p Bcn Rnc Hw Description

WCDMARAN,Rel.RU50andRU50EP1,OperatingDocumentation,Issue05

MulticontrollerRNCHardwareDescriptionDN09116019Issue4-0

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MulticontrollerRNCHardwareDescription

2 DN09116019 Issue:4-0

TableofContentsThisdocumenthas57pages

1 Summaryofchanges..................................................................... 7 2 Introduction.................................................................................... 8 3 OverviewofBCNmodule...............................................................9 4 BCNhardwarearchitecture.......................................................... 114.1 BCNgeneralarchitecture............................................................. 114.2 EthernetswitchdomainandEthernetinterfacing.........................124.2.1 PhysicalstructureoftheEthernetswitchdomain........................ 124.2.2 ExternalEthernetinterfaces.........................................................134.3 Harddiskcontroller...................................................................... 134.4 USBinterface............................................................................... 144.5 Consoleaccesstoadd-incardprocessors.................................. 144.6 Externalalarminterface............................................................... 144.7 Synchronizationinterface.............................................................154.8 Add-incardarchitectureandinterfacing...................................... 154.9 AMCinterfacing............................................................................16 5 Hardwaremanagement................................................................185.1 HardwaremanagementatBCNmodulelevel..............................185.2 Hardwaremanagementatnetworkelementlevel........................195.3 DifferencesbetweencRNCandmcRNCHardwaremanagement...

20 6 IntroducingtheMulticontrollerRNC............................................. 256.1 OverviewoftheMulticontrollerRNC........................................... 256.2 MulticontrollerRNCarchitectureandblockdiagram...................256.3 Redundancyprinciples.................................................................26 7 Technicalspecifications,MulticontrollerRNChardware.............. 27 8 MulticontrollerRNCfunctionalunits............................................. 298.1 MulticontrollerRNCfunctionalunits............................................. 298.2 CellSpecificProcessingUnit(CSPU)..........................................298.3 CentralizedFunctionsProcessingUnit(CFPU)........................... 308.4 ExternalInterfaceProcessingUnit(EIPU).................................... 308.5 EthernetSwitching....................................................................... 308.6 UserEquipmentSpecificProcessingUnit(USPU)..................... 30 9 MulticontrollerRNCnetworkinterfaces........................................319.1 GigabitEthernetinterface............................................................ 329.2 Backplaneinterface......................................................................32 10 Configurationsanddimensioning.................................................33


Issue:4-0 DN09116019 3

10.1 GeneralaboutMulticontrollerRNCconfigurations.......................3310.2 MulticontrollerRNCcapacitysteps.............................................. 3410.2.1 MulticontrollerRNCcapacitystep1............................................. 3410.2.2 MulticontrollerRNCcapacitystep3............................................. 3510.2.3 MulticontrollerRNCcapacitystep7............................................. 36 11 Powerdistributionprinciples........................................................ 38 12 Mechanicsandelectromechanics................................................ 40 13 Cabinetandrelateditems............................................................ 4113.1 CAB216-Acabinetframe............................................................. 41 14 Hardwareitems........................................................................... 4314.1 Add-incards................................................................................. 4314.1.1 Processoradd-incard(BOC-A)................................................... 4314.1.1.1 MemorymoduleforBOC-Aprocessoradd-incard(BDM2G-A)......

4314.1.2 Add-infillercard(BFC-A)............................................................. 4314.1.3 Processoradd-incard(BMPP2-B)...............................................4414.1.3.1 MemorymoduleforBMPP2processoradd-incard..................... 4514.2 AMC............................................................................................. 4514.2.1 HarddiskdrivecarrierAMC(HDSAM-A)..................................... 4514.2.2 BCNAMCfiller(AMCSF-A)......................................................... 4614.3 Powersupplyanddistributionunits..............................................4714.3.1 ACpowerdistributionunit(BAPDU-A).........................................4714.3.2 DCpowerdistributionunit(BDPDU-A)........................................ 4814.3.3 ACpowersupplyunit,variantB(BAFE-B)...................................4914.3.4 DCpowersupplyunit,variantB(BDFE-B).................................. 5014.4 Fanunitsandairfilter..................................................................5214.4.1 Airfilter(BAFI-A).......................................................................... 5214.4.2 Mainfan(BMFU-A/BMFU-B)...................................................... 5214.5 BCNinstallationkit...................................................................... 5314.5.1 BCNinstallationkit-BIK216-A.................................................... 5314.5.2 BCNinstallationkit-BIKG1-A......................................................54 15 OverviewofcablinginBCN......................................................... 55 16 SFPandSFP+transceivers.........................................................57


