Ngokwezi mpawu, kukho izisombululo ezimbini eziqhelekileyo zeDCI:
1. Sebenzisa izixhobo ezicocekileyo ze-DWDM, kwaye usebenzise imodyuli ye-optical color + DWDM multiplexer / demultiplexer kwi-switch.Kwimeko ye-single-channel 10G, ixabiso liphantsi kakhulu, kwaye ukhetho lwemveliso luninzi.Imodyuli yokukhanya kombala we-10G isekhaya Sele iveliswe, kwaye iindleko sele ziphantsi kakhulu (enyanisweni, inkqubo ye-10G DWDM yaqala ukuthandwa kwiminyaka embalwa edlulileyo, kodwa ngokufika kweemfuno ezinkulu ze-bandwidth, yayinayo. Ukupheliswa, kwaye imodyuli yokukhanya kombala we-100G yayingekafumaneki. Kuyabonakala.) Okwangoku, i-100G isanda kuqalisa ukubonakala kwiimodyuli ezihambelana nombala we-China, kwaye iindleko aziphantsi ngokwaneleyo, kodwa ziya kuhlala zinegalelo elinamandla. kwinethiwekhi yeDCI.
2. Sebenzisa izixhobo ze-OTN zogqithiso oluphezulu, ziyi-220V AC, izixhobo ze-intshi ye-19, i-1 ~ 2U ephezulu, kwaye ukuthunyelwa kulula ngakumbi.Umsebenzi we-SD-FEC ucinyiwe ukunciphisa ukulibaziseka, kwaye ukukhuselwa kwendlela kwi-optical layer isetyenziselwa ukuphucula ukuzinza, kunye ne-interface elawulwayo esenyakatho iphinde iphucule amandla ophuhliso lwemisebenzi yokwandisa izixhobo.Nangona kunjalo, itekhnoloji ye-OTN isagciniwe, kwaye ulawulo luseza kuba nzima.
Ukongeza, into eyenziwa ngabakhi bothungelwano lwe-DCI yenqanaba lokuqala okwangoku kukuqhawula uthungelwano lothumelo lwe-DCI, kubandakanywa ukudityaniswa kwe-optical kumaleko we-0 kunye nombane kwindawo ye-1, kunye ne-NMS kunye nezixhobo ze-hardware zabenzi bemveli. .ukudibanisa.Indlela eqhelekileyo yeyokuba isixhobo sokulungisa umbane somenzi othile kufuneka sisebenzisane nesixhobo sokukhanya somenzi omnye, kwaye izixhobo zehardware kufuneka zisebenzisane nesoftware yomnini yeNMS yolawulo.Le ndlela yesintu inemiqobo emininzi:
1. Iteknoloji ivaliwe.Kwithiyori, inqanaba le-optoelectronic linokudityaniswa ukusuka komnye nomnye, kodwa abavelisi bemveli abazenzi ngamabomu ukuze balawule igunya lobuchwephesha.
2. Iindleko zenethiwekhi yothumelo ye-DCI igxininiswe ikakhulu kumgangatho wokulungiswa kombane.Iindleko zokuqala zokwakha zenkqubo ziphantsi, kodwa xa umthamo wandiswa, umenzi uya kuphakamisa ixabiso phantsi kwesongelo sobuchwephesha obubodwa, kwaye iindleko zokwandiswa ziya kwandiswa kakhulu.
3. Emva kokuba i-optical layer ye-DCI transmission network isetyenziswe, ingasetyenziselwa kuphela izixhobo zombane zombane zomenzi ofanayo.Izinga lokusetyenziswa kwezixhobo zokusebenza liphantsi, elingahambelaniyo nesikhokelo sophuhliso lokudityaniswa kwezixhobo zothungelwano, kwaye alukho ulungelelwaniso lwenkqubo yobutyebi bomaleko obumanyanisiweyo.Umaleko we-optical odityanisiweyo utyalwe ngokwahlukileyo kwinqanaba lokuqala lokwakha, kwaye awukhawulelwanga kusetyenziso lwexesha elizayo lwenkqubo enye ye-optical layer ngabavelisi abaninzi, kwaye udibanisa ujongano olusenyakatho lwemaleko optical kunye neteknoloji ye-SDN ukwenza ukucwangciswa kolwalathiso lwetshaneli. izixhobo kwi-optical layer , Ukuphucula ukuguquguquka kweshishini.
4. Isixhobo sothungelwano sidibanisa ngokungenamthungo kunye neqonga lolawulo lwenethiwekhi yenkampani ye-Intanethi ngokuthe ngqo kwisakhiwo sedatha yeYANGmodel, egcina utyalo-mali lophuhliso lweqonga lolawulo kunye nokuphelisa isoftware ye-NMS enikezelwe ngumenzi, ephucula ukusebenza kakuhle kokuqokelela idatha kunye ulawulo lwenethiwekhi.ulawulo olusebenzayo.
