Thaum cov tswv tsev cov ntaub ntawv tsim cov ntaub ntawv sib txuas ntawm cov chaw sib cuam tshuam, lawv feem ntau xav txog cov teeb meem xws li bandwidth loj, qis latency, siab ceev, ceev xa mus, yooj yim khiav lag luam thiab tu, thiab kev ntseeg siab.Tam sim no, lub hauv paus loj-bandwidth OTN thev naus laus zis feem ntau yog tswj hwm los ntawm ntau lub tuam txhab lag luam loj hauv xov tooj (chips tau tham sib cais), xws li Huawei, ZTE, thiab Aran.Cov neeg siv khoom tseem ceeb uas lawv ntsib yog cov neeg siv xov tooj ib txwm muaj, yog li cov khoom lag luam ntawm OTN feem ntau yog tsim los ua kom tau raws li cov kev pabcuam ntawm cov neeg ua haujlwm no.Vim li no, OTN tau siv ntau ntxiv hauv DCI network daim ntawv thov hauv Internet kev lag luam.Muaj ntau qhov teeb meem tsis sib haum xeeb.
Cov yam ntxwv ntawm OTN cov cuab yeej yog tib yam teeb meem uas tau ntsib los ntawm DCI, kev lag luam nplua nuj nyiaj siv ua haujlwm, muaj zog OAM muaj peev xwm ntawm lub network, teem caij thiab multiplexing peev xwm ntawm txawv granular bandwidths, kab txhaum kam rau ua nyob rau hauv ntev-ntev tej yam kev mob, thiab kev siv ntawm tsawg-voltage ncaj qha tam sim no.Nta xws li kev siv qis ntawm kev siv hluav taws xob ntawm cov khoom siv.
1. Cov peev txheej kev lag luam nplua nuj xav tau O&M cov neeg ua haujlwm kom muaj kev tshaj lij, vam khom kev txhawb nqa los ntawm cov tuam txhab tsim khoom, thiab muaj cov cuab yeej kaw ntau dua.
2. Muaj peev xwm OAM muaj peev xwm, cov qauv tsis sib xws, kev sib txuas yooj yim dua thiab muaj kev ywj pheej ntau dua nrog kev sib koom tes sib koom tes, thiab cov haujlwm tsis muaj txiaj ntsig tseem ua rau cov nqi sib kis thiab kev ua haujlwm ntau dua rau DCI network.
3. Txawv granule teem sijhawm muaj peev xwm ua rau cov kev pabcuam encapsulation thav duab qauv nyuaj thiab ntau nested bytes.
4. Qhov kev ua txhaum txoj kab ntev ntev ua rau FEC algorithm complex, siv nyiaj ntau dua thiab siv sijhawm ntev dua los ua cov txheej txheem.
5. Lub 48V-DC fais fab mov hom ntawm OTN cov khoom yog txawv los ntawm tus qauv 19-nti 220V-AD (los yog 240V-DC) cov khoom siv hauv cov ntaub ntawv feem ntau.Lub installation yog qhov nyuaj thiab yuav tsum tau hloov hluav taws xob hauv chav computer
6. Cov khoom siv OTN ib txwm muaj ib lub thav duab loj, uas tsis haum rau kev teeb tsa hauv cov khoom txheem, thiab lub peev xwm ceev tsis siab.Tom qab kev nthuav dav yog teeb meem thiab xav kom cov txee yuav tsum tau txav los yog rov tsim dua.
