I. Performance Gap: Ntau tshaj li "100 Ntxiv Meters"
Lub ntsiab kom zoo dua ntawm OM4 nyob rau hauv nws siab dua Effective Modal Bandwidth (EMB). OM4 muaj ib qho EMB ntawm 4700 MHz·km, piv rau OM3's 2000 MHz·km-ntau dua ob npaug.
| Transmission Standard | OM3 Max nrug | OM4 Max nrug | Qhov zoo |
|---|---|---|---|
| 10G Ethernet | 300 m | 550 m | +250 m |
| 40G / 100G Ethernet | 100 m | 150 m | +50 m |
| 400G Ethernet (SR8) | ~30 m | ~50 m | +20 m |
Hauv 10G tes hauj lwm, qhov no ntxiv 250 meters yuav zoo li tsis tseem ceeb. Txawm li cas los xij, ntawm 40G / 100G thiab nrawm dua, qhov 50-meter npoo no feem ntau txiav txim siab seb puas muaj kev sib txuas ntawm racks lossis kab tuaj yeem ua tiav.
Cov txheej txheem kev lag luam feem ntau pom zoo kom siv tau qhov kev ncua deb ntawm 100 meters rau OM4 thiab 70 meters rau OM3 luv luv -ntau qhov sib txuas hauv cov chaw khaws ntaub ntawv. Yog tias koj tus txha nraub qaum hloov nyob deb li ntawm 200 meters, ces OM4 yog qhov kev xaiv zoo tshaj plaws rau kev sib txuas ntawm qaum.
II. Tus nqi txiav txim siab: Puas yog qhov hwm xa rov qab mus sij hawm ntev?
OM4 fiber ntau feem ntau raug nqi 20% mus rau 50% ntau dua OM3. Txawm hais tias tus nqi them no raug tsim nyog yog nyob ntawm nws lub peev xwm los tsim kom tau nyiaj ntev -.
OM4 tus nqi zoo tshaj plaws tshwm sim hauv peb qhov chaw:
- Tsawg cov khoom xyaw nquag.OM4 muaj kev sib kis ntev dua, txo qhov kev xav tau ntawm cov khoom siv kho qhov muag lossis cov khoom siv rov ua dua thiab yog li txuag ntawm cov khoom siv thiab cov nqi tu. Lub peev xwm ua tiav qhov kev sib kis ntev dua yam tsis muaj cov cuab yeej siv ntxiv kuj txhais tau tias kev siv hluav taws xob qis dua.
- Tsawg dua tus nqi retrofit.Tus nqi ntawm kev hloov cov qauv cabling (nrog rau kev ua haujlwm, kev poob qis, thiab cov nqi tswj qhov project) feem ntau yog 3 mus rau 5 npaug ntawm tus nqi ntawm cov khoom siv fiber ntau qub. Xaiv OM4 fiber ntau zam qhov kev xav tau ntawm kev xa rov qab thaum lub sijhawm hloov kho yav tom ntej, txo qis cov nqi rov qab. Ib qho kev teeb tsa ib leeg tuaj yeem txhawb nqa ntau yam kev hloov kho tshiab rau yav tom ntej, tshem tawm cov nqi siab ntawm kev rov ua dua tshiab.
- Extended infrastructure lifecycle.Xaiv cov fiber ntau zoo tuaj yeem kis tau tus nqi thiab txuas nws lub neej mus rau 10 mus rau 15 xyoo; thaum xaiv qhov tsis ncaj ncees lawm fiber yuav tsuas kav mus txog rau lub tom ntej no mob hloov. OM4 fiber ntau tau sib xws nrog 40G / 100G tes hauj lwm, zam kev ua tsis tiav ntxov vim muaj kev txwv bandwidth.
Thaum OM4 muaj tus nqi siab dua, nws lub sijhawm ntev - kev txuag nqi ua rau nws muaj peev xwm zoo dua.
