Nrog rau kev tshaj tawm txog VR / AR, cov chaw hauv cov xov xwm, cov khoom siv xov tooj ntawm tes, thiab CDNs, yuav muaj ntau dua thiab xav tau kev ua lag luam bandwidth yav tom ntej. Tibneeg’s thov rau network bandwidth yog tam sim no nce geometrically, thiab nrog nws los ntawm qhov loj ntxiv nyob rau hauv high-bandwidth peev Ethernet ports xav tau los ntawm ultra-loj-teev cov ntaub ntawv chaw thiab huab muag, xws li 100GbE, 200GbE, 400GbE, thiab txawm yav tom ntej 800GbE. Cov high-bandwidth thiab peev xwm Ethernet cov chaw nres nkoj pab ua tau raws li cov ntaub ntawv nce tsheb thauj mus los sab hnub tuaj-sab hnub poob hauv cov ntaub ntawv chaw. Lub sijhawm no, kev hloov network thiab lwm cov khoom siv network (xws li servers lossis media converters) xav tau rau kev xa cov ntaub ntawv. , Cov viav vias tuaj yeem sib txuas tau sib txuas hauv network tau dhau los ua qhov tseem ceeb. SFP, SFP +, SFP28, QSFP + thiab QSFP28 yog cov sib txawv ntawm cov khoom siv kho qhov muag, thiab thaum ntsib cov qauv sib txawv no, xws li SFP vs SFP +, SFP28 vs SFP { {16}}, QSFP vs QSFP28, dab tsi yog qhov txawv ntawm lawv? Koj feem ntau yuav hnov cov lus nug: QSFP28 puas sib haum nrog QSFP +? Kuv puas tuaj yeem siv SFP28 transceiver rau ntawm SFP + chaw nres nkoj? Hauv tsab xov xwm no, peb yuav qhia txog cov qauv sib txawv no thiab qhia cov lus nug no.
SFP (daim foos me-pluggable)
SFP (cov ntawv me-qhov ua tau pluggable) yog cov kho dua tshiab rau GBIC (Gigabit interface converter). Nws cov ntawv tsuas yog li 1/2 ntawm GBIC module, uas zoo heev nce qhov chaw nres nkoj ntom ntawm cov khoom siv network. Cov ntaub ntawv tus nqi ntawm SFP nyob ntawm 100mbps txog 4gbit / s.
SFP + (daim ntawv me me-qhov ua tau pluggable ntxiv) yog kev txhim kho ntawm SFP. Nws txhawb 8 Gbit / s Fiber Channel, 10 Gigabit Ethernet thiab kho qhov muag xa hluav taws xob network txheem OTU2. SFP + tseem qhia txog kev sib txuas ncaj qha mus txuas ob lub SFP + cov chaw nres nkoj yam tsis tas yuav muaj cov khoom siv sib txuas ntxiv, suav nrog DAC (kev sib txuas ncaj qha cable) thiab AOC (nquag kho qhov muag cable), uas yog ncua luv nruab nrab ntawm ob sib txuas hauv network txuas. Cov tshuaj zoo heev rau kev sib txuas.
Qhov sib txawv tseem ceeb ntawm SFP thiab SFP +:
1. SFP thiab SFP + muaj qhov luaj li cas tib yam;
2. Qib siab tshaj ntawm SFP tuaj yeem ncav cuag 4G, thiab tus nqi ntawm SFP + yog 10G;
3. SFP raws cai txheej txheem: IEEE802.3, SFF-8472;
4. SFP + pab txhawb kev kuaj mob digital.
SFP28 (daim ntawv me-qhov ua tau pluggable 28)
SFP28 (daim ntawv me-qhov ua tau pluggable 28) yog kev txhim kho ntawm SFP +. SFP28 muaj daim foos ib yam li SFP +, tab sis txhawb 25Gb / s ntawm ib qho channel. SFP28 muab cov qauv kev tsim kho tshiab hauv network: 10G-25G-40G-100G, uas yog cov kev txuag hluav taws xob kom ua tau raws li cov kev xav tau ntawm cov neeg siv cov ntaub ntawv tshiab nyob hauv ib cheeb tsam. Lub khw lag luam tam sim no pib hloov pauv ntawm 10Gb / s Hloov mus rau 25Gb / s kev daws teeb meem.
QSFP + (plaub daim ntawv me me-muab tau pluggable)
QSFP + yog kev hloov ntawm QSFP (plaub daim ntawv me me-qhov zoo tshaj yuav pluggable). QSFP tuaj yeem nqa 4 txoj kev raws tib lub sijhawm, thiab txhua channel tau tuav cov ntaub ntawv ntawm 1Gbit / s, yog li lub npe Quad SFP. Tsis zoo li QSFP, QSFP + txhawb 4 x 10 Gbit / s channels. Cov 4 raws tuaj yeem mus ua ke rau hauv 40 Gigabit Ethernet txuas. QSFP + transceivers tuaj yeem hloov tau 4 tus qauv SFP + transceivers, uas muaj qhov chaw nres nkoj ntau dua thiab tag nrho cov nqi hluav taws xob txuag ntau dua li SFP + khoom lag luam. QSFP28QSFP28 (plaub fab me me-qhov zoo tshaj pluggable 28) yog haum rau 100G daim ntawv thov. Nws muab 4 txoj kev kub ceev sib txawv ntawm cov teeb liab sib txawv nrog cov ntaub ntawv tus nqi ntawm 25 Gbps txog rau 40 Gbps, thiab thaum kawg ua tau raws li qhov xav tau ntawm 100 Gbps Ethernet (4×25 Gbps) thiab 100 Gbps unlimited bandwidth txhim kho cov ntaub ntawv tus nqi (EDR). Thov nco ntsoov tias QSFP28 tuaj yeem ua tiav 4x25G thiab 2x50G forked sib txuas, lossis 1x100G sib txuas, nyob ntawm seb hom transceiver siv
SFP vs SFP +:
Cov loj ib yam, txawv ceev thiab sib xyaw SFP thiab SFP + transceivers yuav luag zoo tib yam hauv qhov loj me thiab tsos. Qhov no tso cai rau cov tuam txhab tsim khoom siv rov qab siv SFP cov kev siv lub cev uas tsim muaj rau kev hloov network nrog SFP + cov chaw nres nkoj. Raws li rau qhov sib txawv, qhov taw tes pom tseeb yog tias lawv txhawb nqa kev sib kis sib txawv, SFP li 4 Gbit / s, thaum SFP + yog 10Gbit / s. Ib qho ntxiv, lawv tau raws li qhov sib txawv. SFP ua raws li SFF-8472 raws tu qauv, thiab SFP + ua tau raws li SFF-8431 thiab SFF-8432.
