{"id":808,"date":"2023-03-24T02:16:18","date_gmt":"2023-03-24T02:16:18","guid":{"rendered":"https:\/\/vtechsolutions.vn\/blog\/?p=808"},"modified":"2023-10-25T02:51:52","modified_gmt":"2023-10-25T02:51:52","slug":"thiet-bi-mang-bao-gom-nhung-gi","status":"publish","type":"post","link":"https:\/\/vtechsolutions.vn\/blog\/thiet-bi-mang-bao-gom-nhung-gi\/","title":{"rendered":"Thi\u1ebft b\u1ecb m\u1ea1ng trong h\u1ec7 th\u1ed1ng m\u1ea1ng g\u1ed3m nh\u1eefng g\u00ec? Vai tr\u00f2, ch\u1ee9c n\u0103ng t\u1eebng thi\u1ebft b\u1ecb"},"content":{"rendered":"<p><a href=\"https:\/\/vtechsolutions.vn\/blog\/thiet-bi-mang-bao-gom-nhung-gi\/\">Thi\u1ebft b\u1ecb m\u1ea1ng <\/a>m\u1ed9t danh t\u1eeb chung d\u01b0\u1eddng nh\u01b0 \u0111\u00e3 qu\u00e1 quen thu\u1ed9c. Tuy nhi\u00ean, li\u1ec7u b\u1ea1n c\u00f3 bi\u1ebft ch\u00fang bao g\u1ed3m nh\u1eefng th\u00e0nh ph\u1ea7n n\u00e0o v\u00e0 ch\u1ee9c n\u0103ng ra sao hay kh\u00f4ng? Trong b\u00e0i vi\u1ebft n\u00e0y h\u00e3y c\u00f9ng v\u1edbi VTech \u0111i t\u00ecm hi\u1ec3u c\u1ee5 th\u1ec3 t\u1eebng thi\u1ebft b\u1ecb v\u00e0 nh\u1eefng \u0111\u1eb7c \u0111i\u1ec3m, ch\u1ee9c n\u0103ng c\u1ee7a n\u00f3 nh\u00e9!<\/p>\n<div id=\"toc_container\" class=\"toc_light_blue no_bullets\"><p class=\"toc_title\">T&oacute;m t\u1eaft n\u1ed9i dung<\/p><ul class=\"toc_list\"><li><a href=\"#1_Thiet_bi_mang_la_gi\">1\/ Thi\u1ebft b\u1ecb m\u1ea1ng l\u00e0 g\u00ec?<\/a><\/li><li><a href=\"#2_Vai_tro_cua_thiet_bi_mang_trong_doanh_nghiep\">2\/ Vai tr\u00f2 c\u1ee7a thi\u1ebft b\u1ecb m\u1ea1ng trong doanh nghi\u1ec7p<\/a><\/li><li><a href=\"#3_Cac_thiet_bi_mang_co_ban_bao_gom_nhung_gi_Chuc_nang_cua_tung_thiet_bi_mang\">3\/ C\u00e1c thi\u1ebft b\u1ecb m\u1ea1ng c\u01a1 b\u1ea3n bao g\u1ed3m nh\u1eefng g\u00ec? Ch\u1ee9c n\u0103ng c\u1ee7a t\u1eebng thi\u1ebft b\u1ecb m\u1ea1ng<\/a><ul><li><a href=\"#31_Tuong_lua_Firewall\">3.1\/ T\u01b0\u1eddng l\u1eeda \u2013 Firewall<\/a><\/li><li><a href=\"#32_Bo_tap_trung_8211_Hub\">3.2\/ B\u1ed9 t\u1eadp trung &#8211; Hub<\/a><\/li><li><a href=\"#33_Cau_8211_Bridge\">3.3\/ C\u1ea7u &#8211; Bridge<\/a><\/li><li><a href=\"#34_Chuyen_mach_8211_Switch\">3.4\/ Chuy\u1ec3n m\u1ea1ch &#8211; Switch<\/a><\/li><li><a href=\"#35_Bo_lap_tin_hieu_8211_Repeater\">3.5\/ B\u1ed9 l\u1eb7p t\u00edn hi\u1ec7u &#8211; Repeater<\/a><\/li><li><a href=\"#36_Bo_dinh_tuyen_8211_Router\">3.6\/ B\u1ed9 \u0111\u1ecbnh tuy\u1ebfn &#8211; Router<\/a><\/li><li><a href=\"#37_Cong_ghep_noi_8211_Gateway\">3.7\/ C\u1ed5ng gh\u00e9p n\u1ed1i &#8211; Gateway<\/a><\/li><li><a href=\"#38_Thiet_bi_mo_rong_vung_phu_song_wifi_Access_Point\">3.8\/ Thi\u1ebft b\u1ecb m\u1edf r\u1ed9ng v\u00f9ng ph\u1ee7 s\u00f3ng wifi \u2013 Access Point<\/a><\/li><li><a href=\"#39_Thiet_bi_ket_noi_mang_8211_Modem\">3.9\/ Thi\u1ebft b\u1ecb k\u1ebft n\u1ed1i m\u1ea1ng &#8211; Modem<\/a><\/li><\/ul><\/li><\/ul><\/div>\n<h2><span id=\"1_Thiet_bi_mang_la_gi\">1\/ Thi\u1ebft b\u1ecb m\u1ea1ng l\u00e0 g\u00ec?<\/span><\/h2>\n<p>Thi\u1ebft b\u1ecb m\u1ea1ng l\u00e0 g\u00ec? T\u1ea1i sao c\u00e1c doanh nghi\u1ec7p l\u1ea1i ph\u1ea3i c\u1ea7n \u0111\u1ebfn thi\u1ebft b\u1ecb m\u1ea1ng hay n\u00f3i c\u00e1ch kh\u00e1c <strong>vai tr\u00f2 c\u1ee7a c\u00e1c thi\u1ebft b\u1ecb m\u1ea1ng<\/strong> nh\u01b0 th\u1ebf n\u00e0o? V\u1ec1 c\u1ed1t l\u00f5i, c\u00e1c thi\u1ebft b\u1ecb m\u1ea1ng l\u00e0 thi\u1ebft b\u1ecb li\u00ean l\u1ea1c. Ch\u00fang l\u00e0 nh\u1eefng th\u00e0nh ph\u1ea7n c\u1ea7n thi\u1ebft \u0111\u1ec3 giao ti\u1ebfp v\u00e0 t\u01b0\u01a1ng t\u00e1c gi\u1eefa c\u00e1c ph\u1ea7n c\u1ee9ng tr\u00ean m\u1ea1ng m\u00e1y t\u00ednh. Ph\u1ea7n c\u1ee9ng n\u00e0y c\u00f3 th\u1ec3 l\u00e0 c\u00e1c thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed nh\u01b0 m\u00e1y fax, m\u00e1y t\u00ednh, m\u00e1y in v\u00e0 c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng CNTT kh\u00e1c.<\/p>\n<figure id=\"attachment_786\" aria-describedby=\"caption-attachment-786\" style=\"width: 800px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-786\" src=\"https:\/\/vtechsolutions.vn\/blog\/wp-content\/uploads\/2023\/03\/thiet-bi-zyxel-1024x711.jpg\" alt=\"thi\u1ebft b\u1ecb m\u1ea1ng zyxel\" width=\"800\" height=\"556\" srcset=\"https:\/\/vtechsolutions.vn\/blog\/wp-content\/uploads\/2023\/03\/thiet-bi-zyxel-1024x711.jpg 1024w, https:\/\/vtechsolutions.vn\/blog\/wp-content\/uploads\/2023\/03\/thiet-bi-zyxel-300x208.jpg 300w, https:\/\/vtechsolutions.vn\/blog\/wp-content\/uploads\/2023\/03\/thiet-bi-zyxel-768x533.jpg 768w, https:\/\/vtechsolutions.vn\/blog\/wp-content\/uploads\/2023\/03\/thiet-bi-zyxel.jpg 1440w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-786\" class=\"wp-caption-text\">Thi\u1ebft b\u1ecb m\u1ea1ng l\u00e0 g\u00ec?