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1、 2005, Cisco Systems, Inc. All rights reserved.Cisco CRS-1 EssentialsVersion 2.0b四川電信四川電信CRS-1培訓教材培訓教材四川電信思科四川電信思科NOS服務組服務組 2005, Cisco Systems, Inc. All rights reserved.Cisco CRS-1 EssentialsModule 2/2Version 2.0b目錄目錄 CRS-1介紹介紹CRS-1 IOS-XR介紹介紹CRS-1 IOS-XR基本配置基本配置CRS-1 IOS-XR 軟件安裝介紹軟件安裝介紹CRS-1 IOS-X

2、R 安全配置安全配置CRS-1 IOS-XR 路由協(xié)議配置路由協(xié)議配置CRS-1 IOS-XR RPL配置介紹配置介紹 2005, Cisco Systems, Inc. All rights reserved.Cisco CRS-1 EssentialsModule 2/3Version 2.0bCisco CRS-1 Routing System - OverviewNext Generation Core 40 Gbps routing Multishelf scale Foundation for core consolidation CRS-1 2005, Cisco Systems

3、, Inc. All rights reserved.Cisco CRS-1 EssentialsModule 2/4Version 2.0bCisco CRS-1 System ConfigurationsSingle Shelf System8 or 16 MSC and PLIM slotsNo Fabric chassis required-4 or 8 - Fabric cards in line card chassisMultishelf System (1.2T TO 92T)-2 to 72 16-slot line card chassis-1 to 8 fabric ch

4、assis 2005, Cisco Systems, Inc. All rights reserved.Cisco CRS-1 EssentialsModule 2/5Version 2.0bCisco CRS-1 Multishelf SystemsSwitch FabricFiber cables are used to interconnect LC through SFCInterchassis management system control plane traffic does not pass through fiber cables 2005, Cisco Systems,

5、Inc. All rights reserved.Cisco CRS-1 EssentialsModule 2/6Version 2.0bCisco CRS-1 Line Card ChassisCRS-1 8-slotCRS-1 16-slot 2005, Cisco Systems, Inc. All rights reserved.Cisco CRS-1 EssentialsModule 2/7Version 2.0bCisco CRS-1 InterfacesPLIMs-16-port OC-48c/STM-16c POS/DPT-4-port OC-192c/STM-64c POS/

6、DPT-1-port OC-768c/STM-256c POS/DPT-8-port 10 Gigabit EthernetSPA Interface Processor-800-8-port Gigabit Ethernet SPA-4-port OC-3c/STM-1c POS SPA-1-Port OC-192c/STM-64c POS SPA 2005, Cisco Systems, Inc. All rights reserved.Cisco CRS-1 EssentialsModule 2/8Version 2.0bCRS-1 16-slot Line Card ChassisMi

7、dplane design with front & rear accessFront-16 PLIM slots-2 RP slots + 2 Fan ControllersBack -16 MSC Slots-8 Fabric cardsDimensions:23.6” W x 41*” D x 84” H(60 W x 104.2 D x 213.36H (cm)Power: 13.2 KW (AC or DC)Weight: 1600 lbs/723kgHeat Dis.: 41000 BTUs 2005, Cisco Systems, Inc. All rights reserved

8、.Cisco CRS-1 EssentialsModule 2/9Version 2.0bPLIM Side Components12345 2005, Cisco Systems, Inc. All rights reserved.Cisco CRS-1 EssentialsModule 2/10Version 2.0bMSC Side Components123456 2005, Cisco Systems, Inc. All rights reserved.Cisco CRS-1 EssentialsModule 2/11Version 2.0bCRS-1 16 Slot Cable M

9、anagement (for print)Cable-management bracket has telescoping feature that allows bracket to be extended when chassis is upgraded with higher-density cards. 2005, Cisco Systems, Inc. All rights reserved.Cisco CRS-1 EssentialsModule 2/12Version 2.0bCRS-1 16 Slot Cable ManagementCable-management brack

10、et has telescoping feature that allows bracket to be extended when chassis is upgraded with higher-density cards. 2005, Cisco Systems, Inc. All rights reserved.Cisco CRS-1 EssentialsModule 2/13Version 2.0bCRS-1 16 Slot Cable ManagementCable-management 2005, Cisco Systems, Inc. All rights reserved.Ci

