Raws li cov yam ntxwv no, muaj kwv yees li ob qhov kev daws teeb meem DCI:
1. Siv cov khoom siv dawb huv DWDM, thiab siv cov xim kho qhov muag module + DWDM multiplexer/demultiplexer ntawm qhov hloov.Nyob rau hauv cov ntaub ntawv ntawm ib leeg-channel 10G, tus nqi qis heev, thiab cov khoom xaiv muaj ntau.10G xim lub teeb module yog nyob rau hauv domestic Nws twb tau tsim, thiab tus nqi twb tsis tshua muaj heev (qhov tseeb, 10G DWDM system pib los ua nrov ob peb xyoos dhau los, tab sis nrog lub sij hawm tuaj txog ntawm ib co loj bandwidth, nws muaj. kom raug tshem tawm, thiab 100G xim lub teeb module tseem tsis tau tshwm sim.) Tam sim no, 100G nyuam qhuav pib tshwm nyob rau hauv Tuam Tshoj txog cov xim kho qhov muag modules, thiab tus nqi tsis tsawg txaus, tab sis nws yuav ib txwm ua kom muaj zog pab. mus rau DCI network.
2. Siv cov khoom siv hluav taws xob ntau OTN, lawv yog 220V AC, 19-nti khoom, 1 ~ 2U siab, thiab kev xa tawm yooj yim dua.SD-FEC muaj nuj nqi raug muab tua kom txo qhov ncua sij hawm, thiab kev tiv thaiv kev tiv thaiv ntawm cov txheej txheem kho qhov muag yog siv los txhim kho kev ruaj ntseg, thiab kev tswj hwm sab qaum teb kuj tseem txhim kho kev txhim kho peev txheej ntawm cov khoom siv nthuav dav.Txawm li cas los xij, OTN thev naus laus zis tseem khaws cia, thiab kev tswj hwm tseem yuav nyuaj.
Tsis tas li ntawd, dab tsi thawj-tier DCI network builders tab tom ua tam sim no yog qhov tseem ceeb rau decouple DCI kis tau tus mob network, suav nrog decoupling ntawm optical ntawm txheej 0 thiab hluav taws xob ntawm txheej 1, nrog rau NMS thiab cov cuab yeej kho vajtse ntawm cov tuam txhab tsoos. .decoupling.Txoj hauv kev ib txwm muaj yog tias qee qhov chaw tsim khoom siv hluav taws xob ua khoom siv yuav tsum koom tes nrog tib lub chaw tsim khoom cov khoom siv kho qhov muag, thiab cov cuab yeej kho vajtse yuav tsum koom tes nrog cov chaw tsim khoom tsim NMS software rau kev tswj hwm.Txoj kev niaj hnub no muaj ob peb qhov teeb meem loj:
1. Lub tshuab kaw.Hauv txoj kev xav, qib optoelectronic tuaj yeem sib cais los ntawm ib leeg, tab sis cov tuam txhab tsim khoom lag luam txhob txwm tsis txhob decouple thiaj li tswj tau txoj cai ntawm kev siv tshuab.
2. Tus nqi ntawm DCI kis tau tus mob network feem ntau yog concentrated nyob rau hauv cov hluav taws xob teeb liab ua txheej txheem.Tus nqi pib ntawm kev tsim kho yog tsawg, tab sis thaum lub peev xwm nthuav dav, cov chaw tsim khoom yuav nce tus nqi raws li kev hem thawj ntawm kev ua haujlwm tsis zoo, thiab tus nqi nthuav dav yuav nce siab heev.
3. Tom qab cov txheej txheem kho qhov muag ntawm DCI kis tau tus mob tau muab tso rau hauv kev siv, nws tsuas yog siv tau los ntawm cov khoom siv hluav taws xob ntawm tib lub chaw tsim khoom.Kev siv tus nqi ntawm cov cuab yeej siv yog tsawg, uas tsis ua raws li txoj kev loj hlob ntawm kev sib koom ua ke ntawm cov peev txheej, thiab tsis tsim nyog rau kev sib koom ua ke ntawm cov txheej txheem kho qhov muag.Lub decoupled optical txheej tau nqis peev sib cais nyob rau theem pib ntawm kev tsim kho, thiab tsis txwv los ntawm kev siv yav tom ntej ntawm cov txheej txheem kho qhov muag los ntawm ntau lub tuam txhab, thiab sib txuas sab qaum teb ntawm cov txheej txheem kho qhov muag nrog SDN thev naus laus zis los ua cov kev taw qhia ntawm cov channel. cov peev txheej ntawm cov txheej txheem kho qhov muag, txhim kho kev lag luam yooj.
4. Cov khoom siv network seamlessly txuas nrog lub tuam txhab Internet tus kheej network tswj platform ncaj qha los ntawm cov ntaub ntawv qauv ntawm YANGmodel, uas txuag kev txhim kho peev ntawm kev tswj hwm platform thiab tshem tawm NMS software muab los ntawm cov chaw tsim khoom, uas txhim kho kev ua haujlwm ntawm kev sau cov ntaub ntawv thiab network tswj.tswj efficiency.
