{"id":31873,"date":"2025-09-03T16:31:00","date_gmt":"2025-09-03T09:31:00","guid":{"rendered":"https:\/\/interdata.vn\/blog\/?p=31873"},"modified":"2025-10-06T13:37:20","modified_gmt":"2025-10-06T06:37:20","slug":"so-sanh-hub-va-switch","status":"publish","type":"post","link":"https:\/\/interdata.vn\/blog\/so-sanh-hub-va-switch\/","title":{"rendered":"So s\u00e1nh Hub v\u00e0 Switch: Vai tr\u00f2, S\u1ef1 kh\u00e1c bi\u1ec7t &#038; Tr\u01b0\u1eddng h\u1ee3p d\u00f9ng"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_85 counter-hierarchy ez-toc-counter ez-toc-white ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">N\u1ed8I DUNG<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 eztoc-toggle-hide-by-default' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/interdata.vn\/blog\/so-sanh-hub-va-switch\/#So-luoc-ve-Hub-va-Switch\" >S\u01a1 l\u01b0\u1ee3c v\u1ec1 Hub v\u00e0 Switch<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/interdata.vn\/blog\/so-sanh-hub-va-switch\/#Hub-la-gi\" >Hub l\u00e0 g\u00ec?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/interdata.vn\/blog\/so-sanh-hub-va-switch\/#Switch-la-gi\" >Switch l\u00e0 g\u00ec?<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/interdata.vn\/blog\/so-sanh-hub-va-switch\/#So-sanh-diem-giong-nhau-giua-Hub-va-Switch\" >So s\u00e1nh \u0111i\u1ec3m gi\u1ed1ng nhau gi\u1eefa Hub v\u00e0 Switch<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/interdata.vn\/blog\/so-sanh-hub-va-switch\/#So-sanh-diem-khac-nhau-giua-Hub-va-Switch\" >So s\u00e1nh \u0111i\u1ec3m kh\u00e1c nhau gi\u1eefa Hub v\u00e0 Switch<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/interdata.vn\/blog\/so-sanh-hub-va-switch\/#Nguyen-ly-hoat-dong\" >Nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/interdata.vn\/blog\/so-sanh-hub-va-switch\/#Hieu-suat-mang\" >Hi\u1ec7u su\u1ea5t m\u1ea1ng<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/interdata.vn\/blog\/so-sanh-hub-va-switch\/#Kha-nang-bao-mat\" >Kh\u1ea3 n\u0103ng b\u1ea3o m\u1eadt<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/interdata.vn\/blog\/so-sanh-hub-va-switch\/#Tinh-nang-va-do-phuc-tap\" >T\u00ednh n\u0103ng v\u00e0 \u0111\u1ed9 ph\u1ee9c t\u1ea1p<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/interdata.vn\/blog\/so-sanh-hub-va-switch\/#Chi-phi\" >Chi ph\u00ed<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/interdata.vn\/blog\/so-sanh-hub-va-switch\/#Nen-dung-Hub-va-Switch-trong-truong-hop-nao\" >N\u00ean d\u00f9ng Hub v\u00e0 Switch trong tr\u01b0\u1eddng h\u1ee3p n\u00e0o?<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/interdata.vn\/blog\/so-sanh-hub-va-switch\/#Khi-nao-nen-chon-thiet-bi-Hub\" >Khi n\u00e0o n\u00ean ch\u1ecdn thi\u1ebft b\u1ecb Hub?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/interdata.vn\/blog\/so-sanh-hub-va-switch\/#Khi-nao-nen-chon-thiet-bi-Switch\" >Khi n\u00e0o n\u00ean ch\u1ecdn thi\u1ebft b\u1ecb Switch?<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/interdata.vn\/blog\/so-sanh-hub-va-switch\/#Cau-hoi-thuong-gap-ve-Switch-va-Hub-FAQ\" >C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p v\u1ec1 Switch v\u00e0 Hub (FAQ)<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/interdata.vn\/blog\/so-sanh-hub-va-switch\/#Switch-va-Hub-cai-nao-tot-hon\" >Switch v\u00e0 Hub c\u00e1i n\u00e0o t\u1ed1t h\u01a1n?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/interdata.vn\/blog\/so-sanh-hub-va-switch\/#Switch-co-thay-the-hoan-toan-duoc-Hub-khong\" >Switch c\u00f3 thay th\u1ebf ho\u00e0n to\u00e0n \u0111\u01b0\u1ee3c Hub kh\u00f4ng?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/interdata.vn\/blog\/so-sanh-hub-va-switch\/#Tai-sao-Hub-lai-bi-loai-bo-dan\" >T\u1ea1i sao Hub l\u1ea1i b\u1ecb lo\u1ea1i b\u1ecf d\u1ea7n?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/interdata.vn\/blog\/so-sanh-hub-va-switch\/#Switch-co-can-cau-hinh-khong\" >Switch c\u00f3 c\u1ea7n c\u1ea5u h\u00ecnh kh\u00f4ng?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/interdata.vn\/blog\/so-sanh-hub-va-switch\/#Co-the-ket-noi-Switch-voi-Hub-khong\" >C\u00f3 th\u1ec3 k\u1ebft n\u1ed1i Switch v\u1edbi Hub kh\u00f4ng?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-20\" href=\"https:\/\/interdata.vn\/blog\/so-sanh-hub-va-switch\/#Switch-co-the-dung-trong-mang-gia-dinh-khong\" >Switch c\u00f3 th\u1ec3 d\u00f9ng trong m\u1ea1ng gia \u0111\u00ecnh kh\u00f4ng?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-21\" href=\"https:\/\/interdata.vn\/blog\/so-sanh-hub-va-switch\/#Switch-Layer-2-va-Layer-3-khac-nhau-nhu-the-nao\" >Switch Layer 2 v\u00e0 Layer 3 kh\u00e1c nhau nh\u01b0 th\u1ebf n\u00e0o?<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<p>Khi x\u00e2y d\u1ef1ng ho\u1eb7c n\u00e2ng c\u1ea5p h\u1ec7 th\u1ed1ng m\u1ea1ng, nhi\u1ec1u ng\u01b0\u1eddi \u0111\u1ec1u g\u1eb7p chung m\u1ed9t c\u00e2u h\u1ecfi: \u201cHub v\u00e0 Switch kh\u00e1c nhau th\u1ebf n\u00e0o? N\u00ean ch\u1ecdn thi\u1ebft b\u1ecb n\u00e0o? B\u00e0i vi\u1ebft n\u00e0y c\u1ee7a InterData s\u1ebd gi\u00fap b\u1ea1n n\u1eafm r\u00f5 so s\u00e1nh gi\u1eefa hub v\u00e0 switch kh\u00e1c g\u00ec nhau v\u00e0 c\u00e1ch \u0111\u1ec3 l\u1ef1a ch\u1ecdn gi\u1eefa 2 thi\u1ebft b\u1ecb m\u1ea1ng t\u1eeb \u0111\u00f3 \u0111\u01b0a ra quy\u1ebft \u0111\u1ecbnh t\u1ed1i \u01b0u cho h\u1ec7 th\u1ed1ng m\u1ea1ng c\u1ee7a b\u1ea1n.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"So-luoc-ve-Hub-va-Switch\"><\/span>S\u01a1 l\u01b0\u1ee3c v\u1ec1 Hub v\u00e0 Switch<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"Hub-la-gi\"><\/span>Hub l\u00e0 g\u00ec?