{"id":762,"date":"2010-11-24T08:57:25","date_gmt":"2010-11-24T01:57:25","guid":{"rendered":"http:\/\/snt.com.vn\/blog\/?p=762"},"modified":"2010-11-24T08:57:25","modified_gmt":"2010-11-24T01:57:25","slug":"gi%e1%ba%a3i-phap-m%e1%ba%a1ng-toan-quangall-fiber-network-c%e1%bb%a7a-corecess","status":"publish","type":"post","link":"https:\/\/snt.com.vn\/blog\/gi%e1%ba%a3i-phap-m%e1%ba%a1ng-toan-quangall-fiber-network-c%e1%bb%a7a-corecess\/","title":{"rendered":"Gi\u1ea3i ph\u00e1p m\u1ea1ng to\u00e0n quang(All-Fiber Network) c\u1ee7a Corecess"},"content":{"rendered":"<p><span style=\"font-size: medium;\"><span style=\"font-size: large;\"><strong>T\u1ed5ng quan<\/strong><\/span><br \/>\n <\/span><\/p>\n<p><span style=\"font-size: small;\">S\u1ee3i quang c\u00f3 th\u1ec3 m\u1ea1ng l\u1ea1i m\u1ed9t m\u1ea1ng th\u00f4ng tin c\u00f3 b\u0103ng th\u00f4ng h\u1ea7u nh\u01b0 kh\u00f4ng gi\u1edbi h\u1ea1n. M\u1ea1ng truy nh\u1eadp to\u00e0n quang l\u00e0 m\u1ee5c ti\u00eau cu\u1ed1i c\u00f9ng v\u00e0 ng\u00e0y nay n\u00f3 \u0111\u00e3 ho\u00e0n to\u00e0n hi\u1ec7n h\u1eefu. V\u1edbi c\u00f4ng ngh\u1ec7 m\u1ea1ng quang th\u1ee5 \u0111\u1ed9ng Passive Optical Network &#8211;\u00a0 PON, m\u1ea1ng to\u00e0n quang \u0111\u00e3 \u0111\u01b0\u1ee3c \u0111\u01b0a v\u00e0o khai th\u00e1c \u1edf nhi\u1ec1u khu v\u1ef1c. Gi\u1ea3i ph\u00e1p m\u1ea1ng Giga Ethernet theo c\u00f4ng ngh\u1ec7 PON c\u1ee7a Corecess mang \u0111\u1ebfn m\u1ed9t m\u1ea1ng to\u00e0n quang c\u00f3 dung l\u01b0\u1ee3ng cao v\u00e0 t\u0103ng c\u01b0\u1eddng hi\u1ec7u qu\u1ea3 kinh t\u1ebf. Gi\u1ea3i ph\u00e1p m\u1ea1ng d\u1ef1a v\u00e0o IP\/Ethernet c\u1ee7a Corecess gi\u00fap gi\u00e1m thi\u1ec3u chi ph\u00ed \u0111\u1ea7u t\u01b0, m\u1ea1ng \u0111\u01a1n gi\u1ea3n v\u00e0 chi ph\u00ed v\u1eadn h\u00e0nh th\u1ea5p khi s\u1eed d\u1ee5ng c\u00e1c thi\u1ebft b\u1ecb th\u1ee5 \u0111\u00f4ng.<br \/>\n The S5, m\u1ed9t switch l\u1edbp 3 hi\u1ec7u su\u1ea5t cao \u0111\u01b0\u1ee3c d\u00f9ng l\u00e0m OLT, mang \u0111\u1ebfn nh\u1eefng k\u1ebft n\u1ed1i quang GEPON t\u1ed1c \u0111\u1ed9 gigabit. V\u1edbi ph\u1ea1m vi ho\u1ea1t \u0111\u1ed9ng r\u1ed9ng, ONT c\u00f3 th\u1ec3 k\u1ebft n\u1ed1i tr\u1ef1c ti\u1ebfp ho\u1eb7c th\u00f4ng qua c\u00e1c b\u1ed9 chia th\u1ee5 \u0111\u1ed9ng. M\u1ed9t \u0111\u01b0\u1eddng n\u1ed1i GEPON c\u00f3 th\u1ec3 chia ra th\u00e0nh 32 ho\u1eb7c 64 \u0111\u01b0\u1eddng quang nh\u1ecf h\u01a1n nh\u1edd s\u1eed d\u1ee5ng c\u00e1c b\u1ed9 chia. Corecess