11、sco CRS-1 EssentialsModule 2/14Version 2.0bCRS-1 16 Slot Line Card Chassis Slot Numbering 2005, Cisco Systems, Inc. All rights reserved.Cisco CRS-1 EssentialsModule 2/15Version 2.0bLine Card Chassis Power System - OverviewPower System is fully redundant and is comprised of:AC or DC power shelves3 AC

12、 rectifiers or DC PEMs per shelfAlarm modulesDual bus barsChassis midplaneSpecial components on cards or modules, like DC-to-DC converters, or ORing diodes or EMI filters 2005, Cisco Systems, Inc. All rights reserved.Cisco CRS-1 EssentialsModule 2/16Version 2.0bPower ArchitecturePower system archite

13、cture provides fully redundant AC or DC powerLine card chassis still operates normally if:One AC rectifier or DC PEM failsOne entire power shelf fails, or one bus bar failsFor system degradation to occur requires two failures: In both the A and B sides of power architecture that effect the same load

14、 zoneSame architecture used for both AC and DC powered line card chassisThree different types of power shelves; DC, AC Wye and AC Delta 2005, Cisco Systems, Inc. All rights reserved.Cisco CRS-1 EssentialsModule 2/17Version 2.0bPower Distribution (For Print) 2005, Cisco Systems, Inc. All rights reser

15、ved.Cisco CRS-1 EssentialsModule 2/18Version 2.0bPower Distribution 2005, Cisco Systems, Inc. All rights reserved.Cisco CRS-1 EssentialsModule 2/19Version 2.0bPower Shelf/Load Zones A0 A1 A2 AM0 B0 B1 B2 AM1Z1 Z2 Z3 Z4 Z5 Z6Z1 Z2 Z3 Z4 Z5 Z6PS0 (Power shelf)PS1 (Power shelf) 2005, Cisco Systems, Inc

16、. All rights reserved.Cisco CRS-1 EssentialsModule 2/20Version 2.0bLine Card Chassis Load Zones (use for print) 2005, Cisco Systems, Inc. All rights reserved.Cisco CRS-1 EssentialsModule 2/21Version 2.0bLine Card Chassis Load Zones 2005, Cisco Systems, Inc. All rights reserved.Cisco CRS-1 Essentials

17、Module 2/22Version 2.0bCRS-1 16-Slot DC Power System - OverviewDC power system provides 13,200 watts maximumTwo DC power shelves per chassis provides 2N redundancyEach DC power shelf houses:Input power connectorsIts own shelf circuit breakerThree DC power entry modules (PEMs)Each PEM is field replac

18、eableEach PEM has its own circuit breakerAlarm modulePower distribution connections and wiringPower shelf installs in chassis from the front and plugs into chassis power interface connector panel 2005, Cisco Systems, Inc. All rights reserved.Cisco CRS-1 EssentialsModule 2/23Version 2.0bDC Power Shel

19、f Input Connectors Grnd 6 Input Connectors 2005, Cisco Systems, Inc. All rights reserved.Cisco CRS-1 EssentialsModule 2/24Version 2.0bDC Power Shelf Architecture 2005, Cisco Systems, Inc. All rights reserved.Cisco CRS-1 EssentialsModule 2/25Version 2.0bDC PEM LEDs 2005, Cisco Systems, Inc. All right

20、s reserved.Cisco CRS-1 EssentialsModule 2/26Version 2.0bDC PEM Status MonitoringThe Power Shelf service processor circuitry monitors the following DC PEM fault and alarm conditions: FaultDC input failCircuit breaker tripOver temperaturePEM presentVoltage and current monitoring signals 2005, Cisco Sy

21、stems, Inc. All rights reserved.Cisco CRS-1 EssentialsModule 2/27Version 2.0bDC PEM Status Indicators & MeaningsNameColorFunctionPWR OKGreenThe PEM is operating normally with powerFaultYellowA fault has been detected in the PEMDC Input FailYellowDC input is out of range or is not being provided to t

22、he PEMOTYellowThe DC PEM is overheated and it has been shut downCB TripYellowThe input circuit breaker is in the off positionPower OKFaultDC Input FailCB TripOT 2005, Cisco Systems, Inc. All rights reserved.Cisco CRS-1 EssentialsModule 2/28Version 2.0bAlarm ModuleExt. Alarm connectorLED IndicatorsAl

