{"id":479528,"date":"2023-08-09T10:41:31","date_gmt":"2023-08-09T10:41:31","guid":{"rendered":""},"modified":"2023-09-05T11:18:59","modified_gmt":"2023-09-05T11:18:59","slug":"virtual-private-lan-service","status":"publish","type":"wiki","link":"https:\/\/oneproxy.pro\/vn\/wiki\/virtual-private-lan-service\/","title":{"rendered":"D\u1ecbch v\u1ee5 m\u1ea1ng LAN ri\u00eang \u1ea3o"},"content":{"rendered":"<h2>Gi\u1edbi thi\u1ec7u<\/h2>\n<p>D\u1ecbch v\u1ee5 m\u1ea1ng LAN ri\u00eang \u1ea3o (VPLS) l\u00e0 c\u00f4ng ngh\u1ec7 h\u1ed7 tr\u1ee3 vi\u1ec7c m\u1edf r\u1ed9ng M\u1ea1ng c\u1ee5c b\u1ed9 (LAN) qua c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng M\u1ea1ng di\u1ec7n r\u1ed9ng (WAN). N\u00f3 cho ph\u00e9p c\u00e1c trang web ph\u00e2n t\u00e1n v\u1ec1 m\u1eb7t \u0111\u1ecba l\u00fd giao ti\u1ebfp nh\u01b0 th\u1ec3 ch\u00fang l\u00e0 m\u1ed9t ph\u1ea7n c\u1ee7a c\u00f9ng m\u1ed9t m\u1ea1ng LAN, b\u1ea5t k\u1ec3 v\u1ecb tr\u00ed th\u1ef1c t\u1ebf c\u1ee7a ch\u00fang. VPLS th\u01b0\u1eddng \u0111\u01b0\u1ee3c c\u00e1c doanh nghi\u1ec7p, doanh nghi\u1ec7p s\u1eed d\u1ee5ng \u0111\u1ec3 k\u1ebft n\u1ed1i nhi\u1ec1u v\u0103n ph\u00f2ng chi nh\u00e1nh, trung t\u00e2m d\u1eef li\u1ec7u v\u00e0 c\u00e1c \u0111\u1ecba \u0111i\u1ec3m \u1edf xa m\u1ed9t c\u00e1ch an to\u00e0n v\u00e0 hi\u1ec7u qu\u1ea3.<\/p>\n<h2>L\u1ecbch s\u1eed c\u1ee7a d\u1ecbch v\u1ee5 m\u1ea1ng LAN ri\u00eang \u1ea3o<\/h2>\n<p>Kh\u00e1i ni\u1ec7m VPLS c\u00f3 th\u1ec3 b\u1eaft ngu\u1ed3n t\u1eeb cu\u1ed1i nh\u1eefng n\u0103m 1990 khi nhu c\u1ea7u m\u1edf r\u1ed9ng m\u1ea1ng LAN li\u1ec1n m\u1ea1ch tr\u00ean nhi\u1ec1u \u0111\u1ecba \u0111i\u1ec3m tr\u1edf n\u00ean r\u00f5 r\u00e0ng. L\u1ea7n \u0111\u1ea7u ti\u00ean \u0111\u1ec1 c\u1eadp \u0111\u1ebfn c\u00f4ng ngh\u1ec7 n\u00e0y c\u00f3 th\u1ec3 l\u00e0 do m\u1ed9t nh\u00f3m k\u1ef9 s\u01b0 c\u1ee7a m\u1ed9t nh\u00e0 cung c\u1ea5p m\u1ea1ng v\u00e0o \u0111\u1ea7u nh\u1eefng n\u0103m 2000. Vi\u1ec7c tri\u1ec3n khai v\u00e0 ti\u00eau chu\u1ea9n h\u00f3a VPLS b\u1eaft \u0111\u1ea7u c\u00f3 \u0111\u00e0 nh\u01b0 m\u1ed9t s\u1ef1 c\u1ea3i ti\u1ebfn \u0111\u1ed1i v\u1edbi m\u1ea1ng MPLS (Chuy\u1ec3n m\u1ea1ch nh\u00e3n \u0111a giao th\u1ee9c).