2.5G SFP Compatibility Guide rau Hloov

 

Vim li cas 2.5G tshwm sim (Thiab yog vim li cas nws thiaj li nyuaj)

 

Ntawm no yog qhov hais txog 2.5G: nws yeej tsis tau tsim los ua lub ntsiab lus nrawm. IEEE 802.3bz tau tshwm sim hauv 2016 feem ntau los txhawb WiFi 6 cov ntsiab lus nkag thiab nyem ntau lub neej tawm ntawm Cat5e cabling infrastructure. Hom qauv tau shoehorned rau hauv hav zoov.

Feem ntau cov lag luam hloov cov neeg muag khoom tsis zoo siab txog kev ntxiv lwm qhov sib txawv ntawm lawv cov khoom lag luam. Kev txhawb nqa 2.5G txhais tau hais tias ntxiv PHY validation, firmware txhim kho, thiab - tseem ceeb- kev txiav txim siab txog qhov twg SFP cov chaw nres nkoj yuav lis qhov "weird" nruab nrab tus nqi.

Qhov tshwm sim? Ib thaj chaw tawg paj uas qee qhov 10G SFP + cov chaw nres nkoj zoo siab txais 2.5G modules thaum lwm tus tiaj tus - tawm tsis kam. Qhov twg qee qhov 1G SFP cov chaw nres nkoj tuaj yeem coaxed rau hauv 2.5G kev ua haujlwm los ntawm kev hloov kho firmware. Qhov twg tus neeg muag khoom A's hloov ua haujlwm flawlessly nrog tus neeg muag khoom B's optics tab sis cuam tshuam nrog tus neeg muag khoom C's supposedly "universal" modules.

 

Lub cev txheej: Dab tsi tiag tiag

 

SFP thiab SFP + sib koom tib yam 20-pin MSA daim ntawv foos. Lub cev sib hloov tau. Qhov no yog ib txhij pab tau thiab lub hauv paus ntawm kev tsis meej pem kawg.

Ib qho 2.5G SFP module yuav haum rau txhua qhov SFP lossis SFP + tawb. Txawm hais tias nws ua haujlwm tiag tiag yog nyob ntawm SerDes lub peev xwm ntawm qhov hloov pauv PHY thiab kev txawj ntse ntawm nws cov firmware.

 

SerDes Tus Nqi Txhawb

Lub serializer/deserializer ntawm qhov hloov chaw nres nkoj txiav txim siab seb kab nqi twg nws tuaj yeem ua tau. Ib qhov chaw nres nkoj tsim tshwj xeeb rau 1.25 Gbaud (1G Ethernet) tsis muaj lub moos rov ua haujlwm rau 2.5 lossis 3.125 Gbaud cov cim. Tsis muaj tus nqi ntawm firmware hloov tshiab kho qhov kev txwv kho vajtse.

Hloov pauv, feem ntau niaj hnub 10G SFP + chaw nres nkoj siv SerDes uas txhawb nqa ntau tus nqi: 1.25G, 2.5G, 3.125G, 10.3125G. Lub peev xwm muaj nyob. Cov lus nug yog seb tus neeg muag khoom puas tau xaiv los nthuav tawm nws.

 

Kev txiav txim siab hluav taws xob rau RJ45 Modules

2.5GBASE-T SFP modules tsim nyog hais tshwj xeeb vim tias lawv muaj zog- cov tsiaj tshaib plab. Ib qho 2.5G tooj liab SFP kos 2.5 mus rau 4 watts-qee zaum ntau dua thaum sib tham sib txuas. Muab piv rau kwv yees li 1W rau tus qauv 1000BASE-T SFP.

Qhov no tseem ceeb rau ob qho laj thawj.

Tus tswv tsev hloov chaw nres nkoj yuav tsum muab lub zog txaus los ntawm 3.3V rail. Cov keyboards qub tsim rau 1G SFPs yuav tsis muab tam sim no txaus. Lub module pib pib, sim tsim qhov txuas, thiab ua rau muaj kev tiv thaiv overcurrent. Link flaps tshwm sim.

