《利用数字相干光学 (DCO) 发展网络.pdf》由会员分享,可在线阅读,更多相关《利用数字相干光学 (DCO) 发展网络.pdf(68页珍藏版)》请在三个皮匠报告上搜索。
1、#CiscoLive#CiscoLiveEmerson Moura,Distinguished ArchitectMaurizio Gazzola,Head,Optical ArchitectureBRKOPT-2705Technical considerationsGrowing the Network with 400 Gbps Coherent Pluggable Optics 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveEnter your personal notes hereC
2、isco Webex App 3Questions?Use Cisco Webex App to chat with the speaker after the sessionFind this session in the Cisco Live Mobile AppClick“Join the Discussion”Install the Webex App or go directly to the Webex spaceEnter messages/questions in the Webex spaceHowWebex spaces will be moderated by the s
3、peaker until June 9,2023.12343https:/ 2023 Cisco and/or its affiliates.All rights reserved.Cisco PublicBRKOPT-2705Agenda 2023 Cisco and/or its affiliates.All rights reserved.Cisco PublicIntroduction400Gbps DCO Technology and StandardsInteroperability ConsiderationsManagement ConsiderationsConclusion
4、BRKOPT-27054IntroductionWhy moving to 400Gbps is so important?2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveSilicon Enabling 10 Tbps/RU SoC and multi-purpose Lowest power and footpring per bit400Gbps brings Scale,Simplicity and SustainabilityIndustry innnovations around
5、400Gbps7BRKOPT-2705Optics QSFP-DD56-best port density,excellent power/thermal profile Various reaches,Silicon Photonics and Digital Coherent Optics(DCO)Systems System scalability 400G+optimized designs Common platform for various use cases:fixed chassis,modular,centralized 2023 Cisco and/or its affi
6、liates.All rights reserved.Cisco Public#CiscoLiveSilicon Enabling 10 Tbps/RU SoC and multi-purpose Lowest power and footpring per bit400Gbps brings Scale,Simplicity and SustainabilityIndustry innnovations around 400Gbps8BRKOPT-2705Optics QSFP-DD56-best port density,excellent power/thermal profile Va
7、rious reaches,Silicon Photonics and Digital Coherent Optics(DCO)Systems System scalability 400G+optimized designs Common platform for various use cases:fixed chassis,modular,centralized 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLive400Gbps Digital Coherent OpticsBusiness
8、 Benefits vs DWDM Transponders9BRKOPT-270595%Less Power and CoolingZERONo additional rack space$Significant lower CAPEXAgilityLess:Hardware to procureOptical InterconnectsTouch points to configureUp to 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveRouted Optical Networki
9、ng10BRKOPT-2705400ZR/ZR+QSFP-DD DCOsSimplifies the network and lowers costs.OLS:Open Line System 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveIP/MPLS optimized,simplified control plane IP/MPLS optimized,simplified control plane Full services convergenceFull services con
10、vergenceTraditional MultiTraditional Multi-Layer ArchitectureLayer ArchitectureRouted Optical Networking ArchitectureRouted Optical Networking Architecture3 Management Systems,3 control planes3 Management Systems,3 control planesIP/MPLS+GMPLS+WSON/SSONIP/MPLS+GMPLS+WSON/SSONRouted Optical Networking
11、 Journey11BRKOPT-2705Transitional Architecture:Transitional Architecture:How to get there?How to get there?2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveIndependent IP and Optical networksIndependent IP and Optical networks1400G DCO Adoption400G DCO Adoption2Routed Optic
12、al NetworkingRouted Optical Networking3Start Today withStart Today withVisionVisionPastPastPhased ApproachTransitional ArchitectureTransitional ArchitectureIP/MPLS optimized,simplified control plane IP/MPLS optimized,simplified control plane Full services convergenceFull services convergenceTraditio
13、nal MultiTraditional Multi-Layer ArchitectureLayer ArchitectureRouted Optical Networking ArchitectureRouted Optical Networking Architecture3 Management Systems,3 control planes3 Management Systems,3 control planesIP/MPLS+GMPLS+WSON/SSONIP/MPLS+GMPLS+WSON/SSONRouted Optical Networking Journey12BRKOPT
