2.5 and 5gbase-t technology: multi-vendor interop webinar
TRANSCRIPT
© 2017 Ethernet Alliancewww.ethernetalliance.org www.nbaset.orgwww.ethernetalliance.org
2.5GAND5GBASE-TTECHNOLOGY–MULTI-VENDORINTEROPHERETODAYWEBINAR
2016BASE-TPlugfestReportOut
AmrikBains,CiscoDavidChalupsky, IntelGeorgeZimmerman,CMEConsulting
March9,2017
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© 2017 Ethernet Alliancewww.ethernetalliance.org www.nbaset.org
Disclaimers
• Opinions expressed during this presentation are the views of the presenters, and should not be considered the views or positions of the Ethernet Alliance or NBASE-T Alliance.
• Per IEEE-SA Standards Board Bylaws, Dec 2013 • “At lectures, symposia, seminars, or educational
courses, an individual presenting information on IEEE standards shall make it clear that his or her views should be considered the personal views of that individual rather than the formal position of IEEE.”
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© 2017 Ethernet Alliancewww.ethernetalliance.org www.nbaset.org
EthernetAlliance- MissionandPrioritiesAglobalcommunityofendusers,systemvendors,componentsuppliersandacademiaØMission
• PromoteexistingandemergingIEEE802Ethernetstandards• Accelerateindustryadoption• Demonstratemulti-vendorinteroperability
Ø2017StrategicPriorities
• SupportExistingTechnologyDeployment• SupportIEEE802StandardsDevelopment• Marketing&Education
TheVoiceofEthernet
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NBASE-TAlliance- MissionandPriorities
TheworldwidenetworkofcompaniesthatbreathenewlifeintonetworkinfrastructureØMission§ Tofacilitate,encourageandexpandthewidespreaduseand
deploymentof2.5Gand5GBASE-TEthernet.
Ø 2017Priorities§ ExpandNBASE-Tproductecosystem§ Promote802.3bzstandardandNBASE-Tspecifications§ Sponsorinteroperabilityprograms§ Educatemarketaboutmultipleapplicationsofthetechnology
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AboutUNH-IOL
TheUNH-IOL isaneutral,third-partylaboratorydedicatedtotestingdatanetworkingtechnologiesthroughindustrycollaboration.
21Madbury Rd.,Ste 100,Durham,NH03824http://www.iol.unh.edu
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Today’sSpeakers
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GeorgeZimmermanPresident, CMEConsultingTechnicalChair, EthernetAllianceChiefEditor,IEEEP802.3bzTaskForceBoD,NBASE-TAlliance
DaveChalupskyPrincipalEngineer,IntelChair,IEEEP802.3bz2.5G/5GBASE-TTaskForceBoD,EthernetAllianceBoD,NBASE-TAlliance
AmrikBainsPrincipalEngineer,Cisco SystemsTechnicalWorkingGroupChair,NBASE-TAlliance
TheBASE-TFamily!!!
© 2017 Ethernet Alliancewww.ethernetalliance.org www.nbaset.org
Agenda
• What’saPlugfest?• Why2.5G/5GBASE-T:arecap• PlugfestEventParticipants• TestDescriptions• Results
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What’saPlugfest?(a.k.a.InteroperabilityEvent)
• AnimportantelementintheEthernetecosystem!– Anopen,multi-vendorenvironmenthasbeenkeytothewideadoption
ofEthernet• Goal:Forthebenefitofendusers,insurethatproductsfrom
differentcompanies,designedtothesamespecification,caninteroperate.