<\/figcaption><\/figure>\n<p>M\u1ee5c \u0111\u00edch ch\u00ednh c\u1ee7a c\u00e1c thi\u1ebft b\u1ecb m\u1ea1ng l\u00e0 truy\u1ec1n v\u00e0 nh\u1eadn d\u1eef li\u1ec7u nhanh ch\u00f3ng v\u00e0 an to\u00e0n. &#8220;Thi\u1ebft b\u1ecb m\u1ea1ng&#8221; l\u00e0 m\u1ed9t thu\u1eadt ng\u1eef r\u1ed9ng bao g\u1ed3m nhi\u1ec1u lo\u1ea1i thi\u1ebft b\u1ecb kh\u00e1c nhau nh\u01b0: B\u1ed9 chuy\u1ec3n m\u1ea1ch Switch, B\u1ed9 \u0111\u1ecbnh tuy\u1ebfn Router, Thi\u1ebft b\u1ecb ph\u00e1t wifi &#8211; Access Point, Hub, Modem, Repeater, USB wifi,&#8230;<\/p>\n<p>N\u00f3i m\u1ed9t c\u00e1ch \u0111\u01a1n gi\u1ea3n, thi\u1ebft b\u1ecb m\u1ea1ng l\u00e0 m\u1ed9t thi\u1ebft b\u1ecb v\u1eadt l\u00fd \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 k\u1ebft n\u1ed1i c\u00e1c thi\u1ebft b\u1ecb v\u1eadt l\u00fd kh\u00e1c tr\u00ean m\u1ea1ng. Trong m\u1ed9t s\u1ed1 tr\u01b0\u1eddng h\u1ee3p, vai tr\u00f2 c\u1ee7a ch\u00fang ch\u1ec9 \u0111\u01a1n gi\u1ea3n l\u00e0 chuy\u1ec3n ti\u1ebfp c\u00e1c g\u00f3i th\u00f4ng tin \u0111\u1ebfn \u0111\u00edch. Trong c\u00e1c tr\u01b0\u1eddng h\u1ee3p kh\u00e1c, n\u00f3 c\u00f3 th\u1ec3 \u0111\u00f3ng vai tr\u00f2 l\u00e0 ng\u01b0\u1eddi d\u1ecbch ho\u1eb7c ch\u1eb7n l\u01b0u l\u01b0\u1ee3ng truy c\u1eadp m\u1ea1ng \u0111\u00e1ng ng\u1edd.<\/p>\n<h2><span id=\"2_Vai_tro_cua_thiet_bi_mang_trong_doanh_nghiep\">2\/ Vai tr\u00f2 c\u1ee7a thi\u1ebft b\u1ecb m\u1ea1ng trong doanh nghi\u1ec7p<\/span><\/h2>\n<figure id=\"attachment_698\" aria-describedby=\"caption-attachment-698\" style=\"width: 955px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-698\" src=\"https:\/\/vtechsolutions.vn\/blog\/wp-content\/uploads\/2023\/03\/so-do-he-thong-mang-co-chuyen-mach-switch-poe.jpg\" alt=\"S\u01a1 \u0111\u1ed3 h\u1ec7 th\u1ed1ng m\u1ea1ng c\u00f3 chuy\u1ec3n m\u1ea1ch Switch POE\" width=\"955\" height=\"826\" srcset=\"https:\/\/vtechsolutions.vn\/blog\/wp-content\/uploads\/2023\/03\/so-do-he-thong-mang-co-chuyen-mach-switch-poe.jpg 955w, https:\/\/vtechsolutions.vn\/blog\/wp-content\/uploads\/2023\/03\/so-do-he-thong-mang-co-chuyen-mach-switch-poe-300x259.jpg 300w, https:\/\/vtechsolutions.vn\/blog\/wp-content\/uploads\/2023\/03\/so-do-he-thong-mang-co-chuyen-mach-switch-poe-768x664.jpg 768w\" sizes=\"auto, (max-width: 955px) 100vw, 955px\" \/><figcaption id=\"caption-attachment-698\" class=\"wp-caption-text\">Vai tr\u00f2 c\u1ee7a thi\u1ebft b\u1ecb m\u1ea1ng trong doanh nghi\u1ec7p<\/figcaption><\/figure>\n<p>Khi c\u00f3 m\u1ed9t s\u1ed1 l\u01b0\u1ee3ng l\u1edbn thi\u1ebft b\u1ecb trong m\u1ed9t m\u1ea1ng, s\u1ebd c\u00f3 qu\u00e1 nhi\u1ec1u g\u00f3i d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c truy\u1ec1n qua c\u00f9ng m\u1ed9t \u0111\u01b0\u1eddng d\u1eabn m\u1ea1ng. \u0110i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn t\u1eafc ngh\u1ebdn v\u00e0 suy gi\u1ea3m hi\u1ec7u su\u1ea5t.<\/p>\n<p>L\u00fac n\u00e0y c\u00e1c thi\u1ebft b\u1ecb m\u1ea1ng s\u1ebd ph\u00e1t huy vai tr\u00f2 c\u1ee7a n\u00f3, cho ph\u00e9p giao ti\u1ebfp th\u00f4ng su\u1ed1t gi\u1eefa c\u00e1c ph\u1ea7n c\u1ee9ng kh\u00e1c nhau \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i v\u1edbi m\u1ea1ng. Vi\u1ec7c b\u1ed5 sung m\u1ed9t thi\u1ebft b\u1ecb m\u1ea1ng gi\u00fap chia s\u1ebb t\u00e0i nguy\u00ean m\u1ea1ng mi\u1ec5n ph\u00ed gi\u1eefa c\u00e1c h\u1ec7 th\u1ed1ng kh\u00e1c nhau.<\/p>\n<p>Trong khi c\u00e1c thi\u1ebft b\u1ecb m\u1ea1ng m\u00e1y t\u00ednh nh\u01b0 Hub g\u1eedi d\u1eef li\u1ec7u m\u1ea1ng \u0111\u1ebfn t\u1ea5t c\u1ea3 c\u00e1c thi\u1ebft b\u1ecb \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i, th\u00ec c\u00e1c thi\u1ebft b\u1ecb m\u1ea1ng th\u00f4ng minh nh\u01b0 b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn kh\u00f4ng ch\u1ec9 c\u00f3 h\u1ec7 th\u1ed1ng ngu\u1ed3n v\u00e0 \u0111\u00edch c\u1ed1 \u0111\u1ecbnh m\u00e0 ch\u00fang c\u00f2n ch\u1ecdn tuy\u1ebfn hi\u1ec7u qu\u1ea3 nh\u1ea5t \u0111\u1ec3 truy\u1ec1n d\u1eef li\u1ec7u. Gi\u00fap doanh nghi\u1ec7p t\u1ed1i \u01b0u hi\u1ec7u qu\u1ea3 l\u00e0m vi\u1ec7c, n\u00e2ng cao n\u0103ng su\u1ea5t, ti\u1ebft ki\u1ec7m th\u1eddi gian v\u00e0 c\u00f4ng s\u1ee9c\u2026<\/p>\n<h2><span id=\"3_Cac_thiet_bi_mang_co_ban_bao_gom_nhung_gi_Chuc_nang_cua_tung_thiet_bi_mang\">3\/ C\u00e1c thi\u1ebft b\u1ecb m\u1ea1ng c\u01a1 b\u1ea3n bao g\u1ed3m nh\u1eefng g\u00ec? Ch\u1ee9c n\u0103ng c\u1ee7a t\u1eebng thi\u1ebft b\u1ecb m\u1ea1ng<\/span><\/h2>\n<p>M\u1ed9t <strong>thi\u1ebft b\u1ecb m\u1ea1ng g\u1ed3m nh\u1eefng g\u00ec<\/strong> v\u00e0 ch\u1ee9c n\u0103ng c\u1ee7a n\u00f3 nh\u01b0 th\u1ebf n\u00e0o? D\u01b0\u1edbi \u0111\u00e2y l\u00e0 <strong>c\u00e1c thi\u1ebft b\u1ecb m\u1ea1ng v\u00e0 ch\u1ee9c n\u0103ng c\u01a1 b\u1ea3n<\/strong> c\u1ee7a t\u1eebng lo\u1ea1i:<\/p>\n<h3><span id=\"31_Tuong_lua_Firewall\">3.1\/ T\u01b0\u1eddng l\u1eeda \u2013 Firewall<\/span><\/h3>\n<figure id=\"attachment_838\" aria-describedby=\"caption-attachment-838\" style=\"width: 800px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-838\" src=\"https:\/\/vtechsolutions.vn\/blog\/wp-content\/uploads\/2023\/03\/tuong-lua-Firewall-1024x535.jpg\" alt=\"T\u01b0\u1eddng l\u1eeda \u2013 