{"id":478016,"date":"2023-08-09T09:25:56","date_gmt":"2023-08-09T09:25:56","guid":{"rendered":""},"modified":"2023-09-05T11:15:52","modified_gmt":"2023-09-05T11:15:52","slug":"metropolitan-area-network-man","status":"publish","type":"wiki","link":"https:\/\/oneproxy.pro\/vn\/wiki\/metropolitan-area-network-man\/","title":{"rendered":"M\u1ea1ng khu v\u1ef1c \u0111\u00f4 th\u1ecb (MAN)"},"content":{"rendered":"<p>M\u1ea1ng khu v\u1ef1c \u0111\u00f4 th\u1ecb (MAN) l\u00e0 m\u1ed9t lo\u1ea1i m\u1ea1ng m\u00e1y t\u00ednh tr\u1ea3i r\u1ed9ng tr\u00ean m\u1ed9t khu v\u1ef1c \u0111\u1ecba l\u00fd l\u1edbn h\u01a1n m\u1ea1ng c\u1ee5c b\u1ed9 (LAN) nh\u01b0ng c\u00f3 quy m\u00f4 nh\u1ecf h\u01a1n so v\u1edbi m\u1ea1ng di\u1ec7n r\u1ed9ng (WAN). N\u00f3 k\u1ebft n\u1ed1i nhi\u1ec1u m\u1ea1ng LAN trong khu v\u1ef1c \u0111\u00f4 th\u1ecb, cho ph\u00e9p truy\u1ec1n v\u00e0 li\u00ean l\u1ea1c d\u1eef li\u1ec7u hi\u1ec7u qu\u1ea3 gi\u1eefa c\u00e1c \u0111\u1ecba \u0111i\u1ec3m kh\u00e1c nhau nh\u01b0 khu\u00f4n vi\u00ean, t\u00f2a nh\u00e0 v\u0103n ph\u00f2ng v\u00e0 th\u00e0nh ph\u1ed1. B\u00e0i vi\u1ebft n\u00e0y cung c\u1ea5p c\u00e1i nh\u00ecn t\u1ed5ng quan v\u1ec1 M\u1ea1ng Khu v\u1ef1c \u0110\u00f4 th\u1ecb, l\u1ecbch s\u1eed, c\u1ea5u tr\u00fac b\u00ean trong, c\u00e1c t\u00ednh n\u0103ng ch\u00ednh, lo\u1ea1i, c\u00e1ch s\u1eed d\u1ee5ng v\u00e0 ti\u1ec1m n\u0103ng ph\u00e1t tri\u1ec3n trong t\u01b0\u01a1ng lai c\u1ee7a n\u00f3.<\/p>\n<h2>L\u1ecbch s\u1eed v\u00e0 ngu\u1ed3n g\u1ed1c c\u1ee7a M\u1ea1ng khu v\u1ef1c \u0111\u00f4 th\u1ecb (MAN)<\/h2>\n<p>Kh\u00e1i ni\u1ec7m M\u1ea1ng khu v\u1ef1c \u0111\u00f4 th\u1ecb (MAN) c\u00f3 ngu\u1ed3n g\u1ed1c t\u1eeb nh\u1eefng n\u0103m 1970 v\u00e0 1980 khi nh\u1eefng ti\u1ebfn b\u1ed9 trong c\u00f4ng ngh\u1ec7 m\u1ea1ng b\u1eaft \u0111\u1ea7u k\u1ebft n\u1ed1i c\u00e1c m\u00e1y t\u00ednh trong m\u1ed9t khu v\u1ef1c \u0111\u1ecba l\u00fd h\u1ea1n ch\u1ebf. L\u1ea7n \u0111\u1ea7u ti\u00ean \u0111\u1ec1 c\u1eadp \u0111\u1ebfn MAN c\u00f3 th\u1ec3 b\u1eaft ngu\u1ed3n t\u1eeb c\u00e1c t\u00e0i li\u1ec7u nghi\u00ean c\u1ee9u v\u00e0 b\u00e1o c\u00e1o k\u1ef9 thu\u1eadt t\u1eeb th\u1eddi k\u1ef3 n\u00e0y, th\u1ea3o lu\u1eadn v\u1ec1 s\u1ef1 c\u1ea7n thi\u1ebft ph\u1ea3i m\u1edf r\u1ed9ng m\u1ea1ng c\u1ee5c b\u1ed9 v\u01b0\u1ee3t ra ngo\u00e0i ranh gi\u1edbi v\u1eadt l\u00fd tr\u1ef1c ti\u1ebfp c\u1ee7a ch\u00fang.<\/p>\n<p>Trong giai \u0111o\u1ea1n \u0111\u1ea7u ph\u00e1t tri\u1ec3n MAN, c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u v\u00e0 k\u1ef9 s\u01b0 nh\u1eb1m m\u1ee5c \u0111\u00edch t\u00ecm ra c\u00e1c gi\u1ea3i ph\u00e1p thi\u1ebft th\u1ef1c \u0111\u1ec3 k\u1ebft n\u1ed1i nhi\u1ec1u m\u1ea1ng LAN tr\u1ea3i r\u1ed9ng kh\u1eafp th\u00e0nh ph\u1ed1 ho\u1eb7c khu v\u1ef1c \u0111\u00f4 th\u1ecb. Nhu c\u1ea7u n\u00e0y n\u1ea3y sinh khi c\u00e1c doanh nghi\u1ec7p v\u00e0 t\u1ed5 ch\u1ee9c m\u1edf r\u1ed9ng ra ngo\u00e0i c\u00e1c \u0111\u1ecba \u0111i\u1ec3m v\u0103n ph\u00f2ng \u0111\u01a1n l\u1ebb v\u00e0 y\u00eau c\u1ea7u m\u1ed9t h\u1ec7 th\u1ed1ng truy\u1ec1n d\u1eef li\u1ec7u k\u1ebft n\u1ed1i v\u00e0 hi\u1ec7u qu\u1ea3 h\u01a1n.