• Bringtogetherproductsanddevelopersfrommultiplecompaniesinaneutral,confidentialenvironment– Confidentialbecauseweareoftentestingpre-releasedproducts
• Testnewtechnology,newspecification– Theremaybesurprises…
• Testpre-releaseproduct– Findthesurprisesandfixthembeforetheproductshitthemarket
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2016BASE-TInteroperabilityEvent• Co-sponsoredbytheEthernetAllianceandtheNBASE-TAlliance• Testingvenue:Univ.ofNewHampshire’sInteroperabilityLab(UNH-IOL)• EventheldtheweekofOctober10th,2016• EventFocus:
– Newtechnology:2.5G/5GBASE-T• IEEEStd 802.3bzTM-2016ratifiedinSeptember2016
– Demonstrateinteroperabilityof2.5G/5GBASE-Tports frommultiplemanufacturers
• Mostportstestedalsosupported 10GBASE-T,allportsalsosupported 1000BASE-T– Demonstratespeednegotiationcapabilitybetweensupported rates.– DemonstratecompatibilitybetweenNBASE-TandIEEE802.3bzspecifications– Provideanopportunity toworkthekinksofoutofnewtechnologyand
products– Demonstratethatthisstuffworks!
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ParticipantOverview15participatingcompaniesrepresentingacrosssectionoftheEthernetecosystem:NIC,wirelessAP,switches,cabling, conformancetestequipment, cabletester,protocol testequipment, PHYsilicon.
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802.3Ethernetand802.11WLAN:DeploymentsToday
• Theneedsof802.11acWave2accesspointsdemandeddevelopmentofNBASE-T/802.3bz
– Mustsupport:>1Gbpsrates,installedcablingandPoE
– Rampingfast!
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Why2.5Gand5GBASE-T?
• Between2003to2014~70billionmeters1ofCat5eandCat6cablingweresold….
– In2014,1.3Billionoutlets,~90%ofinstalledbase– Enormousnetworkinfrastructureinvestment
• Existingspecificationssupport1Gb/soverthiscable,butfasterdataratesarepossible
• BASE-Tallowsincrementalupgrade
– Letsgetmorevaluefromthisinvestment!– EnabletheNextEthernetEra
10metersofcableforeveryman,woman,andchildonEarth…
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1Source:BSRIADecember2014
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Wherearewenow?• Providing 2.5Gbpsand5Gbpsoverinstalledcabling• 802.11acWave2APsshipping with>1Gbpswired
backhaul• IEEE802.3bzTM receivedfinalapprovalSeptember
2016• JointEA&NBASE-TPlugfestOctober16• Cablingguideline documentsnowavailableto
support rollouts
• Rapidtransitionfrom100/1000Mto2.5G/5GBASE-T– Combinedforecastsays25%ofswitchportswillbe
2.5G/5GBASE-T– 5millionswitchportsin2017,growingtoover
100Min2021*!
*DellOro– January2017
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FillingouttheRoadmap
NBASE-TStart
(WLAN)
MachineVision(industrial)
PoE
Homenetworking
Serviceprovider
infrastructure
1000BASE-Treplacement
EnterpriseStorage
E T H E R N E T E C O S Y S T E M
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IEEE/NBASE-TComparison
• AutomaticDownshiftcapabilitysupportedwithNBASE-T2.3– Preventslossofconnectivityinchallengingcableenvironments
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IEEE802.3bzfunctionality
AutomaticDownshift
NBASE-T2.3functionality
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IEEEandNBASE-T:CompatibilityandfunctionalitywithNBASE-T2.3• History:NBASE-T1.0released
priortostartofIEEE802.3bz.• NBASE-T2.3coverscompatibility
withbothIEEEStd 802.3bzTM -2016andNBASE-T1.1
• RecommendbuildingnewproductswithNBASE-T2.3support(notjustIEEE802.3bz)tomaintaincompatibilitywithlegacyNBASE-T1.1ports
• UpgradeNBASE-T1.1portswithnewNBASE-T2.3firmware
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NBASE-T1.1port
IEEE802.3bzport
NBASE-T2.0port
OKOK
NotOK
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TestCaseOverviewInteroperabilitytests• Linkuptest:teststhebasiccapabilityfortwodevices undertest(DUT)toestablishlink.• FrameErrorRate(FER)tests:dataframeswerepassesbetweendevicesandmonitoredforerrorstodemonstrate1E-12biterrorratiorequiredbythespecifications.
