{"id":475905,"date":"2023-08-09T07:24:43","date_gmt":"2023-08-09T07:24:43","guid":{"rendered":""},"modified":"2023-09-05T11:11:33","modified_gmt":"2023-09-05T11:11:33","slug":"area-border-router","status":"publish","type":"wiki","link":"https:\/\/oneproxy.pro\/vn\/wiki\/area-border-router\/","title":{"rendered":"B\u1ed9 \u0111\u1ecbnh tuy\u1ebfn bi\u00ean gi\u1edbi khu v\u1ef1c"},"content":{"rendered":"<p>B\u1ed9 \u0111\u1ecbnh tuy\u1ebfn bi\u00ean gi\u1edbi khu v\u1ef1c (ABR) l\u00e0 m\u1ed9t th\u00e0nh ph\u1ea7n quan tr\u1ecdng c\u1ee7a m\u1ea1ng m\u00e1y t\u00ednh, \u0111\u1eb7c bi\u1ec7t trong b\u1ed1i c\u1ea3nh c\u00e1c m\u1ea1ng quy m\u00f4 l\u1edbn, ch\u1eb3ng h\u1ea1n nh\u01b0 Internet. N\u00f3 ph\u1ee5c v\u1ee5 nh\u01b0 m\u1ed9t li\u00ean k\u1ebft thi\u1ebft y\u1ebfu gi\u1eefa c\u00e1c mi\u1ec1n ho\u1eb7c khu v\u1ef1c \u0111\u1ecbnh tuy\u1ebfn kh\u00e1c nhau trong m\u1ea1ng. ABR \u0111\u00f3ng m\u1ed9t vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c qu\u1ea3n l\u00fd v\u00e0 \u0111\u1ecbnh h\u01b0\u1edbng c\u00e1c g\u00f3i d\u1eef li\u1ec7u gi\u1eefa c\u00e1c khu v\u1ef1c n\u00e0y, t\u1ea1o \u0111i\u1ec1u ki\u1ec7n li\u00ean l\u1ea1c hi\u1ec7u qu\u1ea3 v\u00e0 truy\u1ec1n d\u1eef li\u1ec7u li\u1ec1n m\u1ea1ch. B\u00e0i vi\u1ebft n\u00e0y \u0111i s\u00e2u v\u00e0o l\u1ecbch s\u1eed, ch\u1ee9c n\u0103ng, lo\u1ea1i v\u00e0 tri\u1ec3n v\u1ecdng trong t\u01b0\u01a1ng lai c\u1ee7a B\u1ed9 \u0111\u1ecbnh tuy\u1ebfn bi\u00ean gi\u1edbi khu v\u1ef1c, t\u1eadp trung v\u00e0o m\u1ee9c \u0111\u1ed9 li\u00ean quan c\u1ee7a n\u00f3 v\u1edbi m\u1ea1ng m\u00e1y ch\u1ee7 proxy.<\/p>\n<h2>L\u1ecbch s\u1eed ngu\u1ed3n g\u1ed1c c\u1ee7a Area Border Router v\u00e0 s\u1ef1 \u0111\u1ec1 c\u1eadp \u0111\u1ea7u ti\u00ean v\u1ec1 n\u00f3<\/h2>\n<p>Kh\u00e1i ni\u1ec7m B\u1ed9 \u0111\u1ecbnh tuy\u1ebfn bi\u00ean gi\u1edbi khu v\u1ef1c xu\u1ea5t hi\u1ec7n c\u00f9ng v\u1edbi s\u1ef1 ra \u0111\u1eddi c\u1ee7a m\u1ea1ng m\u00e1y t\u00ednh v\u00e0o nh\u1eefng n\u0103m 1960 v\u00e0 1970. C\u00e1c nh\u00e0 thi\u1ebft k\u1ebf m\u1ea1ng ban \u0111\u1ea7u \u0111\u00e3 nh\u1eadn ra s\u1ef1 c\u1ea7n thi\u1ebft ph\u1ea3i chia c\u00e1c m\u1ea1ng l\u1edbn th\u00e0nh c\u00e1c khu v\u1ef1c nh\u1ecf h\u01a1n, d\u1ec5 qu\u1ea3n l\u00fd h\u01a1n \u0111\u1ec3 c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng v\u00e0 hi\u1ec7u su\u1ea5t. C\u00e1ch ti\u1ebfp c\u1eadn ki\u1ebfn tr\u00fac n\u00e0y \u0111\u00e3 d\u1eabn \u0111\u1ebfn s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a c\u00e1c giao th\u1ee9c \u0111\u1ecbnh tuy\u1ebfn ban \u0111\u1ea7u c\u1ee7a Internet, ch\u1eb3ng h\u1ea1n nh\u01b0 Giao th\u1ee9c c\u1ed5ng b\u00ean trong (IGP) v\u00e0 Giao th\u1ee9c c\u1ed5ng b\u00ean ngo\u00e0i (EGP).<\/p>\n<p>L\u1ea7n \u0111\u1ea7u ti\u00ean \u0111\u1ec1 c\u1eadp \u0111\u1ebfn B\u1ed9 \u0111\u1ecbnh tuy\u1ebfn bi\u00ean gi\u1edbi khu v\u1ef1c c\u00f3 th\u1ec3 b\u1eaft ngu\u1ed3n t\u1eeb \u0111\u1ea7u nh\u1eefng n\u0103m 1980 khi L\u1ef1c l\u01b0\u1ee3ng \u0111\u1eb7c nhi\u1ec7m k\u1ef9 thu\u1eadt Internet (IETF) chu\u1ea9n h\u00f3a giao th\u1ee9c \u0111\u1ecbnh tuy\u1ebfn H\u1ec7 th\u1ed1ng trung gian \u0111\u1ebfn H\u1ec7 th\u1ed1ng trung gian (IS-IS). Giao th\u1ee9c n\u00e0y \u0111\u01b0a ra kh\u00e1i ni\u1ec7m v\u1ec1 mi\u1ec1n \u0111\u1ecbnh tuy\u1ebfn \u201ckhu v\u1ef1c\u201d, \u201cc\u1ea5p 1\u201d v\u00e0 \u201cc\u1ea5p 2\u201d, \u0111\u1eb7t n\u1ec1n t\u1ea3ng cho ch\u1ee9c n\u0103ng ABR hi\u1ec7n \u0111\u1ea1i.