<\/p>\n<h2>Th\u00f4ng tin chi ti\u1ebft v\u1ec1 d\u1ecbch v\u1ee5 m\u1ea1ng LAN ri\u00eang \u1ea3o<\/h2>\n<p>VPLS ho\u1ea1t \u0111\u1ed9ng b\u1eb1ng c\u00e1ch m\u00f4 ph\u1ecfng c\u00e1c b\u1ed9 chuy\u1ec3n m\u1ea1ch ho\u1eb7c c\u1ea7u n\u1ed1i Ethernet qua m\u1ea1ng MPLS c\u1ee7a nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5. N\u00f3 t\u1ea1o ra m\u1ed9t m\u1ea1ng LAN b\u1eafc c\u1ea7u \u1ea3o, cho ph\u00e9p c\u00e1c khung d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c chuy\u1ec3n ti\u1ebfp gi\u1eefa c\u00e1c trang web kh\u00e1c nhau m\u1ed9t c\u00e1ch minh b\u1ea1ch. VPLS d\u1ef1a v\u00e0o c\u01a1 ch\u1ebf h\u1ecdc v\u00e0 chuy\u1ec3n ti\u1ebfp \u0111\u1ecba ch\u1ec9 MAC \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o d\u1eef li\u1ec7u \u0111\u1ebfn \u0111\u00fang \u0111\u00edch.<\/p>\n<h2>C\u1ea5u tr\u00fac b\u00ean trong c\u1ee7a d\u1ecbch v\u1ee5 m\u1ea1ng LAN ri\u00eang \u1ea3o<\/h2>\n<p>VPLS ho\u1ea1t \u0111\u1ed9ng \u1edf l\u1edbp li\u00ean k\u1ebft d\u1eef li\u1ec7u (L\u1edbp 2) c\u1ee7a m\u00f4 h\u00ecnh OSI, cung c\u1ea5p tr\u1ea3i nghi\u1ec7m k\u1ebft n\u1ed1i Ethernet li\u1ec1n m\u1ea1ch gi\u1eefa c\u00e1c \u0111\u1ecba \u0111i\u1ec3m \u1edf xa. Th\u00e0nh ph\u1ea7n c\u1ed1t l\u00f5i c\u1ee7a VPLS l\u00e0 c\u00e1c b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn Provider Edge (PE), ch\u1ecbu tr\u00e1ch nhi\u1ec7m \u0111\u00f3ng g\u00f3i v\u00e0 chuy\u1ec3n ti\u1ebfp c\u00e1c khung Ethernet \u0111\u1ebfn c\u00e1c b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn PE kh\u00e1c qua m\u1ea1ng MPLS.<\/p>\n<p>VPLS ho\u1ea1t \u0111\u1ed9ng nh\u01b0 th\u1ebf n\u00e0o:<\/p>\n<ol>\n<li><strong>\u0110\u00f3ng g\u00f3i khung<\/strong>: Khi khung d\u1eef li\u1ec7u \u0111i v\u00e0o b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn PE, n\u00f3 \u0111\u01b0\u1ee3c \u0111\u00f3ng g\u00f3i b\u1eb1ng nh\u00e3n MPLS.<\/li>\n<li><strong>Chuy\u1ec3n ti\u1ebfp nh\u00e3n<\/strong>: B\u1ed9 \u0111\u1ecbnh tuy\u1ebfn PE chuy\u1ec3n ti\u1ebfp khung \u0111\u01b0\u1ee3c \u0111\u00f3ng g\u00f3i t\u1edbi c\u00e1c b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn PE kh\u00e1c b\u1eb1ng nh\u00e3n MPLS.<\/li>\n<li><strong>X\u00f3a nh\u00e3n<\/strong>: Khi \u0111\u1ebfn b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn PE \u0111\u00edch, nh\u00e3n MPLS s\u1ebd b\u1ecb x\u00f3a v\u00e0 khung Ethernet ban \u0111\u1ea7u \u0111\u01b0\u1ee3c chuy\u1ec3n ti\u1ebfp \u0111\u1ebfn ph\u00e2n \u0111o\u1ea1n LAN d\u1ef1 \u0111\u1ecbnh.<\/li>\n<\/ol>\n<h2>Ph\u00e2n t\u00edch c\u00e1c t\u00ednh n\u0103ng ch\u00ednh c\u1ee7a d\u1ecbch v\u1ee5 m\u1ea1ng LAN ri\u00eang \u1ea3o<\/h2>\n<p>VPLS cung c\u1ea5p m\u1ed9t s\u1ed1 t\u00ednh n\u0103ng ch\u00ednh gi\u00fap n\u00f3 tr\u1edf th\u00e0nh gi\u1ea3i ph\u00e1p \u01b0u ti\u00ean \u0111\u1ec3 k\u1ebft n\u1ed1i nhi\u1ec1u m\u1ea1ng LAN:<\/p>\n<ol>\n<li><strong>Minh b\u1ea1ch<\/strong>: VPLS cung c\u1ea5p k\u1ebft n\u1ed1i LAN-to-LAN li\u1ec1n m\u1ea1ch, l\u00e0m cho n\u00f3 tr\u00f4ng nh\u01b0 th\u1ec3 t\u1ea5t c\u1ea3 c\u00e1c trang web \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i \u0111\u1ec1u l\u00e0 m\u1ed9t ph\u1ea7n c\u1ee7a m\u1ed9t ph\u00e2n \u0111o\u1ea1n LAN duy nh\u1ea5t.