{"id":1579,"date":"2026-08-23T00:09:33","date_gmt":"2026-08-22T17:09:33","guid":{"rendered":"https:\/\/yourapx.com\/?p=1579"},"modified":"2026-08-23T00:09:33","modified_gmt":"2026-08-22T17:09:33","slug":"sua-switch-cisco-catalyst-c9300-24t-a-loi-nguon-loi-khoi-dong-va-mat-cong","status":"publish","type":"post","link":"https:\/\/yourapx.com\/?p=1579","title":{"rendered":"S\u1eeda switch Cisco Catalyst C9300-24T-A l\u1ed7i ngu\u1ed3n, l\u1ed7i kh\u1edfi \u0111\u1ed9ng v\u00e0 m\u1ea5t c\u1ed5ng"},"content":{"rendered":"<h2>1. Gi\u1edbi thi\u1ec7u Cisco Catalyst C9300-24T-A<\/h2>\n<p><strong>Cisco Catalyst C9300-24T-A<\/strong> l\u00e0 switch access doanh nghi\u1ec7p thu\u1ed9c d\u00f2ng Catalyst 9300, c\u00f3 24 c\u1ed5ng \u0111\u1ed3ng 10\/100\/1000 Mbps, uplink module v\u00e0 gi\u1ea5y ph\u00e9p Network Advantage. Thi\u1ebft b\u1ecb th\u01b0\u1eddng n\u1eb1m \u1edf l\u1edbp access ho\u1eb7c distribution n\u00ean l\u1ed7i ph\u1ea7n c\u1ee9ng c\u00f3 th\u1ec3 l\u00e0m gi\u00e1n \u0111o\u1ea1n m\u1ed9t v\u00f9ng m\u1ea1ng l\u1edbn.<\/p>\n<p>Model 24T l\u00e0 phi\u00ean b\u1ea3n truy\u1ec1n d\u1eef li\u1ec7u, <strong>kh\u00f4ng ph\u1ea3i b\u1ea3n PoE<\/strong>. C\u1ea7n ph\u00e2n bi\u1ec7t \u0111\u00fang v\u1edbi C9300-24P ho\u1eb7c C9300-24U \u0111\u1ec3 tr\u00e1nh \u0111\u00e1nh gi\u00e1 sai m\u1ea1ch ngu\u1ed3n v\u00e0 ch\u1ee9c n\u0103ng c\u1ed5ng.<\/p>\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/yourapx.com\/wp-content\/uploads\/2026\/08\/c9300-24t-mainboard.jpg\" alt=\"Mainboard switch Cisco Catalyst C9300-24T-A\" loading=\"lazy\"><figcaption>C\u1ea5u tr\u00fac mainboard th\u1ef1c t\u1ebf c\u1ee7a Cisco Catalyst C9300-24T-A t\u1ea1i trung t\u00e2m k\u1ef9 thu\u1eadt APX.<\/figcaption><\/figure>\n<h2>2. Nh\u1eefng l\u1ed7i th\u01b0\u1eddng g\u1eb7p<\/h2>\n<ul>\n<li>Kh\u00f4ng l\u00ean ngu\u1ed3n ho\u1eb7c ngu\u1ed3n v\u00e0o nh\u01b0ng thi\u1ebft b\u1ecb kh\u00f4ng kh\u1edfi \u0111\u1ed9ng.<\/li>\n<li>D\u1eebng trong giai \u0111o\u1ea1n boot, kh\u1edfi \u0111\u1ed9ng l\u1ea1i li\u00ean t\u1ee5c ho\u1eb7c kh\u00f4ng v\u00e0o \u0111\u01b0\u1ee3c IOS XE.<\/li>\n<li>M\u1ea5t m\u1ed9t c\u1ee5m c\u1ed5ng Ethernet, c\u1ed5ng ch\u1eadp ch\u1eddn ho\u1eb7c kh\u00f4ng nh\u1eadn link.<\/li>\n<li>Kh\u00f4ng nh\u1eadn uplink module, stack ho\u1eb7c xu\u1ea5t hi\u1ec7n c\u1ea3nh b\u00e1o ph\u1ea7n c\u1ee9ng.<\/li>\n<li>Qu\u1ea1t ch\u1ea1y t\u1ed1c \u0111\u1ed9 cao, b\u00e1o nhi\u1ec7t \u0111\u1ed9 ho\u1eb7c ngu\u1ed3n b\u1ea5t th\u01b0\u1eddng.