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><strong>Hub<\/strong> l\u00e0 m\u1ed9t thi\u1ebft b\u1ecb m\u1ea1ng \u0111\u01a1n gi\u1ea3n, ho\u1ea1t \u0111\u1ed9ng \u1edf <strong>t\u1ea7ng v\u1eadt l\u00fd (Physical Layer)<\/strong> trong m\u00f4 h\u00ecnh OSI, b\u1ea1n c\u00f3 th\u1ec3 h\u00ecnh dung Hub nh\u01b0 m\u1ed9t &#8220;b\u1ed9 chia&#8221; t\u00edn hi\u1ec7u th\u1ee5 \u0111\u1ed9ng. Khi m\u1ed9t g\u00f3i d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c g\u1eedi \u0111\u1ebfn m\u1ed9t c\u1ed5ng c\u1ee7a Hub, thi\u1ebft b\u1ecb n\u00e0y s\u1ebd sao ch\u00e9p v\u00e0 truy\u1ec1n g\u00f3i d\u1eef li\u1ec7u \u0111\u00f3 \u0111\u1ebfn t\u1ea5t c\u1ea3 c\u00e1c c\u1ed5ng c\u00f2n l\u1ea1i.<\/p>\n<figure id=\"attachment_31874\" aria-describedby=\"caption-attachment-31874\" style=\"width: 800px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-31874\" src=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/07\/Hub-la-gi.jpg\" alt=\"Hub l\u00e0 g\u00ec?\" width=\"800\" height=\"500\" title=\"\" srcset=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/07\/Hub-la-gi.jpg 800w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/07\/Hub-la-gi-300x188.jpg 300w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/07\/Hub-la-gi-768x480.jpg 768w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/07\/Hub-la-gi-750x469.jpg 750w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-31874\" class=\"wp-caption-text\">Hub l\u00e0 g\u00ec?<\/figcaption><\/figure>\n<p>\u0110i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 m\u1ecdi thi\u1ebft b\u1ecb \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i v\u1edbi Hub \u0111\u1ec1u nh\u1eadn \u0111\u01b0\u1ee3c m\u1ecdi g\u00f3i d\u1eef li\u1ec7u, b\u1ea5t k\u1ec3 g\u00f3i tin \u0111\u00f3 c\u00f3 d\u00e0nh cho ch\u00fang hay kh\u00f4ng. \u0110i\u1ec1u n\u00e0y d\u1eabn \u0111\u1ebfn s\u1ef1 l\u00e3ng ph\u00ed b\u0103ng th\u00f4ng v\u00e0 t\u0103ng nguy c\u01a1 xung \u0111\u1ed9t d\u1eef li\u1ec7u (collision).<\/p>\n<p>Hub th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c m\u1ea1ng LAN r\u1ea5t nh\u1ecf v\u00e0 \u0111\u01a1n gi\u1ea3n, ho\u1eb7c ch\u1ec9 \u0111\u1ec3 th\u1ef1c h\u00e0nh h\u1ecdc t\u1eadp do chi ph\u00ed th\u1ea5p v\u00e0 c\u1ea5u h\u00ecnh d\u1ec5 d\u00e0ng. Tuy nhi\u00ean, trong c\u00e1c m\u00f4i tr\u01b0\u1eddng m\u1ea1ng hi\u1ec7n \u0111\u1ea1i, Hub g\u1ea7n nh\u01b0 kh\u00f4ng c\u00f2n \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Switch-la-gi\"><\/span>Switch l\u00e0 g\u00ec?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Ng\u01b0\u1ee3c l\u1ea1i v\u1edbi Hub, <strong>Switch<\/strong> l\u00e0 m\u1ed9t thi\u1ebft b\u1ecb m\u1ea1ng th\u00f4ng minh h\u01a1n nhi\u1ec1u, ho\u1ea1t \u0111\u1ed9ng ch\u1ee7 y\u1ebfu \u1edf <strong>t\u1ea7ng li\u00ean k\u1ebft d\u1eef li\u1ec7u (Data Link Layer)<\/strong> trong m\u00f4 h\u00ecnh OSI. Switch c\u00f3 kh\u1ea3 n\u0103ng &#8220;h\u1ecdc&#8221; v\u00e0 ghi nh\u1edb <strong>\u0111\u1ecba ch\u1ec9 MAC (Media Access Control)<\/strong> c\u1ee7a c\u00e1c thi\u1ebft b\u1ecb \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i v\u1edbi t\u1eebng c\u1ed5ng c\u1ee7a n\u00f3.<\/p>\n<figure id=\"attachment_31875\" aria-describedby=\"caption-attachment-31875\" style=\"width: 800px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-31875\" src=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/07\/Switch-la-gi.jpg\" alt=\"Switch l\u00e0 g\u00ec?\" width=\"800\" height=\"500\" title=\"\" srcset=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/07\/Switch-la-gi.jpg 800w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/07\/Switch-la-gi-300x188.jpg 300w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/07\/Switch-la-gi-768x480.jpg 768w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/07\/Switch-la-gi-750x469.jpg 750w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-31875\" class=\"wp-caption-text\">Switch l\u00e0 g\u00ec?<\/figcaption><\/figure>\n<p>Khi m\u1ed9t g\u00f3i d\u1eef li\u1ec7u \u0111\u1ebfn Switch, n\u00f3 s\u1ebd ki\u1ec3m tra \u0111\u1ecba ch\u1ec9 MAC \u0111\u00edch c\u1ee7a g\u00f3i tin v\u00e0 ch\u1ec9 chuy\u1ec3n g\u00f3i tin \u0111\u00f3 \u0111\u1ebfn \u0111\u00fang c\u1ed5ng m\u00e0 thi\u1ebft b\u1ecb \u0111\u00edch \u0111ang k\u1ebft n\u1ed1i. \u0110i\u1ec1u n\u00e0y gi\u00fap gi\u1ea3m thi\u1ec3u l\u01b0u l\u01b0\u1ee3ng truy c\u1eadp kh\u00f4ng c\u1ea7n thi\u1ebft, t\u0103ng hi\u1ec7u qu\u1ea3 s\u1eed d\u1ee5ng b\u0103ng th\u00f4ng v\u00e0 gi\u1ea3m \u0111\u00e1ng k\u1ec3 s\u1ed1 l\u01b0\u1ee3ng xung \u0111\u1ed9t d\u1eef li\u1ec7u.<\/p>\n<p>Switch l\u00e0 n\u1ec1n t\u1ea3ng c\u1ee7a h\u1ea7u h\u1ebft c\u00e1c m\u1ea1ng LAN hi\u1ec7n \u0111\u1ea1i, t\u1eeb m\u1ea1ng gia \u0111\u00ecnh \u0111\u1ebfn c\u00e1c h\u1ec7 th\u1ed1ng m\u1ea1ng doanh nghi\u1ec7p ph\u1ee9c t\u1ea1p.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"So-sanh-diem-giong-nhau-giua-Hub-va-Switch\"><\/span>So s\u00e1nh \u0111i\u1ec3m gi\u1ed1ng nhau gi\u1eefa Hub v\u00e0 Switch<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Hub v\u00e0 Switch\u00a0c\u00f3 gi\u1ed1ng nhau kh\u00f4ng? D\u00f9 c\u00f3 nh\u1eefng kh\u00e1c bi\u1ec7t r\u00f5 r\u1ec7t v\u1ec1 nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng, Switch v\u00e0 Hub v\u1eabn c\u00f3 m\u1ed9t s\u1ed1 \u0111i\u1ec3m t\u01b0\u01a1ng \u0111\u1ed3ng c\u01a1 b\u1ea3n, \u0111\u1ed3ng th\u1eddi s\u1edf h\u1eefu nh\u1eefng kh\u00e1c bi\u1ec7t c\u1ed1t l\u00f5i \u0111\u1ecbnh h\u00ecnh vai tr\u00f2 c\u1ee7a ch\u00fang trong m\u1ea1ng.