Xa abanini beziko ledatha bakha unxibelelwano lwenethiwekhi yeziko ledatha, baqwalasela ikakhulu imiba efana ne-bandwidth enkulu, i-latency ephantsi, uxinano oluphezulu, ukuthunyelwa ngokukhawuleza, ukusebenza okulula nokugcinwa, kunye nokuthembeka okuphezulu. Okwangoku, itekhnoloji ye-OTN enkulu esetyenziswa kakhulu ilawulwa ikakhulu ngabavelisi bezixhobo ze-telecom ezinkulu (iitships zixoxwa ngokwahlukeneyo), ezifana neHuawei, i-ZTE, kunye ne-Aran. Abathengi abaphambili abajongene nabo ngabaqhubi be-telecom bendabuko, ngoko ke iimpawu zemveliso ze-OTN zenzelwe kakhulu ukuhlangabezana neempawu zenkonzo zaba baqhubi. Ngenxa yoku, i-OTN isetyenziswa ngakumbi kwizicelo zenethiwekhi ze-DCI kushishino lwe-Intanethi. Iingxaki ezininzi ezingavumelaniyo.
Iimpawu zezixhobo ze-OTN ziingxaki ezifanayo ezidibana ne-DCI, iindleko zoshishino ezityebileyo, amandla e-OAM aqinileyo enethiwekhi, amandla okucwangcisa kunye nokudibanisa amandla ee-bandwidths ezahlukeneyo ze-granular, ukunyamezela iimpazamo zomgca phantsi kweemeko zomgama omde, kunye nokusetyenziswa kombane othe ngqo we-voltage ephantsi. Iimpawu ezifana nesantya esiphantsi sokusetyenziswa kwamandla kwezixhobo.
1. Amandla okusebenzisa imali eninzi kwishishini afuna abasebenzi be-O&M babe ziingcali ngakumbi, bathembele ngakumbi kwinkxaso yobugcisa evela kubavelisi, kwaye babe netekhnoloji evaliweyo ngakumbi.
2. Amandla e-OAM anamandla, imigangatho engaguqukiyo, unxibelelwano olunzima noluzimeleyo ngakumbi neenethiwekhi ezinqamlezileyo, kunye nemisebenzi engenamsebenzi nazo zizisa iindleko zothumelo kunye nokusebenza kwinethiwekhi ye-DCI.
3. Iindlela ezahlukeneyo zokuhlela iigranule zenza ukuba isakhiwo sesakhelo se-encapsulation senkonzo sibe nzima ngakumbi kwaye sibe nee-byte ezifakwe ngaphakathi.
4. Ukunyamezelana kweempazamo zomgca omde kwenza i-algorithm ye-FEC ibe yinkimbinkimbi, isebenzise imali engaphezulu kwaye ithatha ixesha elide ukuyicubungula
5. Indlela yokubonelela ngombane ye-48V-DC yezixhobo ze-OTN yahlukile kwiikhabhathi eziqhelekileyo ze-19-intshi ze-220V-AD (okanye i-240V-DC) ezisetyenziswa kwiindawo ezininzi zedatha. Ukufakelwa kwayo kuyinkimbinkimbi kwaye kufuna ukuguqulwa kombane kwigumbi leekhompyutha.
6. Izixhobo zemveli ze-OTN zinesakhelo esikhulu, esingafanelekanga ukufakwa kwiikhabhathi eziqhelekileyo, kwaye uxinano lwamandla aluphezulu. Ukwandiswa kamva kuyakhathaza kwaye kufuna ukuba iikhabhathi zifuduswe okanye zakhiwe ngokutsha.