<\/li>\n<\/ul>\n<h2>3. Ki\u1ec3m tra l\u1ed7i ngu\u1ed3n v\u00e0 l\u1ed7i kh\u1edfi \u0111\u1ed9ng<\/h2>\n<p>V\u1edbi thi\u1ebft b\u1ecb kh\u00f4ng l\u00ean, APX ki\u1ec3m tra tu\u1ea7n t\u1ef1 ngu\u1ed3n AC, module ngu\u1ed3n, c\u00e1c \u0111\u01b0\u1eddng ngu\u1ed3n ch\u1edd v\u00e0 ngu\u1ed3n c\u1ee5c b\u1ed9 tr\u00ean mainboard. Kh\u00f4ng thay linh ki\u1ec7n theo ph\u1ecfng \u0111o\u00e1n v\u00ec m\u1ed9t \u0111\u01b0\u1eddng ngu\u1ed3n b\u1ecb k\u00e9o th\u1ea5p c\u00f3 th\u1ec3 \u0111\u1ebfn t\u1eeb t\u1ea7ng chuy\u1ec3n \u0111\u1ed5i, t\u1ea3i ph\u00eda sau ho\u1eb7c linh ki\u1ec7n b\u1ea3o v\u1ec7.<\/p>\n<p>V\u1edbi l\u1ed7i boot, c\u1ea7n ghi l\u1ea1i log console v\u00e0 tr\u1ea1ng th\u00e1i LED tr\u01b0\u1edbc khi can thi\u1ec7p \u0111\u1ec3 ph\u00e2n bi\u1ec7t l\u1ed7i ph\u1ea7n m\u1ec1m, b\u1ed9 nh\u1edb l\u01b0u tr\u1eef, ngu\u1ed3n kh\u00f4ng \u1ed5n \u0111\u1ecbnh v\u00e0 l\u1ed7i \u1edf kh\u1ed1i x\u1eed l\u00fd.<\/p>\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/yourapx.com\/wp-content\/uploads\/2026\/08\/c9300-24t-board-detail.jpg\" alt=\"Khu v\u1ef1c x\u1eed l\u00fd v\u00e0 ngu\u1ed3n tr\u00ean bo m\u1ea1ch Cisco C9300-24T-A\" loading=\"lazy\"><figcaption>Chi ti\u1ebft c\u00e1c kh\u1ed1i x\u1eed l\u00fd, ngu\u1ed3n c\u1ee5c b\u1ed9 v\u00e0 giao ti\u1ebfp c\u1ed5ng tr\u00ean bo m\u1ea1ch.<\/figcaption><\/figure>\n<h2>4. L\u1ed7i m\u1ea5t c\u1ed5ng v\u00e0 uplink<\/h2>\n<p>M\u1ea5t link c\u00f3 th\u1ec3 xu\u1ea5t ph\u00e1t t\u1eeb c\u00e1p, module quang, c\u1ea5u h\u00ecnh, PHY ho\u1eb7c m\u1ea1ch b\u1ea3o v\u1ec7 g\u1ea7n c\u1ee5m c\u1ed5ng. K\u1ef9 thu\u1eadt vi\u00ean c\u1ea7n th\u1eed ch\u00e9o c\u00e1p\/module, ki\u1ec3m tra log v\u00e0 \u0111o \u0111\u1ed1i chi\u1ebfu gi\u1eefa c\u00e1c c\u1ed5ng c\u00f9ng nh\u00f3m tr\u01b0\u1edbc khi k\u1ebft lu\u1eadn h\u1ecfng mainboard.<\/p>\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/yourapx.com\/wp-content\/uploads\/2026\/08\/c9300-24t-rear.jpg\" alt=\"C\u1ea5u tr\u00fac b\u00ean trong switch Cisco C9300-24T-A\" loading=\"lazy\"><figcaption>Thi\u1ebft b\u1ecb \u0111\u01b0\u1ee3c m\u1edf \u0111\u1ec3 ki\u1ec3m tra ngu\u1ed3n, t\u1ea3n nhi\u1ec7t v\u00e0 k\u1ebft n\u1ed1i n\u1ed9i b\u1ed9.<\/figcaption><\/figure>\n<h2>5. Quy tr\u00ecnh s\u1eeda ch\u1eefa t\u1ea1i APX<\/h2>\n<ol>\n<li>Ti\u1ebfp nh\u1eadn model, serial, c\u1ea5u h\u00ecnh hi\u1ec7n t\u1ea1i v\u00e0 m\u00f4 t\u1ea3 l\u1ed7i.<\/li>\n<li>Ghi log console, ki\u1ec3m tra ngu\u1ed3n, qu\u1ea1t, nhi\u1ec7t \u0111\u1ed9 v\u00e0 tr\u1ea1ng th\u00e1i c\u1ed5ng.<\/li>\n<li>Khoanh v\u00f9ng theo t\u1eebng kh\u1ed1i, \u0111o \u0111\u1ed1i chi\u1ebfu v\u00e0 x\u00e1c nh\u1eadn nguy\u00ean nh\u00e2n.<\/li>\n<li>S\u1eeda ch\u1eefa, ch\u1ea1y t\u1ea3i, ki\u1ec3m tra c\u1ed5ng\/uplink v\u00e0 theo d\u00f5i kh\u1edfi \u0111\u1ed9ng l\u1eb7p l\u1ea1i.