Firewall\" width=\"800\" height=\"418\" srcset=\"https:\/\/vtechsolutions.vn\/blog\/wp-content\/uploads\/2023\/03\/tuong-lua-Firewall-1024x535.jpg 1024w, https:\/\/vtechsolutions.vn\/blog\/wp-content\/uploads\/2023\/03\/tuong-lua-Firewall-300x157.jpg 300w, https:\/\/vtechsolutions.vn\/blog\/wp-content\/uploads\/2023\/03\/tuong-lua-Firewall-768x401.jpg 768w, https:\/\/vtechsolutions.vn\/blog\/wp-content\/uploads\/2023\/03\/tuong-lua-Firewall.jpg 1115w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-838\" class=\"wp-caption-text\">T\u01b0\u1eddng l\u1eeda \u2013 Firewall<\/figcaption><\/figure>\n<p>T\u01b0\u1eddng l\u1eeda (t\u00ean ti\u1ebfng Anh l\u00e0 FireWall) l\u00e0 m\u1ed9t thu\u1eadt ng\u1eef d\u00f9ng trong chuy\u00ean ng\u00e0nh m\u1ea1ng m\u00e1y t\u00ednh, c\u00f3 ch\u1ee9c n\u0103ng ng\u0103n ch\u1eb7n truy c\u1eadp tr\u00e1i ph\u00e9p v\u00e0o m\u1ea1ng th\u00f4ng qua ph\u1ea7n m\u1ec1m ho\u1eb7c ch\u01b0\u01a1ng tr\u00ecnh c\u01a1 s\u1edf.<\/p>\n<p>H\u00e3y coi t\u01b0\u1eddng l\u1eeda gi\u1ed1ng nh\u01b0 m\u1ed9t ng\u01b0\u1eddi g\u00e1c c\u1ed5ng t\u1ea1i \u0111i\u1ec3m v\u00e0o m\u00e1y t\u00ednh c\u1ee7a b\u1ea1n, n\u01a1i ch\u1ec9 cho ph\u00e9p c\u00e1c ngu\u1ed3n ho\u1eb7c \u0111\u1ecba ch\u1ec9 IP \u0111\u00e1ng tin c\u1eady v\u00e0o m\u1ea1ng c\u1ee7a b\u1ea1n.<\/p>\n<p>T\u01b0\u1eddng l\u1eeda ch\u1ec9 ch\u00e0o \u0111\u00f3n nh\u1eefng l\u01b0u l\u01b0\u1ee3ng truy c\u1eadp \u0111\u1ebfn \u0111\u00e3 \u0111\u01b0\u1ee3c \u0111\u1ecbnh c\u1ea5u h\u00ecnh \u0111\u1ec3 ch\u1ea5p nh\u1eadn. N\u00f3 ph\u00e2n bi\u1ec7t gi\u1eefa l\u01b0u l\u01b0\u1ee3ng t\u1ed1t v\u00e0 \u0111\u1ed9c h\u1ea1i, \u0111\u1ed3ng th\u1eddi cho ph\u00e9p ho\u1eb7c ch\u1eb7n c\u00e1c g\u00f3i d\u1eef li\u1ec7u truy c\u1eadp v\u00e0o v\u00e0 ra c\u1ee5 th\u1ec3 theo c\u00e1c quy t\u1eafc b\u1ea3o m\u1eadt \u0111\u01b0\u1ee3c thi\u1ebft l\u1eadp tr\u01b0\u1edbc.<\/p>\n<p>T\u01b0\u1eddng l\u1eeda \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e0i \u0111\u1eb7t doanh nghi\u1ec7p v\u00e0 c\u00e1 nh\u00e2n. Ch\u00fang l\u00e0 m\u1ed9t th\u00e0nh ph\u1ea7n quan tr\u1ecdng c\u1ee7a an ninh m\u1ea1ng. H\u1ea7u h\u1ebft c\u00e1c h\u1ec7 \u0111i\u1ec1u h\u00e0nh \u0111\u1ec1u c\u00f3 t\u01b0\u1eddng l\u1eeda t\u00edch h\u1ee3p c\u01a1 b\u1ea3n. Tuy nhi\u00ean, s\u1eed d\u1ee5ng \u1ee9ng d\u1ee5ng t\u01b0\u1eddng l\u1eeda c\u1ee7a b\u00ean th\u1ee9 ba s\u1ebd gi\u00fap b\u1ea1n b\u1ea3o v\u1ec7 t\u1ed1t h\u01a1n.<\/p>\n<h3><span id=\"32_Bo_tap_trung_8211_Hub\">3.2\/ B\u1ed9 t\u1eadp trung &#8211; Hub<\/span><\/h3>\n<p>Hub l\u00e0 m\u1ed9t thi\u1ebft b\u1ecb m\u1ea1ng c\u00f3 d\u00e2y ho\u1ea1t \u0111\u1ed9ng \u1edf t\u1ea7ng v\u1eadt l\u00fd t\u1ee9c l\u00e0 t\u1ea7ng 1 c\u1ee7a m\u00f4 h\u00ecnh OSI, kh\u00f4ng gi\u1ed1ng nh\u01b0 c\u00e1c switch ho\u1ea1t \u0111\u1ed9ng \u1edf t\u1ea7ng li\u00ean k\u1ebft d\u1eef li\u1ec7u. Hub \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i \u0111\u1ec3 k\u1ebft n\u1ed1i m\u1ea1ng LAN. Ch\u00fang c\u00f3 nhi\u1ec1u c\u1ed5ng kh\u00e1c nhau, v\u00ec v\u1eady khi m\u1ed9t g\u00f3i \u0111\u1ebfn m\u1ed9t c\u1ed5ng, n\u00f3 s\u1ebd \u0111\u01b0\u1ee3c sao ch\u00e9p sang nhi\u1ec1u c\u1ed5ng kh\u00e1c. Hub ho\u1ea1t \u0111\u1ed9ng nh\u01b0 m\u1ed9t \u0111i\u1ec3m k\u1ebft n\u1ed1i chung cho c\u00e1c thi\u1ebft b\u1ecb trong m\u1ed9t h\u1ec7 th\u1ed1ng m\u1ea1ng.<\/p>\n<p>Kh\u00e1c v\u1edbi switch, hub kh\u00f4ng th\u1ec3 l\u1ecdc d\u1eef li\u1ec7u, t\u1ee9c l\u00e0 n\u00f3 kh\u00f4ng x\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1ee3c \u0111\u00edch \u0111\u1ebfn c\u1ee7a g\u00f3i tin n\u00ean n\u00f3 s\u1ebd qu\u1ea3ng b\u00e1 ho\u1eb7c g\u1eedi tin nh\u1eafn \u0111\u1ebfn t\u1eebng c\u1ed5ng. Hub kh\u00f4ng c\u00f3 b\u1ea5t k\u1ef3 b\u1ea3ng \u0111\u1ecbnh tuy\u1ebfn n\u00e0o \u0111\u1ec3 l\u01b0u tr\u1eef d\u1eef li\u1ec7u c\u1ee7a c\u00e1c c\u1ed5ng v\u00e0 \u00e1nh x\u1ea1 \u0111\u1ecba ch\u1ec9 \u0111\u00edch. B\u1ea3ng \u0111\u1ecbnh tuy\u1ebfn \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 g\u1eedi\/ph\u00e1t th\u00f4ng tin tr\u00ean t\u1ea5t c\u1ea3 c\u00e1c c\u1ed5ng.<\/p>\n<p>C\u00e1c t\u00ednh n\u0103ng quan tr\u1ecdng c\u1ee7a Hub:<\/p>\n<ul>\n<li>Ho\u1ea1t \u0111\u1ed9ng v\u1edbi b\u0103ng th\u00f4ng ph\u00e1t s\u00f3ng v\u00e0 chia s\u1ebb.<\/li>\n<li>C\u00f3 1 mi\u1ec1n qu\u1ea3ng b\u00e1 v\u00e0 1 mi\u1ec1n xung \u0111\u1ed9t<\/li>\n<li>Kh\u00f4ng th\u1ec3 t\u1ea1o m\u1ea1ng LAN \u1ea3o b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng Hub<\/li>\n<li>Cung c\u1ea5p h\u1ed7 tr\u1ee3 cho ch\u1ebf \u0111\u1ed9 truy\u1ec1n b\u00e1n song c\u00f4ng<\/li>\n<li>M\u1ed9t hub ch\u1ec9 c\u00f3 m\u1ed9t mi\u1ec1n qu\u1ea3ng b\u00e1 duy nh\u1ea5t<\/li>\n<li>Kh\u00f4ng h\u1ed7 tr\u1ee3 giao th\u1ee9c c\u00e2y bao tr\u00f9m<\/li>\n<li>Xung \u0111\u1ed9t g\u00f3i x\u1ea3y ra ch\u1ee7 y\u1ebfu b\u00ean trong m\u1ed9t hub<\/li>\n<\/ul>\n<h3><span id=\"33_Cau_8211_Bridge\">3.3\/ C\u1ea7u &#8211; Bridge<\/span><\/h3>\n<p><strong>Thi\u1ebft b\u1ecb m\u1ea1ng bao g\u1ed3m nh\u1eefng g\u00ec<\/strong>, ti\u1ebfp theo \u0111\u00f3 ch\u00ednh l\u00e0 Bridge. \u0110\u00e2y l\u00e0 <strong>thi\u1ebft b\u1ecb m\u1ea1ng c\u00f3 d\u00e2y<\/strong> \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 k\u1ebft n\u1ed1i nhi\u1ec1u m\u1ea1ng LAN l\u1ea1i v\u1edbi nhau th\u00e0nh M\u1ea1ng c\u1ee5c b\u1ed9 (LAN) l\u1edbn h\u01a1n.