Kev tswj cov cua sov ua qhov tseem ceeb hauv kev xa khoom hnyav. Stuffing 24 2.5G-T modules rau hauv 1U hloov ua rau kwv yees li 60-100W ntawm cov cua sov los ntawm cov transceivers ib leeg. Kuv twb pom modules throttle los yog ua tsis tau tejyam nyob rau hauv tsis zoo ventilated ib puag ncig uas tuav 1G optics tsis muaj teeb meem.

 

 

Hloov Cov Neeg Muag Khoom Compatibility: Qhov Kev Ntsuam Xyuas Ncaj Ncees

 

MikroTik

Qhov tseeb tshaj plaws 2.5G-tus phooj ywg platform rau pob nyiaj- nco ntsoov xa tawm. CRS305-1G-4S+IN thiab CRS309-1G-8S+IN khiav ntau tus nqi SFP+ chaw nres nkoj uas pib sib tham 1G, 2.5G, thiab 10G yam tsis muaj kev tsis txaus siab. RouterOS tsis siv qhov muag khoom xauv.

Kev ntes: MikroTik's switching architecture routes traffic through the CPU for some operations. Saib xyuas kev siv CPU yog tias koj ua dab tsi tshaj qhov yooj yim L2 xa mus.

 

Ubiquiti

USW-Cov tuam txhab lag luam thiab cov hloov tshiab UniFi feem ntau ua si zoo nrog thib peb- tog 2.5G modules. Tus tswj hwm UniFi qee zaus qhia cov lus ceeb toom txog "tsis muaj kev txhawb nqa transceivers" tab sis tsis tau thaiv kev ua haujlwm.

 

Cisco

Cisco's transceiver authentication yog ib tug pos nyob rau hauv network engineers 'sab rau kaum xyoo. Cov lus txib "kev pabcuam tsis muaj kev txhawb nqa-transceiver" muaj nyob rau hauv hom kev teeb tsa thoob ntiaj teb, thiab koj tseem yuav xav kaw qhov kev tshawb pom qhov yuam kev rau GBICs tsis raug ntawm qib interface. Cov lus txib no nyob hauv qhov chaw nres nkoj teeb tsa thiab tau sau tseg ntau hauv Cisco TAC sau ntawv.

Ntawm cov tshiab Catalyst 9000 series, qhov no yuav tsis tag nrho bypass lub kaw lus. Qee qhov modules ua haujlwm; ib co tsis. Cisco-coded tau tshaj optics los ntawm FS.COM lossis 10Gtek zoo li muaj kev vam meej ntau dua li lwm txoj hauv kev.

Rau 2.5G tshwj xeeb, koj tab tom saib Catalyst 9300/9400 nrog IOS tsis ntev los no -XE versions. Cov laus Catalyst 3850/3650 platforms tau txwv ntau -gig kev txhawb nqa rau cov kab ntawv tshwj xeeb.

 

Juniper

EX thiab QFX series hloov pauv siv PIC validation uas tsis tshua nruj dua Cisco tab sis tseem tam sim no. Thib peb-party modules feem ntau ua haujlwm tab sis tuaj yeem ua rau cov lus ceeb toom syslog uas ua rau kev soj ntsuam cov tshuab vwm.

Juniper's official 2.5G SFP kev txhawb nqa tseem txwv. Feem ntau kev xa tawm kuv tau ntsib siv 10G SFP + cov chaw nres nkoj nrog cov qauv uas sib tham. QFX5120 ua haujlwm zoo li no.

 

HPE thiab Aruba

Aruba hloov nrog AOS-CX feem ntau coj tus cwj pwm. Muaj ib qho kev teeb tsa thoob ntiaj teb kom tso cai rau cov transceivers uas tsis muaj kev txhawb nqa uas ua rau thib peb -party module ua haujlwm yam tsis muaj qhov txuas txuas.

Cov laus ProCurve thiab ArubaOS-Hloov platforms sib txawv heev los ntawm cov qauv thiab kho cov firmware. Txheeb xyuas cov ntawv tso tawm kom zoo-HPE muaj tus cwj pwm hloov pauv tus cwj pwm kev siv tau ntawm cov firmware versions.

 

Huawei thiab H3C

Muaj zog nyiam lawv tus kheej optics. Ob tus neeg muag khoom tuav cov npe sib xws uas tsis suav nrog txhua qhov thib peb -party modules. Hauv Suav teb loj xa tawm, qhov no tsis tshua muaj kev sib tham vim yog kev txhawb nqa cov ntawv cog lus.