<\/p>\n<p><strong>\u0110i\u1ec3m gi\u1ed1ng nhau gi\u1eefa Switch v\u00e0 Hub l\u00e0:<\/strong><\/p>\n<ul>\n<li>C\u1ea3 hai \u0111\u1ec1u \u0111\u1ea3m nhi\u1ec7m ch\u1ee9c n\u0103ng k\u1ebft n\u1ed1i nhi\u1ec1u m\u00e1y t\u00ednh ho\u1eb7c thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed trong c\u00f9ng m\u1ed9t m\u1ea1ng (LAN), ho\u1ea1t \u0111\u1ed9ng nh\u01b0 m\u1ed9t \u0111i\u1ec3m trung t\u00e2m \u0111\u1ec3 k\u1ebft n\u1ed1i c\u00e1c thi\u1ebft b\u1ecb v\u1edbi nhau.<\/li>\n<li>C\u1ea3 Switch v\u00e0 Hub \u0111\u1ec1u nh\u1eadn d\u1eef li\u1ec7u t\u1eeb m\u1ed9t c\u1ed5ng v\u00e0o v\u00e0 ph\u00e2n ph\u1ed1i ho\u1eb7c truy\u1ec1n d\u1eef li\u1ec7u \u0111\u1ebfn c\u00e1c c\u1ed5ng kh\u00e1c trong thi\u1ebft b\u1ecb.<\/li>\n<li>C\u1ea3 hai \u0111\u1ec1u c\u00f3 kh\u1ea3 n\u0103ng khu\u1ebfch \u0111\u1ea1i t\u00edn hi\u1ec7u ho\u1eb7c g\u00f3i tin \u0111\u1ebfn c\u00e1c c\u1ed5ng (Port) \u0111\u1ec3 truy\u1ec1n \u0111i c\u00e1c thi\u1ebft b\u1ecb kh\u00e1c trong m\u1ea1ng.<\/li>\n<\/ul>\n<p>C\u1ea3 Hub v\u00e0 Switch \u0111\u1ec1u l\u00e0 thi\u1ebft b\u1ecb m\u1ea1ng d\u00f9ng \u0111\u1ec3 k\u1ebft n\u1ed1i c\u00e1c thi\u1ebft b\u1ecb trong m\u1ea1ng LAN, gi\u00fap truy\u1ec1n v\u00e0 ph\u00e2n ph\u1ed1i d\u1eef li\u1ec7u gi\u1eefa c\u00e1c thi\u1ebft b\u1ecb, tuy nhi\u00ean c\u00e1ch th\u1ee9c ho\u1ea1t \u0111\u1ed9ng v\u00e0 hi\u1ec7u su\u1ea5t c\u1ee7a ch\u00fang kh\u00e1c nhau r\u1ea5t nhi\u1ec1u<\/p>\n<h2><span class=\"ez-toc-section\" id=\"So-sanh-diem-khac-nhau-giua-Hub-va-Switch\"><\/span>So s\u00e1nh \u0111i\u1ec3m kh\u00e1c nhau gi\u1eefa Hub v\u00e0 Switch<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Hub v\u00e0 Switch kh\u00e1c nhau nh\u01b0 th\u1ebf n\u00e0o? \u0110\u00e2y l\u00e0 ph\u1ea7n quan tr\u1ecdng nh\u1ea5t \u0111\u1ec3 b\u1ea1n c\u00f3 th\u1ec3 hi\u1ec3u r\u00f5 t\u1ea1i sao <strong>Switch<\/strong> l\u1ea1i v\u01b0\u1ee3t tr\u1ed9i h\u01a1n <strong>Hub<\/strong> trong h\u1ea7u h\u1ebft c\u00e1c \u1ee9ng d\u1ee5ng m\u1ea1ng ng\u00e0y nay. Ch\u00fang ta s\u1ebd c\u00f9ng so s\u00e1nh hub v\u00e0 switch d\u1ef1a tr\u00ean c\u00e1c ti\u00eau ch\u00ed quan tr\u1ecdng nh\u1ea5t.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Nguyen-ly-hoat-dong\"><\/span>Nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u0110\u00e2y l\u00e0 \u0111i\u1ec3m kh\u00e1c bi\u1ec7t c\u01a1 b\u1ea3n nh\u1ea5t quy\u1ebft \u0111\u1ecbnh hi\u1ec7u su\u1ea5t c\u1ee7a t\u1eebng thi\u1ebft b\u1ecb.<\/p>\n<h4>Hub<\/h4>\n<p>Ho\u1ea1t \u0111\u1ed9ng nh\u01b0 m\u1ed9t &#8220;Repeater \u0111a c\u1ed5ng&#8221; (Multi-port Repeater). Khi nh\u1eadn \u0111\u01b0\u1ee3c g\u00f3i d\u1eef li\u1ec7u t\u1eeb m\u1ed9t thi\u1ebft b\u1ecb, Hub s\u1ebd sao ch\u00e9p v\u00e0 g\u1eedi g\u00f3i d\u1eef li\u1ec7u \u0111\u00f3 \u0111\u1ebfn t\u1ea5t c\u1ea3 c\u00e1c c\u1ed5ng c\u00f2n l\u1ea1i c\u1ee7a n\u00f3.<\/p>\n<p>V\u00ed d\u1ee5, n\u1ebfu m\u00e1y t\u00ednh A g\u1eedi d\u1eef li\u1ec7u \u0111\u1ebfn m\u00e1y t\u00ednh B, Hub s\u1ebd g\u1eedi d\u1eef li\u1ec7u \u0111\u00f3 cho c\u1ea3 m\u00e1y t\u00ednh B, C, D&#8230; \u0110i\u1ec1u n\u00e0y gi\u1ed1ng nh\u01b0 vi\u1ec7c b\u1ea1n g\u1ecdi l\u1edbn trong m\u1ed9t c\u0103n ph\u00f2ng, ai c\u0169ng nghe th\u1ea5y d\u00f9 ch\u1ec9 c\u00f3 m\u1ed9t ng\u01b0\u1eddi l\u00e0 \u0111\u1ed1i t\u01b0\u1ee3ng. \u0110i\u1ec1u n\u00e0y t\u1ea1o ra m\u1ed9t l\u01b0\u1ee3ng l\u1edbn l\u01b0u l\u01b0\u1ee3ng kh\u00f4ng c\u1ea7n thi\u1ebft trong m\u1ea1ng, \u0111\u1eb7c bi\u1ec7t khi c\u00f3 nhi\u1ec1u thi\u1ebft b\u1ecb ho\u1ea1t \u0111\u1ed9ng \u0111\u1ed3ng th\u1eddi.<\/p>\n<h4>Switch<\/h4>\n<p>Switch ho\u1ea1t \u0111\u1ed9ng th\u00f4ng minh h\u01a1n r\u1ea5t nhi\u1ec1u nh\u1edd kh\u1ea3 n\u0103ng h\u1ecdc \u0111\u1ecba ch\u1ec9 MAC, khi m\u1ed9t g\u00f3i d\u1eef li\u1ec7u \u0111\u1ebfn Switch, Switch s\u1ebd \u0111\u1ecdc \u0111\u1ecba ch\u1ec9 MAC \u0111\u00edch c\u1ee7a g\u00f3i tin v\u00e0 ch\u1ec9 chuy\u1ec3n g\u00f3i tin \u0111\u00f3 \u0111\u1ebfn \u0111\u00fang c\u1ed5ng m\u00e0 thi\u1ebft b\u1ecb \u0111\u00edch \u0111ang k\u1ebft n\u1ed1i.<\/p>\n<p>\u0110i\u1ec1u n\u00e0y gi\u1ed1ng nh\u01b0 m\u1ed9t ng\u01b0\u1eddi \u0111\u01b0a th\u01b0 bi\u1ebft ch\u00ednh x\u00e1c \u0111\u1ecba ch\u1ec9 nh\u00e0 c\u1ee7a ng\u01b0\u1eddi nh\u1eadn v\u00e0 ch\u1ec9 giao th\u01b0 \u0111\u1ebfn \u0111\u00fang \u0111\u1ecba ch\u1ec9 \u0111\u00f3, kh\u00f4ng giao cho t\u1ea5t c\u1ea3 m\u1ecdi ng\u01b0\u1eddi trong khu ph\u1ed1. B\u1eb1ng c\u00e1ch n\u00e0y, Switch gi\u00fap gi\u1ea3m t\u1ea3i m\u1ea1ng, t\u0103ng hi\u1ec7u qu\u1ea3 truy\u1ec1n d\u1eabn v\u00e0 gi\u1ea3m thi\u1ec3u t\u1ed1i \u0111a c\u00e1c va ch\u1ea1m d\u1eef li\u1ec7u.<\/p>\n<figure id=\"attachment_31876\" aria-describedby=\"caption-attachment-31876\" style=\"width: 762px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-31876\" src=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/07\/Su-khac-nhau-giua-Switch-voi-Hub.jpg\" alt=\"S\u1ef1 kh\u00e1c nhau gi\u1eefa Switch v\u1edbi Hub\" width=\"762\" height=\"395\" title=\"\" srcset=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/07\/Su-khac-nhau-giua-Switch-voi-Hub.jpg 762w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/07\/Su-khac-nhau-giua-Switch-voi-Hub-300x156.jpg 300w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/07\/Su-khac-nhau-giua-Switch-voi-Hub-750x389.jpg 750w\" sizes=\"auto, (max-width: 762px) 100vw, 762px\" \/><figcaption id=\"caption-attachment-31876\" class=\"wp-caption-text\">S\u1ef1 kh\u00e1c nhau gi\u1eefa Switch v\u1edbi Hub<\/figcaption><\/figure>\n<h3><span class=\"ez-toc-section\" id=\"Hieu-suat-mang\"><\/span>Hi\u1ec7u su\u1ea5t m\u1ea1ng<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>S\u1ef1 kh\u00e1c bi\u1ec7t trong nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng d\u1eabn \u0111\u1ebfn s\u1ef1 ch\u00eanh l\u1ec7ch l\u1edbn v\u1ec1 hi\u1ec7u su\u1ea5t.