v\u00e0 kho\u1ea3ng c\u00e1ch truy\u1ec1n d\u00e0i h\u01a1n. S\u1ee3i quang s\u1eed d\u1ee5ng \u00e1nh s\u00e1ng thay v\u00ec t\u00edn hi\u1ec7u \u0111i\u1ec7n, l\u00e0m cho n\u00f3 mi\u1ec5n nhi\u1ec5m v\u1edbi nhi\u1ec5u \u0111i\u1ec7n t\u1eeb. S\u1ee3i quang th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c k\u1ebft n\u1ed1i x\u01b0\u01a1ng s\u1ed1ng gi\u1eefa c\u00e1c t\u00f2a nh\u00e0, trung t\u00e2m d\u1eef li\u1ec7u ho\u1eb7c l\u00f5i m\u1ea1ng doanh nghi\u1ec7p l\u1edbn.<\/a> M\u1eb7c d\u00f9 s\u1ee3i quang cung c\u1ea5p t\u1ed1c \u0111\u1ed9 cao h\u01a1n v\u00e0 t\u1ea7m v\u1edbi d\u00e0i h\u01a1n, c\u00e1c gi\u1ea3i ph\u00e1p c\u00e1p LAN \u0111\u1ed3ng v\u1eabn l\u00e0 ti\u00eau chu\u1ea9n \u0111\u1ec3 k\u1ebft n\u1ed1i c\u00e1c thi\u1ebft b\u1ecb ri\u00eang l\u1ebb v\u1edbi c\u00e1c b\u1ed9 chuy\u1ec3n m\u1ea1ch v\u00e0 b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn trong m\u1ed9t m\u1ea1ng c\u1ee5c b\u1ed9.<\/p>\n\n\n\nTh\u1ef1c H\u00e0nh T\u1ed1t Nh\u1ea5t V\u1ec1 L\u1eafp \u0110\u1eb7t v\u00e0 Ki\u1ec3m So\u00e1t Nhi\u1ec5u.<\/p>\n\n\n
Vi\u1ec7c l\u1eafp \u0111\u1eb7t c\u00e1p LAN \u0111\u00fang c\u00e1ch \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn hi\u1ec7u su\u1ea5t m\u1ea1ng l\u00e2u d\u00e0i. C\u00e1p kh\u00f4ng n\u00ean b\u1ecb u\u1ed1n cong \u0111\u1ed9t ng\u1ed9t ho\u1eb7c n\u00e9n ch\u1eb7t, v\u00ec \u0111i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 l\u00e0m h\u1ecfng c\u00e1c c\u1eb7p \u0111\u1ed3ng b\u00ean trong v\u00e0 l\u00e0m y\u1ebfu t\u00edn hi\u1ec7u. Duy tr\u00ec b\u00e1n k\u00ednh u\u1ed1n cong \u0111\u00fang v\u00e0 b\u1ea3o v\u1ec7 c\u00e1p ng\u0103n ng\u1eeba c\u0103ng th\u1eb3ng tr\u00ean c\u00e1c \u0111\u1ea7u n\u1ed1i v\u00e0 ph\u00edch c\u1eafm.<\/h2>\n\n\n
S\u1eed d\u1ee5ng c\u00e1p c\u00f3 che ch\u1eafn trong m\u00f4i tr\u01b0\u1eddng c\u00f4ng nghi\u1ec7p ho\u1eb7c c\u00f3 \u0111i\u1ec7n cao gi\u1ea3m nhi\u1ec5u. Thi\u1ebft k\u1ebf c\u00e1p LAN c\u00f3 che ch\u1eafn bao g\u1ed3m c\u00e1ch nhi\u1ec7t b\u1ed5 sung \u0111\u1ec3 b\u1ea3o v\u1ec7 truy\u1ec1n t\u00edn hi\u1ec7u kh\u1ecfi ti\u1ebfng \u1ed3n \u0111i\u1ec7n b\u00ean ngo\u00e0i. C\u00e1c b\u1ea3ng patch \u0111\u01b0\u1ee3c t\u1ed5 ch\u1ee9c v\u00e0 c\u00e1c k\u1ebft n\u1ed1i c\u00e1p patch \u0111\u01b0\u1ee3c g\u1eafn nh\u00e3n r\u00f5 r\u00e0ng \u0111\u01a1n gi\u1ea3n h\u00f3a vi\u1ec7c kh\u1eafc ph\u1ee5c s\u1ef1 c\u1ed1 v\u00e0 b\u1ea3o tr\u00ec.<\/p>\n\n\n\n