GEPON h\u1ed7 tr\u1ee3 nh\u1eadn d\u1ea1ng nhi\u1ec1u \u0111\u01b0\u1eddng n\u1ed1i logic &#8211; Logical Link Identifier(LLID) gi\u00fap thi\u1ebft l\u1eadp nhi\u1ec1u k\u1ebft n\u1ed1i logic trong m\u1ed7i k\u1ebft n\u1ed1i\u00a0 GEPON v\u1eadt l\u00fd. Lu\u1ed3ng d\u1eef li\u1ec7u, tho\u1ea1i, video c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u0111i\u1ec1u khi\u1ec3n t\u00e1ch bi\u1ec7t \u1edf t\u1eebng h\u1ed9 thu\u00ea bao. \u0110\u1ed1i v\u1edbi c\u00e1c thu\u00ea bao l\u00e0 doanh nghi\u1ec7p, l\u01b0u l\u01b0\u1ee3ng Internet v\u00e0 Intranet c\u0169ng \u0111\u01b0\u1ee3c \u0111i\u1ec1u khi\u1ec3n t\u00e1ch bi\u1ec7t. V\u1edbi nh\u1eefng ch\u1ee9c n\u0103ng chuy\u1ec3n m\u1ea1ch v\u00e0 \u0111\u1ecbnh tuy\u1ebfn L\u1edbp 3, k\u0129 thu\u1eadt ti\u00ean ti\u1ebfn c\u1ee7a Corecess c\u00f3 th\u1ec3 gi\u00fap nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 tri\u1ec3n khai linh ho\u1ea1t c\u00e1c d\u1ecbch v\u1ee5 cho c\u1ea3 h\u1ed9 gia \u0111\u00ecnh v\u00e0 doanh nghi\u1ec7p v\u1edbi c\u00f9ng m\u1ed9t c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng.<br \/>\n <strong> <\/strong><\/span><\/p>\n<p><br class=\"spacer_\" \/><\/p>\n<p><span style=\"font-size: medium;\"><span style=\"font-size: large;\"><strong>Tri\u1ec3n khai c\u00e1c d\u1ecbch v\u1ee5 m\u1edf r\u1ed9ng<\/strong><\/span><br \/>\n <\/span><\/p>\n<p><span style=\"font-size: medium;\"><span style=\"font-size: small;\">Kh\u00f4ng nh\u01b0 c\u00e1c nh\u00e0 cung c\u1ea5p GEPON kh\u00e1c, ONT c\u1ee7a Corecess h\u1ed7 tr\u1ee3 t\u1ea7m bao ph\u1ee5 m\u1ea1ng l\u00ean t\u1edbi 20km. Vi\u1ec7c tri\u1ec3n khai v\u00e0 v\u1eadn h\u00e0nh m\u1ed9t h\u1ec7 th\u1ed1ng OLT l\u1edbn cho m\u1ed9t kho\u1ea3ng c\u00e1ch xa , \u0111i\u1ec3n h\u00ecnh l\u00e0 v\u00f9ng n\u00f4ng th\u00f4n s\u1ebd kh\u00f4ng kinh t\u1ebf cho m\u1ed9t s\u1ed1 kh\u00e1ch h\u00e0ng nh\u1ecf khi c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng c\u1ee7a h\u1ecd c\u00f3 gi\u1edbi h\u1ea1n. Nh\u01b0ng OLT ph\u00e2n c\u1ea5p nh\u1ecf S1 c\u1ee7a Corecess c\u00f9ng v\u1edbi c\u00f4ng ngh\u1ec7 WDM PON s\u1ebd gi\u00fap cho nh\u00e0 cung c\u1ea5p d\u1ecbch v\u1ee5 c\u00f3 th\u1ec3 m\u1edf r\u1ed9ng t\u1ea7m bao ph\u1ee7 c\u1ee7a d\u1ecbch v\u1ee5 trong kho\u1ea3ng 40km, ph\u1ee5c v\u1ee5 \u0111c 1024 thu\u00ea bao tr\u00ean m\u1ed7i s\u1ee3i quang t\u1eeb CO\/HUB \u0111\u1ebfn RT\/Node. H\u01a1n th\u1ebf n\u1eefa, khi k\u1ebft n\u1ed1i S1 \u0111\u1ebfn