Network Switch SFP Ports: Configuration Guide for every Platform
May 14, 2026| Yuav ua li cas SFP Ports tiag tiag ua haujlwm - Thiab yog vim li cas Module tseem ceeb tshaj qhov Slot
SFP chaw nres nkoj yog modular, kub-swappable qhov ntawm lub network hloov tsim los txais daim ntawv me-factor Pluggable transceiver modules. Qhov chaw nres nkoj nws tus kheej yog xov xwm -agnostic - nws tsis txiav txim siab seb koj qhov txuas puas hla fiber ntau lossis tooj liab, ib qho -hom lossis multimode, 1G lossis 10G. Qhov kev txiav txim siab ntawd yog tag nrho ntawm qhov module koj ntxig.
Qhov tshwm sim tshwm sim hauv thawj qhov kev daws teeb meem hu xov tooj: tus kws tshaj lij ntxig rau 1000BASE-LX module, pom qhov cuam tshuam tuaj rau hauv CLI, tom qab ntawd siv sijhawm 40 feeb xav paub tias yog vim li cas qhov txuas yog flapping - kom txog thaum DDM qhia Rx lub zog ntawm −32 dBm, 18 dB hauv qab rhiab heev. Qhov chaw nres nkoj tsis yog qhov teeb meem. Lub multimode fiber nyob rau sab nraud yog. Qhov chaw nres nkoj muab cov hluav taws xob sib cuam tshuam thiab cov cuab yeej cuab tam raws nraim li tsim; lub transceiver tuav lub teeb liab hloov dua siab tshiab ntawm lub cev txheej; thiab qhov tsis sib haum xeeb tshwm sim hauv cov nroj tsuag fiber ntau, tsis yog qhov hloov pauv.
SFP daim ntawv foos hnub rov qab mus rauINF-8074i Multi-Source Agreement, luam tawm xyoo 2001 thiab kos npe los ntawm kaum tsib lub tuam txhab suav nrog Finisar, IBM, thiab Agilent Technologies. Tus qauv ntawd txo qis GBIC module ua ntej mus txog kwv yees li ib nrab ntawm nws qhov ntim, hloov cov khoom sib txuas ntawm SC rau LC, thiab ua rau 48-chaw nres nkoj kab ntawv siv tau thawj zaug (SFF Pawg Neeg Saib Xyuas). Txhua tiam tom ntej - SFP+, SFP28, SFP-DD - ua raws li tus qauv MSA-tsav kev sib cuam tshuam, thiab SFP tsev neeg tseem suav txog kwv yees li 35.7% ntawm tag nrho cov khoom xa tawm optical transceiver thoob ntiaj teb txij li xyoo 2025 (GM Insights).
Uplink, Downlink, thiab Combo: Peb qhov chaw nres nkoj SFP uas ua haujlwm txawv
Tsis yog txhua lub network hloov SFP cov chaw nres nkoj sib npaug. Lawv poob rau hauv peb pawg ua haujlwm, txhua qhov sib txawv ntawm qhov chaw nyob hauv lub network hierarchy. Tsis meej pem lawv ua rau mismatched speeds, nkim ports, thiab topology tsim yuam kev.
Uplink SFP Ports
txuas koj qhov kev hloov mus rau siab dua -tier li - aggregation lossis core keyboards - thiab feem ntau ua haujlwm ntawm qhov nrawm dua li qhov chaw nkag. Ntawm kev nkag mus rau kev lag luam nrog 24 lossis 48 RJ45 gigabit ports, uplink SFP + qhov feem ntau khiav ntawm 10G lossis 25G.
Downlink SFP Ports
tshwm sim ntawm cov keyboards ua rau tag nrho -fiber access ib puag ncig - tsev kho mob siv fiber ntau- mus rau - lub - rooj, cov nroj tsuag uas muaj tooj liab yog impractical vim electromagnetic cuam tshuam, los yog lub tsev kawm ntawv networks khiav fiber ntau ntawm hauv pem teb closets.
Combo SFP Chaw nres nkoj
yog cov to taub yuam kev tshaj plaws. Ib qho chaw nres nkoj sib txuas ua ke ib qhov SFP nrog ib qho RJ45 jack uas nyob ib sab, sib koom ib qho kev sib txuas lus, ib tus lej chaw nres nkoj, thiab ib qho chaw nyob MAC.