<\/p>\n<h2>Th\u00f4ng tin chi ti\u1ebft v\u1ec1 Area Border Router: M\u1edf r\u1ed9ng ch\u1ee7 \u0111\u1ec1<\/h2>\n<h3>Ch\u1ee9c n\u0103ng c\u1ee7a B\u1ed9 \u0111\u1ecbnh tuy\u1ebfn bi\u00ean gi\u1edbi khu v\u1ef1c<\/h3>\n<p>Ch\u1ee9c n\u0103ng ch\u00ednh c\u1ee7a B\u1ed9 \u0111\u1ecbnh tuy\u1ebfn bi\u00ean gi\u1edbi khu v\u1ef1c l\u00e0 k\u1ebft n\u1ed1i c\u00e1c khu v\u1ef1c kh\u00e1c nhau trong m\u1ea1ng v\u00e0 qu\u1ea3n l\u00fd lu\u1ed3ng d\u1eef li\u1ec7u gi\u1eefa ch\u00fang. M\u1ed7i khu v\u1ef1c trong m\u1ea1ng duy tr\u00ec c\u00e1c b\u1ea3ng \u0111\u1ecbnh tuy\u1ebfn ri\u00eang v\u00e0 ABR \u0111\u00f3ng vai tr\u00f2 trung gian \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o chuy\u1ec3n ti\u1ebfp g\u00f3i hi\u1ec7u qu\u1ea3 gi\u1eefa c\u00e1c khu v\u1ef1c n\u00e0y. N\u00f3 l\u00e0m nh\u01b0 v\u1eady b\u1eb1ng c\u00e1ch duy tr\u00ec th\u00f4ng tin \u0111\u1ecbnh tuy\u1ebfn cho t\u1eebng khu v\u1ef1c \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i v\u00e0 trao \u0111\u1ed5i th\u00f4ng tin c\u1eadp nh\u1eadt \u0111\u1ecbnh tuy\u1ebfn v\u1edbi c\u00e1c b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn l\u00e2n c\u1eadn.<\/p>\n<p>ABR s\u1eed d\u1ee5ng thu\u1eadt to\u00e1n \u0111\u1ecbnh tuy\u1ebfn \u0111\u1ec3 t\u00ednh to\u00e1n \u0111\u01b0\u1eddng d\u1eabn t\u1ed1t nh\u1ea5t cho c\u00e1c g\u00f3i d\u1eef li\u1ec7u \u0111i qua gi\u1eefa c\u00e1c khu v\u1ef1c. N\u00f3 duy tr\u00ec m\u1ed9t c\u00e1i nh\u00ecn \u0111\u1ea7y \u0111\u1ee7 v\u1ec1 c\u1ea5u tr\u00fac li\u00ean k\u1ebft c\u1ee7a m\u1ea1ng v\u00e0 s\u1eed d\u1ee5ng th\u00f4ng tin n\u00e0y \u0111\u1ec3 \u0111\u01b0a ra quy\u1ebft \u0111\u1ecbnh chuy\u1ec3n ti\u1ebfp s\u00e1ng su\u1ed1t. Ngo\u00e0i ra, ABR \u0111\u00f3ng vai tr\u00f2 duy tr\u00ec s\u1ef1 \u1ed5n \u0111\u1ecbnh c\u1ee7a m\u1ea1ng v\u00ec n\u00f3 c\u00f3 th\u1ec3 c\u00e1ch ly c\u00e1c l\u1ed7i m\u1ea1ng ti\u1ec1m \u1ea9n trong t\u1eebng khu v\u1ef1c ri\u00eang l\u1ebb v\u00e0 ng\u0103n ch\u00fang \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn to\u00e0n b\u1ed9 m\u1ea1ng.<\/p>\n<h2>C\u1ea5u tr\u00fac b\u00ean trong c\u1ee7a B\u1ed9 \u0111\u1ecbnh tuy\u1ebfn bi\u00ean gi\u1edbi khu v\u1ef1c: C\u00e1ch th\u1ee9c ho\u1ea1t \u0111\u1ed9ng<\/h2>\n<p>B\u1ed9 \u0111\u1ecbnh tuy\u1ebfn bi\u00ean gi\u1edbi khu v\u1ef1c ho\u1ea1t \u0111\u1ed9ng \u1edf ranh gi\u1edbi c\u1ee7a hai ho\u1eb7c nhi\u1ec1u khu v\u1ef1c trong m\u1ea1ng. N\u00f3 th\u01b0\u1eddng \u0111\u01b0\u1ee3c trang b\u1ecb nhi\u1ec1u giao di\u1ec7n m\u1ea1ng, m\u1ed7i giao di\u1ec7n \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i v\u1edbi m\u1ed9t khu v\u1ef1c kh\u00e1c nhau. C\u1ea5u tr\u00fac b\u00ean trong c\u1ee7a ABR bao g\u1ed3m c\u00e1c th\u00e0nh ph\u1ea7n ch\u00ednh sau:<\/p>\n<ol>\n<li>\n<p><strong>B\u1ea3ng \u0111\u1ecbnh tuy\u1ebfn<\/strong>: B\u1ea3ng \u0111\u1ecbnh tuy\u1ebfn ch\u1ee9a th\u00f4ng tin v\u1ec1 c\u1ea5u tr\u00fac li\u00ean k\u1ebft c\u1ee7a m\u1ea1ng v\u00e0 c\u00e1c \u0111\u01b0\u1eddng d\u1eabn t\u1ed1t nh\u1ea5t \u0111\u1ec3 \u0111\u1ebfn \u0111\u00edch \u1edf c\u00e1c khu v\u1ef1c kh\u00e1c nhau. ABR c\u1eadp nh\u1eadt \u0111\u1ed9ng b\u1ea3ng n\u00e0y d\u1ef1a tr\u00ean c\u00e1c c\u1eadp nh\u1eadt \u0111\u1ecbnh tuy\u1ebfn nh\u1eadn \u0111\u01b0\u1ee3c.