Tom qab DCI network qhia txog OTN thev naus laus zis, nws zoo ib yam li ntxiv ib daim haujlwm tag nrho uas tsis tau muaj ua ntej hauv kev ua haujlwm. Lub network chaw khaws ntaub ntawv ib txwm yog IP network, uas yog rau logical network technology. OTN hauv DCI yog ib txheej thev naus laus zis, thiab yuav ua li cas ua haujlwm nrog IP txheej hauv txoj kev phooj ywg thiab yooj yim yog txoj hauv kev ntev rau kev ua haujlwm.
Tam sim no, lub hom phiaj ntawm kev ua haujlwm raws li OTN yog tib yam li txhua lub subsystem ntawm lub chaw khaws ntaub ntawv. Lawv txhua tus yog tsom rau kev ua kom zoo tshaj plaws ntawm cov peev txheej uas tau nqis peev rau hauv cov khoom siv kim heev thiab muab kev txhawb nqa zoo tshaj plaws rau cov kev pabcuam upstream. Txhim kho kev ruaj khov ntawm lub hauv paus system, pab txhawb kev ua haujlwm zoo thiab kev saib xyuas, pab txhawb kev faib cov peev txheej kom zoo, ua rau cov peev txheej uas tau nqis peev ua lub luag haujlwm loj dua, thiab faib cov peev txheej uas tsis tau nqis peev kom tsim nyog.
Kev ua haujlwm ntawm OTN feem ntau muaj ntau ntu: kev tswj cov ntaub ntawv ua haujlwm, kev tswj cov cuab tam, kev tswj kev teeb tsa, kev tswj lub tswb ceeb toom, kev tswj kev ua tau zoo, thiab kev tswj DCN.
1 Cov Ntaub Ntawv Ua Haujlwm
Ua cov ntaub ntawv txog cov ntaub ntawv txhaum, paub qhov txawv ntawm tib neeg cov txhaum, cov khoom siv kho vajtse tsis zoo, cov software tsis zoo, thiab cov neeg thib peb cov txhaum, thiab ua kev tshuaj xyuas cov ntaub ntawv txog cov hom kev txhaum loj, tsim cov phiaj xwm ua tiav, thiab ua kom txoj hauv kev rau kev ua tiav cov kev txhaum tom qab kev teeb tsa tus qauv yav tom ntej. Raws li kev tshuaj xyuas cov ntaub ntawv txhaum, lub kaw lus tau ua kom zoo rau kev ua haujlwm yav tom ntej xws li kev tsim qauv vaj tsev thiab kev xaiv khoom siv, kom txo tau tus nqi ntawm kev ua haujlwm tom qab thiab kev saib xyuas. Rau OTN, ua cov ntaub ntawv txhaum los ntawm cov amplifiers optical, boards, modules, multiplexers, cross-device jumpers, trunk fibers, DCN networks, thiab lwm yam, koom nrog cov qhov ntev ntawm cov chaw tsim khoom, cov qhov ntev ntawm cov neeg thib peb, thiab lwm yam, thiab ua kev tshuaj xyuas cov ntaub ntawv ntau qhov ntev rau cov ntaub ntawv tseeb dua. Tuaj yeem qhia meej txog qhov xwm txheej ntawm lub network.
Ua cov ntaub ntawv txog cov ntaub ntawv hloov pauv, paub qhov nyuaj thiab qhov cuam tshuam ntawm qhov kev hloov pauv, faib cov neeg ua haujlwm, thiab hloov pauv raws li cov txheej txheem ntawm kev tshuaj xyuas qhov xav tau, txoj kev npaj hloov pauv, qhov rai teeb tsa, ceeb toom rau cov neeg siv, kev ua haujlwm, thiab kev tshuaj xyuas luv luv, thiab thaum kawg tuaj yeem ua cov kev hloov pauv sib txawv. Nws tau muab faib ua qhov rai, txawm tias npaj kom ua tiav thaum nruab hnub, yog li kev faib cov neeg ua haujlwm hloov pauv yog qhov tsim nyog dua, txo qhov kev nyuaj siab ntawm kev ua haujlwm thiab lub neej, thiab txhim kho kev zoo siab ntawm cov kws ua haujlwm. Nws kuj tseem tuaj yeem koom ua ke cov ntaub ntawv txheeb cais kawg thiab siv nws ua qhov siv rau kev ua haujlwm ntawm cov neeg ua haujlwm thiab kev muaj peev xwm ua haujlwm. Tib lub sijhawm, nws kuj tso cai rau kev hloov pauv ib txwm muaj los txhim kho hauv kev coj ua thiab kev ua haujlwm tsis siv neeg, txo ntau yam kev siv nyiaj.