<\/p>\n<h2>Th\u00f4ng tin chi ti\u1ebft v\u1ec1 M\u1ea1ng khu v\u1ef1c \u0111\u00f4 th\u1ecb (MAN)<\/h2>\n<p>M\u1ea1ng khu v\u1ef1c \u0111\u00f4 th\u1ecb (MAN) th\u01b0\u1eddng ho\u1ea1t \u0111\u1ed9ng \u1edf t\u1ed1c \u0111\u1ed9 truy\u1ec1n d\u1eef li\u1ec7u cao h\u01a1n v\u00e0 bao ph\u1ee7 kho\u1ea3ng c\u00e1ch l\u1edbn h\u01a1n so v\u1edbi m\u1ea1ng LAN. N\u00f3 k\u1ebft h\u1ee3p nhi\u1ec1u m\u1ea1ng LAN s\u1eed d\u1ee5ng nhi\u1ec1u c\u00f4ng ngh\u1ec7 m\u1ea1ng kh\u00e1c nhau, ch\u1eb3ng h\u1ea1n nh\u01b0 c\u00e1p quang, li\u00ean k\u1ebft kh\u00f4ng d\u00e2y ho\u1eb7c k\u1ebft h\u1ee3p c\u1ea3 hai. M\u1ee5c \u0111\u00edch ch\u00ednh c\u1ee7a MAN l\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 li\u00ean l\u1ea1c d\u1eef li\u1ec7u nhanh ch\u00f3ng v\u00e0 \u0111\u00e1ng tin c\u1eady gi\u1eefa c\u00e1c \u0111\u1ecba \u0111i\u1ec3m kh\u00e1c nhau trong khu v\u1ef1c \u0111\u00f4 th\u1ecb.<\/p>\n<p>M\u1ea1ng khu v\u1ef1c \u0111\u00f4 th\u1ecb th\u01b0\u1eddng \u0111\u01b0\u1ee3c qu\u1ea3n l\u00fd b\u1edfi c\u00e1c c\u00f4ng ty vi\u1ec5n th\u00f4ng ho\u1eb7c Nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 Internet (ISP) v\u00e0 th\u01b0\u1eddng \u0111\u00f3ng vai tr\u00f2 l\u00e0 x\u01b0\u01a1ng s\u1ed1ng quan tr\u1ecdng \u0111\u1ec3 cung c\u1ea5p k\u1ebft n\u1ed1i internet cho c\u00e1c doanh nghi\u1ec7p v\u00e0 t\u1ed5 ch\u1ee9c. C\u00e1c m\u1ea1ng n\u00e0y \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 x\u1eed l\u00fd m\u1ed9t l\u01b0\u1ee3ng l\u1edbn l\u01b0u l\u01b0\u1ee3ng d\u1eef li\u1ec7u v\u00e0 \u0111\u01b0\u1ee3c trang b\u1ecb kh\u1ea3 n\u0103ng \u0111\u1ecbnh tuy\u1ebfn v\u00e0 chuy\u1ec3n m\u1ea1ch m\u1ea1nh m\u1ebd.<\/p>\n<h2>C\u1ea5u tr\u00fac b\u00ean trong v\u00e0 c\u00e1ch th\u1ee9c ho\u1ea1t \u0111\u1ed9ng c\u1ee7a M\u1ea1ng khu v\u1ef1c \u0111\u00f4 th\u1ecb (MAN)<\/h2>\n<p>C\u1ea5u tr\u00fac b\u00ean trong c\u1ee7a M\u1ea1ng khu v\u1ef1c \u0111\u00f4 th\u1ecb (MAN) li\u00ean quan \u0111\u1ebfn vi\u1ec7c k\u1ebft n\u1ed1i nhi\u1ec1u m\u1ea1ng LAN th\u00f4ng qua b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn, b\u1ed9 chuy\u1ec3n m\u1ea1ch v\u00e0 c\u00e1c thi\u1ebft b\u1ecb m\u1ea1ng kh\u00e1c. N\u00f3 cho ph\u00e9p c\u00e1c g\u00f3i d\u1eef li\u1ec7u di chuy\u1ec3n hi\u1ec7u qu\u1ea3 gi\u1eefa c\u00e1c \u0111\u1ecba \u0111i\u1ec3m kh\u00e1c nhau trong khu v\u1ef1c \u0111\u00f4 th\u1ecb.<\/p>\n<p>C\u00f4ng vi\u1ec7c \u0111i\u1ec3n h\u00ecnh c\u1ee7a MAN bao g\u1ed3m c\u00e1c b\u01b0\u1edbc sau:<\/p>\n<ol>\n<li>Truy\u1ec1n d\u1eef li\u1ec7u: Khi ng\u01b0\u1eddi d\u00f9ng g\u1eedi d\u1eef li\u1ec7u t\u1eeb m\u1ed9t \u0111\u1ecba \u0111i\u1ec3m trong khu v\u1ef1c \u0111\u00f4 th\u1ecb, tr\u01b0\u1edbc ti\u00ean d\u1eef li\u1ec7u s\u1ebd \u0111\u01b0\u1ee3c truy\u1ec1n \u0111\u1ebfn m\u1ea1ng LAN g\u1ea7n nh\u1ea5t.<\/li>\n<li>\u0110\u1ecbnh tuy\u1ebfn: Sau \u0111\u00f3, g\u00f3i d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c \u0111\u1ecbnh tuy\u1ebfn qua nhi\u1ec1u thi\u1ebft b\u1ecb m\u1ea1ng kh\u00e1c nhau, ch\u1eb3ng h\u1ea1n nh\u01b0 b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn, \u0111\u1ec3 \u0111\u1ebfn m\u1ea1ng LAN \u0111\u00edch.<\/li>\n<li>Ti\u1ebfp nh\u1eadn d\u1eef li\u1ec7u: M\u1ea1ng LAN nh\u1eadn x\u1eed l\u00fd d\u1eef li\u1ec7u v\u00e0 g\u1eedi \u0111\u1ebfn ng\u01b0\u1eddi nh\u1eadn d\u1ef1 ki\u1ebfn.