Boost Koj Gigabit Network Performance: 1000BASE SFP

 

Yog vim li cas leej twg tseem mob siab txog Gigabit hauv 2025

 

Saib, 10G thiab 25G modules dominated datacenter tshiab tsim. Qhov ntawd yog qhov pom tseeb. Tab sis ntawm no yog qhov uas tsis muaj leej twg hauv kev lag luam xov xwm xav lees: gigabit SFPs tsis mus qhov twg.

Cov txheej txheem qub txeeg qub teg tseem nyob. Cov tsev kawm ntawv hauv tsev kawm ntawv, kev tswj hwm kev lag luam, kev soj ntsuam cov nraub qaum- cov cheeb tsam no tsis xav tau 10 gig. Lawv xav tauntseeg taugig. Thiab thaum koj khiav fiber ntau mus rau ib lub tsev 3km deb uas muaj rau lub koob yees duab IP thiab lub qhov rooj nkag, siv 4x cov nyiaj ntawm 10GBASE-LR optics yog qhov tsis zoo engineering xwb.

Kev lag luam ua haujlwm txawv sab nraud hyperscale. A 1000BASE-LX module nqi tej zaum yuav yog $15-25 los ntawm cov neeg muag khoom muaj npe thib peb. Qhov sib npaug 10G? Tseem $60-80 rau kev sib piv. Muab ntau hla 200 qhov chaw nres nkoj thiab tam sim ntawd qhov tseem ceeb.

 

Cov Variants Koj mam li ntsib tiag

 

1000BASE-SX: Tus neeg ua haujlwm tsis muaj leej twg xav txog

wavelength ntawm 850nm. Multimode fiber ntau xwb. Qhov siab tshaj plaws ncav cuag qhov siab ntawm 220 thiab 550 meters nyob ntawm koj qib fiber ntau -OM1 tau txais koj qhov kawg luv luv, OM3 / OM4 thawb mus rau sab sauv txwv.

Kuv tau pom cov duab kos duab uas ib tus neeg spec'd SX modules rau 400-meter khiav ntawm 62.5μm fiber ntau thiab xav paub vim li cas lawv tau txais CRC yuam kev. lej tsis ua haujlwm. Modal bandwidth tseem ceeb. A 160 MHz·km fiber ntau yuav tsis nqa gigabit huv si dhau los 220 meters txawm tias koj optics zoo npaum li cas.

SX nyob hauv cov tsev. Riser kev sib txuas. Data hall cross- txuas. Txhua qhov chaw koj nyob qis dua 300 metres ntawm cov khoom siv fiber ntau, nws yog qhov kev xaiv pom tseeb - pheej yig dua LX thiab lub zog xa hluav taws xob yuav tsis dhau luv luv - cov neeg txais tos.

 

 

1000BASE-LX: Qhov Chaw Uas Txaus Ntshai

1310nm ua. Ua haujlwm ntawm ob hom singlemode thiab multimode, txawm hais tias cov ntaub ntawv siv multimode muaj caveats kuv yuav tau mus.

Ntawm 9μm singlemode, koj yuav ntseeg tau ntaus 10km. Tus qauv hais tias 5km tab sis cov neeg muag khoom ib txwm qhia 10km lossis dhau mus vim tias qhov txuas nyiaj txiag ua haujlwm - xa ib ncig -9dBm, tau txais rhiab heev nyob ib puag ncig -20dBm, uas yog 11dB los ua si nrog cov kev sib txuas tsis zoo thiab fiber ntau attenuation ntawm kwv yees li 0.35dB/km. Ntau qhov margin.

Qhov xwm txheej multimode yog weirer. Kojua taukhiav LX tshaj 62.5μm lossis 50μm fiber ntau. Cov neeg ua nws. Tab sis qhov teeb meem ntawm lub laser tso tawm tsim ib yam dab tsi hu ua txawv hom ncua sij hawm- qhov pib lub teeb yuav siv ntau txoj hauv kev los ntawm cov tub ntxhais fiber ntau thiab tuaj txog ntawm lub receiver ntawm lub sijhawm sib txawv me ntsis. Saum toj no 300 meters, koj xav tau hom txias thaj cables kom kis tau lub community launch thoob plaws fiber ntau modal qauv. Cov neeg feem coob tsis paub qhov no. Cov neeg feem coob kuj tsis paub tias yog vim li cas lawv 400-meter multimode LX txuas muaj qhov cuam tshuam me ntsis.

