[电信]北电资料tips

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1、Openshortestpathfirst(OSPF)Interiorgatewayprotocol(IGP)Gatewaynetworkelement(GNE)LinkCapacityAdjustmentscheme–(LCAS)NetworkEquipmentBuildingSystem(NEBS)EuropeanTelecommunicationsStandardsInstitute(ETSI)OpticalDedicatedProtectionRing(ODPR)Lineterminatingequipment(LTE)D

2、ispersion-shiftedfiber(DSF)MultiwavelengthOpticalRepeater(MOR)Non-dispersion-shiftedfiber(NDSF)Enhancedlargeeffective-areafiber(E-LEAF)PowerOptimizer(PO)PushButtonEqualization(PBE)AnalogMaintenance2(AM2)PeakPowerControlLoops(PPCL)Opticaladd/dropmultiplexers(OADM)Dispe

3、rsion-slopecompensationmodule(DSCM)Opticalspectrumanalyzer(OSA)Erbium-dopedfiberamplifiers(EDFA)WavelengthTranslator(WT)Reshapes,re-timesandre-amplifies(3R)Forwarderrorcorrection(singleFECorTriFEC)SingleForwardErrorCorrection(FEC)TripleForwardErrorCorrection(TriFEC)Op

4、ticalDedicatedProtectionRing(ODPR)Opticalswitchmodule(OSM).Multiplexersectionsharedprotectionring(MS-SPRing)Sub-networkconnectionprotection(SNCP)DistributedRamanamplifier(DRA)Opticalsignal-to-noiseratio(OSNR)Opticalservicechannel(OSC).DC-basedopticalreflectometer(DCOR

5、)StimulatedRamanscattering(SRS)MSA=8~11dB,11dBisbetter.SpanLossisnotlessthan18dBIQvaluebetween0.7~1.0SQValueshouldn’tbreak0.5dBbetweeneachwavelengthchannelWTReceivedopticalpowershouldbeunder-5dBDaulAMP=15.5dBmax.Returnloss=30~40dB,40dBisbetter.Booster18=17.5dB;Booster

6、21=21.5dB.Totalopticalchannelhalfreduce,thentotalopticalpowervalueminus3dB.OPCandHP-UNIXprocessing:InOPCUNIXshell,tocheckalarms:lasaldmp–aStopanyProcessingID:ps–ef

7、grep####,thenkill-9####TochecksystemsoftwareandCPUworkingstatus:top,tostopitbyCtrl+CTosetHP-UNIXparamete

8、r:cd/etc,setparms.Tofindsomething:find/-name####;find/-size####Tochecknetworkstatus:netstat–rnforroutertable;morenetconfigfornetworksetuppresents;ifconfiglan0forlan0setupandstatus.Tocheckworkstationmodel:modelTocheckworkstationSWversion:uname–aTofinddiskID:ioscan–fnCd

9、iskAboutdisk:diskinfo/dev/dsk/c#t#d#;dmesg

10、grepphysical.Aboutsoftwareinstalledchecklist:swlist

11、moreChangepassword:loginasroo