14、-2705TranspondersExisting DWDM400ZR/OpenZR+DCO PluggablesHow to get there?How to get there?2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveHow does DCO technology work on existing networks?Coherent OpticsRecap 2023 Cisco and/or its affiliates.All rights reserved.Cisco Publ
15、ic#CiscoLiveWhat Is a DCO Transceiver?DCO=Digital Coherent Optic15BRKOPT-2705Typical 100G Coherenttransponder line card for 300 x300mm layoutsDiscrete Photonic Elements28nmDigital Signal ProcessorSilicon Photonics IntegrationAdvanced Packaging IntegrationPIC with Multi Chip Packaging$Uses standard40
16、0GE host port 10 xdecreasein power/bit$7nmMoores LawQSFP-DD 400G DCO 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveRemoving hardware complexity and cost with DCO16BRKOPT-2705RouterFiber JumperOpticalLine SystemSR OpticTransponder/MuxponderSR OpticFiber JumperTraditionalR
17、outerFiber JumperOpticalLine System400Gb DCORouted Optical Networking 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveDCO Applications17BRKOPT-2705Single channel10dBm Span Budget(approx.40km distance)Unamplified,Dark FiberSingle or Multi-Channel 400ZR max distance is 120km
18、(chromatic dispersion limited)Amplified,Point-to-point DWDMMulti-Channel 400G OpenZR+max distance is up to approx.1,400kmand can be downshifted to 300G,200G,and 100G to support further distances and worse OSNRInline EDFA/RAMAN AmplifiersFull featured DWDM(ROADMs,ILAs)2023 Cisco and/or its affiliates
19、.All rights reserved.Cisco Public#CiscoLiveDCO Applications18BRKOPT-2705Single channel10dB Span Budget(approx.40km distance)Unamplified,Dark FiberSingle or Multi-Channel 400ZR max distance is 120km(chromatic dispersion limited)Amplified,Point-to-point DWDMMulti-Channel 400G OpenZR+max distance is up
20、 to approx.1,400kmand can be downshifted to 300G,200G,and 100G to support further distances and worse OSNRInline EDFA/RAMAN AmplifiersFull featured DWDM(ROADMs,ILAs)400G DCOStandards 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveWhat Standards are actually covering400G Z
21、R is defined by OIF 400G ZR MSAThis defines the use case:400GE only DWDM line systems or dark fiber4x100 over CFEC is NOT standardized in OIF.It is a proprietary capability of each vendor.It is focused on multivendor interoperability and power optimizationOpen ZR+MSA:This defines the use case that i
22、s for extended performance in comparison with OIF 400ZRMulti-rate DWDM line over pluggable with Integrated DCOBut it is ONLY focused on WDM I/F interoperabilityCMIS(Common Management Interface Specification)defining host to module management communication SNIA SFF-8024_R4.9 reference by CMIS for the
23、 Application code definitionC-CMIS(extension for the Coherent)Current version 1.2BRKOPT-270520 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLive100G-400G oFEC-based interfaces assuming 75GHz channel spacing21OpenZR+MSA Release OverviewBRKOPT-2705100G-400G oFEC-based interfa
24、ces assuming 100GHz channel spacingHigher launch power configurationSupport for colored and colorless architectures400G 8-QAM modePossible future work items include 600G and 800G modes,enhanced tolerance to fiber impairments,PCS modulation,etc.Revision 1.0Revision 2.0Revision 3.0Revision 4.0 2023 Ci
25、sco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveNew standardsOpen Data Center Committee(ODCC)was co-sponsored by Alibaba,Baidu,Tencent,China Telecom,China Mobile,CAICT(the China Academy of Information and Communications Technology)and consultant unit Intelhttp:/ defined a superse
26、t of specifications respect OIF,Open ZR+and OpenROADM,aiming to close some of the aspects not covering the previous standardization 22BRKOPT-2705 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveWhat is NOT covered by the Standard?CMIS version Today most of the pluggable su
