200G over Alien Wavelength -...
Transcript of 200G over Alien Wavelength -...
200GoverAlienWavelength
MarcHelmus,GasLINEMoritzFrenzel,GlobalwaysAG
DENOG9Darmstadt,23rd November2017
MarcHelmus
• Headoftransmission@GasLINE• [email protected]• @marcnetismus
MoritzFrenzel
• Teamleadactivenetworks@GlobalwaysAG• [email protected]• @momorientes
Disclaimer
AllexperiencessharedarefromaProofofConcept.NeitherGasLINEnorGlobalwaysarecurrentlyrunninga200GAlienWavelengthinproduction.
Thisdoesn’timplythatwe’renotgoingto!
• SpecifiedwithinITU.G698.2• Forupto10GBit/s• For>=50GHzChannelSpacing
• AsingleChannelInterfacetoan(existing)amplifiedDWDM-Network
AlienWavelengthakaBlackLink
TheNetwork,akathecarrierMarc,GasLINE
TheSignal,akathecustomerMoritz,GlobalwaysAG
Motivation- Network
Motivation- Network
• GasLINEisoperatinganationalOTN-Backboneforcustomers• AlienWaveisasolutionbetweenDarkFiberandmanagedbandwidthintheOTN(OTU-X)
Vendorsopinions
• Vendorssharedifferentopinions• SellinganyDWDM-Hardwareexcepttranspondersvs.sellingnothing• „Stopthatproject“:
The RND sent me the same document which I sent to you yesterday. So I think the risks and challenges have been described clearly in this document.
I checked the OHV´s alien wavelength solution with RND. We think they didn’t resolve the issue about monitoring actually, they just supplied some visible path in the NMS.
In my opinion, the market share of the OHV is very small, interconnecting with other vendors in most network is unavoidable for them. So they declare to support alien wavelength to break through the market.
About the license, I confirmed with RND, there is no new function or convenience after you purchase the license. So I suggest don’t purchase the license and stop alien wavelength.
Motivation- Signal
Motivation
• GlobalwaysisbuildingandoperatingDCsalloverGermany• Customersdemand10/100GBit/sLayer1DCI• Operatingadedicatedfiberbackboneisexpensiveandnotourcore-business• 1x100GServiceischeaperthan10x10GServices• Thereforeitwouldonlymakesensetobuy1x100GandaTD-Multiplexer• Thiswouldjustaddcostsandaddtothecomplexity
ProofofConcept
TheNetwork• 280km• RTD:3.17ms(incl.DCM)• OSNRFRA:20.8dB• OSNRSTR:21.0dB• Path:• Leinfelden(ROADM)• Karlsruhe(FOADM)• Gernsheim(FOADM)• FrankfurtKleyerstr.(ROADM)• FrankfurtHanauerLandstr.(ROADM)
• LocalLooptoGlobalways
TheSignal
• 200GBit/sOTU4C-2• QAM16->max.OSNR~20dB
• ADVACloudConnectwithQuadFlexLinecard• ECIAppollonwithTM400-ENLinecard
• PreAmpsandBoosterstoaccountforlocalLoops
10GNRZvs200GatQAM16
POCwithECI
POCwithADVA
• FirstTestswithECIonlyhadaBoosterandnoPreAmp• 200GLinkcameup,butwasn’tstableduetouncorrectablebit-errors• 100GwithDQPSKdidworkreliably• Wewillcomebackfor200G
• WetookourfindingsfromtheECIPOCandappliedthemtoADVA• Andweregreetedwithastablelink
Results
Weevendidsomescience!
Analyzingtheplanning,commercialandoperationalaspectsofanalienwavelengthBachelorThesisofDavidMartin-PerezincooperationwithGasLINE
Soisthissomethingnew?
NO
https://www.advaoptical.com/en/newsroom/press-releases/2017/20170928-telefonica-germany-uses-adva-fsp-3000-cloudconnect-in-200g-joint-trialhttps://www.sunet.se/blogg/new-toys-200g-dwdm-in-juniper-qfx10000/
SLA
• Theinterestingpartisthatthenetworkisalientothecustomerandthesignalisalientothevendor• InordertooperateanAlienWavelengthcustomerandvendorneedtoagreeonaSLAdescribingtheDWDM• Thisshouldatleastinclude:• MaximumOSNR• MaximumRX-PowerattheNetwork• MinimumTX-PowerfromtheNetwork• Restorationtimeonboth sides
Extractfromservicedescription
• ThepassivetransferunitprovidedbyGasLINEisequippedasstandardwithaninterfaceasperthewavelengthaccordingtoITU-TG694.1andaconnectortype(LC/PC)tobeagreedwiththecustomer.Atransferisonlypossibleassinglemode.• ToimplementanOptiNETConnectAlienWaveconnection,GasLINEwillspecifytheparametersfor:• wavelength,• channelspacing/channelbandwidth,and• transmissionlevel.
• TheparameterswillbecommunicatedbyGasLINEduringtheplanningphaseandagreedwiththecustomerinthetechnicaldatasheet.Thecustomerwillensurethattheagreedparametersaremet.
Atleast,wehaveachancetopermanetelymonitortheentirespectrum
SpecialThanksADVA– AndreasReinert,OliverOtto,OliverZellin
ECI– UlrichHildebrand,RüdigerZanderOurTeams– Michael(GL),Lars(GL)andJoachim(GW)
Nextsteps
• AnotherrunningPOCinprogresswithPanDacomDirectbetweenFrankfurtandMunich(OTU4without3R,eQPSK),resultstobereportedonrequest• Developinganpower-limitereitherasaneVOAorapreinstalledamplifierwithpower-locking
•34C3
Questions?
ThankYou!
BackupSlides
SecurityConsiderations
Noseriouscarrierwouldprovidethisserviceifhe’saimingforastablenetwork