<\/p>\n<h4>Hub<\/h4>\n<p>T\u1ea5t c\u1ea3 c\u00e1c thi\u1ebft b\u1ecb k\u1ebft n\u1ed1i v\u1edbi Hub \u0111\u1ec1u chia s\u1ebb c\u00f9ng m\u1ed9t <strong>mi\u1ec1n xung \u0111\u1ed9t (collision domain)<\/strong> v\u00e0 c\u00f9ng m\u1ed9t <strong>mi\u1ec1n qu\u1ea3ng b\u00e1 (broadcast domain)<\/strong>. Khi nhi\u1ec1u thi\u1ebft b\u1ecb c\u1ed1 g\u1eafng g\u1eedi d\u1eef li\u1ec7u c\u00f9ng l\u00fac, kh\u1ea3 n\u0103ng x\u1ea3y ra xung \u0111\u1ed9t r\u1ea5t cao, d\u1eabn \u0111\u1ebfn vi\u1ec7c d\u1eef li\u1ec7u b\u1ecb h\u1ecfng ho\u1eb7c ph\u1ea3i g\u1eedi l\u1ea1i, l\u00e0m gi\u1ea3m t\u1ed1c \u0111\u1ed9 v\u00e0 hi\u1ec7u su\u1ea5t t\u1ed5ng th\u1ec3 c\u1ee7a m\u1ea1ng.<\/p>\n<p>\u0110i\u1ec1u n\u00e0y gi\u1ed1ng nh\u01b0 m\u1ed9t \u0111\u01b0\u1eddng cao t\u1ed1c ch\u1ec9 c\u00f3 m\u1ed9t l\u00e0n xe, r\u1ea5t d\u1ec5 x\u1ea3y ra \u00f9n t\u1eafc khi c\u00f3 nhi\u1ec1u xe c\u00f9ng \u0111i, Hub ho\u1ea1t \u0111\u1ed9ng \u1edf ch\u1ebf \u0111\u1ed9 b\u00e1n song c\u00f4ng (half-duplex), ngh\u0129a l\u00e0 m\u1ed9t thi\u1ebft b\u1ecb ch\u1ec9 c\u00f3 th\u1ec3 g\u1eedi ho\u1eb7c nh\u1eadn d\u1eef li\u1ec7u t\u1ea1i m\u1ed9t th\u1eddi \u0111i\u1ec3m.<\/p>\n<h4>Switch<\/h4>\n<p>M\u1ed7i c\u1ed5ng c\u1ee7a Switch l\u00e0 m\u1ed9t <strong>mi\u1ec1n xung \u0111\u1ed9t ri\u00eang bi\u1ec7t<\/strong>, c\u00f3 ngh\u0129a l\u00e0 c\u00e1c thi\u1ebft b\u1ecb k\u1ebft n\u1ed1i v\u1edbi c\u00e1c c\u1ed5ng kh\u00e1c nhau c\u00f3 th\u1ec3 g\u1eedi v\u00e0 nh\u1eadn d\u1eef li\u1ec7u c\u00f9ng l\u00fac m\u00e0 kh\u00f4ng g\u00e2y ra xung \u0111\u1ed9t gi\u00fap t\u1ed1i \u01b0u h\u00f3a b\u0103ng th\u00f4ng v\u00e0 n\u00e2ng cao hi\u1ec7u su\u1ea5t m\u1ea1ng \u0111\u00e1ng k\u1ec3.<\/p>\n<p>Switch c\u00f3 th\u1ec3 ho\u1ea1t \u0111\u1ed9ng \u1edf ch\u1ebf \u0111\u1ed9 song c\u00f4ng to\u00e0n ph\u1ea7n (full-duplex), cho ph\u00e9p g\u1eedi v\u00e0 nh\u1eadn d\u1eef li\u1ec7u \u0111\u1ed3ng th\u1eddi tr\u00ean m\u1ed7i c\u1ed5ng, nh\u00e2n \u0111\u00f4i hi\u1ec7u qu\u1ea3 truy\u1ec1n t\u1ea3i. \u0110i\u1ec1u n\u00e0y gi\u1ed1ng nh\u01b0 vi\u1ec7c m\u1ed7i xe c\u00f3 m\u1ed9t l\u00e0n \u0111\u01b0\u1eddng ri\u00eang tr\u00ean cao t\u1ed1c, gi\u00fap l\u01b0u th\u00f4ng m\u01b0\u1ee3t m\u00e0 h\u01a1n r\u1ea5t nhi\u1ec1u.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Kha-nang-bao-mat\"><\/span>Kh\u1ea3 n\u0103ng b\u1ea3o m\u1eadt<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>V\u1ec1 m\u1eb7t b\u1ea3o m\u1eadt, <strong>Switch<\/strong> cung c\u1ea5p m\u00f4i tr\u01b0\u1eddng an to\u00e0n h\u01a1n nhi\u1ec1u so v\u1edbi <strong>Hub<\/strong>.<\/p>\n<h4>Hub<\/h4>\n<p>V\u00ec Hub g\u1eedi t\u1ea5t c\u1ea3 d\u1eef li\u1ec7u \u0111\u1ebfn m\u1ecdi c\u1ed5ng, b\u1ea5t k\u1ef3 ai k\u1ebft n\u1ed1i v\u00e0o Hub c\u0169ng c\u00f3 th\u1ec3 d\u1ec5 d\u00e0ng &#8220;nghe l\u00e9n&#8221; (sniff) t\u1ea5t c\u1ea3 l\u01b0u l\u01b0\u1ee3ng m\u1ea1ng \u0111ang di\u1ec5n ra tr\u00ean \u0111\u00f3. \u0110i\u1ec1u n\u00e0y t\u1ea1o ra m\u1ed9t l\u1ed7 h\u1ed5ng b\u1ea3o m\u1eadt nghi\u00eam tr\u1ecdng, d\u1ec5 b\u1ecb \u0111\u00e1nh c\u1eafp th\u00f4ng tin nh\u1ea1y c\u1ea3m, \u0111\u00e2y l\u00e0 m\u1ed9t r\u1ee7i ro l\u1edbn \u0111\u1ed1i v\u1edbi d\u1eef li\u1ec7u c\u00e1 nh\u00e2n v\u00e0 doanh nghi\u1ec7p.<\/p>\n<h4>Switch<\/h4>\n<p>D\u1eef li\u1ec7u ch\u1ec9 \u0111\u01b0\u1ee3c g\u1eedi \u0111\u1ebfn \u0111\u00fang c\u1ed5ng c\u1ee7a thi\u1ebft b\u1ecb \u0111\u00edch gi\u00fap b\u1ea3o m\u1eadt th\u00f4ng tin t\u1ed1t h\u01a1n v\u00ec c\u00e1c thi\u1ebft b\u1ecb kh\u00e1c kh\u00f4ng nh\u1eadn \u0111\u01b0\u1ee3c g\u00f3i tin kh\u00f4ng d\u00e0nh cho m\u00ecnh. M\u1eb7c d\u00f9 c\u00e1c k\u1ef9 thu\u1eadt t\u1ea5n c\u00f4ng ph\u1ee9c t\u1ea1p v\u1eabn c\u00f3 th\u1ec3 khai th\u00e1c \u0111i\u1ec3m y\u1ebfu c\u1ee7a Switch, nh\u01b0ng v\u1ec1 c\u01a1 b\u1ea3n, n\u00f3 cung c\u1ea5p m\u1ed9t l\u1edbp b\u1ea3o v\u1ec7 cao h\u01a1n nhi\u1ec1u so v\u1edbi Hub.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Tinh-nang-va-do-phuc-tap\"><\/span>T\u00ednh n\u0103ng v\u00e0 \u0111\u1ed9 ph\u1ee9c t\u1ea1p<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>So s\u00e1nh ch\u1ee9c n\u0103ng c\u1ee7a Hub v\u00e0 Switch, <strong>Switch<\/strong> cung c\u1ea5p nhi\u1ec1u t\u00ednh n\u0103ng ti\u00ean ti\u1ebfn m\u00e0 <strong>Hub<\/strong> kh\u00f4ng c\u00f3, tuy nhi\u00ean \u0111i\u1ec1u n\u00e0y c\u0169ng \u0111i k\u00e8m v\u1edbi \u0111\u1ed9 ph\u1ee9c t\u1ea1p cao h\u01a1n.<\/p>\n<h4>Hub<\/h4>\n<p>Hub l\u00e0 thi\u1ebft b\u1ecb plug-and-play \u0111\u01a1n gi\u1ea3n, kh\u00f4ng c\u00f3 b\u1ea5t k\u1ef3 t\u00ednh n\u0103ng qu\u1ea3n l\u00fd hay c\u1ea5u h\u00ecnh n\u00e0o. B\u1ea1n ch\u1ec9 c\u1ea7n c\u1eafm c\u00e1p v\u00e0o l\u00e0 n\u00f3 ho\u1ea1t \u0111\u1ed9ng. S\u1ef1 \u0111\u01a1n gi\u1ea3n n\u00e0y l\u00e0 m\u1ed9t \u01b0u \u0111i\u1ec3m n\u1ebfu b\u1ea1n ch\u1ec9 c\u1ea7n m\u1ed9t gi\u1ea3i ph\u00e1p k\u1ebft n\u1ed1i c\u1ef1c k\u1ef3 c\u01a1 b\u1ea3n.