HC2022.Juniper.ChangHong_Wu.v03.pdf

1、 2022 Juniper Networks1Juniper PublicRepresenting the Express 5 Development TeamHot Chips 2022Junipers Express 5:A 28.8Tbps Network Routing ASIC and VariationsChang-Hong Wu 2022 Juniper Networks2Juniper PublicThis presentation describes the intended capabilities of Junipers silicon.No commitment is

2、made or implied on delivering these features or products,which are subject to change at any time without notice.No purchasing decision should be made contingent upon Juniper Networks delivering any feature or functionality depicted in this presentation.Disclaimer 2022 Juniper Networks3Juniper Public

3、What is Express 5?2022 Juniper Networks4Juniper PublicRoutersSwitchesLayer 3 DevicesLayer 2 DevicesDeep Packet BuffersShallow Packet BuffersHigh Logical ScaleLow Logical Scale 2022 Juniper Networks5Juniper PublicJuniper Routing ASICsMultiple Packet Processing EnginesRun-to-CompletionFlexibility/Logi

4、cal Scale/ML EnabledProgrammable PipelineBandwidth and Energy EfficiencyTrio ASICs for MXExpress ASICs for PTXLatest generation:Trio 6Latest generation:Express 5 2022 Juniper Networks6Juniper PublicExpress 5 Goals 2022 Juniper Networks7Juniper PublicScale OutScale UpUsing Many Small-Form-Factor Syst

5、emsUsing Fewer Large Modular Systems 2022 Juniper Networks8Juniper PublicScale Out:Why 28.8Tbps Single ASIC for Express 5?And not 19.2Tbps36 Pluggable Optical Cages Fit in Standard 19 Racks36 x 800Gbps=28.8TbpsCommon Radix:32 or 36 2022 Juniper Networks9Juniper PublicScale Up:Modular ChassisBuilt us

6、ing internal fabricconnected componentsExample:16 Line Cards x 28.8Tbps per Line Card=460.8TbpsOr 4608 x 100GbE portsPFE ASICPFE ASICPortsLine CardFabric CardFabric ASICFabric ASICFabric ASICLine CardsFabric Cards(not visible in the back)2022 Juniper Networks10Juniper PublicPacketsPacketslightly loa