Rau cov haujlwm thoob ntiaj teb, qee zaum koj tuaj yeem ua haujlwm nrog Huawei TAC rau whitelist tshwj xeeb tshaj plaws modules, tab sis cia siab tias yuav muaj kev pom zoo ntev.

 

Module Xaiv: Copper vs Fiber

 

Thaum Yuav Siv 2.5GBASE-T (RJ45)

Ua siab ncaj? Thaum koj nyam nrog Cat5e/Cat6 infrastructure uas twb muaj lawm thiab tsis tuaj yeem pom zoo rau kev xa tawm fiber ntau. Qhov ntawd yog qhov kev siv thawj zaug.

Qhov yooj yim ntawm tooj liab tuaj nrog kev ua lag luam -offs. Siab dua latency los ntawm PHY ua rau PAM4 encoding. Kev siv zog ntau dua. Thaum tshav kub kub tiam uas compounds nyob rau hauv ntom hloov configurations. Kev ncua deb ntawm 100 meters siab tshaj plaws, luv dua yog tias cable zoo yog marginal. Thiab susceptibility rau EMI nyob rau hauv kev lag luam ib puag ncig uas hluav taws xob nrov permeates txhua yam.

 

Thaum siv Fiber

Txhua yam dhau 100 meters pom tseeb yuav tsum muaj fiber ntau. Tab sis txawm nyob rau hauv qhov ntau, fiber ntau ua rau kev txiav txim siab rau siab - qhov sib nqus sib nqus sib nqus qhov twg thermal pob nyiaj tseem ceeb, ib puag ncig nrog cov suab nrov xws li cov chaw tsim khoom lossis cov chaw tshaj tawm, sab nraum zoov lossis lub tsev- mus rau - kev sib txuas hauv tsev, thiab yav tom ntej - pov thawj txij li tib lub fiber ntau txhawb 10G thiab 25G hloov kho txoj hauv kev.

 

 

Fiber Module Variants

Hom	Lub wavelength	Yam Ntxim Saib Ntxim Ua	Hom Fiber
2.5G-SX	850nm ua	300-550m	OM3 / OM4 multimode
2.5G-LX	1310nm ua	10km ua	OS 2 singlemode
2.5G-EX	1310nm ua	40km ua	OS 2 singlemode
2.5G-ZX	1 550nm	80km ua	OS 2 singlemode
2.5G-BX10	1270/1330 nm	10km ua	Simplex singlemode

BiDi (bidirectional) modules siv WDM los xa thiab tau txais ntawm ib qho fiber ntau strand. Tus nqi- siv tau thaum suav fiber ntau raug txwv, tab sis nco ntsoov tias koj xav tau kev sib tw ua khub-ib qho "sab sauv" module ntawm ib qho kawg, "kem" ntawm lwm qhov.

 

Kev daws teeb meem tiag tiag -Cov teeb meem hauv ntiaj teb

 

Module tsis pom

Ua ntej, xyuas qhov pom tseeb: yog lub module tau zaum tag nrho? SFP latching mechanisms qee zaus tsis ua haujlwm zoo. Thawb nws kom txog thaum koj hnov ​​qhov nias.

Yog tias lub rooj zaum lub cev zoo, tshuaj xyuas cov ntaub ntawv EEPROM module. Ntawm Linux systems, ethtool cov nqi hluav taws xob nrog lub module chij thiab lub npe interface qhia cov ntsiab lus transceiver nrog rau tus cim, cov ntaub ntawv muag khoom, thiab cov nqi txhawb nqa. Saib rau qhov chaw qhia. Siv tau SFP modules qhia 0x03 raws li tus lej cim. SFP + tshaj tawm 0x03 ib yam li vim lawv qhia tus cim tab sis sib txawv los ntawm tus nqi peev xwm. Kev nyeem ntawv ntawm 0x00 lossis 0xFF qhia EEPROM nyeem tsis ua haujlwm-txawm tias lub module tuag lossis I2C kev sib txuas lus tsis ua haujlwm.

Ntawm Cisco platforms, cov yeeb yam interfaces transceiver nthuav dav cov lus txib muab cov ntaub ntawv zoo sib xws nrog rau DOM nyeem yog tias txhawb nqa. MikroTik siv lub interface sfp-sfpplus saib cov lus txib ua raws li lub npe interface los tso saib tiag- lub sijhawm module raws li txoj cai thiab qib kho qhov muag.