<\/p>\n<h4>Switch<\/h4>\n<p>C\u00e1c lo\u1ea1i Switch hi\u1ec7n \u0111\u1ea1i, \u0111\u1eb7c bi\u1ec7t l\u00e0 <strong>Managed Switch<\/strong>, cung c\u1ea5p v\u00f4 s\u1ed1 t\u00ednh n\u0103ng n\u00e2ng cao nh\u01b0:<\/p>\n<ul>\n<li><strong>VLAN (Virtual Local Area Network):<\/strong> VLAN gi\u00fap t\u00e1ch bi\u1ec7t mi\u1ec1n qu\u1ea3ng b\u00e1 (broadcast domain), gi\u1ea3m t\u1ea3i m\u1ea1ng Chia m\u1ea1ng v\u1eadt l\u00fd th\u00e0nh nhi\u1ec1u m\u1ea1ng logic ri\u00eang bi\u1ec7t \u0111\u1ec3 t\u0103ng c\u01b0\u1eddng b\u1ea3o m\u1eadt v\u00e0 qu\u1ea3n l\u00fd.<\/li>\n<li><strong>QoS (Quality of Service):<\/strong> \u01afu ti\u00ean l\u01b0u l\u01b0\u1ee3ng truy c\u1eadp cho c\u00e1c \u1ee9ng d\u1ee5ng quan tr\u1ecdng (v\u00ed d\u1ee5: VoIP, video conferencing) \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o ch\u1ea5t l\u01b0\u1ee3ng.<\/li>\n<li><strong>PoE (Power over Ethernet):<\/strong> Cung c\u1ea5p ngu\u1ed3n \u0111i\u1ec7n qua c\u00e1p Ethernet cho c\u00e1c thi\u1ebft b\u1ecb nh\u01b0 camera IP, \u0111i\u1ec7n tho\u1ea1i VoIP, gi\u00fap gi\u1ea3m b\u1edbt d\u00e2y c\u00e1p \u0111i\u1ec7n.<\/li>\n<li><strong>Spanning Tree Protocol (STP):<\/strong> STP c\u00f3 vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c ng\u0103n v\u00f2ng l\u1eb7p v\u00e0 \u0111\u01b0\u1ee3c t\u00edch h\u1ee3p s\u1eb5n trong ph\u1ea7n l\u1edbn Switch doanh nghi\u1ec7p hi\u1ec7n nay. T\u1ea5t nhi\u00ean, v\u1edbi nhi\u1ec1u t\u00ednh n\u0103ng h\u01a1n, vi\u1ec7c c\u1ea5u h\u00ecnh v\u00e0 qu\u1ea3n l\u00fd Switch c\u0169ng ph\u1ee9c t\u1ea1p h\u01a1n so v\u1edbi Hub, \u0111\u00f2i h\u1ecfi ng\u01b0\u1eddi d\u00f9ng c\u00f3 ki\u1ebfn th\u1ee9c nh\u1ea5t \u0111\u1ecbnh v\u1ec1 m\u1ea1ng.<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"Chi-phi\"><\/span>Chi ph\u00ed<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>V\u1ec1 m\u1eb7t chi ph\u00ed, <strong>Hub<\/strong> r\u1ebb h\u01a1n \u0111\u00e1ng k\u1ec3 so v\u1edbi <strong>Switch<\/strong>, nh\u01b0ng \u0111i k\u00e8m v\u1edbi hi\u1ec7u su\u1ea5t v\u00e0 b\u1ea3o m\u1eadt th\u1ea5p h\u01a1n.<\/p>\n<h4>Hub<\/h4>\n<p>Do c\u00f4ng ngh\u1ec7 \u0111\u01a1n gi\u1ea3n, Hub c\u00f3 gi\u00e1 th\u00e0nh r\u1ea5t th\u1ea5p, th\u01b0\u1eddng ch\u1ec9 v\u00e0i tr\u0103m ngh\u00ecn \u0111\u1ed3ng. \u0110i\u1ec1u n\u00e0y t\u1eebng l\u00e0 m\u1ed9t l\u1ee3i th\u1ebf l\u1edbn khi ng\u00e2n s\u00e1ch h\u1ea1n ch\u1ebf.<\/p>\n<h4>Switch<\/h4>\n<p>Gi\u00e1 th\u00e0nh c\u1ee7a Switch cao h\u01a1n Hub, dao \u0111\u1ed9ng t\u1eeb v\u00e0i tr\u0103m ngh\u00ecn \u0111\u1ebfn h\u00e0ng ch\u1ee5c tri\u1ec7u \u0111\u1ed3ng t\u00f9y thu\u1ed9c v\u00e0o s\u1ed1 l\u01b0\u1ee3ng c\u1ed5ng, t\u1ed1c \u0111\u1ed9, v\u00e0 c\u00e1c t\u00ednh n\u0103ng qu\u1ea3n l\u00fd n\u00e2ng cao. Tuy nhi\u00ean, m\u1ee9c \u0111\u1ea7u t\u01b0 n\u00e0y ho\u00e0n to\u00e0n x\u1ee9ng \u0111\u00e1ng v\u1edbi hi\u1ec7u su\u1ea5t, \u0111\u1ed9 tin c\u1eady v\u00e0 b\u1ea3o m\u1eadt m\u00e0 Switch mang l\u1ea1i.<\/p>\n<p>Ngo\u00e0i ra, Switch doanh nghi\u1ec7p ho\u1eb7c Switch h\u1ed7 tr\u1ee3 Layer 3 c\u00f3 th\u1ec3 v\u01b0\u1ee3t 50 tri\u1ec7u VN\u0110.<\/p>\n<p>\u0110\u1ec3 d\u1ec5 h\u00ecnh dung, h\u00e3y xem qua b\u1ea3ng so s\u00e1nh hub v\u00e0 switch d\u01b0\u1edbi \u0111\u00e2y:<\/p>\n<table style=\"width: 100%; border-collapse: collapse; font-family: sans-serif; border: 1px solid #0D6EFD;\">\n<thead>\n<tr style=\"background-color: #0d6efd; color: #fff;\">\n<th style=\"border: 1px solid #0d6efd; padding: 8px; text-align: center;\"><span style=\"color: #ffffff;\"><strong>Ti\u00eau ch\u00ed<\/strong><\/span><\/th>\n<th style=\"border: 1px solid #0d6efd; padding: 8px; text-align: center;\"><span style=\"color: #ffffff;\"><strong>Hub<\/strong><\/span><\/th>\n<th style=\"border: 1px solid #0d6efd; padding: 8px; text-align: center;\"><span style=\"color: #ffffff;\"><strong>Switch<\/strong><\/span><\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"border: 1px solid #0D6EFD; padding: 8px;\"><span style=\"color: #000000;\">L\u1edbp ho\u1ea1t \u0111\u1ed9ng<\/span><\/td>\n<td style=\"border: 1px solid #0D6EFD; padding: 8px;\"><span style=\"color: #000000;\">T\u1ea7ng v\u1eadt l\u00fd (Layer 1)<\/span><\/td>\n<td style=\"border: 1px solid #0D6EFD; padding: 8px;\"><span style=\"color: #000000;\">M\u1ed9t s\u1ed1 lo\u1ea1i Managed Switch h\u1ed7 tr\u1ee3 Layer 3 (Layer 3 Switch), c\u00f2n l\u1ea1i ch\u1ee7 y\u1ebfu l\u00e0 Layer 2<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #0D6EFD; padding: 8px;\"><span style=\"color: #000000;\">Nguy\u00ean l\u00fd truy\u1ec1n<\/span><\/td>\n<td style=\"border: 1px solid #0D6EFD; padding: 8px;\"><span style=\"color: #000000;\">Broadcast (G\u1eedi t\u1edbi t\u1ea5t c\u1ea3)<\/span><\/td>\n<td style=\"border: 1px solid #0D6EFD; padding: 8px;\"><span style=\"color: #000000;\">Chuy\u1ec3n m\u1ea1ch (G\u1eedi t\u1edbi \u0111\u00fang \u0111\u00edch b\u1eb1ng MAC address)<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #0D6EFD; padding: 8px;\"><span style=\"color: #000000;\">B\u0103ng th\u00f4ng<\/span><\/td>\n<td style=\"border: 1px solid #0D6EFD; padding: 8px;\"><span style=\"color: #000000;\">Chia s\u1ebb (Share bandwidth)<\/span><\/td>\n<td style=\"border: 1px solid #0D6EFD; padding: 8px;\"><span style=\"color: #000000;\">D\u00e0nh ri\u00eang (Dedicated bandwidth)<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #0D6EFD; padding: 8px;\"><span style=\"color: #000000;\">Mi\u1ec1n xung \u0111\u1ed9t<\/span><\/td>\n<td style=\"border: 1px solid #0D6EFD; padding: 8px;\"><span style=\"color: #000000;\">M\u1ed9t mi\u1ec1n xung \u0111\u1ed9t