200GoverAlienWavelength

MarcHelmus,GasLINEMoritzFrenzel,GlobalwaysAG

DENOG9Darmstadt,23rd November2017

MarcHelmus

• Headoftransmission@GasLINE• marc-oliver.helmus@gasline.de• @marcnetismus

MoritzFrenzel

• Teamleadactivenetworks@GlobalwaysAG• moritz.frenzel@globalways.net• @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