4 DN09116019 Issue:4-0

ListofFiguresFigure1 BCNmodule(BCN-B)...........................................................................9Figure2 BacksideoftheBCNmodule...............................................................9Figure3 BCNhardwarearchitecture................................................................ 11Figure4 SAScross-sharingconnectionbetweentwoBCNmodules............... 14Figure5 Add-incardconnectivity..................................................................... 16Figure6 AMCbayconnectivity......................................................................... 17Figure7 Hardwaremanagement...................................................................... 18Figure8 Network-element-levelhardwaremanagement..................................20Figure9 MulticontrollerRNCmoduleArchitecture........................................... 25Figure10 Exampleofthephysicallocationoftheprocessingunitswithinone

module................................................................................................29Figure11 FrontpaneloftheMulticontrollerRNCmodule................................. 31Figure12 MulticontrollerRNCCapacitysteps....................................................33Figure13 MulticontrollerRNCcapacityStep1...................................................34Figure14 MulticontrollerRNCcapacityStep3...................................................35Figure15 MulticontrollerRNCcapacityStep7...................................................36Figure16 PowerdistributionwithPDUs............................................................. 38Figure17 PowerdistributionwithoutPDUs........................................................ 39Figure18 CAB216-Acabinetframe(emptyandfullyequippedwitheightBCN

modulesandtwoPDUs).....................................................................41Figure19 Processoradd-incard(BOC-A)..........................................................43Figure20 Add-infillercard(BFC-A)................................................................... 44Figure21 Processoradd-incardBMPP2-B........................................................45Figure22 HarddiskdrivecarrierAMC(HDSAM-A)........................................... 46Figure23 AMCfiller(AMCSF-A)........................................................................ 47Figure24 ACPDU(BAPDU-A)...........................................................................48Figure25 DCPDU(BDPDU-A).......................................................................... 48Figure26 ACPSU(BAFE-B)..............................................................................49Figure27 DCPSU(BDFE-B)............................................................................. 51Figure28 Airfilter(BAFI-A)................................................................................ 52Figure29 Mainfan(BMFU-A).............................................................................53Figure30 BIK216-A............................................................................................ 53Figure31 BIKG1-A............................................................................................. 54


Issue:4-0 DN09116019 5

ListofTablesTable1 BCNmoduletechnicaldata.................................................................. 9Table2 BCNmodulefrontpanelindicatorLEDs.............................................10Table3 HDDDifference/comparisontableformcRNCandcRNC..................20Table4 MulticontrollerRNCredundancymodels............................................ 26Table5 1GEinterfacespecificationsforexternalinterfaces........................... 32Table6 10GEinterfacespecificationsforexternalinterfaces......................... 32Table7 CAB216-Acabinetframetechnicaldata.............................................42Table8 BOC-Adimensionsandweight...........................................................43Table9 BFC-Adimensionsandweight........................................................... 44Table10 BMPP2-Bdimensionsandweight...................................................... 45Table11 HDSAM-Adimensionsandweight..................................................... 46Table12 AMCSF-Adimensionsandweight......................................................47Table13 BAPDU-Adimensionsandweight...................................................... 48Table14 BDPDU-Adimensionsandweight......................................................49Table15 BAFE-Bdimensionsandweight......................................................... 49Table16 BAFE-BLEDstates............................................................................ 49Table17 BDFE-Bdimensionsandweight.........................................................51Table18 BDFE-BLEDstates............................................................................51Table19 BAFI-Adimensionsandweight.......................................................... 52Table20 BMFU-Adimensionsandweight........................................................ 53Table21 InternalcablesintheBCNsystem..................................................... 55Table22 SFPandSFP+transceivers............................................................... 57


6 DN09116019 Issue:4-0

1 SummaryofchangesChangesbetweendocumentissuesarecumulative.Therefore,thelatestdocumentissuecontainsallchangesmadetopreviousissues.