27、pport version 4.2 that is not formally published,it was an intermediate version before the 5.0 has been supported.With Bright ZRP introduction router will support CMIS 5.0.Previous realese support only 4.2Module Recognition/configuration:Routers use the Application code to understand if it is ZR or
28、ZR+.Standards define ONLY 15 application codes.While for ZR these are enough for ZR+they are not.This implies that today ZR+and complex DSP configurations are NOT standardized,and we use Acacia custom modes to support all the mode.Bright ZRP will have the same ZR+modesWorking with standard cisco exp
29、ert and forum to rectify this problemLink Flap and host side configuration.CMIS has several flexible capability but NOT all the vendors support the same features:Capability to squelch the host side when media side is in LOS/LOFCapability to have an“hold off timer”before doing squelch.BRKOPT-270523 2
30、023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveCoherent Pluggables on Third Party HostVendors are considering the support of coherent optics on third party hosts even if standards are showing some important gaps.Below we can find the most important caveats:This would requi
31、res a complete ownership by the Network operator to support qualification activities on third party hostsThis would requires Network operator to own the FW and SW change management process.It will be possible that due to some interoperability issue on FW or HW design of Host card the qualification p
32、rocess could not be successful24BRKOPT-2705 2023 Cisco and/or its affiliates.All rights reserved.Cisco PublicCisco 400Gbps PluggableDigital Coherent OpticsProducts25BRKOPT-2705400ZROpenZR+Product ID:QDD-400G-ZR-SProduct ID:QDD-400G-ZRP-SReference 2023 Cisco and/or its affiliates.All rights reserved.
33、Cisco Public#CiscoLive400G QSFP-DD 400ZR&OpenZR+Sample Cisco Implementation Specifications26BRKOPT-2705ModeModeLine Line RateRatePowerPowerBaud Baud RateRateModulation Modulation FormatFormatFECFECMin.Min.Channel Channel SpacingSpacingTX TX PowerPower(No TX Shaping)TX TX PowerPower(TX Shaping)EoLEoL
34、OSNROSNR(No TX Shaping)EoLEoLOSNROSNR(TX Shaping)RX RX SensitivitySensitivity(Optimal)Min.RX Min.RX SensitivitySensitivity(No ASE Noise)DGDDGDCompensationCompensationMax.CD Max.CD CompensationCompensationUnitUnitGbpsWattGBaudGHzdBmdBmdBdBdBmdBmpsps/nmOIF ZROIF ZR40018(Typical)20(EoL)59.816QAMCFEC75-
35、8.5(Typical)-10(EoL)N/A26N/A-12dBm-20dBm33+/-2400OpenZR+OpenZR+40021.6(Typical)23.6(EoL)60.116QAMOFEC75-8.5(Typical)-10(EoL)-11(Typical)-13(EoL)23.723.1-12dBm-21dBm60+/-520003008QAM20.819.5-15dBm-23dBm+/-100000200QPSK15.315.0-18dBm-28dBm+/-.16QPSK11.8N/A-20dBm-28dBm80+/-160000Reference:Re
36、ference:Cisco 400G DCO datasheet:http:/cs.co/9003JxKExReferenceNote:Note:Ciscos specifications are aligned with OIF 400ZR and OpenZR+specifications 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveNew!Cisco High Power(“Bright”)QSFP-DD DCO27Tunable across the C-BandUp to+1dB
37、m transmit optical powerEmbedded mini-EDFAAvailability of embedded tunable filterCompatible with vast majority of deployed Add/Drop structuresAdditional 10dB un-amplified reachRemaining specifications aligned with OpenZR+and OpenROADMCompliant to QSFP-DD Type 2A module specificationTwo different ver
38、sionsEthernet only(for Routers and Switches)Multirate Ethernet/OTN(for OpenROADM hosts)BRKOPT-2705Disclaimer:Disclaimer:Cisco Bright QSFP-DD ZR+is currently in development and will be offered on a when-and-if-available basis.This roadmap is subject to change at the sole discretion of Cisco,and Cisco
39、 will have no liability for delay in the delivery or failure to deliver any of the products or features set forth in this document.2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveBright 400ZR+QSFP-DD Field TrialsLink Cisco routersData center interconnect(Istanbul region)Tr