Tsuas yog ib qho kev sib txuas ntawm lub cev tuaj yeem ua haujlwm ntawm ib lub sijhawm. Ntxig ib qho SFP module thiab RJ45 jack disables txiav; tshem nws thiab qhov chaw nres nkoj tooj liab reactivates. Qhov kev sib koom ua ke no yog los ntawm kev tsim - cov ntaub hloov pauv tsis tuaj yeem ua haujlwm ob leeg ib txhij vim tias lawv sib koom tib qhov kev hloov pauv sab hauv. Cov engineers tshiab niaj hnub txuas ob sab thiab siv sijhawm ib teev xav paub vim li cas ib qhov txuas tsis nyob. Yog tias koj cov peev nyiaj tso cai rau nws, xaiv qhov kev nkag mus nrog combo SFP cov chaw nres nkoj hla ib qho nrog RJ45 ruaj khov-tsuas yog interfaces - tus qauv combo muab rau koj yooj yim xa mus rau yav tom ntej fiber ntau tsiv teb tsaws, tsis muaj kev txwv.
Qhov sib txawv ntawm qhov chaw nres nkoj SFP thiab RJ45 qhov chaw nres nkoj ntawm lub network hloov mus rau peb qhov sib txawv: qhov muaj peev xwm nyob deb (SFP nrog fiber ntau ncav cuag kilometers; RJ45 nrog tooj liab sab saum toj ntawm 100 m), bandwidth qab nthab (SFP + thiab SFP28 chaw nres nkoj txhawb 10G thiab 25G ib txwm muaj; RJ15 cov chaw nres nkoj ntau tshaj plaws) chaw nres nkoj txais fiber ntau lossis tooj liab modules nyob ntawm qhov xav tau;
Sib piv txoj cai SFP Module rau koj qhov chaw nres nkoj hloov
Lub module xaiv ib theem teeb meem: chaw nres nkoj hom → ceev → fiber ntau hom → nrug → wavelength. Hla ib kauj ruam thiab koj pheej hmoo xaj khoom kho vajtse uas haum rau lub cev tab sis ua haujlwm tsis tau.
Pib nrog qhov chaw nres nkoj qhov ntsuas ceev. Ib qho SFP chaw nres nkoj ntsuas rau 1G yuav lees txais 1G SFP module - ntxig rau SFP + (10G) module rau hauv 1G-tsuas yog qhov chaw nres nkoj tsim tsis muaj qhov txuas. Qhov thim rov qab feem ntau ua haujlwm: feem ntau 10G SFP + cov chaw nres nkoj lees txais 1G SFP modules thiab kaw lub interface ntawm 1 Gbps, txawm tias koj txi cuaj-feem kaum ntawm qhov chaw nres nkoj lub peev xwm.
Tom ntej no, phim hom fiber ntau. Ib qho -hom SFP (9 μm core, feem ntau 1310 nm lossis 1550 nm wavelength) thiab multimode SFP (50 μm lossis 62.5 μm core, feem ntau 850 nm) yog lub cev tsis sib haum nrog txhua tus cabling. Ib tus kws ua haujlwm tau sau tseg ob-teev teeb meem kev sib tham uas tau xaus thaum nws pom nws tau ua ke ib qho 850 nm multimode module ntawm ib kawg nrog 1310 nm ib qho -mode module ntawm lwm yam - wavelengths tsis sib xws, hom fiber ntau tsis sib xws, thiab qhov txuas tsis tuaj yeem ua haujlwm.
Kev ncua deb txiav txim qhov module variant nyob rau hauv txhua pawg fiber ntau. Multimode 10G SFP + SR nce mus txog 300 m ntawm OM3 fiber ntau thiab 400 m ntawm OM4. Tib -mode 10G SFP+ LR npog 10 km. Txuas ntxiv- mus txog ER modules thawb mus rau 40 km, thiab ZR variants ncav cuag 80 km. Txhua kauj ruam nce hauv qhov kev ncua deb raug nqi ntau dua thiab siv nyiaj siv hluav taws xob ntau dua.