l\u1edbn<\/span><\/td>\n<td style=\"border: 1px solid #0D6EFD; padding: 8px;\"><span style=\"color: #000000;\">M\u1ed7i c\u1ed5ng l\u00e0 m\u1ed9t mi\u1ec1n xung \u0111\u1ed9t ri\u00eang<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #0D6EFD; padding: 8px;\"><span style=\"color: #000000;\">Mi\u1ec1n qu\u1ea3ng b\u00e1<\/span><\/td>\n<td style=\"border: 1px solid #0D6EFD; padding: 8px;\"><span style=\"color: #000000;\">M\u1ed9t mi\u1ec1n qu\u1ea3ng b\u00e1 l\u1edbn<\/span><\/td>\n<td style=\"border: 1px solid #0D6EFD; padding: 8px;\"><span style=\"color: #000000;\">M\u1ed9t mi\u1ec1n qu\u1ea3ng b\u00e1 l\u1edbn (c\u00f3 th\u1ec3 ph\u00e2n chia b\u1eb1ng VLAN tr\u00ean Switch Managed)<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #0D6EFD; padding: 8px;\"><span style=\"color: #000000;\">Hi\u1ec7u su\u1ea5t<\/span><\/td>\n<td style=\"border: 1px solid #0D6EFD; padding: 8px;\"><span style=\"color: #000000;\">Th\u1ea5p, d\u1ec5 t\u1eafc ngh\u1ebdn<\/span><\/td>\n<td style=\"border: 1px solid #0D6EFD; padding: 8px;\"><span style=\"color: #000000;\">Cao, \u1ed5n \u0111\u1ecbnh<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #0D6EFD; padding: 8px;\"><span style=\"color: #000000;\">B\u1ea3o m\u1eadt<\/span><\/td>\n<td style=\"border: 1px solid #0D6EFD; padding: 8px;\"><span style=\"color: #000000;\">K\u00e9m, d\u1ec5 b\u1ecb nghe l\u00e9n<\/span><\/td>\n<td style=\"border: 1px solid #0D6EFD; padding: 8px;\"><span style=\"color: #000000;\">T\u1ed1t h\u01a1n, d\u1eef li\u1ec7u ch\u1ec9 \u0111\u1ebfn \u0111\u00fang \u0111\u00edch<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #0D6EFD; padding: 8px;\"><span style=\"color: #000000;\">T\u00ednh n\u0103ng<\/span><\/td>\n<td style=\"border: 1px solid #0D6EFD; padding: 8px;\"><span style=\"color: #000000;\">R\u1ea5t c\u01a1 b\u1ea3n, kh\u00f4ng c\u00f3 t\u00ednh n\u0103ng n\u00e2ng cao<\/span><\/td>\n<td style=\"border: 1px solid #0D6EFD; padding: 8px;\"><span style=\"color: #000000;\">Nhi\u1ec1u t\u00ednh n\u0103ng n\u00e2ng cao (VLAN, QoS, STP, PoE)<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #0D6EFD; padding: 8px;\"><span style=\"color: #000000;\">Chi ph\u00ed<\/span><\/td>\n<td style=\"border: 1px solid #0D6EFD; padding: 8px;\"><span style=\"color: #000000;\">R\u1ebb<\/span><\/td>\n<td style=\"border: 1px solid #0D6EFD; padding: 8px;\"><span style=\"color: #000000;\">\u0110\u1eaft h\u01a1n Hub, t\u00f9y thu\u1ed9c v\u00e0o s\u1ed1 c\u1ed5ng v\u00e0 t\u00ednh n\u0103ng<\/span><\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #0D6EFD; padding: 8px;\"><span style=\"color: #000000;\">\u1ee8ng d\u1ee5ng<\/span><\/td>\n<td style=\"border: 1px solid #0D6EFD; padding: 8px;\"><span style=\"color: #000000;\">H\u1ea7u nh\u01b0 kh\u00f4ng c\u00f2n d\u00f9ng, m\u1ea1ng r\u1ea5t nh\u1ecf, h\u1ecdc t\u1eadp<\/span><\/td>\n<td style=\"border: 1px solid #0D6EFD; padding: 8px;\"><span style=\"color: #000000;\">M\u1ea1ng gia \u0111\u00ecnh, v\u0103n ph\u00f2ng, doanh nghi\u1ec7p l\u1edbn, trung t\u00e2m d\u1eef li\u1ec7u<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2><span class=\"ez-toc-section\" id=\"Nen-dung-Hub-va-Switch-trong-truong-hop-nao\"><\/span>N\u00ean d\u00f9ng Hub v\u00e0 Switch trong tr\u01b0\u1eddng h\u1ee3p n\u00e0o?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Sau khi \u0111\u00e3 hi\u1ec3u r\u00f5 s\u1ef1 kh\u00e1c bi\u1ec7t, c\u00e2u h\u1ecfi \u0111\u1eb7t ra l\u00e0 khi n\u00e0o b\u1ea1n n\u00ean s\u1eed d\u1ee5ng <strong>Switch<\/strong> v\u00e0 khi n\u00e0o th\u00ec <strong>Hub<\/strong> v\u1eabn c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c c\u00e2n nh\u1eafc?<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Khi-nao-nen-chon-thiet-bi-Hub\"><\/span>Khi n\u00e0o n\u00ean ch\u1ecdn thi\u1ebft b\u1ecb Hub?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Trong m\u00f4i tr\u01b0\u1eddng m\u1ea1ng hi\u1ec7n \u0111\u1ea1i, vi\u1ec7c s\u1eed d\u1ee5ng <strong>Hub<\/strong> g\u1ea7n nh\u01b0 kh\u00f4ng \u0111\u01b0\u1ee3c khuy\u1ebfn ngh\u1ecb. Tuy nhi\u00ean, n\u00f3 v\u1eabn c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c xem x\u00e9t trong m\u1ed9t s\u1ed1 tr\u01b0\u1eddng h\u1ee3p r\u1ea5t \u0111\u1eb7c bi\u1ec7t v\u00e0 h\u1ea1n ch\u1ebf:<\/p>\n<ul>\n<li><strong>M\u1ee5c \u0111\u00edch h\u1ecdc t\u1eadp v\u00e0 th\u1eed nghi\u1ec7m:<\/strong> V\u1edbi chi ph\u00ed c\u1ef1c th\u1ea5p, Hub c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c ph\u00f2ng lab \u0111\u1ec3 minh h\u1ecda c\u00e1c kh\u00e1i ni\u1ec7m m\u1ea1ng c\u01a1 b\u1ea3n nh\u01b0 va ch\u1ea1m d\u1eef li\u1ec7u (collision) ho\u1eb7c ho\u1ea1t \u0111\u1ed9ng c\u1ee7a t\u1ea7ng v\u1eadt l\u00fd.<\/li>\n<li><strong>M\u1ea1ng c\u1ef1c k\u1ef3 nh\u1ecf v\u00e0 t\u1ea1m th\u1eddi:<\/strong> N\u1ebfu b\u1ea1n c\u1ea7n k\u1ebft n\u1ed1i 2-3 thi\u1ebft b\u1ecb trong m\u1ed9t th\u1eddi gian ng\u1eafn, kh\u00f4ng \u0111\u00f2i h\u1ecfi hi\u1ec7u su\u1ea5t cao v\u00e0 kh\u00f4ng c\u00f3 b\u1ea5t k\u1ef3 y\u00eau c\u1ea7u b\u1ea3o m\u1eadt n\u00e0o (v\u00ed d\u1ee5: chia s\u1ebb d\u1eef li\u1ec7u gi\u1eefa v\u00e0i m\u00e1y t\u00ednh trong m\u1ed9t s\u1ef1 ki\u1ec7n t\u1ea1m th\u1eddi), Hub c\u00f3 th\u1ec3 &#8220;t\u1ea1m&#8221; \u0111\u00e1p \u1ee9ng.<\/li>\n<li><strong>Khi kh\u00f4ng c\u00f3 l\u1ef1a ch\u1ecdn n\u00e0o kh\u00e1c:<\/strong> \u0110\u00e2y l\u00e0 tr\u01b0\u1eddng h\u1ee3p r\u1ea5t hi\u1ebfm, nh\u01b0ng n\u1ebfu b\u1ea1n ho\u00e0n to\u00e0n kh\u00f4ng c\u00f3 ng\u00e2n s\u00e1ch v\u00e0 ch\u1ec9 c\u00f3 m\u1ed9t Hub c\u0169 k\u1ef9, n\u00f3 v\u1eabn c\u00f3 th\u1ec3 cung c\u1ea5p kh\u1ea3 n\u0103ng k\u1ebft n\u1ed1i c\u01a1 b\u1ea3n nh\u1ea5t.