Okwangoku, inethiwekhi yethu ye-DCI yenzelwe ukubonelela ngemibhobho yedatha yeziko ledatha elihambahambayo. Iimpawu eziphambili zemodeli yeshishini zezi: iimfuno ze-bandwidth ezidibeneyo kunye ne-single bandwidth granularity, i-bandwidth enkulu, iinkonzo zeziko ledatha elihambahambayo (ingakumbi i-IDC esebenzayo emininzi, iinkonzo zedatha enkulu)) ineemfuno ze-latency ephantsi kunye neemfuno eziphezulu zokuzinza kwenethiwekhi; kwangaxeshanye, ngenxa yokunqongophala kwabasebenzi abafanelekileyo abaziingcali nabanobuchwephesha kushishino lwe-Intanethi, ukusebenza kunye nokugcinwa kweenethiwekhi ze-DCI kufuneka kube "lula" "kulula" kwaye "kulula" - izinto ezibalulekileyo zithethwa kathathu (apho ayilulo uhlobo lwenethiwekhi?); uphuhliso oluqhumayo lwe-Intanethi lwenza iimfuno zomjikelo wokwakha nowokwandisa zibe mfutshane (umjikelo wokwandiswa kwe-OTN yabaqhubi ngokubanzi uphakathi kwesiqingatha sonyaka ukuya kunyaka omnye, ngelixa iimfuno zokwandiswa kwe-DCI ye-Intanethi ziyinyanga e-1 ukuya kwe-3), Ke ngoko, kuyimfuneko ukucinezela ixesha kuzo zonke iinkalo.
Ngoko ke, i-OTN ibonelela ngesisombululo esisebenzisekayo kwi-DCI, kodwa i-OTN ayisosisombululo sifanelekileyo kwi-DCI. Ngoku ekubeni inethiwekhi ye-DCI ikhula ngokukhawuleza, kukho isidingo esikhulayo sezisombululo ezifanelekileyo zokusombulula iingxaki ukusuka kwiindleko ukuya kulwakhiwo, ukusebenza kunye nokugcinwa. iingxaki ezahlukeneyo ezidibene nazo. Kwaye ezi ngxaki azikho nto ngaphandle kweemfuno ezintandathu zenethiwekhi ye-DCI (i-bandwidth enkulu, i-latency ephantsi, uxinano oluphezulu, ukuthunyelwa ngokukhawuleza, ukusebenza okulula kunye nokugcinwa, kunye nokuthembeka okuphezulu):
1. I-bandwidth enkulu, inethiwekhi yokudlulisa i-DCI ayinazo iintlobo zeegranule ezityebileyo njengabasebenza, iigranule ze-bandwidth zenethiwekhi yokudlulisa i-DCI zilula, okwangoku zisetyenziswa rhoqo yi-10G okanye i-100G, kwixesha elizayo yi-200G/400G, njl.njl., ngoko akukho mfuneko yokwenza oku nge-bandwidth enkulu ye-bandwidth kwezinye iigranularities. Ngenxa yokuba uluhlu lomgama wenethiwekhi yokudlulisa i-DCI ngokubanzi alukho mde kakhulu, kusetyenziswa inkqubo ye-400G esekwe kwi-200G PM-16QAM dual-carrier modulation, umgama wokudlulisa ngaphandle kwe-electrical relay unokuba malunga neekhilomitha ezingama-500 (PM-64QAM malunga neekhilomitha ezingama-200), ukuze ukudluliselwa kwe-metro backbone ye-DCI kungathintelwa ngumgama.
2. I-low latency, iimfuno zeshishini le-DCI, ngakumbi xa i-cloud computing isetyenziselwa ukuhlanganisa izixhobo kunye namaziko edatha asebenzayo amaninzi, i-latency ibalwa kwinqanaba le-microsecond, ngoko ke ixesha lokudlulisa idatha kufuneka libe lifutshane kangangoko, lifuna ukudlula isantya sokukhanya. Susa umsebenzi wokucubungula idatha ongeyomfuneko kwaye unciphise iindlela zokudlulisa isignali. Umzekelo, ngokususa umsebenzi we-SD-FEC osetyenziswa yi-100G OTN, i-back-to-back enye inokonga ii-microsecond ezingama-200, kwaye ukususa i-cross-level OTN encapsulation kunokonga amashumi ee-microsecond, kwaye isebenzise i-hubspoke topology kwiinkonzo eziphambili ukuqinisekisa indlela emfutshane. Ewe, inokusebenzisana ne-MPLS kunye ne-QOS kwinqanaba le-IP ukuzama ukuqinisekisa ukuba ukulibaziseka kwinqanaba lokudlulisela idatha kukwangcono.