Tam sim no, peb DCI network feem ntau yog los muab cov kav dej rau cov ntaub ntawv hla cov ntaub ntawv chaw.Cov yam ntxwv tseem ceeb ntawm cov qauv kev lag luam yog: kev sib koom ua ke thiab ib leeg bandwidth granularity yuav tsum, loj bandwidth, cov kev pabcuam hla cov ntaub ntawv (tshwj xeeb tshaj yog muaj ntau yam haujlwm IDC, cov ntaub ntawv loj cov kev pabcuam) muaj cov kev xav tau qis latency thiab siab xav tau rau kev ruaj ntseg network;Nyob rau tib lub sijhawm, vim tias tsis muaj cov kws tshaj lij thiab cov kws tshaj lij hauv kev lag luam hauv Is Taws Nem, kev ua haujlwm thiab kev saib xyuas ntawm DCI tes hauj lwm yuav tsum "yooj yim" "yooj yim" thiab "yooj yim" - yam tseem ceeb tau hais peb zaug (qhov twg Isn 'tsis yog hom network?);Kev loj hlob ntawm Is Taws Nem tawg ua rau kev tsim kho thiab nthuav dav lub voj voog luv luv (cov neeg ua haujlwm 'OTN nthuav dav lub voj voog feem ntau yog ib nrab xyoo mus rau ib xyoos, thaum Internet tus kheej DCI expansion yuav tsum yog 1 mus rau 3 lub hlis), Yog li ntawd, nws yog ib qho tsim nyog yuav tsum tau compress lub sijhawm nyob rau hauv txhua yam.
Yog li, OTN muab cov kev daws teeb meem siv tau rau DCI, tab sis OTN tsis yog qhov kev daws teeb meem zoo tshaj plaws rau DCI.Tam sim no hais tias DCI network tau nce zuj zus, muaj kev xav tau ntau ntxiv rau qee qhov kev daws teeb meem tsim nyog los daws cov teeb meem xws li tus nqi mus rau kev tsim kho, kev ua haujlwm thiab kev saib xyuas.ntau yam teeb meem ntsib.Thiab cov teeb meem no tsis muaj dab tsi ntau tshaj li rau qhov yuav tsum tau ua ntawm DCI network (loj bandwidth, qis latency, siab ceev, ceev xa mus, yooj yim khiav lag luam thiab tu, thiab kev ntseeg siab):
1. Loj bandwidth, DCI kis tau tus mob network tsis muaj cov nplua nuj hom granules zoo li cov tswv, cov bandwidth granules ntawm DCI kis tau tus mob network yog yooj yim, tam sim no feem ntau siv 10G los yog 100G, yav tom ntej 200G / 400G, thiab lwm yam, yog li tsis muaj kev xav tau. ua nws nrog loj bandwidth Bandwidth ntawm lwm granularities.Vim qhov tseeb tias qhov kev ncua deb ntawm DCI kis tau tus mob feem ntau tsis ntev dhau, siv 400G system raws li 200G PM-16QAM dual-carrier modulation, kev sib kis deb yam tsis muaj hluav taws xob relay tuaj yeem yog li 500 mais (PM-64QAM yog txog 200 kilometers), yog li ntawd lub metro nraub qaum kis tau tus mob ntawm DCI yuav tsis raug txwv los ntawm kev ncua deb.
2. Tsis tshua muaj latency, DCI kev lag luam yuav tsum tau, tshwj xeeb tshaj yog thaum huab xam siv rau pas dej ua ke cov kev pab cuam thiab multi-active cov ntaub ntawv chaw, lub latency yog xam nyob rau hauv lub microsecond theem, yog li ntawd lub sij hawm kis tau tus mob ntawm cov ntaub ntawv yuav tsum luv li sai tau, xav kom ntau tshaj qhov ceev ntawm lub teeb.Tshem tawm cov ntaub ntawv tsis tsim nyog ua haujlwm thiab txo cov teeb liab kis kab mob.Piv txwv li, los ntawm kev tshem tawm SD-FEC kev ua haujlwm siv los ntawm 100G OTN, ib qho rov qab-rau-rov qab tuaj yeem txuag tau 200 microseconds, thiab tshem tawm cov txheej txheem OTN encapsulation tuaj yeem txuag tau kaum tawm microseconds, thiab rationally siv hubspoke topology rau cov kev pabcuam tseem ceeb. kom ntseeg tau txoj kev luv tshaj plaws.Tau kawg, nws tseem tuaj yeem koom tes nrog MPLS thiab QOS ntawm qib IP los sim ua kom ntseeg tau tias qhov kev ncua sijhawm ntawm cov ntaub ntawv xa mus kuj zoo dua.