<\/li>\n<\/ul>\n<p><strong>L\u01b0u \u00fd quan tr\u1ecdng:<\/strong> Ngay c\u1ea3 trong nh\u1eefng tr\u01b0\u1eddng h\u1ee3p tr\u00ean, vi\u1ec7c s\u1eed d\u1ee5ng Switch c\u0169 ho\u1eb7c Switch c\u1ea5p th\u1ea5p v\u1eabn l\u00e0 m\u1ed9t l\u1ef1a ch\u1ecdn t\u1ed1t h\u01a1n nhi\u1ec1u so v\u1edbi Hub v\u1ec1 m\u1ecdi m\u1eb7t.<\/p>\n<figure id=\"attachment_31877\" aria-describedby=\"caption-attachment-31877\" style=\"width: 800px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-31877\" src=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/07\/Khi-nao-nen-su-dung-Switch-hay-Hub.jpg\" alt=\"Khi n\u00e0o n\u00ean s\u1eed d\u1ee5ng Switch hay Hub?\" width=\"800\" height=\"500\" title=\"\" srcset=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/07\/Khi-nao-nen-su-dung-Switch-hay-Hub.jpg 800w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/07\/Khi-nao-nen-su-dung-Switch-hay-Hub-300x188.jpg 300w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/07\/Khi-nao-nen-su-dung-Switch-hay-Hub-768x480.jpg 768w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2025\/07\/Khi-nao-nen-su-dung-Switch-hay-Hub-750x469.jpg 750w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-31877\" class=\"wp-caption-text\">Khi n\u00e0o n\u00ean s\u1eed d\u1ee5ng Switch hay Hub?<\/figcaption><\/figure>\n<h3><span class=\"ez-toc-section\" id=\"Khi-nao-nen-chon-thiet-bi-Switch\"><\/span>Khi n\u00e0o n\u00ean ch\u1ecdn thi\u1ebft b\u1ecb Switch?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><strong>Switch<\/strong> l\u00e0 l\u1ef1a ch\u1ecdn ti\u00eau chu\u1ea9n v\u00e0 t\u1ed1i \u01b0u cho h\u1ea7u h\u1ebft m\u1ecdi m\u00f4i tr\u01b0\u1eddng m\u1ea1ng ng\u00e0y nay, t\u1eeb c\u00e1 nh\u00e2n \u0111\u1ebfn doanh nghi\u1ec7p l\u1edbn.<\/p>\n<ul>\n<li><strong>M\u1ea1ng gia \u0111\u00ecnh:<\/strong> N\u1ebfu b\u1ea1n c\u00f3 nhi\u1ec1u h\u01a1n 2 thi\u1ebft b\u1ecb c\u1ea7n k\u1ebft n\u1ed1i m\u1ea1ng c\u00f3 d\u00e2y (m\u00e1y t\u00ednh, smart TV, console game, NAS), m\u1ed9t Switch nh\u1ecf s\u1ebd gi\u00fap m\u1ea1ng c\u1ee7a b\u1ea1n ho\u1ea1t \u0111\u1ed9ng \u1ed5n \u0111\u1ecbnh v\u00e0 hi\u1ec7u qu\u1ea3 h\u01a1n r\u1ea5t nhi\u1ec1u so v\u1edbi vi\u1ec7c ch\u1ec9 d\u1ef1a v\u00e0o c\u1ed5ng LAN c\u1ee7a router.<\/li>\n<li><strong>V\u0103n ph\u00f2ng nh\u1ecf v\u00e0 v\u1eeba (SMB):<\/strong> Switch l\u00e0 x\u01b0\u01a1ng s\u1ed1ng c\u1ee7a m\u1ecdi m\u1ea1ng v\u0103n ph\u00f2ng. N\u00f3 \u0111\u1ea3m b\u1ea3o c\u00e1c m\u00e1y t\u00ednh, m\u00e1y in, m\u00e1y ch\u1ee7, camera IP ho\u1ea1t \u0111\u1ed9ng tr\u01a1n tru, cung c\u1ea5p b\u0103ng th\u00f4ng \u0111\u1ee7 l\u1edbn v\u00e0 \u0111\u1ed9 b\u1ea3o m\u1eadt c\u1ea7n thi\u1ebft cho d\u1eef li\u1ec7u kinh doanh.<\/li>\n<li><strong>Doanh nghi\u1ec7p l\u1edbn v\u00e0 trung t\u00e2m d\u1eef li\u1ec7u:<\/strong> C\u00e1c Switch c\u1ea5p doanh nghi\u1ec7p (Enterprise Switch) v\u1edbi c\u00e1c t\u00ednh n\u0103ng Layer 3, VLAN, QoS, v\u00e0 kh\u1ea3 n\u0103ng qu\u1ea3n l\u00fd chuy\u00ean s\u00e2u l\u00e0 kh\u00f4ng th\u1ec3 thi\u1ebfu \u0111\u1ec3 x\u00e2y d\u1ef1ng m\u1ed9t h\u1ea1 t\u1ea7ng m\u1ea1ng ph\u1ee9c t\u1ea1p, c\u00f3 kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng v\u00e0 ch\u1ecbu l\u1ed7i cao.<\/li>\n<li><strong>M\u1ea1ng y\u00eau c\u1ea7u hi\u1ec7u su\u1ea5t cao:<\/strong> \u0110\u1ed1i v\u1edbi c\u00e1c \u1ee9ng d\u1ee5ng \u0111\u00f2i h\u1ecfi b\u0103ng th\u00f4ng l\u1edbn nh\u01b0 truy\u1ec1n t\u1ea3i video 4K, ch\u01a1i game tr\u1ef1c tuy\u1ebfn, ho\u1eb7c sao l\u01b0u d\u1eef li\u1ec7u, Switch v\u1edbi kh\u1ea3 n\u0103ng chuy\u1ec3n m\u1ea1ch th\u00f4ng minh v\u00e0 b\u0103ng th\u00f4ng d\u00e0nh ri\u00eang s\u1ebd lo\u1ea1i b\u1ecf t\u1eafc ngh\u1ebdn, \u0111\u1ea3m b\u1ea3o tr\u1ea3i nghi\u1ec7m m\u01b0\u1ee3t m\u00e0.<\/li>\n<li><strong>Khi c\u1ea7n b\u1ea3o m\u1eadt d\u1eef li\u1ec7u:<\/strong> Switch gi\u1edbi h\u1ea1n d\u1eef li\u1ec7u ch\u1ec9 \u0111\u1ebfn \u0111\u00fang thi\u1ebft b\u1ecb \u0111\u00edch, gi\u00fap gi\u1ea3m thi\u1ec3u r\u1ee7i ro b\u1ecb nghe l\u00e9n so v\u1edbi Hub.<\/li>\n<li><strong>Khi c\u1ea7n m\u1edf r\u1ed9ng t\u00ednh n\u0103ng:<\/strong> V\u1edbi c\u00e1c t\u00ednh n\u0103ng nh\u01b0 PoE, VLAN, QoS, Switch kh\u00f4ng ch\u1ec9 k\u1ebft n\u1ed1i m\u00e0 c\u00f2n gi\u00fap b\u1ea1n qu\u1ea3n l\u00fd v\u00e0 t\u1ed1i \u01b0u h\u00f3a m\u1ea1ng c\u1ee7a m\u00ecnh m\u1ed9t c\u00e1ch linh ho\u1ea1t.<\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"Cau-hoi-thuong-gap-ve-Switch-va-Hub-FAQ\"><\/span>C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p v\u1ec1 Switch v\u00e0 Hub (FAQ)<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"Switch-va-Hub-cai-nao-tot-hon\"><\/span>Switch v\u00e0 Hub c\u00e1i n\u00e0o t\u1ed1t h\u01a1n?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Trong h\u1ea7u h\u1ebft c\u00e1c tr\u01b0\u1eddng h\u1ee3p, Switch t\u1ed1t h\u01a1n Hub v\u1ec1 m\u1ecdi m\u1eb7t: hi\u1ec7u su\u1ea5t, b\u1ea3o m\u1eadt, kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng v\u00e0 t\u00ednh n\u0103ng. Hub ch\u1ec9 ph\u00f9 h\u1ee3p trong m\u00f4i tr\u01b0\u1eddng h\u1ecdc t\u1eadp ho\u1eb7c th\u1eed nghi\u1ec7m \u0111\u01a1n gi\u1ea3n.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Switch-co-thay-the-hoan-toan-duoc-Hub-khong\"><\/span>Switch c\u00f3 thay th\u1ebf ho\u00e0n to\u00e0n \u0111\u01b0\u1ee3c Hub kh\u00f4ng?