Cp quang bin AAG c hn ni nh th no?

n v qun l t lin xc nh v tr cp b t bng cch o in, ri c 1 trong 3 i tu chuyn dng n b bin Vng Tu tin hnh sa cha.Ngy 6/1 va qua, n v iu hnh tuyncp quang binquc t chu - Thi Bnh Dng (Asia America GateWay - AAG) xc nh c v tr t cp hm 5/1 l cch trm cp b Vng Tu 117km. Hin cng tc hn ni cp ang c tin hnh. khch hng hiu r hn v qu trnh xc nh s c v hn ni cp AAG,ng L Vit Thanh Lun, Gim c Trung tm iu hnh mng (NOC) FPT Telecom chia s viDn Vitmt s thng tin v vn ny.

ng L Vit Thanh Lun, Gim c Trung tm iu hnh mng (NOC) FPT Telecom ang trnh by c ch vn hnh h thng ca n v cho Ph Ch tch UBND TP.HCM L Mnh H trong chuyn thm u nm 2014. nh: T liu.Theo ng Lun, n v qun l t lin xc nh v tr cp b t bng cch o in. Mt tn hiu quang ph spread c pht i, sau quan st tn hiu phn hi. Bng cc thut ton v o thi gian, c th tnh ton khong cch v xc nh c v tr gp s c.Ngay sau khi pht hin c v trt cpc th, n v iu hnh mng AAG c 1 trong 3 i tu n b bin Vng Tu tin hnh sa cha. Trong lc ny, cc nh cung cp dch v mng vin thng c s dng lu lng trn tuyn cp AAG s s dng tuyn cp t lin chuyn tip lu lng - mt gii php d phng quen thuc khi t cp."Cc tu trong khu vc khng dnh ring cho bt k tuyn cp bin no (lp mi hay sa cha) nn ty tnh hnh tu c ang bn x l cng vic khc hay khng m thi. Ngoi ra, iu kin thi tit cng nh hng n cng vic. Nu bin ng trn cp 5, tu chuyn dng cng phi hon x l", ng Lun cho hay.V nguyn nhn cp bin gp s c, rt c th l do ng t, tu nh c hoc neo ca tu vng phi, thm ch khng loi tr kh nng b c mp cn t nh nhiu thng tin vui xut hin trn mng, ng Lun nhn nh. Tuy nhin, mt kho st ti vng bin i Ty Dng v Caribe cho thy, nguyn nhn t cp do t nhin ch di 9%.Sau khi xc nh c v tr b t, trong vng 48h, Trung tm iu hnh cp quang AAG s ln k hoch sa cha chi tit. Vit Nam nm khu vc SEAIOCMA - mt trong 3 khu vng chu - Thi Bnh Dng theo phn chia ca Nh iu hnh cp quang AAG. Khu vc ny c 3 i tu x l nm cc im Phillipines, Singapore v n .Thng th i tu hay x l cho Vit Nam l Singapore. Vic cp giy php iu tu mt khong 1 n 2 tun, di chuyn n v tr t cp mt 2 n 5 ngy, v x l ni cp trong khong 7 n 10 ngy, ng Lun cho bit.Khi n c v tr cp gp s c, cc th ln s c nhim v xc nh chnh xc on cp b t. Sau , mt cnh tay cn cu s c th xung y bin a dy cp ln boong tu v tin hnh ni li. nhng vng bin su, tu chuyn dng s dng my ti ko b cp quang t y bin ln mt nc, sau c nh u cp b t bng phao ni. Tip theo, tu ni cp tip tc tm u b t cn li ca tuyn cp tin hnh ni tng si cp quang trong phng k thut c bit ngay trn tu.