 

Txuas Tsis ruaj tsis khov lossis CRC yuam kev

Rau tooj liab modules, qhov no yuav luag ib txwm taug qab rau cable zoo lossis ntev. Cat5e technically txhawb 2.5G raws li spec, tab sis degraded cables -kinked, crushed, los yog nrog corroded kev twb kev txuas - tej zaum yuav ua tsis tau 2.5G thaum tseem hla 1G tsheb yam tsis muaj qhov yuam kev.

Rau fiber ntau, xyuas cov qib hluav taws xob kho qhov muag. Tau txais lub hwj chim qis heev feem ntau qhia tau hais tias qhov kev sib txuas qias neeg, fiber ntau tawg, lossis ntau dhau qhov kev ncua deb dhau ntawm qhov ntsuas qhov ncav cuag. Tau txais lub zog siab dhau lawm tuaj yeem ua rau overdrive tus txais, txawm hais tias qhov no tsis tshua muaj nrog 2.5G thiab ntau dua nrog siab - lub zog ntev - ncav cuag optics ntawm cov txuas luv uas qhov kev txo qis tsawg.

Lub hom phiaj tau txais lub zog yuav tsum poob nruab nrab ntawm lub module qhov ntsuas qhov rhiab heev, feem ntau tsis zoo 19 txog qhov tsis zoo 21 dBm rau LX modules, thiab qhov saturation point ntawm qhov tsis zoo 3 txog qhov tsis zoo 1 dBm.

 

Kev sib tham ceev ceev tsis ua tiav

Yog hais tias qhov txuas tuaj tab sis ntawm qhov tsis ncaj ncees lawm, sim yuam tus nqi manually. RouterOS tso cai rau kev teeb tsa kev sib txuas ceev mus rau 2.5Gbps meej meej los ntawm kev sib txuas ntawm ethernet teeb tsa. Cisco IOS siv cov lus txib ceev nrog tus nqi 2500 ntawm theem kev teeb tsa interface.

Qee qhov hloov pauv tsis nthuav tawm 2.5G raws li qhov kev xaiv tsim tau txawm tias cov khoom siv txhawb nqa nws. Nov yog qhov kev hloov kho firmware qee zaum pab-thiab qee zaum tsis ua. Kuv twb nkim tav su ntawm lub qhov luav tshwj xeeb no.

 

Tus neeg muag khoom xauv-Nyob rau hauv Workarounds

 

Kuv yuav tsis ua txuj tias seem no tsis muaj. Qhov tseeb ntawm kev lag luam yog qhov qub - tus neeg muag khoom optics nqi 5-10x tus nqi sib txawv li cas, tseem muab kev ua haujlwm zoo ib yam.

 

Coded Compatible Modules

Txoj hauv kev yooj yim tshaj plaws: yuav thib peb - tog modules ua ntej -programmed nrog tus neeg muag khoom- cov lej tshwj xeeb. FS.COM, 10Gtek, FlexOptix, thiab Prolabs txhua tus muab cov kev pabcuam no. Koj xaiv lub hom phiaj lub platform thaum lub sijhawm xaj, qhia meej Cisco tau tshaj lossis Juniper tau tshaj lossis xijpeem cuam tshuam rau koj qhov kev xa tawm, thiab cov khoom xa tawm nrog tus neeg muag khoom tsim nyog ID thiab tus lej raug hlawv rau EEPROM.

Qhov no ua haujlwm zoo kawg nkaus. Lub module qhia nws tus kheej li Cisco SFP tiag tiag-GE-T lossis Juniper EX-SFP-1GE-T mus rau qhov hloov pauv kev nug cov txheej txheem, thiab qhov hloov pauv lees txais nws yam tsis muaj kev tsis txaus siab lossis kev txiav txim yuam kev.

 

EEPROM Reprogramming

Rau cov uas twb muaj lawm generic modules, SFP programmers tso cai hloov cov ntsiab lus ntawm EEPROM. FlexBox los ntawm FlexOptix yog tej zaum cov neeg siv feem ntau - kev xaiv tus phooj ywg nrog nws cov duab graphical interface thiab cov ntaub ntawv dav dav. Kuj tseem muaj cov programmers Suav pheej yig dua muaj nyob rau hauv cov channel ib txwm ua haujlwm tab sis xav tau kev tshaj lij thiab kev ua siab ntev.

