Zvichienderana nehunhu uhwu, kune mhinduro mbiri dzeDCI dzakajairika:
1. Shandisa michina yeDWDM yakachena, uye shandisa color optical module + DWDM multiplexer/demultiplexer paswitch. Kana iri single-channel 10G, mutengo wayo wakaderera zvikuru, uye sarudzo dzezvigadzirwa dzakawanda. 10G color light module iri mudzimba. Yakatogadzirwa, uye mutengo wayo watove wakaderera zvikuru (kutaura chokwadi, 10G DWDM system yakatanga kufarirwa makore mashoma apfuura, asi nekusvika kwezvimwe zvinodiwa zvebandwidth yakakura, yaifanira kubviswa, uye 100G color light module yakanga isati yavapo. Yakaonekwa.) Parizvino, 100G ichangotanga kuoneka muChina ine chekuita necolor optical modules, uye mutengo wayo hauna kuderera zvakakwana, asi inogara ichipa mupiro wakasimba kune network yeDCI.
2. Shandisa michina ye OTN inotumirwa nemagetsi akawanda, ine 220V AC, 19-inch, 1~2U yakakwirira, uye kuiswa kwayo kuri nyore. Basa re SD-FEC rinodzimwa kuderedza kunonoka, uye dziviriro yekufambisa pa optical layer inoshandiswa kuvandudza kugadzikana, uye interface inodzorwa nekuchamhembe inovandudzawo kugona kwekuvandudza mabasa ekuwedzera michina. Zvisinei, tekinoroji ye OTN ichiri yakachengetwa, uye manejimendi acharamba akaomarara.
Pamusoro pezvo, zviri kuitwa nevagadziri veDCI network vekutanga parizvino kuparadzanisa network yekutumira yeDCI, kusanganisira kupatsanura optical padanho 0 uye yemagetsi padanho 1, pamwe neNMS nemidziyo yehardware yevagadziri vekare. Maitiro echinyakare ndeekuti michina yekugadzira magetsi yemugadziri mumwe chete inofanira kushanda pamwe chete nemidziyo ye optical yemugadziri mumwe chete, uye michina ye hardware inofanira kushanda pamwe chete nesoftware yeNMS yemugadziri wekutarisira. Iyi nzira yechinyakare ine zvipingamupinyi zvakakura:
1. Tekinoroji yakavharwa. Mudzidziso, nhanho ye optoelectronic inogona kupatsanurwa kubva kune mumwe nemumwe, asi vagadziri vekare havapatsanurwi nemaune kuitira kuti vatonge simba retekinoroji.
2. Mutengo weDCI transmission network unonyanya kutariswa mu electrical signal processing layer. Mutengo wekutanga wekuvaka sisitimu wakaderera, asi kana simba rayo rawedzerwa, mugadziri achawedzera mutengo pasi pekutyisidzirwa kwehunyanzvi hwakasiyana, uye mutengo wekuwedzera uchawedzerwa zvakanyanya.
3. Mushure mekunge optical layer yeDCI transmission network yashandiswa, inogona kushandiswa chete nemidziyo yemagetsi yemugadziri mumwe chete. Mwero wekushandiswa kwemidziyo wakaderera, izvo zvisingaenderane negwara rekugadzirwa kwenetwork resource pooling, uye hazvikodzeri kuronga kwakabatana kweoptical layer resource. Optical layer yakaparadzaniswa inoiswa yoga pakutanga kwekuvaka, uye haiganhurirwi nekushandiswa kwesystem imwe chete ye optical layer nevagadziri vakawanda mune ramangwana, uye inosanganisa kuchamhembe kweoptical layer neSDN technology kuti iite direction scheduling ye channel resources pa optical layer, Kuvandudza kuchinjika kwebhizinesi.
4. Midziyo yenetwork inobatanidza zvakanaka nepuratifomu yekambani yeInternet yekuronga network zvakananga kuburikidza nehurongwa hwedata hweYANGmodel, iyo inochengetedza mari yekuvandudza puratifomu yekuronga uye inobvisa software yeNMS inopihwa nemugadziri, izvo zvinovandudza kushanda zvakanaka kwekuunganidza data uye manejimendi.