3.High density, ib zaug U, lossis 2U, tuaj yeem ua tiav qhov bandwidth txog li T, DWDM optical txheej thiab hluav taws xob teeb liab txheej decoupling, txhim kho qhov ntom ntom ntawm cov khoom siv, thiab txo qhov loj ntawm optical module.Piv txwv li, kev siv QSFP28 optical modules tuaj yeem ua kom ntseeg tau tias 100G kev nkag tau muaj peev xwm ntawm ib qho khoom siv tau zoo heev, thiab kev siv CFP2 hnub ci modules ntawm kab sab tuaj yeem xyuas kom meej tias kev sib kis bandwidth ntawm tag nrho cov cuab yeej zoo tuaj, 1U tuaj yeem ua 1.6t,3t.Tam sim no, ntau yam khoom lag luam tau tshwm sim hauv ntiaj teb, xws li ADVA, coriant, ciena thiab lwm lub tuam txhab.Tau kawg, domestic Huawei kuj tau tshaj tawm txog 902 cov khoom lag luam.Txawm li cas los xij, raws li kev ua tiav ntawm tsab xov xwm no, nws zoo nkaus li tias kev nkag mus rau hauv network ntawm Ministry of Industry thiab Information Technology tsis tau ua tiav.High density yuav ua rau muaj kev siv hluav taws xob siab thiab kub dissipation.Yog li ntawd, tus thawj OTN cua sov dissipation txoj kev ntawm sab laug thiab txoj cai cua nyob rau hauv thiab tawm, thiab nce thiab nqis cua nyob rau hauv thiab tawm yuav tsum tau muab pov tseg.
Cov khoom siv cua txias xav tau.
4. Kev xa tawm sai, siv cov txheej txheem tam sim no IDC 19-nti khib, zoo ib yam li daim ntawv ntawm cov khoom siv hluav taws xob, siv AC-220V rau cov khoom siv hluav taws xob ncaj qha, tshem tawm qhov xav tau ntawm lub zog thiab lub txee hloov pauv, thiab paub tias cov khoom tuaj yeem muab tso rau. cov rhawv tam sim ntawd tom qab lawv tuaj txog hauv chav tsev computer, thiab tuaj yeem teeb tsa tom qab ntsaws rau hauv lub hwj huam mov.kev lag luam, thiab ua haujlwm zoo hauv kev lees paub ua haujlwm kom ua tiav kev xa mus sai.
5. Kev ua haujlwm yooj yim thiab kev saib xyuas, DCI cov qauv kev lag luam yuav tsum, qhov kev ncua deb ntawm cov chaw zov me nyuam cov ntaub ntawv yuav tsis nyob deb heev, thiab cov kev tswj xyuas nyuaj, OAM thiab lwm yam dej num tsis tsim nyog los ua lub luag haujlwm loj hauv qhov xwm txheej no, thiab kev ua haujlwm nyuaj kuj raug txo. Nws txhim kho cov ntaub ntawv sib kis tau zoo, txhim kho cov ntaub ntawv ua lub sijhawm, thiab muaj kev xav tau ntau dua rau kev siv tshuab thiab kaw ntau dua.Kev sib txuas cov teeb liab ncaj qha ntawm Ethernet tshem tawm qhov nyuaj nyiaj siv ua haujlwm ntawm OTN, yog li cov kws tshaj lij IP network ib txwm muaj peev xwm ua haujlwm thiab tswj hwm DCI system.Tom qab sib txuas cov kev sib txuas ntawm sab qaum teb tshiab xws li YANG qauv, REST API, thiab netconf, DCI kev sib txuas cov cuab yeej tswj thiab IP network cov cuab yeej tswj tau tsim nrog tib qhov kev sib txuas, kom ua tau zoo dua kev sib koom ua ke raws li kev tswj hwm hauv nruab nrab.
6. Kev ntseeg siab, ntau lub cev routing thiab kev tiv thaiv thev naus laus zis uas tsis paub txog cov txheej txheem sab saud yuav txuas ntxiv ua lub luag haujlwm hauv DCI kis tau tus mob.Kev ua tsis tiav ntawm theem txuas hauv qab yuav tsum tsis muaj kev cuam tshuam rau cov kev pabcuam tshwj tsis yog tias lawv cuam tshuam tag nrho.Kev xaav los yog cuam tshuam, txawm tias nws yog kev tiv thaiv kev hloov pauv, txuas jitters, ncua nce, thiab lwm yam.
Post lub sij hawm: Feb-13-2023