<\/li>\n<\/ol>\n<p>To\u00e0n b\u1ed9 qu\u00e1 tr\u00ecnh di\u1ec5n ra li\u1ec1n m\u1ea1ch v\u00e0 \u0111\u1ea3m b\u1ea3o d\u1eef li\u1ec7u \u0111\u1ebfn \u0111\u00edch trong th\u1eddi gian ng\u1eafn, cho ph\u00e9p li\u00ean l\u1ea1c v\u00e0 trao \u0111\u1ed5i d\u1eef li\u1ec7u theo th\u1eddi gian th\u1ef1c gi\u1eefa c\u00e1c \u0111\u1ecba \u0111i\u1ec3m kh\u00e1c nhau.<\/p>\n<h2>Ph\u00e2n t\u00edch c\u00e1c t\u00ednh n\u0103ng ch\u00ednh c\u1ee7a M\u1ea1ng khu v\u1ef1c \u0111\u00f4 th\u1ecb (MAN)<\/h2>\n<p>M\u1ea1ng Khu v\u1ef1c \u0110\u00f4 th\u1ecb cung c\u1ea5p m\u1ed9t s\u1ed1 t\u00ednh n\u0103ng ch\u00ednh khi\u1ebfn ch\u00fang tr\u1edf th\u00e0nh m\u1ed9t th\u00e0nh ph\u1ea7n thi\u1ebft y\u1ebfu c\u1ee7a c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng m\u1ea1ng hi\u1ec7n \u0111\u1ea1i:<\/p>\n<ol>\n<li>\n<p><strong>Ph\u1ea1m vi \u0111\u1ecba l\u00fd<\/strong>: MAN bao ph\u1ee7 m\u1ed9t khu v\u1ef1c l\u1edbn h\u01a1n m\u1ea1ng LAN, khi\u1ebfn ch\u00fang ph\u00f9 h\u1ee3p \u0111\u1ec3 k\u1ebft n\u1ed1i nhi\u1ec1u \u0111\u1ecba \u0111i\u1ec3m trong th\u00e0nh ph\u1ed1 ho\u1eb7c khu v\u1ef1c \u0111\u00f4 th\u1ecb.<\/p>\n<\/li>\n<li>\n<p><strong>B\u0103ng t\u1ea7n cao<\/strong>: MAN cung c\u1ea5p kh\u1ea3 n\u0103ng truy\u1ec1n d\u1eef li\u1ec7u t\u1ed1c \u0111\u1ed9 cao, cho ph\u00e9p trao \u0111\u1ed5i nhanh ch\u00f3ng kh\u1ed1i l\u01b0\u1ee3ng d\u1eef li\u1ec7u l\u1edbn gi\u1eefa c\u00e1c m\u1ea1ng LAN \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i.<\/p>\n<\/li>\n<li>\n<p><strong>Kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng<\/strong>: C\u00e1c m\u1ea1ng n\u00e0y \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 \u0111\u00e1p \u1ee9ng s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a m\u1ea1ng LAN \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i v\u00e0 c\u00f3 th\u1ec3 d\u1ec5 d\u00e0ng m\u1edf r\u1ed9ng quy m\u00f4 \u0111\u1ec3 \u0111\u00e1p \u1ee9ng nhu c\u1ea7u ng\u00e0y c\u00e0ng t\u0103ng.<\/p>\n<\/li>\n<li>\n<p><strong>\u0111\u1ed9 tin c\u1eady<\/strong>: MAN \u0111\u01b0\u1ee3c x\u00e2y d\u1ef1ng v\u1edbi c\u00e1c t\u00ednh n\u0103ng d\u1ef1 ph\u00f2ng v\u00e0 ch\u1ecbu l\u1ed7i \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o k\u1ebft n\u1ed1i v\u00e0 truy\u1ec1n d\u1eef li\u1ec7u kh\u00f4ng b\u1ecb gi\u00e1n \u0111o\u1ea1n.<\/p>\n<\/li>\n<li>\n<p><strong>Hi\u1ec7u qu\u1ea3 chi ph\u00ed<\/strong>: So v\u1edbi vi\u1ec7c thi\u1ebft l\u1eadp c\u00e1c k\u1ebft n\u1ed1i \u0111i\u1ec3m-\u0111i\u1ec3m ri\u00eang bi\u1ec7t gi\u1eefa c\u00e1c m\u1ea1ng LAN, MAN cung c\u1ea5p gi\u1ea3i ph\u00e1p ti\u1ebft ki\u1ec7m chi ph\u00ed \u0111\u1ec3 k\u1ebft n\u1ed1i nhi\u1ec1u \u0111\u1ecba \u0111i\u1ec3m.<\/p>\n<\/li>\n<li>\n<p><strong>B\u1ea3o tr\u00ec d\u1ec5 d\u00e0ng<\/strong>: MAN th\u01b0\u1eddng \u0111\u01b0\u1ee3c qu\u1ea3n l\u00fd v\u00e0 b\u1ea3o tr\u00ec b\u1edfi c\u00e1c nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5, gi\u1ea3m g\u00e1nh n\u1eb7ng cho c\u00e1c t\u1ed5 ch\u1ee9c ri\u00eang l\u1ebb trong vi\u1ec7c x\u1eed l\u00fd c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng m\u1ea1ng.<\/p>\n<\/li>\n<\/ol>\n<h2>C\u00e1c lo\u1ea1i m\u1ea1ng \u0111\u00f4 th\u1ecb (MAN)<\/h2>\n<p>M\u1ea1ng khu v\u1ef1c \u0111\u00f4 th\u1ecb c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c ph\u00e2n lo\u1ea1i d\u1ef1a tr\u00ean \u0111\u1eb7c \u0111i\u1ec3m c\u00f4ng ngh\u1ec7 v\u00e0 ki\u1ebfn tr\u00fac c\u1ee7a ch\u00fang. Sau \u0111\u00e2y l\u00e0 m\u1ed9t s\u1ed1 lo\u1ea1i ph\u1ed5 bi\u1ebfn:<\/p>\n<h3>1. NG\u01af\u1edcI S\u1ee3i:<\/h3>\n<ul>\n<li>S\u1eed d\u1ee5ng c\u00e1p quang \u0111\u1ec3 truy\u1ec1n d\u1eef li\u1ec7u, cung c\u1ea5p k\u1ebft n\u1ed1i t\u1ed1c \u0111\u1ed9 cao v\u00e0 \u0111\u00e1ng tin c\u1eady.