<\/li>\n<li><strong>Kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng<\/strong>: N\u00f3 cho ph\u00e9p c\u00e1c doanh nghi\u1ec7p m\u1edf r\u1ed9ng c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng m\u1ea1ng m\u00e0 kh\u00f4ng c\u1ea7n thay \u0111\u1ed5i c\u1ea5u h\u00ecnh m\u1ea1ng LAN c\u01a1 b\u1ea3n.<\/li>\n<li><strong>B\u1ea3o v\u1ec7<\/strong>: VPLS ho\u1ea1t \u0111\u1ed9ng trong m\u1ea1ng MPLS ri\u00eang, \u0111\u1ea3m b\u1ea3o li\u00ean l\u1ea1c an to\u00e0n gi\u1eefa c\u00e1c trang \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i.<\/li>\n<li><strong>Hi\u1ec7u qu\u1ea3<\/strong>: C\u00f4ng ngh\u1ec7 t\u1ed1i \u01b0u h\u00f3a l\u01b0u l\u01b0\u1ee3ng d\u1eef li\u1ec7u, gi\u00fap t\u1eadn d\u1ee5ng b\u0103ng th\u00f4ng t\u1ed1t h\u01a1n v\u00e0 c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t m\u1ea1ng.<\/li>\n<\/ol>\n<h2>C\u00e1c lo\u1ea1i d\u1ecbch v\u1ee5 m\u1ea1ng LAN ri\u00eang \u1ea3o<\/h2>\n<p>VPLS c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c ph\u00e2n lo\u1ea1i th\u00e0nh hai lo\u1ea1i ch\u00ednh d\u1ef1a tr\u00ean m\u00f4 h\u00ecnh tri\u1ec3n khai c\u1ee7a n\u00f3:<\/p>\n<ol>\n<li>\n<p><strong>VPLS d\u1ef1a tr\u00ean t\u00edn hi\u1ec7u<\/strong>: Lo\u1ea1i n\u00e0y d\u1ef1a tr\u00ean c\u00e1c giao th\u1ee9c b\u00e1o hi\u1ec7u ti\u00eau chu\u1ea9n, ch\u1eb3ng h\u1ea1n nh\u01b0 LDP (Giao th\u1ee9c ph\u00e2n ph\u1ed1i nh\u00e3n) ho\u1eb7c BGP (Giao th\u1ee9c c\u1ed5ng bi\u00ean) \u0111\u1ec3 ph\u00e2n ph\u1ed1i nh\u00e3n MPLS.<\/p>\n<\/li>\n<li>\n<p><strong>Martini VPLS<\/strong>: \u0110\u01b0\u1ee3c \u0111\u1eb7t theo t\u00ean ng\u01b0\u1eddi t\u1ea1o ra n\u00f3, Luca Martini, ph\u01b0\u01a1ng ph\u00e1p n\u00e0y s\u1eed d\u1ee5ng k\u1ebft h\u1ee3p LDP \u0111\u1ec3 ph\u00e2n ph\u1ed1i nh\u00e3n v\u00e0 \u0111\u00f3ng g\u00f3i Martini \u0111\u1ec3 chuy\u1ec3n ti\u1ebfp khung.