Ngokusho kwalezi zici, kunezixazululo ezimbili ezivamile ze-DCI:
1. Sebenzisa imishini ye-DWDM emsulwa, bese usebenzisa i-color optical module + i-DWDM multiplexer/demultiplexer kuswishi. Endabeni ye-single-channel 10G, izindleko ziphansi kakhulu, futhi izinketho zomkhiqizo ziningi. I-10G color light module itholakala ekhaya. Sele ikhiqizwe kakade, futhi izindleko seziphansi kakhulu (eqinisweni, uhlelo lwe-10G DWDM lwaqala ukuthandwa eminyakeni embalwa edlule, kodwa ngokufika kwezinye izidingo ze-bandwidth ezinkulu, kwadingeka ukuthi isuswe, futhi i-100G color light module yayingakatholakali. Yavela.) Njengamanje, i-100G isanda kuqala ukuvela kumamojula ahlobene ne-color optical eShayina, futhi izindleko aziphansi ngokwanele, kodwa izohlala inegalelo elikhulu kunethiwekhi ye-DCI.
2. Sebenzisa imishini ye-OTN yokudlulisa enamandla aphezulu, ingu-220V AC, imishini engu-19-intshi, ukuphakama okungu-1 ~ 2U, futhi ukufakwa kulula kakhulu. Umsebenzi we-SD-FEC uvaliwe ukuze kuncishiswe ukubambezeleka, futhi ukuvikelwa komzila kungqimba olubonakalayo kusetshenziselwa ukuthuthukisa ukuzinza, kanti isikhombikubona esingalawuleka esibheke enyakatho sithuthukisa nekhono lokuthuthukiswa kwemisebenzi yokwandisa imishini. Kodwa-ke, ubuchwepheshe be-OTN busagodliwe, futhi ukuphathwa kusazoba nzima kakhulu.
Ngaphezu kwalokho, lokho abakhi benethiwekhi ye-DCI yesigaba sokuqala abakwenzayo njengamanje ikakhulukazi ukuhlukanisa inethiwekhi yokudlulisa ye-DCI, okuhlanganisa ukuhlukanisa i-optical ku-layer 0 kanye ne-electric ku-layer 1, kanye ne-NMS kanye nemishini yehadiwe yabakhiqizi bendabuko. Indlela yendabuko ukuthi imishini yokucubungula kagesi yomkhiqizi othile kumele ibambisane nemishini efanayo ye-optical yomkhiqizi, kanye nemishini yehadiwe kumele ibambisane nesofthiwe ye-NMS yomkhiqizi yokuphatha. Le ndlela yendabuko inezinkinga eziningana ezinkulu:
1. Ubuchwepheshe buvaliwe. Ngokwethiyori, izinga le-optoelectronic lingahlukaniswa komunye nomunye, kodwa abakhiqizi bendabuko abahlukanisi ngamabomu ukuze balawule igunya lobuchwepheshe.
2. Izindleko zenethiwekhi yokudlulisa ye-DCI zigxile kakhulu engqimbeni yokucubungula isignali kagesi. Izindleko zokuqala zokwakha zesistimu ziphansi, kodwa lapho umthamo wanda, umenzi uzokhuphula intengo ngaphansi kosongo lobuchwepheshe obuhlukile, futhi izindleko zokwandisa zizokwenyuka kakhulu.