<\/p>\n<\/li>\n<li>\n<p><strong>Thu\u1eadt to\u00e1n \u0111\u1ecbnh tuy\u1ebfn<\/strong>: ABR s\u1eed d\u1ee5ng nhi\u1ec1u thu\u1eadt to\u00e1n \u0111\u1ecbnh tuy\u1ebfn kh\u00e1c nhau, ch\u1eb3ng h\u1ea1n nh\u01b0 thu\u1eadt to\u00e1n \u0110\u01b0\u1eddng d\u1eabn ng\u1eafn nh\u1ea5t \u0111\u1ea7u ti\u00ean (SPF) ho\u1eb7c Dijkstra, \u0111\u1ec3 t\u00ednh to\u00e1n \u0111\u01b0\u1eddng d\u1eabn t\u1ed1i \u01b0u cho c\u00e1c g\u00f3i d\u1eef li\u1ec7u tr\u00ean c\u00e1c khu v\u1ef1c.<\/p>\n<\/li>\n<li>\n<p><strong>C\u01a1 s\u1edf d\u1eef li\u1ec7u tr\u1ea1ng th\u00e1i li\u00ean k\u1ebft khu v\u1ef1c<\/strong>: M\u1ed7i ABR duy tr\u00ec C\u01a1 s\u1edf d\u1eef li\u1ec7u tr\u1ea1ng th\u00e1i li\u00ean k\u1ebft khu v\u1ef1c (LSDB) l\u01b0u tr\u1eef th\u00f4ng tin chi ti\u1ebft v\u1ec1 c\u1ea5u tr\u00fac li\u00ean k\u1ebft v\u00e0 tr\u1ea1ng th\u00e1i c\u1ee7a khu v\u1ef1c \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i. LSDB \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong t\u00ednh to\u00e1n SPF.<\/p>\n<\/li>\n<li>\n<p><strong>Giao di\u1ec7n<\/strong>: Giao di\u1ec7n c\u1ee7a ABR k\u1ebft n\u1ed1i v\u1edbi c\u00e1c khu v\u1ef1c kh\u00e1c nhau, cho ph\u00e9p trao \u0111\u1ed5i th\u00f4ng tin \u0111\u1ecbnh tuy\u1ebfn v\u00e0 g\u00f3i d\u1eef li\u1ec7u gi\u1eefa c\u00e1c khu v\u1ef1c.<\/p>\n<\/li>\n<\/ol>\n<h2>Ph\u00e2n t\u00edch c\u00e1c t\u00ednh n\u0103ng ch\u00ednh c\u1ee7a Area Border Router<\/h2>\n<p>B\u1ed9 \u0111\u1ecbnh tuy\u1ebfn bi\u00ean gi\u1edbi khu v\u1ef1c cung c\u1ea5p m\u1ed9t s\u1ed1 t\u00ednh n\u0103ng ch\u00ednh khi\u1ebfn n\u00f3 tr\u1edf th\u00e0nh m\u1ed9t ph\u1ea7n kh\u00f4ng th\u1ec3 thi\u1ebfu c\u1ee7a c\u00e1c m\u1ea1ng quy m\u00f4 l\u1edbn:<\/p>\n<ol>\n<li>\n<p><strong>\u0110\u1ecbnh tuy\u1ebfn ph\u00e2n c\u1ea5p<\/strong>: ABR t\u1ea1o \u0111i\u1ec1u ki\u1ec7n thu\u1eadn l\u1ee3i cho vi\u1ec7c \u0111\u1ecbnh tuy\u1ebfn theo c\u1ea5p b\u1eadc b\u1eb1ng c\u00e1ch chia m\u1ea1ng th\u00e0nh c\u00e1c khu v\u1ef1c. C\u1ea5u tr\u00fac ph\u00e2n c\u1ea5p n\u00e0y c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng m\u1ea1ng v\u00e0 gi\u1ea3m chi ph\u00ed b\u1ea3o tr\u00ec b\u1ea3ng \u0111\u1ecbnh tuy\u1ebfn.<\/p>\n<\/li>\n<li>\n<p><strong>Truy\u1ec1n d\u1eef li\u1ec7u hi\u1ec7u qu\u1ea3<\/strong>: B\u1eb1ng c\u00e1ch \u0111\u1ecbnh h\u01b0\u1edbng c\u00e1c g\u00f3i d\u1eef li\u1ec7u m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3 gi\u1eefa c\u00e1c khu v\u1ef1c, ABR t\u1ed1i \u01b0u h\u00f3a vi\u1ec7c truy\u1ec1n d\u1eef li\u1ec7u v\u00e0 gi\u1ea3m thi\u1ec3u \u0111\u1ed9 tr\u1ec5.<\/p>\n<\/li>\n<li>\n<p><strong>C\u00e1ch ly l\u1ed7i<\/strong>: Kh\u1ea3 n\u0103ng c\u1ee7a ABR ng\u0103n ch\u1eb7n c\u00e1c l\u1ed7i m\u1ea1ng trong c\u00e1c khu v\u1ef1c c\u1ee5 th\u1ec3 s\u1ebd ng\u0103n ch\u1eb7n s\u1ef1 l\u00e2y lan c\u1ee7a l\u1ed7i v\u00e0 n\u00e2ng cao t\u00ednh \u1ed5n \u0111\u1ecbnh c\u1ee7a m\u1ea1ng.