23、pha Indicators 2005, Cisco Systems, Inc. All rights reserved.Cisco CRS-1 EssentialsModule 2/29Version 2.0bAlarm Module FunctionsThe alarm module performs the following functions: Alarm outputs for both LEDs and relay -LEDs-Alpha-Relay-Alarm Relay connector is DA-15SOnly SELV circuits connect to Alar

24、m ModulePEM or AC Rectifier Status MonitoringAlarm monitoring 2005, Cisco Systems, Inc. All rights reserved.Cisco CRS-1 EssentialsModule 2/30Version 2.0bStatus Monitoring Alarm module responsible for monitoring AC rectifiers or DC PEMs plugged into the power shelf it sharesThe monitored parameters i

25、nclude:-Circuit Breaker Tripped conditions-Power Good-Power Fail-Internal Fault-Over Temp conditions-AC rectifier or PEM presence-Voltage and current output levelsHas a backup power connection to the neighboring power shelf 2005, Cisco Systems, Inc. All rights reserved.Cisco CRS-1 EssentialsModule 2

26、/31Version 2.0bCRS-1 16-Slot Line Card Chassis Cooling System - Overview The complete line card chassis cooling system includes:Two fan traysTwo fan controller cardsTemperature sensors distributed on cards and modules in the chassisThe operating software that controls the cooling systemAn air filter

27、Inlet and outlet air vents and bezelsImpedance carriers for empty chassis slotsPower module cooling fans 2005, Cisco Systems, Inc. All rights reserved.Cisco CRS-1 EssentialsModule 2/32Version 2.0bLine Card Chassis Airflow 2005, Cisco Systems, Inc. All rights reserved.Cisco CRS-1 EssentialsModule 2/3

28、3Version 2.0bFan Control Architecture The fan control architecture:Controls fan speed to optimize cooling, acoustics, and power consumption for various chassis-heating conditionsMonitors the cooling system with temperature sensors on modules and cardsIs redundant from both a power and cooling standp

29、ointSupports a redundant load-sharing design that contains:-Two fan trays, each containing nine fans-Two fan controller cards-Control software and logicThere are four normal operating fan-speeds, plus one high-speed setting used when a fan tray has failed. 2005, Cisco Systems, Inc. All rights reserv

30、ed.Cisco CRS-1 EssentialsModule 2/34Version 2.0bLine Card Chassis Fan Tray The two fan trays:Are interchangeablePlug into the rear of LC chassisEach line card chassis fan tray contains: -Nine fans-A front-panel status LED StatusStatus LED 2005, Cisco Systems, Inc. All rights reserved.Cisco CRS-1 Ess

31、entialsModule 2/35Version 2.0bLine Card Chassis Fan Controller Card BITs/SETsExt. Clk 1BITs/SETsExt. Clk 2Status LEDs 2005, Cisco Systems, Inc. All rights reserved.Cisco CRS-1 EssentialsModule 2/36Version 2.0bFan Controller Card OperationFans run at 4300 to 4500 RPM at initial power upFan control so

32、ftware takes control of fan speed once the system is initialized (could take 3 to 5 minutes)Fan controller cards and fan trays have quick-shutdown mode to aide in OIRQuick-shutdown mode minimizes inrush current during hot swap or OIR 2005, Cisco Systems, Inc. All rights reserved.Cisco CRS-1 Essentia

33、lsModule 2/37Version 2.0bCooling System Redundancy The redundancy design in the cooling subsystem can tolerate:A single fan tray failureA single fan failureA single fan controller board failureA single fan cable failureA single power shelf, or a single power module (PEM or AC rectifier) to fail with

34、out impacting routing system or line card chassis availability 2005, Cisco Systems, Inc. All rights reserved.Cisco CRS-1 EssentialsModule 2/38Version 2.0bThermal Sensors Thermal sensors on each board in system monitor temperatures throughout chassisThree types of sensors in the chassis:-Inlet-Exhaus

35、t-Hot spotAny sensor can send a thermal alarmWhen thermal alarm occurs fault condition passed to SP on each fan controller board for control software to takes appropriate action 2005, Cisco Systems, Inc. All rights reserved.Cisco CRS-1 EssentialsModule 2/39Version 2.0bFan Control Redundant Power Eac

36、h fan controller card receives 48 VDC from individual load zones on midplaneEach load zone gets DC power from both the A and B power shelves. Upper fan tray powered from “A” bus on one fan controller card and from “B” bus on second fan controller card Two DC-to-DC converters, one on each fan control

