Cisco Silicon One：通过 P4 计划统一网络转发.pdf

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1、Cisco Silicon One:Unifying Network Forwarding with P4 ProgrammabilityAnand Sridharan,Distinguished Engineer10/13/25 2025 Cisco and/or its affiliates.All rights reserved.Omnipresent Silicon One Architecture Service provider coreSP access/EdgeHyperscalerFront endEnterprise Networking/Converged accessE

2、nterprise DatacenterQ,P seriesQ,G seriesG seriesQ,G,E seriesA,K,P seriesQ,A,K seriesHyperscalerScale out networks 2025 Cisco and/or its affiliates.All rights reserved.Features by MarketBridge,Route,SPAN,Telemetry,CoPP,ACL,QoS802.1X,NATTrust PolicyWCMP,DLB,UVC,PFC,ECNMPLS,VPN,VPLS,PW,MetersVxLAN,PVLA

3、N Flow trackingOG ACLGREEnterpriseData centerService providerSRv6 2025 Cisco and/or its affiliates.All rights reserved.NPU ArchitecturesFIXEDPROGRAMMABLE PIPELINERUN TO COMPLETECPU ARRAYUltra Low latencyLow latencyLow latencyHigh latencyPacket per clockPacket per clockPacket per clockPacket per N cl

4、ocksInflexibleFlexibleFlexibleFlexibleFixed capacityFixed capacityRun to completeRun to completeRTLP4P4P4P4P4P4CCCCCCCCC 2025 Cisco and/or its affiliates.All rights reserved.Network Processor Overview(NPU)DatabasesDatabasesTransmit NPUQueuing and SchedulingParserReceiveParserTransmitPacket Edit Rece

5、ive NPUConnectivityTCAMDirectTableHashTableLongest Prefix MatchConnectivityTCAMDirectTableHashTable 2025 Cisco and/or its affiliates.All rights reserved.Programmability infrastructureP4 programP4 compilerParseTransformPlaceHL Driver(API)P4 DriverLL DriverSilicon One SoCDevice SimulatorIOS-XR,IOS-XE,

6、NxOS,SONiC,FBOSS 2025 Cisco and/or its affiliates.All rights reserved.NPU HostRx NPU-0Rx NPU-nTx NPU-0Tx NPU-nNPU Host NPU Host is a special programmable IP capable of running high bandwidth applications such as BFD,IPM,CFM.NPU host is built with identical component from the NPUs like Parser,Match-a