40、kiyeParisLyonClermont-FerrandLinking Cisco NCS 5504 RoutersAlien l on 3rdparty line system1337km1337km8 ROADMs8 ROADMsLinking Cisco 8K&NCS 5700 routers3rdparty line systemCopenhagenHamburgTuzlaEsenyurtBRKOPT-270528 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLive400G High
41、Power(Bright)QSFP-DD DCO Cisco Implementation Specifications Ethernet Variant29BRKOPT-2705ModeModeLine Line RateRateBaud Baud RateRateModulation Modulation FormatFormatFECFECMin.Min.Channel Channel SpacingSpacingMax TX Max TX PowerPowerMax RX Max RX PowerPowerRXRXOSNROSNRSensitivitySensitivityRX RX
42、SensitivitySensitivity(Optimal)RX RX SensitivitySensitivity(No ASE Noise)DGDDGDCompensationCompensationMax.CD Max.CD CompensationCompensationUnitUnitGbpsGBaudGHzdBmdBmdBdBmdBmpsps/nmEthernetEthernet40060.116QAMOFEC75+1(tunable down to-9dBm)1322.5-12dBm-21dBm60+/-520003008QAM19.5-15dBm-23dBm+/-100000
43、200QPSK14.8-18dBm-29dBm+/-.18QAM5017.2-16dBm-28dBm+/-.116QAM19.3-15dBm-25dBm+/-85000100QPSK11.5-20dBm-32dBm80+/-160000Reference:Reference:Cisco 400G High Power(Bright)400G QSFP-DD DCO datasheetReference 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLive
44、Whats next?Taking the Right Steps to Higher Data RatesBaud Rate ClassCLASS1 1CLASS2 2CLASS3 3CLASS4 430-34Gbaud60-68Gbaud120-136Gbaud240-272Gbaud300GHz50GHz50GHz50GHz150GHz150GHz75GHz75GHzChannel GridChannel Grid75GHz75GHz50GHz50GHz50GHzStandard MSA ProductsStandard MSA ProductsOIF 100GCFP2-ACOCFP2-
45、DCO400ZROpenZR+OpenROADM800LR800ZROpenROADM1600ZR TBDsEverestEverestMeruMeruGreylockGreylockAcacia MultiAcacia Multi-Haul ProductsHaul ProductsAC1200CIM 8CIM 10AC400DenaliDenaliPicoPicoJannuJannuDelphiDelphiBRKOPT-270530 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLive800G
46、 MSA Pluggables Powered by DelphiModule Portfolio800ZR in QSFP-DD/OSFP800ZR+in QSFP-DD/OSFP/CFP2400G Long-haul in QSFP-DD and CFP2Delphi:Lower power DSP in 4nm CMOS:130G+ADC/DAC&56/112G Serdes:Proven in Jannu130GB Optical front-endCo-design Si-PIC/DRV/TIA:Proven in CIM 8OE-MCM packaging:High volume
47、production ready:150K+shipped in 400ZR/ZR+High performance proven in CIM 8 2023 Cisco and/or its affiliates.All rights reserved.Cisco Confidential17800G MSA Pluggables Powered by DelphiModule Portfolio800ZR in QSFP-DD/OSFP800ZR+in QSFP-DD/OSFP/CFP2400G Long-haul in QSFP-DD and CFP2Delphi:Low power D
48、SP in 4nm CMOS130G+ADC/DAC&56G/112G Serdes:Proven in Jannu130GB Optical front endCo-design Si-PIC/DRV/TIA:Proven in CIM 8OE-MCM packagingHigh volume production ready:150K+shipped in 400ZR/ZR+High performance proven in CIM 8AvailabilitySamples:4Q 23GA:1H 24BRKOPT-270531 2023 Cisco and/or its affiliat
49、es.All rights reserved.Cisco Public#CiscoLive400G and 800G MSA Pluggables Coherent Modules120+Gbaud Class 3Serdes:112G PAM4 x8ZR and FlexO-xe origination,FlexO streamingBright variant(optional)Build-in OA and TOF1dBm Tx output 2023 Cisco and/or its affiliates.All rights reserved.Cisco Confidential18
50、800G MSA Pluggable Coherent Modules120+Gbaud Class 3Serdes:112G PAM4 x8ZR and FlexO-xe origination,FlexO streamingBright variant(optional)Build-in OA and TOF1dBm Tx outputQSFP-DD800 Type 2BOSFP-800CFP2Client Interface:100GbE:100GAUI-1/2200GbE:200GAUI-2/4400GbE:400GAUI-4/8800GbE:800GAUI-8Line interfa
51、ce:C-band Tunable800ZR800G PCS(131Gbaud)600G PCS(118&131GBaud)800G LR1/ER1/ZR1 Fixed Delphi800GLR/ZR/ZR+Client Interface:All above EthernetOTN:FOIC 1.1/2Line interface:C-band Tunable800G PCS(131Gbaud)600G PCS(131GBaud)400G PCS(131GBaud)Serdes:56G PAM4 x8 ZR framing,FlexO streaming Bright day 1Build-
52、in OA and TOF1dBm Tx output 2023 Cisco and/or its affiliates.All rights reserved.Cisco Confidential19Long Haul 400G MSA Pluggable Coherent ModulesSerdes:56G PAM4 x8ZR framing,FlexO streamingBright day 1 Build-in OA and TOF1dBm Tx outputQSFP-DD Type 2ACFP2Client Interface:100GbE:100GAUI-2200GbE:400GA