 

Qhov Extended -Reach Variants

1000BASE-EX thawb mus rau 40km ntawm singlemode. 1000BASE-ZX hits 70-80km, qee zaum 100km nrog premium fiber. Cov no siv 1550nm wavelength qhov twg fiber ntau attenuation poob rau roughly 0.2dB / km.

Tsis yog IEEE-tus qauv. Lawv yog cov neeg muag khoom siv uas tau dhau los ua cov qauv ntawm qhov tseeb los ntawm kev ua lag luam saws -cisco cov lus qhia tshwj xeeb uas txhua tus neeg tau theej. Ua haujlwm zoo. Tsuas yog paub tias "ZX" los ntawm ib tus neeg muag khoom yuav muaj qhov sib txawv me ntsis ntawm qhov tsis zoo tshaj "ZX" los ntawm lwm tus. Xyuas cov ntaub ntawv. Ua raws koj cov peev nyiaj txuas.

 

 

BiDi: Thaum Koj Tsuas Muaj Ib Txoj Cai

 

Bidirectional SFPs tsim nyog lawv tus kheej ntu vim tias lawv daws qhov teeb meem tiag tiag thiab tsim kev tsis sib haum xeeb hauv kev ntsuas sib npaug.

Txheem SFPs siv ob fibers -ib kis, ib qho tau txais. BiDi modules siv wavelength - faib multiplexing los shove ob qho tib si cov lus qhia mus rau ib qho strand. Ib kawg kis ntawm 1310nm thiab tau txais ntawm 1550nm; lwm kawg ua qhov opposite. Internal WDM lim cais cov teeb liab.

Kojyuav tsumsiv cov khub sib tw. A 1310tx / 1550rx module tham nrog 1550tx / 1310rx module. Sib tov lawv thiab koj tsis muaj dab tsi - tib yam - wavelength signals ntawm tib lub fiber nyob rau hauv tib txoj kev tsuas yog tsim suab nrov.

Vim li cas thab? Fiber tsis txaus. Cov vaj tsev qub uas muaj kev txwv tsis pub suav. Aerial cog qhov twg ntxiv fiber ntau txhais tau tias tso cai rau npau suav phem. Municipal fiber lease nqi ib strand. Tus nqi 40-50% tshaj tus qauv SFPs them rau nws tus kheej thaum fiber ntau yog qhov txwv.

 

8B / 10B Yam

 

Txhua 1000BASE-X variant siv 8B/10B kab coding. Koj xa 8 khoom, tus encoder hloov lawv mus rau 10-ntsis cim, tus nqi xaim tiag yog 1.25 Gbaud. Cov nyiaj siv ua haujlwm muaj nyob rau qhov laj thawj zoo-DC tshuav nyiaj li cas, kev hloov pauv txaus rau lub moos rov qab, cov cim tshwj xeeb rau kev tswj xyuas txuas.

Kev cuam tshuam zoo: koj qhov txuas gigabit txav 1000 Mbps ntawm cov ntaub ntawv them nyiaj tab sis tsim 1250 Mbps ntawm cov teeb liab kho qhov muag. Yog tias ib tug neeg nug txog "gigabit fiber ntau bandwidth" thiab tsis meej pem txog cov lej, qhov no yog vim li cas.

1000BASE-T siv sib txawv encoding tag nrho-PAM-5 ntawm 125 Mbaud hla plaub khub ib txhij-tab sis qhov ntawd yog thaj chaw tooj liab thiab sab nraum peb qhov ntawm no.

 

DDM thiab Vim Li Cas Koj Yuav Tsum Saib Xyuas

 

Digital Diagnostic Monitoring. SFF-8472 specification. Xijpeem koj hu nws, qhov no yog qhov tshwj xeeb uas cais cov neeg ua haujlwm tshaj lij los ntawm kev kwv yees.

A DDM-SFP muaj peev xwm tshaj tawm tiag-lub sijhawm telemetry ntawm I²C interface:

Transmit optical zog (dBm)

Txais optical zog (dBm)

Module kub (degree)

Kev them nyiaj yug voltage (V)

Laser bias tam sim no (mA)

Koj qhov hloov pauv lossis NMS xaiv cov txiaj ntsig no. Koj teem caij pib. Thaum tau txais lub hwj chim poob 2dB hauv qab no, koj tau txais kev ceeb toomua ntejqhov txuas ua tsis tiav. Thaum qhov kub nce mus rau 70℃hauv qhov tsis zoo ntawm IDF txee dai khaub ncaws, koj paub txog nws.