Rau khib- kev sib txuas sab hauv qis dua 7 meters, sivPassive DAC cables- tsis yog transceivers. Tus nqi rooj plaub ($ 15-30 piv rau $ 70-120 rau ib khub ntawm optical modules) thiab cov ntaub ntawv latency (0.1 μs piv rau 0.3 μs) ob qho tib si taw qhia tib yam. Ib lub chaw khaws ntaub ntawv rov qab ua dua uas hloov pauv 40+ intra- khib SFP chaw nres nkoj sib txuas los ntawm transceivers rau DAC cables txuag $ 3,800 nrog them rov qab tam sim. Tab sis passive DAC qhov deb txwv txo qis nrog txhua qhov ceev tiam - ntawm 800G, peb ntsuas qhov txuas kev cob qhia ua tsis tiav siab tshaj 60% ntawm tsuas yog 3 meters, yuam kom hloov mus rau cov hluav taws xob hluav taws xob rau txhua yam dhau 2 m. Lub physics ntawm tooj liab poob ntawm 112G PAM4 ib txoj kab yooj yim yuav tsis tso cai rau nws. Cov ncauj lus kom ntxaws qhia txog ntawmSFP transceiver xaiv kev txiav txim lub moj khaumnpog cov lag luam tawm txheej txheej los ntawm txheej.
CLI Configuration hla Cisco, Juniper, Arista, thiab MikroTik
Cov hauv qab no suav nrog cov haujlwm tseem ceeb rau SFP kev teeb tsa chaw nres nkoj - kev txheeb xyuas qhov sib txuas, ceev thiab duplex chaw, VLAN trunking, thiab transceiver diagnostics - thoob plaws plaub lub platform loj.
Cisco IOS / IOS{0}}XE
Txheeb xyuas SFP kev cuam tshuam los ntawm lawv lub npe kev sib tham - GigabitEthernet1/0/25 rau 1G SFP chaw nres nkoj, TenGigabitEthernet1/0/1 rau SFP + uplinks. Ntawm Catalyst 9000 series, lub npe hloov mus rau TwentyFiveGigE.
Txhim kho lub cev qhov chaw nres nkoj ntawm SFP uplink interface rau ntau -VLAN cov tsheb thauj mus los:
Interface TenGigabitEthernet1/0/1
switchport hom pob tw
switchport lub cev tso cai vlan 10,20,30
switchport pob tw haiv neeg vlan 1
tsis muaj kev kaw
Txheeb xyuas qib transceiver optical nrog DDM (Digital Diagnostics Monitoring):
qhia interfaces TenGigabitEthernet1/0/1 transceiver nthuav dav
Qhov no xa rov qab xa hluav taws xob (dBm), txais lub zog (dBm), qhov kub thiab txias (degree), thiab muab qhov hluav taws xob - plaub qhov tseem ceeb uas qhia koj seb qhov teeb meem txuas yog kho qhov muag, thermal, lossis hluav taws xob. Ib qho tau txais lub zog hauv qab lub module qhov ntsuas qhov rhiab heev - feem ntau nyob ib ncig ntawm −17 dBm rau 10G SR, −14.4 dBm rau 10G LR (ib IEEE 802.3 ua) - qhia tias fiber ntau attenuation los yog connector contamination, tsis module tsis ua hauj lwm. Cov lus txib no siv rau IOS-XE 17.x; ntawm cov laus IOS 15.x, cov lus piav qhia ntawm cov transceiver yuav tsis muaj - siv qhia interfaces transceiver yam tsis muaj tus chij nthuav dav.
Juniper Junos
Juniper npe SFP interfaces li ge-0/0/0 (1G) los yog xe{11}}0/0/0 (10G). Qhov kev coj cwj pwm tseem ceeb tshaj plaws los ntawm Cisco: Juniper tsis tshua muaj kev txhoj puab heev ntawm tus neeg muag khoom xauv. Thib peb- tog SFP modules feem ntau ua haujlwm yam tsis muaj kev cuam tshuam CLI, txawm hais tias syslog yuav nco ntsoov tus neeg muag khoom module tsis yog Juniper. Qhov sib txawv ib leeg no hloov qhov sib npaug ntawm kev yuav khoom rau ntau qhov chaw muag khoom.
Configure lub cev:
teeb interfaces xe-0/0/0 unit 0 family ethernet-hloov interface-mode trunk
teeb interfaces xe-0/0/0 unit 0 family ethernet-switching vlan member VLAN10
teeb interfaces xe-0/0/0 unit 0 family ethernet-switching vlan member VLAN20
Tshawb xyuas optics:
qhia interfaces diagnostics optics xe-0/0/0
Arista EOS
Arista ua raws Cisco-style syntax ze txaus uas cov engineers hloov ntawm ob lub platform tsis tshua muaj kev cuam tshuam - SFP+ chaw nres nkoj tshwm li Ethernet1 los ntawm EthernetN, thiab switchport command tsev neeg ua haujlwm yuav luag zoo ib yam. Qhov twg Arista diverges yog nyob rau hauv cov khoom muag module nrhiav: qhia cov khoom muag rov qab modules serial tooj thiab cov neeg muag khoom txheeb xyuas nyob rau hauv ib tug parseable hom muaj txiaj ntsig rau kev tshuaj xyuas qhov thib peb -party modules tau siv thoob plaws lub nkoj.