<\/p>\n<p>C\u00e1c ch\u1ee9c n\u0103ng ch\u00ednh c\u1ee7a Bridge \u0111\u00f3 ch\u00ednh l\u00e0:<\/p>\n<ul>\n<li>C\u1ea7u \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 t\u0103ng dung l\u01b0\u1ee3ng m\u1ea1ng v\u00ec ch\u00fang c\u00f3 th\u1ec3 t\u00edch h\u1ee3p nhi\u1ec1u m\u1ea1ng LAN v\u1edbi nhau.<\/li>\n<li>Khi nh\u1eadn \u0111\u01b0\u1ee3c khung d\u1eef li\u1ec7u, c\u01a1 s\u1edf d\u1eef li\u1ec7u s\u1eed d\u1ee5ng Bridge \u0111\u1ec3 quy\u1ebft \u0111\u1ecbnh ch\u1ea5p nh\u1eadn hay t\u1eeb ch\u1ed1i d\u1eef li\u1ec7u.<\/li>\n<li>Trong m\u00f4 h\u00ecnh OSI, n\u00f3 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 truy\u1ec1n d\u1eef li\u1ec7u t\u1edbi nhi\u1ec1u n\u00fat c\u1ee7a m\u1ea1ng.<\/li>\n<li>\u0110\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 ph\u00e1t d\u1eef li\u1ec7u ngay c\u1ea3 khi \u0111\u1ecba ch\u1ec9 MAC ho\u1eb7c \u0111\u1ecba ch\u1ec9 \u0111\u00edch kh\u00f4ng kh\u1ea3 d\u1ee5ng.<\/li>\n<li>N\u00f3 chuy\u1ec3n ti\u1ebfp c\u00e1c g\u00f3i d\u1eef li\u1ec7u m\u1eb7c d\u00f9 c\u00e1c n\u00fat b\u1ecb l\u1ed7i.<\/li>\n<li>G\u00f3i d\u1eef li\u1ec7u c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c chuy\u1ec3n ti\u1ebfp ho\u1eb7c lo\u1ea1i b\u1ecf b\u1edfi c\u1ea7u khi \u0111\u1ecba ch\u1ec9 MAC kh\u1ea3 d\u1ee5ng.<\/li>\n<\/ul>\n<p><strong>&gt;&gt;&gt; <a href=\"https:\/\/vtechsolutions.vn\/danh-muc\/thiet-bi-mang-zyxel.html\">Tham kh\u1ea3o c\u00e1c thi\u1ebft b\u1ecb m\u1ea1ng Zyxel t\u1ea1i \u0111\u00e2y!<\/a><\/strong><\/p>\n<h3><span id=\"34_Chuyen_mach_8211_Switch\">3.4\/ Chuy\u1ec3n m\u1ea1ch &#8211; Switch<\/span><\/h3>\n<figure id=\"attachment_792\" aria-describedby=\"caption-attachment-792\" style=\"width: 800px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-792\" src=\"https:\/\/vtechsolutions.vn\/blog\/wp-content\/uploads\/2023\/03\/bo-chuyen-mach-switch-la-gi.jpg\" alt=\"b\u1ed9 chuy\u1ec3n m\u1ea1ch switch l\u00e0 g\u00ec\" width=\"800\" height=\"455\" srcset=\"https:\/\/vtechsolutions.vn\/blog\/wp-content\/uploads\/2023\/03\/bo-chuyen-mach-switch-la-gi.jpg 974w, https:\/\/vtechsolutions.vn\/blog\/wp-content\/uploads\/2023\/03\/bo-chuyen-mach-switch-la-gi-300x171.jpg 300w, https:\/\/vtechsolutions.vn\/blog\/wp-content\/uploads\/2023\/03\/bo-chuyen-mach-switch-la-gi-768x437.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-792\" class=\"wp-caption-text\">Chuy\u1ec3n m\u1ea1ch &#8211; Switch<\/figcaption><\/figure>\n<p><a href=\"https:\/\/vtechsolutions.vn\/blog\/bo-chuyen-mach-switch-la-gi\/\">Switch l\u00e0 thi\u1ebft b\u1ecb chuy\u1ec3n m\u1ea1ch<\/a> v\u1edbi m\u1ee5c \u0111\u00edch k\u1ebft n\u1ed1i c\u00e1c thi\u1ebft b\u1ecb trong m\u1ea1ng v\u1edbi nhau, cho ph\u00e9p ch\u00fang giao ti\u1ebfp b\u1eb1ng c\u00e1ch trao \u0111\u1ed5i c\u00e1c g\u00f3i d\u1eef li\u1ec7u. Switch c\u00f3 th\u1ec3 l\u00e0 thi\u1ebft b\u1ecb ph\u1ea7n c\u1ee9ng qu\u1ea3n l\u00fd m\u1ea1ng v\u1eadt l\u00fd ho\u1eb7c thi\u1ebft b\u1ecb \u1ea3o d\u1ef1a tr\u00ean ph\u1ea7n m\u1ec1m.<\/p>\n<p>\u0110\u1eb7c \u0111i\u1ec3m c\u1ee7a Switch:<\/p>\n<ul>\n<li>Switch ho\u1ea1t \u0111\u1ed9ng \u1edf l\u1edbp 2, t\u1ee9c l\u00e0 l\u1edbp li\u00ean k\u1ebft d\u1eef li\u1ec7u c\u1ee7a m\u00f4 h\u00ecnh OSI.<\/li>\n<li>N\u00f3 l\u00e0 m\u1ed9t thi\u1ebft b\u1ecb m\u1ea1ng th\u00f4ng minh c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c h\u00ecnh th\u00e0nh nh\u01b0 m\u1ed9t c\u1ea7u n\u1ed1i m\u1ea1ng nhi\u1ec1u c\u1ed5ng.<\/li>\n<li>N\u00f3 s\u1eed d\u1ee5ng \u0111\u1ecba ch\u1ec9 MAC \u0111\u1ec3 g\u1eedi c\u00e1c g\u00f3i d\u1eef li\u1ec7u \u0111\u1ebfn c\u00e1c c\u1ed5ng \u0111\u00edch \u0111\u00e3 ch\u1ecdn.<\/li>\n<li>N\u00f3 s\u1eed d\u1ee5ng k\u1ef9 thu\u1eadt chuy\u1ec3n m\u1ea1ch g\u00f3i \u0111\u1ec3 nh\u1eadn v\u00e0 chuy\u1ec3n ti\u1ebfp c\u00e1c g\u00f3i d\u1eef li\u1ec7u t\u1eeb ngu\u1ed3n \u0111\u1ebfn thi\u1ebft b\u1ecb \u0111\u00edch.<\/li>\n<li>N\u00f3 h\u1ed7 tr\u1ee3 truy\u1ec1n unicast, multicast v\u00e0 broadcast.<\/li>\n<li>Ch\u1ebf \u0111\u1ed9 truy\u1ec1n l\u00e0 song c\u00f4ng ho\u00e0n to\u00e0n, ngh\u0129a l\u00e0 giao ti\u1ebfp trong k\u00eanh x\u1ea3y ra theo c\u1ea3 hai h\u01b0\u1edbng c\u00f9ng m\u1ed9t l\u00fac.<\/li>\n<li>B\u1ed9 chuy\u1ec3n m\u1ea1ch c\u00f3 th\u1ec3 th\u1ef1c hi\u1ec7n m\u1ed9t s\u1ed1 ki\u1ec3m tra l\u1ed7i tr\u01b0\u1edbc khi chuy\u1ec3n ti\u1ebfp d\u1eef li\u1ec7u \u0111\u1ebfn c\u1ed5ng \u0111\u1ecbnh m\u1ec7nh.<\/li>\n<li>S\u1ed1 l\u01b0\u1ee3ng c\u1ed5ng t\u1eeb 24 &#8211; 48 c\u1ed5ng.