Download - 4-Overview of PON Technologies and System Architectures ... of PON Technologies an… · FTTP Technology Overview GPON (ITU-T G.984) ... 29 September 2017 Overview of PON Technologies

OverviewofPONTechnologiesandSystemArchitecturesPresenter: StephenKraimanSeptembe 2017

Author:MichaelJ.EmmendorferSeptember26,2017

Copyright2015– ARRISEnterprises,Inc.Allrightsreserved.

Agenda

• OverviewofPONStandards

• OverviewofEPON/10GEPON

• OverviewofDOCSISProvisioningofEPON(DPoE)

• CentralizedAccessArchitectureforPON andDistributedAccessArchitectureforPON

• OverviewofPurposeBuiltOLTSystemsandSDN/NFVSystemsforPON

29September2017 OverviewofPONTechnologiesandSystemArchitecturesforSCTE 2


OverviewofPONStandardsHigh-Level


FTTPTechnologyOverview

GPON(ITU-TG.984)• 2.488Gbit/s downand1.244Gbit/supstream

XG-PON1(ITU-TG.987)• NotbackwardcompatiblewithGPON• WDMCoexistence(parallelnetworks)• 10Gbit/sdownand2.4Gbit/supstream

XGS-PON(ITUG.9807.1)• XGS-PON(10/10)

NG-PON2(ITU-TG.989)• Notbackwardcompatible(GPON,XGS,orXG-PON1)• 2.4Gx2.4G,10Gx2.4G,10Gx10Gbit/s• Timeandwavelengthdivisionmultiplexedpassiveopticalnetwork

(TWDM-PON)• Definesuseof4or8wavelengths

RadioFrequencyoverGlass(RFoG)SCTE1742010• RFoGisamediaconversionPONtechnology• DOCSISistheDataTechnology• Supportsexistingcablepracticesandsystems• CoexistswithData/IPPONtechnologies(e.g.EPON/GPON)

IEEEPON(SharedMediaStandards)

EPON(IEEE802.3ah)• 1Gbit/sSymmetrical

10G-EPON(IEEE802.3av)• DefineBackwardCompatibilitywithEPON• 1Gbit/sSymmetrical• 10Gbit/sdownand1Gbit/supstream• 10Gbit/sSymmetrical

100G-EPON(IEEE802.3ca)• 25G,50Gand100GEPON• Standardisbeingdefined

IEEEPoint-to-PointStandards• 1Gbit/sOpticalEthernet(IEEE802.3z)• 10Gbit/sOpticalEthernet(IEEE802.3ae)• 40Gbit/sOpticalEthernet(IEEE802.3ba)• ScalingtoolsCWDM,DWDM,andAWG

29September2017 OverviewofPONTechnologiesandSystemArchitecturesforSCTE 4Source:“ComparingIEEEEPON&FSAN/ITU-TGPONFamilyofTechnologies“,MichaelJ.Emmendorfer,SCTE-ISBEWorkshop,September2014


PONStandardWavelengths

GPON 1G-EPON XGPON1 10G/1G-EPON 10/10GEPON NG-PON2

Spec ITU-TG.984 IEEE802.3bk-2013 ITU-TG.987 IEEE802.3bk-2013 IEEE802.3bk-2013 ITU-TG.989 Units

PONRate(Gbps)

2.488/1.244 1.25/1.25 10/2.5 10/1.25 10/10 4X10/10 Gbps

DS WL 1480-1500 1480-1500 1575-1580 1575-1580 1575-1580 1524-1544 nm

USWL 1310±10 1310±50 1260-1280 1310±50 1270±10 1596-1602 nm

29September2017 5OverviewofPONTechnologiesandSystemArchitecturesforSCTE

EPON:IEEE802.3ah1310nm±50isthestandardhowever,MSOsoftenselecttheGPON1310nm±10Narrowwavelengthbandoptics(10G/1Gupstreammayusenarrowbandopticsaswell)

GPONUpstreamWavelengthEvolution:G.984.21310nm±50Regularwavelengthbandoption,G.984.51310nm±20Reducedwavelengthbandoption,G.984.51310nm±10Narrowwavelengthbandoption


Overview of EPON / 10G EPONHigh-Level


PON Acronyms and Meaning

Term MeaningODN Optical Distribution Network, referring to the out side plant OSP. Items include fiber and splitters. The

ODN is traditional all passive, thus no powered equipment in this network segment.

OLT Optical Line Terminal; located at the HE/CO. This network element controls the Downstream and Upstream signals. The Downstream are broadcast to each premises sharing a fiber. Upstream signals are combined using a multiple access protocol, invariably time division multiple access (TDMA). The OLTs "range" the ONUs in order to provide time slot assignments for upstream communication. Encryption is used to prevent eavesdropping.The OLT manages traffic to ensure bandwidth amounts and priority for specified services. This is like a CMTS in the cable network but terminates and manages optical connections end to end.

ONU Optical Network Units; located at the CPE (term associated with EPON or the IEEE version of PON). This is like a Cable Modem or EMTA in the cable network but terminates an optical connections at the home/business/MDU.

ONT Optical Network Terminals; located at the CPE (term associated with APON, BPON, GPON and is based on the ITU-T version of PON)

729September2017 OverviewofPONTechnologiesandSystemArchitecturesforSCTE


DefinitionofPON

• Apassiveopticalnetwork(PON)isapoint-to-multipoint,fibertothepremisesnetworkarchitectureinwhichunpoweredopticalsplittersareusedtoenableasingleopticalfibertoservemultiplepremises,typically32-128.

• APONconsistsofanOpticalLineTerminal(OLT)attheserviceprovider'scentralofficeorheadendandOpticalNetworkUnits(ONUs)areplacedatenduserslocations.

• APONconfigurationreducestheamountoffiberfromtheCO/HEtotheenduserscomparedwithpoint-to-pointarchitectures.

• Downstreamsignalsarebroadcasttoeachpremisessharingafiber.

• Upstreamsignalsarecombinedusingamultipleaccessprotocol,invariablytimedivisionmultipleaccess(TDMA).

• TheOLTs"range"theONUsinordertoprovidetimeslotassignmentsforupstreamcommunication.

• TodayPONpoint-to-multi-pointfibertechnologysupportsspeedsfrom1Gbpsto10Gbps

• Distancefromthefacilitytotheenduserswhereoftenupto20km,howevertodaywithPONextendersandRemoteOLTsdistancefromthefacilitytotheendusersaremuchfurther(80kmorevenmoreispossible)thismeanactivenetworkelementsareintheopticaldistributionnetwork(ODN)makingPONnotexactlypassive.


