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1、#CiscoLive#CiscoLiveRoberta Maglione-Technical Solutions ArchitectGlobal MIG Architectures SpecialistsBRKSPG-2133Evolution of the transport network architecture in the context of 5Gand Open RAN 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveEnter your personal notes hereC
2、isco Webex App Questions?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 sp
3、eaker until June 9,2023.12343https:/ 2023 Cisco and/or its affiliates.All rights reserved.Cisco PublicBRKSPG-21333#CiscoLive 2023 Cisco and/or its affiliates.All rights reserved.Cisco PublicAgendaIntroductionRAN and Transport Network EvolutionCisco 5G Converged SDN Transport5G Transport in Hybrid Cl
4、oud EnvironmentConclusionBRKSPG-21334Introduction 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveDisaggregationRadio AccessMobile CoreConverged CoreOpen,DisaggregatedAutomationClosed LoopMulti DomainNetwork SlicingService AssuranceConvergenceAny AccessCommon Sub Mgmt.Conv
5、erged TransportCommon PolicySoftware CentricVirtualizationCloud NativeEdge ComputingProgrammableNew RadioHigh BW,low latencyPacket based,Statistical MultiplexingMassive MIMO5G Architectural shiftsImpact network evolutionBRKSPG-21336RAN and Transport Network Evolution 2023 Cisco and/or its affiliates
6、.All rights reserved.Cisco Public#CiscoLiveRAN ComponentsRadio HeadsRadio UnitBase BandUnitCell Site RouterRUDUCUHigh PHYLow MACHigh MACLow RLCHigh RLCPDCPRRM/RRCLow PHYRFSplit OptionInterfacesOption 1Option 2Option 2F1(3GPP)F1(3GPP)Option 3Option 4Option 5Option 6Option 7aOption 7aF2(3GPP)F2(3GPP)e
7、CPRIeCPRI,ORAN(7.2x)ORAN(7.2x)IEEE IEEE RoERoEOption 7bOption 7bOption 7cOption 7cOption 8CPRICPRIOptimized Transport CostOptimized RF GainsBase BandUnitRU:Radio Unit,CU:Centralized Unit,DU:Distributed Unit.BBU:Baseband Unit,CPRI:Common Public Radio RU:Radio Unit,CU:Centralized Unit,DU:Distributed U
8、nit.BBU:Baseband Unit,CPRI:Common Public Radio Interface,Interface,eCPRIeCPRI:enhance CPRI,:enhance CPRI,RoERoE:Radio over Ethernet:Radio over EthernetTypical Cell SiteBRKSPG-21338 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveRAN Fronthaul StandardsEvolving towards Open
9、 RAN Standard for Radio over Ethernet&NGFI(IEEE 1914.1/3)Time Sensitive Networking TSN Profiles 802.1CM,Frame Preemption 802.1QbuCPRIeCPRIRoEOpen RAN Common Public Radio Interface enhanced Common Public Radio Interface O-RAN Alliance(Open RAN)Driving towards open standards for RAN Interfaces Open fe
10、ature developmentReduced time-to-marketIncubation of ecosystem innovationEthernet basedSplit 7Ways to carry Radio over EthernetTDM basedSplit 8Standard Fronthaul interfaceSplit 7.2xBRKSPG-21339 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveRAN Transport Architecture Opti
11、onsMobile coreMobile coreMobile coreMobile coreCloud RANCloud RAND D-RANRAN(MidhaulMidhaul)C C-RANRAND D-RANRAN Higher Speed Interfaces Lower Latency More Precise Timing&Synchronization Any-to-Any ConnectivityRRHBBURRHDUvCURRHvDU/DUvCUBackhaulBackhaulBackhaulBackhaulFronthaulFronthaulMidhaulRRH10ms1
12、-25ms75us/100 us(LTE)160us(5G NR)MidhaulMidhaulFronthaulFronthaulBackhaulBackhaulInterface(s):Typical distance:1-way latency:10G/25G/100G/200G10KM 10G/25G/100G10KM10G/25G/100G/200GTypical distance:1-way latency:Interface(s):Typical distance:1-way latency:BBUHotelMidhaulInterfaces:CSRCSRCSRCSR1Km of
13、fiber=5 us 1Km of fiber=5 us BRKSPG-213310Cisco 5G Converged SDN Transport SolutionRequirements and Architecture 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveWhats Different in 5G?New requirements on transport networkExplicit Requirements5G RAN(Sub-6Ghz,mmW)+5G Services