<\/li>\n<li>Th\u00edch h\u1ee3p cho c\u00e1c k\u1ebft n\u1ed1i \u0111\u01b0\u1eddng d\u00e0i trong khu v\u1ef1c \u0111\u00f4 th\u1ecb.<\/li>\n<\/ul>\n<h3>2. NG\u01af\u1edcI KH\u00d4NG D\u00c2Y (WMAN):<\/h3>\n<ul>\n<li>D\u1ef1a v\u00e0o c\u00e1c c\u00f4ng ngh\u1ec7 truy\u1ec1n th\u00f4ng kh\u00f4ng d\u00e2y, ch\u1eb3ng h\u1ea1n nh\u01b0 WiMAX (Kh\u1ea3 n\u0103ng t\u01b0\u01a1ng t\u00e1c to\u00e0n c\u1ea7u \u0111\u1ec3 truy c\u1eadp l\u00f2 vi s\u00f3ng) ho\u1eb7c WiFi.<\/li>\n<li>Cung c\u1ea5p kh\u1ea3 n\u0103ng k\u1ebft n\u1ed1i linh ho\u1ea1t v\u00e0 thu\u1eadn ti\u1ec7n, \u0111\u1eb7c bi\u1ec7t \u0111\u1ed1i v\u1edbi nh\u1eefng khu v\u1ef1c kh\u00f3 l\u1eafp \u0111\u1eb7t c\u00e1p.<\/li>\n<\/ul>\n<h3>3. NG\u01af\u1edcI lai:<\/h3>\n<ul>\n<li>K\u1ebft h\u1ee3p c\u1ea3 c\u00f4ng ngh\u1ec7 c\u00e1p quang v\u00e0 kh\u00f4ng d\u00e2y \u0111\u1ec3 t\u1ea1o ra m\u1ed9t m\u1ea1ng linh ho\u1ea1t v\u00e0 hi\u1ec7u qu\u1ea3.<\/li>\n<li>Cung c\u1ea5p nh\u1eefng l\u1ee3i th\u1ebf c\u1ee7a c\u1ea3 k\u1ebft n\u1ed1i c\u00f3 d\u00e2y v\u00e0 kh\u00f4ng d\u00e2y.<\/li>\n<\/ul>\n<h2>C\u00e1c c\u00e1ch s\u1eed d\u1ee5ng M\u1ea1ng khu v\u1ef1c \u0111\u00f4 th\u1ecb (MAN), c\u00e1c v\u1ea5n \u0111\u1ec1 v\u00e0 gi\u1ea3i ph\u00e1p<\/h2>\n<p>M\u1ea1ng khu v\u1ef1c \u0111\u00f4 th\u1ecb t\u00ecm th\u1ea5y c\u00e1c \u1ee9ng d\u1ee5ng trong c\u00e1c l\u0129nh v\u1ef1c v\u00e0 ng\u00e0nh c\u00f4ng nghi\u1ec7p kh\u00e1c nhau:<\/p>\n<ol>\n<li>\n<p><strong>K\u1ebft n\u1ed1i doanh nghi\u1ec7p<\/strong>: MAN cho ph\u00e9p c\u00e1c doanh nghi\u1ec7p k\u1ebft n\u1ed1i nhi\u1ec1u v\u0103n ph\u00f2ng, trung t\u00e2m d\u1eef li\u1ec7u v\u00e0 c\u01a1 s\u1edf c\u1ee7a h\u1ecd trong th\u00e0nh ph\u1ed1, th\u00fac \u0111\u1ea9y li\u00ean l\u1ea1c v\u00e0 chia s\u1ebb d\u1eef li\u1ec7u li\u1ec1n m\u1ea1ch.<\/p>\n<\/li>\n<li>\n<p><strong>C\u01a1 s\u1edf gi\u00e1o d\u1ee5c<\/strong>: MAN \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c tr\u01b0\u1eddng \u0111\u1ea1i h\u1ecdc v\u00e0 cao \u0111\u1eb3ng \u0111\u1ec3 k\u1ebft n\u1ed1i c\u00e1c tr\u01b0\u1eddng v\u00e0 ph\u00f2ng ban kh\u00e1c nhau, t\u1ea1o \u0111i\u1ec1u ki\u1ec7n thu\u1eadn l\u1ee3i cho vi\u1ec7c h\u1ee3p t\u00e1c nghi\u00ean c\u1ee9u v\u00e0 chia s\u1ebb t\u00e0i nguy\u00ean.<\/p>\n<\/li>\n<li>\n<p><strong>C\u01a1 quan ch\u00ednh ph\u1ee7<\/strong>: MAN \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c k\u1ebft n\u1ed1i c\u00e1c v\u0103n ph\u00f2ng v\u00e0 c\u01a1 quan ch\u00ednh ph\u1ee7 trong th\u00e0nh ph\u1ed1, th\u00fac \u0111\u1ea9y qu\u1ea3n l\u00fd v\u00e0 trao \u0111\u1ed5i d\u1eef li\u1ec7u hi\u1ec7u qu\u1ea3.<\/p>\n<\/li>\n<li>\n<p><strong>Ch\u0103m s\u00f3c s\u1ee9c kh\u1ecfe<\/strong>: C\u00e1c b\u1ec7nh vi\u1ec7n v\u00e0 trung t\u00e2m y t\u1ebf s\u1eed d\u1ee5ng MAN \u0111\u1ec3 chia s\u1ebb h\u1ed3 s\u01a1 b\u1ec7nh nh\u00e2n, d\u1eef li\u1ec7u y t\u1ebf v\u00e0 th\u00f4ng tin ch\u1ea9n \u0111o\u00e1n gi\u1eefa c\u00e1c c\u01a1 s\u1edf kh\u00e1c nhau, gi\u00fap ch\u0103m s\u00f3c b\u1ec7nh nh\u00e2n t\u1ed1t h\u01a1n.