Menene DCI Box

Asalin cibiyar sadarwa na DCI

 A farkon, cibiyar bayanai ta kasance mai sauƙi, tare da ƴan kabad + ƴan na'urorin kwantar da iska na P a cikin daki bazuwar, sannan ikon gari ɗaya na gama gari + kaɗan UPS, kuma ya zama cibiyar bayanai.Duk da haka, irin wannan cibiyar bayanai ƙanana ce a cikin sikeli kuma ƙarancin aminci.Intanet, wacce ke tasowa cikin hauka tun karshen shekarun 1990, ita ma ta kara yawan bukatar cibiyoyin bayanai.Sabili da haka, akwai matsala da ba za a iya warwarewa ba a cikin irin wannan cibiyar bayanai: rashin isasshen sarari , Rashin isasshen wutar lantarki, babu sakewa, kuma babu garantin SLA, yana sa masu amfani su fara samun wani cibiyar bayanai don ƙaddamar da kasuwanci.A wannan lokacin, sabon cibiyar bayanai da tsohuwar cibiyar bayanai sun fara samun buƙatun haɗin kai na hanyar sadarwa, wanda ya haifar da hanyar sadarwa ta farko ta DCI, wato, Data Center Inter-connect, wanda ya haɗa da fasaha a matakin cibiyar sadarwa ta jiki da matakin hanyar sadarwa mai ma'ana.

 Cibiyar sadarwa ta DCI ta farko ta haɗe kai tsaye ta Intanet.Daga baya, dangane da tsaro, an yi amfani da ɓoyewa, an yi la'akari da ingancin sabis, an yi amfani da layin da aka keɓe, kuma an haɗa bandwidth kai tsaye ta hanyar fiber na gani.

Ci gaban cibiyar sadarwa ta DCI

Ci gaban cibiyoyin sadarwa na DCI daga haɗin Intanet, zuwa layukan sadaukar da M da yawa, zuwa haɗin haɗin multi-10T WDM na yanzu ba lokaci mai tsawo ba ne, da gaske, amsa ce ga ci gaban Intanet.Da farko, masu amfani suna amfani da ramin VPN na jama'a don watsa ayyukansu kai tsaye ta hanyar sadarwar jama'a.Wannan hanyar tana shafar wurare daban-daban na cibiyar sadarwar jama'a (cutar bandwidth na cibiyar sadarwa na duniya, ƙwanƙwasa na ƙasa, layin layi, saitin hanyar haɗin gwiwa, Tacewar zaɓi, da sauransu) Tasirin farashi da farashi, ya dace da ƙananan zirga-zirga, ƙarancin buƙatun ingancin bandwidth, ba -ainihin lokaci, da ƙananan buƙatun tsaro.Daga baya, kasuwancin da ke cikin cibiyar bayanai ya jawo hankali sosai, kuma kasuwancin ya fara karuwa a hankali, kuma adadin sabobin ya karu a layi..Bayan da aka ƙaddamar da ayyuka masu yawa, waɗannan ayyukan da aka watsa ta hanyar sadarwar suna da tasiri mai tasiri a kan kamfanoni da masana'antu, don haka buƙatun sadarwar kuma suna karuwa sosai, da farko suna nunawa a cikin bandwidth da kwanciyar hankali, don haka masu amfani da bayanan sun fara farawa. zuwa Layin da aka keɓe na ma'aikacin da'ira, MSTP keɓaɓɓun layukan da aka yi a kan hanyar sadarwar SDH sun fara siyarwa da kyau saboda tsayin daka, babban fa'ida, da babban matakin yawan ma'aikata.

Daga baya, tare da ci gaba da ci gaban abubuwan fashewa na kasuwanci, bayanan da ke tsakanin cibiyoyin bayanai sun fara samun buƙatu don jinkiri da sakewa, musamman ga abokan cinikin kuɗi, waɗanda ke da buƙatu na musamman don jinkiri, don haka abubuwan da ake buƙata don layin sadaukarwa su ma sun kasance.

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

 Duk da haka, ƙarfin haɓakar Intanet yana da ban mamaki, kuma yanayin kasuwanci kamar watsa log ɗin da aiki tare da bayanai suna haɓaka.Dangane da farashi, lokacin isarwa, ingancin sabis, da dai sauransu, manyan kamfanoni (musamman kamfanonin Intanet masu manyan bayanai kamar Google da FB) sun fara gina hanyoyin sadarwa na DCI ta hanyar hayar filayen gani da ido ba tare da masu aiki ba.A farkon amfani da fiber na gani mara kyau, shine kuma hanyar gudanar da sigina guda ta hanyar fiber na gani guda ɗaya.Misali, nau'in fiber na gani guda biyu na iya amfani da tsarin 10G ZR don watsa nisan kilomita 80.isa.Duk da haka, rashin amfani da wannan hanya ita ce, a gefe guda, yawan amfani da fiber na gani yana karuwa a layi tare da bandwidth, kuma farashin yana ƙaruwa;Matsala mai tsayi da wahala), kuma a wannan lokacin, bandwidth na 10G na fiber guda ɗaya ba zai iya biyan bukatun ci gaban kasuwanci ba, don haka cibiyar sadarwar DCI ta fara zamanin WDM.

A zamanin WDM, hanyoyi guda biyu sun bayyana a cikin cibiyar sadarwa ta DCI, wato, rabe-raben tsayin raƙuman raƙuman ruwa na CWDM da DWDM mai tsayi mai tsayi.Bisa la'akari da farashi, wasu masu amfani da farko sun yi amfani da 10G CWDM na'urorin gani na gani don haɗin gwiwar DCI ta amfani da fasahar CWDM.Koyaya, wannan tsarin yana tallafawa har zuwa raƙuman ruwa na 16 na 10G, kuma EDFA ba zai iya haɓaka siginar a tsayin CWDM ba., kuma nisan gudun ba da sandar sa yana da iyaka sosai.Sabili da haka, yayin da buƙatun watsa bayanai masu girma ke ci gaba da haɓaka, masu amfani dole ne su fara amfani da tsarin DWDM tare da babban ƙarfi da aiki.