Changesbetweenissues4-0and3-3TableHDDDifference/comparisontableformcRNCandcRNChasbeenadded.

ChapterMulticontrollerRNCcapacitystep7hasbeenadded.

BCNAMCfillerBAMF-AhasbeenreplacedwithAMCSF-A.

Changesbetweenissues3-3and3-2SectionTechnicalspecificationswasupdatedwiththefollowingsentence:Maximumpercabinet2190W(with4modules).

Informationabout2DIMMequippingwasremovedfromsectionMemorymoduleforBMPP2-Bprocessoradd-incard.

Changesbetweenissues3-2and3-1UpdatesmadetoreflectthenewNSNbrandandcompanyname,hardwaregraphicsupdatedaccordingly.

ChapterBCNinstallationkit-BIKG1-Ahasbeenadded.

MulticontrollerRNCHardwareDescription Summaryofchanges

Issue:4-0 DN09116019 7

2 IntroductionThisdocumentservesasanintroductiontotheBoxControllerNode(BCN)andtheMulticontrollerRNChardwarearchitectureandhardwareparts-enclosure,powersupplymodules,fans,motherboard,processoradd-incards,andAdvancedMezzanineCards(AMCs).

TheBCNisageneric,scalablehardwareplatformsuitableforimplementingawiderangeofprocessing-intensiveproductsservingascontroller-,gateway-orserver-typeentitiesintelecommunicationnetworks.Althoughthenetworkcontextvaries,theproductshavemuchincommonsothatacommonhardwareplatformisviable.

NetworkelementscanconsistofoneBCNmodule(smallnetworkelements)orseveralBCNmodules(largenetworkelementswithlargeprocessingpowerrequirements).

AvailabilityrequirementshaveastrongimpactontheBCNmodulehardwareconfigurationandinterconnectionsolutions.Thepowerfeedoperatesinload-sharingmodeandtheBCNmoduleisoperationalevenifoneofthepowersupplymodulesbreaksdown.ProcessorswithinaBCNmoduleareindependentofeachothersothatafaultyprocessorhasnoeffectontheperformanceoftherestofthemodule.

Introduction MulticontrollerRNCHardwareDescription

8 DN09116019 Issue:4-0

3 OverviewofBCNmoduleTheBCN(BCN-B)modulecontainsamotherboardandhousesadd-incardsandAMCs.Italsoprovidespowerfeed,coolingandhardwaremanagementfunctions.

Figure1 BCNmodule(BCN-B)

Figure2 BacksideoftheBCNmodule

Table1 BCNmoduletechnicaldata

Dimensions(HxWxD) 178mm(4U)x444mmx450mm

Weight Fullyequipped:

Approx.25-30kg(dependsontheconfiguration)

MulticontrollerRNCHardwareDescription OverviewofBCNmodule

Issue:4-0 DN09116019 9

BCNmodulefrontpanelindicatorLEDsTheBCNmodulefrontpanelcontainsthefollowingindicatorLEDs:

Table2 BCNmodulefrontpanelindicatorLEDs

Symbolandname

Color

State

Description

Application-specificLEDs

A1andA2

Green Steadyorblinking Twotri-color,applicationspecificLEDsarecontrolled(color,state,blink)throughanIPMIcommand.

DuringmodulestartupbothLEDswillindicatethestart(BLUE)andcompletion(GREEN)ofLMPsbootsequence.Afterasuccessfulboot-up,LEDswillremaingreenandusercontrolisenabled.

Red Steadyorblinking

Blue Steadyorblinking

Off

PSUindicatorLED Green Steady Bothpowersuppliesoperatenormally.

Red Steady Oneofthepowersupplieshasfailed.

Off Powerisoff.

NSLED Blue Steady

Off Reservedforfutureuse.

Defaultstate:Off

Processor/add-incardLEDs

P1-P8

Green Steady mcRNCapplicationhasstarted.

