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Chapter 9. Using the ONS 15454 Platform to Support DWDM Transport: MSTP

Chapter 9. Using the ONS 15454 Platform to Support DWDM Transport: MSTP

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ONS15454MSTPSupportedNetworkConfigurations



Asnotedinearlierchapters,theflexible,scalabledesignofthe

CiscoONS15454lendsitselftomultipleuseswithinthecarrier

transportenvironment.Carrierscantakeadvantageofitstimedivisionmultiplexing(TDM)andEthernetsolutions,andits

supportofdensewavelength-divisionmultiplexing(DWDM)as

well.TheONS15454istransformedintoaMultiservice

TransportPlatform(MSTP)byslottingitscommoncontroland

interfacecardswithDWDM-specificinterfacecards.Although

theONS15454canbeusedfor"hybrid"TDM/DWDM

applications,thischapterandothersfocussolelyontheDWDM

operation.Thischapterhighlightsthebasicbuildingblocksof

theMSTP.Youwillexaminethefollowingfeaturesandfunctions

associatedwitheachMSTPcomponent:

Shelfassembly

Commoncontrolcards

Multiplexer/demultiplexercards

Opticaladd/dropinterfacecards

Transponder/muxponderinterfacecards

Amplifierinterfacecards

Dispersioncompensationunit(DCU)

Afterathoroughexaminationofeachinterfacetype,the

chapterconcludeswithnetworktopologyandshelfconfiguration

examples.Eachshelfconfigurationexampleisintendedtoshow

themostcommonequipmentconfigurationsapplicableto



today'snetworks.



ONS15454ShelfAssembly

TheshelfassemblyusedforONS15454MSTPoperationisthe

sameshelfassemblyusedforONS15454Multiservice

ProvisioningPlatform(MSPP)configurations.Chapter6,"MSPP

NetworkDesignExample:CiscoONS15454,"coveredindetail

thefeaturesandfunctionsofthisshelfassembly;the

informationisrepeatedhereforconvenience.TheONS15454

shelfassemblyisa17-slotchassiswithanintegratedfantray,

rearelectricalterminations,andfrontoptical,Ethernet,and

managementconnections.Slots16and1217areusedfor

trafficinterfacecards;Slots711arereservedforcommon

controlcards.Slots16,ontheleftsideasyoufacethefrontof

theshelf,areconsideredSideA;whileSlots1217are

consideredSideB.Table9-1summarizesthecardslotfunctions

fortheONS15454shelfassemblywhenitisusedforMSTP

configurations.

Table9-1.ONS15454ShelfAssemblySlotFunctions

Slot

Number



ShelfSide



MSTPInterfaceCardFunction(s)



1



A



OSC-CSM,32MUX-0,32WSS,32DMX0,32DMX,4MD-xx.x,AD-1B.xx.x,AD4B.xx.x,AD-1C-xx.x,AD-2C-xx.x,AD4C-xx.x,MR/P-L1-xx.x,10E-L1-xx.x,

10ME-xx.x,DM/P-L1-xx.x,OPT-PRE,

andOPT-BST/E



2



A



OSC-CSM,32MUX-0,32WSS,32DMX0,32DMX,4MD-xx.x,AD-1B.xx.x,AD4B.xx.x,AD-1C-xx.x,AD-2C-xx.x,AD4C-xx.x,MR/P-L1-xx.x,10E-L1-xx.x,

10ME-xx.x,DM/P-L1-xx.x,OPT-PRE,

andOPT-BST/E



3



A



OSC-CSM,32MUX-0,32WSS,32DMX0,32DMX,4MD-xx.x,AD-1B.xx.x,AD4B.xx.x,AD-1C-xx.x,AD-2C-xx.x,AD4C-xx.x,MR/P-L1-xx.x,10E-L1-xx.x,



10ME-xx.x,DM/P-L1-xx.x,OPT-PRE,

andOPT-BST/E

4



A



OSC-CSM,32MUX-0,32WSS,32DMX0,32DMX,4MD-xx.x,AD-1B.xx.x,AD4B.xx.x,AD-1C-xx.x,AD-2C-xx.x,AD4C-xx.x,MR/P-L1-xx.x,10E-L1-xx.x,

10ME-xx.x,DM/P-L1-xx.x,OPT-PRE,

andOPT-BST/E



5



A



OSC-CSM,32MUX-0,32WSS,32DMX0,32DMX,4MD-xx.x,AD-1B.xx.x,AD4B.xx.x,AD-1C-xx.x,AD-2C-xx.x,AD4C-xx.x,MR/P-L1-xx.x,10E-L1-xx.x,

10ME-xx.x,DM/P-L1-xx.x,OPT-PRE,

andOPT-BST/E



6



A



OSC-CSM,32DMX,4MD-xx.x,AD1B.xx.x,AD-4B.xx.x,AD-1C-xx.x,AD2C-xx.x,AD-4C-xx.x,MR/P-L1-xx.x,