DownshiftTesting• ByinjectingacontrolledamountofnoiseontotheCat5ecablesusingtestequipment, downshift testsdemonstratethatportscantransitiontolowerdatarateswhenthenoiseexceedsthespecifications forahigherdatarate
6Around1Testing• Althoughnotarequirementofthestandard,6-around-1 testsprovide aninformativedemonstrationofaport’sabilitytooperateinthepresenceofnoise.Inthiscasenoise isinjectedontothe“victim”cablebytightlycoupling 6“aggressor”cablesaroundthevictim,andrunningactivelinks (1000BASE-T,2.5GBASE-T)ontheaggressorcableswhileFERtestsarerunonthevictim.
ConformanceTesting:• Electricaltestequipmentwasprovidedbytwodifferentequipmentvendors.Conformancetestswererunontheactiveportsusingthisequipment totesttheirconformancetothe2.5G/5GBASE-Tspecifications. Testequipment vendorsalsobenefitfromplugfestbyhavingmoreportstotestandoptimizetheirtestsuites.
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InteroperabilityTestCases13differentdevicesfrom10companies…78uniquepairingsForeveryinteroperabilitypair,upto12testswereperformed1. BasicLinkestablishment
• [email protected]• Link@IEEE5G• [email protected]• Link@NBASE-T5G
2. BasicFER*
• *8-minutetests,800-byteframes ->Verifies1e-12BER@[email protected]
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WithPanduitCategory5echannels... WithBerk-TekCategory5echannels...
● FER@5Gwith5meterlinksegment
● FER@5Gwith100meterlinksegment
● FER@5Gwith5meterlinksegment
● FER@5Gwith100meterlinksegment
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BasicLink/FERPairings– 78Combinations
DUT1 DUT2 DUT3 DUT4 DUT5 DUT6 DUT7 DUT8 DUT9 DUT10 DUT11 DUT12 DUT13
DUT1
DUT2 x
DUT3 x x
DUT4 x x x
DUT5 x x x x
DUT6 x x x D x
DUT7 x x x D x x
DUT8 x x x x x x x
DUT9 x x x x x x x x
DUT10 x x x x x x x x x x
DUT11 x x x D x x x x x D x
DUT12 x x x x x x x x x x x
DUT13 x x D x x D x x
NotAvailable/Working
x Confirmed ALLdatacollected
D MissingData
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BasicLinkResultsOverviewResultsfor591LinkUpTrials
ConfidentialtoPlugfestParticipants 20
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SpecificationUsedforAuto-Negotiation
ConfidentialtoPlugfestParticipants 22
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SpeedofLink
ConfidentialtoPlugfestParticipants 23
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Category5eLinkSegmentUsed
ConfidentialtoPlugfestParticipants 24
VendorAShort(5m)VendorALong(100m)VendorBShort (5m)VendorBLong(100m)
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FERResultsOverviewResultsover523trials
ConfidentialtoPlugfestParticipants25
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LinkSegmentUsed
VendorAShort(5m)VendorALong(100m)VendorBShort (5m)VendorBLong(100m)
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DownshiftTestSetup/Procedure
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EthernetTrafficGen+NoiseGen(AWGN)
DUT
1mPatchcords
Ø Devices are connected to tester via 1m patch cableØ All speeds are enabled on both devicesØ Link events are initiated by the tester by restarting auto-negotiationØ After link is established at the highest speed supported by DUT (10G or 5G)Ø AWGN noise is injected into the test channel while link is activeØ The noise power is increased by 1dB; recorded noise level which triggered downshift
NoiseGeneratorallowsconsistentrepeatabletestcomparedto6-a-1test
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DownshiftTest:Results• AllportsimplementingDownshiftshowedsuccess!
Ø 10G-capableports(tenDUTs)performedDownshiftfrom10G->5G->2.5G->1Gasnoiseincreasedfrom-122dBm to-108dBmwithin1dBm/Hz
Ø 5G-maxports(twoDUTs)performedDownshift from5G->2.5G->1Gasnoiseincreasedfrom-119dBm to-108dBmwithin1dBm/Hz
Ø OnlyoneDUTpresentdidnot implementdownshift feature
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DecreasingSpeed
10G
5G
2.5G1G
IncreasingNoisedBm/Hz
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Whataboutthe“6Around1”Test?