Vic ni cp quang bin c thc hin bi cc k s vi h thng my mc hin i trn tu chuyn dng. nh: Emec.Sau khi vic hn ni hon tt, b cp s c bc li nh c vi lp v bo v v c ri tr li y bin. Tuy nhin, qu trnh ri cng i hi phi c my mc chuyn dng thi ct di y bin, to thnh rnh t cp quang vo v ph lp ct li ln trn gim thiu kh nng b va chm. Cui cng, cc nh cung cp dch v mng vin thng s nh tuyn li lung d liu qua ng truyn AAG.Mc d lin tc gp s c nhng khng th ph nhn tuyn cp AAG ny c nh hng rt ln n lu lng internet ca cc nh mng, bi lin kt v tinh nc ngoi ch chim 1% ca lu lng truy cp quc t. Theo tnh ton, lin kt v tinh ch cung cp tc vi megabit (Mb) mi giy v c tr cao, do tng hiu nng ca cc tuyn cp bin c th ln n vi terabit (Tb) mi giy cng vi tin cy cao, tr thp.Trc hng lot s c lin tc xy ra vi tuyn cp AAG, ng Nguyn Vn Khoa, Tng Gim c FPT Telecom cho hay, cng ty ny u t 10 triu USD vo tuyn cp quang bin chu - Thi Bnh Dng APG (Asia Pacific Gateway). APG c chiu di hn 11.000km vi bng thng ban u l 4Tbps. Tuyn cp ny s dng cng ngh ghp bc sng quang (DWDM) 40Gb/s v c bng thng thit k 15,3Tb/s.TheoWikipedia, cp quang l mt loi cp vin thng lm bng thy tinh hoc nha, s dng nh sng truyn tn hiu. Cp quang di, mng, thnh phn ca thy tinh trong sut bng ng knh ca mt si tc. Chng c sp xp trong b gi l cp quang v c s dng truyn tn hiu trong khong cch rt xa. Khng ging nh cp ng truyn tn hiu bng in, cp quang t b nhiu, tc v truyn xa hn.AAG l h thng cp quang bin c chiu di 20.000km, bng thng thit k t 2Tb/s, kt ni trc tip khu vc ng Nam vi M. Tuyn cp quang ny c a vo khai thc t nm 2009, i qua Malaysia, Singapore, Thi Lan, Vit Nam (im cp b ti Vng Tu), Brunei, Hong Kong, Philippines v M (Guam, Hawaii v California). Ngoi FPT Telecom, c 3 nh mng vin thng khc ca Vit Nam cng tham gia khai thc tuyn cp quang bin AAG l VNPT, Viettel v Sangon Postel (SPT).Trc , lc 08 gi 04 pht ngy 5/1, tuyn cp quang bin quc t AAG xy ra s c, b li cp trn on cp S1H - on r nhnh vo trm cp b Vng Tu. S c khin lu lng ca cc nh cung cp dch v vin thng ti Vit Nam ang khai thc trn tuyn ny b nh hng, trong c cc nh cung cp dch v vin thng ln nh FPT Telecom, VNPT, Viettel

Cp quang bin AAG s c khc phc trong mt thngTi 5.1, i din Viettel cho bit do c th cng vic din ra trn bin ph thuc nhiu vo thi tit v s c t cp quang bin AAG phc tp hn d kin, nn vic sa cha cp c th ko di t 3 tun n mt thng.c bit, tuyn cp quang bin AAG b t vo lc 8 gi 4 pht sng nay 5.1. V tr tuyn cp quang bin b t c xc nh ban u l nm phn on S1H, on r t ng truyn quc t vo Vng Tu.

Trong thi gian t cp, vic truy cp vo cc trang nc ngoi s b nh hng nhng cc trang trong nc vn chy bnh thng.Viettel cho bit khc phc s c ny, Viettel ch ng iu chnh dung lng kt ni trn cc hng quc t i qua cp quang bin lin (IA), cp quang t lin i ChinaTelecom v ChinaUnicom m bo duy tr kt ni bnh thng cho khch hng.Bn cnh , Viettel cng s tng thm 80 Gbps (tuyn i Hng Kng, Singapore) m bo nhu cu truy nhp tng cao ca khch hng vo u nm v trnh nghn mng vo gi cao im, d kin s hon thnh trc ngy 10.1.2015. iu ny s gip cho cc khch hng ang s dng Viettel khng b nh hng bi s c t cp quang bin AAG.Hin nay, Vit Nam c tng cng bn tuyn cp quang bin, trong tuyn AAG c dung lng truyn ti ln nht, cc tuyn SE-ME-WE-3, TVH c dung lng thp v c s dng 10 - 15 nm nay. Tuyn cp IA mi c xy dng v dung lng khng bng AAG.