S5 c\u00f9ng v\u1edbi d\u1ecbch v\u1ee5 truy\u1ec1n nh\u1eadn quang d\u00e0nh cho th\u01b0\u01a1ng m\u1ea1i th\u00ec ph\u1ea1m vi c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c m\u1edf r\u1ed9ng h\u01a1n 100km, v\u01b0\u1ee3t qua gi\u1edbi h\u1ea1n kho\u1ea3ng c\u00e1ch c\u1ee7a m\u1ea1ng PON. Nh\u00e0 m\u1ea1ng c\u00f3 th\u1ec3 b\u1ea3o d\u01b0\u1ee1ng, duy tr\u00ec d\u1ecbch v\u1ee5 nh\u1ea5t qu\u00e1n, \u0111\u1ea3m b\u1ea3o v\u1ea5n \u0111\u1ec1 kinh t\u1ebf.<\/span><br \/>\n <span style=\"font-size: large;\"><strong> <\/strong><\/span><\/span><\/p>\n<p style=\"text-align: center;\"><a href=\"http:\/\/snt.com.vn\/blog\/wp-content\/uploads\/2010\/11\/sol_allfiber.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-763 aligncenter\" title=\"sol_allfiber\" src=\"http:\/\/snt.com.vn\/blog\/wp-content\/uploads\/2010\/11\/sol_allfiber.jpg\" alt=\"\" width=\"600\" height=\"300\" \/><\/a><\/p>\n<p><br class=\"spacer_\" \/><\/p>\n<p><span style=\"font-size: medium;\"><span style=\"font-size: large;\"><strong>L\u1ee3i th\u1ebf c\u1ee7a Corecess<\/strong><\/span><br \/>\n <\/span><\/p>\n<p><br class=\"spacer_\" \/><\/p>\n<p><span style=\"font-size: medium;\"><em><strong>OLT c\u1ea5u tr\u00fac ph\u00e2n t\u1ea7ng hi\u1ec7u su\u1ea5t cao<\/strong><\/em><br \/>\n <\/span><\/p>\n<p><span style=\"font-size: medium;\"><span style=\"font-size: small;\">OLT S5 c\u1ee7a Corecess cung c\u1ea5p nhi\u1ec1u m\u1ee9c chuy\u1ec3n m\u1ea1ch v\u00e0 \u0111\u01b0\u1eddng n\u1ed1i quang dung l\u01b0\u1ee3ng cao. Th\u1eadm ch\u00ed k\u1ebft n\u1ed1i t\u1ea3i l\u00ean n\u1ed1i t\u1edbi m\u1ea1ng c\u0169ng \u0111\u01b0\u1ee3c chia ra nhi\u1ec1u k\u1ebft n\u1ed1i 10Gbps. Nh\u00e0 m\u1ea1ng s\u1ebd m\u1edf r\u1ed9ng v\u00f9ng bao ph\u1ee7 m\u1ed9t c\u00e1ch t\u1ef1 do, gi\u00fap t\u1ed1i \u01b0u h\u00f3a m\u1ea1ng to\u00e0n quang c\u1ee7a h\u1ecd nh\u1edd t\u00ednh m\u1ec1m d\u1ebbo c\u1ee7a S5. V\u1edbi nh\u1eefng ch\u1ee9c n\u0103ng cao c\u1ea5p nh\u01b0 Multicast, \u0111i\u1ec1u khi\u1ec3n QoS v\u00e0 \u0111\u1ecbnh tuy\u1ebfn, nh\u00e0 m\u1ea1ng c\u00f3 th\u1ec3 thi\u1ebft l\u1eadp v\u00e0 duy tr\u00ec m\u1ea1ng to\u00e0n quang \u0111\u01a1n gi\u1ea3n cho c\u1ea3 d\u1ecbch v\u1ee5 \u0111\u1ebfn h\u1ed9 gia \u0111\u1ecbnh v\u00e0 d\u1ecbch v\u1ee5 mang t\u00ednh th\u01b0\u01a1ng m\u1ea1i.