Red Steady Processoradd-incardispoweredon,butapplicationisnotrunning.

Blue Steady MMCisrunning,buttheprocessorispoweredoff.

Off Noadd-incardinsertedintotheslot.

Eighttri-colourstatusLEDsforprocessoradd-incardsarecontrolledbythemodulemanagementcontrollers(MMCs)ontheadd-incards.

Inaddition,each10GigEand1GigEinterfaceisassociatedwithaLink/ActivityindicationLED(ONwhenthelinkison,blinkingOFFeverytimethereissomeactivity)andaSpeedindicationLED(ONwhentheportisusingitsmaximumspeed,otherwiseOFF).

OverviewofBCNmodule MulticontrollerRNCHardwareDescription

10 DN09116019 Issue:4-0

4 BCNhardwarearchitectureTheBCNmoduleconsistsofamotherboard,eightprocessoradd-incards,twoAMCbayscontainingzero,oneortwoAdvancedMezzanineCards(AMCs),twopowersupplyunitsandthreedualfans.PCIExpress(PCIe)andEthernetinterfacesareusedforinterconnectionswithintheBCNmodule.

4.1 BCNgeneralarchitectureBCNhardwarearchitectureincludesthefollowingparts:

eightadd-incards PCIeswitch(forinterconnections) localmanagementprocessor(LMP) virtualcarriermanagementcontroller(VCMC) Ethernetswitch(10GbE) USBhub(onlyusedforsoftwaredebuggingpurposes) twoAMCbays

ThehardwarearchitectureoftheBCNisalsoillustratedinthefollowingfigure:

Figure3 BCNhardwarearchitecture

Thelocalmanagementprocessor(LMP)isacentralcomponentonthemotherboardandismainlyresponsibleforthefollowingfunctions:

MulticontrollerRNCHardwareDescription BCNhardwarearchitecture

Issue:4-0 DN09116019 11

hardwaremanagementoftheBCN(inco-operationwiththeVCMC) Ethernetswitchandinterfacemanagement offersservicesforUSBmassstoragedevices actsasconsoleserverforprovidingserialconsoleaccesstoadd-incardprocessors

4.2 EthernetswitchdomainandEthernetinterfacing4.2.1 PhysicalstructureoftheEthernetswitchdomain

Physically,theEthernetswitchdomainconsistsofamainEthernetswitchandanextensionEthernetswitch.Themainpurposeoftheextensionswitchistobreaktwo10GigEportsintoseveral1GigEportsbeconnectedtothefrontpanelandAMCmodules.

EthernetswitchdomainforBCN-AThemainEthernetswitchprovides24x10GigEportsandfour1GigEports.Theportsareassignedasfollows:

Sixexternal10GigE(SFP+)interfacesforexternalcablingandinter-modulecablingviatheBCNmodulefrontpanel.

Twointernal10GigEinterfacestowardseachadd-incard. Twointernal10GigEinterfacestowardstheextensionEthernetswitch Oneinternal1GigEinterfacetowardsthemanagementEthernetswitch Oneinternal1GigEinterface(FI)towardsAMCbay2 Twointernal1GigEinterface(BI)towardstheAMCbays

TheextensionEthernetswitchprovidestwo10GigEportsand24x1GigEportsthatareassignedasfollows:

Sixteenexternal1GigE(SFP)interfacesforexternalcablingviatheBCNmodulefrontpanel.

Twointernal10GigEinterfacestowardsthemainEthernetswitch Eightinternal1GigEinterfaces(FIandBI)towardsAMCbays1and2

EthernetswitchdomainforBCN-BThemainEthernetswitchprovides24x10GigEportsandfour1GigEports.Theportsareassignedasfollows:

Sevenexternal10GigE(SFP+)interfacesforexternalcablingandinter-modulecablingviatheBCNmodulefrontpanel.

Oneexternal1GigE(SFP)interfaceportforportmirroring/tracingviatheBCNmodulefrontpanel.