53、UI-4400GbE:800GAUI-8OTN:FOIC-1.2(CFP2)Line interface(C-band Tunable)400G QPSK400G PCS(96GBaud)for 112.5GHz spacing400G PCS(84GBaud)for 100GHz spacing400G PCS(69GBaud)for 75GHz spacingOpenZR+:400G,200G,100GDelphi800GLR/ZR/ZR+Long Haul 400G 800G MSA Pluggables BRKOPT-270532Interoperability Scenarios 2
54、023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLive34What interoperability are we talking about?BRKOPT-2705 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLive35What interoperability are we talking about?BRKOPT-2705CiscoFocus of this discussion 2023 Cis
55、co and/or its affiliates.All rights reserved.Cisco Public#CiscoLive400G DCO pluggables-Key considerations for interoperability with existing networks36BRKOPT-2705Router/SwitchCompatibility1Performance3Management and Automation4DWDM NetworkCompatibility2 2023 Cisco and/or its affiliates.All rights re
56、served.Cisco Public#CiscoLiveRouter or Switch CompatibilityPluggable form factor:QSFP-DD56(standard)Software:DCO requires specific software featuresPower profile:400G DCO works within the QSFP-DD power envelopeThermal profile:Varies by platform and defines on which ports DCO pluggables can be deploy
57、ed37BRKOPT-2705Key ConsiderationsWhich and how many ports can host the pluggable 400G DCO 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLive38400G DCO and ROADM CompatibilityBRKOPT-2705Anatomy of 400G ZR/ZR+Optical SignalSafety margins are required on top of these specificat
58、ions.Ex.:2dB OSNR marginSystem level designs use statistical methods(2 sigma,3 sigma)to account for uncertainties60 G60 GB Baud Transmitteraud TransmitterReceiver 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLive400G DCO and ROADM Compatibility (Contd)39BRKOPT-2705Minimum R
59、OADM or DWDM Mux/Demux Requirements1)Optical power considerations for first generation 400Gbps DCO following OIF 400ZR and OpenZR+standard specifications50GHz fixed grid ROADM implementations are incompatible with 400Gbps 400ZR/OpenZR+75GHz Channel Bandwidth-10dBmInput Power1ROADM(fixed or flex grid
60、)Or Terminals 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveA.Power equalization via VoAsB.DCO Power amplification via dedicated unit.Ex.NCS2K-6AD-DD-CFS unitROADM compatibility examplesMultiple solutions exist to support standard 400G DCO wavelengths40BRKOPT-2705C.DCO P
61、ower amplification via 3rd party components.D.DCO Power amplification via dedicated amplifier in interleaved channels.This is not an exhaustive list.Point to point DWDM systems are simpler and,in some cases,wont require changes.2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoL
62、ive400G High Power(Bright)DCO and ROADMsSimpler solution with less or no equalization of DCO wavelengths41BRKOPT-2705 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLive400G High Power(Bright)DCO and ROADMsSimpler solution with less or no equalization of DCO wavelengths42BRKO
63、PT-2705ConsiderationsConsiderationsPower Add/Drop setpoint driven by inner insertion loss(IL)of the ROADM node architecture.Typical setpoint is in range-14 to-17dB Power Add/Drop setpoint optimized to minimize noise generation of the EDFA-TX with standard Gain range 15-17dBCCO-FS solutions introduce
64、 even higher losses and stringent requirements on OSNR-TX of DWDM interfacesHigh TX-Power of local interface is not a significant factor on ROADM use casesHigh OSNR-TX of local interface improves performances(mainly)in CCO designs 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#Cis
65、coLiveH.DCO Mux/Demux via dedicated hardware in interleaved channels-from the same DWDM vendor.400G High Power(Bright)DCO and ROADMsSimpler solution with less or no equalization of DCO wavelengths43BRKOPT-2705G.DCO Mux/Demux via external hardware.Unlikely.E.Power equalization via VoAs.Still required