Ke ngoko, i-optoelectronic decoupling yindlela entsha yophuhliso lwenethiwekhi yokuhanjiswa kwe-DCI.Kwixesha elizayo elibonakalayo, i-optical layer ye-DCI yothumelo lwenethiwekhi inokuba yiteknoloji ye-SDN eyenziwe yi-ROADM + i-interface esemantla-ezantsi, kwaye umjelo unokuvulwa, ucwangciswe kwaye ubuyiselwe ngokungekho mthethweni.Kuya kwenzeka ukusebenzisa izixhobo zombane ezixubeneyo zabavelisi, okanye ukusetyenziswa okuxubeneyo kojongano lwe-Ethernet kunye nojongano lwe-OTN kwinkqubo efanayo yokubona.Ngelo xesha, ukusebenza kakuhle ngokumalunga nokwandiswa kwenkqubo kunye nokutshintsha kuya kuphuculwa kakhulu, kwaye i-optical layer iya kusetyenziswa.Kulula ukwahlula, ulawulo lwengqiqo yenethiwekhi lucacile, kwaye iindleko ziya kuncitshiswa kakhulu.
Kwi-SDN, isiseko esiphambili lulawulo oluphakathi kunye nolwabiwo lwemithombo yenethiwekhi.Ke, zithini izibonelelo zenethiwekhi yothumelo lwe-DWDM ezinokulawulwa kuthungelwano lwangoku lwe-DCI?
Kukho iziteshi ezintathu, iindlela, kunye ne-bandwidths (i-frequency).Ngoko ke, ukukhanya kwintsebenziswano yokukhanya + IP ngokwenene kuqhutyelwa malunga nolawulo kunye nokuhanjiswa kwezi ngongoma zintathu.
Iziteshi ze-IP kunye ne-DWDM zihlanjululwe, ngoko ke ukuba ubudlelwane obuhambelanayo phakathi kwekhonkco lengqiqo ye-IP kunye nesiteshi se-DWDM siqulunqwe kwinqanaba lokuqala, kwaye ubudlelwane obuhambelanayo phakathi kwesiteshi kunye ne-IP kufuneka bulungiswe kamva, ungasebenzisa i-OXC. Indlela isetyenziselwa ukwenza ukutshintshwa kwetshaneli ngokukhawuleza kwinqanaba le-millisecond, elinokwenza i-IP layer ingazi.Ngolawulo lwe-OXC, ulawulo olusembindini wemithombo yejelo lothumelo kwisiza ngasinye lunokuphunyezwa, ukuze kusetyenziswane ne-SDN yoshishino.
Ukulungelelaniswa kokulungiswa kwesiteshi esisodwa kunye ne-IP yinxalenye encinci kuphela.Ukuba ucinga ukulungelelanisa i-bandwidth ngelixa ulungelelanisa umjelo, unokusombulula ingxaki yokulungelelanisa iimfuno ze-bandwidth zeenkonzo ezahlukeneyo ngamaxesha ahlukeneyo.Ukuphucula kakhulu izinga lokusetyenziswa kwe-bandwidth eyakhelweyo.Ke ngoko, ngelixa unxibelelana ne-OXC ukulungelelanisa itshaneli, idityaniswe ne-multiplexer kunye ne-demultiplexer yetekhnoloji yegridi eguquguqukayo, itshaneli enye ayinayo i-wavelength esisigxina ephakathi, kodwa ivumela ukuba igubungele uluhlu lwamaza okukhawulezayo, ukuze kuphunyezwe ukulungiswa kweFlexible ubungakanani bebandwidth.Ngaphezu koko, kwimeko yokusebenzisa iinkonzo ezininzi kwi-topology yenethiwekhi, izinga lokusetyenziswa rhoqo kwenkqubo ye-DWDM inokuphuculwa ngakumbi, kwaye izibonelelo ezikhoyo zingasetyenziselwa ukugcwala.
Ngamandla olawulo oluguquguqukayo lwesibini sokuqala, ulawulo lwendlela yothungelwano lothumelo lunokunceda yonke i-topology yenethiwekhi ukuba ibe nokuzinza okuphezulu.Ngokweempawu zothumelo lwenethiwekhi, indlela nganye inezixhobo ezizimeleyo zothumelo lwejelo, ngoko ke kubaluleke kakhulu ukulawula nokwabela amajelo kwindlela nganye yothutho ngendlela emanyeneyo, eya kubonelela ngokukhethwa kwendlela efanelekileyo kwiinkonzo zeendlela ezininzi , kunye nokwandisa ukusetyenziswa kwemithombo yejelo kuzo zonke iindlela.Kanye nje nge-ASON, igolide, isilivere kunye nobhedu zihlukaniswa kwiinkonzo ezahlukeneyo zokuqinisekisa ukuzinza kwezinga eliphezulu leenkonzo.
Ngokomzekelo, kukho inethiwekhi yendandatho eyenziwe ngamaziko amathathu edatha A, B, kunye no-C. Kukho inkonzo ye-S1 (efana nenkonzo yedatha ye-intranet enkulu), ukusuka ku-A ukuya ku-B ukuya ku-C, ehlala i-1 ~ 5 yamaza ale nethiwekhi yendandatho, i-wave nganye ine-100G bandwidth, kunye ne-frequency interval yi-50GHz;kukho inkonzo ye-S2 (inkonzo yenethiwekhi yangaphandle), Ukusuka ku-A ukuya ku-B ukuya ku-C, amaza angama-6 ~ 9 ale nethiwekhi yendandatho ahlala, i-wave nganye ine-bandwidth ye-100G, kunye ne-frequency interval yi-50GHz.
