Yog koj muab piv ibSFP transceivernrog ibSFP + transceiver, qhov sib txawv tseem ceeb yog kab tus nqi: SFP yog tus qauv pluggable module rau 1 Gigabit Ethernet txuas, thiab SFP + yog nws qhov kev txhim kho txuas ntxiv tsim rau 10 Gigabit Ethernet. Ob leeg sib koom tib yam 20-pin daim ntawv qhia tau hais los ntawm tusSFF Pawg Neeg Saib Xyuas ntau- qhov kev pom zoo, uas yog vim li cas lawv zoo ib yam ntawm cov txee - thiab yog vim li cas cov lus nug sib haum ua rau muaj ntau yam yuam kev.
Cov lus qhia no suav nrog cov kev sib txawv ntawm 1G SFP thiab 10G SFP + modules, piav qhia thaum hla - insertion yeej ua haujlwm (thiab thaum nws tsis), thiab taug kev los ntawm cov kauj ruam pov thawj uas tiv thaiv qhov tsis sib haum xeeb ntawm optics los ntawm kev cuam tshuam kev xa mus.
SFP vs SFP + ntawm ib sab
| Feature | SFP (1G) | SFP + (10G) |
|---|---|---|
| Ethernet cov ntaub ntawv tus nqi | 1 Gbps (1000BASE-SX, LX, ZX, BX, T) | 10 Gbps (10GBASE-SR, LR, ER, ZR, T) |
| Hluav taws xob interface | SFP MSA - qis dua -Speed SerDes | SFP + MSA (SWB-8431) - 10 Gb/s siab -Speed SerDes |
| Kev ncav cuag (ib zaug - hom fiber ntau) | 10 km-120 km nyob ntawm qhov sib txawv | 10 km-80 km nyob ntawm qhov sib txawv |
| Kev ncav cuag (multimode fiber) | Mus txog 550 m (850 nm SX) | Txog li 300 m (850 nm SR) ntawm OM3; 400m ua 4 |
| Kev xaiv tooj liab | 1000BASE-T (RJ45, mus txog 100 m) | 10GBASE-T (RJ45, mus txog 30 m); SFP + DAC (txog ~ 7 m) |
| SFP-hauv-SFP+ chaw nres nkoj | Muaj peev xwm yog tus tswv firmware ua rau 1G kev sib tham ntawm qhov chaw nres nkoj | |
| SFP+-hauv-SFP chaw nres nkoj | Tsis txaus siab - 10G SerDes tshaj SFP chaw nres nkoj hluav taws xob spec | |
| Kev siv dav dav | Access switches, ceg uplinks, legacy interconnects | Aggregation uplinks, server NICs, storage, inter{0}}switch links |
SFP Module yog dab tsi?
SFP sawv rauDaim ntawv me-factor Pluggable. Tus thawj SFP multi-qhov kev pom zoo (MSA) txhais tau hais tias kub -swappable transceiver tawb tsim rau Gigabit- cov ntaub ntawv hauv chav kawm. Hauv Ethernet tes hauj lwm, SFP modules nqa 1000BASE tsheb - txawm tias dhautib - hom fiber ntau, multimode fiber ntau, los yog tooj liab RJ45.
Txawm tias 10G thiab 25G kev saws me nyuam loj hlob tuaj, 1G SFP modules tseem siv ntau heev. Lawv yog qhov kev xaiv zoo rau kev nkag mus rau-txheej txheem hloov chaw nres nkoj, qis-bandwidth uplinks ntawm cov plag tsev lossis cov tsev, thiab txhua qhov txuas qhov twg 1 Gbps throughput yog txaus thiab kev tswj tus nqi tseem ceeb. Cisco covGigabit Ethernet SFP cov ntaub ntawvsau ntau ntau ntawm 1G SFP cov kev hloov pauv tseem nyob hauv kev tsim khoom, uas lees paub tias daim ntawv tseem ceeb nyob deb ntawm kev siv tsis tau.
