OTN Application scenarios

OTN thiab PTN
Nws yuav tsum tau hais tias OTN thiab PTN yog ob lub thev naus laus zis sib txawv, thiab kev hais lus, nws yuav tsum tau hais tias tsis muaj kev sib txuas.
OTN yog ib qho kev thauj khoom siv kho qhov muag, uas tau hloov zuj zus los ntawm cov txheej txheem wavelength faib tshuab.Nws tsuas yog ntxiv qhov ntse optical switching muaj nuj nqi.Nws tuaj yeem paub optical crossover los ntawm cov ntaub ntawv teeb tsa yam tsis muaj phau ntawv fiber ntau jumpers.Kev tswj xyuas thiab kev sib txuas yooj yim ntawm WDM cov cuab yeej tau txhim kho zoo heev.Nyob rau tib lub sijhawm, OTN tshiab network yog maj mam hloov mus rau qhov loj dua bandwidth, cov khoom loj dua, thiab kev tiv thaiv zoo dua.

PTN yog ib pob ntawv thauj khoom network, uas yog cov khoom ntawm kev sib koom ua ke ntawm kev thauj mus los thiab cov ntaub ntawv network.Cov txheej txheem tseem ceeb yog TMPLS, uas muaj cov txheej txheem IP tsawg dua thiab cov pob khoom siv nyiaj ntau dua li cov khoom siv hauv network.Nws tuaj yeem paub lub nplhaib sib txuas thiab kev tiv thaiv.Nws yog tus cab kuj-chav cov ntaub ntawv network (cov ntaub ntawv ib txwm siv tsis tuaj yeem ua tau raws li cov kev cai hauv chav nqa khoom).Kev xa tawm bandwidth ntawm PTN yog me dua li ntawm OTN.Feem ntau, qhov siab tshaj plaws pab pawg bandwidth ntawm PTN yog 10G, OTN ib nthwv dej yog 10G, pab pawg neeg txoj kev tuaj yeem ncav cuag 400G-1600G, thiab cov thev naus laus zis tshiab tuaj yeem ncav cuag ib nthwv dej 40G.Nws yog lub hauv paus ntawm kev sib kis network.

OTN thiab SDH, WDM

OTN yog raws li WDM thev naus laus zis, kev ua haujlwm muaj zog, kev saib xyuas, kev tswj hwm thiab kev ua haujlwm (OAM) peev xwm ntawm SDH tau qhia los ntawm lub hauv paus ntawm lub peev xwm loj loj.OTN siv cov txheej txheem embedded FEC, nplua nuj nyob rau hauv kev saib xyuas thiab kev tswj nyiaj siv ua haujlwm, thiab tsim nyog rau cov kev pabcuam loj-granularity nkag mus rau FEC yuam kev kho coding, uas txhim kho qhov kev ua yuam kev me ntsis thiab ua rau muaj kev sib kis ntawm qhov muag.

OTN Application scenarios

OTN-based ntse optical network yuav muab cov kev daws teeb meem zoo tshaj plaws rau kev sib kis ntawm cov kev pabcuam loj-granularity broadband.Kev thauj mus los feem ntau yog tsim los ntawm kev thauj mus los hauv lub nroog, lub hauv paus hauv nroog thauj network, thiab metro (hauv zos) thauj network.Lub metro (hauv zos) thauj network tuaj yeem muab faib ntxiv rau hauv cov txheej txheem tseem ceeb, txheej txheej txheej thiab txheej txheej nkag.Piv nrog SDH, qhov zoo tshaj plaws ntawm OTN technology yog muab sijhawm teem sijhawm thiab xa cov ntaub ntawv loj ntawm cov ntaub ntawv bandwidth.Yog li ntawd, seb puas yuav siv OTN thev naus laus zis ntawm cov txheej txheem sib txawv yog nyob ntawm qhov loj ntawm lub sijhawm teem sijhawm kev pabcuam bandwidth granularity.Raws li qhov xwm txheej tam sim no ntawm lub network, cov ntsiab lus tseem ceeb ntawm cov txheej txheem tseem ceeb ntawm cov kab ke sib txuas hauv lub xeev, cov kab hluav taws xob hauv lub xeev thiab cov metro (hauv zos) kis tau tus mob feem ntau Gb / s thiab siab dua.Zoo dua OTN thev naus laus zis los tsim.
Rau qhov sib sau ua ke thiab nkag mus rau theem ntawm cheeb tsam nroog loj (hauv zos) kev thauj mus los, thaum lub sijhawm teem caij tseem ceeb mus txog qib Gb / s, OTN thev naus laus zis kuj tuaj yeem tsim ua kom zoo dua.

1. National trunk optical transport network Nrog rau IP-raws li network thiab cov kev pabcuam, kev tsim cov kev pabcuam tshiab thiab cov neeg siv broadband nce sai, IP tsheb khiav hauv lub tebchaws tau nce siab, thiab qhov kev thov bandwidth tau nce exponentially txhua xyoo. .WDM lub teb chaws lub cev kab yog nqa PSTN / 2G cov kev pabcuam deb, NGN / 3G kev pabcuam ntev, thiab kev pabcuam hauv Internet hauv tebchaws.Vim muaj cov kev pab cuam loj heev, WDM lub teb chaws lub cev kab muaj qhov xav tau ceev ceev rau kev tiv thaiv cov kev pabcuam.Tom qab siv OTN thev naus laus zis, tus neeg nqa khoom ntawm lub teb chaws lub cev kab IP hla OTN tuaj yeem paub txog kev tiv thaiv SNCP, SDH zoo li lub nplhaib network tiv thaiv, MESH network tiv thaiv thiab lwm txoj hauv kev tiv thaiv network.Tsawg heev.

2. Intra-provincial/regional trunk optical transport network Lub intra-provincial/regional backbone routers nqa cov kev pab cuam ntawm cov chaw ua hauj lwm nyob deb (NGN/3G/IPTV/special kab rau cov neeg muas zaub loj, thiab lwm yam).Los ntawm kev tsim kho ntawm lub xeev / cheeb tsam pob tw OTN optical kis tau tus mob network, kev nyab xeeb thiab txhim khu kev qha kis tau tus mob ntawm GE/10GE, 2.5G/10GPOS loj-granularity cov kev pab cuam yuav tsum tau paub;nplhaib tes hauj lwm, lub nplhaib sib txuas, thiab MESH tes hauj lwm tuaj yeem tsim tau;lub network tuaj yeem nthuav dav ntawm kev thov;Paub txog kev teem caij sib tw thiab tu cov kev pabcuam wavelength / sub-wavelength, thiab muab cov kev pabcuam wavelength / sub-wavelength rau cov neeg siv khoom loj;kuj paub txog kev sib kis ntawm lwm cov kev pabcuam xws li STM-1/4/16/64SDH, ATM, FE, DVB, HDTV, ANY, thiab lwm yam.

3. Metro/local optical transport network Nyob rau hauv lub core txheej ntawm lub metro network, OTN optical thauj network tuaj yeem paub txog cov kev pabcuam dav dav dav ntawm lub metro aggregation router, lub zos network C4 (lub cheeb tsam / cheeb tsam chaw) aggregation router thiab lub nroog loj. core router.xa.Qhov nruab nrab ntawm lub router feem ntau yog GE / 10GE, thiab tej zaum kuj yog 2.5G / 10GPOS.OTN optical thauj network ntawm metro tub ntxhais l