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• UseCasesØ Most2.5G/5GBASE-Tdeploymentshave
<<100mbundling:closeproximityatswitchend,thenfanouttoendpoints. Thismakes100mofbundlingaverypessimisticmodel.
• 6-around-1cablebundleconfiguration wasusedtocalculateworst-casealiencrosstalkforCat6acablesforIEEE802.310GBASE-T…makingtheterm“6around1”wellknowninthecablingindustry for10GBASE-T.
Ø Innercableisvictimof6aggressorsØ Noisedepends onwhatsignalsarein
thecables
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q IEEE802.3bzevaluatescablingaliencrosstalkofbydeterminingthebestSignal-to-NoiseRatio(SNR)thataPHYcouldachieveusingmeasurementsofthealiencrosstalkcharacteristicsofthecabling– thisiscalledAlienLimitedSNR(ALSNR)
q AlienLimitedSNR– 2.5G/5Gperformanceislimitedbycross-talkthananyothercableparameter,hencetermALSNR
q IEEE802.3bzspecifiesthelinksegmentbasedontheworstpossiblesetofaggressors,independentofcabletypeor6-a-1cablebundleconfiguration,thatmeetatestforaliennoiselevel(calledtheALSNRcriterion)
q IEEE802.3bzspecifythatthePHYprovideabiterrorratio(BER)betterthanorequalto10–12 attheMAC/PLSserviceinterface
DoesitMeetIEEE802.3bzSpecifications?
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“6Around1”TestSetupandResults
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• PlugfestTest
Ø ALSNRwascalculatedforeachsetofdisturbers,butduetolimitedtime,noattemptwasmadetoensureALSNRmetIEEE802.3bzLinkSegmentspecification
• Testsetup
Ø 6-a-1Cablebundleusedwasworstcase:full100mbundling ofCat5e.Exceeds802.3bzALSNRspecsforanyconfiguration.
Ø …butclosetothespecfor2.5Gvictimwith1Gaggressors.
● 5m+90m+5m linksegment
TrafficGeneratorwith7ports
DUT
• Testresults:Ø 2.5Gdeviceundertestwith1Gaggressorsgenerallyworkedwell,
matchingspecificationforthisconfiguration
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FuturePlugfestRecommendations
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• Replace6-a-1cabletestwithcontrollednoisesourceemulateALSNRasspecifiedinClause126.5.4.4Aliencross-talknoiserejection
• BenefitsØ RepeatableandconsistentresultsØ EasiertocreateALSNRfordifferentcombination ofvictim/aggressor
speedØ Mapsmorecloselytospecificationsandusecases
© 2017 Ethernet Alliancewww.ethernetalliance.org www.nbaset.org
ResultsDiscussionInteroperabilitytests:over1,000testcasesrun!• Linkuptest:591linktrialswith100%success.• FrameErrorRatetests:523FERtestswith99%passrate.• Interoperabilitytestcaseswereanearevensplitof
– NBASE-Tvs.IEEE802.3bzautonegotiation.– 2.5GBASE-Tvs.5GBASE-Toperation– Shortvs.long(5m/100m)cablingfromtwosuppliers
DownshiftTesting• Downshifttestingwith12devicesdemonstratingthecapabilitytooperateatthebestpossiblespeedwhennoisefactorsexceedspecificationlimits.
6Around1Testing• Demonstratesthatdevicescanoperateinthepresenceofnoiseoncableplantsexceedingthespecificationlimitsforaliencrosstalk(ALSNR).
ConformanceandCableTesting:• Testequipmentavailablefrommultiplesuppliersdemonstratesthatthetest&measurementcapabilityisinplacetoenabletheworkofcomponentandsystemdesigners,equipmentandcableinstallerstodeploy2.5GBASE-Tand5GBASE-Tproductswithconfidence.
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Summary• 2.5G/5GBASE-Tmulti-vendorinteroperabilitydemonstrated
• CompatibilitybetweenNBASE-TandIEEE802.3bzdemonstrated
• Productsarealreadyinthemarket• Manymoreindevelopment
– Weshoulddothisagain!• Widevarietyofproducttypesandtestequipmentavailable– Richecosystemdeveloping
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