<\/p>\n<\/li>\n<li>\n<p><strong>K\u1ef9 thu\u1eadt giao th\u00f4ng<\/strong>: ABR c\u00f3 th\u1ec3 tri\u1ec3n khai c\u00e1c ch\u00ednh s\u00e1ch k\u1ef9 thu\u1eadt l\u01b0u l\u01b0\u1ee3ng \u0111\u1ec3 ki\u1ec3m so\u00e1t lu\u1ed3ng d\u1eef li\u1ec7u v\u00e0 t\u1ed1i \u01b0u h\u00f3a hi\u1ec7u su\u1ea5t m\u1ea1ng.<\/p>\n<\/li>\n<\/ol>\n<h2>C\u00e1c lo\u1ea1i Router bi\u00ean gi\u1edbi khu v\u1ef1c<\/h2>\n<p>C\u00e1c lo\u1ea1i B\u1ed9 \u0111\u1ecbnh tuy\u1ebfn bi\u00ean gi\u1edbi khu v\u1ef1c c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c ph\u00e2n lo\u1ea1i d\u1ef1a tr\u00ean c\u00e1c giao th\u1ee9c \u0111\u1ecbnh tuy\u1ebfn m\u00e0 ch\u00fang h\u1ed7 tr\u1ee3 v\u00e0 ph\u1ea1m vi k\u1ebft n\u1ed1i c\u1ee7a ch\u00fang. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 c\u00e1c lo\u1ea1i ch\u00ednh:<\/p>\n<h3>D\u1ef1a tr\u00ean giao th\u1ee9c \u0111\u1ecbnh tuy\u1ebfn:<\/h3>\n<ul>\n<li>OSPF ABR: B\u1ed9 \u0111\u1ecbnh tuy\u1ebfn bi\u00ean gi\u1edbi khu v\u1ef1c h\u1ed7 tr\u1ee3 giao th\u1ee9c \u0111\u1ecbnh tuy\u1ebfn Open Shortest Path First (OSPF).<\/li>\n<li>IS-IS ABR: B\u1ed9 \u0111\u1ecbnh tuy\u1ebfn bi\u00ean gi\u1edbi khu v\u1ef1c ho\u1ea1t \u0111\u1ed9ng b\u1eb1ng giao th\u1ee9c \u0111\u1ecbnh tuy\u1ebfn t\u1eeb H\u1ec7 th\u1ed1ng trung gian \u0111\u1ebfn H\u1ec7 th\u1ed1ng trung gian (IS-IS).<\/li>\n<\/ul>\n<h3>D\u1ef1a tr\u00ean ph\u1ea1m vi k\u1ebft n\u1ed1i:<\/h3>\n<ul>\n<li>ABR li\u00ean khu v\u1ef1c: K\u1ebft n\u1ed1i c\u00e1c khu v\u1ef1c trong c\u00f9ng m\u1ed9t H\u1ec7 th\u1ed1ng t\u1ef1 tr\u1ecb (AS).<\/li>\n<li>Inter-AS ABR: K\u1ebft n\u1ed1i c\u00e1c H\u1ec7 th\u1ed1ng t\u1ef1 tr\u1ecb kh\u00e1c nhau, t\u1ea1o \u0111i\u1ec1u ki\u1ec7n li\u00ean l\u1ea1c gi\u1eefa c\u00e1c m\u1ea1ng ri\u00eang bi\u1ec7t.<\/li>\n<\/ul>\n<p>B\u1ea3ng: So s\u00e1nh c\u00e1c lo\u1ea1i ABR kh\u00e1c nhau<\/p>\n<table>\n<thead>\n<tr>\n<th>Lo\u1ea1i ABR<\/th>\n<th>Giao th\u1ee9c \u0111\u1ecbnh tuy\u1ebfn<\/th>\n<th>Ph\u1ea1m vi k\u1ebft n\u1ed1i<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>OSPF ABR<\/td>\n<td>OSPF<\/td>\n<td>Li\u00ean khu v\u1ef1c<\/td>\n<\/tr>\n<tr>\n<td>IS-IS ABR<\/td>\n<td>IS-IS<\/td>\n<td>Li\u00ean khu v\u1ef1c<\/td>\n<\/tr>\n<tr>\n<td>ABR li\u00ean AS<\/td>\n<td>OSPF\/IS-IS<\/td>\n<td>Li\u00ean AS<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>C\u00e1c c\u00e1ch s\u1eed d\u1ee5ng B\u1ed9 \u0111\u1ecbnh tuy\u1ebfn bi\u00ean gi\u1edbi khu v\u1ef1c, c\u00e1c v\u1ea5n \u0111\u1ec1 v\u00e0 gi\u1ea3i ph\u00e1p li\u00ean quan \u0111\u1ebfn vi\u1ec7c s\u1eed d\u1ee5ng<\/h2>\n<p>B\u1ed9 \u0111\u1ecbnh tuy\u1ebfn bi\u00ean gi\u1edbi khu v\u1ef1c \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong nhi\u1ec1u t\u00ecnh hu\u1ed1ng kh\u00e1c nhau, \u0111\u1eb7c bi\u1ec7t l\u00e0 trong c\u00e1c m\u1ea1ng quy m\u00f4 l\u1edbn v\u00e0 Internet. M\u1ed9t s\u1ed1 tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng ph\u1ed5 bi\u1ebfn bao g\u1ed3m:<\/p>\n<ol>\n<li>\n<p><strong>Nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 Internet (ISP)<\/strong>: ISP s\u1eed d\u1ee5ng ABR \u0111\u1ec3 k\u1ebft n\u1ed1i c\u00e1c khu v\u1ef1c m\u1ea1ng kh\u00e1c nhau v\u00e0 qu\u1ea3n l\u00fd l\u01b0u l\u01b0\u1ee3ng tr\u00ean c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng c\u1ee7a h\u1ecd.