Twointernal10GigEinterfacestowardseachadd-incard.

g BCN-Bslot#1has1x10GigEand1x1GigE. Twointernal10GigEinterfacestowardstheextensionEthernetswitch Oneinternal1GigEinterfacetowardsthemanagementEthernetswitch Oneinternal1GigEinterface(FI)towardsAMCbay2

TheextensionEthernetswitchprovidesfour10GigEportsand24x1GigEportsthatareassignedasfollows:

BCNhardwarearchitecture MulticontrollerRNCHardwareDescription

12 DN09116019 Issue:4-0

Twoexternal10GigE(SFP+)interfacesforexternalcablingviatheBCNmodulefrontpanel.

g Theseinterfacesare10GigEonly. Tenexternal1GigE(SFP)interfacesforexternalcablingviatheBCNmodule

frontpanel. Twointernal10GigEinterfacestowardsthemainEthernetswitch Teninternal1GigEinterfacestowardsAMCbays1and2

ABCNmodulealsoprovidestwoadditional1GigE(SFP)interfacesforaccessingadd-incardslots1and8fornetworkelementmanagementpurposes.Theseportsconnectdirectlytotheslots,bypassingtheEthernetswitches.

g Eventhoughtherearetwo10GigEandten1GigEexternalinterfacesconnectingtotheextensionEthernetswitchviathefrontpanel,thetotalaggregatethroughputoftheseinterfacesin20Gbit/s.ThisisbecausetheextensionEthernetswitchconnectstothemainEthernetswitchusingtwo10GigEinterfaces.

4.2.2 ExternalEthernetinterfacesTheexternalEthernetinterfacesareimplementedusingSmallForm-factorPluggable(SFP/SPF+)modules.ThephysicalconnectiontypeandinterfaceconnectortypedependsonthetypeofSFPmoduleused.Theinterfacecouldbeforinstancea1000Base-TRJ45copperinterfaceora1000Base-SXshort-haulfiberinterface.The10GigEinterconnectingisbasedonmoreadvancedSFP+modules.Atpresent,thereareseveraltypesoffiber-basedSFP+modulesavailable.Theinter-modulecablingcanbeimplementedusingdirectattachcables,wheretheSFP+modulesareintegratedwiththecable.

SeechapterSFPandSFP+transceiversforsupportedSFPandSPF+modules.

4.3 HarddiskcontrollerTheharddiskcontrollercanhandleinterfacingtouptotwoSerialAttachedSCSI(SAS)orSerialATA(SATA)-typeharddisks-however,inBCNonlySASharddisksareused.Physically,theharddiskdriveisequippedintheharddiskdrivecarrierAMC.

ItispossibletouseSAScablingtocross-connectharddisksbetweenBCNmodules.TheSAScross-connectioncanbeusedonlyfortheharddiskdrivecarrierAMCthatislocatedintheAMCbay1ofanBCNmodule.


Issue:4-0 DN09116019 13

Figure4 SAScross-sharingconnectionbetweentwoBCNmodules

4.4 USBinterfaceTheUSBinterfaceisusedforsoftwaredownloadinginNSNfactory.

4.5 Consoleaccesstoadd-incardprocessorsThelocalmanagementprocessor(LMP)alsoperformsthefunctionofaconsoleserverandprovidesdirectaccess(foranexternalPC)totheserialconsolesoftheadd-incardprocessorsfordebuggingpurposes.

AnexternalPCisconnectedtothe1GigE(1000Base-T)localmanagementportontheBCNmodulefrontpanel.FromtheexternalPCitispossibletoestablishaTelnetorSSHconnectiontotheLMP.FromtheLMPtheconsoleaccessconnectioncanbeestablishedtoUARTsofanyoftheprocessoradd-incards.

4.6 ExternalalarminterfaceTheBCNmoduleprovideseightexternalalarminterfacesontwoRJ45connectorsinthefrontpanel.Theinputsarevoltagesensitive.Analarmisactivatedbyclosingthealarmcircuitwithanexternalswitch.BothclosingtheloopandopeningitwillgenerateanIPMIeventtothehardwaremanagementsystem.


14 DN09116019 Issue:4-0

Theclosedloopcurrentofthealarmcircuitis1mA.Glitchesshorterthan10millisecondsarefilteredout.Attentionneedstobepaidtothecontactmaterialsoftheswitchtopreventcontaminationofthecontactsurfacesduetothelowcurrent.