Saka, optoelectronic decoupling inzira itsva yekuvandudza network yekutumira yeDCI. Munguva inotevera, optical layer yeDCI transmission network inogona kuva tekinoroji yeSDN inoumbwa neROADM+ kuchamhembe-kumaodzanyemba, uye chiteshi chinogona kuvhurwa, kurongwa uye kudzoserwa zvisina tsarukano. Zvichakwanisika kushandisa michina yemagetsi yakasanganiswa yevagadziri, kana kunyange kushandisa Ethernet interfaces neOTN interfaces pane imwe optical system. Panguva iyoyo, kushanda zvakanaka kwekushanda maererano nekuwedzera kwesystem nekuchinja kuchavandudzwa zvikuru, uye optical layer ichashandiswawo. Zviri nyore kusiyanisa, manejimendi ye network logic yakajeka, uye mutengo uchaderedzwa zvakanyanya.
Kune SDN, chinangwa chikuru ndechekutarisira pamwe chete uye kugovera zviwanikwa zve network. Saka, ndezvipi zviwanikwa zve network ye DWDM transmission zvinogona kutarisirwa pane network ye DCI iripo?
Kune nzira nhatu, nzira, uye bandwidths (frequency). Saka, chiedza chinoshanda pamwe chete nechiedza + IP chinonyatsoitwa pakutonga nekugoverwa kwenzvimbo idzi nhatu.
Nzira dzeIP neDWDM dzakapatsanurwa, saka kana hukama hunoenderana pakati peIP logical link neDWDM channel hwakagadzirwa pakutanga, uye hukama hunoenderana pakati pechiteshi neIP huchida kugadziriswa gare gare, unogona kushandisa OXC. Nzira iyi inoshandiswa kuita fast channel switching padanho re millisecond, izvo zvinogona kuita kuti IP layer isazivikanwe. Kuburikidza ne manejimendi yeOXC, manejimendi ye transmission channel panzvimbo yega yega inogona kuitwa, kuitira kuti ishande pamwe chete nebhizinesi SDN.
Kugadziriswa kwechiteshi chimwe chete neIP chikamu chidiki chete. Kana ukafunga kugadzirisa bandwidth uchigadzirisa chiteshi, unogona kugadzirisa dambudziko rekugadzirisa zvinodiwa zvebandwidth yemasevhisi akasiyana munguva dzakasiyana. Wedzera zvakanyanya mwero wekushandiswa kwebandwidth yakavakwa. Saka, paunenge uchironga neOXC kugadzirisa chiteshi, pamwe chete nemultiplexer ne demultiplexer ye flexible grid technology, chiteshi chimwe chete hachina wavelength yakatarwa pakati, asi chinochibvumira kufukidza frequency range inogona kukwira, kuitira kuti uwane Flexible adjustment yehukuru hwebandwidth. Uyezve, kana uchishandisa masevhisi akawanda mu network topology, frequency use rate yeDWDM system inogona kuvandudzwa zvakanyanya, uye zviwanikwa zviripo zvinogona kushandiswa mukuzara.
Nekugona kwekutonga kwakasimba kwezvikamu zviviri zvekutanga, manejimendi yenzira yekutumira inogona kubatsira kuti network yese ive nekugadzikana kwakanyanya. Zvichienderana nehunhu hwenetwork yekutumira, nzira yega yega ine zviwanikwa zvenzira yekutumira zvakazvimiririra, saka zvakakosha zvikuru kutarisira nekugovera nzira panzira yega yega yekutumira nenzira yakabatana, iyo ichapa sarudzo yakakwana yenzira dzemasevhisi enzira dzakawanda, uye kuwedzera kushandiswa kwezviwanikwa zvenzira panzira dzese. Kufanana neASON, goridhe, sirivha nemhangura zvinosiyaniswa nekuda kwemasevhisi akasiyana kuti ive nechokwadi chekugadzikana kwenzvimbo yepamusoro yebasa.