<\/p>\n<\/li>\n<li>\n<p><strong>M\u1ea1ng doanh nghi\u1ec7p<\/strong>: C\u00e1c t\u1ed5 ch\u1ee9c l\u1edbn c\u00f3 ki\u1ebfn tr\u00fac m\u1ea1ng ph\u1ee9c t\u1ea1p s\u1eed d\u1ee5ng ABR \u0111\u1ec3 c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t m\u1ea1ng v\u00e0 qu\u1ea3n l\u00fd l\u01b0u l\u01b0\u1ee3ng n\u1ed9i b\u1ed9.<\/p>\n<\/li>\n<li>\n<p><strong>M\u1ea1ng m\u00e1y ch\u1ee7 proxy<\/strong>: C\u00e1c nh\u00e0 cung c\u1ea5p m\u00e1y ch\u1ee7 proxy nh\u01b0 OneProxy c\u00f3 th\u1ec3 h\u01b0\u1edfng l\u1ee3i t\u1eeb ABR \u0111\u1ec3 t\u1ed1i \u01b0u h\u00f3a lu\u1ed3ng d\u1eef li\u1ec7u v\u00e0 x\u1eed l\u00fd hi\u1ec7u qu\u1ea3 c\u00e1c y\u00eau c\u1ea7u t\u1eeb c\u00e1c khu v\u1ef1c kh\u00e1c nhau.<\/p>\n<\/li>\n<\/ol>\n<h3>V\u1ea5n \u0111\u1ec1 v\u00e0 gi\u1ea3i ph\u00e1p:<\/h3>\n<ol>\n<li>\n<p><strong>T\u1eafc ngh\u1ebdn m\u1ea1ng<\/strong>: L\u01b0u l\u01b0\u1ee3ng giao th\u00f4ng cao gi\u1eefa c\u00e1c khu v\u1ef1c c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn t\u1eafc ngh\u1ebdn. C\u00e1c gi\u1ea3i ph\u00e1p bao g\u1ed3m k\u1ef9 thu\u1eadt k\u1ef9 thu\u1eadt l\u01b0u l\u01b0\u1ee3ng v\u00e0 tri\u1ec3n khai QoS.<\/p>\n<\/li>\n<li>\n<p><strong>\u0110\u1ecbnh tuy\u1ebfn kh\u00f4ng \u1ed5n \u0111\u1ecbnh<\/strong>: Nh\u1eefng thay \u0111\u1ed5i th\u01b0\u1eddng xuy\u00ean trong m\u1ea1ng c\u00f3 th\u1ec3 g\u00e2y ra t\u00ecnh tr\u1ea1ng m\u1ea5t \u1ed5n \u0111\u1ecbnh \u0111\u1ecbnh tuy\u1ebfn. Thi\u1ebft k\u1ebf m\u1ea1ng c\u1ea9n th\u1eadn v\u00e0 t\u00f3m t\u1eaft tuy\u1ebfn \u0111\u01b0\u1eddng c\u00f3 th\u1ec3 gi\u1ea3m thi\u1ec3u v\u1ea5n \u0111\u1ec1 n\u00e0y.<\/p>\n<\/li>\n<li>\n<p><strong>M\u1ed1i quan t\u00e2m v\u1ec1 b\u1ea3o m\u1eadt<\/strong>: K\u1ebft n\u1ed1i c\u00e1c khu v\u1ef1c kh\u00e1c nhau l\u00e0m t\u0103ng b\u1ec1 m\u1eb7t t\u1ea5n c\u00f4ng. Vi\u1ec7c th\u1ef1c hi\u1ec7n c\u00e1c bi\u1ec7n ph\u00e1p b\u1ea3o m\u1eadt m\u1ea1nh m\u1ebd v\u00e0 ki\u1ec3m so\u00e1t truy c\u1eadp l\u00e0 r\u1ea5t quan tr\u1ecdng.<\/p>\n<\/li>\n<\/ol>\n<h2>C\u00e1c \u0111\u1eb7c \u0111i\u1ec3m ch\u00ednh v\u00e0 nh\u1eefng so s\u00e1nh kh\u00e1c v\u1edbi c\u00e1c thu\u1eadt ng\u1eef t\u01b0\u01a1ng t\u1ef1<\/h2>\n<p>B\u1ed9 \u0111\u1ecbnh tuy\u1ebfn bi\u00ean gi\u1edbi khu v\u1ef1c c\u00f3 m\u1ed9t s\u1ed1 \u0111i\u1ec3m t\u01b0\u01a1ng \u0111\u1ed3ng v\u1edbi c\u00e1c thi\u1ebft b\u1ecb m\u1ea1ng kh\u00e1c nh\u01b0ng s\u1edf h\u1eefu nh\u1eefng \u0111\u1eb7c \u0111i\u1ec3m \u0111\u1ed9c \u0111\u00e1o khi\u1ebfn n\u00f3 tr\u1edf n\u00ean kh\u00e1c bi\u1ec7t:<\/p>\n<ul>\n<li>\n<p><strong>B\u1ed9 \u0111\u1ecbnh tuy\u1ebfn so v\u1edbi ABR<\/strong>: B\u1ed9 \u0111\u1ecbnh tuy\u1ebfn ti\u00eau chu\u1ea9n k\u1ebft n\u1ed1i c\u00e1c m\u1ea1ng \u1edf c\u1ea5p \u0111\u1ed9 th\u1ea5p h\u01a1n, trong khi ABR t\u1eadp trung v\u00e0o vi\u1ec7c k\u1ebft n\u1ed1i c\u00e1c khu v\u1ef1c trong m\u1ea1ng.<\/p>\n<\/li>\n<li>\n<p><strong>ABR so v\u1edbi ASBR<\/strong>: B\u1ed9 \u0111\u1ecbnh tuy\u1ebfn bi\u00ean gi\u1edbi h\u1ec7 th\u1ed1ng t\u1ef1 tr\u1ecb (ASBR) k\u1ebft n\u1ed1i c\u00e1c H\u1ec7 th\u1ed1ng t\u1ef1 tr\u1ecb kh\u00e1c nhau, trong khi ABR t\u1eadp trung v\u00e0o vi\u1ec7c k\u1ebft n\u1ed1i c\u00e1c khu v\u1ef1c trong c\u00f9ng m\u1ed9t AS.