<\/p>\n<\/li>\n<\/ol>\n<p>Nh\u1eefng th\u00e1ch th\u1ee9c li\u00ean quan \u0111\u1ebfn MAN bao g\u1ed3m:<\/p>\n<ul>\n<li>\n<p><strong>M\u1ed1i quan t\u00e2m v\u1ec1 b\u1ea3o m\u1eadt<\/strong>: Khi d\u1eef li\u1ec7u di chuy\u1ec3n tr\u00ean m\u1ed9t khu v\u1ef1c l\u1edbn h\u01a1n, vi\u1ec7c \u0111\u1ea3m b\u1ea3o b\u1ea3o m\u1eadt d\u1eef li\u1ec7u tr\u1edf n\u00ean quan tr\u1ecdng. M\u00e3 h\u00f3a v\u00e0 c\u00e1c bi\u1ec7n ph\u00e1p b\u1ea3o m\u1eadt m\u1ea1nh m\u1ebd l\u00e0 c\u1ea7n thi\u1ebft \u0111\u1ec3 b\u1ea3o v\u1ec7 th\u00f4ng tin nh\u1ea1y c\u1ea3m.<\/p>\n<\/li>\n<li>\n<p><strong>Qu\u1ea3n l\u00fd b\u0103ng th\u00f4ng<\/strong>: V\u1edbi nhu c\u1ea7u d\u1eef li\u1ec7u ng\u00e0y c\u00e0ng t\u0103ng, vi\u1ec7c qu\u1ea3n l\u00fd b\u0103ng th\u00f4ng hi\u1ec7u qu\u1ea3 l\u00e0 \u0111i\u1ec1u c\u1ea7n thi\u1ebft \u0111\u1ec3 duy tr\u00ec hi\u1ec7u su\u1ea5t m\u1ea1ng.<\/p>\n<\/li>\n<li>\n<p><strong>B\u1ea3o tr\u00ec c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng<\/strong>: C\u1ea7n ph\u1ea3i b\u1ea3o tr\u00ec th\u01b0\u1eddng xuy\u00ean thi\u1ebft b\u1ecb v\u00e0 c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng m\u1ea1ng \u0111\u1ec3 tr\u00e1nh th\u1eddi gian ng\u1eebng ho\u1ea1t \u0111\u1ed9ng v\u00e0 \u0111\u1ea3m b\u1ea3o k\u1ebft n\u1ed1i \u0111\u00e1ng tin c\u1eady.<\/p>\n<\/li>\n<\/ul>\n<p>\u0110\u1ec3 gi\u1ea3i quy\u1ebft nh\u1eefng th\u00e1ch th\u1ee9c n\u00e0y, c\u00e1c t\u1ed5 ch\u1ee9c c\u00f3 th\u1ec3 \u00e1p d\u1ee5ng c\u00e1c giao th\u1ee9c b\u1ea3o m\u1eadt n\u00e2ng cao, tri\u1ec3n khai c\u01a1 ch\u1ebf Ch\u1ea5t l\u01b0\u1ee3ng d\u1ecbch v\u1ee5 (QoS) v\u00e0 \u0111\u1ea7u t\u01b0 v\u00e0o c\u00e1c bi\u1ec7n ph\u00e1p b\u1ea3o tr\u00ec ch\u1ee7 \u0111\u1ed9ng.<\/p>\n<h2>C\u00e1c \u0111\u1eb7c \u0111i\u1ec3m ch\u00ednh v\u00e0 so s\u00e1nh v\u1edbi c\u00e1c thu\u1eadt ng\u1eef t\u01b0\u01a1ng t\u1ef1<\/h2>\n<table>\n<thead>\n<tr>\n<th><strong>Thu\u1eadt ng\u1eef<\/strong><\/th>\n<th><strong>S\u1ef1 mi\u00eau t\u1ea3<\/strong><\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>LAN (M\u1ea1ng c\u1ee5c b\u1ed9)<\/td>\n<td>Bao ph\u1ee7 m\u1ed9t khu v\u1ef1c \u0111\u1ecba l\u00fd nh\u1ecf, th\u01b0\u1eddng l\u00e0 trong m\u1ed9t t\u00f2a nh\u00e0 ho\u1eb7c khu\u00f4n vi\u00ean tr\u01b0\u1eddng. MAN c\u00f3 ph\u1ea1m vi ph\u1ee7 s\u00f3ng l\u1edbn h\u01a1n so v\u1edbi m\u1ea1ng LAN.<\/td>\n<\/tr>\n<tr>\n<td>WAN (M\u1ea1ng di\u1ec7n r\u1ed9ng)<\/td>\n<td>Bao g\u1ed3m m\u1ed9t khu v\u1ef1c \u0111\u1ecba l\u00fd r\u1ed9ng l\u1edbn, ch\u1eb3ng h\u1ea1n nh\u01b0 nhi\u1ec1u th\u00e0nh ph\u1ed1 ho\u1eb7c qu\u1ed1c gia. MAN c\u00f3 quy m\u00f4 nh\u1ecf h\u01a1n WAN.<\/td>\n<\/tr>\n<tr>\n<td>WLAN (M\u1ea1ng c\u1ee5c b\u1ed9 kh\u00f4ng d\u00e2y)<\/td>\n<td>Phi\u00ean b\u1ea3n kh\u00f4ng d\u00e2y c\u1ee7a m\u1ea1ng LAN, gi\u1edbi h\u1ea1n \u1edf m\u1ed9t khu v\u1ef1c nh\u1ecf. MAN c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng c\u00f4ng ngh\u1ec7 kh\u00f4ng d\u00e2y nh\u01b0ng c\u00f3 ph\u1ea1m vi ph\u1ee7 s\u00f3ng l\u1edbn h\u01a1n.