<\/p>\n<\/li>\n<\/ol>\n<p>B\u1ea3ng d\u01b0\u1edbi \u0111\u00e2y t\u00f3m t\u1eaft s\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa hai lo\u1ea1i VPLS:<\/p>\n<table>\n<thead>\n<tr>\n<th><\/th>\n<th>VPLS d\u1ef1a tr\u00ean t\u00edn hi\u1ec7u<\/th>\n<th>Martini VPLS<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Ghi nh\u00e3n<\/td>\n<td>LDP ho\u1eb7c BGP<\/td>\n<td>\u0110\u00f3ng g\u00f3i LDP v\u00e0 Martini<\/td>\n<\/tr>\n<tr>\n<td>Kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng<\/td>\n<td>V\u1eeba ph\u1ea3i<\/td>\n<td>Cao<\/td>\n<\/tr>\n<tr>\n<td>\u0110\u1ed9 ph\u1ee9c t\u1ea1p<\/td>\n<td>Th\u1ea5p<\/td>\n<td>V\u1eeba ph\u1ea3i<\/td>\n<\/tr>\n<tr>\n<td>Giao th\u1ee9c<\/td>\n<td>RFC 4762<\/td>\n<td>RFC 4761, RFC 4762<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>C\u00e1ch s\u1eed d\u1ee5ng d\u1ecbch v\u1ee5 m\u1ea1ng LAN ri\u00eang \u1ea3o, s\u1ef1 c\u1ed1 v\u00e0 gi\u1ea3i ph\u00e1p<\/h2>\n<h3>C\u00e1ch s\u1eed d\u1ee5ng VPLS<\/h3>\n<ol>\n<li>\n<p><strong>K\u1ebft n\u1ed1i c\u00e1c v\u0103n ph\u00f2ng chi nh\u00e1nh<\/strong>: VPLS cho ph\u00e9p c\u00e1c doanh nghi\u1ec7p thi\u1ebft l\u1eadp li\u00ean l\u1ea1c tr\u1ef1c ti\u1ebfp v\u00e0 an to\u00e0n gi\u1eefa c\u00e1c v\u0103n ph\u00f2ng chi nh\u00e1nh c\u1ee7a h\u1ecd, th\u00fac \u0111\u1ea9y s\u1ef1 h\u1ee3p t\u00e1c v\u00e0 chia s\u1ebb d\u1eef li\u1ec7u.<\/p>\n<\/li>\n<li>\n<p><strong>Ph\u1ea7n m\u1edf r\u1ed9ng trung t\u00e2m d\u1eef li\u1ec7u<\/strong>: Doanh nghi\u1ec7p c\u00f3 th\u1ec3 m\u1edf r\u1ed9ng m\u1ea1ng trung t\u00e2m d\u1eef li\u1ec7u c\u1ee7a m\u00ecnh \u0111\u1ebfn c\u00e1c \u0111\u1ecba \u0111i\u1ec3m kh\u1eafc ph\u1ee5c th\u1ea3m h\u1ecda b\u00ean ngo\u00e0i b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng VPLS, \u0111\u1ea3m b\u1ea3o t\u00ednh li\u00ean t\u1ee5c c\u1ee7a ho\u1ea1t \u0111\u1ed9ng kinh doanh trong tr\u01b0\u1eddng h\u1ee3p c\u00f3 s\u1ef1 c\u1ed1.<\/p>\n<\/li>\n<li>\n<p><strong>K\u1ebft n\u1ed1i \u0111\u00e1m m\u00e2y<\/strong>: VPLS t\u1ea1o \u0111i\u1ec1u ki\u1ec7n k\u1ebft n\u1ed1i an to\u00e0n v\u1edbi c\u00e1c nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 \u0111\u00e1m m\u00e2y, cho ph\u00e9p c\u00e1c doanh nghi\u1ec7p truy c\u1eadp v\u00e0 qu\u1ea3n l\u00fd t\u00e0i nguy\u00ean \u0111\u00e1m m\u00e2y nh\u01b0 m\u1ed9t ph\u1ea7n c\u1ee7a m\u1ea1ng LAN c\u1ee7a h\u1ecd.<\/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>\u0110\u1ed9 tr\u1ec5 v\u00e0 b\u0103ng th\u00f4ng<\/strong>: Hi\u1ec7u su\u1ea5t VPLS c\u00f3 th\u1ec3 b\u1ecb \u1ea3nh h\u01b0\u1edfng b\u1edfi \u0111\u1ed9 tr\u1ec5 v\u00e0 b\u0103ng th\u00f4ng h\u1ea1n ch\u1ebf tr\u00ean m\u1ea1ng MPLS. Vi\u1ec7c s\u1eed d\u1ee5ng c\u01a1 ch\u1ebf QoS (Ch\u1ea5t l\u01b0\u1ee3ng d\u1ecbch v\u1ee5) c\u00f3 th\u1ec3 gi\u00fap gi\u1ea3m thi\u1ec3u nh\u1eefng v\u1ea5n \u0111\u1ec1 n\u00e0y.