14、(eMBB,URLLC,mMTC)Disaggregation and Virtualization of RAN and CoreImplicit Requirements Bandwidth and scale Low latency Precise timing and sync Flexible service placement Network slicing Re-architect the network(MEC)Operational efficiency Simplification Any to any connectivity Reliability and awaren
15、essBRKSPG-213313 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveRAN and 5G Core InterfacesAUSFUDMAMFSMFPCFAFN5N5N7N7N11N11N12N12N8N8N10N10N13N13N3N3UPFCURUDUF1F1C/UC/UF2F2C/UC/UControl PlaneInternetData NWCURUDUF1F1C/UC/UF2F2C/UC/UN3N3XnXn(C/U)(C/U)N9N9N6N6N4N4N14N14N15N1
16、5N2N2E1E1C/UC/UE1E1C/UC/UUE1UE2N1N1Data PlaneF2:RU to DU-many to 1 relationshipF1:DU to CU-many to 1 relationshipSite1Site2All interfaces are mandatory IP based IP based(except F2 where its optional)There is a complex set of networking requirements between different 5G components1 to 1,1 to many,man
17、y to many Same component may need to support all models concurrentlyBRKSPG-213314 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveCiscos 5G Converged SDN TransportReduce Infrastructure Costs and Simplify OperationsCrosswork Network ControllerEnd-to-end IP with SR/BGP VPNIO
18、S-XRCPECPEAccessAccessTransportTransportCore+CloudCore+CloudServicesServicesConverged Infrastructure for Converged Infrastructure for all Servicesall ServicesCommon Common Technology Technology EndEnd-toto-end:SR aend:SR and BGP nd BGP VPNVPNOpen,ProgrammableOpen,ProgrammableSDNSDN-basedbasedClockin
19、g&SynchronizationOnOn-prem&prem&CloudCloud-based based(Hybrid Cloud)(Hybrid Cloud)OnOn-prempremNCS5xx/NCS57xx/NCS55xx/ASR9K/8000Cisco architecture is validated as per O-RAN WG-9“PacketPacket Switched xHaul architecture and solutions”FronthaulFronthaulMidhaulMidhaulBackhaulBackhaulBRKSPG-213315 2023
20、Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLivePacket-Based FronthaulAs optimal solutionDUOption 7-2 MuxStat-muxing opportunityDUWDMWDMOptical Multiplexing(Passive or Active DWDM)PacketOpticalStat Mux AdvantagesTopology IndependentScalable E2E Converged IPService Visibility&Tr
21、ansparencyCost EffectiveOptical multiplexingPoint-to-point,topology dependentNonscalable,architecturally rigidLimited service visibilityCapex dependent scaleBRKSPG-213316 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLive Standard for Radio over Ethernet&NGFI(IEEE 1914.1/3)T
22、ime Sensitive Networking TSN Profiles 802.1CM,Frame Preemption 802.1QbuDifferent types of fronthaul InterfacesHow do we deal with legacy interfaces in a packet-based network?CPRIeCPRIRoEOpen RAN Common Public Radio Interface enhanced Common Public Radio Interface O-RAN Alliance(Open RAN)Driving towa
23、rds open standards for RAN Interfaces Open feature developmentReduced time-to-marketIncubation of ecosystem innovationEthernet basedLegacyTDM basedBRKSPG-213317 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveBrownfield C-RAN deploymentsOptions for CPRI in a packet-based n
24、etwork:Fronthaul Gateway Interworking FunctionCPRI over EthernetBRKSPG-213318 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveFronthaul Gateway Interworking FunctionStandard based solution to integrate legacy interfacesIWFO-DUNon O-RAN InterfaceFronthaul GatewayOpen Interf
25、aceExample:CPRIProprietary eCPRIFronthaul gateway(FHGW)is a RAN function that converts non-ORAN interface to O-RAN 7.2.x Interface(CPRI to eCPRI conversation)ORAN Alliance defined IWF and Open FHGW Hardware Platform specification as part of ORAN Alliance working group 7 ORAN.WG7.HRD.0-v02.00.pdf Exa