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>C\u00f3. Switch kh\u00f4ng ch\u1ec9 thay th\u1ebf \u0111\u01b0\u1ee3c m\u00e0 c\u00f2n l\u00e0 n\u00e2ng c\u1ea5p to\u00e0n di\u1ec7n cho Hub. C\u00e1c h\u1ec7 th\u1ed1ng m\u1ea1ng hi\u1ec7n \u0111\u1ea1i g\u1ea7n nh\u01b0 kh\u00f4ng c\u00f2n s\u1eed d\u1ee5ng Hub n\u1eefa.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Tai-sao-Hub-lai-bi-loai-bo-dan\"><\/span>T\u1ea1i sao Hub l\u1ea1i b\u1ecb lo\u1ea1i b\u1ecf d\u1ea7n?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>V\u00ec Hub ho\u1ea1t \u0111\u1ed9ng k\u00e9m hi\u1ec7u qu\u1ea3, d\u1ec5 x\u1ea3y ra xung \u0111\u1ed9t d\u1eef li\u1ec7u v\u00e0 kh\u00f4ng \u0111\u1ea3m b\u1ea3o b\u1ea3o m\u1eadt. Trong khi \u0111\u00f3, Switch kh\u1eafc ph\u1ee5c t\u1ea5t c\u1ea3 nh\u1eefng h\u1ea1n ch\u1ebf n\u00e0y m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Switch-co-can-cau-hinh-khong\"><\/span>Switch c\u00f3 c\u1ea7n c\u1ea5u h\u00ecnh kh\u00f4ng?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><strong>Kh\u00f4ng ph\u1ea3i l\u00fac n\u00e0o c\u0169ng c\u1ea7n.<\/strong><\/p>\n<ul>\n<li>V\u1edbi <strong>Unmanaged Switch<\/strong> (Switch kh\u00f4ng qu\u1ea3n l\u00fd), b\u1ea1n ch\u1ec9 c\u1ea7n c\u1eafm v\u00e0o l\u00e0 d\u00f9ng \u2013 <strong>plug &amp; play<\/strong>.<\/li>\n<li>V\u1edbi <strong>Managed Switch<\/strong>, b\u1ea1n c\u00f3 th\u1ec3 c\u1ea5u h\u00ecnh c\u00e1c t\u00ednh n\u0103ng n\u00e2ng cao nh\u01b0 VLAN, QoS, STP n\u1ebfu c\u1ea7n.<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"Co-the-ket-noi-Switch-voi-Hub-khong\"><\/span>C\u00f3 th\u1ec3 k\u1ebft n\u1ed1i Switch v\u1edbi Hub kh\u00f4ng?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>C\u00f3 th\u1ec3, nh\u01b0ng kh\u00f4ng n\u00ean. Vi\u1ec7c k\u1ebft n\u1ed1i nh\u01b0 v\u1eady s\u1ebd gi\u1ea3m hi\u1ec7u su\u1ea5t m\u1ea1ng v\u00e0 k\u00e9o theo c\u00e1c h\u1ea1n ch\u1ebf c\u1ee7a Hub. N\u1ebfu c\u00f3 th\u1ec3, h\u00e3y thay Hub ho\u00e0n to\u00e0n b\u1eb1ng Switch.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Switch-co-the-dung-trong-mang-gia-dinh-khong\"><\/span>Switch c\u00f3 th\u1ec3 d\u00f9ng trong m\u1ea1ng gia \u0111\u00ecnh kh\u00f4ng?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Ho\u00e0n to\u00e0n \u0111\u01b0\u1ee3c. Nhi\u1ec1u ng\u01b0\u1eddi d\u00f9ng \u0111ang s\u1eed d\u1ee5ng Switch 5 ho\u1eb7c 8 c\u1ed5ng \u0111\u1ec3 m\u1edf r\u1ed9ng s\u1ed1 thi\u1ebft b\u1ecb k\u1ebft n\u1ed1i c\u00f3 d\u00e2y cho smart TV, NAS, PC, console&#8230;<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Switch-Layer-2-va-Layer-3-khac-nhau-nhu-the-nao\"><\/span>Switch Layer 2 v\u00e0 Layer 3 kh\u00e1c nhau nh\u01b0 th\u1ebf n\u00e0o?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Switch <strong>Layer 2<\/strong> chuy\u1ec3n d\u1eef li\u1ec7u d\u1ef1a v\u00e0o \u0111\u1ecba ch\u1ec9 MAC (c\u1ea5p LAN).<\/p>\n<p>Switch <strong>Layer 3<\/strong> c\u00f3 th\u1ec3 \u0111\u1ecbnh tuy\u1ebfn nh\u01b0 router, ho\u1ea1t \u0111\u1ed9ng d\u1ef1a v\u00e0o \u0111\u1ecba ch\u1ec9 IP, d\u00f9ng cho m\u1ea1ng l\u1edbn ho\u1eb7c doanh nghi\u1ec7p c\u1ea7n chia VLAN n\u00e2ng cao.<\/p>\n<p>Qua b\u00e0i so s\u00e1nh chi ti\u1ebft s\u1ef1 kh\u00e1c bi\u1ec7t ch\u00ednh gi\u1eefa Hub v\u00e0 Switch, ch\u00fang ta c\u00f3 th\u1ec3 th\u1ea5y r\u00f5 r\u1eb1ng <strong>Switch<\/strong> v\u01b0\u1ee3t tr\u1ed9i h\u01a1n <strong>Hub<\/strong> v\u1ec1 m\u1ecdi m\u1eb7t quan tr\u1ecdng, bao g\u1ed3m hi\u1ec7u su\u1ea5t, b\u0103ng th\u00f4ng, b\u1ea3o m\u1eadt v\u00e0 t\u00ednh n\u0103ng. M\u1eb7c d\u00f9 Hub t\u1eebng l\u00e0 m\u1ed9t gi\u1ea3i ph\u00e1p k\u1ebft n\u1ed1i m\u1ea1ng c\u01a1 b\u1ea3n trong qu\u00e1 kh\u1ee9, c\u00f4ng ngh\u1ec7 c\u1ee7a n\u00f3 \u0111\u00e3 tr\u1edf n\u00ean l\u1ed7i th\u1eddi v\u00e0 kh\u00f4ng c\u00f2n ph\u00f9 h\u1ee3p v\u1edbi y\u00eau c\u1ea7u c\u1ee7a c\u00e1c h\u1ec7 th\u1ed1ng m\u1ea1ng hi\u1ec7n \u0111\u1ea1i.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Khi x\u00e2y d\u1ef1ng ho\u1eb7c n\u00e2ng c\u1ea5p h\u1ec7 th\u1ed1ng m\u1ea1ng, nhi\u1ec1u ng\u01b0\u1eddi \u0111\u1ec1u g\u1eb7p chung m\u1ed9t c\u00e2u h\u1ecfi: \u201cHub v\u00e0 Switch kh\u00e1c nhau th\u1ebf n\u00e0o? N\u00ean ch\u1ecdn thi\u1ebft b\u1ecb n\u00e0o? B\u00e0i vi\u1ebft n\u00e0y c\u1ee7a InterData s\u1ebd gi\u00fap b\u1ea1n n\u1eafm r\u00f5 so s\u00e1nh gi\u1eefa hub v\u00e0 switch kh\u00e1c g\u00ec nhau v\u00e0 c\u00e1ch \u0111\u1ec3 l\u1ef1a ch\u1ecdn gi\u1eefa 2<\/p>\n","protected":false},"author":11,"featured_media":31878,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[151],"tags":[],"class_list":["post-31873","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-mang"],"_links":{"self":[{"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/posts\/31873","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/users\/11"}],"replies":[{"embeddable":true,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/comments?post=31873"}],"version-history":[{"count":11,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/posts\/31873\/revisions"}],"predecessor-version":[{"id":34111,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/posts\/31873\/revisions\/34111"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/media\/31878"}],"wp:attachment":[{"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/media?parent=31873"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/categories?post=31873"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/tags?post=31873"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}