Lub cev configuration:
interface Ethernet49
switchport hom pob tw
switchport lub cev tso cai vlan 10,20,30
Transceiver diagnostics:
qhia interfaces Ethernet49 transceiver
MikroTik RouterOS
MikroTik khwv tau nyiaj tshwj xeeb vim nws SFP + chaw nres nkoj ntawm CRS305 thiab CRS309 nthuav tawm ntau- tus nqi SerDes muaj peev xwm. Tib qhov chaw nres nkoj tuaj yeem khiav 1G, 2.5G, 5G, lossis 10G nyob ntawm qhov tso module thiab qhov chaw ceev - qhov yooj yim feem ntau cov tuam txhab hloov pauv txhob txwm txwv.
Configure SFP + chaw nres nkoj hauv RouterOS:
/interface ethernet teeb sfp-sfpplus1 ceev=10Gbps pib-kev sib tham=tsis
Nco ntsoov auto-kev sib tham= tsis yog. SFP + txuas tsis pib- sib tham ceev lossis duplex - qhov no yog txhais los ntawm tus qauv, tsis yog tus neeg muag khoom quirk. Kev teeb tsa SFP cov chaw nres nkoj rau nws pib-kev sib tham yog ib qho ntawm cov teeb meem tshwm sim ntau tshaj plaws nyob rau txhua lub platform thiab qhov chaw ntawm suav tsis txheeb daim pib. Ntawm 10G SFP + kev sib txuas, lub interface yuav tsum tau teem kom meej rau 10 Gbps tag nrho duplex.
Cov piv txwv CLI saum toj no npog cov hauv paus sfp lub cev chaw nres nkoj teeb tsa rau VLAN trunking thiab kuaj mob. Tab sis firmware-version- tshwj xeeb ntug rooj plaub - ntau-chassis stacking cwj pwm, ASIC-theem tus nqi- txwv tsis pub cov chaw nres nkoj tshwj xeeb, thiab ib qho -platform DDM kev xaiv tsa lub sijhawm uas cuam tshuam rau kev soj ntsuam xyuas qhov tseeb - los yog kev kuaj xyuas koj cov ntaub ntawv nyuaj. Tsis muaj ib daim ntawv qhia tuaj yeem hloov pauv rau cov kauj ruam pov thawj ntawd.
Thib peb-Party Modules thiab Tus Muag Khoom Xauv-Nyob rau hauv Engineering teeb meem
Branded SFP modules los ntawm Cisco, HPE, los yog Juniper raug nqi 5–10 × ntau tshaj qhov ua haujlwm zoo ib yam MSA- ua raws li kev hloov pauv los ntawm cov tuam txhab ywj pheej. Cov kev qhia tshwj xeeb yog tib yam - tib lub laser, tib lub photodetector, tib lub wavelength, tib ncav cuag. Qhov txawv yog ob peb bytes ntawm cov ntaub ntawv hlawv rau hauv module's EEPROM.
MSA tshwj xeeb tshwj tseg EEPROM bytes 96 txog 127 ntawm qhov chaw nyob 0xA0 raws li "tus neeg muag khoom- tshwj xeeb." Hloov cov tuam txhab sau cov cim qhia tus kheej rau hauv lawv tus kheej modules. Thaum lub hloov pauv firmware nyeem ib qho thib peb -party module thiab pom cov lej tsis paub hauv cov bytes, nws tuaj yeem cuam tshuam "tsis txhawb nqa transceiver" ceeb toom lossis lov tes taw SFP chaw nres nkoj ncaj qha. Qhov no tsis yog MSA qhov yuav tsum tau ua - nws yog firmware- theem txoj cai txheej txheej saum toj ntawm tus qauv. Cov khoom tsis lees paub tseem ua tau raws li txhua yam khoom siv, hluav taws xob, thiab kho qhov muag hauv INF-8074i. Ib tug sib sib zog nqus kev puas tsuaj ntawmYuav ua li cas MSA specs cuam tshuam nrog cov neeg muag khoom txwvnpog no mechanism nyob rau hauv kom meej.