37、ler card, control a single fan 2005, Cisco Systems, Inc. All rights reserved.Cisco CRS-1 EssentialsModule 2/40Version 2.0bS123 Switch Fabric Card PLIMPLIMMSCMSCIngressEgressIP DataIP DataLinecard ChassisSwitch Fabric Card1 of 8S2S2S3S3S1S1 2005, Cisco Systems, Inc. All rights reserved.Cisco CRS-1 Es

38、sentialsModule 2/41Version 2.0bS123 Switch Fabric Card S123 switch fabric card only used in single-chassis systemsMajor components of S123 switch fabric card are: Switch elements that perform switching functionsService processorPower modulesStatus LEDAlphanumeric displayS1, S2, and S3 elements perfo

39、rm switching functions and are programmed at system startup by IOS XR fabric management softwareEach S123 switch fabric card contains two S1, two S2, and four S3 elements. 2005, Cisco Systems, Inc. All rights reserved.Cisco CRS-1 EssentialsModule 2/42Version 2.0bS123 Functional Blocks 1234567Slots 0

40、-7Ingress from MSCsSlots 8-17(To fabric)EgressToMSCs and RPS(From Fabric)Note: Slots 16 & 17 are the active and standby RPs 2005, Cisco Systems, Inc. All rights reserved.Cisco CRS-1 EssentialsModule 2/43Version 2.0bS123 Physical Overview Status LEDAlpha 2005, Cisco Systems, Inc. All rights reserved.

41、Cisco CRS-1 EssentialsModule 2/44Version 2.0bRoute Processor (RP) Overview The RP combines system controller functionality with route processing capabilityEach 16-Slot Line Card Chassis contains two route processor (RP) cards that:One RP serves as the active master, while the other serves as the sta

42、ndby unitAre located in dedicated slots the front side of the chassis in the center of the lower PLIM card cageDistribute forwarding tables to the line cardsProvide a control path to each MSCProvide the system-monitoring functionsContain the hard disks for system and error logging 2005, Cisco System

43、s, Inc. All rights reserved.Cisco CRS-1 EssentialsModule 2/45Version 2.0bRP Front Panel and Memory OptionsMemoryModulesSMPCPUs 2005, Cisco Systems, Inc. All rights reserved.Cisco CRS-1 EssentialsModule 2/46Version 2.0bRP IDE hard drive:Used for storing debug info, such as, core dumps from RP or MSCs

44、Typically only active when neededHot-pluggable and sled mounted 2005, Cisco Systems, Inc. All rights reserved.Cisco CRS-1 EssentialsModule 2/47Version 2.0bPCMCIA Flash SlotsPCMCIA FlashEach RP provides two ATA type PCMCIA flash slots to store up to 1 GB storage systemsDisk0: is fixed and used for pe

45、rmanent storage of configuration and image files required for operation of OSDisk1: is an externally accessible media slot 2005, Cisco Systems, Inc. All rights reserved.Cisco CRS-1 EssentialsModule 2/48Version 2.0bRP Block DiagramFPGAFE/GEswitchMEMCTLCPUPCMCIA2IDETo fabricFrom fabricCPUIFQlinksLC FE

46、linksCTL GE linkCTL GE linkMidplanePCI123Aux and consoleManagement GE link56789410Card presence detectRP mastershipPROM presence 2005, Cisco Systems, Inc. All rights reserved.Cisco CRS-1 EssentialsModule 2/49Version 2.0bRP Block Diagram (Cont.)FPGAFE/GEswitchMEMCTLCPUPCMCIA2IDETo fabricFrom fabricCP

47、UIFQlinksLC FElinksCTL GE linkCTL GE linkMidplanePCI123Aux and consoleManagement GE link56789410Card presence detectRP mastershipPROM presence 2005, Cisco Systems, Inc. All rights reserved.Cisco CRS-1 EssentialsModule 2/50Version 2.0bRoute Processor (RP) Active and Standby Arbitration The active-sta

48、ndby arbitration algorithm performed by hardware and software:1.At chassis power up, each RP boots and runs self-tests.2.The RPs exchange messages with each other and with SPs on all other boards. Each RP examines its outgoing “Reset” lines to verify that they are inactive.3.Based on results of thes

49、e tests, each RP decides whether it is ready to become the active RP. If it is, it asserts “Ready” signal to its on-board arbitration unit that propagates “Ready” signal to other RP.4.Arbitration hardware chooses active RP. Hardware asserts “Active” signal to chosen RP, along with an interrupt and p