Source:WikipediaandtheAuthorofthispresentation


Attributes of EPON

• Shared media technology (many users share the network)

• Subscribers sharing the same PON port could be up to 128 ONUs but often fewer (the number of ONU per PON port is typcially optical budget limited)

• EPON bandwidth may range for 1, 2, 10 Gbps Symmetrical

• Time slots are used dynamically to allocate bandwidth to subscribers

• Encryption is used to prevent eavesdropping (AES)

• Supports Voice, Video, and Data Services


Copyright2015– ARRISEnterprises,Inc.Allrightsreserved. 10

1Gx1G “or” 2G DS x 1G US ONUsChoice for New Install

10G / 1G EPON ONUCustomer upgrades and/or New Installs

10G / 10G EPON ONUCustomer upgrades and/or New Installs

For the <1% Take Rate

1Gx1G “or”2G DS x 1G US ONUs

Existing Deployment?

MDUIEEE EPON does not strand investment in Customer Premise Equipment nor force customers to purchase 10G ONUs when

served by a 10G OLT

1OLTPortEnabling1G&10GDownstream&Sharing1G&10GUpstreamfor3TypesofONUs

DownstreamDual-rateWDM1GDS1490nm±10“and”10GDS1577.5±2.5

UpstreamDual-rateTDMA1GUS1310nm±50(wideband)or1GUS1310nm±10(narrowband)and10GUS1270nm±10singleSERDES

Single Port

1490nm

1577nm

1310nm

1270nm

10G-EPONOLT

IEEEStd802.3av-2009AMENDMENTTOIEEEStd802.3-2008:CSMA/CD,Page63Section75.6

10GEPONOLTSystem

29September2017 OverviewofPONTechnologiesandSystemArchitecturesforSCTESource:“ComparingIEEEEPON&FSAN/ITU-TGPONFamilyofTechnologies“,MichaelJ.Emmendorfer,SCTE-ISBEWorkshop,September2014


EPONDownstream

• TheOLTBroadcaststhedatafromitstransmitter• EachONUMACfiltersitsowntrafficbasedonLLIDforprocessing



EPONUpstream

• TheOLTmakessureONUsdonottransmitatthesametimetoavoidcollisionsattheOLTopticalreceiver• ToavoidcollisionstheOLTallocatesTimeSlotsknownasGATESorGrantstotheONU• WhentheONUwouldliketotransmitdataarequestforbandwidth(timeslots)aresenttotheOLTthisisknownasaREPORT



EPON Terms

• MPCP:MultipointControlProtocol– MACControlProtocolthatallowstheOLTtodeterminethetransmissionwindowsofONUsinitsshareddomain.BasedinlargepartonDOCSIS

• LLID:LogicalLinkIdentifiers– ThisisaformofmarkingtheetherframesacrossthesharedPONtoaspecificONU(CPE)– TheremaybemultipleLLIDassignedtoeachONU– ThedeterminationoftheuseofLLIDsmaybeassigntotypeofservice,e.g.data,voice,video.

• PacketClassification:– Classificationisperformedateachingresspoint.Specificfieldsintheframessuchas802.1Q,DiffServ(TOS),Layer2/3Address,orLayer4portscanbeusedtomaptrafficintoLinkLayerIDsandServiceLevelAgreements.



BandwidthAllocationModes

• DynamicBandwidthAllocation(DBA)Scheduler– DBAmayalsobereferredtoasDynamicSolicitedMode– ONUsaskforbandwidthandtheOLTissuesgrantsbasedontheneedsoftheONUsneedingbandwidth– IfONUsarenotactivelytransmittingtheyareperiodicallypolled– IfthereisnocontentionforbandwidthONUsmayusethePONlinktothemaximumSLA– IfthereisnodatatotransmitthePONtimeslotarenotused

• TimeDivisionMultiplexing(TDM)Scheduler(supportedbysomesystems)– Grantsareissuedatafixedinterval,regardlessofONUsneedtotransmitdata.– TDMmodeistimerbased,meaningthatbandwidthisallocatedwhenaprovisionedtimerexpires.– ThismaybeusedinhighlycongestedlinkstoguaranteehighprioritytrafficiscarriedthroughthePON

(MostEPONdeploymentsworldwideuseaDBAschedulerordynamicsolicitedmode)29September2017 OverviewofPONTechnologiesandSystemArchitecturesforSCTE 14


DBAREPORTandGATEMessages

• DBAusesREPORTandGATEMessagestorequestandgrantdatafortheONUtotransmitupstreamtoavoidcollisionsandschedulesbandwidthacrossthesharedmedia

• DBA:REPORT(BandwidthRequests)– ONUreportsitsdatatransmissionneedsinitstransmitqueue– ONUisperiodicallypolledinordertobeabletosendaREPORTorRequests– ONUsmayaddaREPORTattheendofeachtransmission

• DBA:GATE(BandwidthGrants)– OLTGrantstransmitopportunitiescalledGATEStoONU– OnceGATE/grantissenttheOLTexpectsaburstfromthisONUtobereceivedattheOLTataspecifictimecalledaGrantWindow



EPON and DOCSIS Comparison

• EPON LLID are very similar to DOCSIS Service Flows– In fact DPoE adds DOCSIS Service Flow Concepts to EPON OLTs targeting the Cable Market– There may be up to 16 bi-directional (downstream and upstream) LLIDs / service flows per ONU– Each service flow can have different bandwidth rate limits, priority, and QoS

• EPON OLT Classifies Downstream and the the ONU Upstream are very similar to DOCSIS (Port based as well as Layer 2 – Layer 4 traffic identifiers)

• Bandwidth Allocation Modes (DBA or TDM):– The OLT supports two modes of bandwidth allocation:

• TDM Mode• Dynamic Solicited Mode

– Each LLID is assigned to one mode.– LLIDs assigned to different modes may coexist on the PON– EPON does not have an equivalent to UGS like that defined in DOCSIS



AccessNetworkCapacities

VDSL2orG.fastVDSL2orG.fast

HFC+DOCSIS

HFC+DOCSIS

xPONxPON

PHYLayerRatesafterencodingandFEC(ifused)howeverthecoppersolutionsareestimatecapacity29/9/17 OverviewofPONTechnologiesandSystemArchitecturesforSCTE 17


What’sNext?IEEE100G-EPONTaskForce(802.3ca)

• Workisunderwaydefiningbeyond10GEPONtoinclude25G,50Gand100G

• 802.3caTaskForceObjectives1. Supportsubscriberaccessnetworksusingpointtomultipointtopologiesonopticalfiber2. ProvidespecificationsforphysicallayersoperatingoverasingleSMFstrandandsupportingtheMAC

datarateof:– 25Gb/sindownstreamand25Gb/sinupstream– 100Gb/sindownstreamand100Gb/sinupstream.Thisphysicallayerspecificationshallaccommodateflexibleconfiguration

tosupportoperationatreducedMACdatarates.3. PHY(s)tohaveaBERbetterthanorequalto10-12attheMAC/PLSserviceinterface(ortheframeloss

ratioequivalent)4. Supportcoexistencewith10G-EPON

– Opticalpowerbudgetstoaccommodatechannelinsertionlossesequivalenttothosesupportedbythe10G-EPONstandard– Wavelengthallocationallowingconcurrentoperationwith10G-EPONPHYs

29/9/17 OverviewofPONTechnologiesandSystemArchitecturesforSCTE 18


OverviewofDOCSISProvisioningofEPON(DPoE)


WhatisDPoE?