<\/p>\n<\/li>\n<li>\n<p><strong>B\u00e3o ph\u00e1t s\u00f3ng<\/strong>: VPLS cho ph\u00e9p c\u00e1c khung ph\u00e1t s\u00f3ng \u0111\u01b0\u1ee3c truy\u1ec1n \u0111\u1ebfn t\u1ea5t c\u1ea3 c\u00e1c trang web \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i, \u0111i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn c\u00e1c c\u01a1n b\u00e3o ph\u00e1t s\u00f3ng. Vi\u1ec7c th\u1ef1c hi\u1ec7n gi\u1edbi h\u1ea1n t\u1ed1c \u0111\u1ed9 ph\u00e1t s\u00f3ng c\u00f3 th\u1ec3 l\u00e0m gi\u1ea3m b\u1edbt 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>: Trong khi VPLS ho\u1ea1t \u0111\u1ed9ng tr\u00ean m\u1ea1ng MPLS an to\u00e0n, vi\u1ec7c m\u00e3 h\u00f3a b\u1ed5 sung c\u00f3 th\u1ec3 c\u1ea7n thi\u1ebft \u0111\u1ed1i v\u1edbi d\u1eef li\u1ec7u c\u00f3 \u0111\u1ed9 nh\u1ea1y c\u1ea3m cao.<\/p>\n<\/li>\n<\/ol>\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<h3>VPLS so v\u1edbi MPLS VPN<\/h3>\n<p>C\u1ea3 VPLS v\u00e0 MPLS VPN \u0111\u1ec1u cung c\u1ea5p k\u1ebft n\u1ed1i WAN, nh\u01b0ng ch\u00fang kh\u00e1c nhau v\u1ec1 c\u00e1ch ti\u1ebfp c\u1eadn:<\/p>\n<table>\n<thead>\n<tr>\n<th><\/th>\n<th>VPLS<\/th>\n<th>VPN MPLS<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>L\u1edbp ho\u1ea1t \u0111\u1ed9ng<\/td>\n<td>L\u1edbp li\u00ean k\u1ebft d\u1eef li\u1ec7u (L\u1edbp 2)<\/td>\n<td>L\u1edbp m\u1ea1ng (L\u1edbp 3)<\/td>\n<\/tr>\n<tr>\n<td>Ph\u1ea1m vi m\u1ea1ng<\/td>\n<td>M\u1edf r\u1ed9ng m\u1ea1ng LAN<\/td>\n<td>Site-to-Site ho\u1eb7c Site-to-Multiple-Site<\/td>\n<\/tr>\n<tr>\n<td>Giao ti\u1ebfp<\/td>\n<td>C\u1ea7u n\u1ed1i Ethernet<\/td>\n<td>\u0110\u1ecbnh tuy\u1ebfn IP<\/td>\n<\/tr>\n<tr>\n<td>\u0110\u1ed9 ph\u1ee9c t\u1ea1p<\/td>\n<td>V\u1eeba ph\u1ea3i<\/td>\n<td>Cao<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Quan \u0111i\u1ec3m v\u00e0 c\u00f4ng ngh\u1ec7 t\u01b0\u01a1ng lai<\/h2>\n<p>Khi c\u00f4ng ngh\u1ec7 ti\u1ebfn b\u1ed9, VPLS d\u1ef1 ki\u1ebfn s\u1ebd ph\u00e1t tri\u1ec3n h\u01a1n n\u1eefa v\u1edbi nh\u1eefng c\u1ea3i ti\u1ebfn v\u1ec1 kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng v\u00e0 hi\u1ec7u su\u1ea5t. C\u00e1c c\u00f4ng ngh\u1ec7 m\u1edbi n\u1ed5i nh\u01b0 SD-WAN (WAN \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1eb1ng ph\u1ea7n m\u1ec1m) v\u00e0 m\u1ea1ng 5G c\u00f3 th\u1ec3 b\u1ed5 sung cho VPLS v\u00e0 n\u00e2ng cao kh\u1ea3 n\u0103ng c\u1ee7a n\u00f3, cung c\u1ea5p c\u00e1c gi\u1ea3i ph\u00e1p m\u1edf r\u1ed9ng m\u1ea1ng LAN linh ho\u1ea1t v\u00e0 m\u1ea1nh m\u1ebd h\u01a1n n\u1eefa.