Kuyini i-DCI Box

Umsuka wenethiwekhi ye-DCI

 Ekuqaleni, isikhungo sedatha sasilula, sinamakhabethe ambalwa + ama-air conditioner ambalwa ane-P ephezulu ekamelweni elingahleliwe, bese kuba namandla edolobha elilodwa elivamile + ama-UPS ambalwa, futhi saba isikhungo sedatha. Kodwa-ke, lolu hlobo lwesikhungo sedatha luncane ngobukhulu futhi luphansi ngokuthembeka. I-inthanethi, ebilokhu ithuthuka kakhulu kusukela ekupheleni kwawo-1990, nayo inyuse isidingo sezikhungo zedatha. Ngakho-ke, kunenkinga engaxazululeki kulolu hlobo lwesikhungo sedatha: isikhala esinganele, ukunikezwa kwamandla okunganele, ukungasebenzi kahle, kanye nesiqinisekiso se-SLA, okwenza abasebenzisi baqale ukuthola esinye isikhungo sedatha sokusetshenziswa kwebhizinisi. Ngalesi sikhathi, isikhungo sedatha esisha kanye nesikhungo sedatha esidala saqala ukuba nezidingo zokuxhumeka kwenethiwekhi, okwaholela kunethiwekhi yokuqala ye-DCI, okungukuthi, i-Data Center Inter-connect, ehlanganisa ubuchwepheshe ezingeni lenethiwekhi ebonakalayo kanye nezinga lenethiwekhi enengqondo.

 Inethiwekhi yokuqala ye-DCI yaxhunywa ngqo nge-inthanethi. Kamuva, uma kucatshangelwa ukuphepha, kwasetshenziswa ukubethela, kwacatshangelwa ikhwalithi yesevisi, kwasetshenziswa imigqa ezinikele, futhi i-bandwidth yaxhunywa ngqo nge-fiber optical.

Ukuthuthukiswa kwenethiwekhi ye-DCI

Ukuthuthukiswa kwamanethiwekhi e-DCI kusukela ekuxhumekeni kwe-inthanethi, kuya emigqeni eminingana enikezelwe ku-M, kuya ekuxhumekeni kwe-WDM okuningi kwe-10T yamanje akuthathi isikhathi eside, ngomqondo oqondile, kuyimpendulo ekuthuthukisweni kwe-inthanethi. Ekuqaleni, abasebenzisi basebenzisa umhubhe we-VPN wenethiwekhi yomphakathi ukudlulisa izinsizakalo zabo ngqo ngenethiwekhi yomphakathi. Le ndlela ithintwa yizindawo ezahlukahlukene zenethiwekhi yomphakathi (ukuxinana kwe-bandwidth yenethiwekhi yomhlaba wonke, umzila ophansi, i-liner jitter, ukusetha kabusha izixhumanisi, i-firewall, njll.) Ithonywe yizindleko nezindleko, ifanele ithrafikhi encane, izidingo zekhwalithi ye-bandwidth ephansi, izidingo ezingezona zesikhathi sangempela, kanye nezokuphepha eziphansi. Kamuva, ibhizinisi esikhungweni sedatha ladonsa ukunakwa okwengeziwe, futhi ibhizinisi laqala ukwandisa kancane kancane ukuthunyelwa, futhi inani lamaseva landa ngokulandelana. Ngemva kokuba inani elikhulu lezinsizakalo selifakiwe, lezi zinsizakalo ezidluliselwa ngenethiwekhi zinomthelela okhulayo ezinkampanini nasezimbonini, ngakho-ke izidingo zenethiwekhi nazo ziya ngokuya zikhuphuka, okokuqala zibonakala ekuzinzeni kwe-bandwidth kanye nezixhumanisi, ngakho abasebenzisi besikhungo sedatha baqala ukusebenzisa imigqa enikezelwe yisekethe yomqhubi eqashiwe, imigqa enikezelwe yi-MSTP ethwalwa kunethiwekhi ye-SDH isiqalile ukuthengisa kahle ngenxa yokuzinza kwayo okuphezulu, i-bandwidth enkulu, kanye nezinga eliphezulu lokuphindaphinda komqhubi.

Kamuva, ngentuthuko eqhubekayo yebhizinisi, idatha phakathi kwezikhungo zedatha yaqala ukuba nezidingo zokulibaziseka kanye nokuphindaphindeka, ikakhulukazi kumakhasimende ezezimali, ayenezidingo eziphakeme kakhulu zokulibaziseka, ngakho-ke izidingo zemigqa ezinikele nazo zazikhona.

noma, abasebenzisi baqala ukudinga ubuncane obukhulu, njenge-bandwidth ye-2.5G, i-10G single-link, futhi badinga nokuvikelwa kwe-dual-routing ukuqinisekisa ukuthi i-LSA ifinyelela ku-4 kuya ku-5 9s.

 Noma kunjalo, amandla okuthuthukiswa kwe-inthanethi ayamangalisa, futhi izitayela zebhizinisi ezifana nokudluliselwa kwelogi kanye nokuvumelanisa isizindalwazi ziyakhula. Uma kucatshangelwa izindleko, isikhathi sokulethwa, ikhwalithi yesevisi, njll., izinkampani eziphezulu (ikakhulukazi izinkampani ze-inthanethi ezinedatha enkulu njenge-Google ne-FB) seziqalile ukwakha amanethiwekhi e-DCI ngokuqasha imicu ye-optical engenalutho ngaphandle kwabasebenzi. Ekuqaleni kokusebenzisa imicu ye-optical engenalutho, kwakuyindlela futhi yokusebenzisa isignali eyodwa nge-optical fiber eyodwa. Isibonelo, imicu ye-optical engasebenzisa imojuli ye-10G ZR ukudlulisa amakhilomitha angu-80 kude. Kodwa-ke, ububi bale ndlela ukuthi ngakolunye uhlangothi, inani lokusetshenziswa kwe-optical fiber liyanda ngokuhambisana ne-bandwidth, futhi izindleko ziyanda; Inkinga ende futhi enzima), futhi ngalesi sikhathi, i-bandwidth ye-10G ye-fiber eyodwa ayikwazi ukuhlangabezana nezidingo zokukhula kwebhizinisi, ngakho-ke inethiwekhi ye-DCI yaqala inkathi ye-WDM.

Esikhathini se-WDM, kwavela izindlela ezimbili kunethiwekhi ye-DCI, okungukuthi, i-coarse wavelength division CWDM kanye ne-dense wavelength division DWDM. Ngokusekelwe ekucabangeleni izindleko, abanye abasebenzisi bokuqala basebenzise amamojula e-optical e-10G CWDM ekuxhumaneni kwe-DCI besebenzisa ubuchwepheshe be-CWDM. Kodwa-ke, lolu hlelo lusekela amagagasi afinyelela ku-16 e-10G, futhi i-EDFA ayikwazi ukukhulisa isignali ku-wavelength ye-CWDM. , futhi ibanga layo lokudlulisa elingasebenzi nalo lilinganiselwe kakhulu. Ngakho-ke, njengoba isidingo sokudluliselwa kwedatha enkulu siqhubeka nokukhula, abasebenzisi kufanele baqale ukusebenzisa izinhlelo ze-DWDM ezinamandla aphezulu kanye nokusebenza.