26、mple:ORAN 7.2x eCPRICPRI to CPRI to eCPRIeCPRIBRKSPG-213319 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveFronthaul Gateway Interworking FunctionDeployment models and benefitsCPRIO-DUCPRI to eCPRIMidhaulDU at far edgePacket FronthaulCPRIMidhaulCPRI to eCPRIO-DUO-CUBackha
27、ulDU at cell-siteFHGWOpen PlatformOpen SW APIsEnables Unified Architecture for Brownfield RANOptimizes Transport Bandwidth by:9XImproved Brownfield Network TCO*24%*As per TCO done for an operatorBRKSPG-213320 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveFronthaul Gatewa
28、y on Cisco NCS540-FHPrototype and demonstrationSignal AnalyzerReference CPRI RURx+TxCSR with CSR with FHGW FHGW CPRIOption 5UXA N9040BNCS540-FHORAN Studio(DU emulator)eCPRI7.2xeCPRI7.2xMulti-hop Packet TransportT-GMNCS54010G 10G eCPRI to CPRIFronthaul Gateway:software function running as container o
29、n NCS540-FHTested with Barthi Airtel as part of ORAN Plugfest in India Nov 2021(1)Demonstrated at Mobile World Congress Barcelona 2022(2)4.5Gbps of CPRI 0.5Gbps of eCPRI traffic(1)https:/www.o-ran.org/blog/o-ran-global-plugfest-2021-demonstrates-stronger-ecosystem-and-maturing-solutions(2)https:/ 20
30、23 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveBased on IEEE 1914.3 Standard for Radio over Ethernet Encapsulations and MappingsDeployment Modes:RoE Structure-Agnostic Tunneling Mode(Type 0)Compatible with all RAN suppliers equipment Tested with Huawei,Ericsson and Samsung
31、radioRoE Structure-Agnostic Line Code Aware Mode(Type 1)Tailored with RAN vendor specific CPRI information to reduce fronthaul bandwidth by 20%.Tested with Huawei radioFronthaul:CPRI over EthernetRadio over Ethernet Structure Agnostic Modes(Type 0&Type 1)CPRICPRI BBUPacket FronthaulCPRI over Etherne
32、t for CPRI CRAN deploymentTunnel CPRIwithin RoE MapperCPRIRoE MapperMapper/de-MapperMapper/de-MapperUp to 20Km distance100us LatencyBackhaulBRKSPG-213322 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveCPRI over Converged Packet FronthaulHow can we optimize transport perfo
33、rmance for multiple services?CPRICPRI BBUTunnel CPRIwithin RoE MapperCPRIRoE MapperMapper/de-MapperMapper/de-MapperBackhaulEthernetIP100us LatencyMultiple services(Mobile,Residential,Business VPN)on a common transport networkDifferent applications may have different packet sizeHow can we meet the st
34、rict latency requirements for 5G services at the Fronthaul?ConvergedConverged Packet FronthaulBRKSPG-213323 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveTime Sensitive Networking IEEE 802.1CMEthernet for FronthaulProfile A:Strict priority queuing(no frame pre-emption)Ra
35、dio data payload frame size max is 2000,C&M max is 1500 octetsIQ data traffic belongs to strict priority traffic class-strict priority algorithmC&M data assigned to lower priority than IQ dataProfile B:IEEE 802.1Qbu Frame PreemptionPre-emption useful to avoid restrictions on the maximum frame sizeFr
36、ame Preemption up to 25G linksIQ data traffic configured(frame pre-emption status)as“express”C&M data assigned to lower priority than IQ data and set“pre-emptable”BRKSPG-213324 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveCPRI over Converged Packet FronthaulIEEE TSN:802
37、.1Qbu,Frame Preemption TechniqueCPRICPRI BBUTunnel CPRIwithin RoE MapperCPRIRoE MapperMapper/de-MapperMapper/de-MapperBackhaulEthernetIP100us LatencyIEEE 802.1Qbu with Strict Priority+Preemption offers lowest fronthaul latency and greatest BW utilizationRequired on uplink 10G or 25G interfacesIts bo
38、ok ended,hardware solutionConvergedConverged Packet FronthaulIn In-Out OutHP Packet SizeHP Packet SizeLP Packet SizeLP Packet Size802.1bu(w Frame Preemption)802.1bu(w Frame Preemption)No 802.1bu(wo Frame Preemption)No 802.1bu(wo Frame Preemption)HP Latency(us)HP Latency(us)HP Jitter(us)HP Jitter(us)