Yog li ntawd, optoelectronic decoupling yog ib qho kev taw qhia tshiab rau kev txhim kho ntawm DCI kis tau tus mob network.Nyob rau hauv lub neej yav tom ntej, cov txheej txheem kho qhov muag ntawm DCI kis tau tus mob tuaj yeem yog SDN thev naus laus zis tsim los ntawm ROADM + sab qaum teb-sab qab teb interface, thiab cov channel tuaj yeem qhib, teem sijhawm thiab rov qab los ntawm arbitrarily.Nws yuav muaj peev xwm siv cov khoom siv hluav taws xob sib xyaw ntawm cov chaw tsim khoom, lossis txawm tias siv Ethernet interfaces thiab OTN interfaces ntawm tib qhov kev kho qhov muag.Nyob rau lub sijhawm ntawd, kev ua haujlwm ntawm kev ua haujlwm ntawm kev nthuav dav thiab kev hloov pauv yuav zoo heev, thiab cov txheej txheem kho qhov muag kuj tseem siv tau.Nws yog qhov yooj yim dua rau kev paub qhov txawv, kev tswj xyuas cov logic hauv lub network tau pom meej dua, thiab tus nqi yuav raug txo kom tsawg.
Rau SDN, lub hauv paus tseem ceeb yog kev tswj hwm hauv nruab nrab thiab faib cov peev txheej hauv network.Yog li, dab tsi yog DWDM kis tau tus mob network cov peev txheej uas tuaj yeem tswj hwm ntawm DCI kis tau tus mob tam sim no?
Muaj peb txoj kev, txoj kev, thiab bandwidths (frequency).Yog li ntawd, lub teeb nyob rau hauv kev koom tes ntawm lub teeb + IP yog ua tiav nyob rau hauv ib ncig ntawm kev tswj thiab faib ntawm peb lub ntsiab lus.
Cov channel ntawm IP thiab DWDM raug txiav tawm, yog li yog tias qhov kev sib raug zoo ntawm IP kev sib txuas lus thiab DWDM channel raug teeb tsa nyob rau theem pib, thiab kev sib raug zoo ntawm cov channel thiab IP yuav tsum tau kho tom qab, koj tuaj yeem siv OXC. Cov txheej txheem yog siv los ua kom ceev channel hloov ntawm qib millisecond, uas tuaj yeem ua rau IP txheej tsis paub.Los ntawm kev tswj hwm ntawm OXC, cov peev txheej hauv nruab nrab ntawm kev tswj hwm kev sib kis ntawm txhua qhov chaw tuaj yeem ua tiav, txhawm rau koom tes nrog kev lag luam SDN.
Kev hloov kho decoupling ntawm ib qho channel thiab IP tsuas yog ib feem me me xwb.Yog tias koj xav txog kev kho qhov bandwidth thaum kho cov channel, koj tuaj yeem daws qhov teeb meem ntawm kev kho cov kev xav tau ntawm cov kev pabcuam sib txawv hauv lub sijhawm sib txawv.Zoo heev txhim kho qhov kev siv tus nqi ntawm kev tsim bandwidth.Yog li ntawd, thaum koom tes nrog OXC los kho cov channel, ua ke nrog cov multiplexer thiab demultiplexer ntawm cov kab sib chaws hloov tau yooj yim, ib qho channel tsis muaj qhov ruaj khov nruab nrab wavelength, tab sis tso cai rau nws los npog qhov ntau zaus scalable, thiaj li ua tiav kev hloov kho tau yooj yim. bandwidth loj.Ntxiv mus, nyob rau hauv cov ntaub ntawv ntawm kev siv ntau yam kev pab cuam nyob rau hauv ib tug network topology, zaus siv tus nqi ntawm DWDM system tuaj yeem txhim kho ntxiv, thiab cov peev txheej uas twb muaj lawm tuaj yeem siv tau rau hauv saturation.
Nrog rau kev tswj hwm kev muaj peev xwm ntawm thawj ob, txoj kev tswj hwm ntawm kev sib kis network tuaj yeem pab tag nrho cov network topology kom muaj kev ruaj ntseg dua.Raws li cov yam ntxwv ntawm kev sib txuas lus, txhua txoj hauv kev muaj kev ywj pheej kis tau tus mob channel, yog li nws tseem ceeb heev los tswj thiab faib cov kev sib txuas ntawm txhua txoj hauv kev sib koom ua ke, uas yuav muab txoj hauv kev zoo xaiv rau ntau txoj kev pabcuam, thiab txhawb kev siv cov peev txheej channel ntawm txhua txoj hauv kev.Ib yam li hauv ASON, kub, nyiaj thiab tooj liab yog qhov txawv rau cov kev pabcuam sib txawv kom ntseeg tau tias kev ruaj ntseg ntawm cov kev pabcuam siab tshaj plaws.
