Menene Akwatin DCI

Asalin hanyar sadarwar DCI

 A farko, cibiyar bayanai ta kasance mai sauƙi, tare da kabad kaɗan + 'yan kwandishan masu ƙarfi a cikin ɗaki bazuwar, sannan wutar lantarki ta birni guda ɗaya + wasu UPS, kuma ta zama cibiyar bayanai. Duk da haka, wannan nau'in cibiyar bayanai ƙarami ne kuma ba shi da aminci. Intanet, wacce ke ci gaba da bunƙasa tun ƙarshen shekarun 1990, ta kuma ƙara buƙatar cibiyoyin bayanai. Saboda haka, akwai matsala da ba za a iya warwarewa ba a cikin wannan nau'in cibiyar bayanai: rashin isasshen sarari, Rashin isasshen wutar lantarki, babu ƙarin aiki, da kuma garantin SLA, wanda ya sa masu amfani suka fara neman wani cibiyar bayanai don tura kasuwanci. A wannan lokacin, sabuwar cibiyar bayanai da tsohuwar cibiyar bayanai sun fara samun buƙatun haɗin hanyar sadarwa, wanda ya haifar da hanyar sadarwa ta DCI ta farko, wato, Haɗin Cibiyar Bayanai, wanda ya haɗa da fasahohi a matakin hanyar sadarwa ta zahiri da matakin hanyar sadarwa mai ma'ana.

 An haɗa hanyar sadarwa ta farko ta DCI kai tsaye ta Intanet. Daga baya, dangane da tsaro, an yi amfani da ɓoye bayanai, an yi la'akari da ingancin sabis, an yi amfani da layukan da aka keɓe, kuma an haɗa bandwidth kai tsaye ta hanyar fiber na gani.

Ci gaban hanyar sadarwa ta DCI

Ci gaban hanyoyin sadarwa na DCI daga haɗin Intanet, zuwa layuka da yawa na M, zuwa haɗin WDM mai yawa-10T na yanzu ba lokaci ne mai tsawo ba, a zahiri, martani ne ga ci gaban Intanet. Da farko, masu amfani suna amfani da ramin VPN na hanyar sadarwa ta jama'a don aika ayyukan su kai tsaye ta hanyar hanyar sadarwar jama'a. Wannan hanyar tana shafar yanayi daban-daban na hanyar sadarwar jama'a (cinkoson bandwidth na cibiyar sadarwa ta duniya, ƙarancin hanyar sadarwa, jitter na layi, sake saita hanyar haɗi, firewall, da sauransu). Sakamakon farashi da farashi, ya dace da ƙananan zirga-zirga, ƙarancin buƙatun ingancin bandwidth, ba na ainihin lokaci ba, da ƙarancin buƙatun tsaro. Daga baya, kasuwancin da ke cikin cibiyar bayanai ya jawo hankali sosai, kuma kasuwancin ya fara ƙara yawan turawa a hankali, kuma adadin sabar ya ƙaru a layi. . Bayan an tura ayyuka da yawa, waɗannan ayyukan da aka watsa ta hanyar hanyar sadarwa suna da tasiri mai yawa ga kamfanoni da masana'antu, don haka buƙatun hanyar sadarwar suna ƙaruwa da girma, da farko ana nuna su a cikin bandwidth da kwanciyar hankali na hanyar sadarwa, don haka masu amfani da cibiyar bayanai sun fara yin hayar layukan da aka keɓe na mai aiki, layukan da aka keɓe na MSTP da aka ɗauka akan hanyar sadarwar SDH sun fara siyarwa da kyau saboda babban kwanciyar hankali, babban bandwidth, da babban matakin multiplexing na mai aiki.

Daga baya, tare da ci gaba da haɓaka kasuwanci mai fashewa, bayanai tsakanin cibiyoyin bayanai sun fara samun buƙatun jinkiri da sake aiki, musamman ga abokan cinikin kuɗi, waɗanda ke da manyan buƙatu na jinkiri, don haka buƙatun layukan keɓewa suma an haɗa su.

ya ƙaru; Ko kuma, masu amfani sun fara buƙatar babban girman bayanai, kamar 2.5G, 10G bandwidth mai haɗin kai ɗaya, kuma suna buƙatar kariyar hanya biyu don tabbatar da cewa LSA ta kai 4 zuwa 5 9s.

 Duk da haka, ƙarfin ci gaban Intanet yana da ban mamaki, kuma yanayin kasuwanci kamar watsa log da daidaitawar bayanai yana ƙaruwa. Dangane da farashi, lokacin isarwa, ingancin sabis, da sauransu, manyan kamfanoni (musamman kamfanonin Intanet masu manyan bayanai kamar Google da FB) sun fara gina hanyoyin sadarwa na DCI ta hanyar hayar zaruruwan gani marasa waya ba tare da masu aiki ba. A farkon amfani da zaruruwan gani marasa waya, ita ce kuma hanyar gudanar da sigina ɗaya ta hanyar zaruruwan gani guda ɗaya. Misali, zaruruwan gani guda biyu na iya amfani da na'urar ZR ta 10G don watsa kilomita 80. Duk da haka, rashin amfanin wannan hanyar shine a gefe guda, adadin amfani da zaruruwan gani yana ƙaruwa a layi tare da zaruruwan gani, kuma farashin yana ƙaruwa; Matsala ce mai daɗewa da wahala), kuma a wannan lokacin, zaruruwan gani guda 10G na zaruruwa ɗaya ba zai iya biyan buƙatun ci gaban kasuwanci ba, don haka hanyar sadarwa ta DCI ta fara zamanin WDM.

A zamanin WDM, hanyoyi guda biyu sun bayyana a cikin hanyar sadarwar DCI, wato, sashin tsawon tsayi mai kauri CWDM da kuma sashin tsawon tsayi mai yawa DWDM. Dangane da la'akari da farashi, wasu masu amfani da farko sun yi amfani da kayan aikin gani na 10G CWDM don haɗin DCI ta amfani da fasahar CWDM. Duk da haka, wannan tsarin yana tallafawa har zuwa raƙuman 16 na 10G, kuma EDFA ba zai iya ƙara siginar a tsawon tsayi na CWDM ba. , kuma nisan relay ɗinsa mai wucewa shima yana da iyaka. Saboda haka, yayin da buƙatar watsa bayanai masu yawa ke ci gaba da ƙaruwa, masu amfani dole ne su fara amfani da tsarin DWDM tare da babban ƙarfin aiki da aiki.