<\/li>\n<li>B\u00e0n giao k\u00e8m k\u1ebft qu\u1ea3 ki\u1ec3m th\u1eed v\u00e0 khuy\u1ebfn ngh\u1ecb v\u1eadn h\u00e0nh.<\/li>\n<\/ol>\n<p><strong>L\u01b0u \u00fd:<\/strong> N\u1ed9i dung l\u00e0 \u0111\u1ecbnh h\u01b0\u1edbng ch\u1ea9n \u0111o\u00e1n t\u1eeb h\u00ecnh \u1ea3nh thi\u1ebft b\u1ecb th\u1ef1c t\u1ebf, kh\u00f4ng thay th\u1ebf quy tr\u00ecnh \u0111o ki\u1ec3m tr\u1ef1c ti\u1ebfp tr\u00ean t\u1eebng mainboard.<\/p>\n<p>Li\u00ean h\u1ec7 APX qua <strong>Hotline 0367 247 577<\/strong> ho\u1eb7c <strong>Zalo 0978 626 298<\/strong>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>1. Gi\u1edbi thi\u1ec7u Cisco Catalyst C9300-24T-A Cisco Catalyst C9300-24T-A l\u00e0 switch access doanh nghi\u1ec7p thu\u1ed9c d\u00f2ng Catalyst 9300, c\u00f3 24 c\u1ed5ng \u0111\u1ed3ng 10\/100\/1000 Mbps, uplink module v\u00e0 gi\u1ea5y ph\u00e9p Network Advantage. Thi\u1ebft b\u1ecb th\u01b0\u1eddng n\u1eb1m \u1edf l\u1edbp access ho\u1eb7c distribution n\u00ean l\u1ed7i ph\u1ea7n c\u1ee9ng c\u00f3 th\u1ec3 l\u00e0m gi\u00e1n \u0111o\u1ea1n m\u1ed9t v\u00f9ng m\u1ea1ng l\u1edbn. Model 24T [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":1566,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[44,42,43],"class_list":["post-1579","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-bai-viet-moi","tag-c9300-24t-a","tag-cisco-catalyst-9300","tag-sua-switch-cisco"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>S\u1eeda switch Cisco Catalyst C9300-24T-A l\u1ed7i ngu\u1ed3n, l\u1ed7i kh\u1edfi \u0111\u1ed9ng v\u00e0 m\u1ea5t c\u1ed5ng - APX-CHUY\u00caN S\u1eecA THI\u1ebeT B\u1eca M\u1ea0NG<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/yourapx.com\/?p=1579\" \/>\n<meta property=\"og:locale\" content=\"vi_VN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"S\u1eeda switch Cisco Catalyst C9300-24T-A l\u1ed7i ngu\u1ed3n, l\u1ed7i kh\u1edfi \u0111\u1ed9ng v\u00e0 m\u1ea5t c\u1ed5ng - APX-CHUY\u00caN S\u1eecA THI\u1ebeT B\u1eca M\u1ea0NG\" \/>\n<meta property=\"og:description\" content=\"1. 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Gi\u1edbi thi\u1ec7u Cisco Catalyst C9300-24T-A Cisco Catalyst C9300-24T-A l\u00e0 switch access doanh nghi\u1ec7p thu\u1ed9c d\u00f2ng Catalyst 9300, c\u00f3 24 c\u1ed5ng \u0111\u1ed3ng 10\/100\/1000 Mbps, uplink module v\u00e0 gi\u1ea5y ph\u00e9p Network Advantage. Thi\u1ebft b\u1ecb th\u01b0\u1eddng n\u1eb1m \u1edf l\u1edbp access ho\u1eb7c distribution n\u00ean l\u1ed7i ph\u1ea7n c\u1ee9ng c\u00f3 th\u1ec3 l\u00e0m gi\u00e1n \u0111o\u1ea1n m\u1ed9t v\u00f9ng m\u1ea1ng l\u1edbn. 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