<\/li>\n<\/ul>\n<h3><span id=\"35_Bo_lap_tin_hieu_8211_Repeater\">3.5\/ B\u1ed9 l\u1eb7p t\u00edn hi\u1ec7u &#8211; Repeater<\/span><\/h3>\n<figure id=\"attachment_840\" aria-describedby=\"caption-attachment-840\" style=\"width: 800px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-840\" src=\"https:\/\/vtechsolutions.vn\/blog\/wp-content\/uploads\/2023\/03\/bo-lap-tin-hieu-Repeater.jpg\" alt=\"B\u1ed9 l\u1eb7p t\u00edn hi\u1ec7u - Repeater\" width=\"800\" height=\"634\" srcset=\"https:\/\/vtechsolutions.vn\/blog\/wp-content\/uploads\/2023\/03\/bo-lap-tin-hieu-Repeater.jpg 650w, https:\/\/vtechsolutions.vn\/blog\/wp-content\/uploads\/2023\/03\/bo-lap-tin-hieu-Repeater-300x238.jpg 300w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-840\" class=\"wp-caption-text\">B\u1ed9 l\u1eb7p t\u00edn hi\u1ec7u &#8211; Repeater<\/figcaption><\/figure>\n<p><strong>Thi\u1ebft b\u1ecb c\u01a1 b\u1ea3n c\u1ee7a m\u1ea1ng c\u00f3 d\u00e2y l\u00e0 g\u00ec<\/strong> \u0111\u00f3 l\u00e0 Repeater. H\u1ea7u h\u1ebft m\u1ecdi ng\u01b0\u1eddi \u0111\u1ec1u bi\u1ebft r\u1eb1ng c\u01b0\u1eddng \u0111\u1ed9 t\u00edn hi\u1ec7u suy gi\u1ea3m khi truy\u1ec1n qua m\u1ea1ng. S\u1ef1 c\u1ed1 t\u1ef1 nhi\u00ean n\u00e0y c\u00f3 th\u1ec3 x\u1ea3y ra v\u1edbi b\u1ea5t k\u1ef3 lo\u1ea1i truy\u1ec1n d\u1eabn n\u00e0o, ch\u1eb3ng h\u1ea1n nh\u01b0 n\u0103ng l\u01b0\u1ee3ng \u0111i\u1ec7n ho\u1eb7c d\u1eef li\u1ec7u m\u1ea1ng. V\u00e0 c\u00f3 th\u1ec3 \u0111\u00f4i khi b\u1ea1n mu\u1ed1n m\u1edf r\u1ed9ng mi\u1ec1n \u0111\u1ecbnh tuy\u1ebfn c\u1ee7a m\u1ea1ng h\u01a1n n\u1eefa v\u00ec nhi\u1ec1u l\u00fd do, ch\u1eb3ng h\u1ea1n nh\u01b0 h\u1ed7 tr\u1ee3 m\u1ed9t m\u00e1y ch\u1ee7 m\u1edbi ho\u1eb7c c\u1ea3i thi\u1ec7n m\u1ee9c \u0111\u1ed9 d\u1ecbch v\u1ee5 trong m\u1ed9t mi\u1ec1n c\u1ea5u tr\u00fac li\u00ean k\u1ebft c\u1ee5 th\u1ec3. Sau \u0111\u00f3, \u0111\u1ec3 th\u1ef1c hi\u1ec7n \u0111i\u1ec1u n\u00e0y, m\u1ed9t b\u1ed9 l\u1eb7p t\u00edn hi\u1ec7u ph\u1ea3i \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng.<\/p>\n<p>V\u00ec v\u1eady, Repeater trong m\u1ea1ng m\u00e1y t\u00ednh l\u00e0 thi\u1ebft b\u1ecb m\u1ea1ng m\u1ea1nh m\u1ebd \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 t\u00e1i t\u1ea1o t\u00edn hi\u1ec7u khi ch\u00fang di chuy\u1ec3n tr\u00ean m\u1ed9t kho\u1ea3ng c\u00e1ch xa h\u01a1n, \u0111\u1ea3m b\u1ea3o c\u01b0\u1eddng \u0111\u1ed9 t\u00edn hi\u1ec7u kh\u00f4ng \u0111\u1ed5i. C\u00e1c thi\u1ebft b\u1ecb n\u00e0y th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c m\u1ea1ng \u0111\u1ec3 gi\u00fap c\u00e1c \u0111\u01b0\u1eddng m\u1ea1ng ti\u1ebfp c\u1eadn c\u00e1c \u0111\u00edch xa h\u01a1n v\u00e0 do \u0111\u00f3 Repeater c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 b\u1ed9 t\u0103ng c\u01b0\u1eddng t\u00edn hi\u1ec7u.<\/p>\n<p>\u01afu \u0111i\u1ec3m n\u1ed5i b\u1eadt nh\u1ea5t c\u1ee7a repeater l\u00e0 cho ph\u00e9p truy\u1ec1n d\u1eef li\u1ec7u \u0111i xa m\u00e0 v\u1eabn \u0111\u1ea3m b\u1ea3o ch\u1ea5t l\u01b0\u1ee3ng v\u00e0 b\u1ea3o m\u1eadt d\u1eef li\u1ec7u.<\/p>\n<h3><span id=\"36_Bo_dinh_tuyen_8211_Router\">3.6\/ B\u1ed9 \u0111\u1ecbnh tuy\u1ebfn &#8211; Router<\/span><\/h3>\n<figure id=\"attachment_841\" aria-describedby=\"caption-attachment-841\" style=\"width: 800px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-841\" src=\"https:\/\/vtechsolutions.vn\/blog\/wp-content\/uploads\/2023\/03\/bo-dinh-tuyen-Router.jpg\" alt=\"B\u1ed9 \u0111\u1ecbnh tuy\u1ebfn - Router\" width=\"800\" height=\"800\" srcset=\"https:\/\/vtechsolutions.vn\/blog\/wp-content\/uploads\/2023\/03\/bo-dinh-tuyen-Router.jpg 750w, https:\/\/vtechsolutions.vn\/blog\/wp-content\/uploads\/2023\/03\/bo-dinh-tuyen-Router-300x300.jpg 300w, https:\/\/vtechsolutions.vn\/blog\/wp-content\/uploads\/2023\/03\/bo-dinh-tuyen-Router-150x150.jpg 150w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-841\" class=\"wp-caption-text\">B\u1ed9 \u0111\u1ecbnh tuy\u1ebfn &#8211; Router<\/figcaption><\/figure>\n<p>C\u00e1c thi\u1ebft b\u1ecb c\u1ee7a m\u1ea1ng c\u00f3 d\u00e2y l\u00e0 g\u00ec, <a href=\"https:\/\/vtechsolutions.vn\/blog\/bo-dinh-tuyen-router-la-gi\/\">Router c\u0169ng l\u00e0 thi\u1ebft b\u1ecb quan tr\u1ecdng<\/a> c\u00f3 nhi\u1ec7m v\u1ee5 k\u1ebft n\u1ed1i hai ho\u1eb7c nhi\u1ec1u m\u1ea1ng ho\u1eb7c m\u1ea1ng con \u0111\u01b0\u1ee3c chuy\u1ec3n m\u1ea1ch g\u00f3i. \u0110\u00e2y l\u00e0 nh\u1eefng thi\u1ebft b\u1ecb m\u1ea1ng ho\u1ea1t \u0111\u1ed9ng \u1edf l\u1edbp 3 ho\u1eb7c l\u1edbp m\u1ea1ng c\u1ee7a m\u00f4 h\u00ecnh OSI.<\/p>\n<p>B\u1ed9 \u0111\u1ecbnh tuy\u1ebfn th\u1ef1c hi\u1ec7n hai ch\u1ee9c n\u0103ng ch\u00ednh:<\/p>\n<ul>\n<li><strong>Chuy\u1ec3n ti\u1ebfp:<\/strong> B\u1ed9 \u0111\u1ecbnh tuy\u1ebfn nh\u1eadn c\u00e1c g\u00f3i t\u1eeb c\u00e1c c\u1ed5ng \u0111\u1ea7u v\u00e0o c\u1ee7a n\u00f3, ki\u1ec3m tra ti\u00eau \u0111\u1ec1, th\u1ef1c hi\u1ec7n m\u1ed9t s\u1ed1 ch\u1ee9c n\u0103ng c\u01a1 b\u1ea3n nh\u01b0 t\u1ed5ng ki\u1ec3m tra, sau \u0111\u00f3 tra c\u1ee9u b\u1ea3ng \u0111\u1ecbnh tuy\u1ebfn nh\u1eb1m t\u00ecm c\u1ed5ng \u0111\u1ea7u ra th\u00edch h\u1ee3p r\u1ed3i k\u1ebft xu\u1ea5t c\u00e1c g\u00f3i v\u00e0 chuy\u1ec3n ti\u1ebfp c\u00e1c g\u00f3i \u0111\u1ebfn c\u1ed5ng \u0111\u1ea7u ra.