SFP + Module yog dab tsi?
SFP + sawv cev rauTxhim kho daim ntawv me me-factor Pluggable. SFP + MSA (qhia hauvSFF-8431 thiab SFF-8432) nce qhov hluav taws xob sib txuas ceev mus rau 10 Gb / s thaum khaws tib lub cev tawb qhov ntev li SFP. Qhov no txhais tau tias SFP + modules haum rau tib lub ntsiab lus, tab sis tus tswv tsev chaw nres nkoj yuav tsum siv qhov siab dua -SerDes ceev kom tsav lub teeb liab 10G.
Hauv kev xyaum, SFP + yog qhov kev xaiv ua ntej thaum twg lub network xav tau 10 Gigabit Ethernet txuas -10GBASE-SR rau luv luv multimode khiav, 10GBASE-LR rau tsev kawm ntawv lossis metro ib leeg- hom kev txuas, lossis10GBASE-ZR ntev-tau 80 km mus txog. Nws kuj tseem siv rau 10G Fiber Channel hauv SAN ib puag ncig thiab rau10G BiDi ib leeg -fiber linkshauv tsev kawm ntawv rings.
Qhov txawv ntawm SFP thiab SFP +
Kab tus nqi: 1G vs 10G
Lub ntsiab lus sib txawv yog bandwidth. SFP modules ua haujlwm ntawm 1.25 Gb / s kab tus nqi (nqa 1 Gbps Ethernet payload), thaum SFP + modules ua haujlwm ntawm 10.3125 Gb / s. Qhov ntawd tsis yog qhov sib txawv me me - nws yog qhov kev txiav txim tag nrho ntawm qhov loj, thiab nws cuam tshuam rau txhua txheej ntawm cov peev nyiaj txuas: laser modulation tus nqi, txais qhov rhiab heev, thiab qhov kev ua siab ntev ntawm txoj kev fiber ntau.
Yog tias koj qhov profile tam sim no nce mus txog qis dua 500 Mbps ntawm qhov muab txuas ntxiv, 1G SFP txuas yuav ua tiav tag nrho. Tab sis yog tias koj tab tom sib sau ua ke ntawm 48-chaw nres nkoj gigabit nkag mus, txuas virtualization hosts nrog ntau VMs tsim cov tsheb khiav sab hnub tuaj-sab hnub poob, lossis txuas ib qho iSCSI cia array, 10G SFP + uplink feem ntau yog qhov tsawg kawg nkaus kev xaiv.
SFP Chaw nres nkoj vs SFP + Chaw nres nkoj Compatibility
Qhov no yog qhov uas qhov yuam kev kim tshaj plaws tshwm sim. Vim tias ob hom qauv sib koom ua ke ntawm lub cev, cov engineers qee zaum xav tias lawv tuaj yeem hloov pauv tau dawb. Lawv tsis yog - thiab yog vim li cas yog hluav taws xob, tsis yog txhua yam.
SFP + chaw nres nkoj siv 10 Gb / s siab - ceev serial interface. Qee qhov hloov pauv platforms - Cisco Catalyst 9300, Arista 7050 series, Juniper EX4300, thiab lwm yam - tso cai rau lawv cov chaw nres nkoj SFP + pib - sib tham mus rau 1G thaum kuaj pom 1G SFP module. Qhov no yog firmware- theem nta, tsis yog lub cev muaj tseeb. Lwm lub platforms, tshwj xeeb tshaj yog laus dua lossis qis dua - qauv nqi, tuaj yeem tsis lees txais SFP module tag nrho lossis pov tawm xov xwm- hom kev ua yuam kev tsis sib haum.
Mus rau lwm qhov kev taw qhia yog qhov phem dua: ntxig 10G SFP + module rau hauv 1G SFP- tsuas yog chaw nres nkoj yuav tsis ua haujlwm. SFP qhov chaw nres nkoj hluav taws xob tsis tuaj yeem tsav lossis tau txais 10 Gb / s teeb liab. Lub module yuav haum lub cev, tab sis qhov txuas yuav tsis tuaj.
