4dc\ub97c \uacb0\ucf54 \ubcfc \uc218 \uc5c6\uc2b5\ub2c8\ub2e4.<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\ub530\ub77c\uc11c \ub2e4\uc74c \uc774\uc720\ub85c:.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Wireshark\ub294 FCS \ud544\ub4dc\ub97c \ud45c\uc2dc\ud558\uc9c0 \uc54a\uc744 \uc218 \uc788\uc2b5\ub2c8\ub2e4<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>\ud328\ud0b7 \uae38\uc774\uac00 \ub354 \uc9e7\uac8c \ub098\ud0c0\ub0a9\ub2c8\ub2e4<\/p><\/li><li><p>\uc2a4\uc704\uce58 \uc778\ud130\ud398\uc774\uc2a4\uc5d0\uc11c \uc5ec\uc804\ud788 CRC \uc624\ub958\uac00 \ubc1c\uc0dd\ud569\ub2c8\ub2e4<\/p><\/li><li><p>NIC \uc624\ud504\ub85c\ub4dc \ub3d9\uc791<\/p><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" >\ucd5c\uc2e0 NIC\ub294 \uc131\ub2a5 \ud5a5\uc0c1\uc744 \uc704\ud574 \ub9ce\uc740 \uc774\ub354\ub137 \uc791\uc5c5\uc744 \ud558\ub4dc\uc6e8\uc5b4 \ucc28\uc6d0\uc5d0\uc11c \uc9c1\uc811 \uc218\ud589\ud569\ub2c8\ub2e4.<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\uc77c\ubc18\uc801\uc778 \ud558\ub4dc\uc6e8\uc5b4 \uc624\ud504\ub85c\ub4dc \uae30\ub2a5\uc5d0\ub294 \ub2e4\uc74c\uc774 \ud3ec\ud568\ub429\ub2c8\ub2e4:.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">FCS \uc0dd\uc131<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>CRC \uac80\uc99d<\/p><\/li><li><p>TCP \uccb4\ud06c\uc12c \uc624\ud504\ub85c\ub4dc<\/p><\/li><li><p>TCP \uccb4\ud06c\uc12c \uc624\ud504\ub85c\ub4dc<\/p><\/li><li><p>\uc138\uadf8\uba58\ud14c\uc774\uc158 \uc624\ud504\ub85c\ub4dc<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\ub300\ubd80\ubd84\uc758 \uc2dc\uc2a4\ud15c\uc5d0\uc11c NIC\ub294 \ud328\ud0b7\uc774 Wireshark\uc5d0 \ub3c4\ub2ec\ud558\uae30 \uc804\uc5d0 CRC\/FCS\ub97c \uac80\uc99d\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ucc98\ub9ac \ud750\ub984:<\/p>\n\n\n\n<pre class=\"wp-block-code\">\n<code>\uc774\ub354\ub137 \ud504\ub808\uc784 \uc218\uc2e0<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\ud504\ub808\uc784\uc774 CRC \uac80\uc99d\uc5d0 \uc2e4\ud328\ud560 \uacbd\uc6b0, NIC\ub294 \uc6b4\uc601 \uccb4\uc81c\ub85c \uc804\ub2ec\ud558\ub294 \ub300\uc2e0 \ud504\ub808\uc784\uc744 \uc989\uc2dc \ud3d0\uae30\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uacb0\uacfc\uc801\uc73c\ub85c, \uc190\uc0c1\ub41c \ud328\ud0b7\uc740 \uc778\ud130\ud398\uc774\uc2a4 \uce74\uc6b4\ud130\uac00 \uacc4\uc18d \uc99d\uac00\ud568\uc5d0\ub3c4 \ubd88\uad6c\ud558\uace0 \ud328\ud0b7 \ucea1\ucc98\uc5d0\uc11c\ub294 \uc885\uc885 \ubcf4\uc774\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >\uc65c \ud328\ud0b7 \uae38\uc774\uac00 \uae30\ub300\ubcf4\ub2e4 \uc9e7\uac8c \ud45c\uc2dc\ub418\ub294\uac00<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\uc774\ub354\ub137 FCS\ub294 \ud504\ub808\uc784 \ub05d\uc5d0 4\ubc14\uc774\ud2b8\ub97c \ucd94\uac00\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc774\ub860\uc801\uc73c\ub85c:<\/p>\n\n\n\n<pre class=\"wp-block-code\">\n<code>\uc774\ub354\ub137 \ud504\ub808\uc784 \uae38\uc774<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\uadf8\ub7ec\ub098 FCS\ub294 \uc77c\ubc18\uc801\uc73c\ub85c NIC\uc5d0 \uc758\ud574 \uc81c\uac70\ub418\ubbc0\ub85c, Wireshark\ub294 \uc2e4\uc81c \uc640\uc774\uc5b4 \uc0c1 \uc804\uc1a1 \uae38\uc774\ubcf4\ub2e4 4\ubc14\uc774\ud2b8 \uc9e7\uc740 \ud504\ub808\uc784 \uae38\uc774\ub97c \ud45c\uc2dc\ud558\ub294 \uacbd\uc6b0\uac00 \ub9ce\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc608\uc2dc:<\/p>\n\n\n\n<figure class=\"wp-block-table\">\n<table class=\"has-fixed-layout\">\n<colgroup><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><\/colgroup><tbody><tr><th colspan=\"1\" rowspan=\"1\"><p>\ud504\ub808\uc784 \uc720\ud615<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>\ud45c\uc2dc\ub41c \uae38\uc774<\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>\uc2e4\uc81c \uc774\ub354\ub137 \ud504\ub808\uc784<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>1518\ubc14\uc774\ud2b8<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>FCS \uc5c6\uc774 \ucea1\ucc98\ub41c \ud504\ub808\uc784<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>1514\ubc14\uc774\ud2b8<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\uc774 \ucc28\uc774\ub294 \ub300\ubd80\ubd84\uc758 \ud328\ud0b7 \ucea1\ucc98 \ud658\uacbd\uc5d0\uc11c \uc644\uc804\ud788 \uc815\uc0c1\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc77c\ubd80 \ud2b9\uc218 \ucea1\ucc98 \uc5b4\ub311\ud130 \ubc0f \ubaa8\ub2c8\ud130\ub9c1 \uc2dc\uc2a4\ud15c\uc740 FCS \ud544\ub4dc\ub97c \ubcf4\uc874\ud560 \uc218 \uc788\uc9c0\ub9cc, \uc77c\ubc18 \ub370\uc2a4\ud06c\ud1b1 NIC\ub294 \uae30\ubcf8\uc801\uc73c\ub85c Wireshark\uc5d0 \uc774\ub97c \ub178\ucd9c\ud558\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ub530\ub77c\uc11c CRC\/FCS \ubb38\uc81c\ub97c \uc9c4\ub2e8\ud560 \ub54c \uc5d4\uc9c0\ub2c8\uc5b4\ub294 \ub2e4\uc74c\uc744 \ub354 \uc911\uc810\uc801\uc73c\ub85c \ud65c\uc6a9\ud569\ub2c8\ub2e4:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>\uc2a4\uc704\uce58 \uc778\ud130\ud398\uc774\uc2a4 \uce74\uc6b4\ud130<\/p><\/li><li><p>NIC \ud1b5\uacc4<\/p><\/li><li><p>\uad11\ud559 \ubaa8\ub4c8 \uc9c4\ub2e8<\/p><\/li><li><p>DOM\/DDM \ubaa8\ub2c8\ud130\ub9c1<\/p><\/li><li><p>\ubb3c\ub9ac \uacc4\uce35 \ud14c\uc2a4\ud2b8<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\ub2e8\uc21c\ud55c \ud328\ud0b7 \ucea1\ucc98\ub9cc\uc73c\ub85c\ub294 \ubd80\uc871\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >\u2705 Is a Small Number of CRC\/FCS Errors Acceptable?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\uc6b4\uc601 \ub124\ud2b8\uc6cc\ud06c\uc5d0\uc11c, \uc2ec\uc9c0\uc5b4 \uc791\uace0 \ubc18\ubcf5\uc801\uc778 CRC\/FCS \uc624\ub958 \uc218\uc870\ucc28\ub3c4 \uc77c\ubc18\uc801\uc73c\ub85c \ubb34\uc5b8\uac00 \ubb38\uc81c\uac00 \uc788\uc74c\uc744 \ub098\ud0c0\ub0b4\ub294 \uc2e0\ud638\uc774\uba70, \ud2b9\ud788 \uace0\uc18d \ub9c1\ud06c\uc5d0\uc11c\ub294 \ub354\uc6b1 \uadf8\ub807\uc2b5\ub2c8\ub2e4. \ub124\ud2b8\uc6cc\ud06c \uc5d4\uc9c0\ub2c8\uc5b4\ub4e4 \uac04\uc758 Reddit \ud1a0\ub860\uc5d0\uc11c\ub294 \uc548\uc815\uc801\uc778 \ud658\uacbd\uc5d0\uc11c \u201c\ud5c8\uc6a9 \uac00\ub2a5\ud55c\u201d \uc624\ub958\uc728\uc774 \uc2e4\uc9c8\uc801\uc73c\ub85c 0\uc774\ub77c\uace0 \ubc18\ubcf5\uc801\uc73c\ub85c \uc5b8\uae09\ub429\ub2c8\ub2e4. \uc65c\ub0d0\ud558\uba74 \ub0ae\uc740 \uc624\ub958\uc728\uc870\ucc28\ub3c4 \uc7ac\uc804\uc1a1, \uc9c0\uc5f0, \uc560\ud50c\ub9ac\ucf00\uc774\uc158 \uc131\ub2a5 \uc800\ud558\ub97c \uc720\ubc1c\ud560 \uc218 \uc788\uae30 \ub54c\ubb38\uc785\ub2c8\ub2e4.<\/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\/0f53c3e969c04e8c9fa33cf0cb8b5fdc.jpg\" alt=\"Is a Small Number of CRC\/FCS Errors Acceptable?\" class=\"wp-image-7275\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/0f53c3e969c04e8c9fa33cf0cb8b5fdc.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/0f53c3e969c04e8c9fa33cf0cb8b5fdc-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/0f53c3e969c04e8c9fa33cf0cb8b5fdc-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/0f53c3e969c04e8c9fa33cf0cb8b5fdc-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/0f53c3e969c04e8c9fa33cf0cb8b5fdc-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\uc774\ub354\ub137\uc740 \uc190\uc0c1\ub41c \ud504\ub808\uc784\uc744 \uc790\ub3d9\uc73c\ub85c \ud3d0\uae30\ud558\ubbc0\ub85c, \ubc18\ubcf5\ub418\ub294 FCS \uc624\ub958\ub294 \ubb34\uc2dc\ud558\uae30\ubcf4\ub2e4 \ud56d\uc0c1 \uc870\uc0ac\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >\u20180\u2019\uc774 \ubaa9\ud45c\uc77c \ub54c<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\uc5d4\ud130\ud504\ub77c\uc774\uc988 \ub124\ud2b8\uc6cc\ud06c \ubc0f \ub370\uc774\ud130\uc13c\ud130\uc5d0\uc11c\ub294 \ub124\ud2b8\uc6cc\ud06c \uc5d4\uc9c0\ub2c8\uc5b4\uac00 \uc77c\ubc18\uc801\uc73c\ub85c \ub2e4\uc74c\uc744 \uae30\ub300\ud569\ub2c8\ub2e4:<\/p>\n\n\n\n<pre class=\"wp-block-code\">\n<code>CRC \uc624\ub958 = 0<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\ud2b9\ud788 \ub2e4\uc74c\uc5d0\uc11c:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>\ucf54\uc5b4 \uc2a4\uc704\uce58<\/p><\/li><li><p>\uc2a4\ud1a0\ub9ac\uc9c0 \ub124\ud2b8\uc6cc\ud06c<\/p><\/li><li><p>\uc2a4\ud30c\uc778-\ub9ac\ud504 \ud328\ube0c\ub9ad<\/p><\/li><li><p>AI \ud074\ub7ec\uc2a4\ud130 \uc778\ud130\ucee4\ub125\ud2b8<\/p><\/li><li><p>\uace0\uc8fc\ud30c \uac70\ub798 \ub124\ud2b8\uc6cc\ud06c<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\uc548\uc815\uc801\uc778 \uc774\ub354\ub137 \ub9c1\ud06c\ub294 \uc9c0\uc18d\uc801\uc778 \ud504\ub808\uc784 \uc190\uc0c1 \uc5c6\uc774 \uc791\ub3d9\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc77c\ubc18\uc801\uc778 \uc815\uc0c1 \uc778\ud130\ud398\uc774\uc2a4 \ub3d9\uc791:<\/p>\n\n\n\n<figure class=\"wp-block-table\">\n<table class=\"has-fixed-layout\">\n<colgroup><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><\/colgroup><tbody><tr><th colspan=\"1\" rowspan=\"1\"><p>\uc778\ud130\ud398\uc774\uc2a4 \uc0c1\ud0dc<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>CRC\/FCS \uc624\ub958<\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>\uc815\uc0c1\uc801\uc778 \uc548\uc815\uc801 \ub9c1\ud06c<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>0<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>\uac00\ub054 \ubc1c\uc0dd\ud558\ub294 \uc77c\uc2dc\uc801 \uc774\ubca4\ud2b8<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\ub9e4\uc6b0 \ub0ae\uc74c<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>\uc9c0\uc18d\uc801\uc73c\ub85c \uc99d\uac00\ud558\ub294 \uce74\uc6b4\ud130<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\ubb38\uc81c\uac00 \uc874\uc7ac\ud568<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\uce74\uc6b4\ud130\uac00 \uc2dc\uac04\uc774 \uc9c0\ub0a8\uc5d0 \ub530\ub77c \uacc4\uc18d \uc99d\uac00\ud55c\ub2e4\uba74, \ud574\ub2f9 \ubb38\uc81c\ub294 \uc77c\ubc18\uc801\uc73c\ub85c \uc815\uc0c1\uc73c\ub85c \uac04\uc8fc\ub418\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >\uac04\ud5d0\uc801 \uc624\ub958\uac00 \ubb38\uc81c\uac00 \ub418\ub294 \uacbd\uc6b0<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\uc77c\ubd80 \ud658\uacbd\uc5d0\uc11c\ub294 \ub2e4\uc74c \uc6d0\uc778\uc73c\ub85c \uc778\ud574 \uac00\ub054 CRC\/FCS \uae09\uc99d\uc774 \ubc1c\uc0dd\ud569\ub2c8\ub2e4:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>EMI \uac04\uc12d<\/p><\/li><li><p>\ub290\uc2a8\ud55c \ucee4\ub125\ud130<\/p><\/li><li><p>\ub178\ud6c4\ud654\ub41c \uad11\ud559 \uc7a5\uce58<\/p><\/li><li><p>\uc628\ub3c4 \ubcc0\ud654<\/p><\/li><li><p>\uc800\ud488\uc9c8 \ucf00\uc774\ube14<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\uc624\ub958\uc728\uc774 \ub0ae\uc544 \ubcf4\uc774\ub354\ub77c\ub3c4, \uac04\ud5d0\uc801 \uc190\uc0c1\uc740 \uc5ec\uc804\ud788 \ub2e4\uc74c\uc744 \uc601\ud5a5\uc744 \uc904 \uc218 \uc788\uc2b5\ub2c8\ub2e4:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>TCP \uc7ac\uc804\uc1a1<\/p><\/li><li><p>\uc2a4\ud1a0\ub9ac\uc9c0 \ud2b8\ub798\ud53d<\/p><\/li><li><p>\uc74c\uc131\/\uc601\uc0c1 \ud488\uc9c8<\/p><\/li><li><p>\ub370\uc774\ud130\ubca0\uc774\uc2a4 \ub3d9\uae30\ud654<\/p><\/li><li><p>\uc2e4\uc2dc\uac04 AI \uc6cc\ud06c\ub85c\ub4dc<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\uc608\uc2dc \ub3d9\uc791:<\/p>\n\n\n\n<pre class=\"wp-block-code\">\n<code>\ub0ae\uc740 BER<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\ub9ce\uc740 \uc2e4\uc81c \uc6b4\uc601 \ud658\uacbd\uc5d0\uc11c \uac04\ud5d0\uc801 \uc624\ub958\ub294 \ub2e4\uc74c \uc2dc\uae30\uc5d0 \ub354 \ub450\ub4dc\ub7ec\uc9c0\uac8c \ub098\ud0c0\ub0a9\ub2c8\ub2e4:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>\ucd5c\ub300 \ud2b8\ub798\ud53d \uae30\uac04<\/p><\/li><li><p>\uace0\uc628 \ud658\uacbd<\/p><\/li><li><p>\ub300\uc6a9\ub7c9 \ud30c\uc77c \uc804\uc1a1<\/p><\/li><li><p>\uae09\uaca9\ud55c \ub3d9\uc11c \ubc29\ud5a5 \ud2b8\ub798\ud53d<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\ub530\ub77c\uc11c \ubc18\ubcf5\ub418\ub294 CRC\/FCS \uc624\ub958\ub294 \uc885\uc885 \ub354 \ud070 \ub9c1\ud06c \uc7a5\uc560 \ubc1c\uc0dd \uc804\uc758 \ucd08\uae30 \uacbd\uace0 \uc2e0\ud638\ub85c \uac04\uc8fc\ub429\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >\uace0\uc18d \ub9c1\ud06c\uac00 \ub35c \uad00\ub300\ud55c \uc774\uc720<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\uc774\ub354\ub137 \uc18d\ub3c4\uac00 \uc99d\uac00\ud568\uc5d0 \ub530\ub77c \uc2e0\ud638 \ubb34\uacb0\uc131\uc774 \ud6e8\uc52c \ub354 \ubbfc\uac10\ud574\uc9d1\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ub2e4\uc74c\uacfc \uac19\uc740 \uace0\uc18d \ub9c1\ud06c\ub294:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>25G \uc774\ub354\ub137<\/p><\/li><li><p>100G \uc774\ub354\ub137<\/p><\/li><li><p>400G \uc774\ub354\ub137<\/p><\/li><li><p>800G \uc774\ub354\ub137<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\ub2e4\uc74c\uc744 \uc0ac\uc6a9\ud558\uc5ec \uc791\ub3d9\ud569\ub2c8\ub2e4:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>\ub192\uc740 \uc2e0\ud638 \uc804\uc1a1 \uc18d\ub3c4<\/p><\/li><li><p>\ub354 \uc5c4\uaca9\ud55c \ud0c0\uc774\ubc0d \uc5ec\uc720<\/p><\/li><li><p>\uc7a1\uc74c \ubc0f \uc9c0\ud130\uc5d0 \ub300\ud55c \ubbfc\uac10\ub3c4 \uc99d\uac00<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\uc77c\ubc18\uc801\uc778 \ucd94\uc138:<\/p>\n\n\n\n<figure class=\"wp-block-table\">\n<table class=\"has-fixed-layout\">\n<colgroup><col style=\"width: 282px;\"\/><col style=\"min-width: 25px;\"\/><\/colgroup><tbody><tr><th colspan=\"1\" rowspan=\"1\" colwidth=\"282\"><p>\uc774\ub354\ub137 \uc18d\ub3c4<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>\uc624\ub958 \ubbfc\uac10\ub3c4<\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"282\"><p>1G<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\ub0ae\uc74c<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"282\"><p>10G<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\uc911\uac04 \uc218\uc900<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"282\"><p>25G<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\ub192\uc74c<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"282\"><p>100G<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\ub9e4\uc6b0 \ub192\uc74c<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\" colwidth=\"282\"><p>400G+<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>\uadf9\ub3c4\ub85c \ubbfc\uac10\ud568<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\uc774 \ub54c\ubb38\uc5d0 1G \ub9c1\ud06c\uc5d0\ub294 \uc601\ud5a5\uc744 \uc8fc\uc9c0 \uc54a\uc744 \uc218 \uc788\ub294 \ubb38\uc81c\ub77c\ub3c4 \ud604\ub300 \uace0\uc18d \uc774\ub354\ub137 \uc778\ud504\ub77c\uc5d0\uc11c\ub294 \uc27d\uac8c CRC\/FCS \uc624\ub958\ub97c \uc720\ubc1c\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc77c\ubc18\uc801\uc778 \uace0\uc18d \ub9c1\ud06c \uc624\ub958 \uc6d0\uc778\uc740 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>\uc624\uc5fc\ub41c MPO \ucee4\ub125\ud130<\/p><\/li><li><p>\ud55c\uacc4 \uc218\uc900\uc758 <a target=\"_self\" href=\"https:\/\/www.l-p.com\/products\/488423.htm\">QSFP28 \uad11\ud559 \uc7a5\uce58<\/a><\/p><\/li><li><p>\uc800\ud488\uc9c8 DAC \ucf00\uc774\ube14<\/p><\/li><li><p>PCB \uc2e0\ud638 \ubb34\uacb0\uc131 \ubb38\uc81c<\/p><\/li><li><p>\uc5f4 \ubd88\uc548\uc815\uc131<\/p><\/li><li><p>\uad11 \ucd9c\ub825 \ubd88\uade0\ud615<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\ud604\ub300 \ub370\uc774\ud130\uc13c\ud130\uc5d0\uc11c\ub294 \uace0\uc18d \ud3ec\ud2b8\uc5d0\uc11c \ubc18\ubcf5\uc801\uc73c\ub85c \ubc1c\uc0dd\ud558\ub294 CRC\/FCS \uc624\ub958\uac00 \uc77c\ubc18\uc801\uc73c\ub85c \ub9c1\ud06c \ud488\uc9c8 \uc800\ud558\ub97c \ub098\ud0c0\ub0b4\ub294 \uc9c0\ud45c\ub85c \uac04\uc8fc\ub418\uba70 \uc989\uac01\uc801\uc778 \uc870\uc0ac\uac00 \ud544\uc694\ud569\ub2c8\ub2e4.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >\u2705 \uacb0\ub860: FCS \uc624\ub958\uac00 \ub124\ud2b8\uc6cc\ud06c \uc2e0\ub8b0\uc131\uc5d0 \uc758\ubbf8\ud558\ub294 \ubc14<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\ud504\ub808\uc784 \uac80\uc0ac \uc2dc\ud000\uc2a4(FCS)\ub294 \uc774\ub354\ub137 \ub124\ud2b8\uc6cc\ud0b9\uc5d0\uc11c \uac00\uc7a5 \uc911\uc694\ud55c \ubb34\uacb0\uc131 \uac80\uc0ac \uba54\ucee4\ub2c8\uc998 \uc911 \ud558\ub098\uc785\ub2c8\ub2e4. \uacc4\uce35 2\uc5d0\uc11c CRC-32 \uac80\uc99d\uc744 \uc0ac\uc6a9\ud568\uc73c\ub85c\uc368 \uc774\ub354\ub137 \uc7a5\uce58\ub294 \uc798\ubabb\ub41c \ub370\uc774\ud130\uac00 \uc0c1\uc704 \uacc4\uce35 \uc560\ud50c\ub9ac\ucf00\uc774\uc158 \ub610\ub294 \uc11c\ube44\uc2a4\uc5d0 \ub3c4\ub2ec\ud558\uae30 \uc804\uc5d0 \uc190\uc0c1\ub41c \ud504\ub808\uc784\uc744 \uc2e0\uc18d\ud558\uac8c \uac10\uc9c0\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. FCS \uac80\uc99d\uc774 \uc2e4\ud328\ud560 \uacbd\uc6b0, \ubb38\uc81c\ub294 \uc77c\ubc18\uc801\uc73c\ub85c TCP\ub098 \uc560\ud50c\ub9ac\ucf00\uc774\uc158 \uacc4\uce35 \ud504\ub85c\ud1a0\ucf5c\ubcf4\ub2e4\ub294 \ubb3c\ub9ac\uc801 \uc804\uc1a1 \uacbd\ub85c\uc640 \uad00\ub828\uc774 \uc788\uc2b5\ub2c8\ub2e4.<\/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\/1fe7cb7bfbf243bab5a0e65faafcf36e.jpg\" alt=\"What FCS Errors Mean for Network Reliability\" class=\"wp-image-7276\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/1fe7cb7bfbf243bab5a0e65faafcf36e.jpg 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/1fe7cb7bfbf243bab5a0e65faafcf36e-300x169.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/1fe7cb7bfbf243bab5a0e65faafcf36e-1024x576.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/1fe7cb7bfbf243bab5a0e65faafcf36e-768x432.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/1fe7cb7bfbf243bab5a0e65faafcf36e-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\uc2e4\uc81c \uae30\uc5c5 \ubc0f \ub370\uc774\ud130 \uc13c\ud130 \ud658\uacbd\uc5d0\uc11c\ub294 \ubc18\ubcf5\uc801\uc73c\ub85c \ubc1c\uc0dd\ud558\ub294 CRC\/FCS \uc624\ub958\ub97c \uacb0\ucf54 \ubb34\uc2dc\ud574\uc11c\ub294 \uc548 \ub429\ub2c8\ub2e4. \uc791\ub354\ub77c\ub3c4 \uc9c0\uc18d\uc801\uc73c\ub85c \uc99d\uac00\ud558\ub294 \uc624\ub958 \uc218\uc870\ucc28 \uc190\uc0c1\ub41c \uc774\ub354\ub137 \ucf00\uc774\ube14, \uc624\uc5fc\ub41c \uad11\uc12c\uc720 \ucee4\ub125\ud130, \ubd88\uc548\uc815\ud55c \uc2e0\ud638 \ubb34\uacb0\uc131, \uace0\uc7a5\ub09c NIC(\ub124\ud2b8\uc6cc\ud06c \uc778\ud130\ud398\uc774\uc2a4 \uce74\ub4dc), \ub610\ub294 \uacb0\ud568 \uc788\ub294 SFP, SFP+, QSFP, QSFP28 \uad11\ud559 \ubaa8\ub4c8\uacfc \uac19\uc740 \ub354 \uc2ec\uac01\ud55c \ubb38\uc81c\ub97c \ub098\ud0c0\ub0bc \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc774\ub354\ub137 \ub124\ud2b8\uc6cc\ud06c\uac00 100G, 400G \ubc0f AI \uae30\ubc18 \uace0\uc131\ub2a5 \uc778\ud504\ub77c\ub85c \uacc4\uc18d \uc9c4\ud654\ud568\uc5d0 \ub530\ub77c \ub0ae\uc740 \ube44\ud2b8 \uc624\ub958\uc728(BER) \uc720\uc9c0 \ubc0f \uc548\uc815\uc801\uc778 \uad11 \uc804\uc1a1 \ud655\ubcf4\ub294 \uc810\uc810 \ub354 \uc911\uc694\ud574\uc9c0\uace0 \uc788\uc2b5\ub2c8\ub2e4. \ud604\ub300\uc758 \uace0\uc18d \ub9c1\ud06c\ub294 \ub9e4\uc6b0 \uc81c\ud55c\ub41c \uc2e0\ud638 \uc5ec\uc720 \ub9c8\uc9c4\uc73c\ub85c \uc791\ub3d9\ud558\ubbc0\ub85c, \ubb3c\ub9ac \uacc4\uce35\uc758 \uc0ac\uc18c\ud55c \uacb0\ud568\uc774\ub77c\ub3c4 \ud328\ud0b7 \uc190\uc2e4, \uc7ac\uc804\uc1a1, \uc9c0\uc5f0 \uc99d\uac00, \uc560\ud50c\ub9ac\ucf00\uc774\uc158 \ubd88\uc548\uc815 \ub4f1\uc73c\ub85c \ube60\ub974\uac8c \uc774\uc5b4\uc9c8 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uac00\uc7a5 \uc2e4\uc6a9\uc801\uc778 \ud575\uc2ec \uc694\uc9c0\ub294 \uac04\ub2e8\ud569\ub2c8\ub2e4:<\/p>\n\n\n\n<pre class=\"wp-block-code\">\n<code>\ubc18\ubcf5\ub418\ub294 CRC\/FCS \uc624\ub958\ub294 \uac70\uc758 \ud56d\uc0c1 \ubb3c\ub9ac\uc801 \ub9c1\ud06c\uc5d0 \ub300\ud55c \uc870\uc0ac\uac00 \ud544\uc694\ud568\uc744 \uc758\ubbf8\ud569\ub2c8\ub2e4.<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\ub300\ubd80\ubd84\uc758 \uacbd\uc6b0, \uac00\uc7a5 \ube60\ub978 \ubb38\uc81c \ud574\uacb0 \uc808\ucc28\ub294 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4:<\/p>\n\n\n\n<ol class=\"wp-block-list\" >\n<li><p>\uc778\ud130\ud398\uc774\uc2a4 \uce74\uc6b4\ud130 \ud655\uc778<\/p><\/li><li><p>\ucf00\uc774\ube14 \ub610\ub294 \uad11\uc12c\uc720 \uc810\ud504 \uc120 \uad50\uccb4<\/p><\/li><li><p>\ucee4\ub125\ud130 \uccad\uc18c \ubc0f \uc810\uac80<\/p><\/li><li><p>\uad50\uccb4 <a target=\"_self\" href=\"https:\/\/www.l-p.com\/store-25432-optics-transceivers-sfp-modules.htm\">\uad11 \ud2b8\ub79c\uc2a4\uc2dc\ubc84<\/a><\/p><\/li><li><p>DOM\/DDM \uc9c4\ub2e8 \uc815\ubcf4 \uac80\ud1a0<\/p><\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">\ub124\ud2b8\uc6cc\ud06c \uc5d4\uc9c0\ub2c8\uc5b4, \ub370\uc774\ud130 \uc13c\ud130 \uc6b4\uc601\uc790 \ubc0f IT \uad00\ub9ac\uc790\uc5d0\uac8c FCS \uce74\uc6b4\ud130\ub294 \uc774\ub354\ub137 \ub9c1\ud06c \uac74\uac15 \uc0c1\ud0dc\ub97c \ud30c\uc545\ud560 \uc218 \uc788\ub294 \uac00\uc7a5 \ucd08\uae30\uc774\uc790 \uac00\uc7a5 \uc720\uc6a9\ud55c \uc9c0\ud45c \uc911 \ud558\ub098\uc785\ub2c8\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >\ucd94\ucc9c \uc790\ub8cc<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><a target=\"_self\" href=\"https:\/\/www.l-p.com\/\">LINK-PP \uacf5\uc2dd \uc2a4\ud1a0\uc5b4<\/a> SFP \ubaa8\ub4c8<\/p><\/li><li><p><a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/ko\/knowledge-center\/how-to-test-sfp-compatibility\/\">\uad11 \ud2b8\ub79c\uc2a4\uc2dc\ubc84 \ud638\ud658\uc131 \uac00\uc774\ub4dc<\/a><\/p><\/li><li><p>\uad11\uc12c\uc720 \uccad\uc18c \ubc0f \uc810\uac80 \ucd5c\uc120\uc758 \ubc29\ubc95<\/p><\/li><li><p>\uc774\ub354\ub137 CRC\/FCS \ubb38\uc81c \ud574\uacb0 \uccb4\ud06c\ub9ac\uc2a4\ud2b8<\/p><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" >\uc800\uc790 \uc18c\uac1c<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\uc774\ub354\ub137 \ubb38\uc81c \ud574\uacb0, \uad11 \ud2b8\ub79c\uc2a4\uc2dc\ubc84 \ud638\ud658\uc131, \uad11\uc12c\uc720 \ub124\ud2b8\uc6cc\ud0b9 \ubd84\uc57c\uc5d0\uc11c \uc2e4\ubb34 \uacbd\ud5d8\uc744 \uac16\ucd98 \ub124\ud2b8\uc6cc\ud06c \uc778\ud504\ub77c \ucf58\ud150\uce20 \uc804\ubb38\uac00\uac00 \uc791\uc131\ud588\uc2b5\ub2c8\ub2e4.<\/p>","protected":false},"excerpt":{"rendered":"<p>\ud504\ub808\uc784 \uccb4\ud06c \uc2dc\ud000\uc2a4(FCS)\uc758 \uc758\ubbf8, CRC-32\uac00 \uc190\uc0c1\ub41c \uc774\ub354\ub137 \ud504\ub808\uc784\uc744 \uc5b4\ub5bb\uac8c \uac10\uc9c0\ud558\ub294\uc9c0, \uadf8\ub9ac\uace0 FCS \uc624\ub958\uac00 \uc77c\ubc18\uc801\uc73c\ub85c \ucf00\uc774\ube14 \uacb0\ud568, \uad11\uc12c\uc720 \ubb38\uc81c \ub610\ub294 \uad11 \ud2b8\ub79c\uc2a4\uc2dc\ubc84 \ubb38\uc81c\uc640 \uc5f0\uad00\ub418\ub294 \uc774\uc720\ub97c \uc54c\uc544\ubcf4\uc138\uc694.<\/p>","protected":false},"author":1,"featured_media":7277,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[27],"tags":[26],"class_list":["post-7278","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-glossary","tag-optics-transceivers"],"blocksy_meta":[],"acf":[],"_links":{"self":[{"href":"https:\/\/resourceslp.szlogic.cn\/ko\/wp-json\/wp\/v2\/posts\/7278","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/resourceslp.szlogic.cn\/ko\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/resourceslp.szlogic.cn\/ko\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/ko\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/ko\/wp-json\/wp\/v2\/comments?post=7278"}],"version-history":[{"count":6,"href":"https:\/\/resourceslp.szlogic.cn\/ko\/wp-json\/wp\/v2\/posts\/7278\/revisions"}],"predecessor-version":[{"id":10688,"href":"https:\/\/resourceslp.szlogic.cn\/ko\/wp-json\/wp\/v2\/posts\/7278\/revisions\/10688"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/ko\/wp-json\/wp\/v2\/media\/7277"}],"wp:attachment":[{"href":"https:\/\/resourceslp.szlogic.cn\/ko\/wp-json\/wp\/v2\/media?parent=7278"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/ko\/wp-json\/wp\/v2\/categories?post=7278"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/ko\/wp-json\/wp\/v2\/tags?post=7278"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}