<\/p>\n<h2>M\u00e1y ch\u1ee7 proxy li\u00ean quan nh\u01b0 th\u1ebf n\u00e0o \u0111\u1ebfn d\u1ecbch v\u1ee5 m\u1ea1ng LAN ri\u00eang \u1ea3o<\/h2>\n<p>M\u00e1y ch\u1ee7 proxy c\u00f3 th\u1ec3 b\u1ed5 sung cho VPLS b\u1eb1ng c\u00e1ch cung c\u1ea5p th\u00eam l\u1edbp b\u1ea3o m\u1eadt v\u00e0 \u1ea9n danh cho ng\u01b0\u1eddi d\u00f9ng truy c\u1eadp v\u00e0o ph\u1ea7n m\u1edf r\u1ed9ng m\u1ea1ng LAN. M\u00e1y ch\u1ee7 proxy c\u00f3 th\u1ec3 ho\u1ea1t \u0111\u1ed9ng nh\u01b0 m\u1ed9t trung gian gi\u1eefa thi\u1ebft b\u1ecb c\u1ee7a ng\u01b0\u1eddi d\u00f9ng v\u00e0 m\u1ea1ng VPLS, che gi\u1ea5u \u0111\u1ecba ch\u1ec9 IP c\u1ee7a ng\u01b0\u1eddi d\u00f9ng v\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 l\u1ecdc n\u1ed9i dung ho\u1eb7c b\u1ed9 nh\u1edb \u0111\u1ec7m.<\/p>\n<h2>Li\u00ean k\u1ebft li\u00ean quan<\/h2>\n<p>\u0110\u1ec3 bi\u1ebft th\u00eam th\u00f4ng tin v\u1ec1 D\u1ecbch v\u1ee5 m\u1ea1ng LAN ri\u00eang \u1ea3o, b\u1ea1n c\u00f3 th\u1ec3 tham kh\u1ea3o c\u00e1c t\u00e0i nguy\u00ean sau:<\/p>\n<ul>\n<li><a href=\"https:\/\/tools.ietf.org\/html\/rfc4761\" target=\"_new\" rel=\"noopener nofollow\">RFC 4761 \u2013 D\u1ecbch v\u1ee5 m\u1ea1ng ri\u00eang \u1ea3o (VPLS) s\u1eed d\u1ee5ng BGP \u0111\u1ec3 t\u1ef1 \u0111\u1ed9ng ph\u00e1t hi\u1ec7n v\u00e0 b\u00e1o hi\u1ec7u<\/a><\/li>\n<li><a href=\"https:\/\/tools.ietf.org\/html\/rfc4762\" target=\"_new\" rel=\"noopener nofollow\">RFC 4762 - D\u1ecbch v\u1ee5 m\u1ea1ng ri\u00eang \u1ea3o (VPLS) s\u1eed d\u1ee5ng t\u00edn hi\u1ec7u giao th\u1ee9c ph\u00e2n ph\u1ed1i nh\u00e3n (LDP)<\/a><\/li>\n<li><a href=\"https:\/\/www.cisco.com\/c\/en\/us\/solutions\/enterprise\/multiprotocol-label-switching-mpls\/index.html\" target=\"_new\" rel=\"noopener nofollow\">MPLS: Chuy\u1ec3n \u0111\u1ed5i nh\u00e3n \u0111a giao th\u1ee9c<\/a><\/li>\n<\/ul>\n<p>T\u00f3m l\u1ea1i, D\u1ecbch v\u1ee5 m\u1ea1ng LAN ri\u00eang \u1ea3o (VPLS) l\u00e0 m\u1ed9t c\u00f4ng ngh\u1ec7 quan tr\u1ecdng d\u00e0nh cho c\u00e1c doanh nghi\u1ec7p v\u00e0 doanh nghi\u1ec7p \u0111ang t\u00ecm c\u00e1ch m\u1edf r\u1ed9ng m\u1ea1ng LAN li\u1ec1n m\u1ea1ch tr\u00ean c\u00e1c \u0111\u1ecba \u0111i\u1ec3m ph\u00e2n t\u00e1n v\u1ec1 m\u1eb7t \u0111\u1ecba l\u00fd. B\u1eb1ng c\u00e1ch cung c\u1ea5p t\u00ednh minh b\u1ea1ch, kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng v\u00e0 b\u1ea3o m\u1eadt, VPLS t\u0103ng c\u01b0\u1eddng k\u1ebft n\u1ed1i m\u1ea1ng v\u00e0 t\u1ea1o \u0111i\u1ec1u ki\u1ec7n li\u00ean l\u1ea1c hi\u1ec7u qu\u1ea3 gi\u1eefa nhi\u1ec1u trang web. Khi c\u00f4ng ngh\u1ec7 ph\u00e1t tri\u1ec3n, VPLS d\u1ef1 ki\u1ebfn s\u1ebd v\u1eabn ph\u00f9 h\u1ee3p v\u00e0 th\u00edch \u1ee9ng v\u1edbi nh\u1eefng ti\u1ebfn b\u1ed9 trong t\u01b0\u01a1ng lai c\u1ee7a c\u00f4ng ngh\u1ec7 m\u1ea1ng.