Thib peb- cov neeg muab khoom lag luam tawm tsam qhov no los ntawm kev ua haujlwm sib luag cov lej muag khoom. Ntawm Cisco IOS, cov thawj coj kuj tseem tuaj yeem hla qhov kev kuaj tag nrho:
kev pabcuam tsis txhawb nqa -transceiver
tsis muaj errdisable ntes ua rau gbic-invalid
Ob qho lus txib tau muab zais - lawv yuav tsis tshwm sim nrog ? tab ua tiav. Thiab Cisco TAC tau hais meej meej tias kev siv thib peb - tog transceivers tuaj yeem ua tsis muaj kev lav phib xaub ntawm qhov chaw nres nkoj cuam tshuam lossis hloov pauv, txoj cai sau tseg los ntawm cov kws tshaj lij network ywj pheej uas tau sim ciam teb ua ntej. Cov kev taw qhia siv tau: yog tias qhov hloov pauv nyob rau hauv daim ntawv cog lus Cisco SMARTnet nquag thiab qhov txuas yog tsim tawm - tseem ceeb, siv tus neeg muag khoom -coded tshaj modules es tsis yog cov lus txib override. Rau qhov chaw kuaj mob, kev sim ua ntej- kev tsim khoom, thiab tsis yog- txuas tseem ceeb, kev hla dhau tsis muaj txiaj ntsig txaus ntshai.
Peb tsim MSA-raws li SFP, SFP+, thiab SFP28 modules thiab sim lawv hla 14 hloov platforms suav nrog Cisco Nexus, Catalyst, Arista 7000 series, thiab Juniper EX/QFX. Peb tsis mus ua txuj tias peb tsis muaj kev lag luam txaus siab rau lub ncauj lus no. Tab sis qhov tseeb engineering yog ncaj nraim: thaum optics ua tau raws li qhov tshwj xeeb, qhov txuas ua haujlwm. Thaum nws tsis yog, qhov ua rau yog yuav luag ib txwm firmware txoj cai, tsis yog physics.
Troubleshooting SFP Port Issues: Ib Layered Diagnostic Model
Raws li peb tus kheej RMA cov ntaub ntawv los ntawm 2022 txog 2025, tsawg dua 10% ntawm SFP modules xa rov qab rau peb raws li "kev puas tsuaj" ua tsis tau lub rooj zaum sim. Qhov seem 90% + taug qab rau kev teeb tsa yuam kev, kev sib kis kab mob sib kis, lossis kev teeb tsa tsis sib haum. Ua ntej xaj ib qho hloov pauv, ua haujlwm los ntawm plaub txheej kuaj mob hauv qab no - hloov pauv tsuas yog ib qho sib txawv ntawm ib lub sijhawm.
Txheej 1 - Lub cev
Paub meej tias lub module tau zaum tag nrho (koj yuav tsum xav thiab hnov lub latch nyem). Tshawb xyuas fiber ntau connector endfaces nrog fiber ntau microscope - tsis yog kev kuaj pom, qhov tseeb 200 × – 400 × tshuaj xyuas. Ib qho tsis pom cov plua plav lossis cov roj smudge ntawm LC ferrule qhia txog qhov poob txaus kom poob 10G txuas. Ntxuav nrog kho qhov muag -qib so. Xyuas kom pom tias lub kaus mom plua plav tau raug tshem tawm ntawm ob qho tib si module thiab cov hlua txuas. Xyuas kom tseeb tias lub cable tsis khoov hauv qab nws qhov tsawg kawg nkaus khoov vojvoog.