Txoj cai pov thawj yog yooj yim:ua ntej kev yuav khoom optics, xyuas cov cuab yeej cuab tam kho vajtse compatibility matrix - tsis yog qhov zoo li qhov. Cisco tshaj tawm rau -platformtransceiver compatibility matrices, thiab Juniper thiab Arista tuav cov npe zoo sib xws. Yog tias lub matrix tsis qhia meej txog 1G SFP kev txhawb nqa ntawm SFP + chaw nres nkoj rau koj cov qauv hloov pauv tshwj xeeb thiab firmware version, tsis txhob xav tias nws yuav ua haujlwm.
Fiber hom, Connector, thiab ncav cuag
Ob tsev neeg SFP thiab SFP + suav nrog ntau yam sib txawv rau ntau hom xov xwm thiab qhov deb. Xaiv tsev neeg transceiver txoj cai tsuas yog thawj kauj ruam - koj kuj yuav tsum tau phim cov optic rau cov nroj tsuag fiber ntau uas koj twb tau teeb tsa.
A 10GBASE-SR SFP + module yog tsim los rau 850 nm multimode fiber ntau thiab feem ntau ncav cuag 300 m ntawmOM3 fiber ntaulos yog 400 mOM4 fiber ntau. A 10GBASE-LR module siv 1310 nm ntawm ib qho - hom fiber ntau mus txog 10 km. Yog tias koj xav tau ncua 40 km lossis 80 km, koj tab tom saib ER lossis ZR sib txawv nrog cov peev nyiaj siv hluav taws xob sib xws. Tib lub logic siv rau 1G SFP: ib qho 1000BASE-SX module ntawm multimode ncav cuag li 550 m, thaum lub 1000BASE-ZX module ntawm ib qho - hom tuaj yeem ncav cuag 80 km.
Nyob rau hauv txhua rooj plaub, ob qhov kawg ntawm qhov txuas yuav tsum tau siv optics sib xws thiab sib txuamfiber ntau connectors- feem ntau LC duplex rau SFP thiab SFP+. Yog tias koj txuas rau ib qhovaj huam sib luag adapternyob rau hauv ib thaj chaw khib, paub meej tias cov adapter hom sib tw ua ntej xaj modules.
Copper SFP thiab SFP + Options
Tsis yog txhua qhov SFP lossis SFP + kev xa tawm cuam tshuam nrog fiber ntau. 1000BASE-T SFP module muab tooj liab RJ45 chaw nres nkoj rau 1G Ethernet tshaj Cat5e/Cat6 cabling mus txog 100 m. Ntawm 10G sab, 10GBASE-T SFP + modules muaj nyob tab sis feem ntau ncav cuag tsuas yog 30 m thiab kos lub zog ntau dua - ib qho kev txiav txim siab nyob rau hauv ntom hloov chassis. Rau qhov deb heev (hauv ib lub khib lossis nruab nrab ntawm cov racks uas nyob ib sab),SFP + ncaj qha - txuas tooj liab (DAC) cablesmuab tus nqi qis dua - nqi, qis dua -latency lwm txoj rau optical transceivers.
Koj puas tuaj yeem siv SFP Module hauv SFP + Chaw nres nkoj?
Feem ntau yog - tab sis tsuas yog nyob rau hauv cov xwm txheej tshwj xeeb. Nov yog qhov tseeb txiav txim seb qhov no puas ua haujlwm:
- Kev them nyiaj yug Platform:Hloov lossis router yuav tsum tau txhawb nqa 1G SFP kev ua haujlwm ntawm nws cov chaw nres nkoj SFP +. Qhov no yog ib qho - qauv, rau - firmware muaj peev xwm. Piv txwv li, Cisco cov ntaub ntawv 1G SFP kev txhawb nqa ntawm ntau lub Nexus thiab Catalyst SFP + cov chaw nres nkoj, tab sis tsis yog ntawm txhua daim npav lossis tag nrho cov software versions.
