《网络培训教材》PPT课件.ppt
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1、四川电信CRS-1培训教材,四川电信思科NOS服务组,目录,CRS-1介绍CRS-1 IOS-XR介绍CRS-1 IOS-XR基本配置CRS-1 IOS-XR 软件安装介绍CRS-1 IOS-XR 安全配置CRS-1 IOS-XR 路由协议配置CRS-1 IOS-XR RPL配置介绍,Cisco CRS-1 Routing System-Overview,Next Generation Core40 Gbps routingMultishelf scaleFoundation for core consolidation,CRS-1,Cisco CRS-1 System Configurati
2、ons,Single Shelf System8 or 16 MSC and PLIM slotsNo Fabric chassis required4 or 8-Fabric cards in line card chassis,Multishelf System(1.2T TO 92T)2 to 72 16-slot line card chassis1 to 8 fabric chassis,Cisco CRS-1 Multishelf Systems,Switch FabricFiber cables are used to interconnect LC through SFCInt
3、erchassis management system control plane traffic does not pass through fiber cables,Cisco CRS-1 Line Card Chassis,CRS-1 8-slot,CRS-1 16-slot,Cisco CRS-1 Interfaces,PLIMs16-port OC-48c/STM-16c POS/DPT4-port OC-192c/STM-64c POS/DPT1-port OC-768c/STM-256c POS/DPT8-port 10 Gigabit EthernetSPA Interface
4、 Processor-8008-port Gigabit Ethernet SPA4-port OC-3c/STM-1c POS SPA1-Port OC-192c/STM-64c POS SPA,CRS-1 16-slot Line Card Chassis,Midplane design with front&rear accessFront16 PLIM slots2 RP slots+2 Fan ControllersBack 16 MSC Slots8 Fabric cardsDimensions:23.6”W x 41*”D x 84”H(60 W x 104.2 D x 213.
5、36H(cm)Power:13.2 KW(AC or DC)Weight:1600 lbs/723kgHeat Dis.:41000 BTUs,PLIM Side Components,1,2,3,4,5,MSC Side Components,1,2,3,4,5,6,CRS-1 16 Slot Cable Management(for print),Cable-management bracket has telescoping feature that allows bracket to be extended when chassis is upgraded with higher-de
6、nsity cards.,CRS-1 16 Slot Cable Management,Cable-management bracket has telescoping feature that allows bracket to be extended when chassis is upgraded with higher-density cards.,CRS-1 16 Slot Cable Management,Cable-management,CRS-1 16 Slot Line Card Chassis Slot Numbering,Line Card Chassis Power S
7、ystem-Overview,Power System is fully redundant and is comprised of:AC or DC power shelves3 AC 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,Power Architecture,Power system archit
8、ecture 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
9、zoneSame architecture used for both AC and DC powered line card chassisThree different types of power shelves;DC,AC Wye and AC Delta,Power Distribution(For Print),Power Distribution,Power Shelf/Load Zones,Line Card Chassis Load Zones(use for print),Line Card Chassis Load Zones,CRS-1 16-Slot DC Power
10、 System-Overview,DC 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 replaceableEach PEM has its own circuit breakerAlarm
11、modulePower distribution connections and wiringPower shelf installs in chassis from the front and plugs into chassis power interface connector panel,DC Power Shelf Input Connectors,Grnd 6 Input Connectors,DC Power Shelf Architecture,DC PEM,LEDs,DC PEM Status Monitoring,The Power Shelf service proces
12、sor circuitry monitors the following DC PEM fault and alarm conditions:FaultDC input failCircuit breaker tripOver temperaturePEM presentVoltage and current monitoring signals,DC PEM Status Indicators&Meanings,Alarm Module,Ext.Alarm connectorLED IndicatorsAlpha Indicators,Alarm Module Functions,The a
13、larm module performs the following functions:Alarm outputs for both LEDs and relay LEDsAlphaRelayAlarm Relay connector is DA-15SOnly SELV circuits connect to Alarm ModulePEM or AC Rectifier Status MonitoringAlarm monitoring,Status Monitoring,Alarm module responsible for monitoring AC rectifiers or D
14、C PEMs plugged into the power shelf it sharesThe monitored parameters include:Circuit Breaker Tripped conditionsPower GoodPower FailInternal FaultOver Temp conditionsAC rectifier or PEM presenceVoltage and current output levelsHas a backup power connection to the neighboring power shelf,CRS-1 16-Slo
15、t 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 filterInlet and outlet air vents an
16、d bezelsImpedance carriers for empty chassis slotsPower module cooling fans,Line Card Chassis Airflow,Fan 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 te
17、mperature sensors on modules and cardsIs redundant from both a power and cooling standpointSupports a redundant load-sharing design that contains:Two fan trays,each containing nine fansTwo fan controller cardsControl software and logicThere are four normal operating fan-speeds,plus one high-speed se
18、tting used when a fan tray has failed.,Line Card Chassis Fan Tray,The two fan trays:Are interchangeablePlug into the rear of LC chassisEach line card chassis fan tray contains:Nine fansA front-panel status LED,Status,Status LED,Line Card Chassis Fan Controller Card,BITs/SETsExt.Clk 1,BITs/SETsExt.Cl
19、k 2,Status LEDs,Fan Controller Card Operation,Fans run at 4300 to 4500 RPM at initial power upFan control software 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 minimiz
20、es inrush current during hot swap or OIR,Cooling 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
21、)to fail without impacting routing system or line card chassis availability,Thermal Sensors,Thermal sensors on each board in system monitor temperatures throughout chassisThree types of sensors in the chassis:InletExhaustHot spotAny sensor can send a thermal alarmWhen thermal alarm occurs fault cond
22、ition passed to SP on each fan controller board for control software to takes appropriate action,Fan Control Redundant Power,Each 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”b
23、us on one fan controller card and from“B”bus on second fan controller card Two DC-to-DC converters,one on each fan controller card,control a single fan,S123 Switch Fabric Card,PLIM,PLIM,MSC,MSC,Ingress,Egress,IP Data,IP Data,Linecard Chassis,Switch Fabric Card,1 of 8,S2,S2,S3,S3,S1,S1,S123 Switch Fa
24、bric 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 perform switching functions and are programmed at sys
25、tem startup by IOS XR fabric management softwareEach S123 switch fabric card contains two S1,two S2,and four S3 elements.,S123 Functional Blocks,Slots 0-7Ingress from MSCsSlots 8-17(To fabric),EgressToMSCs and RPS(From Fabric),Note:Slots 16&17 are the active and standby RPs,S123 Physical Overview,St
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