Txheej 2 - Optical
NyeemDDM tus nqi ntawm CLI(Qhia cov ncauj lus qhia txog kev sib txuas lus ntawm Cisco, qhia txog kev kuaj xyuas qhov muag ntawm Juniper). Sib piv tau txais lub hwj chim kho qhov muag tiv thaiv lub module qhov ntsuas tau txais rhiab heev. Yog tias Rx lub zog qis dua qhov pib, qhov teeb meem yog fiber ntau txoj kev poob - tsis yog qhov module. Ua ib qho kev suav nyiaj siv hluav taws xob kho qhov muag: rho tawm tag nrho qhov txuas tsis tau (fiber attenuation + connector poob + splice losses) los ntawm transmitter tso zis zog. Yog tias qhov tshwm sim poob qis dua qhov kev nkag siab ntawm tus neeg txais, koj xav tau txoj kev luv dua, cov khoom sib txuas zoo dua, lossis siab dua - lub zog module. Ib qho kev ntsuas loopback cais module thiab chaw nres nkoj noj qab haus huv sai dua li lwm txoj hauv kev. Txuas lub module's Tx rau nws tus kheej Rx nrog fiber ntau loopback cable. Yog hais tias lub interface los txog, lub module thiab chaw nres nkoj tau lees paub tias ua haujlwm - qhov txhaum nyob rau sab nraud fiber ntau cog. Ib qho kev nthuav dav uas tseem ceeb rau ib zaug -mode loopback: lub transmitter tso zis tuaj yeem tshaj lub receiver lub siab tshaj plaws input zog nyob ze -zero nrug, ua rau poob ntawm lub tswb ceeb toom. Ntxiv 10 dB inline attenuator ntawm Tx sab ua ntej txuas lub voj rov qab kom tau txais lub zog nyob rau hauv lub module lub qhov rais ua haujlwm nyab xeeb.
Txheej 3 - Compatibility
Txheeb xyuas qhov sib txuam nrawm: 10G SFP + module hauv 1G- tsuas yog SFP chaw nres nkoj yuav tsis tsim qhov txuas hauv txhua qhov xwm txheej. Xyuas wavelength pairing: ob qhov kawg yuav tsum siv tib lub wavelength (piv txwv li, 1310 nm txog 1310 nm). Paub meej tias tus neeg muag khoom coding raws li txoj cai - ntawm Cisco, kos qhia kev nkag|suav nrog SFP rau "tsis txhawb nqa transceiver" cov lus. Yog hais tias lub module raug tsis lees paub los ntawm firmware es tsis yog los ntawm physics, qhov kev daws teeb meem yog tus neeg muag khoom coding lossis cov lus txib override, tsis yog hloov kho vajtse.
Txheej 4 -Kev teeb tsa
Xyuas seb qhov chaw nres nkoj puas raug kaw (shutdown hauv qhov kev khiav haujlwm). Xyuas kom tseeb tias ceev thiab duplex tsis tau teem rau nws pib ntawm SFP + cov chaw nres nkoj - raws li tau sau tseg ua ntej, 10G SFP + txuas yuav tsum tau kho meej meej - kev teeb tsa ceev. Paub meej VLAN kev koom ua tswv cuab yog tias qhov chaw nres nkoj tau teeb tsa raws li lub cev: lub cev qhov chaw nres nkoj uas tsis suav nrog qhov xav tau VLAN yuav tsis muaj tsheb khiav rau VLAN txawm tias qhov txuas lub cev muaj kev noj qab haus huv.
Cov qauv plaub - txheej txheej no npog cov kab mob sib kis rau kev daws teeb meem ntawm SFP chaw nres nkoj. Tab sis qhov tseeb CLI cov lus txib rov qab txawv ntawm IOS-XE, Junos, thiab EOS - tshwj xeeb tshaj yog cov errdisable rov qab syntax thiab DDM lub tswb pib teeb tsa. Rau qhov kev siv tob dua ntawm SFP module cross- txoj cai sib raug thiab xaiv cov qauv uas pub rau hauv Txheej Txheej 3, cov lus qhia kev xaiv npog cov rooj plaub ntug uas ua rau feem ntau xa mus tsis tau.
Thermal txwv uas tus neeg muag khoom cov ntaub ntawv Buries
Siab - qhov ceev network hloov SFP chaw nres nkoj xa mus tsoo lub phab ntsa uas tsis muaj nqi ntawm kev teeb tsa tuaj yeem kho tau: cua sov. Qhov no tshwj xeeb tshaj yog mob nrog10GBASE-T tooj liab SFP + modules, uas kos lub zog ntau dua li optical SFPs thiab hloov ntau ntawm nws mus rau thermal zog.