10E-L1-xx.x,10ME-xx.x,DM/P-L1-xx.x,

OPT-PRE,andOPT-BST/E



7



TCC



8



OSCM



9



AIC



10



OSCM



11



TCC



12



B



OSC-CSM,32MUX-0,32WSS,32DMX0,32DMX,4MD-xx.x,AD-1B.xx.x,AD4B.xx.x,AD-1C-xx.x,AD-2C-xx.x,AD4C-xx.x,MR/P-L1-xx.x,10E-L1-xx.x,

10ME-xx.x,DM/P-L1-xx.x,OPT-PRE,

andOPT-BST/E



13



B



OSC-CSM,32MUX-0,32WSS,32DMX0,32DMX,4MD-xx.x,AD-1B.xx.x,AD4B.xx.x,AD-1C-xx.x,AD-2C-xx.x,AD4C-xx.x,MR/P-L1-xx.x,10E-L1-xx.x,

10ME-xx.x,DM/P-L1-xx.x,OPT-PRE,

andOPT-BST/E



14



B



OSC-CSM,32MUX-0,32WSS,32DMX0,32DMX,4MD-xx.x,AD-1B.xx.x,AD4B.xx.x,AD-1C-xx.x,AD-2C-xx.x,AD4C-xx.x,MR/P-L1-xx.x,10E-L1-xx.x,

10ME-xx.x,DM/P-L1-xx.x,OPT-PRE,

andOPT-BST/E



15



B



OSC-CSM,32MUX-0,32WSS,32DMX0,32DMX,4MD-xx.x,AD-1B.xx.x,AD4B.xx.x,AD-1C-xx.x,AD-2C-xx.x,AD4C-xx.x,MR/P-L1-xx.x,10E-L1-xx.x,

10ME-xx.x,DM/P-L1-xx.x,OPT-PRE,

andOPT-BST/E



16



B



OSC-CSM,32MUX-0,32WSS,32DMX0,32DMX,4MD-xx.x,AD-1B.xx.x,AD4B.xx.x,AD-1C-xx.x,AD-2C-xx.x,AD4C-xx.x,MR/P-L1-xx.x,10E-L1-xx.x,

10ME-xx.x,DM/P-L1-xx.x,OPT-PRE,

andOPT-BST/E



17



B



OSC-CSM,32DMX,4MD-xx.x,AD1B.xx.x,AD-4B.xx.x,AD-1C-xx.x,AD2C-xx.x,AD-4C-xx.x,MR/P-L1-xx.x,

10E-L1-xx.x,10ME-xx.x,DM/P-L1-xx.x,

OPT-PRE,andOPT-BST/E



ONS15454ShelfAssemblyBackplane

Interfaces

BackplaneinterfacesoftheONS15454chassiscanbedivided

intofourgeneralareas:

Powerterminalarea

Alarmandchassisgroundarea



SideAElectricalInterfaceAssembly

SideBElectricalInterfaceAssembly

Figure9-1showsthelocationofeachoftheseareasasyouface

therearoftheshelfassembly.ElectricalInterfaceAssemblies

(EIAs)arerequiredforterminatingelectricaltrafficsignals,such

asDS1sandDS3s,ontheshelf.EIAsarenotrequiredforMSTP

operation.



Figure9-1.ONS15454BackplaneInterfaces



[Viewfullsizeimage]



Thepowerterminalareaconsistsoffourpowerterminalscrews

onthelowerleftside.TheRET1/BAT1terminalsarefortheA

powerconnection;theRET2/BAT2terminalsarefortheB

connection.Theseconnectionsareredundant,andeithercan



powertheentireshelf.TheAandBdesignationsdonotreferto

theAandBsidesoftheshelf.

Thealarmandchassisgroundareaislocatedintherearofthe

chassisonthelowerrightsideandhasthefollowing

terminations:

FramegroundterminalsTwoterminalswithkepnutsare

providedforground-wirelugconnection.Thisconnection

ensuresthattheshelfassemblyisatthesameelectrical

potentialwiththeofficeground.

BITS(BuildingIntegratedTimingSupply)Thisconsistsof

fourwire-wrappinpairsforconnectiontoaBITSorfor

wiringouttoexternalequipmentwhentheBITS-Out

featureisusedtosupplytimingfromtheONS15454.

LAN(Local-areanetwork)ALANconnectstheMSPPnode

toamanagementwork-stationornetwork.Itconsistsof

fourwire-wrappinpairs;typically,twopairsareused.

EnvironmentalalarmsSixteenwire-wrappinpairsare

providedforexternalalarmsandcontrols.TheAlarm

InterfaceControllercard,coveredlaterinthischapter,is

requiredtousetheseconnections.