66、 due to add/drop vs pass-through channels.F.DCO Power amplification via dedicated unit.Not really needed!Again,this is not an exhaustive list.Key take-away:Bright ZR+allows for simpler interoperability with existing DWDM.2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveHow
67、to define performance for DWDM channels44BRKOPT-2705Performance=ReachMaximum fiber distance,number of amplifier nodes and ability to mitigatephysical impairments presented by the fiber and the DWDM line systemFunction of the transmission rate(symbol rate,or baud rate),modulation technics and algorit
68、hms implemented in digital processors to counter impairments 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveDCO Performance45BRKOPT-2705Sources:1-Typical x GBaud 400Gbps transponder implementation(Back-to-back performance)2 OIF 400ZR Technical Specification3 MSA OpenZR+Te
69、chnical Specification version 2.0(July,2022)ParameterParameterUnitUnit400G 400G Transponder Transponder 1 1OIF OIF 2 2400ZR400ZRMSAMSA3 3400G 400G OpenZROpenZR+Ciscos EnhancedCiscos EnhancedOpenZROpenZR+Ciscos High Tx Ciscos High Tx Power ZR+Power ZR+Optical ModulationOptical ModulationPM-16QAMPM-16
70、QAMPM-16QAMPM-16QAMPM-16QAMBaud rateBaud rateGBaud46.3 to 7259.8460.160.160.1(Eth)63.1(OTN)Transmit PowerTransmit PowerdBm+3 to-10 dBm-8.5 to-10 dBm-6 to-10 dBm-6 to-10 dBm-9 to+1 dBmReceiver sensitivityReceiver sensitivitydBm-17 dBm-20 dBm-12 dBm-12 dBm-12 dBmReceiver OSNR Receiver OSNR sensitivity
71、(0.1nm sensitivity(0.1nm resolution)resolution)dB22262423.122.5Max CD ToleranceMax CD Toleranceps/nm150,0002,40020,00052,000048,000-52,000DGD MaxDGD Maxps6433506060All things equal,DCO ONSR sensitivity can be as small as 0.5-1dB less than a transponderFor Routed Optical Networking designs,we aim at
72、shortening the distances between routers and the 0.5 to 1 dB OSNR difference between transponders and ZR+DCO pluggables is small enough to work with many ROADM infrastructures without changes.400G DCO provides excellent performance and supports a wide range of use cases.2023 Cisco and/or its affilia
73、tes.All rights reserved.Cisco Public#CiscoLiveClassic EMS/NMS paradigms are limited by proprietary and closed systems46BRKOPT-2705Hard to evolve and to create multivendor solutions 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveHow to manage and configure DCO transceivers
74、without CLI?More configuration knobs and data to monitorAPIs to integrate with required data visualization toolsEnd goal is automation,i.e.must be friendly for machine-to-machine communicationEmbrace open/standard management frameworks47BRKOPT-2705 2023 Cisco and/or its affiliates.All rights reserve
75、d.Cisco Public#CiscoLive48400Gbps Pluggable DCOs configuration parametersBRKOPT-2705400ZR400ZROpenZR+(Cisco example)OpenZR+(Cisco example)Client Speed1x400,4x1001x400,4x100,3x100,2x100,1x100Trunk Speed400G400G,300G,200G,1x100FrequencyC-Band,196.1 To 191.3 THzC-Band,196.1 To 191.3 THzFECcFECoFEC,cFEC
76、Modulation16QAM16QAM,8QAM,QPSKDAC-Rate1x11x1.25(oFEC),1x1(cFEC)Chromatic Dispersion(CD)-2400 to+ to+160000Transmitted(Tx)PowerBased on the module capabilityBased on the module capabilityReference 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLive49DCO performance
77、management(PM)parametersBRKOPT-2705PM ParametersPM ParametersDescriptionDescriptionCDChromatic dispersionDGDDifferential group delayLBCLaser bias current in mAFREQ-OFFLow signal frequency offset in MhzOPROptical power RX in uW or dbmOPTOptical power TX in uW or dbmOSNROptical signal-to-noise ratio i
78、n dBPCRPolarization change ratePDLPolarization dependent lossRX-SIGReceiving signal power uW or dbmSNRSignal-to-noise ratioSOPMDSecond order polarization mode dispersionPM ParametersPM ParametersDescriptionDescriptionQQ factorQ-marginQ marginEC-BITSError corrected bitsPostFEC BERPost forward error c