50、ropagates “Active” signal to other RP, which also receives an interrupt. If a tie, “Active” is RP in lower numbered slot. 5.Software on each reads its “Active” signal, and branches accordingly to “Primary” or “Standby” code.6.If active RP is removed, powered down, or voluntarily de-asserts its “Read

51、y” signal, standby RP immediately receives an asserted “Active” signal, along with an interrupt. 2005, Cisco Systems, Inc. All rights reserved.Cisco CRS-1 EssentialsModule 2/51Version 2.0b目錄目錄 CRS-1介紹介紹CRS-1 IOS-XR介紹介紹CRS-1 IOS-XR基本配置基本配置CRS-1 IOS-XR 軟件安裝介紹軟件安裝介紹CRS-1 IOS-XR 安全配置安全配置CRS-1 IOS-XR 路由協(xié)

52、議配置路由協(xié)議配置CRS-1 IOS-XR RPL配置介紹配置介紹 2005, Cisco Systems, Inc. All rights reserved.Cisco CRS-1 EssentialsModule 2/52Version 2.0bCisco IOS XR ArchitectureCisco IOS XR kernelDistributed infrastructureRoutingmodules(BGP, OSPF)Protocolmodules(IP)ApplicationmodulesRuns onmultiple CPUs 2005, Cisco Systems, I

53、nc. All rights reserved.Cisco CRS-1 EssentialsModule 2/53Version 2.0bHigh-Availability (HA) ComponentsKernelPlane separationFault tolerance and isolationCheckpoint support for process restartProcess-level redundancyRoute processor and Distributed RP failoverNonstop forwarding 2005, Cisco Systems, In

54、c. All rights reserved.Cisco CRS-1 EssentialsModule 2/54Version 2.0bKernelMemory-protection, message-passing, pre-emptiveModular software designAll basic OS and router functionality implemented as processesProcess model with separate, protected address spacesMicrokernel:ThreadsSchedulingDebugTimersM

55、essage queuesSynchronizationDistributed processingFile systemLightweight messagingEvent managementCISCOPOSIXApplications 2005, Cisco Systems, Inc. All rights reserved.Cisco CRS-1 EssentialsModule 2/55Version 2.0bPlane SeparationMicrokernelProcess mgmtIPC mech.Memory mgmt.H/W abstractionBGPRIPIS-ISOS

56、PFRouting PolicyPIMIGMPRIBL2 DriversACLFIBQoSLPTSHost ServicesPFIInterfacesData planeCLISNMPXMLNetflowAlarmPerf. Mgmt.SSHManagement planeControl planeControl PlaneBGPRIPIS-ISOSPFRouting PolicyPIMIGMPRIBL2 DriversACLFIBQoSLPTSHost ServicesPFIInterfacesData planeCLISNMPXMLNetflowAlarmPerf. Mgmt.SSHMan

57、agement planeControl planeControl PlaneBGPRIPIS-ISOSPFRouting policyPIMIGMPRIBL2 driversACLFIBQoSLPTSHost servicesPFIInterfacesData planeCLISNMPXMLNetflowAlarmPerf. mgmt.SSHManagement planeMemory-protected microkernel Distributed subsystems/processesSystem servicesControl plane 2005, Cisco Systems,

58、Inc. All rights reserved.Cisco CRS-1 EssentialsModule 2/56Version 2.0bFault Tolerance and Isolation (For Print)Layered rather than monolithic architectureFault isolation and protection between the planesCisco IOS XRDataplaneControlplaneManagementplane 2005, Cisco Systems, Inc. All rights reserved.Ci

59、sco CRS-1 EssentialsModule 2/57Version 2.0bFault Tolerance and IsolationLayered rather than monolithic architectureFault isolation and protection between the planesCisco IOS XRDataplaneControlplaneManagementplane 2005, Cisco Systems, Inc. All rights reserved.Cisco CRS-1 EssentialsModule 2/58Version

60、2.0bCheckpoint Support for Process RestartProcessCheckpoint shared memory storeUpdates of running stateNew instance of process(Process fails)Recover stateActive RP/DRP 2005, Cisco Systems, Inc. All rights reserved.Cisco CRS-1 EssentialsModule 2/59Version 2.0bProcess-Level RedundancyStandbyprocessAct