<\/p>\n<\/li>\n<\/ul>\n<p>B\u1ea3ng: ABR so v\u1edbi ASBR<\/p>\n<table>\n<thead>\n<tr>\n<th>\u0111\u1eb7c tr\u01b0ng<\/th>\n<th>ABR<\/th>\n<th>ASBR<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>K\u1ebft n\u1ed1i<\/td>\n<td>Trong c\u00f9ng m\u1ed9t AS<\/td>\n<td>Gi\u1eefa c\u00e1c AS kh\u00e1c nhau<\/td>\n<\/tr>\n<tr>\n<td>M\u1ee5c \u0111\u00edch<\/td>\n<td>K\u1ebft n\u1ed1i khu v\u1ef1c<\/td>\n<td>K\u1ebft n\u1ed1i h\u1ec7 th\u1ed1ng t\u1ef1 tr\u1ecb<\/td>\n<\/tr>\n<tr>\n<td>Giao th\u1ee9c \u0111\u1ecbnh tuy\u1ebfn<\/td>\n<td>OSPF, IS-IS<\/td>\n<td>BGP, OSPF, IS-IS<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Quan \u0111i\u1ec3m v\u00e0 c\u00f4ng ngh\u1ec7 c\u1ee7a t\u01b0\u01a1ng lai li\u00ean quan \u0111\u1ebfn B\u1ed9 \u0111\u1ecbnh tuy\u1ebfn bi\u00ean gi\u1edbi khu v\u1ef1c<\/h2>\n<p>Khi c\u00e1c m\u1ea1ng ti\u1ebfp t\u1ee5c ph\u00e1t tri\u1ec3n v\u00e0 \u0111\u00f2i h\u1ecfi hi\u1ec7u su\u1ea5t c\u0169ng nh\u01b0 kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng cao h\u01a1n, B\u1ed9 \u0111\u1ecbnh tuy\u1ebfn bi\u00ean gi\u1edbi khu v\u1ef1c c\u0169ng s\u1ebd tr\u1ea3i qua nh\u1eefng c\u1ea3i ti\u1ebfn. M\u1ed9t s\u1ed1 quan \u0111i\u1ec3m v\u00e0 c\u00f4ng ngh\u1ec7 quan tr\u1ecdng trong t\u01b0\u01a1ng lai bao g\u1ed3m:<\/p>\n<ol>\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 c\u00e1c ki\u1ebfn tr\u00fac m\u1ea1ng c\u00f3 th\u1ec3 l\u1eadp tr\u00ecnh v\u00e0 linh ho\u1ea1t h\u01a1n, c\u00f3 kh\u1ea3 n\u0103ng d\u1eabn \u0111\u1ebfn c\u1ea3i thi\u1ec7n vi\u1ec7c qu\u1ea3n l\u00fd v\u00e0 t\u1ef1 \u0111\u1ed9ng h\u00f3a ABR.<\/p>\n<\/li>\n<li>\n<p><strong>\u00c1p d\u1ee5ng IPv6<\/strong>: Vi\u1ec7c chuy\u1ec3n \u0111\u1ed5i sang IPv6 s\u1ebd t\u00e1c \u0111\u1ed9ng \u0111\u1ebfn vi\u1ec7c thi\u1ebft k\u1ebf v\u00e0 tri\u1ec3n khai ABR, \u0111\u1ea3m b\u1ea3o li\u00ean l\u1ea1c th\u00f4ng su\u1ed1t tr\u00ean c\u1ea3 m\u1ea1ng IPv4 v\u00e0 IPv6.<\/p>\n<\/li>\n<li>\n<p><strong>C\u1ea3i ti\u1ebfn k\u1ef9 thu\u1eadt giao th\u00f4ng<\/strong>: Nh\u1eefng ti\u1ebfn b\u1ed9 trong k\u1ef9 thu\u1eadt k\u1ef9 thu\u1eadt l\u01b0u l\u01b0\u1ee3ng s\u1ebd cho ph\u00e9p ABR qu\u1ea3n l\u00fd l\u01b0u l\u01b0\u1ee3ng m\u1ea1ng t\u1ed1t h\u01a1n v\u00e0 t\u1ed1i \u01b0u h\u00f3a lu\u1ed3ng d\u1eef li\u1ec7u.<\/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 B\u1ed9 \u0111\u1ecbnh tuy\u1ebfn bi\u00ean gi\u1edbi khu v\u1ef1c<\/h2>\n<p>M\u00e1y ch\u1ee7 proxy v\u00e0 B\u1ed9 \u0111\u1ecbnh tuy\u1ebfn bi\u00ean gi\u1edbi khu v\u1ef1c c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c k\u1ebft h\u1ee3p m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3 \u0111\u1ec3 n\u00e2ng cao hi\u1ec7u su\u1ea5t v\u00e0 t\u00ednh b\u1ea3o m\u1eadt c\u1ee7a m\u1ea1ng proxy. B\u1eb1ng c\u00e1ch tri\u1ec3n khai ABR m\u1ed9t c\u00e1ch chi\u1ebfn l\u01b0\u1ee3c, c\u00e1c nh\u00e0 cung c\u1ea5p proxy nh\u01b0 OneProxy c\u00f3 th\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c nh\u1eefng l\u1ee3i \u00edch sau:<\/p>\n<ol>\n<li>\n<p><strong>C\u00e2n b\u1eb1ng t\u1ea3i<\/strong>: ABR c\u00f3 th\u1ec3 ph\u00e2n ph\u1ed1i c\u00e1c y\u00eau c\u1ea7u proxy \u0111\u1ebfn tr\u00ean nhi\u1ec1u m\u00e1y ch\u1ee7 proxy, \u0111\u1ea3m b\u1ea3o c\u00e2n b\u1eb1ng t\u1ea3i v\u00e0 tr\u00e1nh t\u1eafc ngh\u1ebdn.