Sau cov ntaub ntawv txog kev faib cov kev pabcuam OTN kom pab koj paub txog kev siv network thiab tswj kev faib network thoob plaws network thiab kev faib cov kev pabcuam tom qab cov lag luam nce ntxiv. Yog tias koj ua kom nws ntxhib, koj tuaj yeem paub tias kev pabcuam network twg uas ib txoj kev siv, xws li network sab nraud, intranet, HPC network, cloud service network, thiab lwm yam. Yog tias koj ua kom nws ntxaws ntxaws, koj tuaj yeem ua ke tag nrho cov txheej txheem ntws los tshuaj xyuas kev siv cov tsheb khiav lag luam tshwj xeeb. Cov nqi bandwidth sib txawv raug faib rau ntau lub chaw haujlwm lag luam sib txawv los pab lawv txhim kho cov tsheb khiav lag luam, rov ua dua thiab kho cov channel ua haujlwm tsawg txhua lub sijhawm, thiab nthuav cov channel lag luam siv ntau.
Cov ntaub ntawv ruaj khov ntawm cov ntaub ntawv, uas yog cov ntaub ntawv siv tseem ceeb rau SLA, kuj yog rab ntaj ntawm Damocles rau ntawm lub taub hau ntawm txhua tus neeg ua haujlwm thiab cov neeg saib xyuas. Cov ntaub ntawv ruaj khov ntawm OTN yuav tsum tau paub qhov txawv vim lawv tus kheej kev tiv thaiv. Piv txwv li, yog tias ib txoj kev raug cuam tshuam, tag nrho cov bandwidth ntawm IP txheej yuav tsis raug cuam tshuam, seb nws puas yuav suav nrog hauv SLA; yog tias IP bandwidth raug txiav ib nrab, tab sis kev lag luam yuav tsis raug cuam tshuam, seb nws puas yuav suav nrog hauv SLA; seb ib qho channel tsis ua haujlwm suav nrog hauv SLA; qhov nce ntawm txoj kev tiv thaiv qeeb tsis cuam tshuam rau network bandwidth, tab sis nws muaj kev cuam tshuam rau kev lag luam, seb nws puas suav nrog hauv SLA, thiab lwm yam. Kev coj ua dav dav yog qhia rau sab lag luam txog kev pheej hmoo xws li kev hloov pauv jitter thiab kev ncua ua ntej kev tsim kho. SLA tom qab yog xam raws li tus lej ntawm cov channel tsis zoo * bandwidth ntawm ib qho channel tsis zoo, faib los ntawm tag nrho cov channel * qhov sib npaug ntawm cov channel bandwidth sib xws, thiab tom qab ntawd muab los ntawm Raws li lub sijhawm cuam tshuam, tus nqi tau txais yog siv ua tus qauv xam ntawm SLA.
2 Kev Tswj Xyuas Cov Khoom Muaj Nqis
Cov khoom muaj nqis ntawm OTN cov khoom siv kuj xav tau kev tswj hwm lub neej (tuaj txog, online, pov tseg, kev ua txhaum), tab sis tsis zoo li cov servers, network switches thiab lwm yam khoom siv, cov qauv ntawm OTN cov khoom siv nyuaj dua. Cov khoom siv OTN muaj ntau lub rooj tsavxwm ua haujlwm, yog li nws yog qhov tsim nyog los tsim hom rau kev tswj hwm cov khoom muaj nqis tag nrho thaum lub sijhawm tswj hwm. Lub platform tswj hwm khoom muaj nqis IP tseem ceeb hauv chaw khaws ntaub ntawv yog raws li cov servers thiab switches, thiab qib master-slave yuav raug teeb tsa. Ntawm lub hauv paus ntawm OTN no, qib master-slave yuav muaj kev tswj hwm hierarchical, tab sis muaj ntau txheej. Qib kev tswj hwm feem ntau yog ua los ntawm network element-> subrack-> board card-> module:
2.1. Lub network element yog ib lub cuab yeej virtual, tsis muaj cov khoom siv lub cev. Nws yog siv rau kev tswj hwm thiab thawj qhov chaw logical hauv OTN network, thiab koom nrog thawj-theem unit hauv OTN network kev tswj hwm. Ib chav khoom siv lub cev yuav muaj ib qho NE lossis ntau NEs. Ib lub network element muaj ntau lub subracks, xws li optical layer subracks, electrical layer subracks, thiab external multiplexers thiab demultiplexers kuj raug suav hais tias yog ib lub subrack. Txhua lub subrack tuaj yeem txuas ua ke thiab koom nrog ib lub subrack hauv ib qho chaw network element. Numbering. Tsis tas li ntawd, lub network element tsis muaj tus lej SN khoom, yog li nws yuav tsum tau sib phim nrog lub platform tswj hwm hauv qhov no, tshwj xeeb tshaj yog nrog cov ntaub ntawv ntawm daim ntawv yuav khoom thiab lub platform tswj kev ua haujlwm thiab kev saib xyuas tom qab, kom tsis txhob muaj kev tshawb nrhiav khoom uas tsis sib xws. Tom qab tag nrho, lub network element yog ib lub virtual khoom. .