39、HP Latency(us)HP Latency(us)HP Jitter(us)HP Jitter(us)10G10G-25G25G1500(eCPRI)1500(eCPRI)9K(Enterprise)9K(Enterprise)17.67717.677(Saving of 4.34 us)(Saving of 4.34 us)3.243.2422.02122.0214.544.54Saving of 4.34 us=1Km fiber or 1Saving of 4.34 us=1Km fiber or 1-Router hop delayRouter hop delayHP:High
40、PriorityBRKSPG-213325Architecture principles and components 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveCiscos 5G Converged SDN TransportReduce Infrastructure Costs and Simplify OperationsCrosswork Network ControllerEnd-to-end IP with SR/BGP VPNIOS-XRCPECPEAccessAccess
41、TransportTransportCore+CloudCore+CloudServicesServicesConverged Infrastructure for Converged Infrastructure for all Servicesall ServicesCommon Common Technology Technology EndEnd-toto-end:SR aend:SR and BGP nd BGP VPNVPNOpen,ProgrammableOpen,ProgrammableSDNSDN-basedbasedClocking&SynchronizationOnOn-
42、prem&prem&CloudCloud-based based(Hybrid Cloud)(Hybrid Cloud)OnOn-prempremNCS5xx/NCS57xx/NCS55xx/ASR9K/8000Cisco architecture is validated as per O-RAN WG-9“PacketPacket Switched xHaul architecture and solutions”FronthaulFronthaulMidhaulMidhaulBackhaulBackhaulBRKSPG-213327 2023 Cisco and/or its affil
43、iates.All rights reserved.Cisco Public#CiscoLiveKey principle:simplification at all layers28SimplifiedTransport SimplificationUnified forwarding with Segment Routing+SR-PCEService SimplificationBGP based VPN for unified service deliveryOperational Simplification Ease of UseIOS-XR end-to-end,Crosswor
44、k,NSO,Yang suiteBRKSPG-213328 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLive50%Faster Boot Times40%SmallerImage Sizes 40%Faster Download50%Less Memory FootprintSimple Optimized to reduce memory,downloads,and boot times Streamlined protocols with SR/EVPN,Telemetry Secure
45、zero-touch rolloutModern Open APIs Customizable software images Cloud-enhancedTrustworthy Assess hardware and software authenticity at boot and runtime Immutable record of all software and hardware changes Real-time visibility of trust postureCisco IOS XR 7:single OS end to endRedefining software fo
46、r better operations29BRKSPG-2133 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveWhy Segment Routing for Transport?Network Resiliency Network Resiliency TI-LFA and automated 50ms protectionSimplified Operations Simplified Operations Easy to operate the networkGranular and
47、simple TEGranular and simple TEDynamic and efficient provisioning of custom traffic pathsNetwork SimplificationNetwork SimplificationEliminate LDP,RSVP and other protocolsSimplified Service Creation Simplified Service Creation Easily configure L2VPN and L3VPN servicesScalable Network SlicingScalable
48、 Network SlicingFaster creation,adaptation and deletion of slices at scaleStandards Based Standards Based No vendor lock-inAnyAny-toto-any Connectivityany ConnectivityFlexible any-to-any connectivityBRKSPG-213330 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLive31The value
49、of Cell Site Router in AccessBRKSPG-2133Multi Services supportGreen field and brown fieldMulti deployment models:Point-to-point,ring,etc.Programmable paths and SLAScalabilitySecure ZTPRich streaming TelemetryCleaner timing distributionEnhanced redundancyBusinessCell Site Router2G,3GPre-Aggregation 2
50、023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLive5G RAN Resiliency with Segment RoutingCase Study:Packet-based fronthaul networkeCPRIeCPRINCS 540NCS 540NCS 540NCS 540E/6630E/66305G BBU5G BBUPrimary PathTI-LFA Backup PathE/NR 6488E/NR 6488E/NR 6488E/NR 648880 MHz80 MHzChannel