79、orrection bit error ratePreFEC BERPre forward error correction bit error rateUC-WORDSUncorrected wordsOptics PM Coherent DSP PM ReferencePluggable DCO transceivers provide detailed visibility of optical transport performance and fiber quality directly to the router(or host).2023 Cisco and/or its aff
80、iliates.All rights reserved.Cisco Public#CiscoLiveYANG language,NETCONF and RESTCONF protocolsConsensus based data models,hackatons,catalogAbstraction and Control of Traffic Engineered Networks framework(ACTN see next slides)50Open management and automation initiativesBRKOPT-2705Common data models(c
81、overs DCO pluggables)gRPC management protocolSubscription based streaming telemetryVendor neutral testing and compliance Over 30 companiesWebscales and CSPsYANG models for disaggregated DWDM systems(covers DCO pluggables),RPCs and device templatesController based archtiecture(see next slides)MANTRA
82、subgroupAims to build an end-to-end reference network architecture based on Open Optical Networks(OON)Enabling“new generation”IPoDWDM with DCO 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveYANG language,NETCONF and RESTCONF protocolsConsensus based data models,hackatons,
83、catalogAbstraction and Control of Traffic Engineered Networks framework(ACTN see next slides)51Open management and automation initiativesBRKOPT-2705Common data models(covers DCO pluggables)gRPC management protocolSubscription based streaming telemetryVendor neutral testing and compliance Over 30 com
84、paniesWebscales and CSPsYANG models for disaggregated DWDM systems(covers DCO pluggables),RPCs and device templatesController based archtiecture(see next slides)MANTRA subgroupAims to build an end-to-end reference network architecture based on Open Optical Networks(OON)Enabling“new generation”IPoDWD
85、M with DCO 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveOpenConfig DCO model logical view52BRKOPT-2705 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLive53400G DCO Provisioning using configuration modesBRKOPT-2705DCO OptionDCO OptionOperational
86、ModeOperational ModeLine RateLine RateFEC TypeFEC TypeModulationModulationBaud RateBaud RatePulse ShapingPulse Shaping400ZR50035003400cFEC16QAM59.84No400G OpenZR+50045004400cFEC16QAM59.84No50055005400oFEC16QAM60.14Yes50065006400oFEC16QAM60.14No50075007300oFEC8QAM60.14Yes50085008300oFEC8QAM60.14No500
87、95009200oFECQPSK60.14Yes50105010200oFECQPSK60.14No50115011200oFEC8QAM40.10Yes50125012200oFEC16QAM30.08Yes50135013100oFECQPSK30.08NoSingle integer value 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveModernizing Management and Automation54BRKOPT-2705Goal:open architectures
88、,APIs and data models 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveOpen ROADM Controller Architecture55BRKOPT-2705Key points:Key points:Provides data models for a disaggregated DWDM networkController based SDN architecturePluggable DCO based architectureExpects pluggabl
89、e DCOs to be hosted in packet nodesPluggable and host connected to different controllers 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveSNMP,CORBA,ProprietaryConsiderations for integrating DCO pluggablesinto existing management environments56BRKOPT-2705IP LayerManagementT
90、ransport Layer ManagementSNMP,Syslog,Streaming Telemetry,CLIUpper Layer Management/Controller(NetCool,Moog AIOps,Vitria,Cisco HCO,etc)Transport NetworkOperatorIP NetworkOperator3 31 12 21 1HardestHardest to do it Requires transport vendor collaboration for integration(e.g.via SNMP)2 2Also very hardh
91、ard to do.Requires transport vendor collaboration for integration(e.g.via RESTConf,SNMP NBI)3 3Easier and commonly deployedEasier and commonly deployed.Depends less on transport vendor collaboration for integration(e.g.via RESTConf,SNMP NBI)2023 Cisco and/or its affiliates.All rights reserved.Cisco