<\/span><br \/>\n <strong> <\/strong><\/span><\/p>\n<p><span style=\"font-size: medium;\"><em><strong>Ch\u1ee9c n\u0103ng cao c\u1ea5p c\u1ee7a c\u00e1c s\u1ea9n ph\u1ea9m GEPON<\/strong><\/em><br \/>\n <\/span><\/p>\n<p><span style=\"font-size: medium;\"><span style=\"font-size: small;\">Corecess cung c\u1ea5p ch\u1ee9c n\u0103ng \u0111a LLID trong GEPON. Ch\u1ee9c n\u0103ng gi\u00fap \u0111i\u1ec1u khi\u1ec3n ri\u00eang bi\u1ec7t cho t\u1eebng lo\u1ea1i l\u01b0u l\u01b0\u1ee3ng kh\u00e1c nhau cho m\u1ed7i user v\u00e0 cung c\u1ea5p \u0111i\u1ec1u khi\u1ec3n QoS m\u1ec1m d\u1ebbo. Ph\u1ea7n c\u1ee9ng d\u1ef1a tr\u00ean ch\u1ee9c n\u0103ng c\u1ea5p b\u0103ng th\u00f4ng \u0111\u1ed9ng(Dynamic Bandwidth Allocation) gi\u00fap gi\u1ea3m thi\u1ec3u \u0111\u1ed9 tr\u1ec5 v\u00e0 dao \u0111\u1ed9ng tr\u1ec5 c\u1ee7a frame. Nh\u00e0 m\u1ea1ng c\u00f3 th\u1ec3 cung c\u1ea5p QoS c\u1ea5p cao \u0111\u1ebfn kh\u00e1ch h\u00e0ng c\u1ee7a h\u1ecd nh\u1edd c\u00e1c t\u00ednh n\u0103ng kh\u00e1c nhau \u1edf nh\u1eefng thi\u1ebft b\u1ecb GEPON c\u1ee7a Corecess<\/span><br \/>\n <em><strong> <\/strong><\/em><\/span><\/p>\n<p><span style=\"font-size: medium;\"><em><strong>N\u00e2ng cao t\u00ednh kinh t\u1ebf<\/strong><\/em><br \/>\n <\/span><\/p>\n<p><span style=\"font-size: small;\">V\u1edbi s\u1ef1 k\u1ebft h\u1ee3p gi\u1eefa WDM PON v\u00e0 OLT c\u1ea5p th\u1ea5p, nh\u00e0 m\u1ea1ng c\u00f3 th\u1ec3 ti\u1ebft ki\u1ec7m \u0111\u01b0\u1ee3c c\u00e1p feeder. OLT c\u1ea5p th\u1ea5p c\u00f3 th\u1ec3 gi\u00fap m\u1edf r\u1ed9ng v\u00f9ng d\u1ecbch v\u1ee5 l\u00ean t\u1edbi 100km nh\u1edd k\u1ebft n\u1ed1i v\u1edbi OLT S5 v\u1edbi b\u1ed9 truy\u1ec3n nh\u1eadn Gigabit Ethernet th\u01b0\u01a1ng m\u1ea1i.<\/span><\/p>\n<p><br class=\"spacer_\" \/><\/p>\n<p><span style=\"font-size: medium;\"><span style=\"color: #ff0000;\"><em><strong>***SNT hi\u1ec7n \u0111ang cung c\u1ea5p c\u00e1c s\u1ea3n ph\u1ea9m OLT, ONT, ONU, Splitter c\u1ee7a Corecess&#8230;H\u00e3y li\u00ean h\u1ec7 v\u1edbi ch\u00fang t\u00f4i \u0111\u1ec3 \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3 t\u1ed1t nh\u1ea5t c\u00f3 th\u1ec3.<\/strong><\/em><\/span><br \/>\n <\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>T\u1ed5ng quan S\u1ee3i quang c\u00f3 th\u1ec3 m\u1ea1ng l\u1ea1i m\u1ed9t m\u1ea1ng th\u00f4ng tin c\u00f3 b\u0103ng th\u00f4ng h\u1ea7u nh\u01b0 kh\u00f4ng gi\u1edbi h\u1ea1n.<\/p>\n","protected":false},"author":9,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[74,1],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.2.1 - 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