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Quan \u0111i\u1ec3m v\u00e0 c\u00f4ng ngh\u1ec7 t\u01b0\u01a1ng lai c\u1ee7a M\u1ea1ng khu v\u1ef1c \u0111\u00f4 th\u1ecb (MAN)<\/h2>\n<p>T\u01b0\u01a1ng lai c\u1ee7a M\u1ea1ng khu v\u1ef1c \u0111\u00f4 th\u1ecb \u0111\u1ea7y h\u1ee9a h\u1eb9n v\u1edbi m\u1ed9t s\u1ed1 c\u00f4ng ngh\u1ec7 m\u1edbi n\u1ed5i g\u00f3p ph\u1ea7n v\u00e0o s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a ch\u00fang:<\/p>\n<ol>\n<li>\n<p><strong>T\u00edch h\u1ee3p 5G<\/strong>: Vi\u1ec7c t\u00edch h\u1ee3p MAN v\u1edbi c\u00f4ng ngh\u1ec7 5G s\u1ebd n\u00e2ng cao t\u1ed1c \u0111\u1ed9 v\u00e0 k\u1ebft n\u1ed1i d\u1eef li\u1ec7u, t\u1ea1o \u0111i\u1ec1u ki\u1ec7n cho c\u00e1c \u1ee9ng d\u1ee5ng v\u00e0 d\u1ecbch v\u1ee5 m\u1edbi.<\/p>\n<\/li>\n<li>\n<p><strong>M\u1ea1ng \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1eb1ng ph\u1ea7n m\u1ec1m (SDN)<\/strong>: SDN cho ph\u00e9p qu\u1ea3n l\u00fd m\u1ea1ng \u0111\u1ed9ng, gi\u00fap t\u1ed1i \u01b0u h\u00f3a MAN \u0111\u1ec3 \u0111\u00e1p \u1ee9ng nhu c\u1ea7u thay \u0111\u1ed5i d\u1ec5 d\u00e0ng h\u01a1n.<\/p>\n<\/li>\n<li>\n<p><strong>\u0110i\u1ec7n to\u00e1n bi\u00ean<\/strong>: Vi\u1ec7c \u00e1p d\u1ee5ng \u0111i\u1ec7n to\u00e1n bi\u00ean trong MAN s\u1ebd gi\u1ea3m \u0111\u1ed9 tr\u1ec5 v\u00e0 cho ph\u00e9p x\u1eed l\u00fd d\u1eef li\u1ec7u nhanh h\u01a1n \u1edf bi\u00ean m\u1ea1ng.<\/p>\n<\/li>\n<\/ol>\n<h2>C\u00e1ch s\u1eed d\u1ee5ng ho\u1eb7c li\u00ean k\u1ebft m\u00e1y ch\u1ee7 proxy v\u1edbi M\u1ea1ng khu v\u1ef1c \u0111\u00f4 th\u1ecb (MAN)<\/h2>\n<p>M\u00e1y ch\u1ee7 proxy \u0111\u00f3ng m\u1ed9t vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c t\u1ed1i \u01b0u h\u00f3a v\u00e0 b\u1ea3o m\u1eadt l\u01b0u l\u01b0\u1ee3ng m\u1ea1ng trong M\u1ea1ng khu v\u1ef1c \u0111\u00f4 th\u1ecb. M\u1ed9t s\u1ed1 tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng bao g\u1ed3m:<\/p>\n<ol>\n<li>\n<p><strong>B\u1ea3o m\u1eadt n\u00e2ng cao<\/strong>: M\u00e1y ch\u1ee7 proxy c\u00f3 th\u1ec3 \u0111\u00f3ng vai tr\u00f2 trung gian gi\u1eefa ng\u01b0\u1eddi d\u00f9ng v\u00e0 m\u00e1y ch\u1ee7 b\u00ean ngo\u00e0i, b\u1ed5 sung th\u00eam m\u1ed9t l\u1edbp b\u1ea3o m\u1eadt b\u1eb1ng c\u00e1ch che gi\u1ea5u \u0111\u1ecba ch\u1ec9 IP c\u1ee7a ng\u01b0\u1eddi d\u00f9ng.<\/p>\n<\/li>\n<li>\n<p><strong>L\u1ecdc n\u1ed9i dung<\/strong>: M\u00e1y ch\u1ee7 proxy c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 th\u1ef1c thi c\u00e1c ch\u00ednh s\u00e1ch l\u1ecdc n\u1ed9i dung trong MAN, h\u1ea1n ch\u1ebf quy\u1ec1n truy c\u1eadp v\u00e0o c\u00e1c trang web ho\u1eb7c danh m\u1ee5c n\u1ed9i dung c\u1ee5 th\u1ec3.<\/p>\n<\/li>\n<li>\n<p><strong>C\u00e2n b\u1eb1ng t\u1ea3i<\/strong>: M\u00e1y ch\u1ee7 proxy c\u00f3 th\u1ec3 ph\u00e2n ph\u1ed1i l\u01b0u l\u01b0\u1ee3ng truy c\u1eadp \u0111\u1ebfn gi\u1eefa nhi\u1ec1u m\u00e1y ch\u1ee7, \u0111\u1ea3m b\u1ea3o s\u1eed d\u1ee5ng hi\u1ec7u qu\u1ea3 t\u00e0i nguy\u00ean m\u1ea1ng.<\/p>\n<\/li>\n<li>\n<p><strong>B\u1ed9 nh\u1edb \u0111\u1ec7m<\/strong>: M\u00e1y ch\u1ee7 proxy c\u00f3 th\u1ec3 l\u01b0u v\u00e0o b\u1ed9 nh\u1edb \u0111\u1ec7m n\u1ed9i dung \u0111\u01b0\u1ee3c truy c\u1eadp th\u01b0\u1eddng xuy\u00ean, gi\u1ea3m t\u1ea3i cho MAN v\u00e0 c\u1ea3i thi\u1ec7n t\u1ed1c \u0111\u1ed9 ph\u00e2n ph\u1ed1i d\u1eef li\u1ec7u.