<\/li>\n<li><strong>\u0110\u1ecbnh tuy\u1ebfn:<\/strong> \u0110\u1ecbnh tuy\u1ebfn l\u00e0 qu\u00e1 tr\u00ecnh b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn x\u00e1c \u0111\u1ecbnh \u0111\u00e2u l\u00e0 \u0111\u01b0\u1eddng d\u1eabn t\u1ed1t nh\u1ea5t \u0111\u1ec3 g\u00f3i \u0111\u1ebfn \u0111\u00edch, n\u00f3 duy tr\u00ec m\u1ed9t b\u1ea3ng \u0111\u1ecbnh tuy\u1ebfn \u0111\u01b0\u1ee3c t\u1ea1o b\u1eb1ng c\u00e1c thu\u1eadt to\u00e1n kh\u00e1c nhau.<\/li>\n<\/ul>\n<h3><span id=\"37_Cong_ghep_noi_8211_Gateway\">3.7\/ C\u1ed5ng gh\u00e9p n\u1ed1i &#8211; Gateway<\/span><\/h3>\n<p>C\u1ed5ng gh\u00e9p n\u1ed1i &#8211; Gateway l\u00e0 m\u1ed9t thi\u1ebft b\u1ecb k\u1ebft n\u1ed1i c\u00f3 th\u1ec3 k\u1ebft n\u1ed1i hai m\u1ea1ng s\u1eed d\u1ee5ng c\u00e1c giao th\u1ee9c truy\u1ec1n kh\u00e1c nhau. N\u00f3i m\u1ed9t c\u00e1ch \u0111\u01a1n gi\u1ea3n h\u01a1n, m\u1ed9t c\u1ed5ng gh\u00e9p n\u1ed1i l\u00e0 m\u1ed9t n\u00fat m\u1ea1ng \u0111\u00f3ng vai tr\u00f2 l\u00e0 \u0111i\u1ec3m v\u00e0o c\u1ee7a m\u1ed9t m\u1ea1ng kh\u00e1c.<\/p>\n<p>C\u1ed5ng gh\u00e9p n\u1ed1i ho\u1ea1t \u0111\u1ed9ng nh\u01b0 m\u1ed9t c\u1ed5ng th\u00f4ng tin gi\u1eefa hai \u1ee9ng d\u1ee5ng th\u00f4ng qua giao th\u1ee9c, cho ph\u00e9p ch\u00fang chia s\u1ebb d\u1eef li\u1ec7u tr\u00ean c\u00f9ng h\u1ec7 th\u1ed1ng ho\u1eb7c h\u1ec7 th\u1ed1ng kh\u00e1c. Do \u0111\u00f3, m\u1ed9t Gateway c\u0169ng l\u00e0 m\u1ed9t b\u1ed9 chuy\u1ec3n \u0111\u1ed5i giao th\u1ee9c c\u00f3 th\u1ec3 ho\u1ea1t \u0111\u1ed9ng \u1edf b\u1ea5t k\u1ef3 l\u1edbp m\u00f4 h\u00ecnh OSI n\u00e0o.<\/p>\n<p>Gateway trong m\u1ea1ng m\u00e1y t\u00ednh c\u00f3 r\u1ea5t nhi\u1ec1u t\u00ednh n\u0103ng kh\u00e1c nhau, \u0111i\u1ec3n h\u00ecnh nh\u01b0:<\/p>\n<ul>\n<li>Kh\u1ea3 n\u0103ng hi\u1ec3n th\u1ecb t\u1ed1t h\u01a1n: C\u00e1c c\u1ed5ng gh\u00e9p n\u1ed1i \u0111\u01b0\u1ee3c \u0111\u1eb7t t\u1ea1i c\u00e1c ranh gi\u1edbi m\u1ea1ng, cung c\u1ea5p kh\u1ea3 n\u0103ng hi\u1ec3n th\u1ecb v\u00f4 song \u0111\u1ed1i v\u1edbi l\u01b0u l\u01b0\u1ee3ng truy c\u1eadp \u0111i qua c\u00e1c ranh gi\u1edbi.<\/li>\n<li>Thu th\u1eadp th\u00f4ng tin: C\u1ed5ng gh\u00e9p n\u1ed1i thu th\u1eadp d\u1eef li\u1ec7u t\u1eeb c\u00e1c ph\u1ea7n kh\u00e1c c\u1ee7a m\u1ea1ng \u0111\u1ec3 h\u1ed7 tr\u1ee3 ch\u1ea9n \u0111o\u00e1n v\u00e0 kh\u1eafc ph\u1ee5c s\u1ef1 c\u1ed1.<\/li>\n<li>B\u1ea3o m\u1eadt t\u1ed1t h\u01a1n: V\u1ecb tr\u00ed c\u1ee7a c\u00e1c c\u1ed5ng t\u1ea1i ranh gi\u1edbi m\u1ea1ng cung c\u1ea5p cho ch\u00fang kh\u1ea3 n\u0103ng ki\u1ec3m so\u00e1t c\u1ea7n thi\u1ebft \u0111\u1ec3 b\u1ea3o m\u1eadt v\u00e0 \u0111\u00f3ng vai tr\u00f2 l\u00e0 \u0111\u1ecba \u0111i\u1ec3m quan tr\u1ecdng cho t\u01b0\u1eddng l\u1eeda v\u00e0 ph\u1ea7n m\u1ec1m b\u1ea3o m\u1eadt.<\/li>\n<li>Cung c\u1ea5p h\u1ed7 tr\u1ee3 \u0111a giao th\u1ee9c: C\u00e1c c\u1ed5ng th\u01b0\u1eddng \u0111\u01b0\u1ee3c x\u00e2y d\u1ef1ng \u0111\u1ec3 ch\u1ee9a nhi\u1ec1u giao th\u1ee9c kh\u00e1c nhau \u0111\u1ec3 gi\u00fap vi\u1ec7c truy\u1ec1n d\u1eef li\u1ec7u gi\u1eefa c\u00e1c m\u1ea1ng kh\u00e1c nhau s\u1eed d\u1ee5ng c\u00e1c giao th\u1ee9c m\u1ea1ng kh\u00e1c nhau d\u1ec5 d\u00e0ng h\u01a1n.<\/li>\n<\/ul>\n<h3><span id=\"38_Thiet_bi_mo_rong_vung_phu_song_wifi_Access_Point\">3.8\/ Thi\u1ebft b\u1ecb m\u1edf r\u1ed9ng v\u00f9ng ph\u1ee7 s\u00f3ng wifi \u2013 Access Point<\/span><\/h3>\n<figure id=\"attachment_772\" aria-describedby=\"caption-attachment-772\" style=\"width: 800px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-772\" src=\"https:\/\/vtechsolutions.vn\/blog\/wp-content\/uploads\/2023\/03\/cau-tao-cua-access-point-zyxel-cong-nghe-wifi-6-1024x569.jpg\" alt=\"c\u1ea5u t\u1ea1o c\u1ee7a access point zyxel c\u00f4ng ngh\u1ec7 wifi 6\" width=\"800\" height=\"445\" srcset=\"https:\/\/vtechsolutions.vn\/blog\/wp-content\/uploads\/2023\/03\/cau-tao-cua-access-point-zyxel-cong-nghe-wifi-6-1024x569.jpg 1024w, https:\/\/vtechsolutions.vn\/blog\/wp-content\/uploads\/2023\/03\/cau-tao-cua-access-point-zyxel-cong-nghe-wifi-6-300x167.jpg 300w, https:\/\/vtechsolutions.vn\/blog\/wp-content\/uploads\/2023\/03\/cau-tao-cua-access-point-zyxel-cong-nghe-wifi-6-768x427.jpg 768w, https:\/\/vtechsolutions.vn\/blog\/wp-content\/uploads\/2023\/03\/cau-tao-cua-access-point-zyxel-cong-nghe-wifi-6.jpg 1396w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-772\" class=\"wp-caption-text\">Thi\u1ebft b\u1ecb m\u1edf r\u1ed9ng v\u00f9ng ph\u1ee7 s\u00f3ng wifi \u2013 Access Point<\/figcaption><\/figure>\n<p><a href=\"https:\/\/vtechsolutions.vn\/blog\/access-point-la-gi\/\">Thi\u1ebft b\u1ecb m\u1edf r\u1ed9ng v\u00f9ng ph\u1ee7 s\u00f3ng wifi \u2013 Access Point<\/a> l\u00e0 m\u1ed9t thi\u1ebft b\u1ecb trong m\u1ea1ng kh\u00f4ng d\u00e2y t\u1ea1o ra m\u1ea1ng kh\u00f4ng d\u00e2y v\u00e0 cho ph\u00e9p ng\u01b0\u1eddi d\u00f9ng truy c\u1eadp m\u1ea1ng \u0111\u00f3.