51、 BWChannel BWUL/DLUL/DLUEUEVoIP Voice CallVoIP Voice CallCall RunCall Run-Time:37 MinTime:37 MinCall never went down during fiber cutCall never went down during fiber cutPrePre-AGGAGGPrePre-AGGAGGFronthaul Access RingFronthaul Access RingFronthaul network between Cisco NCS 540 and E/BBU is approx.14
52、kmThe setup was running eCPRI between E/NR Radios and BBUTI-LFA is enabled to provider protection against link failuresNo cell went down during the failure and convergence timeNo service issue or call drop observedBRKSPG-213332Transport Network Slicing 2023 Cisco and/or its affiliates.All rights res
53、erved.Cisco Public#CiscoLiveTransport Slicing for Service ExperienceGoal:to enable multi-services supportPriorities Wi-Fi Surveillance TrafficRoute low-latency premium service to nearest edge DCFWA Service GuaranteeFWAeMBBSurvellianceServiceseMBBPremium services e.g.GamingeMBBEnterprise Service Prio
54、ritizationEnterprise VPNseMBBTransport Slicing for Transport Slicing for service convergenceservice convergenceRAN Slicing for RAN Slicing for differentiated differentiated service experienceservice experienceBRKSPG-213334 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveTr
55、ansport Network SlicingScaleFlexibilityStrict SLAsSegment RoutingNumber of network elements&services+bandwidthAny-to-any connectivityEnd-to-end KPI assuranceBRKSPG-213335 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveCommon transport network and DC management and control
56、 planes Only Backhaul can be slicedMapping 5QI to DSCP only at backhaulO-RAN WG9:transport network slicing phase 1Shared(non sliced)control and management planeDedicated(sliced)user plane5GCOpen Fronthaul 7.2X U and C planesXn-u(per slice longer term)N4N1/2vO-CU-CPXn-cE1F1-cN97.2x M-planeE2 O1 Near
57、RT RICO-RUO-RUA1 vO-CU-UPF1-uUPFN3vO-CU-UPUPFN3N6vO-DUvO-CUUPFDedicated to each slice vO-CU-UPUPFN3N6N9N6N9Slice mgmtNon-RT RICFH mgmtO-RAN Management and control planes O-RAN and 3GPP User PlaneeMBBmMTCNB-IOTBRKSPG-213336 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveBo
58、th Backhaul and Midhaul can be slicedMapping 5QI to DSCP also at MidhaulO-RAN WG9:transport network slicing phase 2eMBBmMTCNB-IOTBRKSPG-213337 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveUnderlay Forwarding planesDifferent planes to provide different behavioursSmall nu
59、mber of forwarding planes defined in underlay:Services orientated(eMBB,URLLc,MMTc,circuit style services)Forwarding planes aims to support a set of behavioural characteristics:Delay,loss,topological constraints,subscription ratio,service type and characteristics,admission control Tools to build forw
60、arding planes:Segment Routing TE policies,Segment Routing Flex-algo,QoS and admission controlForwarding plane 1 packet-best effort Forwarding plane 2 packet-low latencyForwarding plane 3 Circuit style BRKSPG-213338 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveSegment Ro
61、uting Traffic Engineering PoliciesFor the same source/end-point different colors for different SLAE.g Green=Low Latency and Red=High BandwidthPolicy ColorColor designed to match BGP Ext.Community Ext.Community ColorColorExtended Community Color is specified in RFC 5512123645green,6red,6Low-latencyHi
62、gh BWBRKSPG-213339 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveSegment Routing Traffic SteeringMechanism on source router to steer trafficsteer trafficBy default traffic uses IGP pathCan steer traffic into a SR policy or specific Flex-algosDestination based Destination
63、 based Traffic Steering:destination onlyFlow based Flow based Traffic Steering:Destination+QoS criteria 20.20.20.0/24(standard)10.10.10.0/24(low delay)IGP pathDelay optimized path10.10.10.0/24 NH=7 color=GREEN20.20.20.0/24 NH=7RRDestination basedDestination basedIGP pathDelay optimizedTraffic for 10