ThealarminputsarenotgalvanicallyisolatedintheBCN.Whenremoteexternalequipmentisusedtodrivetheinputs,galvanicalisolation(relays,opticalisolators)shouldbeused.

4.7 SynchronizationinterfaceTheBCNmoduleprovidestwoexternalsynchronizationinterfacesontwoRJ45connectorsinthefrontpanel.TheBCNmodulesupportsnativelythefollowingsynchronizationsignalsatthesynchronizationinterfaces(bothinputsandoutputs):

E1,2.048MHz T1,JT1,1.544MHz

ThesynchronizationsignalcanbeextractedfromE1/T1/JT1frames,andalsoembeddedintheframes.Receivingandtransmittingaplain,non-framedclockinandoutoftheBCNisalsosupported.Bothinterfacescanbeconfiguredseparatelytouseframedornon-framedsignals.However,bothinterfacesmustusethesameclockfrequency:E1/2.048MHzorT1/JT1/1.544MHz.

WithanoptionalsynchronizationAMCmodule(BSAC-A)awiderrangeofsynchronizationsignalscanbeusedbytheBCNmodule.TheuseofsynchronizationAMCisanetwork-element-specificfeature.

4.8 Add-incardarchitectureandinterfacingUptoeightprocessoradd-incardsprovidethemainprocessingpoweroftheBCN.Theinterfacingtothemotherboardisindependentofthetypeofadd-incardused.Twoadd-incards,onslots1or8,canbeaccesseddirectlyfromtheBCNmodulefrontpanelviaoneofthetwooptionalexternal1GigEmanagementinterfaces.

Dependingontheadd-incardtype,anadd-incardprovidesnetworking,TCPacceleration,QoS,compressionordigitalsignalprocessingfeatures.

TheconnectiontothemotherboardisviatwoPCIeconnectors:one16-laneandonesingle-lanePCIeconnector.Asshownbelow,thisinterfacingprovidesthefollowingconnections:

Two10GigE(XAUI)portsprovideconnectivitytowardstheEthernetswitchdomain. Afour-lanePCIeconnectionextendstowardsthePCIeswitchforprovidingharddisk

access. IPMB-Linterfacingbetweenthemodulemanagementcontroller(MMC)ontheadd-in

cardandthevirtualcarriermanagementcontroller(VCMC)onthemotherboard A100Mbit/sEthernetinterface(100Base-T)towardsthelocalmanagementEthernet

switch Aserialinterface(UART)towardsthelocalmanagementprocessor(LMP)for

enablingserialconsoleoperation USBinterfacingtowardstheUSBhub(onlyusedforsoftwaredebuggingpurposes)


Issue:4-0 DN09116019 15

Add-incardsinslots1and8canbeaccessedfromtheBCNmodulefrontpanelviaanexternal1GigEmanagementinterface.Themanagementinterfaceisprovidedbyaseparatedmediumaccesschipthatisinterconnectedtoanadd-incardviathePCIeinterface.

Figure5 Add-incardconnectivity

DN0969015

MMC

Add-incard

LMPVCMC

USB

IPMB-L

EthernetSwitchDomain

PCIeSwitch

ManagementEthernetSwitch

100Base-T

4-lanePCIe

10GigE

1GigEManagementInterface

2

16-lanePCIeconnector

1-lanePCIeconnector

MACPHY

4-lanePCIe

4.9 AMCinterfacingEachBCNmodulecontainstwoAdvancedMezzanineCard(AMC)baysintowhichmid-size,single-widthAMCscanbeinserted.

TheAMCconnectorattheendoftheAMCbayisfullycompatiblewiththePICMGAdvancedMCspecifications.Asshowninfigurebelow,theconnectorprovidesthefollowingconnections:

Four1GigEports(AMCbay1)orfive1GigEports(AMCbay2)providepayloadconnectivitytowardstheEthernetswitchdomainforthefabricinterface(FI).

One1GigEportprovidesmanagementconnectivitytowardstheEthernetswitchdomainforthebaseinterface(BI).