<\/p>\n<p>C\u00e1c \u0111i\u1ec3m truy c\u1eadp ho\u1ea1t \u0111\u1ed9ng b\u1eb1ng c\u00e1ch k\u1ebft n\u1ed1i tr\u1ef1c ti\u1ebfp v\u1edbi b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn b\u0103ng th\u00f4ng r\u1ed9ng ho\u1eb7c b\u1ed9 chuy\u1ec3n m\u1ea1ch m\u1ea1ng b\u1eb1ng c\u00e1p Ethernet ho\u1eb7c c\u00e1p d\u1eef li\u1ec7u. \u0110i\u1ec1u n\u00e0y cung c\u1ea5p cho Access Point k\u1ebft n\u1ed1i internet v\u00e0 b\u0103ng th\u00f4ng c\u1ea7n thi\u1ebft. Sau \u0111\u00f3, n\u00f3 truy\u1ec1n v\u00e0 nh\u1eadn t\u00edn hi\u1ec7u kh\u00f4ng d\u00e2y \u1edf d\u1ea3i t\u1ea7n s\u1ed1 2,4Ghz ho\u1eb7c 5Ghz (WIFI), t\u1eeb \u0111\u00f3 cho ph\u00e9p b\u1ea1n k\u1ebft n\u1ed1i kh\u00f4ng d\u00e2y v\u1edbi M\u1ea1ng c\u1ee5c b\u1ed9 (LAN) v\u00e0 internet.<\/p>\n<p>C\u00e1c \u0111i\u1ec3m truy c\u1eadp WiFi c\u00f3 th\u1ec3 ph\u1ee5c v\u1ee5 nhi\u1ec1u ch\u1ee9c n\u0103ng kh\u00e1c nhau ngo\u00e0i vi\u1ec7c cung c\u1ea5p \u0111\u01b0\u1eddng d\u1eabn k\u1ebft n\u1ed1i v\u1edbi Internet. N\u00f3 c\u00f3 th\u1ec3 m\u1edf r\u1ed9ng ph\u1ea1m vi ph\u1ee7 s\u00f3ng c\u1ee7a m\u1ea1ng, \u0111\u1eb7c bi\u1ec7t l\u00e0 nh\u1eefng n\u01a1i m\u1ea1ng WiFi ph\u1ee7 s\u00f3ng kh\u00f4ng m\u1ea1nh nh\u01b0 mong mu\u1ed1n. Do \u0111\u00f3, ch\u00fang \u0111\u1eb7c bi\u1ec7t h\u1eefu \u00edch trong c\u00e1c khu v\u1ef1c r\u1ed9ng l\u1edbn, ch\u1eb3ng h\u1ea1n nh\u01b0 n\u01a1i l\u00e0m vi\u1ec7c, nh\u00e0 m\u00e1y, trung t\u00e2m mua s\u1eafm, s\u00e2n v\u1eadn \u0111\u1ed9ng, nh\u00e0 h\u00e1t, kh\u00e1ch s\u1ea1n,..<\/p>\n<p><strong>&gt;&gt;&gt; Xem th\u00eam:<\/strong> <a href=\"https:\/\/vtechsolutions.vn\/blog\/chuan-wifi-5-la-gi\/#4_Chuan_Wifi_5_80211ac_vuot_troi_hon_chuan_Wifi_4_80211n_nhu_the_nao\">Chu\u1ea9n Wifi 5 (802.11ac) v\u01b0\u1ee3t tr\u1ed9i h\u01a1n chu\u1ea9n Wifi 4 (802.11n) nh\u01b0 th\u1ebf n\u00e0o?<\/a><\/p>\n<h3><span id=\"39_Thiet_bi_ket_noi_mang_8211_Modem\">3.9\/ Thi\u1ebft b\u1ecb k\u1ebft n\u1ed1i m\u1ea1ng &#8211; Modem<\/span><\/h3>\n<figure id=\"attachment_839\" aria-describedby=\"caption-attachment-839\" style=\"width: 800px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-839\" src=\"https:\/\/vtechsolutions.vn\/blog\/wp-content\/uploads\/2023\/03\/thiet-bi-hoa-mang-modem-1024x682.jpg\" alt=\"Thi\u1ebft b\u1ecb h\u00f2a m\u1ea1ng - Modem\" width=\"800\" height=\"533\" srcset=\"https:\/\/vtechsolutions.vn\/blog\/wp-content\/uploads\/2023\/03\/thiet-bi-hoa-mang-modem-1024x682.jpg 1024w, https:\/\/vtechsolutions.vn\/blog\/wp-content\/uploads\/2023\/03\/thiet-bi-hoa-mang-modem-300x200.jpg 300w, https:\/\/vtechsolutions.vn\/blog\/wp-content\/uploads\/2023\/03\/thiet-bi-hoa-mang-modem-768x512.jpg 768w, https:\/\/vtechsolutions.vn\/blog\/wp-content\/uploads\/2023\/03\/thiet-bi-hoa-mang-modem-900x600.jpg 900w, https:\/\/vtechsolutions.vn\/blog\/wp-content\/uploads\/2023\/03\/thiet-bi-hoa-mang-modem.jpg 1189w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-839\" class=\"wp-caption-text\">Thi\u1ebft b\u1ecb h\u00f2a m\u1ea1ng &#8211; Modem<\/figcaption><\/figure>\n<p>Modem l\u00e0 m\u1ed9t h\u1ed9p k\u1ebft n\u1ed1i m\u1ea1ng gia \u0111\u00ecnh c\u1ee7a b\u1ea1n v\u1edbi nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 internet ho\u1eb7c ISP. Modem bi\u1ebfn \u0111\u1ed5i th\u00f4ng tin k\u1ef9 thu\u1eadt s\u1ed1 t\u1eeb m\u00e1y t\u00ednh c\u1ee7a b\u1ea1n th\u00e0nh t\u00edn hi\u1ec7u t\u01b0\u01a1ng t\u1ef1 c\u00f3 th\u1ec3 truy\u1ec1n qua d\u00e2y d\u1eabn (v\u00e0 ng\u01b0\u1ee3c l\u1ea1i) b\u1eb1ng c\u00e1ch \u0111i\u1ec1u ch\u1ebf v\u00e0 gi\u1ea3i \u0111i\u1ec1u ch\u1ebf c\u00e1c xung \u0111i\u1ec7n \u0111\u01b0\u1ee3c g\u1eedi qua \u0111\u01b0\u1eddng d\u00e2y \u0111i\u1ec7n tho\u1ea1i, c\u00e1p \u0111\u1ed3ng tr\u1ee5c ho\u1eb7c c\u00e1c lo\u1ea1i d\u00e2y d\u1eabn kh\u00e1c.<\/p>\n<p>H\u1ea7u h\u1ebft c\u00e1c modem \u0111\u1ed9c l\u1eadp ch\u1ec9 c\u00f3 hai c\u1ed5ng: C\u1ed5ng WAN (m\u1ea1ng di\u1ec7n r\u1ed9ng) d\u00e0nh cho c\u00e1p \u0111\u1ebfn t\u1eeb nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 internet (c\u00f2n g\u1ecdi l\u00e0 ISP), trong khi c\u1ed5ng c\u00f2n l\u1ea1i k\u1ebft n\u1ed1i modem v\u1edbi b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn ho\u1eb7c thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed.<\/p>\n<p>Trong nhi\u1ec1u tr\u01b0\u1eddng h\u1ee3p, nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 internet s\u1ebd thu\u00ea modem cho kh\u00e1ch h\u00e0ng c\u1ee7a h\u1ecd. Kh\u00e1ch h\u00e0ng tr\u1ea3 ti\u1ec1n h\u00e0ng th\u00e1ng cho thi\u1ebft b\u1ecb, nh\u01b0ng n\u00f3 \u0111\u01b0\u1ee3c b\u1ea3o h\u00e0nh theo h\u1ee3p \u0111\u1ed3ng d\u1ecbch v\u1ee5 v\u00e0 vi\u1ec7c n\u00e2ng c\u1ea5p c\u00f3 th\u1ec3 mi\u1ec5n ph\u00ed trong m\u1ed9t kho\u1ea3ng th\u1eddi gian nh\u1ea5t \u0111\u1ecbnh.