Kuv tau teeb meem cov teeb meem fiber ntau qhov twg cov tsos mob tsuas yog "sib ntus qeeb" thiab DDM tau pom tias tau txais lub zog hloov pauv ntawm -18dBm thiab -22dBm- txoj cai ntawm ntug ntawm cov neeg txais kev xav. Nws tau dhau los ua qhov tsis zoo nyob rau hauv lub tsev kawm ntawv lub tsev txhab nyiaj. Yog tsis muaj DDM cov ntaub ntawv, qhov ntawd yuav yog hnub ntawm pob ntawv ntes thiab ntiv tes taw. Nrog nws, nees nkaum feeb los txheeb xyuas thiab ob teev rov ua dua.

Tsis yog -DDM modules tseem muaj thiab tseem xa khoom. Lawv pheej yig dua. Hauv kev sib sau ua ke lossis lub luag haujlwm tseem ceeb, cov nyiaj khaws cia nyiaj daus las tsis ua rau poob qhov pom. Nyob rau ntawm ntug, nyob rau hauv ib tug weatherproof enclosure ntawm ib tug ncej pab ib tug nkag point? Tej zaum qhov kev sib pauv ua rau muaj kev nkag siab.

 

 

Compatibility: Qhov Tseeb Tsis Txaus Siab

 

Ntawm no yog qhov chaw tau txais kev nom kev tswv.

Cov neeg muag khoom hloov pauv loj-Cisco, Juniper, Arista, HPE-encode lawv cov chaw nres nkoj SFP kom nyiam "qhov tseeb" hom optics. Ntxig qhov thib peb -party module thiab koj yuav tau txais cov lus ceeb toom, kev ua haujlwm tsis zoo, lossis kev tsis lees paub.

Cov modules lawv tus kheej yog standardized. Kev ua raws li MSA txhais tau hais tias qhov hluav taws xob sib cuam tshuam, pinout, thiab kev tswj hwm cov ntawv sau npe ua raws li cov lus qhia tshaj tawm. Raws li 1000BASE-LX SFP los ntawm ib lub chaw tsim khoomyuav tsumua haujlwm hauv txhua qhov chaw nres nkoj SFP raws cai.

"Yuav tsum" ua kom hnyav hnyav hauv kab lus ntawd.

Tus neeg muag khoom xauv-hauv yog tiag. Nws kuj yog feem ntau bypassable. Feem ntau cov platforms muaj cov lus txib kom yuam kev lees txais ntawm qhov tsis muaj kev txhawb nqa optics. Qee tus thib peb- cov neeg muag khoom tau txais kev pab cuam lawv EEPROMs nrog OEM-cov ntaub ntawv txheeb xyuas tau zoo. Lub lag luam grey muaj.

Kuv lub hom phiaj: siv OEM optics qhov chaw txhawb nqa cov ntawv cog lus thiab cem - hloov qhov teeb meem - cov txheej txheem tseem ceeb, cov neeg siv khoom - ntsib cov kev pabcuam, nyob txhua qhov chaw tus neeg muag khoom taw qhia rau koj thib peb -SFP thaum lub sijhawm hluav taws xob tsim kev pheej hmoo ua lag luam. Siv qhov zoo thib peb- tog optics nyob txhua qhov chaw. Lub tshuab yog tib yam. Tus nqi sib txawv yog kev lag luam.

 

Kev xaiv fiber ntau yeej tseem ceeb

 

Kuv pheej hais txog hom fiber ntau vim qhov tsis sib haum xeeb ua rau muaj teeb meem tiag tiag uas tib neeg liam rau SFPs.

 

Multimode qib:

 

Singlemode:

• OS1: sab hauv tsev, nruj dua khoov vojvoog kam rau ua
• OS2: qis attenuation, haum rau kev khiav ntev

 

Txuas koj SFP rau koj cov fiber ntau. SX modules mus nrog multimode. LX modules ua haujlwm ntawm ob qho tib si tab sis ua tau zoo tshaj plaws ntawm singlemode rau txhua yam dhau qhov luv luv. Tsis txhob muab ib qho multimode SFP rau singlemode fiber ntau - cov tub ntxhais txoj kab uas hla tsis sib haum ua rau tsis ua hauj lwm tam sim ntawd. Tsis txhob tso ib hom SFP rau ib qho multimode yam tsis nkag siab txog hom kev xav tau.

Connector huv si tseem ceeb tshaj li leej twg xav lees. Ib tus ntiv tes nkaus xwb ntawm lub ntsej muag ferrule tuaj yeem ntxiv 1-2dB ntawm qhov poob. Sib npaug hla plaub qhov txuas hauv qhov txuas txuas thiab koj tau noj koj cov paj. Ntxuav ua ntej txhua qhov ntxig. Siv cov ntaub so IPA uas tsim nyog lossis cov ntaub ntub dej qhuav qhuav. Tshawb xyuas nrog qhov ntsuas fiber ntau. Qhov no tsis yog xaiv tau.