64、.10.10.1 10.10.10.0/24EF=Low delay Everything else IGPFlow basedFlow basedRRTraffic for 10.10.10.1 10.10.10.1 NH 7 NH 7 and 20.20.20.1 20.20.20.1-NH 7NH 710.10.10.0/2420.20.20.0/2410.10.10.0/24 NH=7 color=BROWN10.10.10.0/24 FC120.20.20.0/24 FC0Ingress classification DSCP=EF FC=1 GreenDSCP=AFxx FC=0
65、IGP BRKSPG-213340 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveSegment Routing IGP Flexible AlgorithmNew Prefix-Segments with specific optimization objective and constraintsminimize igp-metric or delay or te-metricavoid SRLG or affinityEach node MUST advertise Flex-Algo
66、(s)that it is participating inEach node MUST have the definition of the Flex-Algo(s)that it is participating ine.g.ALGO 128:minimize on IGP metric and avoid TE affinity REDLocal configuration7026381459Alg128Alg129Nodes 0 and 9 participate to Algo 0 and 128 and 129Nodes 1/2/3/4 participate to Algo 0
67、and 128Nodes 5/6/7/8 participate to Algo 0 and 129BRKSPG-213341 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveMapping services to forwarding planesMultiple tools to provide flexibility and scaleForwarding behaviours with SR policies,FlexAlgo,QoS and admission controlN:1
68、Many VPNs to 1 forwarding planeTraffic pushed into correct forwarding plane:Segment Routing ODN and Automated SteeringMonitoring transport and service layers(SR PM,etc.)VPN 2VPN 2Eth1VPN 2VPN 2Eth1Forwarding plane 1 best effort Forwarding plane 2 low latencyForwarding plane 3 Circuit styleVPN 1VPN 1
69、Packet services(O-RAN WG9)EVPN VPWS services for FH with priority queuingBGP L3 VPN for O-RAN 7.2X M-Plane BGP L3 VPNs for midhaul/backhaul control plane and user plane 4G and 5G Circuit Style services Controller computation with end-to-end b/w admission control and reservation BRKSPG-213342 2023 Ci
70、sco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveCrosswork Network ControllerSimplify operations and speed up the time to marketCCisco NSO+Cisco NSO+Core FunctionCore FunctionPacks Packs CrossworkData GatewayCrossworkOptimization EngineModelModel-based based Service&Service&Device
71、 Device ProvisioningProvisioningReal Time Network Real Time Network OptimizationOptimizationActive Topology&InventoryCrosswork Common UI&APIService Service InventoryInventoryServiceService-Oriented Transport Provisioning(SROriented Transport Provisioning(SR-TE)TE)Bandwidth OptimizationBandwidth Opti
72、mizationService Provisioning for L3VPN and L2VPNService Provisioning for L3VPN and L2VPNTopology&InventoryTopology&InventoryReal time network optimization Real time network optimization to meet SLAto meet SLAUse CasesMultivendorMulti-domain Physical and VirtualPath Computation Path Computation and P
73、rogrammingand ProgrammingSR-PCEData CollectionData CollectionCrossworkCrosswork Network ControllerNetwork ControllerExtended for Network SlicingBRKSPG-213343 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveCNC will support transport network slicingDesigned to simplify netw
74、ork slicing automationBuilding BlocksFlexAlgo,SR-TE supportQOS supportL2VPN/L3VPN enhanced NSO Function PacksSlice Creation AbstractionSimplified UI to abstract the Slice componentsSlice Template CatalogSlice LifecycleOverlay mapsKPI collection and Closed-Loop AutomationNetwork OptimizationBRKSPG-21
75、3344Timing and synchronization 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveTime Synchronization in 5G NetworksCell Synchronization RequirementsCoordinated Transmission and ReceptionApplication RequirementsTransmitter power ON/OFFChange Transmit/Receive modesAir propaga
