Xyoo tsis ntev los no, 25GBase-T (25G twisted-wire Ethernet) thev naus laus zis tau dhau los ua tshuab nrov hauv huab xam cov ntaub ntawv chaw vim nws lub chaw nres nkoj siab thiab qhov tsawg zog siv thiab kev siv network sib tw. 25GBase-T muab 25Gbps tshaj ib cov xaib, txhawb ntau dua cov kab hluav taws xob Ethernet hloov dua tshiab, thiab tsim nyog rau cov chaw zov me nyuam cov ntaub ntawv thiab chav pw. Kab lus no yuav muab cov lus qhia ntxaws ntxaws rau 25Gbase-T.
25G Base-T txuj thiab thev naus laus zis
Tsim los ntawm IEEE xyoo 2016, 25GBase-T tus qauv txhawb nqa 25Gbps cov ntaub ntawv kis tau tus mob hla cov xov txuas ua ke. 25GBase-T thev naus laus zis ua raws li 10gBase-T thev naus laus zis thiab tau tshaj 10Gbase-T. Tom qab kev tsim kho tas mus li, nws tuaj yeem sib haum nrog 40Gbase-T. Qhov ntsuas qhov ntsuas sib piv ntawm 10G / 25G / 40gbase-T thev naus laus zis yog muaj nyob hauv qab cov lus hauv qab no. Los ntawm kev sib piv, nws pom tau tias qhov nyuaj ntawm 25GBase-T technology zoo ib yam li 10Gbase-T thev naus laus zis. Lub sijhawm no, 25Gbase-T ua raws li 40Gbase-T thev naus laus zis tau tsim ua ntej, uas yuav txo tau qhov nyuaj ntawm 25Gbase-T cov khoom siv thiab ua kom lub sijhawm luv luv rau kev ua lag luam. Ntxiv nrog rau kev siv SerDes, 25GBase-T tseem siv cov gigabit kev sib txuas ntawm cov khoom sib txuas interface thiab SFP28 raws tu qauv.
Dab tsi yog qhov zoo ntawm 25GBase-T?
Vim li cas 25GBase-T thiaj li nrov nyob rau hauv xws li lub sijhawm luv luv? Muaj ntau feem ntau cov laj thawj hauv qab no:
1. Kev tsim tawm zoo / tawm tswv yim thiab cov qauv muaj peev xwm
25GBase-T nthuav dav bandwidth peev txheej kev lag luam thiab txuag kom tau raws li qhov xav tau ntawm huab chaw zov me nyuam cov ntaub ntawv thiab chaw tsim khoom txuas ntxiv rau tom ntej thiab chaw khaws khoom. 25GBase-T tuaj yeem paub txog 25Gbps kev xa xov los ntawm kev siv ib cov channel nkaus xwb. Piv nrog 10Gbase-T, nws txhim kho network bandwidth kev ua tau zoo los ntawm 2.5 zaug. Nyob rau tib lub sijhawm, 25GBase-T tuaj yeem muab plaub npaug ntawm qhov chaw nres nkoj hloov pauv rau txhua qhov nti, uas muaj qhov chaw nres nkoj ntau dua thiab ua tau zoo dua ntxiv piv nrog 40GBase-T.
2. Kev siv ntawm kev sib tham tsis siv neeg thiab kev sib raug zoo siab
Cov hloov uas ua raws li 25GBase-T tus qauv muaj cov chaw nres nkoj uas paub txog qhov sib kis tau thiab tsim cov kev sib txuas ntawm tib tus nqi, yooj yim rau kev txhim kho hauv network thiab txo tus nqi sib txuas los ntawm kev lag luam-tus qauv sib cuam tshuam. Tam sim no, hom kev sib txuam tsis xws luag muaj xws li 10Gbase-T, 40Gbase-T, 50Gbase-T thiab 100gbase-T. 25GBase-T rov qab sib haum nrog 10gbase-T, thiab mus rau pem hauv ntej tshaj (piv txwv li 100G Ethernet) tuaj yeem muab los ntawm kev sib tham tsis siv neeg, uas tsis tshua ntseeg txhim kho kev sib txuas thiab txuag nqi.
3. Sab saum toj yooj yim
Los ntawm cov saum toj no, 25Gbase-T ua ke nrog Cat8 network jumper tuaj yeem ua tiav 30 metres ntawm cov ntaub ntawv xa mus. Piv nrog 25G DAC kev kub ceev cable, 25GBase-T muaj qhov sib kis tau ntev, yog li 25GBase-T tuaj yeem txhawb nqa cov hlua hluav taws xob ntau, xws li kev sib txuas ntawm cov txee thiab txee lossis nruab nrab ntawm EoR hloov thiab cov neeg rau zaub mov, ntxiv rau MOR hlau. Vim li no, 25GBase-T tau pom los ntawm cov huab loj cov ntaub ntawv chaw nyob yog qhov kev daws teeb meem zoo rau kev tswj cov keyboards hauv ntau pua lub txee.
Nco tseg: Qhov kev sib kis deb ntawm 25G DAC txoj kab hluav taws xob loj yog 5 ~ 7 meters, uas yog siv los txuas qhov hloov thiab server (hauv tib lub txee) hauv ToR topology.
Daim ntawv thov ntawm 25GBase -t
Raws li tau hais los saum toj no, daim ntawv thov ntawm 25GBase-T zoo ib yam li 40GBase-T. Qhov loj tshaj ntawm 25GBase-T yog tias nws tuaj yeem siv Cat8 network jumper kom paub cov kev sib kis nrog kev deb mus txog 30m, sau qhov kis ntawm luv luv kis, tshwj xeeb tshaj yog haum rau MoR thiab EoR cabling. Yog li no, 25Gbase-T tau siv dav hauv kev sib txuas ntawm kev hloov mus rau server nyob hauv cov ntaub ntawv huab. Yog xav paub ntau ntxiv txog 25GBase-T thiab 40Gbase-T daim ntawv thov, mus saib Cat8 Network Jumper rau 25 / 40GBase-T. Nws hloov tawm tias 25GBase-T haum rau cov ntaub ntawv chaw nrog ntau lub network architectures, xws li FatTree architecture, ridge nplooj architecture, thiab cov tsoos ua peb theem.
Xaus
Niaj hnub no, 25GBase-T yog touted ntau hauv kev lag luam rau nws txoj kev ua haujlwm zoo bandwidth thiab siab scalability thiab tshaj. 25GBase-T feem ntau siv los hloov kho los ntawm 10G rau 100G lossis siab dua vim nws muab txoj hauv kev tsim txoj hauv kev rau cov tes hauj lwm kom nce mus rau 100G lossis siab dua vim nws cov cuab yeej zoo (tsis muaj rewiring). Tib lub sijhawm, 25GBase-T haum rau MoR thiab EoR cabling architectures, uas ua rau muaj kev txuag nyiaj tseem ceeb hauv cov nqi cabling thiab kev tswj hwm. Tag nrho txhua qhov, 25GBase-T yog qhov kev daws teeb meem zoo tshaj plaws rau cov ntaub ntawv huab thiab cov chaw pabcuam.
