"Ukhuphiswano olukhulu" yeyona ndlela ilungileyo yokubonakalisa imakethi yezixhobo ze-DWDM zoThutho oluBonisayo. Nangona iyimakethi enkulu, enobunzima obuyi-$15 yeebhiliyoni, kukho abavelisi beenkqubo abamalunga nama-20 abathatha inxaxheba ngokuzimisela ekuthengiseni izixhobo ze-DWDM kwaye bakhuphisana ngamandla ukuze bafumane isabelo semakethi. Oko kuthethiweyo, ama-90 ekhulwini emakethi aphethwe ngabathengisi abasixhenxe kuphela, eshiya i-10 ekhulwini kubathengisi abaseleyo, kwaye naphakathi kwabasixhenxe abaphambili, i-delta yesabelo semakethi inkulu—amanqaku angama-25 ekhulwini phakathi komthengisi omkhulu nomncinci.
Ubungakanani benkampani kunye notyalo-mali zizinto eziphambili ezahlulahlula imarike, apho phakathi kwabathengisi abaphambili, ngaphandle kweFiberHome, bonke batyale imali ekudibaniseni ngokuthe nkqo kwizinto ezisecaleni komgca ezifana ne-DSP edibeneyo kunye ne-optical front end. Akubonakali ngathi i-optical front end isekelwe kwiSilicon Photonics (SiPh) okanye kwi-Indium Phosphide (InP) nangona iingcali zoshishino ziqhubeka nokuxoxa ngezi teknoloji zimbini. Into egqibayo kukuba inkampani iphuhlise iteknoloji yangaphakathi eyahlula iimveliso kwezinye, yehlisa iindleko zemveliso yayo, kwaye inika inkampani ixesha elingcono lokuthengisa. Ngaphezu koko, ekubeni kuthatha umlinganiselo omkhulu kunye nezixhobo (imali, abantu, kunye nepropathi yengqondo) ukuphuhlisa ezi zinto, ukuhlanganiswa ngokuthe nkqo kudala umqobo kubantu abatsha (kwanabadala).
Ukutshintshwa kweMveliso kuyafumaneka
Njengamashishini amaninzi, amandla angaphandle kwishishini le-Optical Transport kukutshintshwa kwemveliso. Nangona ukutshintshwa kwemveliso kwakungengomngcipheko wokwenene kwiminyaka emininzi eyadlulayo, ngenxa yeenzuzo ezisisiseko ekusebenzeni kunye neendleko zobuchwepheshe be-DWDM kunye nemida yenqanaba lenkqubo ekufakweni kwetekhnoloji ye-DWDM kwiqonga elikufutshane, ixesha liqala ukujika kancinci nge-optics encinci ye-form factor 400ZR pluggable. Ngenxa yezi optics zintsha ezipluggable kwi-form factor ye-QSFP-DD enokudlulisa ubude be-400 Gbps ukuya kuthi ga kwi-120 km, silindele umdla okhulayo kwi-IP-over-DWDM (IPoDWDM), oluyilo lwenkqubo olubandakanya ii-optics ze-DWDM kwi-Ethernet Switch okanye kwi-Router. Oku, ngaphandle kokuthetha, kuya kunyusa umgangatho wokhuphiswano kwindawo yezixhobo ze-DWDM njengoko abathengi begqiba phakathi kokusebenzisa inkqubo ye-DWDM yendabuko evela kubathengisi bethu abangama-20 be-DWDM okanye inkqubo ye-IPoDWDM evela kwabanye abathengisi abatshintshayo. (Abathengisi abaphambili be-Ethernet Switch kunye ne-Router baquka i-Arista, i-Cisco, i-Juniper, kunye ne-Nokia).