3. Uxinano oluphezulu, i-U enye, okanye i-2U, inokufikelela kwi-bandwidth ukuya kuthi ga kwi-T, i-DWDM optical layer kunye ne-electric signal layer decoupling, iphucule i-density interface yesixhobo, kwaye inciphise ubungakanani be-optical module. Umzekelo, ukusetyenziswa kwee-QSFP28 optical modules kunokuqinisekisa ukuba amandla okufikelela kwi-100G yesixhobo esinye aphucukile kakhulu, kwaye ukusetyenziswa kwee-CFP2 daylighting modules kwicala lomgca kunokuqinisekisa ukuba i-transmission bandwidth yesixhobo siphela iphuculwe, i-1U ingaba yi-1.6T, i-3.2T. Okwangoku, iimveliso ezininzi ezinxulumene noko ziye zavela kwihlabathi, ezifana ne-ADVA, i-coriant, i-ciena kunye nezinye iinkampani. Kakade ke, iHuawei yasekhaya ikwaqalise iimveliso ezinxulumene ne-902. Nangona kunjalo, njengoko kugqitywa eli nqaku, kubonakala ngathi uvavanyo lokufikelela kwinethiwekhi lweSebe lezoShishino kunye neTekhnoloji yoLwazi alukagqitywa. Uxinano oluphezulu luya kubangela ukusetyenziswa kwamandla aphezulu kunye nokuchithwa kobushushu. Ngoko ke, indlela yokuqala yokusasaza ubushushu ye-OTN yomoya ophumayo nowasekhohlo, kunye nomoya ophumayo nowaphezulu nowehlayo kufuneka ilahlwe.
Iimfuno zokupholisa isixhobo.
4. Ukusasazwa ngokukhawuleza, kusetyenziswa i-rack ye-IDC eyi-19-intshi esemgangathweni yangoku, efana neyamaseva aqhelekileyo, kusetyenziswa i-AC-220V yokubonelela ngombane ngokuthe ngqo, kususa imfuneko yokuguqulwa kwamandla kunye nekhabhinethi, kwaye kuqondwe ukuba iimpahla zingafakwa kwiishelufu kwangoko emva kokuba zifikile kwigumbi lekhompyutha, kwaye zinokucwangciswa emva kokufakwa kombane. ishishini, kwaye zenze umsebenzi olungileyo kumsebenzi wokwamkelwa oqhelekileyo ukuze kufezekiswe ukusasazwa ngokukhawuleza.
5. Ukusebenza nokugcinwa okulula, iimfuno zemodeli yeshishini le-DCI, umgama phakathi kwamaziko edatha awuyi kuba kude kakhulu, kwaye ulawulo oluntsonkothileyo, i-OAM kunye neminye imisebenzi ayifuneki ukuba idlale indima enkulu kule meko, kwaye ukucubungula okuntsonkothileyo nako kuyancitshiswa. Kuphucula ukusebenza kakuhle kokudluliselwa kwedatha, kuphucula ixesha lokucubungula idatha, kwaye kuneemfuno eziphezulu zobuchwepheshe kwaye kuvaliwe ngakumbi. Ukudibanisa imiqondiso ngokuthe ngqo nge-Ethernet kususa ukugqithisa okuntsonkothileyo kwe-OTN, ngoko ke iinjineli zenethiwekhi ze-IP zemveli zinokusebenzisa kwaye zigcine inkqubo ye-DCI. Emva kokudibanisa ii-interfaces ezintsha eziya emantla ezifana ne-YANG model, i-REST API, kunye ne-netconf, ulawulo lwezixhobo zokudlulisa i-DCI kunye nolawulo lwezixhobo zenethiwekhi ye-IP ziyaphuhliswa nge-interface efanayo, ukuze kuqhutywe ngcono ulawulo lwenethiwekhi oludibeneyo olusekwe kwiqonga elidibeneyo.
6. Ukuthembeka okuphezulu, iindlela ezininzi kunye nobuchwepheshe bokukhusela obungaziyo umaleko ongaphezulu buza kuqhubeka nokudlala indima kuthungelwano lothumelo lwe-DCI. Ukusilela kwinqanaba lekhonkco elingaphantsi akufuneki kube nefuthe kwiinkonzo ngaphandle kokuba kuphazamiseke ngokupheleleyo. Ukuqonda okanye impembelelo, nokuba kukutshintsha ukhuseleko, ukujija kwekhonkco, ukwanda kokulibaziseka, njl.njl.
Ixesha lokuthumela: Februwari-13-2023