3. Ngemva kokuthi ungqimba olubonakalayo lwenethiwekhi yokudlulisa i-DCI selusetshenziswe, lungasetshenziswa kuphela yimishini yengqimba kagesi yomkhiqizi ofanayo. Izinga lokusetshenziswa kwezinsizakusebenza zemishini liphansi, elingahambisani nesiqondiso sokuthuthukiswa kokuhlanganiswa kwezinsizakusebenza zenethiwekhi, futhi alihambisani nokuhlela izinsizakusebenza zengqimba oluhlanganisiwe lwe-optical. Ungqimba oluhlanganisiwe lwe-optical lutshalwe ngokwehlukana esigabeni sokuqala sokwakhiwa, futhi alunqunyelwe ukusetshenziswa kwesikhathi esizayo kohlelo lwengqimba olulodwa lwe-optical ngabakhiqizi abaningi, futhi luhlanganisa isikhombimsebenzisi esibheke enyakatho sengqimba yokukhanya nobuchwepheshe be-SDN ukwenza ukuhlela isiqondiso kwezinsizakusebenza zesiteshi kungqimba lokukhanya, Thuthukisa ukuguquguquka kwebhizinisi.
4. Imishini yenethiwekhi ixhumana ngokungenamthungo neplatifomu yokuphathwa kwenethiwekhi yenkampani ye-inthanethi ngqo ngesakhiwo sedatha se-YANGmodel, esisindisa ukutshalwa kwezimali kwepulatifomu yokuphathwa futhi sisuse isofthiwe ye-NMS enikezwa umenzi, okuthuthukisa ukusebenza kahle kokuqoqwa kwedatha nokuphathwa kwenethiwekhi.
Ngakho-ke, ukuhlukanisa i-optoelectronic kuyindlela entsha yokuthuthukiswa kwenethiwekhi yokudlulisa i-DCI. Esikhathini esizayo esibonakalayo, ungqimba lwe-optical lwenethiwekhi yokudlulisa i-DCI lungaba ubuchwepheshe be-SDN obuhlanganiswe ne-ROADM+ i-interface esenyakatho-eningizimu, futhi isiteshi singavulwa, sihlelwe futhi sitholakale ngokungahleliwe. Kuzokwenzeka ukusebenzisa amadivayisi kagesi ahlanganisiwe abakhiqizi, noma ngisho nokusetshenziswa okuxubile kwe-Ethernet interfaces kanye ne-OTN interfaces ohlelweni olufanayo lwe-optical. Ngaleso sikhathi, ukusebenza kahle komsebenzi maqondana nokwandiswa kwesistimu kanye noshintsho kuzothuthukiswa kakhulu, futhi ungqimba lwe-optical luzosetshenziswa futhi. Kulula ukuhlukanisa, ukuphathwa kwe-logic yenethiwekhi kucacile, futhi izindleko zizoncishiswa kakhulu.
Ku-SDN, isisekelo esiyinhloko ukuphathwa okuphakathi kanye nokwabiwa kwezinsizakusebenza zenethiwekhi. Ngakho-ke, yiziphi izinsizakusebenza zenethiwekhi yokudlulisa i-DWDM ezingaphathwa kunethiwekhi yokudlulisa ye-DCI yamanje?
Kuneziteshi ezintathu, izindlela, kanye nobubanzi bomkhawulokudonsa (imvamisa). Ngakho-ke, ukukhanya ngokubambisana kokukhanya + i-IP empeleni kwenziwa ngokuphathwa nokusatshalaliswa kwala maphuzu amathathu.
Iziteshi ze-IP ne-DWDM ziyahlukaniswa, ngakho-ke uma ubudlelwano obuhambisanayo phakathi kwesixhumanisi se-IP esinengqondo kanye nesiteshi se-DWDM buhlelwe esigabeni sokuqala, futhi ubudlelwano obuhambisanayo phakathi kwesiteshi ne-IP budinga ukulungiswa kamuva, ungasebenzisa i-OXC. Indlela isetshenziselwa ukwenza ukushintsha kwesiteshi okusheshayo ezingeni le-millisecond, okungenza ungqimba lwe-IP lungazi. Ngokuphathwa kwe-OXC, ukuphathwa kwesiteshi sokudlulisa esisetshenziswa endaweni ngayinye kungabonakala, ukuze kubambisane ne-SDN yebhizinisi.