Nangona kunjalo, i-400ZR iya kuba luncedo nakubathengisi be-optical DWDM. Esinye isizathu kukuba ayingabo bonke abaqhubi abaya kufuna ukutshintsha inethiwekhi yabo ibe yi-IPoDWDM kwaye baya kukhetha ukusebenzisa ii-optics ezixhunywayo ze-400ZR kwinkqubo ye-DWDM, begcina uyilo lwenethiwekhi lungatshintshanga kangako ngelixa bezuza kwixabiso eliphantsi le-400ZR optics. Kodwa esinye isizathu kukuba i-400ZR yiteknoloji ehambelanayo kwaye ke ngoko iinkampani ezityale imali kule teknoloji kwiminyaka elishumi edlulileyo zikulungele kakuhle ukujongana nale thuba litsha. Ngenxa yoko, abavelisi be-400ZR pluggable optics baqulunqwe kakhulu ziinkampani ezinembali ende ekuphuhlisweni kweenkqubo ze-DWDM ezihambelanayo, ezifana neCiena, iCisco, kunye neNokia. IHuawei yayinenjongo yokuphuhlisa i-400ZR nayo, kodwa asiqinisekanga ukuba imiqathango yase-US kwinkampani iya kuyilibazisa na le mizamo.
Abathengi Bakhetha Ababoneleli Bendawo Xa Bekho
Ngandlela thile oku akukudalanga kwaye akukutsha, kodwa kubalulekile ukuphinda kuthiwe ngokubanzi abathengi bakhetha ukuthenga izixhobo kumthengisi wasekuhlaleni. Kule tshathi, imakethi yezixhobo ze-DWDM yehlabathi yahlulwe yaba yimimandla emikhulu kunye nabathengisi ababonelela kummandla othile. Ubungakanani bebhokisi bubonisa isabelo sabathengisi kuloo mmandla, kwaye iibhokisi ezinombala oluhlaza ngabathengisi abathathwa njengabahlali basekhaya kuloo mmandla. Akumangalisi ukuba kwimimandla emibini—eMntla Melika naseTshayina—apho kukho inani elikhulu labathengisi basekhaya, inani elikhulu leentengiso ze-DWDM liya kwezi nkampani zasekhaya. Ngenxa yokuxubana okukhulu kweenkampani “kwabanye,” andizange ndizifake umthunzi kwezo bhokisi, kodwa eMntla Melika naseTshayina uninzi “lwabanye” ziinkampani zasekhaya.
Okunokuba nomdla ziibhokisi ezingenamthunzi. Isizathu kukuba emva kokuba i-US ibeke imiqathango kwi-ZTE ngo-2018 nakutshanje iHuawei, ababoneleli beenkonzo kwimimandla enenani elikhulu leebhokisi ezingenamthunzi (abathengisi abangengabo abasekhaya) baxhalabile ngakumbi ngokubonelela ngezixhobo. Ngenxa yoko, ababoneleli beenkonzo bajonge ukunciphisa umngcipheko ngokunciphisa ukuxhomekeka kuye nawuphi na umthengisi kunye nokwandisa ingqalelo yababoneleli basekuhlaleni. Ngeendlela ezininzi, oku kuya kuba luncedo kwiinkampani ezincinci ezikwimimandla yasekuhlaleni efana neTejas eIndiya, iPadtec eCALA, kunye nePacketLight e-EMEA. Nangona kunjalo, ngenxa yokunciphisa umngcipheko, ababoneleli beenkonzo abakhulu banokuqhubeka nokuthenga uninzi lwezixhobo kubavelisi abakhulu be-DWDM abanobukhulu kunye netekhnoloji yokuxhasa imizamo yabo yexesha elizayo.
Imeko Eguqukayo Yoshishino
Mhlawumbi eyona ndlela ilungileyo yokuchaza imeko yeshishini lezixhobo ze-optical WDM kulo nyaka "yi-dynamic." Nditsho oku kuba ngokungafaniyo nexesha elidlulileyo xa amandla oshishino ayefana unyaka nonyaka, amandla amatsha avela kwishishini le-optical kulo nyaka anokuyitshintsha ngokuguquguqukayo. Ngokukodwa, amandla amatsha endithetha ngawo kukuphila okuphezulu kokutshintshwa kwemveliso nge-IPoDWDM enikwe amandla yi-400ZR kwiplagi ye-QSFP-DD kunye notshintsho kwindlela yokuziphatha kwabathengi oludalwe zizenzo zikarhulumente wase-US kubavelisi baseTshayina ezinokutshintsha imeko yabathengisi kwiindawo ezithile ngokuhamba kwexesha.
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Ixesha lokuthumela: Julayi-22-2021