<\/p>\n<\/li>\n<li>\n<p><strong>Gi\u1ea3m \u0111\u1ed9 tr\u1ec5<\/strong>: B\u1eb1ng c\u00e1ch t\u1ed1i \u01b0u h\u00f3a vi\u1ec7c \u0111\u1ecbnh tuy\u1ebfn c\u00e1c y\u00eau c\u1ea7u proxy gi\u1eefa c\u00e1c khu v\u1ef1c kh\u00e1c nhau, ABR c\u00f3 th\u1ec3 gi\u1ea3m thi\u1ec3u \u0111\u1ed9 tr\u1ec5 v\u00e0 c\u1ea3i thi\u1ec7n tr\u1ea3i nghi\u1ec7m t\u1ed5ng th\u1ec3 c\u1ee7a ng\u01b0\u1eddi d\u00f9ng.<\/p>\n<\/li>\n<li>\n<p><strong>B\u1ea3o m\u1eadt v\u00e0 \u1ea9n danh<\/strong>: ABR c\u00f3 th\u1ec3 th\u1ef1c thi c\u00e1c ch\u00ednh s\u00e1ch b\u1ea3o m\u1eadt v\u00e0 \u1ea9n danh l\u01b0u l\u01b0\u1ee3ng truy c\u1eadp c\u1ee7a ng\u01b0\u1eddi d\u00f9ng trong m\u1ea1ng proxy, t\u0103ng c\u01b0\u1eddng b\u1ea3o v\u1ec7 v\u00e0 quy\u1ec1n ri\u00eang t\u01b0 c\u1ee7a ng\u01b0\u1eddi d\u00f9ng.<\/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 chuy\u00ean s\u00e2u v\u1ec1 B\u1ed9 \u0111\u1ecbnh tuy\u1ebfn bi\u00ean gi\u1edbi khu v\u1ef1c v\u00e0 c\u00e1c ch\u1ee7 \u0111\u1ec1 m\u1ea1ng li\u00ean quan, b\u1ea1n c\u00f3 th\u1ec3 kh\u00e1m ph\u00e1 c\u00e1c t\u00e0i nguy\u00ean sau:<\/p>\n<ol>\n<li><a href=\"https:\/\/tools.ietf.org\/html\/rfc1142\" target=\"_new\" rel=\"noopener nofollow\">IETF RFC 1142: Giao th\u1ee9c \u0111\u1ecbnh tuy\u1ebfn n\u1ed9i mi\u1ec1n OSI IS-IS<\/a><\/li>\n<li><a href=\"https:\/\/www.cisco.com\/c\/en\/us\/support\/docs\/ip\/open-shortest-path-first-ospf\/7039-1.html\" target=\"_new\" rel=\"noopener nofollow\">Cisco: OSPF \u2013 M\u1edf \u0111\u01b0\u1eddng d\u1eabn ng\u1eafn nh\u1ea5t tr\u01b0\u1edbc<\/a><\/li>\n<li><a href=\"https:\/\/www.juniper.net\/documentation\/us\/en\/software\/junos\/igp-routes-protocols\/topics\/topic-map\/isis-protocol.html\" target=\"_new\" rel=\"noopener nofollow\">Juniper Networks: IS-IS (H\u1ec7 th\u1ed1ng trung gian \u0111\u1ebfn h\u1ec7 th\u1ed1ng trung gian)<\/a><\/li>\n<\/ol>\n<p>T\u00f3m l\u1ea1i, B\u1ed9 \u0111\u1ecbnh tuy\u1ebfn bi\u00ean gi\u1edbi khu v\u1ef1c l\u00e0 m\u1ed9t th\u00e0nh ph\u1ea7n quan tr\u1ecdng trong m\u1ea1ng m\u00e1y t\u00ednh hi\u1ec7n \u0111\u1ea1i, cung c\u1ea5p k\u1ebft n\u1ed1i hi\u1ec7u qu\u1ea3 gi\u1eefa c\u00e1c khu v\u1ef1c kh\u00e1c nhau. \u0110\u1ed1i v\u1edbi c\u00e1c nh\u00e0 cung c\u1ea5p m\u00e1y ch\u1ee7 proxy nh\u01b0 OneProxy, vi\u1ec7c t\u00edch h\u1ee3p ABR c\u00f3 th\u1ec3 gi\u00fap c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t, t\u0103ng c\u01b0\u1eddng b\u1ea3o m\u1eadt v\u00e0 tr\u1ea3i nghi\u1ec7m ng\u01b0\u1eddi d\u00f9ng t\u1ed1t h\u01a1n. Khi c\u00e1c m\u1ea1ng ti\u1ebfp t\u1ee5c ph\u00e1t tri\u1ec3n, ABR d\u1ef1 ki\u1ebfn s\u1ebd th\u00edch \u1ee9ng v\u00e0 v\u1eabn l\u00e0 m\u1ed9t y\u1ebfu t\u1ed1 c\u01a1 b\u1ea3n c\u1ee7a c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng m\u1ea1ng quy m\u00f4 l\u1edbn.<\/p>","protected":false},"featured_media":475675,"menu_order":0,"template":"","meta":{"_acf_changed":false,"content-type":"","inline_featured_image":false,"footnotes":""},"class_list":["post-475905","wiki","type-wiki","status-publish","has-post-thumbnail","hentry"],"acf":{"faq_title":"Frequently Asked Questions about <mark>Area Border Router: Enhancing Proxy Server Networks<\/mark>","faq_items":[{"question":"What is the Area Border Router (ABR)?","answer":"<p>The Area Border Router (ABR) is a crucial component of computer networks that serves as a link between different routing domains or areas within a network. It efficiently manages and directs data packets between these areas, ensuring seamless communication and data transmission.