25G Ethernet txuj yog tus qauv tshwj xeeb pib los ntawm IEEE rau cov servers hauv huab chaw cov ntaub ntawv hauv xyoo 2016. Tus qauv no tau pib tawm ntau xyoo tom qab tshaj li 10G / 40G / 100G Ethernet txuj. Lub ntsiab kom zoo ntawm 25G yog kev siv SerDes cov thev naus laus zis, uas yog lub sijhawm siv lub sijhawm sib cais sib faib sib npaug (TDM) thiab kis-rau-kis (P2P) cov kev sib txuas lus technology, uas tuaj yeem ua kom siv tag nrho cov channel muaj peev xwm ntawm kis nruab nrab kom tsawg Qhov xav tau ntawm cov xov tooj sib kis thiab cov khoom siv pins tuaj yeem nce cov teeb liab sib kis thiab zoo heev txo tus nqi sib txuas lus.
Tam sim no, feem ntau ntawm cov khoom siv uas siv hauv cov ntsuas hluav taws xob tau khiav ntawm SerDes nrog lub moos ntawm kwv yees li 10Ghz, uas tuaj yeem muab cov kis ntawm 10Gbps ntawm cov khoom sib txawv. Xyoo tsis ntev los no, vim yog txoj kev loj hlob sai ntawm SerDes thev naus laus zis, SerDes nrog lub moos nqi ntawm 25Ghz tau dhau los ua ib qho ntawm cov kev xaiv kev lag luam, uas tau ua rau muaj kev sib txawv hauv cov nqi thiab cov txiaj ntsig ntawm 10G thiab 40G thiab 25G. Xws li:
10G VS 25G-Nws kuj tseem yog SerDes channel. Kev sib kis tau muab los ntawm 25G yog 2.5 zaug siab dua li cov muab los ntawm 10G. Thaum lub 10G network tau nce mus rau 25G, txij li 25G SFP28 optical module tuaj yeem siv lub LC jumper siv nyob rau hauv 10G network txuas xov, tsis tas yuav rov thas dua, yog li nws tuaj yeem txuag nqi.
40G VS 25G-40G siv 4 10Gbps Fiber Raws (SerDes nrog lub moos ntawm 12.5Ghz), thiab 25G siv ib qho SerDes channel, yog li 25G tuaj yeem muab qhov chaw nres nkoj ntau dua. Tib lub sijhawm, vim tias feem ntau 40G QSFP + optical module ntawm kev ua lag luam yuav tsum tau siv nrog MTP / MPO thaj kab hluav taws xob, 10G-40G yuav zam cov nqi cable ntau dhau.