Semuenzaniso, kune network yering inoumbwa nenzvimbo nhatu dzedata A, B, naC. Kune service S1 (yakadai se intranet big data service), kubva kuA kusvika kuB kusvika kuC, inotora mawave 1~5 enetwork iyi yering, wave yega yega ine bandwidth ye100G, uye frequency interval i50GHz; kune service S2 (external network service), Kubva kuA kusvika kuB kusvika kuC, mawave 6~9 enetwork iyi yering anotorwa, wave yega yega ine bandwidth ye100G, uye frequency interval i50GHz.
Munguva dzakajairika, rudzi urwu rwebandwidth uye kushandiswa kwechiteshi zvinogona kugutsa kudiwa, asi dzimwe nguva, semuenzaniso, kana nzvimbo itsva yedata ikawedzerwa, uye bhizinesi richida kutamisa dhatabhesi munguva pfupi, ipapo kudiwa kwebandwidth yeintranet munguva ino kuchave kwakapetwa kaviri, bandwidth yekutanga ye500G (5 100G), ikozvino inoda bandwidth ye2T. Zvadaro nzira dziri padanho rekutumira dzinogona kuverengerwazve, uye nzira shanu dze400G dzinoiswa muwave layer. Nguva yefrequency yechiteshi chega chega che400G inochinjwa kubva pa50GHz yekutanga kuenda ku75GHz. Ne flexible grating ROADM uye multiplexer/demultiplexer, nzira yese iri padanho rekutumira, saka nzira idzi shanu dzinotora zviwanikwa zve375GHz spectrum. Mushure mekunge zviwanikwa padanho rekutumira zvagadzirwa, gadzirisa OXC kuburikidza nepuratifomu yekutonga yakamiswa pakati, uye gadzirisa nzira dzekutumira dzinoshandiswa nemafungu ekutanga e1-5 ezviratidzo zvebasa re100G kune 5 itsva yakagadzirwa nekunonoka kwechikamu chemillisecond. Nzira yekushandira ye400G inokwira, kuitira kuti basa rekugadzirisa bandwidth nechiteshi zvinoenderana nezvinodiwa nebasa reDCI rapedzwa, izvo zvinogona kuitwa munguva chaiyo. Ehe, network connectors dzezvishandiso zveIP dzinofanirwa kutsigira mabasa ekugadzirisa 100G/400G rate adjustable uye optical signal frequency (wavelength), izvo hazvizove dambudziko.
Nezve tekinoroji yenetwork yeDCI, basa rinogona kuitwa nekutumira data rakaderera zvikuru. Kuti uwane network yeDCI yakangwara, inofanira kuitwa pamwe chete neIP. Semuenzaniso, shandisa MP-BGP EVPN+VXLAN paIP intranet yeDCI kuti uise network yelayer 2 pakati peDCs, iyo inogona kushanda zvakanyanya nemidziyo yenetwork iripo uye inosangana nezvinodiwa zvemuchina wekarenda kuti ufambe zviri nyore pakati peDCs. ;Shandisa nzira yezvikamu paDCI's IP external network kuti uite traffic path scheduling zvichibva pakusiyana kwebhizinesi, kusangana nezvinodiwa zve cross-DC egress traffic visualization, fast route restoration, uye high bandwidth utilities; substitute transmission network inoshanda pamwe chete ne multi-dimensional OXC system, Zvichienzaniswa ne ROADM yazvino, inogona kuita fine-grained service path scheduling function; kushandiswa kwetekinoroji ye transmission wavelength conversion technology kunogona kugadzirisa dambudziko rekupatsanurwa kwe channel spectrum resources. Kubatanidzwa kwe upper-layer ne lower-layer resources for business management and deployment, flexible deployment, uye better resource utilities kuchava gwara risingadzivisike mune ramangwana. Parizvino, mamwe makambani makuru emuno ari kutarisisa nyaya iyi, uye mamwe makambani matsva ari kutoita tsvakiridzo nekugadzira zvigadzirwa zvehunyanzvi zvine chekuita nazvo. Ndinovimba kuona mhinduro dzakabatana dziri pamusika gore rino. Pamwe munguva pfupi iri kutevera, OTN ichanyangarikawo muma network emakambani ekutakura, zvichisiya DWDM chete.
Nguva yekutumira: Kukadzi-15-2023