Piv txwv li, muaj ib lub nplhaib network tsim los ntawm peb lub chaw A, B, thiab C. Muaj kev pabcuam S1 (xws li intranet loj cov ntaub ntawv kev pabcuam), los ntawm A txog B txog C, tuav 1 ~ 5 nthwv dej ntawm lub nplhaib no, txhua yoj muaj 100G bandwidth, thiab zaus zaus yog 50GHz;muaj kev pabcuam S2 (kev pabcuam sab nraud), Los ntawm A txog B txog C, 6 ~ 9 nthwv dej ntawm lub nplhaib no tau nyob, txhua nthwv dej muaj bandwidth ntawm 100G, thiab lub sijhawm zaus yog 50GHz.
Nyob rau lub sijhawm ib txwm muaj, qhov kev siv bandwidth thiab channel no tuaj yeem ua tau raws li qhov xav tau, tab sis thaum qee zaum, piv txwv li, ib lub chaw tshiab cov ntaub ntawv ntxiv, thiab kev lag luam yuav tsum tau tsiv mus nyob rau hauv lub sijhawm luv luv, ces qhov kev thov rau intranet bandwidth hauv. Lub sijhawm no yuav yog Nws tau nce ob npaug, thawj 500G bandwidth (5 100G), tam sim no xav tau 2T bandwidth.Tom qab ntawd cov kev sib txuas ntawm qib sib kis tuaj yeem suav rov qab, thiab tsib 400G raws tau xa mus rau hauv yoj txheej.Lub caij nyoog zaus ntawm txhua 400G channel yog hloov los ntawm thawj 50GHz mus rau 75GHz.Nrog rau qhov hloov tau yooj yim grating ROADM thiab multiplexer / demultiplexer, tag nrho Txoj hauv kev ntawm qib kis tau tus mob, yog li tsib txoj kab no tuav 375GHz spectrum cov peev txheej.Tom qab cov peev txheej ntawm qib sib kis tau npaj txhij, kho OXC los ntawm kev tswj hwm hauv nruab nrab, thiab kho cov kev sib kis tau siv los ntawm thawj 1-5 nthwv dej ntawm 100G cov kev pabcuam teeb liab mus rau qhov tshiab tau npaj 5 nrog kev ncua sijhawm millisecond-theem 400G kev pabcuam. channel nce mus, kom lub luag haujlwm ntawm kev hloov pauv hloov pauv ntawm bandwidth thiab channel raws li DCI cov kev pabcuam yuav tsum ua tiav, uas tuaj yeem ua tiav hauv lub sijhawm.Tau kawg, lub network txuas ntawm cov khoom siv IP yuav tsum tau txhawb nqa 100G / 400G tus nqi kho tau thiab kho qhov muag teeb liab zaus (yav dav) hloov pauv, uas yuav tsis muaj teeb meem.
Hais txog lub network thev naus laus zis ntawm DCI, kev ua haujlwm uas tuaj yeem ua tiav los ntawm kev sib kis tau qis heev.Txhawm rau kom ua tiav DCI lub network ntse dua, nws yuav tsum tau paub ua ke nrog IP.Piv txwv li, siv MP-BGP EVPN + VXLAN ntawm tus IP intranet ntawm DCI kom sai sai xa cov txheej 2 network hla DCs, uas tuaj yeem ua tau zoo heev nrog cov khoom siv network uas twb muaj lawm thiab ua tau raws li cov kev xav tau ntawm cov tshuab virtual kom txav tau yooj yim hla DCs.; Siv ntu routing ntawm DCI's IP sab nraud network los ua txoj kev tsheb khiav raws li qhov kev sib txawv ntawm kev lag luam, ua tau raws li qhov yuav tsum tau ua ntawm cross-DC egress kev pom kev, kev kho kom ceev ceev, thiab kev siv bandwidth siab;Lub hauv paus kev sib txuas lus sib koom tes nrog ntau qhov kev sib txuas ntawm OXC, Piv nrog rau cov pa ROADM tam sim no, nws tuaj yeem paub txog cov kev pabcuam nplua-grained txoj kev teem sijhawm ua haujlwm;kev siv cov tshuab hluav taws xob tsis siv hluav taws xob hloov pauv wavelength tuaj yeem daws qhov teeb meem ntawm fragmentation ntawm channel spectrum peev txheej.Kev sib koom ua ke ntawm cov txheej txheem sab saud thiab cov txheej txheem qis rau kev tswj hwm kev lag luam thiab kev xa tawm, hloov pauv tau yooj yim, thiab txhim kho kev siv cov peev txheej yuav yog ib qho kev coj tsis tau yav tom ntej.Tam sim no, qee lub tuam txhab loj hauv tebchaws tau saib xyuas rau thaj chaw no, thiab qee lub tuam txhab pib tshwj xeeb twb tau tshawb fawb thiab tsim cov khoom lag luam ntsig txog.Cia siab tias yuav pom cov kev daws teeb meem tag nrho ntawm kev ua lag luam xyoo no.Tej zaum nyob rau yav tom ntej, OTN tseem yuav ploj mus hauv cov kab ke hauv chav kawm, tawm hauv DWDM nkaus xwb.
Post lub sij hawm: Feb-15-2023