Hais txog SFP thiab SFP + sib raug zoo, SFP + cov chaw nres nkoj feem ntau lees txais SFP optics, tab sis tus nqi ceev yog 1 Gbit / s. Lub SFP + transceiver tsis tuaj yeem raug tso rau hauv SFP chaw nres nkoj, txwv tsis pub cov khoom lag luam lossis chaw nres nkoj yuav puas.
SFP28 vs SFP +:
SFP28 yog kev kho tshiab ntawm SFP +. SFP28 tau hloov kho dua los daws 25 Gbit / s ib txoj kab. Lawv siv tib daim ntawv pov thawj, thiab cov pinouts ntawm SFP28 thiab SFP + cov khoom sib txuas tau ua ke thiab sib haum. Yog li SFP28 yuav ua haujlwm nrog SFP + kev kho qhov muag, tab sis tus ceev yuav raug txo 10 Gbit / s. Yog tias SFP28 chaw nres nkoj ntawm SFP + module tuaj yeem tsim tau rau 10G kev xa, SFP + module tuaj yeem siv tau zoo nrog SFP28 chaw nres nkoj ntawm lub network hloov, txwv tsis pub SFP + module tsis tuaj yeem ua haujlwm. Hais txog cov tooj liab tooj liab, piv nrog SFP + version, SFP28 tooj liab tooj liab muaj ntau dua bandwidth thiab poob qis dua.
SFP28 vs QSFP28:
Ua haujlwm raws li cov ntsiab cai sib txawv Txawm hais tias lawv cov npe muaj tus lej lej GG; 28" ;, SFP28 thiab QSFP28 transceivers sib txawv siv cov ntau thiab tsawg thiab cov qauv ua haujlwm.
SFP28 tsuas txhawb ib 25Gbit / s channel, thaum QSFP28 txhawb 4 ywj siab 25Gbit / s channel. Ob qho tib si tuaj yeem siv rau hauv 100G tes hauj lwm, tab sis SFP28 yog cov xaim hluav taws xob tau thov rau SFP28 ua daim QSFP28. Hauv qab no qhia cov kev txuas ncaj qha los ntawm 100G QSFP28 txog 4x SFP28 DAC.
QSFP + vs QSFP28:
Cov nrawm sib txawv nyias muaj nyias hom phiaj. Lub QSFP + thiab QSFP28 transceivers sib sau ua ke 4 kis thiab 4 tau txais cov kab uas muaj qhov loj me. Tsis tas li ntawd, QSFP + thiab QSFP28 cov khoom lag luam ob leeg suav nrog transceiver modules thiab DAC / AOC cables, tab sis cov nrawm sib txawv. QSFP + module txhawb 1x40gbit / s, QSFP + DAC / AOC cable txhawb 4x10Gbit / s. QSFP28 module tuaj yeem xa 100 Gbit / s cov ntaub ntawv, thiab QSFP28 DAC / AOC cable tuaj yeem khiav ntawm 4x 25 Gbit / s lossis 2x 50 Gbit / s. Thov nco ntsoov tias feem ntau QSFP28 modules tsis tuaj yeem tawg mus rau 10G txuas. Tab sis kev nkag mus rau QSFP + module rau hauv QSFP28 chaw nres nkoj yog lwm qhov xwm txheej, yog tias tus tes hloov qhov txhawb nqa (yuav ua li cas siv 4x 10G hom ntawm QSFP28 100G chaw nres nkoj, thov mus saib QSFP28 100G chaw nres nkoj kom ua si 40G, 25G thiab 10G). Hauv qhov no, QSFP28 tuaj yeem tsoo 4x10G zoo li QSFP + transceiver module.
Qhov sib txawv ntawm SFP thiab SFP +, SFP28 thiab SFP +, QSFP + thiab QSFP28 ntawm cov sib txawv ntawm cov hloov pauv tau piav qhia meej hauv cov lus no. Txawm hais tias qee tus ntawm lawv tus qauv ib yam, lawv raug tsim los rau cov nqi sib txawv ntawm cov ntaub ntawv. Nws tuaj yeem pom los ntawm kev sib piv hais tias lub zog tseem ceeb rau kev tsim kho ntawm cov khoom siv kho qhov muag yog qhov yuav tsum tau siv daim ntawv me dua-qhov me me kom tau txais cov kab mob siab dua. Piv txwv, hauv tib qho-qauv, QSFP28 muab ntau dua bandwidth dua QSFP +.