• DOCSISProvisioningofEPON(DPoE)

• Purpose:– DevelopspecificationsforEPONdevicestosupportDOCSISprovisioningandserviceconcepts(ServiceFlowsandPerServicesTypeQoS)

– DevelopspecificationsforsupportwithDOCSISNetworkManagementSystemsandIPDR

– DevelopspecificationstosupportdeliveryofIPandEthernetServicesoverEPON

– DefineStandardsandCertificationprogramtoenablemulti-vendorinteroperability



DPoEArchitecturalFoundation

IPv4 Host

IPv6 Host

DPoE ONUIPv4 Host

IPv6 HostPON Network

DPoE System

OLT

HFC Network

CM

IPNetwork

CMTS

IPv4 Host

IPv6 Host

IPv4 Host

IPv6 Host

Virtual CM(vCM)

Virtual CM(vCM)

IP Management

IP Management eOAM

DOCSIS OSSServers

DNS

DHCP

SNMP

TFTP

SYSLOG

TimeServer R

29September2017 OverviewofPONTechnologiesandSystemArchitecturesforSCTE 21Source:“DOCSIS® ProvisioningofEPON(DPoE™):ANextGenerationBusinessServicesNetwork”,CurtisKnittle,CableLabsSCTEEXPO2011


ProvisioningInteroperability

OSSI Test

Provisioning and Config File Download Test

Registration Test

DHCPServer

TFTPServer

DPoESystem D-ONUNMS

MPCP

OAMDiscovery

DHCPDiscoveryDHCPOffer

DHCPRequestDHCPAck

ConfigFileTransferConfigviaeOAM

SNMPGet/Set

Source:“DOCSIS® ProvisioningofEPON(DPoE™):ANextGenerationBusinessServicesNetwork”,CurtisKnittle,CableLabsSCTEEXPO201129September2017 OverviewofPONTechnologiesandSystemArchitecturesforSCTE 22


DPoENetworkElements

PON Network

L3Network

OLTL2Network

DPoE System

S-ONU

B-ONU

B-ONU

DEMARC

DEMARC

DEMARC

DPoESystem:ThecollectionofnetworkelementsthatprovidetheDPoEfunctionalitywithintheoperator’snetworkfacilities

DPoEStandaloneONU(S-ONU):atypeofDPoEONUwithmultipleportsthatprovidesbothEthernetservicesandIPservices

DPoEBridgeONU(B-ONU):atypeofDPoEONUthatprovidesonlyEthernetservices

Demarcationdevice(DEMARC):Ownedbytheoperatorandprovidesademarcationpointbetweenthecustomer’snetworkandtheoperator’saccessnetwork



DPoEONUInterfacesandForwarding

SF2 CMCI

SF1 CMCI

LLID6

LLID5

LLID4

LLID3

LLID2

LLID1

SF3 MU

SF4 MU

MI

MI

SF5

SF6

Fiber(toPON)

D-ONU

LLIDIdentificationandQoS

Encapsulation

Classifier(IdentifytargetSF)

CableModemCPEInterface(CMCI):ProvidesIPHSDservice

MEFUNI(MU):Providethedemarcationpointbetweenacustomer’snetworkandtheserviceprovider’snetwork

MEFINNI(MI):representsaninterfacepointbetweentwonetworkelementsinthesameserviceprovidernetworkthatprovidesaUNItoUNIservice



DPoEBenefits:

• LeveragesexistingDOCSISbackofficesystems(provisioning,NMS,IPDR)tosupportEPONnetworkelements

• Leveragesbackofficesystemsenablessmootherintegrationintooperationsandprocesses

• Enablesfullvendor/equipmentinteroperability– similartoCMTSandCableModems

• DevelopedbytheMSOcommunityandCableLabs



Centralized Access Architecture for PONandDistributed Access Architecture for PON“AComparisonofCentralizedvs.DistributedAccessArchitecturesforPON“,MikeEmmendorferandSebnemZorluOzer,INTX2016,SpringTechForum

26


• OLTMACandPHYarelocatedattheFacility

• ComplexSystemsarenotintheODN/OSP

• ODNiscompletelytransparentO-E-Oand/orpassivesplitters

• SingleDataNetwork– P2MPOLTisintheHeadend

• OLTMACandPHYarelocatedlocatedintheODN(node/cabinet)

• Calleda“RemoteOLT”(R-OLT)

• ODNisanactiveLayer2/3architecture

• RequiresTwo(2)DataNetworks:– P2PEthernetDistributiontoRemoteOLT– P2MPfromR-OLTtoSubscriber

TypesofPONNetworkArchitectures

Centralized Access Architecture for PON Distributed Access Architecture for PON



Drivers&AssessmentCriteriaForCAAvs.DAAforPON

28

DriversPONExtenderorRemotePON1. FiberUtilization2. ServingAreaDistance(FacilitytoCPE)3. Space/Power/ScalingUtilizationinHE4. SDN/NFVSupport5. CostAssessmentE2E(OPEXand

CAPEX)

AssessmentCriteriaofAccessArchitecture1. FiberUtilization2. ServingAreaDistance(FacilitytoCPE)3. Space/Power/ScalingUtilizationinHE4. Space/Power/ScalingUtilizationinODN5. SDN/NFVSupport6. CapacityPerformanceDifferences7. LatencyPerformanceDifferences8. HighAvailabilitySystem/Network9. SystemandOperationalComplexity10. CostAssessmentE2E(OPEXandCAPEX)



OLT

DPoESubsystems

US LTMDS TM

EPON MAC

US UTM

DPoESystem

RPE VSI(N)

802SwitchVSI(1)

PBBI-BEB

VE

DOCSISBackOffice/OSS

SNMP,IPDR,TFTP,DHCP,etc.

IP Network

R P

R PE

R/X

vCM: Virtual Cable ModemR: RouterPE: Provider Edge VE: VPLS Edge (Virtual Private LAN Service Edge) VSI: Virtual Switching Instance802 Switch: Switch based on Layer 2 PBB: Provider Backbone Bridging [802.1ah] I-BEB: I-component Backbone Edge BridgeOLT: Optical Line TerminalDS TM: Downstream Traffic ManagementUS UTM: Upstream Upper Traffic ManagementUS LTM: Upstream Lower Traffic Management Scheduling / Shaping Algorithms / QoS

10G PHY

DPoEMediationLayervCM vCM



UpstreamLowerTrafficManagement(USLTM)• Scheduling/ShapingAlgorithms/QoSPriorityofLLIDs

(ServiceFlows)• DynamicBandwidthAllocation(DBA)– solicited

scheduling• TokenSizeperLLID• PollingIntervalperLLID• Scheduling/QueuingAlgorithm

• UnsolicitedScheduling• MPCPProcessing

DPoESystemFunctions

MLSRDPoEMediation

Layer

US LTM

10G PHY

DS TM

Timing

EPON MAC

VSI(N)802

Switch

VSI(1)R PE

DPoEMediationLayerFunctions• MediationbetweenOSS,NMS,andEPONLayers• VirtualCableModem(vCM)forregisteredD-ONU• vCMhandlesalltheOAMPfunctionsforDOCSIS• vCMcanproxyrequests,signaling,andmessagestotheD-

ONUusingEPONOAMmessages• CommunicatewithD-ONUforprovisioningallrequired

services(e.g.IPHSD,MEFetc.)• vCMInterfaceswithSystemControlPlanefor

configuration(e.g.serviceflow,classifier,anddownstreamQoSetc.)