Ib lo lus ceeb toom: cov ntaub ntawv EEPROM tsis raug cai tuaj yeem ua rau cov qauv tsis paub lossis ua rau tus cwj pwm tsis zoo thaum ua haujlwm. Nco ntsoov sau cov nqi qub ua ntej hloov pauv. Kuv khaws ib daim ntawv.

 

DOM Cov ntaub ntawv xav txog

Digital Optical Monitoring muab -lub sij hawm telemetry npog TX hwj chim, RX zog, kub, laser bias tam sim no, thiab muab voltage. Qee qhov coded modules qhia tseeb DOM cov ntaub ntawv uas hloov kho dynamically nrog cov xwm txheej tiag. Lwm tus tshaj tawm cov txiaj ntsig zoo li qub uas tsis hloov pauv txawm tias muaj dab tsi tshwm sim optically.

Rau cov tes hauj lwm ntau lawm qhov kev soj ntsuam tseem ceeb thiab koj tau saib ntawm koj lub dashboards, txheeb xyuas DOM kev ua haujlwm nrog koj qhov kev hloov tshwj xeeb thiab kev sib xyaw ua ke ua ntej xa tawm ntawm qhov ntsuas. Ib qho module uas qhia tau hais tias ruaj 0.0 dBm tau txais lub zog txawm tias qhov xwm txheej tiag tiag tsis muaj txiaj ntsig rau kev daws teeb meem fiber ntau.

 

 

Daim ntawv thov tshwj xeeb

 

NAS Connectivity

Synology thiab QNAP 2.5GbE-nrog NAS units tau ua rau muaj kev xav tau loj rau 2.5G SFP modules. Ob tus neeg muag khoom muag lawv tus kheej sib xws modules ntawm kev kwv yees markup.

Hauv kuv qhov kev paub dhau los, QNAP QXG-2G1T-I225 network expansion cards thiab Synology E10G22-T1-Mini ua haujlwm zoo nrog cov neeg muag khoom thib peb loj. Qhov kev txwv feem ntau yog NAS's PCIe bandwidth thiab CPU nyiaj siv ua haujlwm rau SMB3 multichannel workloads, tsis yog lub network txuas nws tus kheej. Tsis txhob cia siab tias yuav xaim xaim ceev thaum lub sijhawm ua haujlwm hnyav RAID rov tsim kho.

 

WiFi 6 thiab 6E Access Point Uplinks

Thawj yog vim li cas rau 2.5G uas twb muaj lawm nyob rau hauv thawj qhov chaw. Cov lag luam niaj hnub no APs suav nrog Cisco Catalyst 9100 series, Aruba 630, thiab Ruckus R750 suav nrog 2.5GBASE-T lossis 5GBASE-T uplink ports tshwj xeeb vim tias cov khoom sib txuas wireless tam sim no muaj peev xwm tshaj 1G.

Nyob qhov twg fiber ntau rov qab mus rau AP qhov chaw muaj, 2.5G SFP modules ntawm qhov hloov pauv ua ke nrog tooj liab media converters ze ntawm AP tuaj yeem raug nqi ntau dua - zoo dua li hloov cov cabling. Nws yog kev lag luam - tawm ntawm tus nqi module, tus nqi hloov pauv, thiab kev ua haujlwm los rub cov cable tshiab. Ua lej rau koj qhov xwm txheej tshwj xeeb.

 

Multi-Gig Desktop Connectivity

Ib qho niche tab sis loj hlob siv rooj plaub. Chaw ua haujlwm nrog 2.5GBASE-T NICs raws li Intel I225 lossis Realtek RTL8125 controllers txuas los ntawm 2.5G hloov mus rau NAS lossis cov servers hauv zos.

Tus nqi lus pom zoo: txhim kho kev ua tau zoo tshaj 1G rau kev hloov ntaub ntawv loj yam tsis muaj nqi ntawm 10G infrastructure txhua qhov chaw. Txawm hais tias qhov no tseem ceeb yog nyob ntawm koj qhov kev ua haujlwm. Video editors tsiv multi-gigabyte project files pom qhov txawv tam sim ntawd. Cov neeg siv khoom lag luam loj hauv chaw ua haujlwm thawb cov ntaub ntawv Office thiab email tej zaum tsis pom dab tsi dhau ntawm cov txiaj ntsig placebo.