<\/p>\n<\/li>\n<\/ol>\n<h2>Li\u00ean k\u1ebft li\u00ean quan<\/h2>\n<p>\u0110\u1ec3 bi\u1ebft th\u00eam th\u00f4ng tin v\u1ec1 M\u1ea1ng khu v\u1ef1c \u0111\u00f4 th\u1ecb (MAN), b\u1ea1n c\u00f3 th\u1ec3 tham kh\u1ea3o c\u00e1c t\u00e0i nguy\u00ean sau:<\/p>\n<ol>\n<li><a href=\"https:\/\/www.cisco.com\/c\/en\/us\/solutions\/enterprise-networks\/metropolitan-area-network-man.html\" target=\"_new\" rel=\"noopener nofollow\">Gi\u1edbi thi\u1ec7u v\u1ec1 M\u1ea1ng khu v\u1ef1c \u0111\u00f4 th\u1ecb (MAN)<\/a> \u2013 Cisco<\/li>\n<li><a href=\"https:\/\/www.cloudflare.com\/learning\/network-layer\/what-is-a-man\/\" target=\"_new\" rel=\"noopener nofollow\">T\u00ecm hi\u1ec3u WAN, LAN v\u00e0 MAN<\/a> \u2013 Trung t\u00e2m h\u1ecdc t\u1eadp Cloudflare<\/li>\n<li><a href=\"https:\/\/www.metroethernetforum.org\/\" target=\"_new\" rel=\"noopener nofollow\">Di\u1ec5n \u0111\u00e0n Metro Ethernet (MEF)<\/a> \u2013 Li\u00ean minh c\u00f4ng nghi\u1ec7p to\u00e0n c\u1ea7u \u0111\u1ec3 ph\u00e1t tri\u1ec3n m\u1ea1ng Ethernet c\u1ea5p nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5<\/li>\n<\/ol>\n<p>T\u00f3m l\u1ea1i, M\u1ea1ng khu v\u1ef1c \u0111\u00f4 th\u1ecb (MAN) \u0111\u00f3ng vai tr\u00f2 l\u00e0 c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng truy\u1ec1n th\u00f4ng quan tr\u1ecdng \u0111\u1ec3 k\u1ebft n\u1ed1i nhi\u1ec1u m\u1ea1ng LAN trong m\u1ed9t th\u00e0nh ph\u1ed1 ho\u1eb7c khu v\u1ef1c \u0111\u00f4 th\u1ecb. V\u1edbi b\u0103ng th\u00f4ng cao, kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng v\u00e0 \u0111\u1ed9 tin c\u1eady, MAN t\u1ea1o \u0111i\u1ec1u ki\u1ec7n cho vi\u1ec7c truy\u1ec1n d\u1eef li\u1ec7u li\u1ec1n m\u1ea1ch v\u00e0 \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong c\u00e1c ho\u1ea1t \u0111\u1ed9ng kinh doanh, gi\u00e1o d\u1ee5c, ch\u00ednh ph\u1ee7 v\u00e0 ch\u0103m s\u00f3c s\u1ee9c kh\u1ecfe hi\u1ec7n \u0111\u1ea1i. Khi c\u00f4ng ngh\u1ec7 ti\u1ebfp t\u1ee5c ph\u00e1t tri\u1ec3n, t\u01b0\u01a1ng lai c\u1ee7a MAN c\u00f3 v\u1ebb \u0111\u1ea7y h\u1ee9a h\u1eb9n, v\u1edbi c\u00e1c c\u00f4ng ngh\u1ec7 m\u1edbi n\u1ed5i nh\u01b0 5G v\u00e0 SDN s\u1ebd n\u00e2ng cao h\u01a1n n\u1eefa kh\u1ea3 n\u0103ng c\u1ee7a ch\u00fang. C\u00e1c m\u00e1y ch\u1ee7 proxy, khi \u0111\u01b0\u1ee3c li\u00ean k\u1ebft v\u1edbi MAN, s\u1ebd b\u1ed5 sung th\u00eam m\u1ed9t l\u1edbp b\u1ea3o m\u1eadt v\u00e0 t\u1ed1i \u01b0u h\u00f3a, khi\u1ebfn ch\u00fang tr\u1edf th\u00e0nh m\u1ed9t th\u00e0nh ph\u1ea7n thi\u1ebft y\u1ebfu trong vi\u1ec7c tri\u1ec3n khai m\u1ea1ng hi\u1ec7n \u0111\u1ea1i.<\/p>","protected":false},"featured_media":0,"menu_order":0,"template":"","meta":{"_acf_changed":false,"content-type":"","inline_featured_image":false,"footnotes":""},"class_list":["post-478016","wiki","type-wiki","status-publish","hentry"],"acf":{"faq_title":"Frequently Asked Questions about <mark>Metropolitan Area Network (MAN)<\/mark>","faq_items":[{"question":"What is a Metropolitan Area Network (MAN)?","answer":"<p>A Metropolitan Area Network (MAN) is a type of computer network that spans a larger geographical area than a local area network (LAN) but is smaller in scale compared to a wide area network (WAN). It connects multiple LANs within a metropolitan area, facilitating efficient data transmission and communication between different locations such as campuses, office buildings, and cities.<\/p>"},{"question":"How did Metropolitan Area Networks (MANs) originate?","answer":"<p>The concept of MANs originated in the 1970s and 1980s when advancements in networking technologies led to the need for connecting computers within a limited geographical area. The first mention of MANs can be found in research papers and technical reports discussing the extension of local networks beyond their immediate physical boundaries.