- Kev sib tham ceev:Qhov chaw nres nkoj yuav tsum tuaj yeem pib- sib tham lossis raug teeb tsa los ntawm 1G. Ntawm qee lub platform koj yuav tsum nkag mus ceev 1000 hauv kev teeb tsa interface.
- DOM thiab coding:Qee tus tswv xyuas lub module's EEPROM identifier byte. Yog tias tus qauv qhia tias yog SFP (tsis yog SFP +), tus tswv tsev nruj yuav tsis kam nws tshwj tsis yog 1G kev sib raug zoo hom qhib.
Cov tswv yim coj mus siv: yog tias koj tab tom tsiv lub network los ntawm 1G mus rau 10G nyob rau theem, ntxig 1G SFP modules uas twb muaj lawm rau hauv SFP + cov keyboards tshiab tuaj yeem ua haujlwm thaum lub sijhawm hloov pauv - tab sis txheeb xyuas rau -chaw nres nkoj txhawb nqa ua ntej xa mus.
Koj puas tuaj yeem siv SFP + Module hauv SFP Chaw nres nkoj?
Tsis yog. SFP + cov lus qhia hluav taws xob (SFF-8431) txhais tau tias 10 Gb/s siab-ceev interface uas SFP- tsuas yog chaw nres nkoj host tsis tuaj yeem tsav. Lub module yuav lub cev zaum hauv lub tawb, tab sis qhov txuas yuav tsis tsim. Qhov no tsis yog teeb meem kev teeb tsa lossis qhov sib txawv ntawm firmware - nws yog kev txwv kho vajtse ntawm SFP chaw nres nkoj SerDes circuitry.
Kev sib raug zoo ntawm kev sib raug zoo yog ib qho - kev taw qhia: qee qhov SFP + cov chaw nres nkoj tuaj yeem nqis mus rau 1G rau SFP modules, tab sis SFP cov chaw nres nkoj tsis tuaj yeem nce mus txog 10G rau SFP + modules.
Yuav Ua Li Cas Xaiv Ntawm SFP thiab SFP +
Xaiv qhov module txoj cai tsis yog ib qho kev txiav txim siab ib leeg kho qhov muag - nws yog ib feem ntawm kev sib txuas - theem tsim uas suav nrog kev muaj peev xwm ntawm tus tswv tsev, fiber ntau infrastructure, thiab cov kev xav tau ntawm kev khiav tsheb. Nov yog plaub qhov kev ua tau zoo -qhia kev txheeb xyuas cov kauj ruam uas peb siv thaum tshuaj xyuas cov transceiver haum rau kev xa tawm cov haujlwm:
Kauj ruam 1: Paub meej tias muaj peev xwm ntawm Chaw nres nkoj
Txheeb xyuas qhov hloov pauv, router, lossis NIC datasheet rau hom chaw nres nkoj tiag. Nrhiav cov lus zoo li "SFP + cov chaw nres nkoj txhawb nqa 1G / 10G" piv rau "SFP + chaw nres nkoj, 10G nkaus xwb." Yog tias koj tab tom ua haujlwm nrog cov cuab yeej siv lossis hloov kho dua tshiab, kuj txheeb xyuas qhov kev khiav haujlwm firmware version - laus firmware yuav tsis txhawb dual - tus nqi ua haujlwm txawm tias kho vajtse ua.
Kauj ruam 2: Txiav txim siab yuav tsum tau txuas ceev
Txuas lub transceiver rau koj qhov kev xav tau tiag tiag. Overprovisioning rau 10G ntawm qhov txuas uas yuav tsis pub tshaj 200 Mbps nkim nyiaj txiag. Kev ua haujlwm tsis zoo rau 1G ntawm tus neeg rau zaub mov uplink uas tsis tu ncua saturates ntawm 950 Mbps tsim ib lub fwj koj yuav tsum rov mus xyuas hauv lub hlis. Ntsuas los yog kwv yees siv qhov siab tshaj plaws ua ntej txiav txim siab.