Afour-lanePCIeconnectionextendstowardsthePCIeswitch. SerialAttachedSCSI(SAS)interfacingisprovidedtowardstheharddiskcontroller. Harddiskcrossconnectispossible(onlyfromAMCbay1)viatheSASconnectoron

theBCNmodulefrontpanel. InterconnectingbetweentheAMCsisavailableforimplementingtheupdatechannel. IPMB-Lbusprovidesconnectivitybetweenthemodulemanagementcontroller

(MMC)ontheAMCandthevirtualcarriermanagementcontroller(VCMC)onthemotherboard.


16 DN09116019 Issue:4-0

AMCsarehotswappable,thatis,theycanberemovedorreplacedwhiletheBCNmoduleispoweredupandrunning.Thehot-swapprocedureiscontrolledbythemodulemanager.Themodulemanagergivesthepermissionforperformingahotswapbyturningonthebluehot-swapLEDontheAMCfaceplate.

DespitethefactthattheAMCmodulehotswapisfullysupportedbythehardware,itmayalsodependontheapplicationsoftwarerunningintheBCNwhetheraspecificAMCmodulecanbechangedwhiletheapplicationisrunning.

Figure6 AMCbayconnectivity


Issue:4-0 DN09116019 17

5 HardwaremanagementHardwaremanagementinaBCN-basednetworkelementtakesplacebothattheBCNmodulelevelandnetworkelementlevel.

5.1 HardwaremanagementatBCNmodulelevelThecentralhardwaremanagemententitywithinaBCNmoduleisthemodulemanager.Themodulemanagerconsistsofthevirtualcarriermanagementcontroller(VCMC)andsoftwarerunningonthelocalmanagementprocessor(LMP),asshowninthefigurebelow.

TheinterfacingfromtheVCMCtowardsthevarioushardwareentitiesintheBCNmoduleconformswiththeIntelligentPlatformManagementInterface(IPMI)specifications.

Figure7 Hardwaremanagement

BCNmoduleincludes8add-incards.Eachadd-incardcontainsamodulemanagementcontroller(MMC).TheMMCisconnectedtotheVCMCviathelocalintelligentplatformmanagementbus(IPMB-L).

Inasimilarfashion,HarddiskAMCcanbeattachedtotheBCNmodule.Again,eachAMCcontainsamodulemanagementcontrollerwhichisconnectedtotheVCMCviatheIPMB-Lbus.

Hardwaremanagement MulticontrollerRNCHardwareDescription

18 DN09116019 Issue:4-0

UnderthecontroloftheVCMC,theMMCsperformhardwaremanagementoperationsontheprocessoradd-incardsandAMCs.TheMMCsareconnectedtotheadd-incardprocessorsortheAMCprocessorsviaauniversalasynchronousreceiver/transmitter(UART)serialinterface.

Themodulemanagercontrolspassivehardwareparts(powersupplyunits,fans,etc.)viatheinter-integratedcircuit(I2C)serialbus.Itkeepstrackofallsensorsonthemotherboard(temperatures,voltages,fanrotationspeed)andadjuststhefanrotationspeedaccordingtothemeasuredtemperature.Themodulemanageralsostoresallthehardware-relatedfieldreplaceableunit(FRU)dataassociatedwiththeBCNmoduleintheFRUinventory,andstoresallhardware-relatedeventsinasystemeventlog(SEL).

TheVCMCisconnectedtotheLMPviaaUARTserialinterface.

5.2 HardwaremanagementatnetworkelementlevelHardwaremanagementatthenetworkelementlevelishandledbythesystemmanagementsoftware(SMS).Thenetworkelement(consistingoftwoormoreBCNmodules)typicallycontainsoneactiveandonestandbySMSentity.

ThenetworkelementconsistsofseveralBCNmodules,theactiveandstandbysystemmanageradd-incardsarelocatedindifferentBCNmodules.Thereasonforselectingadd-incardsintheseparticularslotsforrunningthesystemmanagersoftwareisthatonlytheseslotsofferanexternalinterface(fornetworkelementhardwaremanagement)viatheBCNmodulefrontpanel.