92、Public#CiscoLiveSummary-DCO management and automationExcellent opportunity to depart from closed,proprietary management systemsDCO management and automation perfectly aligned with industry push towards open systems and SDN architecturesData models available from multiple industry consortia supportin
93、g different use cases.Ex:Open ConfigOpen ROADMVendor solutions and open-source tools are available to manage DCO enabled networks via streaming telemetry57BRKOPT-2705Conclusion 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveKey Take Aways and Call to Action400Gbps Digital
94、 Coherent Optics is set to disrupt the optical industry given:Cost/bit,power and footprint advantagesExcellent performanceSupporting industry standards for form-factor and optical specifications400G DCO is interoperable with existing DWDM leveraging multiple solutions for hardware and software integ
95、ration,including managementKnowledge is key to defined the right engineering solution.Call to action:59BRKOPT-2705Get familiar with Digital Coherent Optics pluggables.As interface speeds continue to get faster,eventually DCO will be required alsmot everywhere in your network.2023 Cisco and/or its af
96、filiates.All rights reserved.Cisco Public#CiscoLiveFill out your session surveys!Attendees who fill out a minimum of four session surveys and the overall event survey will get Cisco Live-branded socks(while supplies last)!60BRKOPT-2705These points help you get on the leaderboard and increase your ch
97、ances of winning daily and grand prizesAttendees will also earn 100 points in theCisco Live Challenge for every survey completed.2023 Cisco and/or its affiliates.All rights reserved.Cisco PublicContinue your educationVisit the Cisco Showcase for related demosBook your one-on-oneMeet the Engineer mee
98、tingAttend the interactive education with DevNet,Capture the Flag,and Walk-in LabsVisit the On-Demand Library for more sessions at www.CiscoL you#CiscoLive 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLive63Gamify your Cisco Live experience!Get points Get points for attendi
99、ng this session!for attending this session!Open the Cisco Events App.Click on Cisco Live Challenge in the side menu.Click on View Your Badges at the top.Click the+at the bottom of the screen and scan the QR code:How:123463 2023 Cisco and/or its affiliates.All rights reserved.Cisco PublicBRKOPT-2705#
100、CiscoLiveReferences 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLive66White PaperBRKOPT-2705Link:http:/cs.co/9008z1LWo 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveRelated Press Releases(with links)67BRKOPT-2705Zain Upgrades with CiscoTech Mah
101、indra and Cisco Collaborate to Drive 5G Modernization with Routed Optical NetworkingLink Net Begins Transformation to Cisco Routed Optical NetworkingDatagroup Takes Internet Speeds to New Heights Across Ukraine with Cisco Routed Optical NetworkingEarthlink Deploys Cisco 400G DCO Optics in EMEARRakut
102、en Mobile Advances Its Network for 5G and IoT Services with Cisco Routed Optical NetworkingColt Takes Network Innovation to New Heights with a 400G-Capable Routed Optical Networking Cisco Redesigns Internet Infrastructure to Support a More Inclusive FutureWindstream Wholesale Sets 400G ZR+Record wit
103、h Acacia Coherent Pluggable Module Telia Carrier Embraces Coherent Pluggables using Acacias OpenZR+Modules and Cisco RoutersWebSprix to Deploy Cisco Routed Optical Networking Solution with Cisco 8000 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveC Public Collateral(with links)68BRKOPT-2705Routed Optical Networking Leadership Report 650Group reportIDC Info Brief on Routed Optical NetworkingACG TCO-The Economic Benefits of IP Transport at 400GExecutive Brief on Routed Optical Networking Solutions for IP Optimizing Optical Transport White Paper