• PlatformManagementInterfaces(CLI,SNMP,etc.)

DownstreamTrafficManagement(DSTM):• SubscriberManagementFiltering(drop)• Classification&Policing(toServiceFlow(SF))• Multicast/PacketReplication• Scheduling/ShapingAlgorithms/QoSPriorityofSF

(LLIDs)(DOCSISQoS,MEFMetering/ColorMarking)• PacketCountersandStatics(IPDRRawData)• DSCP/ToS/TPID(MEF)OverwriteandTranslation• CoSMapping• CALEA/LawfulIntercept (maynotbepartofTM)

vCM vCM

US UTM

UpstreamUpperTrafficManagement(USUTM)• CALEA/LI(maynotbepartofTM)• DSCP/ToS/TPID(MEF)Overwrite• CoSMapping• PacketCountersandStatics(IPDRRawData)• SubscriberManagementFiltering(drop)• CableSourceVerify/MACLearning/ProtocolThrottling• Classification&PolicingforforwardingtowardtheNNIor

backplane(aggregateratelimiting)

EPONPHYLayer(Upstream)• FEC• PR-type PMD(PONOptics)

EPONMACLayer• LLIDtoVLAN(tunnelID)• Operation,Administration,andManagement(OAM)• MultipointControlProtocol(MPCP)(Discovery&

Registration,GATEGeneration,REPORTProcessing,RoundTripTime,LLID/Preamble(FrameFormation)

• EncryptionAES128

MultilayerSwitchRouter(Control&DataPlane)• Routing• ARP• NDP• IS-IS• OSPF

• MP-BGP• MPLS• VPLS• .1ad/.1ah• L2Switching

ControlPlane

ControlPlaneFunctions• CentralizedControlforallrequiredconfigurations(e.g.port,

channelandMCdomainetc.)• CentralizedControlforsendingallthecollectedstats(e.g.

port,channelandmacdomainetc.).• EPONMACforprogrammingallrequiredfunctionality(e.g.

port,channel,LLIDandupstreamQoSetc.).• DSTMforprogrammingallrequiredfunctionality(e.g.service

flow,classifier,anddownstreamQoSetc.).• Implementthecontrolplaneformulticastforwarding

TCAM

Ternarycontent-addressablememory(TCAM)tablelookupandclassificationofIPv4,IPv6packetsandL2frames



CentralizedAccessArchitecture(CAA)forPONPurposeBuiltPassives CPEServiceProviderFacility

CentralizedAccessArchitecture– OLTwithStandardWavelengths

ONUONU

//

ONUONU MDU

ML

SR

DPoE

US

LTM

& M

ACPH

Y/XFP

DS

& U

S TM

Timing

SFU

EnterpriseSMB

10GEPONOpticsSingleFiberandSingle10GPONWavelengths

Integrated- DPoESystem

CentralizedAccessArchitecture– OLTwithMultipleWavelengths

ONUONU

ONUONU MDU

ML

SR

DPoE

US

LTM

& M

ACPH

Y/XFP

DS

& U

S TM

Timing

SFU

EnterpriseSMBSingleFiberandMultiple10GPONWavelengths(8)


WDM

10GEPONOpticsusingMultipleWavelengthPlan //OLTwith80GPassiveODN

FixedColorONUTunableONU

Note1:OLT/DPoESystemisshowninasingleshelf.However,usingaSDNarchitecturedesignthecontrolanddataplaneprocessesmaybeseparated,withthecontrolplaneprocessesplacedonservers&controltrafficthroughspineswitches.Additionally,usingaNetworkFunctionVirtualization(NFV)architecturedesignbothcontrolanddataplaneprocessesmaybeplacedonservers&trafficthroughspineswitches.

PONExtender

CentralizedAccessArchitecture– OLTwithPONExtender

ONUONU

//

ONUONU MDU

ML

SR

DPoE

US

LTM

& M

ACPH

Y/XFP

DS

& U

S TM

Timing

SFU

EnterpriseSMB

EPONOpticsSingleFiberandLotsofWavelengths


WDM

10GEthernetOpticsWDM 10

GEthe

rnet

Optics

O-E-O

PON

Optics

ODNActives

InternalAccessBUandCCAPBUMiniSummit 3106December2016


DistributedAccessArchitecture(DAA)forPONPurposeBuiltCPEServiceProviderFacility ODNActives Passives

DistributedAccessArchitecture– RemotePONMAC

US

LTM

&

MAC

PONOptics

Timing

Laye

r 2

RemotePONMAC(RPM)

ONUONU

//

ONUONU MDU

ML

SR

DPoE

Agg.

Sw

itch

PHY/XFP

DS

& U

S TM

Timing

SFU

EnterpriseSMB

M-OLTPacketShelf

SingleFiberandLotsofWavelengths

10GEthernet+MACsecWDM

EPONOptics

Note1:M-OLTPacketShelfisshowninasingleshelf.However,usingaSDNarchitecturedesignthecontrolanddataplaneprocessesmaybeseparated,withthecontrolplaneprocessesplacedonservers&controltrafficthroughspineswitches.Additionally,usingaNetworkFunctionVirtualization(NFV)architecturedesignbothcontrolanddataplaneprocessesmaybeplacedonservers&trafficthroughspineswitches.Note2: R-OLTisshownusingNFVfortheDMLonlyandSDNmayusedaswell.Note3: R-OLTandRDSmayuseSDN.

MAC

sec

MAC

sec

DistributedAccessArchitecture– RemoteDPoESystem

US

LTM

&

MAC

PONOptics

Timing

L2 +

L3

TM

RemoteDPoESystem(RDS)

DPoE

ONUONU

//

ONUONU MDU

ML

SR

Agg.

Sw

itch

PHY/SPF+

SFU

EnterpriseSMB

EPONOpticsSingleFiberandLotsofWavelengths

MLSR

WDM

10GEthernet+MACsecWDM M

ACse

c

MAC

sec

EMS

PHY/SFP+

PHY/SFP+

DistributedAccessArchitecture– RemoteOLT

US

LTM

&

MAC

PONOptics

Timing

Laye

r 2

TMDP

oEClient

RemoteOLT(R-OLT)DPoE

ONUONU

ONUONU MDUSFU

EnterpriseSMB

//

ML

SR

Agg.