Ukulungiswa kokuhlukaniswa kwesiteshi esisodwa kanye ne-IP kuyingxenye encane nje. Uma ucabanga ukulungisa i-bandwidth ngenkathi ulungisa isiteshi, ungaxazulula inkinga yokulungisa izidingo ze-bandwidth yezinsizakalo ezahlukene ngezikhathi ezahlukene. Thuthukisa kakhulu izinga lokusetshenziswa kwe-bandwidth eyakhelwe. Ngakho-ke, ngenkathi uxhumanisa ne-OXC ukulungisa isiteshi, kuhlanganiswe ne-multiplexer kanye ne-demultiplexer yobuchwepheshe begridi eguquguqukayo, isiteshi esisodwa asisenawo ubude be-wavelength obuqondile obuphakathi, kodwa sivumela ukuthi simboze ububanzi bemvamisa obungalinganiswa, ukuze kufezwe ukulungiswa okuguquguqukayo kosayizi we-bandwidth. Ngaphezu kwalokho, esimweni sokusebenzisa izinsizakalo eziningi ku-topology yenethiwekhi, izinga lokusetshenziswa kwemvamisa yesistimu ye-DWDM lingathuthukiswa kakhulu, futhi izinsiza ezikhona zingasetshenziswa ekugcwalisweni.
Ngamakhono okuphatha aguquguqukayo amabili okuqala, ukuphathwa kwendlela yenethiwekhi yokudlulisa kungasiza yonke i-topology yenethiwekhi ukuthi ibe nokuzinza okuphezulu. Ngokwezici zenethiwekhi yokudlulisa, indlela ngayinye inezinsizakusebenza zesiteshi sokudlulisa ezizimele, ngakho-ke kubaluleke kakhulu ukuphatha nokwabela iziteshi endleleni ngayinye yokudlulisa ngendlela ehlangene, okuzohlinzeka ngokukhethwa kwezindlela ezifanele zezinsizakalo zezindlela eziningi, futhi kukhulise ukusetshenziswa kwezinsizakusebenza zesiteshi kuzo zonke izindlela. Njengaku-ASON, igolide, isiliva nethusi kuhlukaniswa ngezinsizakalo ezahlukene ukuqinisekisa ukuzinza kwezinga eliphezulu lezinsizakalo.
Isibonelo, kunenethiwekhi yendandatho eyakhiwe izikhungo ezintathu zedatha u-A, u-B, no-C. Kukhona isevisi i-S1 (njengesevisi yedatha enkulu ye-intranet), kusukela ku-A kuya ku-B kuya ku-C, ethatha amagagasi angu-1 ~ 5 ale nethiwekhi yendandatho, igagasi ngalinye linomkhawulokudonsa ongu-100G, kanti isikhawu sokuvama singu-50GHz; kukhona isevisi i-S2 (isevisi yenethiwekhi yangaphandle), Kusukela ku-A kuya ku-B kuya ku-C, amagagasi angu-6 ~ 9 ale nethiwekhi yendandatho asetshenziswa, igagasi ngalinye linomkhawulokudonsa ongu-100G, kanti isikhawu sokuvama singu-50GHz.