Yav dhau los- tiam 10GBASE-T modules siv 5-8 W rau ib chav. Tam sim no - tiam modules siv Broadcom BCM84891 los yog Marvell AQR113C PHY chipsets tau txo qhov ntawd mus rau 1.5–2.5 W - ib qho kev txhim kho loj heev, tab sis tseem muaj txiaj ntsig ntawm qhov ntsuas. Cisco cov lus qhia txog kev siv nyiaj siv hluav taws xob rau Nexus 9000 series siv cov thermal derating yam uas muaj txiaj ntsig zoo rau kev txias nyiaj siv ua haujlwm saum toj ntawm raw transceiver kos - nyob rau hauv siab -nruj configurations, tag nrho cov hwj huam faib rau ib populated SFP + chaw nres nkoj khiav 1.5–2 × lub module lub zog rated nyob rau hauv wattage kuj. 48-chaw nres nkoj hloov puv puv nrog 10GBASE-T modules ntawm 2 W txhua tus tsis yog ntxiv 96 W ntawm lub zog transceiver; tag nrho cov thermal cuam tshuam rau lub chassis txias system yog ntau dua.
Tsis txhob ua kom puv 48- chaw nres nkoj hloov nrog tooj liab SFP + modules yam tsis tau kuaj xyuas koj tus neeg muag khoom qhov chaw nres nkoj thawj zaug - los ntawm - chaw nres nkoj thermal faib lub rooj. Cisco Nexus 9000 thiab Arista 7050 cov ntaub ntawv ob leeg pom zoo kom tawm hauv qhov sib txawv ntawm cov chaw nres nkoj rau cov chav tsev thermal. Cov lus pom zoo no muaj nyob rau hauv kev sib raug zoo matrices thiab kev sau ntawv, tsis yog hauv cov khoom lag luam - uas yog vim li cas cov engineers pom lawv tsuas yog tom qab modules pib throttling lossis ua rau lub tswb nrov nrov. Lub tswb tshwm sim ntawm theem chaw nres nkoj, tsis yog chassis theem, uas ua rau lawv yooj yim nco txog kom txog thaum lub hloov pauv pib xa khoom hauv kev tsim khoom.
Lub tswv yim xa tawm yog kom tsis txhob muaj chaw nres nkoj, khaws tooj liab SFP + modules rau kev sib txuas qhov twg RJ45 qhov kawg qhov sib xws tsis yog - sib tham, thiab siv qhov muag SFPs (uas kos qis dua 1 W txhua) rau txhua yam. Nyob rau hauv ib puag ncig nrog cable nrug qis dua 7 m, passive DAC cov rooj sib txoos tshem tawm cov thermal hloov pauv tag nrho.
Plaub qhov xwm txheej xa mus thiab SFP Configuration Txhua Yuav Tsum Tau
Scenario xaiv yog qhov kev xav tau raws li kev txiav txim yuav khoom. Txhua yam hauv qab no sawv cev rau tus qauv xa tawm tiag tiag nrog rau cov qauv tshwj xeeb thiab qhov chaw nres nkoj teeb tsa.
Inter- chaw ua haujlwm hauv pem teb fiber ntau txuas
Kev ncua deb: 100-300 m. Siv combo SFP cov chaw nres nkoj (yog tias muaj nyob ntawm koj qhov kev nkag mus) nrog 1000BASE-SX multimode modules ntawm OM3/OM4 fiber ntau. Kho qhov chaw nres nkoj raws li lub cev nqa koj lub chaw ua haujlwm VLANs. Combo ports muab koj rov qab rau tooj liab yog tias txoj hauv kev fiber ntau tseem tsis tau teeb tsa - pab tau thaum lub sijhawm ua haujlwm hauv theem ua haujlwm. Qhov kev pom zoo no xav tias koj cov fiber ntau khiav huv si thiab txuas tau zoo; Yog tias lub tsev siv OM1/OM2 fiber ntau qub, SX ncav cuag tee mus rau qis dua 275 m ntawm OM2, thiab tej zaum koj yuav tau rov- ntsuam xyuas nrog LX modules ntawm ib hom - hom.
Cov ntaub ntawv chaw saum toj kawg nkaus - ntawm - khib uplinks
Kev ncua deb: 1–10 m nyob rau hauv tib kab, mus txog 300 m kom kawg - ntawm - kab aggregation.SFP + uplink ports khiav 10G SR ntawm OM3 multimode. Rau sub-7 m intra- kev sib txuas khib, hloov cov transceiver khub nrog passive DAC cables ntawm kwv yees li ib qho - tsib tus nqi. Configure link aggregation (LACP) hla ntau SFP + uplinks rau redundancy thiab bandwidth pooling. Yog tias koj tab tom npaj rau 25G neeg rau zaub mov txuas ntawm tib qhov kev hloov, xyuas kom meej tias SFP28 uplink ports txais SFP + modules ntawm 10G - feem ntau ua, tab sis qee qhov firmware versions xav tau kev teeb tsa ceev ceev ua ntej qhov chaw nres nkoj yuav paub txog tus nqi qis dua.