Sw

itch

PHY/SPF+

MLSR

SingleFiberandLotsofWavelengths

10GEthernet+MACsecWDM

EPONOptics

MAC

sec

MAC

sec

EMS

PHY/SFP+W

DM

WDM

InternalAccessBUandCCAPBUMiniSummit 3206December2016


LeadingOLTsSystemandNetworkArchitectures

1. CentralizedAccessArchitecture(CAA)forPONOLTTraditionalOLTwithPONwithAllPassiveOutsidePlant(PONMACintheCO/HEwithNoActivesintheOSP)

2. CentralizedAccessArchitecture(CAA)forPONOLTTraditionalOLTwithPONExtenderandNoSoftwareintheOSP(SimpleLayer1Optical-Electrical-Optical(O-E-O)conversioninthenode/cabinet)

3. DistributedAccessArchitecture(DAA)forPONOLTRemoteOLTintheOSP/CabinetwithSoftwareintheOSP(Routing/Switching,TrafficManagement,PONMAC/PHYinthenode/cabinet)

29/9/17 OverviewofPONTechnologiesandSystemArchitecturesforSCTE 33


CentralizedAccessArchitecture(CAA)forPONOLTTraditionalOLTwithPONwithAllPassiveOutsidePlant(PONMACintheCO/HEwithNoActivesintheOSP)

34

20 km Distance at 1:32 Customers

ONU

ONU

ONU

ONU

//

10 km Distance at 1:64 Customers

ONU ONU

//

ONU

ONU

// ONU

ONU

ONU ONU

Passive Optical splitter //

//

DPoESystem(Basic)

Standard PON Wavelengths

DPoEMedia4on(vCM)

PONMAC

TrafficMgmtL2/L3 PON

Op4cs

Headend

PON MAC / PHY in the Headend



CentralizedAccessArchitecture(CAA)forPONOLTTraditionalOLTwithPONExtenderandNoSoftwareintheOSP(SimpleLayer1Optical-Electrical-Optical(O-E-O)conversionatthenode/cabinet)

35


PON Fiber Link Extender (Layer 1) Performs O-E-O Wavelength Translation

PON MAC and PHY in the Headend (Centralized Access Architecture)

WDM

DWDM or CWDM

10G Ethernet Optics

PON Extender

Headend

PON MAC / PHY in the Headend

DPoESystem(Basic)

DPoEMedia4on(vCM)

PON

MAC

Traffic

MgmtL2/L3

10G

Ethernet

Op4cs

10G

Ethernet

Op4cs

O-

E-

O

10GEPONServiceGroup1

10GEPONServiceGroupn

ONU ONU

//

ONU

ONU

// ONU

ONU


Optical DWDM or CWDM PON ~ 80 km

MDU

Extend PON Serving Area Reach and Expand the Number of Customers Served

PON

Op4cs

ONU ONU MDU

20 km at 1:32 Customers 10 km at 1:64 Customers 2 km at ~128 Customers


Distancesof5kmfromthePONExtendertotheONUshavebeenobservedtosupport128customers/ONUs


DistributedAccessArchitecture(DAA)forPONOLTRemoteOLTintheOSP/CabinetwithSoftwareintheOSP(Routing/Switching,TrafficManagement,PONMAC/PHYinthenode/cabinet)

36

10GEPONServiceGroup1

10GEPONServiceGroupn


Headend

Switch / Router

WDM

Routers

ONU ONU

//

ONU

ONU

// ONU

ONU

ONU ONU


Optical DWDM or CWDM PON ~ 80 km

MDU

MDU

Extend PON Serving Area Reach and Expand the Number of Customers Served

DWDM or CWDM

10G Ethernet Optics

WDM

PONMAC

TrafficMgmt

L2/L3

PONOpDcs

Layer 2 - 3 Functions in the Node

Remote OLT (PON MAC / PHY Functions in the Node)

20 km at 1:32 Customers 10 km at 1:64 Customers 2 km at ~128 Customers

DPoEMediaDon(vCM)


Distancesof5kmfromtheRemoteOLTtotheONUshavebeenobservedtosupport128customers/ONUs


OverviewofPurposeBuiltOLTSystemsandSDN/NFVSystemsforPON“AComparisonofPurposeBuiltOLTSystemsvs.SDN-NFVSystemsforPON”,MikeEmmendorferandSebnemOzer,SCTE-ISBEWorkshop,Sept.2016


WhatisSDN andNFV?

• SDNseparatesdataandcontrolandmanagementplanetoenable:– Asoftwareprogrammablenetwork– Acentralizedcontrollerwithdynamicmanagementandprovisioning– Reuseofparitycontrolfeaturesovermultipleaccesstechnologies– Dynamiccreation,modificationanddeletionofservices

• NFVdecouplesSWfromHWtoenable:– UsingCOTShardwareandopensoftware– Dynamicresourceandservicemanagement– Reuseofparityforwardingfeaturesovermultipleaccesstechnologies– Definingefficientnetworkandservicechains



WhataretheDriversbehindSDN/NFV?(1of2)

• ElasticityandScalabilityEnablebySystemModularity(DisaggregationofCCAP&OLT)– Disaggregation:SeparationofHardwareandSoftwareFunctionalBlocks

• (PHY,MAC/PHY,TrafficManagement/ServiceGateway,SwitchFabric/Backplane,Control,WAN/NSILink)– SeparationofControlandDataPlanes– Separatingthenetworkfunctionsallowsplacementofcapacitywhereandwhenneeded

• (IOcapacityforaccesslayerlikePON,P2PEthernet,DOCSIS,etc.whereandwhenneeded)

• AgilityEnablingTimeToMarket– ServiceCreationandProvisioningAutomation– End-to-endAnalyticsassistsindeterminingresourceservicecapacity– Consistentservicesandfeaturesacrossvendorsandaccesstechnologies(DOCSIS,PON,Ethernet,Wireless)

• OpenPlatformEcosystem– NoProprietarySystemVendorsoftwareorprotocols– SystemVendor,NetworkOperators,andCommunitydevelopfeatures/applications– AutomateOAM&P– Interoperability– Innovation



WhataretheDriversbehindSDN/NFV?(2of2)

• ReduceCAPEX– COTSswitches,servers,storage,computeelements– Reducedheadendestate,powerandcooling– Abilitytoscaleperdemandandintegrateonlyneededfunctions– Newpricingoptionsusinglicensespersubscriber,throughput,featuresenable(pay-as-you-grow)– OpenSoftwareplatformsfrommultiplevendors

• ReduceOPEX– Reducedheadendpowerandcooling– Zerotouchprovisioningandprogrammablenetworksandserviceswithreducedcomplexity– End-to-endvisibility,analyticsandserviceassuranceorchestration– Dynamicandefficientresourcemanagement(selfhealing/optimizingnetworks)– StandardAPIs,controlandmanagementinterfaces