<\/p>"},{"question":"How did the concept of ABR originate?","answer":"<p>The concept of the Area Border Router emerged with the development of computer networking in the 1960s and 1970s. It was first mentioned in the early 1980s when the Internet Engineering Task Force (IETF) standardized the Intermediate System to Intermediate System (IS-IS) routing protocol, introducing the idea of \"areas\" and \"level-1\" and \"level-2\" routing domains.<\/p>"},{"question":"What are the key features of ABR?","answer":"<p>The Area Border Router offers several key features, including hierarchical routing, efficient data transfer, fault isolation, and traffic engineering capabilities. These features enhance network scalability, stability, and performance.<\/p>"},{"question":"How does the ABR work internally?","answer":"<p>The ABR operates at the boundary of two or more areas in a network. It maintains a routing table, uses routing algorithms for optimal path calculation, and keeps an Area Link-State Database (LSDB) with detailed area information. Its multiple interfaces connect to different areas, enabling efficient data exchange.<\/p>"},{"question":"What types of ABRs exist?","answer":"<p>ABRs can be classified based on the routing protocols they support and their connectivity scope. Types include OSPF ABR and IS-IS ABR based on routing protocols and Inter-Area ABR and Inter-AS ABR based on connectivity scope.<\/p>"},{"question":"How can ABRs be used with proxy servers?","answer":"<p>Proxy server providers like OneProxy can benefit from ABRs to optimize data flow and efficiently handle requests from different areas. ABRs can ensure load balancing, reduced latency, and enhanced security within the proxy network.<\/p>"},{"question":"What are the future prospects for ABR?","answer":"<p>As networks continue to evolve, ABRs are expected to be further enhanced. Technologies like Software-Defined Networking (SDN) and IPv6 adoption will impact ABR design and deployment, leading to improved network management and performance.<\/p>"},{"question":"What are the common problems related to ABR use?","answer":"<p>Some common issues include network congestion, routing instability, and security concerns. These can be mitigated through traffic engineering techniques, careful network design, and robust security measures.<\/p>"},{"question":"How can ABR benefit Internet Service Providers (ISPs) and Enterprise Networks?","answer":"<p>ISPs and large organizations can leverage ABRs to interconnect different network areas, manage traffic efficiently, and enhance overall network performance and stability.<\/p>"}]},"_links":{"self":[{"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/wiki\/475905","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\/475905\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/media\/475675"}],"wp:attachment":[{"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/media?parent=475905"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}