Lub tsev kawm ntawv qaum teb nruab nrab ntawm cov tsev
Ntev: 500 m txog 10 km. Tib -mos SFP + LR modules (1310 nm, 10 km rated). Ua ntej xaj, suav cov peev nyiaj siv hluav taws xob kho qhov muag: LR modules feem ntau muab lub zog xa tawm ntawm −8.2 dBm thiab txais rhiab heev ntawm −14.4 dBm (ib IEEE 802.3ae), muab 6.2 dB txuas pob nyiaj siv. Ntawm 0.35 dB / km rau ib zaug - hom fiber ntau ntxiv rau 0.5 dB ib khub txuas, 5 km txuas nrog plaub qhov txuas siv kwv yees li 3.75 dB - zoo hauv pob nyiaj siv. Yog tias koj qhov kev suav pom tsawg dua 1 dB ntawm cov npoo, tsis txhob txuas ntxiv nrog LR - nce mus rau ER (40 km rated) rau lub zog ntxiv ntawm lub taub hau, txawm tias koj tsis xav tau qhov kev ncua deb ntxiv.
25G server txuas kev hloov kho tshiab
SFP28 cov chaw nres nkoj ntawm cov nplooj hloov tshiab lees txais 25G SFP28 modules rau cov neeg rau zaub mov-rau- hloov cov txuas hauv qaum- nplooj ntawv architectures. SFP28 yog rov qab- tau tshaj SFP + ntawm 10G, txhais tau tias koj tuaj yeem tsiv mus ntxiv: populate SFP28 cov chaw nres nkoj nrog 10G SFP + modules hnub no thiab pauv mus rau 25G modules raws li kev hloov kho servers.
Rau tag nrho plaub qhov xwm txheej, xauj FB-LINK's tag nrho cov catalog ntawm MSA-raws li SFP, SFP+, thiab SFP28 transceivers - coded rau Cisco, Juniper, Arista, HPE, thiab lwm yam loj platforms, nrog cross-kev sib piv ntawm 14 hloov tsev neeg.
FAQ
Q: Kuv puas tuaj yeem siv qhov thib peb - tog SFP module hauv Cisco lossis Juniper hloov?
A: Yog. MSA- ua raws cov qauv ua haujlwm hauv ob lub platforms. Cisco tej zaum yuav xav tau qhov zais CLI cov lus txib kom hla kev txwv tus neeg muag khoom; Juniper feem ntau tso cai.
Q: Vim li cas kuv qhov chaw nres nkoj SFP tsis ua haujlwm tom qab tso lub module?
A: Pib nrog kev tshuaj xyuas lub cev: cov khoom sib kis kab mob ua rau muaj kev cuam tshuam ntau dua li cov khoom siv tsis raug. Tom qab ntawd txheeb xyuas wavelength pairing, ceev compatibility, thiab tus neeg muag khoom coding raws li txoj cai.
Q: Qhov txawv ntawm SFP uplink chaw nres nkoj thiab qhov chaw nres nkoj combo yog dab tsi?
A: Uplink ports txuas mus rau siab dua -tier switches ntawm qhov ceev dua. Combo ports sib koom qhov kev sib txuas lus nrog rau RJ45 jack uas nyob ib sab - tsuas yog ib qho tuaj yeem ua haujlwm ntawm ib lub sijhawm.
Q: Puas yog SFP cov chaw nres nkoj txhawb kev pib-kev sib tham?
A: SFP + (10G) thiab kev sib txuas siab dua ua haujlwm ntawm qhov nrawm nrawm thiab puv duplex. Teem cov chaw nres nkoj no rau nws pib-kev sib tham yog ib qho teeb meem kev teeb tsa uas tiv thaiv kev tsim txuas.
Q: Kuv puas tuaj yeem sau tag nrho SFP + chaw nres nkoj nrog 10GBASE-T tooj liab modules?
A: Feem ntau tsis yog. Qhov sib xyaw ua ke ntawm thermal load ntawm 48 tooj liab modules ntau tshaj li cov keyboards 'txias muaj peev xwm. Cov ntaub ntawv muag khoom pom zoo staggered chaw nres nkoj pej xeem.
Hu rau peb pab pawg engineering ntawm FB-LINK kom pib qhov kev sib tham.