2.2. Lub cev loj tshaj plaws ntawm cov khoom siv OTN yog lub chassis, uas yog, lub subrack, uas yog nyob rau theem ob ntawm thawj theem network. Nws yog ib chav tsev theem ob, thiab ib qho network muaj tsawg kawg ib lub subrack. Cov subracks no tau muab faib ua ntau hom qauv ntawm ntau lub tuam txhab tsim khoom, nrog rau ntau yam haujlwm, suav nrog cov electronic subracks, photon subracks, general subracks, thiab lwm yam. Lub subrack muaj tus lej SN tshwj xeeb, tab sis nws tus lej SN tsis tuaj yeem tau txais los ntawm lub platform tswj network, thiab tsuas yog tuaj yeem kuaj xyuas ntawm qhov chaw. Nws tsis tshua muaj kev txav thiab hloov lub subrack tom qab nws mus online. Ntau lub rooj tsavxwm tau ntxig rau hauv lub subrack.
2.3. Sab hauv lub txee theem ob ntawm OTN, muaj cov qhov chaw pabcuam tshwj xeeb rau kev tso. Cov qhov chaw muaj cov lej thiab siv los ntxig ntau lub rooj tsavxwm pabcuam ntawm cov tes hauj lwm optical. Cov rooj tsavxwm no yog lub hauv paus rau kev txhawb nqa OTN cov kev pabcuam network, thiab txhua lub rooj tsavxwm tuaj yeem nug nws SN los ntawm lub kaw lus tswj hwm network. Cov rooj tsavxwm no yog cov chav tsev theem peb hauv kev tswj hwm cov cuab tam OTN. Ntau lub rooj tsavxwm lag luam muaj ntau qhov loj sib txawv, nyob hauv cov qhov sib txawv, thiab muaj cov haujlwm sib txawv. Yog li ntawd, thaum lub rooj tsavxwm xav tau muab rau lub txee theem ob, lub platform cuab tam yuav tsum tso cai rau ib lub rooj tsavxwm siv ntau lossis ib nrab qhov chaw kom sib xws rau cov lej qhov chaw ntawm lub txee theem.
2.4. Kev tswj cov khoom siv optical module. Cov modules nyob ntawm kev siv cov boards kev pabcuam. Txhua lub boards lag luam yuav tsum tso cai rau kev muaj optical module, tab sis tsis yog txhua lub boards khoom siv OTN yuav tsum tau txuas rau hauv optical modules, yog li cov boards kuj yuav tsum tau tso cai rau Tsis muaj module muaj. Txhua lub optical module muaj tus lej SN, thiab lub module ntxig rau ntawm lub board yuav tsum tau sib phim nrog tus lej chaw nres nkoj ntawm lub board rau kev tshawb nrhiav qhov chaw yooj yim.
Tag nrho cov ntaub ntawv no tuaj yeem sau los ntawm qhov sib txuas sab qaum teb ntawm lub platform tswj hwm network, thiab qhov tseeb ntawm cov ntaub ntawv khoom muaj peev xwm tswj tau los ntawm kev sau online thiab kev txheeb xyuas offline thiab kev sib phim. Tsis tas li ntawd, cov khoom siv OTN kuj suav nrog cov khoom siv kho qhov muag, cov jumpers luv luv, thiab lwm yam. Cov khoom siv no tuaj yeem tswj tau ncaj qha ua cov khoom siv.
Lub sijhawm tshaj tawm: Lub Kaum Ob Hlis-12-2022