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