Kauj Ruam 3: Txheeb xyuas Fiber Hom thiab ncav cuag
Txheeb xyuas qhov teeb tsafiber ntau cablehom (ib zaug -mode OS2, multimode OM3 / OM4), lub connector kawg-lub ntsej muag polish (UPC lossis APC), thiab qhov txuas txuas. Tom qab ntawd xaiv lub transceiver variant uas haum. Piv txwv li, yog tias koj muaj OM3 multimode qaum qaum ntawm ob lub tsev 200 m sib nrug, 10GBASE-SR SFP + module yog qhov haum. Yog tias qhov ncua sij hawm yog 8 km ntawm ib qho - hom, 10GBASE-LR yog qhov sib tw. Yog tias cov nyiaj siv kho qhov muag nruj ntawm qhov ntev, koj yuav xav tau ib qhokho qhov muag attenuatorntawm qhov kawg tau txais kom tsis txhob overloading lub ntes ntawm cov txuas luv luv, lossis koj yuav xav tau ntau dua -ZR optic rau kev ncav cuag.
Kauj Ruam 4: Qhov Tseem Ceeb hauv Kev Txhim Kho Qab Zib
Yog tias koj tab tom yuav cov hloov tshiab nrog SFP + cov chaw nres nkoj thiab koj cov tsheb khiav tam sim no tsuas yog xav tau 1G, nws tseem ua rau kev txiav txim siab yuav SFP + muaj peev xwm infrastructure. Koj tuaj yeem khiav 1G SFP modules tam sim no (yog tias tus tswv txhawb nqa nws) thiab hloov mus rau 10G SFP + modules tom qab - yam tsis tau hloov pauv. Qhov no yog ib txoj hauv kev zoo tshaj plaws nyob rau hauv tsev kawm ntawv network refreshes thiab yog ib qho ntawm cov laj thawj muaj zog tshaj plaws los xaiv SFP + muaj peev xwm kho vajtse txawm tias qhov kev xav tau bandwidth tam sim no yog me me.
Feem ntau yuam kev thaum xaiv SFP lossis SFP + Modules
Txiav txim siab compatibility los ntawm lub cev haum.Qhov feem ntau thiab raug nqi yuam kev. Lub module nyem rau hauv lub tawb, yog li tus engineer xav tias nws yuav ua haujlwm. Nws yuav tsis. Ib txwm paub meej los ntawm tus neeg muag khoom qhov kev sib raug zoo matrix, tsis yog lub tawb qhov ntev.
Tsis quav ntsej hom fiber ntau mismatch.Ntxig ib qho -mode optic (1310 nm lossis 1550 nm) rau hauv cov nroj tsuag multimode fiber ntau, los yog rov ua dua, yuav ua rau tsis muaj qhov txuas lossis qhov txuas tsis ruaj khov nrog tus nqi yuam kev siab. Qhov no tseem ceeb tshwj xeeb tshaj yog nyob rau hauv cov tsev uas muaj fiber ntau sib xyaw ua haujlwm - OM1 cov khoom qub txeeg qub teg nrog rau OS2 qaum, piv txwv li.
Piv txwv tias tag nrho 10G txuas xav tau fiber ntau.Rau intra- khib kev sib txuas hauv qab 5 m, ib qho SFP + DAC cable yog pheej yig dua, qis dua -latency, thiab yooj yim dua li ib khub ntawm optical transceivers ntxiv raufiber ntau thaj qaum. Tsis txhob ua haujlwm rau optics thaum tooj liab ncaj qha -txuas yog lub cuab yeej zoo dua rau txoj haujlwm.