 

Installation Notes los ntawm Field

 

SFPs yog kub -swappable tab sis qhov ntawd tsis txhais hais tias xws li.

Ntxig lub module ua ntej,cestxuas lub fiber. Lub latch mechanism yuav tsum koom nrog tag nrho -koj yuav tsum xav tias nias. Ib nrab qhov tso ua rau kev sib txuas sib txuas uas yuav ua rau koj vwm.

Tshem tawm fiber ntau ua ntej tshem cov module. Siv lub bail latch, tsis yog fiber. Rub lub module los ntawm fiber ntau patch cord stresses lub LC connector thiab nws thiaj li puas lub cable los yog lub module nyob rau hauv lub receptacle.

Plua plav kaus mom muaj nyob rau yog vim li cas. Ib qho qhib SFP chaw nres nkoj lossis ib qho khoom siv tsis muaj fiber ntau txuas nrog cov kab mob sib kis uas ua rau kev ua haujlwm tsis zoo. Kuv tau pom cov khoom lag luam- tshiab kev teeb tsa tsis tau vim tias ib tus neeg tau tso cov plua plav tawm thaum lub sijhawm tsim kho thiab cov phab ntsa ntub dej nkag mus rau txhua yam.

Kev xa thiab txais yuav tsis hloov pauv tau. Pom tseeb, tab sis hla fibers tshwm sim tas li. Yog tias koj qhov txuas yuav tsis tuaj, sib pauv cov khub fiber ntau ntawm ib kawg ua ntej xav tias kho vajtse tsis ua haujlwm.

 

Thaum Gigabit tsis txaus

 

Lub qab nthab tseem ceeb . 1000BASE SFP txuas max tawm ntawm 1 Gbps tag nrho -duplex- kwv yees li 125 MB / s qhov tseeb throughput accounting rau raws tu qauv overhead. Rau ib lub koob yees duab lossis chaw ua haujlwm, qhov ntawd txaus. Rau ib qho uplink aggregating 48 cov chaw nres nkoj nkag, nws yog qhov tsis muaj dab tsi.

Paub koj cov qauv tsheb. Tsim koj topology. Gigabit nkag nrog 10G aggregation yog qhov siv tau zoo. Gigabit txhua qhov chaw tsis yog, tshwj tsis yog "txhua qhov chaw" txhais tau tias qhov kawg nkaus xwb.

Txoj kev hloov kho tshiab yog qhov ncaj nraim ntawm kev siv tshuab-SFP+ siv tib daim ntawv zoo thiab feem ntau tib qhov chaw nres nkoj tawb. Hluav taws xob compatibility sib txawv ntawm lub platform. Tshawb xyuas koj qhov kev hloov pauv tshwj xeeb ua ntej xav tias koj tuaj yeem qhib 10G optics rau hauv cov chaw nres nkoj uas twb muaj lawm.

 

Kaw Xav

 

1000BASE SFP thev naus laus zis yog qhov paub tab, tsim qauv, thiab tho txawv hauv txoj hauv kev zoo tshaj plaws. Nws ua haujlwm. Cov hom kev ua tsis tau zoo yog qhov zoo - nkag siab. Cov txheej txheem daws teeb meem raug sau tseg. Ntau xyoo dhau los ntawm kev xa mus ua haujlwm txhais tau tias koj tsis zoo li yuav ntsib teeb meem tshiab tiag tiag.

Dab tsi mus ncig ua si tib neeg tsis yog thev naus laus zis - nws yog cov ntsiab lus. Fiber hom, ncav cuag txwv, connector huv si, neeg muag khoom compatibility quirks. Tau txais cov kev cai thiab gigabit optical khiav kev ntseeg siab rau xyoo. Tau lawv yuam kev thiab koj caum dab.

SFP MSA specification, IEEE 802.3z clause 38, SFF-8472 rau DDM-cov ntaub ntawv no muaj nyob thiab lawv tsim nyog nyeem yog tias koj tab tom ua ntau tshaj ib qho kev xa tawm. Kev nkag siabvim li cascov qauv hais tias lawv hais dab tsi tiv thaiv hom shortcuts uas tsim teeb meem tom qab.

Tsim kom raug. Muab ntaub ntawv kom huv si. Ntxuav koj cov fiber ntau. Qhov ntawd yog qhov feem ntau ntawm txoj haujlwm.