76、tion timeIncrease throughput with Carrier Aggregation,Dual connectivityImprove performance with coordinate multipoint operation Positioning and TrackingTime-sensitive networking:Robot control or Autonomous VehiclesExtended RealityTDD TAE 3sTX Diversity/NB-IoTTAE 65nsPositioningTAE 100nsIntra Band Co
77、ntiguous130ns FR2,LTE260ns FR1Intra Band Non-Contiguous 260ns(FR2,LTE)3us(FR1)Inter Band CA260ns(LTE)3us(NR)Frequency Band AFrequency Band BFrequency Band AFrequency Band BFrequency Band AFrequency Band BTAE:Time Alignment Error3GPP TS 36.104,38.104BRKSPG-213346 2023 Cisco and/or its affiliates.All
78、rights reserved.Cisco Public#CiscoLiveTiming solution optionsPTP Telecom ProfilesPTP AwareNetworkPTP AwareNetworkPRTC/T-GMPTP AwareFronthaulPTP UnawareNetworkPTP UnwareNetworkPRTC/T-GMPTP AwareFronthaulPTP AwareNetworkPTP UnwareNetworkPRTC/T-GMPTP AwareFronthaulGNSST-BCT-BCT-BCT-BC-PT-BC-PT-BC-P/T-T
79、SC-PT-BC-A/T-TSC-AG.8275.1 G.8275.1 Full Path SupportFull Path SupportG.8275.2G.8275.2Partial Timing SupportPartial Timing SupportAssisted Assisted Partial Timing SupportPartial Timing SupportUse GNSS to correct network AsymmetryProfile InterworkingProfile InterworkingPRTC:Primary Reference Time Clo
80、ckT-TSC:Telecom Time Slave ClockT-GM:Telecom GrandmasterT-BC:Telecom Boundary ClockT-BC-P:T-BC with partial supportT-TSC-P:T-TSC with partial supportG.8275.1 is the recommended timing solution for 5G servicesSupported across all Cisco routing portfolioBRKSPG-2133475G Transport in Hybrid Cloud Enviro
81、nment 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLive5G Transport in Hybrid Cloud Environment5G Converged SDN Transport is extended to support public cloudCell SitePhysicalCell Site RouterO-DUAggregation RouterCell SiteFronthaulFronthaulCentralized DUCentralized DUO-DU5G
82、O5G O-RURU5G O5G O-RURU5G O5G O-RURUPacket Fronthaul5G O5G O-RURUCell Site5G O5G O-RURU5G O5G O-RURUO-DU+vRoutervRouterOn x86 ServerSmall cell siteSmall cell siteDU at Cell siteDU at Cell sitePhysicalCell Site RouterMidhaulMidhaulvRoutervRoutervRoutervRouterCommon OS across Physical and Virtual depl
83、oymentsvRouter in the cloud:XRv9k as VNFXRd as CNFO-DUSegment Routing Segment Routing 5G Converged SDN Transport5G Converged SDN TransportO-CUPacket CoreControl Plane vCSR integrated with vDUserver for low bandwidth sitesBRKSPG-213349 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public
84、#CiscoLiveHybrid Cloud ArchitectureSome services move to the public cloudO-DUO-DUFronthaulMidhaulEdge DCMidhaulDXGWTransitGWO-CURegionalRegional5GCAZ1AZ1OSSBSSIMSRegion Region UPFO-CUUPFO-CUUPFCentralCentralAZ2AZ2AZ3AZ3EdgeEdgeEdgeEdgeEdgeEdgeUPFRegionalRegional5GCUPFRegionalRegional5GCUPFInternetIn
85、ternetCloud Cloud vRoutervRouterCloud Cloud vRoutervRouterCloud Cloud vRoutervRouterOnOn-Prem NetworkPrem NetworkCLOUDCLOUDCSP corporate IT moving to public cloudMost of the content delivery is part of public cloud5G RAN and 5GC services are part of Hybrid cloudBRKSPG-213350 2023 Cisco and/or its af
86、filiates.All rights reserved.Cisco Public#CiscoLiveHybrid Cloud ArchitectureBased on real customers deployment O-DUO-DUFronthaulMidhaulEdge DCMidhaul5G RAN&Core require connectivity for various services:Voice,Enterprise,Network slicing etc.L3 VPN,Anycast&BGP extension to VPCs Due to lack of IPv6 sup
87、port by hyperscalers GRE+SR MPLS GRE+SR MPLS is currently available option for overlay architecture.SRv6 SRv6 is the recommended option for the futureDXGWTransitGWO-CURegionalRegional5GC functionsAZ1AZ1OSSBSSIMSRegionRegionUPFO-CUUPFO-CUUPFRDC2RDC25GC functionsRDC3RDC35GC functionsCentralCentralAZ2A