Overlooking DOM kev them nyiaj yug.Digital Optical Monitoring (DOM) cia qhov hloov pauv qhia tiag-lub sijhawm Tx zog, Rx lub zog, qhov kub thiab txias, thiab kev tsis ncaj ncees tam sim no los ntawm transceiver. Qee qhov thib peb - tog SFP / SFP + modules lov tes taw lossis txwv DOM, uas tshem koj qhov kev pom mus rau hauv kev sib txuas kev noj qab haus huv. Yog tias koj tso siab rau kev saib xyuas, paub meej tias DOM tau txais kev txhawb nqa thiab ua haujlwm ntawm qhov tshwj xeeb module thiab platform ua ke.
SFP vs SFP + hauv Kev xa tawm tiag tiag
Chaw Ua Haujlwm Chaw Nkag Mus Hloov Uplink
Lub chaw haujlwm ceg nrog 20 tus neeg siv thiab 100 Mbps WAN Circuit Court tsis xav tau 10G sab hauv uplinks. Ib qho 1000BASE-LX SFP module ntawm ib qho - hom fiber ntau txuas cov ceg nkag mus rau lub router faib yog tus nqi- siv tau thiab txaus txaus. Kev hloov kho rau SFP + ntawm no yuav ntxiv tus nqi uas tsis muaj txiaj ntsig ua haujlwm.
Data Center Server Connectivity
Tus tswv tsev virtualization khiav 30 VMs nrog kev sib sau ua ke sab hauv tshaj 4 Gbps xav tau 10G SFP + NIC uplinks. Nyob rau hauv siab - qhov chaw ntom ntom nrogMTP / MPO kabnruab nrab ntawm nplooj thiab txha nraub qaum hloov, 10G SFP + yog lub hauv paus - thiab ntau lub koom haum twb tau tsiv mus rau 25G SFP28 rau cov neeg rau zaub mov-faus cov chaw nres nkoj.
Txhim kho Campus Backbone
Ib lub tsev kawm ntawv qib siab uas muaj 1G fiber ntau nraub qaum uas muaj kev ntxhov siab thaum lub sijhawm hais lus siab tshaj plaws yog cov ntaub ntawv kawm rau kev kho dua tshiab rau 10G SFP + ntawm ib leeg - hom fiber ntau cog. Yog tias cov pob txha hloov pauv muaj SFP + cov chaw nres nkoj, qhov kev hloov kho tshiab tsuas yog xav tau10GBASE-LR transceiver modules- tsis muaj fiber ntau re-kab, tsis hloov pauv.
Tshaj SFP +: Qhov twg 10G haum rau hauv daim duab loj dua?
SFP + tsis yog 10G daim ntawv nkaus xwb.XFP modulesyog tus qauv 10G ua ntej nrog lub cev loj dua hneev taw thiab siv zog ntau dua; lawv tseem pom muaj nyob rau hauv qee qhov DWDM thiab kev sib tham hauv xov tooj tab sis feem ntau tau hloov chaw los ntawm SFP + hauv kev lag luam Ethernet. Rau 40G, kev lag luam tsiv mus rauQSFP + modules; rau 100g,QSFP28 modules. Kev nce qib ntawm SFP mus rau SFP + mus rau SFP28 (25G) ua raws tib daim ntawv MSA, txhais tau tias SFP28 cov chaw nres nkoj ntawm cov hloov tshiab tuaj yeem txais tau ob qho tib si SFP + (10G) thiab SFP (1G) modules - tib lub sijhawm rov qab los ntawm - kev sib raug zoo logic siv tau.
Xaus
Qhov sib txawv ntawm SFP thiab SFP + yog qhov tseem ceeb ntawm kab tus nqi - 1G piv rau 10G - ua rau sab saum toj ntawm tib lub cev daim ntawv. Kev sib raug zoo ntawm kev sib raug zoo yog asymmetric: qee qhov SFP + chaw nres nkoj txhawb 1G SFP modules, tab sis tsis muaj SFP chaw nres nkoj txhawb 10G SFP + modules. Txhua qhov kev txiav txim siab yuav khoom yuav tsum pib nrog tus tswv cuab lub cuab yeej compatibility matrix, tom qab ntawd txav mus rau hom fiber ntau thiab ncav cuag, thiab thaum kawg xav txog txoj kev txhim kho.