AlocalmanagementEthernetswitchprovides100Mbit/sEthernetconnectivitybetweenthesystemmanagerandthemodulemanager.ThisswitchisalsoconnectedtothemainEthernetswitchdomain,sothatthesystemmanagerinoneBCNmodulecanaccessamodulemanagerlocatedinanotherBCNmoduleviaexternalinter-moduleEthernetcabling.ThesignallingtrafficbetweenthesystemmanagerandmodulemanagerconsistsofIPMIcommandsencapsulatedinRemoteManagementControlProtocol(RMCP)messages.

ThelocalmanagementEthernetswitchalsoprovidesexternal1GigEaccessviatheBCNmodulefrontpanel.

MulticontrollerRNCHardwareDescription Hardwaremanagement

Issue:4-0 DN09116019 19

Figure8 Network-element-levelhardwaremanagement

DN0969066

BCNModule2

EthernetSwitch

Add-inCard

SystemManager(standby)

LMP+

VCMC

ModuleManager

Add-incardor AMC

MMCIPMB-L

BCNModule1

EthernetSwitch

Add-inCard

SystemManager(active)

LMP+

VCMC

ModuleManager

Add-incardor AMC

MMCIPMB-L

UserInterface

Ethernet

WithinacertainBCNmodule,themodulemanagerstoresallthehardware-relatedfieldreplaceableunit(FRU)datainanelectricallyerasableprogrammableread-onlymemory(EEPROM).Itispossiblefortheuser-viatheuserinterfacetothesystemmanager-toreadandmodifythisdata.Itispossible,forinstance,tomodifythethresholdsforthermalandvoltagesensors.

5.3 DifferencesbetweencRNCandmcRNCHardwaremanagement:Itmeansthisfeatureissupportedinthisproduct;

:Itmeansthisfeatureisnotsupportedinthisproduct;

:Itmeansthisfeatureisnotrelatedwiththisproduct;

Table3 HDDDifference/comparisontableformcRNCandcRNC

Feature

Difference

cRNC

cRNCDescription

mcRNC

mcRNCDescription

Harddiskstatemanagement

Functionalunitstate

HarddiskisconfiguredasWDUwhichisafunctionalunitandhasrecoverystate.RecoverysystemhandlesthestateofWDUanddoesrecoveryactionforthem.UsercanuseIHI::WDUtoshowWDUstateand

ThestateofHarddiskisrelatedwithstateofCFPU[external]Ifaharddiskisfaulty,alarm70359(HARDDISKDRIVEFAILURE)willbereportedandtherelatedCFPUnodewillbeoutofuse.

Hardwaremanagement MulticontrollerRNCHardwareDescription

20 DN09116019 Issue:4-0

Table3 HDDDifference/comparisontableformcRNCandcRNC(Cont.)

Feature

Difference

cRNC

cRNCDescription

mcRNC

mcRNCDescription

IHEtochangethestate.ThemainstateofWDUcanbeWO,BL,TEorSE.USBmemorystickisconfiguredasFDUandcanbeusedtomakefallbackpackage.SCSIbusisalsoconfiguredasSCSI-x.

Plug-inunitstate

InmcRNCdocument,thetermofadd-incardisusedtoinsteadofplug-inunit.SCLIcommandshowhardwareinventorylistbriefisusedtoshowadd-incardstate.TheunittypeofdiskisHDSAM-A,hardwareentitynameisAMC-1orAMC-2.

InmcRNCdocument,thetermofadd-incardisusedtoinsteadofplug-inunit.SCLIcommandshowhardwareinventorylistbriefisusedtoshowadd-incardstate.TheunittypeofdiskisHDSAM-A,hardwareentitynameisAMC-1orAMC-2.

Harddiskaccess

Filesystem ThetwodisksaremountedinWOOMUwhichprovidesaunifiedfilesystemtoSPOMUandotherunits.

ThetwodisksaremountedseparatelyintwoCFPUnodes.EachCFPUnodehasonlyaccesstotherelevantdiskinthesamebox.EachCFPUnodehasindependentfilesystem.TheothernodesaccessfilesystemviaNFS.Thediskaresplittoseveralpartitions,eachpartitionhasfixedspace.Iffreespaceofapartition

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