ACOAlarmcutoff,awire-wrappinpairthatisusedto

deactivatetheaudiblealarmscausedbythecontact

closuresontheshelfbackplane.Thisoperationisdescribed

inthe"Timing,Communications,andControlCards"

section,laterinthischapter.

ModemFourpairsofwire-wrappinsareprovidedfor

connectingtheONS15454toamodemforremote

management.



CraftTwowire-wrappinpairsareprovidedforaTL1craftmanagementconnection.VT100emulationsoftwareisused

tocommunicatewiththesystembywayofthisconnection.

LocalalarmsEightwire-wrappinpairsareusedfor

Critical,Major,Minor,andRemoteaudibleandvisualalarms.







Timing,Communications,andControlCards

TheTiming,Communications,andControl(TCC)cardsusedfor

ONS15454MSTPoperationarethesameTCCusedforONS

15454MSPPconfigurations.Chapter6coveredthefeaturesand

functionsoftheTCCinterfaceindetail.Theinformationis

repeatedhereforconvenience.

TheTiming,Communications,andControl(TCC)cardsare

requiredforoperationoftheONS15454MSPPsystemandare

installedinaredundantpairinshelfSlots7and11.Twocurrent

versionsareavailablefromCisco:theAdvancedTiming,

Communications,andControlcard(TCC2),andtheEnhanced

AdvancedTiming,Communications,andControlcard(TCC2P).

Bothperformthesamebasicfunctions,buttheTCC2Pisan

updatedversionoftheTCC2andincludessomesecurity

enhancementsandadditionalsynchronizationoptionsthatare

notavailableintheTCC2.Bothcardshaveapurplesquare

symbolontheirfaceplates,whichcorrespondstomatching

symbolsonthefrontoftheONS15454shelfassembly.This

servesasanaidineasilyidentifyingthecorrectlocationto

installthecard.TCCcardsaretheonlycardtypeallowedin

Slots7and11,andbothslotsshouldalwaysbeequipped.Cisco

doesnotsupporttheoperationoftheONS15454MSPPsystem

withonlyasingleTCCcardinstalled.Althoughthesystem

technicallycanfunctionwithonlyasinglecard,thesecondcard

isnecessaryforredundancyandtoallowforcontinuityof

systemtrafficincaseofafailureorresetoftheprimarycard.

Thesystemraisesthe"ProtectionUnitNotAvailable"(PROTNA)

alarmifthesecondaryTCCcardisnotinstalled.

TwoearlierversionsoftheTCC2andTCC2Pcardsexist,called

simplytheTiming,Communications,andControl(TCC)card

andtheTCCPlus(TCC+).Theseolder-versionTCCcards

providesimilarfunctionalitytothecurrentcards,buttheyare

muchmorelimitedinprocessingpower.Althoughtheycanmay



beinstalledinsomeexistingsystems,Cisconolongerproduces

theTCCorTCC+versions.

TheTCC2andTCC2Pcardsperformavarietyofcriticalsystem

functions,includingthefollowing:

SysteminitializationTheTCC2s/TCC2Psarethefirst

cardsinitiallyinstalledinthesystemandarerequiredto

initializesystemoperation.

Software,database,andInternetProtocol(IP)

addressstorageThenodedatabase,systemsoftware,and

assignedsystemIPaddress(oraddresses)arestoredin

nonvolatilememoryontheTCC2/TCC2Pcard,whichallows

forquickrestorationofserviceincaseofacompletepower

outage.

AlarmreportingTheTCC2/TCC2Pmonitorsallsystem

elementsforalarmconditionsandreportstheirstatususing

thefaceplateandfantraylight-emittingdiodes(LEDs).It

alsoreportstothemanagementsoftwaresystems.

SystemtimingTheTCCcardmonitorstimingfromall

sources(bothopticalandBITSinputs)foraccuracy.The

TCCselectsthetimingsource,whichisrecoveredclocking

fromanopticalport,aBITSsource,ortheinternalStratum

level3clock.

Cellbusorigination/terminationTheTCCcards

originateandterminateacellbus,whichallowsfor

communicationbetweenanytwocardsinthenodeand

facilitatespeer-to-peercommunication.Theselinksare

importanttoensurefastprotectionswitchingfromafailed

cardtoaredundant-protectioncard.

DiagnosticsSystemperformancetestingisenabledbythe



TCCcards.ThisincludesthesystemLEDtest,whichcanbe

runfromthefaceplatetestbuttonontheactiveTCCor

usingCiscoTransportController(CTC).

PowersupplyvoltagemonitoringAnalarmisgenerated

ifoneorbothofthepower-supplyconnectionsisoperating

atavoltageoutsidethespecifiedrange.Allowablepower

supplyvoltagethresholdsareprovisionableinCTC.

Figure9-2showsadiagramofthefaceplateoftheTCC2/TCC2P

card.



Figure9-2.TCC2/TCC2PFaceplateDiagram



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