Ezikhathini ezijwayelekile, lolu hlobo lomkhawulokudonsa kanye nokusetshenziswa kwesiteshi kungahlangabezana nesidingo, kodwa uma ngezinye izikhathi, isibonelo, isikhungo sedatha esisha sengezwa, futhi ibhizinisi lidinga ukuhambisa isizindalwazi ngesikhathi esifushane, khona-ke isidingo somkhawulokudonsa we-intranet kulesi sikhathi sizoba kabili, umkhawulokudonsa wokuqala we-500G (5 100G), manje udinga umkhawulokudonsa we-2T. Ngemuva kwalokho iziteshi ezingeni lokudlulisela zingabalwa kabusha, futhi iziteshi ezinhlanu ze-400G zifakwa kungqimba lwamagagasi. Isikhawu semvamisa yesiteshi ngasinye se-400G sishintshwa kusuka ku-50GHz yokuqala kuya ku-75GHz. Nge-ROADM eguquguqukayo ye-grating kanye ne-multiplexer/demultiplexer, yonke indlela ezingeni lokudlulisela, ngakho-ke lezi ziteshi ezinhlanu zithatha izinsiza ze-spectrum ze-375GHz. Ngemva kokuba izinsiza ezingeni lokudlulisa sezilungile, lungisa i-OXC ngeplatifomu yokuphatha ephakathi, bese ulungisa iziteshi zokudlulisa ezisetshenziswa amagagasi okuqala angu-1-5 ezibonakaliso zesevisi ze-100G kuya ku-5 ezisanda kulungiswa ngokubambezeleka kwezinga le-millisecond. Isiteshi sesevisi se-400G siyakhuphuka, ukuze umsebenzi wokulungiswa okuguquguqukayo kwe-bandwidth kanye nesiteshi ngokwezidingo zesevisi ye-DCI uqedwe, okungenziwa ngesikhathi sangempela. Vele, izixhumi zenethiwekhi zamadivayisi e-IP zidinga ukusekela imisebenzi yokulungiswa kwe-100G/400G rate adjustable kanye ne-optical signal frequency (wavelength), okungeke kube yinkinga.
Ngokuphathelene nobuchwepheshe benethiwekhi ye-DCI, umsebenzi ongaqedwa ngokudlulisela uphansi kakhulu. Ukuze kufezwe inethiwekhi ye-DCI ehlakaniphe kakhudlwana, kudingeka yenziwe kanye ne-IP. Isibonelo, sebenzisa i-MP-BGP EVPN+VXLAN ku-intranet ye-IP ye-DCI ukuze usheshe usebenzise inethiwekhi yesendlalelo sesi-2 kuwo wonke ama-DC, engahambisana kakhulu namadivayisi enethiwekhi akhona futhi ihlangabezane nezidingo zemishini ebonakalayo yokuqasha ukuze ihambe ngokuguquguqukayo kuwo wonke ama-DC. ;Sebenzisa umzila wezingxenye kunethiwekhi yangaphandle ye-IP ye-DCI ukwenza ukuhlela umzila wethrafikhi ngokusekelwe ekuhlukaniseni kwebhizinisi lomthombo, ukuhlangabezana nezidingo zokuboniswa kwethrafikhi enqamula i-DC, ukubuyiselwa komzila okusheshayo, kanye nokusetshenziswa kwe-bandwidth ephezulu; inethiwekhi yokudlulisela engaphansi ibambisana nohlelo lwe-OXC olunezinhlangothi eziningi, uma kuqhathaniswa ne-ROADM yamanje evamile, ingafeza umsebenzi wokuhlela umzila wesevisi oqondile; ukusetshenziswa kobuchwepheshe bokuguqula ubude besikhathi sokudlulisela obungebona ugesi kungaxazulula inkinga yokuhlukaniswa kwezinsiza ze-channel spectrum. Ukuhlanganiswa kwezinsiza zesendlalelo esiphezulu nezisendlalelo eziphansi zokuphathwa kwebhizinisi nokuthunyelwa, ukuthunyelwa okuguquguqukayo, kanye nokusetshenziswa kwezinsiza okuthuthukisiwe kuzoba yisiqondiso esingenakugwenywa esikhathini esizayo. Njengamanje, ezinye izinkampani ezinkulu zasekhaya ziyayinaka le ndawo, kanti ezinye izinkampani ezikhethekile ezisafufusa sezivele zenza ucwaningo kanye nokuthuthukiswa kwemikhiqizo yobuchwepheshe ehlobene. Ngiyethemba ukubona izixazululo ezihlobene emakethe kulo nyaka. Mhlawumbe maduze nje, i-OTN izonyamalala futhi kumanethiwekhi ekilasi labathwali, kusale i-DWDM kuphela.
Isikhathi sokuthunyelwe: Feb-15-2023