Yog tias koj tab tom npaj ib qho kev yuav khoom transceiver, pib los ntawm rub cov npe sib raug rau koj tus qauv hloov pauv tshwj xeeb thiab firmware. Muab lub optic rau kojntsia cable, paub meej tias DOM kev txhawb nqa yog tias koj xav tau kev saib xyuas, thiab xaiv lub module uas haum rau koj qhov kev xav tau tiag tiag los ntawm - tsis yog lub suab nrawm dua ntawm daim ntawv.
Cov lus nug nquag
Puas yog SFP zoo ib yam li SFP +?
Tsis yog. Ob leeg yog pluggable transceiver daim ntawv foos uas sib koom tib lub cev tawb, tab sis SFP ua haujlwm ntawm 1 Gbps thiab SFP + ua haujlwm ntawm 10 Gbps. Cov khoom siv hluav taws xob sib txawv sib txawv - SFP + xav tau 10 Gb/s SerDes tau txhais hauvSWB-8431- uas yog vim li cas lawv thiaj tsis hloov pauv tau thoob ntiaj teb.
Kuv puas tuaj yeem siv 1G SFP module hauv 10G SFP + chaw nres nkoj?
Ntawm ntau lub platform, yog - yog tias tus tswv cuab yeej txhawb nqa 1G kev ua haujlwm ntawm SFP + chaw nres nkoj. Txheeb xyuas tus neeg muag khoom hloov pauv lub transceiver compatibility matrix rau koj tus qauv thiab firmware version. Tsis txhob cia siab rau lub cev haum ua pov thawj ntawm kev sib haum xeeb.
Kuv puas tuaj yeem siv 10G SFP + module hauv 1G SFP chaw nres nkoj?
Tsis yog. SFP chaw nres nkoj kho vajtse tsis tuaj yeem txhawb nqa 10 Gb / s hluav taws xob cuam tshuam. Lub module yuav lub cev ntxig tab sis qhov txuas yuav tsis tuaj.
Puas yog SFP + fiber ntau, lossis nws puas txhawb tooj liab?
SFP + txhawb nqa fiber ntau thiab tooj liab. Fiber ntau muaj xws li 10GBASE-SR (multimode), 10GBASE-LR thiab 10GBASE-ER (ib zaug-mode). Cov kev xaiv tooj liab suav nrog 10GBASE-T RJ45 modules (feem ntau txog 30 m) thiab SFP + ncaj qha - txuas tooj liab cables rau luv luv intra- khib kev sib txuas.
Kuv yuav xaiv qhov twg rau kev hloov kho yav tom ntej - SFP lossis SFP+?
Yog tias koj lub network txoj hauv kev muaj xws li ib txoj hauv kev mus rau qhov siab dua, yuav cov keyboards nrog SFP + (lossis SFP28) chaw nres nkoj. Koj tuaj yeem khiav 1G SFP modules tam sim no thiab pauv mus rau 10G SFP + tom qab yam tsis tau hloov cov txheej txheem. Yog tias koj ib puag ncig yuav nyob twj ywm ntawm 1G mus tas li thiab pob nyiaj siv yog qhov txwv tsis pub, SFP-tsuas yog cov cuab yeej siv tseem yog qhov kev xaiv siv tau.
Dab tsi yog qhov txawv ntawm SFP + thiab SFP28?
SFP28 yog cov kauj ruam tom ntej nce - nws siv tib daim ntawv tab sis txhawb 25 Gbps kab tus nqi. SFP28 cov chaw nres nkoj feem ntau lees txais SFP + (10G) thiab SFP (1G) modules nrog tib lub sijhawm rov qab los ntawm - cov cai sib raug: xyuas koj cov ntaub ntawv hauv tsev ua ntej xav tias nws ua haujlwm.