<\/p>"},{"question":"How does a Metropolitan Area Network (MAN) work?","answer":"<p>A MAN typically interconnects multiple LANs using routers, switches, and other networking devices. When data is sent from one location within the metropolitan area, it is transmitted to the nearest LAN. The data packet is then routed through the MAN's network devices to reach its destination LAN, where it is processed and delivered to the intended recipient.<\/p>"},{"question":"What are the key features of Metropolitan Area Networks (MANs)?","answer":"<p>MANs offer several key features, including extensive geographical coverage, high bandwidth for fast data transmission, scalability to accommodate growth, reliability with redundancy and fault-tolerance, cost-efficiency compared to point-to-point connections, and easy management and maintenance by service providers.<\/p>"},{"question":"What types of Metropolitan Area Networks (MANs) exist?","answer":"<p>There are different types of MANs based on technology and architecture:<\/p><ol><li>Fiber MAN: Utilizes fiber-optic cables for high-speed and reliable connectivity.<\/li><li>Wireless MAN (WMAN): Relies on wireless communication technologies like WiMAX or WiFi.<\/li><li>Hybrid MAN: Combines both fiber-optic and wireless technologies for resilience and efficiency.<\/li><\/ol>"},{"question":"How are Metropolitan Area Networks (MANs) used, and what are the associated challenges and solutions?","answer":"<p>MANs find applications in various sectors, such as enterprise connectivity, educational institutions, government agencies, and healthcare facilities. Challenges include security concerns, bandwidth management, and infrastructure maintenance. To address these, organizations can implement advanced security measures, quality of service (QoS) mechanisms, and proactive maintenance practices.<\/p>"},{"question":"How do proxy servers relate to Metropolitan Area Networks (MANs)?","answer":"<p>Proxy servers play a crucial role within MANs by enhancing security and optimizing data flow. They act as intermediaries between users and external servers, providing an additional layer of protection by masking users' IP addresses. Proxy servers also enable content filtering, load balancing, and caching to improve network performance.<\/p>"},{"question":"What are the future technologies for Metropolitan Area Networks (MANs)?","answer":"<p>The future of MANs looks promising with emerging technologies like 5G integration, software-defined networking (SDN), and edge computing. These advancements will further enhance data speeds, dynamic network management, and reduce latency within MANs.<\/p>"}]},"_links":{"self":[{"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/wiki\/478016","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/wiki"}],"about":[{"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/types\/wiki"}],"version-history":[{"count":0,"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/wiki\/478016\/revisions"}],"wp:attachment":[{"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/media?parent=478016"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}