<\/p>\n<p>Tr\u00ean \u0111\u00e2y l\u00e0 c\u00e1c th\u00f4ng tin v\u1ec1 thi\u1ebft b\u1ecb m\u1ea1ng m\u00e0 ch\u00fang t\u00f4i mu\u1ed1n g\u1eedi \u0111\u1ebfn b\u1ea1n \u0111\u1ecdc. Hy v\u1ecdng qua \u0111\u00f3 s\u1ebd gi\u00fap b\u1ea1n n\u1eafm \u0111\u01b0\u1ee3c c\u00e1c th\u00e0nh ph\u1ea7n c\u01a1 b\u1ea3n v\u00e0 ch\u1ee9c n\u0103ng c\u1ee7a c\u00e1c thi\u1ebft b\u1ecb. N\u1ebfu qu\u00fd kh\u00e1ch h\u00e0ng \u0111ang c\u00f3 nhu c\u1ea7u l\u1eafp \u0111\u1eb7t m\u1ea1ng h\u00e3y li\u00ean h\u1ec7 v\u1edbi VTech \u0111\u1ec3 \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3 v\u00e0 t\u01b0 v\u1ea5n th\u00eam th\u00f4ng tin nh\u00e9.<\/p>\n<p><strong>Tham kh\u1ea3o th\u00eam:<\/strong><\/p>\n<ul>\n<li><a href=\"https:\/\/vtechsolutions.vn\/blog\/phan-biet-su-khac-nhau-giua-access-point-router-va-modem\/\">So s\u00e1nh s\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa Access Point, Router v\u00e0 Modem<\/a><\/li>\n<li><a href=\"https:\/\/vtechsolutions.vn\/blog\/he-thong-mang-may-tinh-la-gi\/#9_Don_vi_lap_dat_he_thong_mang_uy_tin_tai_TPHCM_va_ca_nuoc\">\u0110\u01a1n v\u1ecb l\u1eafp \u0111\u1eb7t h\u1ec7 th\u1ed1ng m\u1ea1ng uy t\u00edn t\u1ea1i TPHCM v\u00e0 c\u1ea3 n\u01b0\u1edbc<\/a><\/li>\n<li><a href=\"https:\/\/vtechsolutions.vn\/blog\/cac-buoc-thiet-ke-he-thong-mang\/#4_Nhung_dieu_can_luu_y_khi_thiet_ke_xay_dung_he_thong_mang_cho_doanh_nghiep\">Nh\u1eefng \u0111i\u1ec1u c\u1ea7n l\u01b0u \u00fd khi thi\u1ebft k\u1ebf x\u00e2y d\u1ef1ng h\u1ec7 th\u1ed1ng m\u1ea1ng cho doanh nghi\u1ec7p<\/a><\/li>\n<li><a href=\"https:\/\/vtechsolutions.vn\/blog\/he-thong-mang-lan-la-gi\/#7_Cac_buoc_xay_dung_he_thong_mang_LAN_cho_cong_ty\">C\u00e1c b\u01b0\u1edbc x\u00e2y d\u1ef1ng h\u1ec7 th\u1ed1ng m\u1ea1ng LAN cho c\u00f4ng ty<\/a><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Thi\u1ebft b\u1ecb m\u1ea1ng m\u1ed9t danh t\u1eeb chung d\u01b0\u1eddng nh\u01b0 \u0111\u00e3 qu\u00e1 quen thu\u1ed9c. Tuy nhi\u00ean, li\u1ec7u b\u1ea1n c\u00f3 bi\u1ebft ch\u00fang bao g\u1ed3m nh\u1eefng th\u00e0nh ph\u1ea7n n\u00e0o v\u00e0 ch\u1ee9c n\u0103ng ra<\/p>\n","protected":false},"author":1,"featured_media":786,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[181,5],"tags":[],"class_list":["post-808","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-he-thong-thiet-bi-mang","category-tin-tuc"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Nh\u1eefng thi\u1ebft b\u1ecb m\u1ea1ng c\u00f3 trong m\u1ed9t h\u1ec7 th\u1ed1ng m\u1ea1ng g\u1ed3m nh\u1eefng g\u00ec?<\/title>\n<meta name=\"description\" content=\"M\u1ed9t h\u1ec7 th\u1ed1ng m\u1ea1ng ho\u00e0n ch\u1ec9nh g\u1ed3m nh\u1eefng th\u00e0nh ph\u1ea7n n\u00e0o, c\u00f3 nh\u1eefng thi\u1ebft b\u1ecb m\u1ea1ng g\u00ec v\u00e0 c\u00f4ng d\u1ee5ng c\u1ee7a t\u1eebng thi\u1ebft b\u1ecb m\u1ea1ng\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/vtechsolutions.vn\/blog\/thiet-bi-mang-bao-gom-nhung-gi\/\" \/>\n<meta property=\"og:locale\" content=\"vi_VN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Nh\u1eefng thi\u1ebft b\u1ecb m\u1ea1ng c\u00f3 trong m\u1ed9t h\u1ec7 th\u1ed1ng m\u1ea1ng g\u1ed3m nh\u1eefng g\u00ec?\" \/>\n<meta property=\"og:description\" content=\"M\u1ed9t h\u1ec7 th\u1ed1ng m\u1ea1ng ho\u00e0n ch\u1ec9nh g\u1ed3m nh\u1eefng th\u00e0nh ph\u1ea7n n\u00e0o, c\u00f3 nh\u1eefng thi\u1ebft b\u1ecb m\u1ea1ng g\u00ec v\u00e0 c\u00f4ng d\u1ee5ng c\u1ee7a t\u1eebng thi\u1ebft b\u1ecb m\u1ea1ng\" \/>\n<meta property=\"og:url\" content=\"https:\/\/vtechsolutions.vn\/blog\/thiet-bi-mang-bao-gom-nhung-gi\/\" \/>\n<meta property=\"og:site_name\" content=\"VTech Solutions\" \/>\n<meta property=\"article:published_time\" content=\"2023-03-24T02:16:18+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2023-10-25T02:51:52+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/vtechsolutions.vn\/blog\/wp-content\/uploads\/2023\/03\/thiet-bi-zyxel.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1440\" \/>\n\t<meta property=\"og:image:height\" content=\"1000\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"adminVtech\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u0110\u01b0\u1ee3c vi\u1ebft b\u1edfi\" \/>\n\t<meta name=\"twitter:data1\" content=\"adminVtech\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u01af\u1edbc t\u00ednh th\u1eddi gian \u0111\u1ecdc\" \/>\n\t<meta name=\"twitter:data2\" content=\"16 ph\u00fat\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/vtechsolutions.vn\/blog\/thiet-bi-mang-bao-gom-nhung-gi\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/vtechsolutions.vn\/blog\/thiet-bi-mang-bao-gom-nhung-gi\/\"},\"author\":{\"name\":\"adminVtech\",\"@id\":\"https:\/\/vtechsolutions.vn\/blog\/#\/schema\/person\/5b468e8e6d63d28ea4323d7a9b675cfd\"},\"headline\":\"Thi\u1ebft b\u1ecb m\u1ea1ng trong h\u1ec7 th\u1ed1ng m\u1ea1ng g\u1ed3m nh\u1eefng g\u00ec? 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