88、Z3AZ3EdgeEdgeEdgeEdgeEdgeEdgeInternetInternetCLOUDCLOUDGRE+SR MPLSGRE+SR MPLSSR MPLSBRKSPG-213351 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveCell Site with Cloud Native RoutingAlternative model for small cell sitesMidhaulO-DU+vRouterO-CUBackhaulSingle box solution:vCS
89、R(Cisco Xrd)and O-DU hosted on the same x86 server Cisco Cisco XrdXrd is a Software based router running into containersCloud native routing helps optimize inventory and power at low-bandwidth cell siteSuitable for small cell sites requiring low throughputMidhaulO-DUO-CUBackhaulTwo boxes solution:Ph
90、ysical Cell site Routerx86 Server hosting O-DUSuitable for any size of cell sitesTraditional Cell siteCloud Native Cell siteCell Site Routerhttps:/ 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveCisco Cloud Native Router(Xrd)Cisco IOS-XR and Management DPDK/VPP based forw
91、arding Kubernetes compliant Light footprint on x86 compute Suitable for Cloud native environments Routing function at low-bandwidth cell site Physical CSR Feature paritySoftware based router to run on x86Solution for Cloud native deploymentsCPU CoresCPU Cores2 physical cores:1 for control plane;1 fo
92、r dataplane(*)MemoryMemory11 GiB:8 GiB regular memory+3 GiB huge pages(*)DiskDisk7 Gb(*)Boot timeBoot time2 mins(to BGP convergence)Latency50us via vRouter CNFPerformanceIntel Ice Lake CPU 3.5 GHz turbo,Packet size 1514 bytes 56 Gbps IPv4 Only 47 Gbps Customer config(L3 VPN,SR/MPLS,ECMP VLAN with eg
93、ress QoS)*CPU may require hyperthreading for control plane stability*11 GiB provides equivalent memory to NCS5408 GiB is minimum to boot Real configuration expected to be 10 GiB*Includes provision for logs and other operational data;in most cases usage=2GbFor YourReferenceBRKSPG-213353Conclusion 202
94、3 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveWhy Cisco for xHaul transport?Converges multiple services while optimizing costs and resourcesProvides flexible and scalable transport network slicing with Segment Routing toolsAllows for seamless deployments of cloud-native fun
95、ctions within hybrid cloud environmentsSupports brown-field C-RAN deployments with CPRI over Ethernet and Fronthaul Gateway Interworking functionBRKSPG-213355 2023 Cisco and/or its affiliates.All rights reserved.Cisco Public#CiscoLiveReferencesCisco 5G Transport page: SDN Transport design:https:/xrd
96、ocs.io/design/blogs/latest-converged-sdn-transport-hldSegment Routing:http:/www.segment- Alliance Specifications:https:/www.o-ran.org/specificationsBRKSPG-213356 2023 Cisco and/or its affiliates.All rights reserved.Cisco PublicRecommended Cisco Live US 2023 SessionsBRKSPGBRKSPG-23152315 Cloud-Ready
97、Converged SDN TransportBRKSPGBRKSPG-22632263 Design,Deploy and Manage Transport Slices using SDN Controller and Assurance-BRKSPGBRKSPG-30503050 Synchronizing 5G Mobile NetworksBRKMPLBRKMPL-22032203 SRv6 Fundamentals BRKMPLBRKMPL-22532253 EVPN Deep Dive with IOS-XR Configuration examples for Service
98、Provider Metro and Data Center BRKSPG-213357 2023 Cisco and/or its affiliates.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)!These poi
99、nts help you get on the leaderboard and increase your chances of winning daily and grand prizesAttendees will also earn 100 points in the Cisco Live Challenge for every survey completed.BRKSPG-213358 2023 Cisco and/or its affiliates.All rights reserved.Cisco PublicContinue your educationVisit the Ci
100、sco Showcase for related demosBook your one-on-oneMeet the Engineer meetingAttend 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#CiscoLi
101、ve61Gamify your Cisco Live experience!Get points Get points for attending 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:123461 2023 Cisco and/or its affiliates.All rights reserved.Cisco PublicBRKSPG-2133#CiscoLive