<\/p>","protected":false},"featured_media":479529,"menu_order":0,"template":"","meta":{"_acf_changed":false,"content-type":"","inline_featured_image":false,"footnotes":""},"class_list":["post-479528","wiki","type-wiki","status-publish","has-post-thumbnail","hentry"],"acf":{"faq_title":"Frequently Asked Questions about <mark>Virtual Private LAN Service (VPLS) - Enhancing Network Connectivity<\/mark>","faq_items":[{"question":"What is Virtual Private LAN Service (VPLS)?","answer":"<p>Virtual Private LAN Service (VPLS) is a technology that enables the extension of Local Area Networks (LANs) over a Wide Area Network (WAN) infrastructure. It allows geographically dispersed sites to communicate as if they are part of the same LAN, providing seamless connectivity across multiple locations.<\/p>"},{"question":"How does Virtual Private LAN Service work?","answer":"<p>VPLS operates at the data link layer (Layer 2) of the OSI model. It creates a virtual bridged LAN over a service provider's MPLS network, encapsulating Ethernet frames and forwarding them to other PE routers. Upon reaching the destination PE router, the MPLS labels are removed, and the original Ethernet frame is forwarded to the intended LAN segment.<\/p>"},{"question":"What are the key features of Virtual Private LAN Service?","answer":"<p>VPLS offers several key features, including:<\/p><ul><li><strong>Transparency<\/strong>: VPLS makes multiple LANs appear as a single LAN, simplifying communication between geographically distributed sites.<\/li><li><strong>Scalability<\/strong>: Businesses can expand their network infrastructure without modifying the underlying LAN configuration.<\/li><li><strong>Security<\/strong>: VPLS operates within a private MPLS network, ensuring secure data transmission between connected sites.<\/li><li><strong>Efficiency<\/strong>: The technology optimizes data traffic, improving network performance and bandwidth utilization.<\/li><\/ul>"},{"question":"What types of Virtual Private LAN Service exist?","answer":"<p>There are two main types of VPLS:<\/p><ol><li><strong>Signaling-Based VPLS<\/strong>: Relies on standard signaling protocols like LDP or BGP for MPLS label distribution.<\/li><li><strong>Martini VPLS<\/strong>: Uses a combination of LDP for label distribution and Martini encapsulation for frame forwarding.