 

Txoj Kev Ua Lag Luam

2.5G SFP modules tseem tshuav qee yam ntawm cov khoom tshwj xeeb piv rau lawv cov 1G thiab 10G counterparts. Cov neeg muag khoom loj tshaj tawm lawv, tab sis kev xaiv yog nqaim thiab qee qhov sib txawv yuav xav tau kev txiav txim ntau dua li kev xa khoom los ntawm cov khoom muag hauv zos. Lub sij hawm ua cov hmoov txhuas tuaj yeem txuas ntxiv thaum muaj kev cuam tshuam ntawm cov khoom siv sib txuas- tej yam uas peb txhua tus tau mob siab rau tsis ntev los no.

Tus nqi thaum lig 2024 qhia generic 2.5G-T SFP modules khiav 25−45dependingonquantityandsupplier.Codedcompatiblemodulesaddamodestpremiumat25−45dependingonquantityandsupplier.Codedcompatiblemodulesaddamodestpremium Generic 2.5G-LX optical modules tuaj nyob rau ntawm 20-35forstandardreachversions.OEMoriginalmodulesfromtheswitchvendorsthemselvescommand20−35forstandardreachversions.OEMoriginalmodulesfromtheswitchvendorsthemselvescommand80-200 lub logo nyob ntawm seb yog dab tsi

Tus nqi them rau thawj tus neeg muag khoom optics tseem tsis muaj kev tiv thaiv rau feem ntau cov koom haum sab nraum kev ua raws cai lossis cov ntawv pov thawj. Cov ntawv cog lus txhawb nqa kev lag luam tsis tshua xav tau OEM transceivers txawm tias tus neeg muag khoom siab xav qhia lwm yam. Nyeem koj daim ntawv cog lus ua tib zoo- hom lus feem ntau hais tias "txhawb nqa transceivers" tsis yog "tus neeg muag khoom-branded transceivers" thiab cov qauv sib xws nrog cov khoom lag luam zoo raws li qhov yuav tsum tau ua.

 

Kev xav zaum kawg

2.5G SFP compatibility tsis nyuaj- nws tsuas yog cov ntaub ntawv tsis zoo los ntawm cov neeg uas yuav tsum paub zoo dua. Lub tshuab ua haujlwm. Interoperability muaj nyob thoob plaws platforms thaum koj phim cov modules txoj cai mus rau txoj cai keyboards. Cov teeb meem tshwm sim los ntawm cov neeg muag khoom lag luam kev txiav txim siab nyob ib puag ncig transceiver authentication thiab cov kev txwv dag es tsis yog cov kev txwv tseem ceeb hauv cov modules lawv tus kheej.

Ua ntej yuav cov modules kom muaj nuj nqis, yuav ib qho qauv thiab sim nrog koj tus qauv hloov tshwj xeeb thiab firmware version. Dab tsi ua haujlwm ntawm daim ntawv qee zaum ua tsis tiav hauv kev xyaum, thiab qee zaus qhov thim rov qab tshwm sim qhov twg cov khoom siv tsis sib xws ua haujlwm zoo. Tso siab rau cov txiaj ntsig ntawm cov ntaub ntawv pov thawj thiab cov rooj sib tham los ntawm peb lub xyoos dhau los.

2.5G ceev tier yuav muaj feem cuam tshuam rau ntau xyoo ntxiv, tshwj xeeb tshaj yog WiFi 7 raws li 802.11be thawb AP sib sau ua ke ntau dua. Txawm hais tias nws thiaj li tau nkag mus rau hauv universal multi- tus nqi ports uas tswj txhua yam ntawm 1G mus txog 25G txiav, lossis ploj mus rau hauv qhov tsis pom tseeb nrog rau lwm cov thev naus laus zis hloov pauv xws li 100VG-AnyLAN, lub hauv paus nruab tam sim no qhia txog kev nkag siab yuav ua li cas ua cov qauv no ua haujlwm tau zoo hauv qhov chaw tsim khoom.