• AgileServicesandNewBusinessModels– Abstractedservicemodelsandautomatednetworksforshortenedserviceintegration– EnhancedQoEandcustomerandbusinessportals– Cloudbasedapplicationsandabstractedservicemodelsforbusinesstobusinessservices– Centralizedcontrolofdistributedfunctionsdirectedandcomposedbyservicespecificrequirements



SwitchFabric&W

AN

SwitchFabric&W

AN

HighSpeedWANPorts

SwitchFabric

ManagementPlane

ControlPlane(L3)

DataPlane(L3)

TraditionalI-CCAP(e.g.I-CCAPDOCSISorPONOLTSystem)

Active-ActiveNon-BlockingSwitchFabric

Active-ActiveSwitchFabric

&WAN

AccessLineCardsxClientSlots

USLTM

10GPHY

DSTM

EPONMAC

USUTM

SwitchFabric

10GEPONPorts

PurposeBuiltCCAPBasedDPoESystem(Aggregation)

DPoEMediationvCM vCMControlPlane

CoreRouter CoreRouter

100GWANPorts

PONExtenderNode

10GEthernetusingDWDM

10GEPONPortsOverviewofPONTechnologiesandSystemArchitecturesforSCTE 4129September2017

SwitchFabric&W

AN

SwitchFabric&W

AN

HighSpeedWANPorts

SwitchFabric

ManagementPlane

ControlPlane(L3)

DataPlane(L3)

DataPlane

ARRISDCAM,UCAM,&EPFMClientCards

ARRISRSM2FabricCard

FileServer

FTP/SFTP/TFTP

NTP/SNTP

TODServer

SNMP

SNMPServer

SYSLOG

SYSLOGServer

IPDRStreamingProtocol

IPDRCollector

CLIoverSSHv2/Telnet

Operator(CLI)

DHCP

DHCPServer

E6000ManagementInterfaces

SwitchFabric

DSRFPorts

MAC (DS) MAC (US)

DAC ADCPHY (DS) PHY (US)

SwitchFabric

USRFPorts


SwitchFabric&W

AN

SwitchFabric&W

AN

HighSpeedWANPorts

SwitchFabric

ManagementPlane

ControlPlane(L3)

DataPlane(L3)

USLTM

10GPHY

DSTM

EPONMAC

USUTM

SwitchFabricDPoE

MediationvCM vCMControlPlane

SwitchFabric&W

AN

SwitchFabric&W

AN

HighSpeedWANPorts

SwitchFabric

ManagementPlane

ControlPlane(L3)

DataPlane(L3)

DataPlane

PHYDAC/ADC

TimingLayer 2PHY/SFP+

10GEthernetusingDWDMwithMACsec

ServerFarm

WDM

RFPorts

S-Leaf/DAASLeafSwitch

100GWANPorts

SpineSwitch SpineSwitch40G/100GEthernet

DAA+SDN +NFVDOCSISbasedSystem(Disaggregation)


WDM

LeafSwitch LeafSwitch

40GEthernet 10GEthernet

TrafficElasticityandScalabilityNorthSouthEastWest

PNF/NFV EMS/SDN

AggregationtoDisaggregation(CAAtoDAA+SDN+ NFV)

AccessLineCards


Active-ActiveSwitchFabric&WAN


RFPorts

SwitchFabric

DSRFPorts

PurposeBuiltI-CCAPDOCSISBasedSystem(Aggregation)

SomeorAllAccessLineCard

MovestoNodeorShelf

SwitchFabric

MACCore


100GWANPortsWANLinksDataRate

LessThanSumofAllPONLinks

OverviewofPONTechnologiesandSystemArchitecturesforSCTEPNF(PhysicalNetworkFunctions)

RemotePHYShelf

4229September2017

MAC (DS) MAC (US)

DAC ADCPHY (DS) PHY (US)

SwitchFabric

DEPI/UEPI/GCP/OOB

PHYDAC/ADC

L2/L3

MAC

CtrlPlane

PHY/SFP+MACsec

OOB

RPDRMD

CCAPManagerRPD

Manager

USRFPorts

RMDManager

DOCSISSystems



ServerFarm

10GEPONPorts

100GWANPorts

DAA+SDN +NFVDOCSISbasedSystem(Disaggregation)


PNF/NFV EMS/SDN

AggregationtoDisaggregation(CAAtoDAA+SDN+ NFV)

SwitchFabric

vRouter

OverviewofPONTechnologiesandSystemArchitecturesforSCTEPNF(PhysicalNetworkFunctions)

1RUOLT

4329September2017

R-OLT

vOLTManagervCM

ManagervRouterController

SwitchFabric&W

AN

SwitchFabric&W

AN

HighSpeedWANPorts

SwitchFabric

ManagementPlane

ControlPlane(L3)

DataPlane(L3)

USLTM

10GPHY

DSTM

EPONMAC

USUTM

SwitchFabricDPoE

MediationvCM vCMControlPlane

SwitchFabric&W

AN

SwitchFabric&W

AN

HighSpeedWANPorts

SwitchFabric

ManagementPlane

ControlPlane(L3)

DataPlane(L3)

DataPlane

AccessLineCards


Active-ActiveSwitchFabric&WAN


10GPassiveNetworkOr

10GActiveNetworkusingPONExtender

USLTM

10GPHY

DSTM

EPONMAC

USUTM

SwitchFabric

10GEPONPorts

PurposeBuiltCCAPBasedDPoESystem(Aggregation)

DPoEMediationvCM vCMControlPlane


100GWANPortsWANLinksDataRate

LessThanSumofAllPONLinks

PONExtenderNode


10GEPONPorts

DataPlane

RemoteOLT(R-OLT)Nodeor1RUShelf

US LTM & MAC

PONOptics

TimingLayer 2

TMDPoEClient

PHY/SFP+MACsec

SomeorAllAccessLineCard

MovestoNodeorShelf

PONSystems

WDM

WDM

S-Leaf/DAASLeafSwitch

SpineSwitch SpineSwitch40G/100GEthernet

LeafSwitch LeafSwitch

40GEthernet 10GEthernet

TrafficElasticityandScalabilityNorthSouthEastWest


High-LevelMSOSDN/NFVArchitecturefor10GEPON

SwitchFabric


ServerFarms

RemoteOLT(R-OLT)

WDM

10GEPONPorts

S-LeafSwitch LeafSwitch(ToR)