<\/li><\/ol>"},{"question":"How can Virtual Private LAN Service be used?","answer":"<p>VPLS has various applications, including:<\/p><ul><li><strong>Interconnecting Branch Offices<\/strong>: It allows secure communication between branch offices, fostering collaboration and data sharing.<\/li><li><strong>Data Center Extension<\/strong>: Enterprises can extend their data center networks to off-site disaster recovery locations.<\/li><li><strong>Cloud Connectivity<\/strong>: VPLS facilitates secure connectivity to cloud service providers, integrating cloud resources into the LAN.<\/li><\/ul>"},{"question":"What are some common problems with Virtual Private LAN Service and their solutions?","answer":"<p>Common issues with VPLS include latency, bandwidth limitations, and security concerns. To address these problems:<\/p><ul><li>Employ QoS mechanisms to manage latency and prioritize critical traffic.<\/li><li>Implement broadcast rate limiting to prevent broadcast storms.<\/li><li>Consider additional encryption for highly sensitive data to enhance security.<\/li><\/ul>"},{"question":"How does Virtual Private LAN Service compare to MPLS VPN?","answer":"<p>VPLS and MPLS VPN differ in their approach:<\/p><ul><li>VPLS operates at the data link layer, providing LAN extension.<\/li><li>MPLS VPN operates at the network layer, enabling site-to-site or site-to-multiple-site communication.<\/li><\/ul>"},{"question":"What does the future hold for Virtual Private LAN Service?","answer":"<p>As technology evolves, VPLS is expected to improve in scalability and performance. Emerging technologies like SD-WAN and 5G networks may complement VPLS, offering even more robust LAN extension solutions.<\/p>"},{"question":"How are proxy servers associated with Virtual Private LAN Service?","answer":"<p>Proxy servers can complement VPLS by adding an extra layer of security and anonymity for users accessing the LAN extension. They act as intermediaries, concealing users' IP addresses and providing content filtering or caching services.<\/p><p>For more information on Virtual Private LAN Service, check out the comprehensive guide at OneProxy.<\/p>"}]},"_links":{"self":[{"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/wiki\/479528","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\/479528\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/media\/479529"}],"wp:attachment":[{"href":"https:\/\/oneproxy.pro\/vn\/wp-json\/wp\/v2\/media?parent=479528"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}