Vi\u1ec7c l\u1eafp \u0111\u1eb7t \u0111\u00fang c\u00e1ch \u0111\u1ea3m b\u1ea3o r\u1eb1ng m\u1ed7i c\u00e1p duy tr\u00ec t\u1ed1c \u0111\u1ed9 t\u1ed1i \u01b0u, truy\u1ec1n nh\u1ea5t qu\u00e1n v\u00e0 hi\u1ec7u su\u1ea5t m\u1ea1ng \u1ed5n \u0111\u1ecbnh.<\/p>\n\n\n\n
T\u1ea1i Sao C\u00e1p LAN V\u1eabn C\u1ea7n Thi\u1ebft.<\/p>\n\n\n
M\u1eb7c d\u00f9 c\u00f3 nh\u1eefng ti\u1ebfn b\u1ed9 trong c\u00f4ng ngh\u1ec7 kh\u00f4ng d\u00e2y, c\u00e1p LAN v\u1eabn l\u00e0 n\u1ec1n t\u1ea3ng c\u1ee7a m\u1ea1ng hi\u1ec7n \u0111\u1ea1i. M\u1ed7i m\u1ea1ng doanh nghi\u1ec7p, ph\u00f2ng m\u00e1y ch\u1ee7 v\u00e0 l\u1eafp \u0111\u1eb7t v\u0103n ph\u00f2ng c\u00f3 c\u1ea5u tr\u00fac \u0111\u1ec1u d\u1ef1a v\u00e0o c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng c\u00e1p Ethernet \u0111\u1ec3 k\u1ebft n\u1ed1i c\u00e1c thi\u1ebft b\u1ecb m\u1ed9t c\u00e1ch \u0111\u00e1ng tin c\u1eady. K\u1ebft n\u1ed1i LAN h\u1ed7 tr\u1ee3 m\u00e1y in, m\u00e1y ch\u1ee7, b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn, b\u1ed9 chuy\u1ec3n m\u1ea1ch v\u00e0 c\u00e1c thi\u1ebft b\u1ecb c\u1ea7n thi\u1ebft kh\u00e1c y\u00eau c\u1ea7u truy\u1ec1n d\u1eef li\u1ec7u \u1ed5n \u0111\u1ecbnh, t\u1ed1c \u0111\u1ed9 cao.<\/h2>\n\n\n
V\u00ec c\u00f4ng ngh\u1ec7 c\u00e1p LAN tu\u00e2n theo c\u00e1c ti\u00eau chu\u1ea9n nghi\u00eam ng\u1eb7t v\u00e0 c\u00e1c giao th\u1ee9c \u0111\u00e3 \u0111\u01b0\u1ee3c ch\u1ee9ng minh, n\u00f3 ti\u1ebfp t\u1ee5c cung c\u1ea5p hi\u1ec7u su\u1ea5t d\u1ef1 \u0111o\u00e1n \u0111\u01b0\u1ee3c trong c\u00e1c m\u00f4i tr\u01b0\u1eddng m\u00e0 th\u1eddi gian ch\u1ebft l\u00e0 kh\u00f4ng th\u1ec3 ch\u1ea5p nh\u1eadn.<\/p>\n\n\n\n
C\u00e1p LAN kh\u00f4ng ch\u1ec9 l\u00e0 m\u1ed9t s\u1ee3i d\u00e2y. N\u00f3 l\u00e0 m\u1ed9t th\u00e0nh ph\u1ea7n c\u1ed1t l\u00f5i c\u1ee7a b\u1ea5t k\u1ef3.<\/p>\n\n\n
Suy ngh\u0129 cu\u1ed1i c\u00f9ng<\/h2>\n\n\n
m\u1ea1ng \u0111\u00e1ng tin c\u1eady n\u00e0o , cho ph\u00e9p truy\u1ec1n d\u1eef li\u1ec7u an to\u00e0n, t\u1ed1c \u0111\u1ed9 cao gi\u1eefa c\u00e1c thi\u1ebft b\u1ecb k\u1ebft n\u1ed1i. Cho d\u00f9 s\u1eed d\u1ee5ng \u0111\u1ed3ng hay s\u1ee3i quang, c\u00e1p patch hay l\u1eafp \u0111\u1eb7t x\u01b0\u01a1ng s\u1ed1ng, c\u00f4ng ngh\u1ec7 Ethernet \u0111\u1ea3m b\u1ea3o giao ti\u1ebfp nh\u1ea5t qu\u00e1n qua c\u00e1c b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn, b\u1ed9 chuy\u1ec3n m\u1ea1ch, m\u00e1y in v\u00e0 m\u00e1y ch\u1ee7.