SpineSwitch SpineSwitch

40G– 100GEthernet

WDM

LeafSwitch(ToR) CoreRouter

10G/40G100G

vRouter

vCCAP

vCPE DHCP

TFTP

RADIUSOtherVNFs

OtherPNFs

SDNController

ServiceandResourceOrchestration

ApplicationLayer

OSS/BSSSubscriber/ServiceDatabaseNetworkInventory Policy

Analytics/Service

Assurance/Business

Intelligence

OtherServices/Applications

IPVideoApps

UnderlayandOverlayController

ServiceManager

VideoServer

Controllers

IP-HSDApps

Business/MEFApps

SwitchRouter

Controllers

OverviewofPONTechnologiesandSystemArchitecturesforSCTE

OLTManagervCM

ManagervOLT

Manager

RADController

ServiceOrchestrator

P-OLT(PhysicalOLT)PNF(PhysicalNetworkFunctions)

vManagervCoreVNFM

vCoreEMS

SDN-O NFV-OOrchestratorCommon GlobalService-OvManagerLifeCycleManager

4429September2017

ShelfOLT

ChassisOLT

LeafSwitch(ToR)100GEthernet


10G/40G100G

10GEthe

rnet

usingDW

DM

WDM

WDM

10GEPONPorts

PONExtenderNode

WDM

WDM

10GEPONPorts

10GEPONPorts10

GEthe

rnet

usingDW

DM


CAAOLT/DPoESystem&DAAOLT/DPoESystemOptions

OverviewofPONTechnologiesandSystemArchitecturesforSCTE 4529September2017

FileServer

FTP/SFTP/TFTP

NTP/SNTP

TODServer

SNMP

SNMPServer

SYSLOG

SYSLOGServer


IPDRCollector

CLIoverSSHv2/Telnet

Operator(CLI)

DHCP

DHCPServerMSOBack

OfficeSystemsandProcesses

USLTM

10GPHY

DSTM

EPONMAC

USUTM

SwitchFabric

DPoEMedia?onvCM vCM

ControlPlane

SwitchFabric&W

AN

MLSR

VSI(N)802

Switch

VSI(1)RPE Control

Plane

HighSpeedWANPorts

SwitchFabricSwitchFabric&W

AN HighSpeedWANPorts

SwitchFabric

ManagementPlane

ControlPlane(L3)

DataPlane(L3)

DataPlane

RemotePONMAC(RPM)

US LTM & MAC

PONOptics

DataPlaneMACsecPHY/SFP+

10GEPONPorts

DSTM USUTM

DPoEMediation

ManagementPlaneControlPlane(L3)DataPlane(L3)

RemoteOLT(R-OLT)

US LTM & MAC

PONOptics

DataPlaneCrtlPlane

TMDPoEClient

MACsecPHY/SFP+

PHY/XFPMACsec

DPoEMediation

ManagementPlane

AggregationMLSRwithMACsec

RemoteOLTwithDPoE

US LTM & MAC

PONOptics

DataPlaneCrtlPlane

TMDPoEMed

MACsecPHY/SFP+

ManagementPlane


RemoteDPoESystem

US LTM & MAC

PONOptics

DataPlaneCrtlPlane

TMDPoEMed

MACsecPHY/SFP+


PONOptics

PONExtender

OEO

Mgmt Plane

M-OLTPacketShelf

I-DPoESystem






OLTManager OLTManager


ExampleofaRemoteOLTwithOLTManagerInterfaces

vOLTManager

MgmtPlane

(Legacy)vCMManager

vCMs

vRouter S-LeafSpine/leaf

servers

TunneledDPoE-OAM

MACsecforconnectiontoS-Leaf(DAAS)andremoteauthenticationserver

ONUR-OLT

ONUR-OLT

ONUR-OLT

46OverviewofPONTechnologiesandSystemArchitecturesforSCTE29September2017

MgmtPlane

(Future)

Overlay/UnderlayController

OpenFlow

FileServer

FTP/SFTP/TFTP

NTP/SNTP

TODServer

SNMP

SNMPServer

SYSLOG

SYSLOGServer


IPDRCollector

CLIoverSSHv2/Telnet

Operator(CLI)

DHCP

DHCPServer

RESTCONF(CLI)APIoverHTTPS

Operator(RESTCONF)

vCMManagerInterfaces- SNMP(CMMIBs)- vCMLogs- vCMSyslog- TFTP- DHCP-RAforvCMMgr

NETCONF/YangModels

vOLTManagerInterfaces- SNMP(CMTSandSystemMIBs)- vOLTManagerSystemLogs- vOLTManagerSystemSyslog- vOLTManagerIPDR- TFTP- DHCPforvOLTManagerIPAddress

FutureInterfaces

CurrentInterfaces

OLTManager

SYSLOG

Fluentd

TelemetryData

Kafka

10GEthernet+MACsec


InitialPros&ConsofPurposeBuiltDPoESystems

• Pros– Hardwareandsoftwareintegrationcreateahighlyreliablesystem

• MaturityofSystemenableslowMTTDandMTTR– Hardwareandsoftwareareoptimizedforeachfunction

• (examplehighpacketprocessinginlessspace,power,andcostthatcommodityserverNFV)– Supplierscanrigorouslytestandtroubleshootknownhardwareandsoftware– Enablecustomerstogotoasinglesuppliertoresolvehardwareand/orsoftwareissues

• Cons– Accusedofslowinnovationofhardwareandsoftwarefeatures– Closedpurposebuiltsystemshaverigidscalabilitywhichbindsaccessports,fabric,WANports,typeandnumberofslotsalltogether,ifanyoneisexhaustedanothersystemisrequiredtoaddresscapacity.

– Purposebuiltsystemvendorhardwareandsoftwaremaynotberepurposedtorundifferentsoftware– Newaccesstechnologies(DOCSIS,PON,andEthernet)ontheCCAPrequirerewritingofsimilarfunctions– Lackofprogrammabilityfromasinglecontroller(EMS)toallsystemcomponents



InitialPros&ConsofSDN/NFVDPoESystems

• Pros– Disaggregation=ElasticityandTargetedScalabilitywhere/whenneeded– AbilitytoPay-as-you-growwherecapacityisneeded(clientcards,WAN,control,chassisindependence)– Newpricingoptionsusinglicensespersubscriber,throughput,featuresenable(pay-as-you-grow)– Agilityconsistentservicesandfeaturesacrossvendorsandaccesstechnologies(DOCSIS,PON,Ethernet,Wireless)– Promisesofopenplatformecosystem(NoProprietarySystemVendorhardware,software,interfaces)– Readinessforcontrolplaneusingcommodityx86exist– NewbusinessrelationshipsforSDN/NFVhostedwebservicesfordisasterrecoveryandcapacityaugmentation– SDN/NFVenablestheserviceprovidertoselecthardwareandsoftwareplatformsandrequiresystemvendorstodevelopon

thosesystems.Thisenablesconsistentplatforms,vendorhardwareindependence,andmigrationtodifferentsystemvendors.

• Cons– Disaggregation=ComplexityandIntegration– Manywhite-boxswitchesusemerchantsiliconforacceleratedandspecializedpacketprocessing(notopen/offshelf)– x86forhighpacketprocessingdataplanerequiremorespace,power,andcost– Scalabilityofsomeserverbasednetworkfunctions(vRouter)arenotatallatthelevelofpurposebuiltsystems– Lackofstandardsandcertification– Interoperabilityissuesmaybetroublesomeamongvarioushardware,software,andinterfaces– Maturityofsystemmayimpactend-to-endMTTDandMTTR– Opensourcedoesnotmeanthesameimplementation



Questions?