Ngamaxesha aqhelekileyo, olu hlobo lwe-bandwidth kunye nokusetyenziswa kwesiteshi kunokuhlangabezana nemfuno, kodwa xa ngamanye amaxesha, umzekelo, indawo entsha yedatha yongezwa, kwaye ishishini lifuna ukufuduka kwisiseko sedatha ngexesha elifutshane, ngoko imfuno ye-intranet bandwidth in. eli xesha liya kuba Liphindwe kabini, i-500G yangaphambili ye-bandwidth (5 100G), ngoku ifuna i-2T bandwidth.Emva koko iziteshi kwinqanaba lokuhambisa zingaphinda zibalwe kwakhona, kwaye iziteshi ezinhlanu ze-400G zifakwe kwi-wave layer.Ixesha lekhefu lesiteshi ngasinye se-400G litshintshwa ukusuka kwi-50GHz yasekuqaleni ukuya kwi-75GHz.Nge-flexible grating ROADM kunye ne-multiplexer / demultiplexer, yonke Indlela kwinqanaba lokuhambisa, ngoko ke ezi ziteshi zintlanu zihlala kwi-375GHz spectrum resources.Emva kokuba izixhobo kumgangatho wokuhambisa zilungile, lungisa i-OXC ngokusebenzisa iqonga lolawulo eliphakathi, kwaye ulungelelanise iziteshi zokuhambisa ezisetyenziswa ngamaza e-1-5 yasekuqaleni yeempawu zenkonzo ye-100G kwi-5 esanda kulungiswa kunye nokulibaziseka kwe-millisecond Inkonzo ye-400G. umjelo uya phezulu, ukwenzela ukuba umsebenzi wohlengahlengiso oluguquguqukayo lwe-bandwidth kunye netshaneli ngokweemfuno zenkonzo ye-DCI igqityiwe, enokwenziwa ngexesha langempela.Ngokuqinisekileyo, i-network connectors yezixhobo ze-IP kufuneka zixhase i-100G / 400G izinga lokuguqulwa kunye ne-optical signal frequency (wavelength) imisebenzi yokulungelelanisa, engayi kuba yingxaki.
Ngokubhekiselele kwitekhnoloji yenethiwekhi ye-DCI, umsebenzi onokuthi ugqitywe ngokusasazwa ukwinqanaba eliphantsi kakhulu.Ukufezekisa inethiwekhi ye-DCI ekrelekrele ngakumbi, kufuneka iphunyezwe kunye ne-IP.Ngokomzekelo, sebenzisa i-MP-BGP EVPN+VXLAN kwi-intranet ye-IP ye-DCI ukuhambisa ngokukhawuleza inethiwekhi ye-2 kwi-DCs, enokuthi ihambelane kakhulu nezixhobo zenethiwekhi ezikhoyo kwaye ihlangabezane neemfuno zoomatshini abasebenzayo abaqeshiweyo ukuhamba ngokuguquguqukayo kwii-DCs.;Sebenzisa indlela yecandelo kuthungelwano lwangaphandle lwe-IP ye-DCI ukwenza ukucwangciswa kwendlela yezothutho esekwe kumthombo womahluko woshishino, ukuhlangabezana neemfuno zokubonwa kwetrafikhi ye-Cross-DC, ukubuyiselwa kwendlela ekhawulezayo, kunye nokusetyenziswa kobubanzi obuphezulu;inethiwekhi yothumelo engaphantsi isebenzisana nenkqubo ye-OXC ye-multi-dimensional, Xa kuthelekiswa ne-ROADM eqhelekileyo yangoku, inokuqonda umsebenzi wokucwangcisa indlela yenkonzo echanekileyo;ukusetyenziswa kobuchwephesha be-non-electric transmission wavelength kunokusombulula ingxaki yokuqhekeka kwemithombo ye-channel spectrum.Ukudityaniswa komgangatho ophezulu kunye nezixhobo ezisezantsi zolawulo lweshishini kunye nokuthunyelwa, ukuhanjiswa okuguquguqukayo, kunye nokusetyenziswa kwezixhobo eziphuculweyo kuya kuba ngulwalathiso olungenakuphepheka kwixesha elizayo.Okwangoku, ezinye iinkampani ezinkulu zasekhaya zinika ingqalelo kule ndawo, kwaye ezinye iinkampani ezikhethekileyo zokuqalisa sele ziqhuba uphando kunye nophuhliso lweemveliso zobugcisa ezinxulumeneyo.Ndiyathemba ukubona izisombululo ezinxulumene ngokubanzi kwimarike kulo nyaka.Mhlawumbi kwixesha elizayo elingekude, i-OTN nayo iya kunyamalala kuthungelwano lweklasi yenkampani, ishiye kuphela i-DWDM.
Ixesha lokuposa: Feb-15-2023