<\/a>, Hi\u1ec3u c\u00e1ch c\u00e1p LAN ho\u1ea1t \u0111\u1ed9ng, c\u00e1ch \u0111\u1ea7u n\u1ed1i RJ45 g\u1eafn v\u00e0o m\u1ed7i c\u1ed5ng v\u00e0 c\u00e1ch c\u00e1c ti\u00eau chu\u1ea9n h\u01b0\u1edbng d\u1eabn l\u1eafp \u0111\u1eb7t cho ph\u00e9p b\u1ea1n x\u00e2y d\u1ef1ng m\u1ed9t c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng m\u1ea1ng \u1ed5n \u0111\u1ecbnh v\u00e0 s\u1eb5n s\u00e0ng cho t\u01b0\u01a1ng lai. Trong m\u1ed9t th\u1ebf gi\u1edbi ng\u00e0y c\u00e0ng k\u1ebft n\u1ed1i, c\u00e1c gi\u1ea3i ph\u00e1p LAN Ethernet c\u00f3 d\u00e2y v\u1eabn l\u00e0 n\u1ec1n t\u1ea3ng c\u1ee7a giao ti\u1ebfp k\u1ef9 thu\u1eadt s\u1ed1 \u0111\u00e1ng tin c\u1eady.<\/p>\n\n\n\nHi\u1ec3u c\u00e1ch c\u00e1p LAN ho\u1ea1t \u0111\u1ed9ng, c\u00e1ch \u0111\u1ea7u n\u1ed1i RJ45 g\u1eafn v\u00e0o t\u1eebng c\u1ed5ng v\u00e0 c\u00e1ch c\u00e1c ti\u00eau chu\u1ea9n h\u01b0\u1edbng d\u1eabn c\u00e0i \u0111\u1eb7t cho ph\u00e9p b\u1ea1n x\u00e2y d\u1ef1ng m\u1ed9t h\u1ea1 t\u1ea7ng m\u1ea1ng \u1ed5n \u0111\u1ecbnh v\u00e0 s\u1eb5n s\u00e0ng cho t\u01b0\u01a1ng lai. Trong m\u1ed9t th\u1ebf gi\u1edbi ng\u00e0y c\u00e0ng k\u1ebft n\u1ed1i, c\u00e1c gi\u1ea3i ph\u00e1p LAN Ethernet c\u00f3 d\u00e2y v\u1eabn l\u00e0 n\u1ec1n t\u1ea3ng c\u1ee7a giao ti\u1ebfp k\u1ef9 thu\u1eadt s\u1ed1 \u0111\u00e1ng tin c\u1eady.<\/p>","protected":false},"excerpt":{"rendered":"
C\u00e1p LAN l\u00e0 m\u1ed9t lo\u1ea1i c\u00e1p Ethernet c\u00f3 d\u00e2y \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 k\u1ebft n\u1ed1i c\u00e1c thi\u1ebft b\u1ecb trong m\u1ed9t m\u1ea1ng c\u1ee5c b\u1ed9, cung c\u1ea5p truy\u1ec1n d\u1eef li\u1ec7u \u1ed5n \u0111\u1ecbnh v\u00e0 t\u1ed1c \u0111\u1ed9 cao th\u00f4ng qua c\u00e1c \u0111\u1ea7u n\u1ed1i RJ45. T\u00ecm hi\u1ec3u c\u00e1ch c\u00e1p LAN ho\u1ea1t \u0111\u1ed9ng, c\u00e1c lo\u1ea1i c\u1ee7a ch\u00fang, kh\u1ea3 n\u0103ng t\u1ed1c \u0111\u1ed9, ti\u00eau chu\u1ea9n l\u1eafp \u0111\u1eb7t v\u00e0 l\u00fd do t\u1ea1i sao ch\u00fang v\u1eabn \u0111\u00e1ng tin c\u1eady h\u01a1n c\u00e1c k\u1ebft n\u1ed1i kh\u00f4ng d\u00e2y.<\/p>","protected":false},"author":3,"featured_media":5535,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[22],"tags":[],"class_list":["post-5534","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-networks","entry"],"yoast_head":"\n
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