29September2017 49


Thankyou!

29September2017 50


References

• “DOCSIS® ProvisioningofEPON(DPoE™):ANextGenerationBusinessServicesNetwork”,CurtisKnittle,CableLabsSCTEEXPO2011

• “NextGenerationNetworksforMultipleDwellingUnits(MDUs)”,MichaelJ.Emmendorfer,SCTE-ISBEWorkshop,September2014

• “ComparingIEEEEPON&FSAN/ITU-TGPONFamilyofTechnologies“,MichaelJ.Emmendorfer,SCTE-ISBEWorkshop,September2014

• “AComparisonofCentralizedvs.DistributedAccessArchitecturesforPON“,MikeEmmendorferandSebnemZorluOzer,INTX2016,SpringTechForum

• “AComparisonofPurposeBuiltOLTSystemsvs.SDN-NFVSystemsforPON”,MikeEmmendorferandSebnemOzer,SCTE-ISBEWorkshop,Sept.2016

• “End-to-endIPVideoServicesover10GEPONAccessNetworkArchitectures“,SebnemZorluOzerandMikeEmmendorfer,SCTE-ISBEJournalofDigitalVideo,Volume1,Number2,Sept.2016



PON Acronyms and Meaning

Term MeaningAPON ATMPassiveOpticalNetwork

BPON Broadband-PassiveOpticalNetwork

GPON Gigabit-PassiveOpticalNetwork

GEPON GigabitEthernet- PassiveOpticalNetwork(akaEPON)

EPON EthernetPassiveOpticalNetwork(akaGE-PON)

10EPON 10GigabitEthernetPON

DPON DataOverCableServiceInterfaceSpecification- PONusesEPONforMAC/PHYandDOCSISdefinedtransactionsandstandardsforOAM&P.(aka:DOCSISoverEPONorDPON)

RFoG Radio FrequencyoverGlass(aka:RadioFrequencyPON(RF-PON)orRadioFrequencyoverGlass(RFOG)orHybrid-Fiber-CoaxPON(HFC-PON)orCablePON

WDM-PON WavelengthDivisionMultiplexingPON

FTTx FiberTo Thex(FTTHHome,FTTBBusiness,FTTPPremise,FTTCCurb)



High-LevelMSOSDN/NFVArchitecturefor10GEPON

SwitchFabric


ServerFarms

RemoteOLT(R-OLT)

WDM

10GEPONPorts

S-LeafSwitch LeafSwitch(ToR)

SpineSwitch SpineSwitch

40G– 100GEthernet

WDM

LeafSwitch(ToR) CoreRouter

10G/40G100G

vRouter

vCCAP

vCPE DHCP

TFTP

RADIUSOtherVNFs

OtherPNFs

SDNController

ServiceandResourceOrchestration

ApplicationLayer

OSS/BSSSubscriber/ServiceDatabaseNetworkInventory Policy

Analytics/Service

Assurance/Business

Intelligence

OtherServices/Applications

IPVideoApps

UnderlayandOverlayController

ServiceManager

VideoServer

Controllers

IP-HSDApps

Business/MEFApps

SwitchRouter

Controllers

OverviewofPONTechnologiesandSystemArchitecturesforSCTE

OLTManagervCM

ManagervOLT

Manager

RADController

ServiceOrchestrator


vManagervCoreVNFM

vCoreEMS

SDN-O NFV-OOrchestratorCommon GlobalService-OvManagerLifeCycleManager

5329September2017

ShelfOLT

ChassisOLT

LeafSwitch(ToR)100GEthernet


10G/40G100G

10GEthe

rnet

usingDW

DM

WDM

WDM

10GEPONPorts

PONExtenderNode

WDM

WDM

10GEPONPorts

10GEPONPorts10

GEthe

rnet

usingDW

DM


SystemArchitecture

• OSS/BSSandApplicationLayer– Maintainserviceandbusinesspolicies,subscriberandotherbusinesscustomerdatabasesandnetworkinventoryandtopologydatabase

– Customercare,operatorandpartnerportals– Providecableoperator’sdirectivesonservices,subscribersandnetworksforbothinitialdesign(configurationofelements,staticservices)andruntimeoperations(dynamicservices andscaledservices)operations.

– IP-HSD,IPVideo,Businessandother(e.g.tenant)services– BusinessIntelligence,analyticsandtopologyinformation– CloudFoundry(industrystandardplatformforOpenSourcecloudapplications)

• OrchestrationLayer– Serviceandresource(networking,computeandstorage)orchestration

• ServiceOrchestration(XOS)VMOrchestrationonserverandcloud(OpenStack,CloudStack,Hypervisor…)– Serviceandnetworkchaining,managementofNFVIs– Elasticresourcemanagementbasedoncapacity,performanceandpowerrequirementsandresourceoptimizationandloadbalancing

– SupportforlegacyEMS/NMS– End-to-endserviceassuranceandmonitoring– Underlayfabricandoverlaynetworkmanagement



SystemArchitecture

• SDNControllers– NETCONF/YANGforconfigurationandmanagement(FCAPS);OpenFlowforprogrammingforwarding;legacySNMP/CLI;ProprietaryAPIs

– Accessnetworkandservicecontrollers• vDPoESystemandvCMcontroller

– MediationbetweenOSS,NMSandEPONlayers– ConfigurationandmanagementofDPoEbasedOLTandONU(DOCSISOAMPfunctions)

• R-OLTcontroller– Remoteaccessdevicespecificconfigurationandmanagement

• vRouter/MLSRcontroller– ConfigurationandmanagementofOLTroutingfunctionality

• Switch/routercontroller– Configuration,managementandcontroloffabricswitches/routers

• Videocontrollers– ConfigurationandmanagementofvideofunctionssuchasMulticast(M-ABR),S-ABR,nDVR,vCDNetc…

– NetworkController(OpenDayLight,ONOS)



SystemArchitecture

• NetworkFunctions– Virtual(SWonCOTSelements)andphysical(embeddedinHW)andpurposebuiltnetworkfunctions

• Datavolume,controltransactionrate,performanceandsecurityrequirements– Accessnetworkandservicefunctions

• vRouter/MLSR:OLTRoutingfunctionality• vCPE:CPE/SGrelatedfunctionssuchasparentalcontrol,firewall• vVideo:VideoservicespecificfunctionssuchasM-ABR,S-ABRservers,nDVRrecorder,CDN/edgecache…

– Disaggregationoffunctionsintocommonandspecificfeatures– Supportforcontrol/managementbycontrollersandorchestrators– Supportforanalytics– ImplementedasVMs,containers

• FabricNetwork– Spineandleafswitches

• ControlledandmanagedbySDNcontroller/orchestrator– AccessspecificS-leafswitch