III. Yuav Txiav Txim Li Cas: Ib Qhov Kev Txiav Txim Siab Pom Zoo
Txawm hais tias OM4 tus nqi them yuav tsim nyog yog nyob ntawm koj qhov kev xav tau tshwj xeeb:
| Sib piv Dimension | Xaiv OM3 | Xaiv OM4 |
|---|---|---|
| Thawj Tsav Tsheb | Cov peev nyiaj- txwv tsis pub, ua tau raws li qhov xav tau tam sim no | Yav tom ntej - taw qhia, cia lub taub hau rau kev kub ceev |
| 40G / 100G Txuas nrug | Tsawg dua los yog sib npaug li 100 m | > 100 m |
| 10G Link nrug | Tsawg dua los yog sib npaug li 300 m | >300 m, mus txog 550 m |
| Txoj kev ceev ceev | Feem ntau 10G, tsis nyob ze -lub sij hawm 40G/100G txoj kev npaj | Tam sim no lossis 1-3 xyoo txoj kev npaj rau 40G / 100G |
| Network Architecture | Ib txwm peb-tier | Kab laug sab-Neeg architecture |
| Tej yam xwm txheej | Enterprise offices, campus buildings | Cov chaw loj cov ntaub ntawv, AI / HPC pawg |
Koj qhov kev sib txuas nrug tsawg dua lossis sib npaug li 300 meters, koj cov peev nyiaj nruj, thiab koj tsis npaj yuav hloov mus rau 40G / 100G. OM3 tsis tshua kim thiab haum rau luv luv - kis tau tus mob, tab sis thov nco ntsoov tias kev hloov kho tshiab yav tom ntej yuav raug txwv.
Yog tias koj qhov kev sib txuas nyob deb ntawm 300 thiab 550 meters, lossis yog tias koj xav tau kev txhawb nqa 40G / 100G siab- kis tau tus mob ceev, ces OM4 fiber ntau yog lub nraub qaum rau siab-cov ntaub ntawv ceev ceev thiab kev lag luam siab- cov kev sib txuas ceev, muab cov txiaj ntsig zoo dua - nqes sij hawm - ua haujlwm tau zoo. Rau feem ntau cov chaw zov me nyuam siv tus qauv 100G-SR4, OM4 tseem yog tus nqi tshaj plaws - siv tau thiab siab - kev xaiv ua tau zoo.
IV. OM4 nyob rau hauv 400G Era: Ntev npaum li cas nws yuav kav?
Raws li kev tes hauj lwm hloov zuj zus mus rau 400G thiab 800G, qhov kev xaiv ntawm fiber ntau optical ua qhov tseem ceeb. OM4 fiber ntau tuaj yeem txhawb nqa kev sib kis ntawm kwv yees li 50 meters hauv 400G SR8 qhov xwm txheej, uas txaus los npog ib feem loj ntawm qhov kev sib kis ntawm qhov chaw nyob hauv cov ntaub ntawv.
Rau cov chaw zov me nyuam npaj 400G xa mus, OM4 tseem yog qhov kev xaiv siv tau yog tias qhov txuas txuas nyob hauv 50 meters. Txawm li cas los xij, rau qhov kev ncua deb tshaj 50 meters, lossis yog tias yav tom ntej hloov kho mus rau 800G tau cia siab, OM5 lossis txawm tias ib zaug - hom fiber ntau yuav tsum tau txiav txim siab.
Xaiv OM4 fiber ntau optics txhais tau hais tias yav tom ntej kev hloov kho ceev tsuas yog yuav tsum tau hloov cov khoom siv kho qhov muag (tsis muaj qhov yuav tsum tau rov ua dua). Xaiv OM3 fiber ntau optics, txawm li cas los xij, yuav xav tau hloov tag nrho cov khoom siv hauv 400G era.
V. Xaus
Qhov kev txiav txim siab OM4 vs OM3 thaum kawg los mus rau qhov sib npaug ntawm "zoo txaus rau hnub no" thiab "npaj rau tag kis."
- Yog tias koj qhov 40G / 100G txuas txuas nyob rau hauv 100 meters, koj cov peev nyiaj raug txwv, thiab koj tsis muaj qhov kev hloov kho ceev ceev rau 3-5 xyoo tom ntej, OM3 yog qhov kev xaiv ntau dua.
- Yog tias koj lub chaw khaws ntaub ntawv tab tom txav mus rau tus txha nraub qaum-nplooj architecture, txuas qhov deb tshaj 100 meters, lossis koj tab tom npaj rau 40G / 100G / 400G hloov dua tshiab, 20-50% tus nqi them rau OM4 yog txoj cai pov hwm rau yav tom ntej yooj thiab kev ntseeg tau - thiab feem ntau, nws tsim nyog rau kev nqis peev.
