时钟源相关告警严重影响切换指标问题汇总及解决方法

时钟源相关告警问题汇总及解决方法1.问题描述:GPSreceiveralarm:positionquestionable(4125)类告警，存在切换指标变差的隐患，此时GPS已经处于故障状态，已经无法起到同步时钟的作用,等到基站周期性的从GPS获取同步时，此时就会产生"shared:N;BTSreferenceclockmissing"等告警，同时切换指标变差;要防患于未然，提前把这个告警消除掉，不让切换变的情况出现.解决方法:多次重启GPS直到"workingstate"="working"且"PPSoutputstatus"="Generated";GPS模块正

常;如下GPS正常的状态.GPS正常后，如果查看下图的DAC正常值在2000左右,不会影响切换指标;低于1900或者高于2100一般就会导致切换差，需要在同步源正常的情况下，同过登站后如下选项"configuration-btsconfigurationfasttunebtsclock"完成DAC的快速调整到2000左右.PnAhkwiLWiu曲：LongitudE%・E'^d-f'N11妒3Fim『ERO.SmRFS^iTlennaNahlnmi■皿.jjflSifiiJNJime:UjinutsrlurerFrodijci^adhiSinilfiuEtiMWoi^r'igfilaiw：、洞罚仰。PPE：dulpiliabSrLifii：如眼£MlF-bUIhH!iCUir^MlkidnF5BC1■Lticai*7Z1ifreW.01AHd132■30NdHE31Nd11SYbSi1ES筮Nd2D£I伯Yasi14JBSluflAilAHti-lMinualKwiiimg|CloseToneBTSGl。席kMsmuimllvPnnntrSynchrancabonsource4TransmissionCTDM^ncE/roP)AFiimhiiighintavailableAvailablBNuta^ilahla丽iliahieReadingDACwordcompisled23.03.20161T：OUGP押PnAhkwiLWiu曲：LongitudE%・E'^d-f'N11妒3Fim『ERO.SmRFS^iTlennaNahlnmi■皿.jjflSifiiJNJime:UjinutsrlurerFrodijci^adhiSinilfiuEtiMWoi^r'igfilaiw：、洞罚仰。PPE：dulpiliabSrLifii：如眼£MlF-bUIhH!iCUir^MlkidnF5BC1■Lticai*7Z1ifreW.01AHd132■30NdHE31Nd11SYbSi1ES筮Nd2D£I伯Yasi14JBSluflAilAHti-lMinualKwiiimg|CloseToneBTSGl。席kMsmuimllvPnnntrSynchrancabonsource4TransmissionCTDM^ncE/roP)AFiimhiiighintavailableAvailablBNuta^ilahla丽iliahieReadingDACwordcompisled23.03.20161T：OUGP押PE23.032D1B1E：51GPGlPPE23.03JDIB15：41G=P5lFPS23.03.201616:31OPSiFPS23.03.201616:21OPBPPS23.032D1B16:11GPGiPPS23.03.301615:42GPBiPPS23.03.201615:32OPBiPRSCurrentDAC-vwrd:1964Ney/D^Cword:[04095]Turfinghi^lofyeRfllnsshTimeSMT+DBOOJounce度As.£Erinl...AvieraaeDAC加rrlime:DD：O1tt姓的眦正常佰在湖佐在不会星做I榭断;1氐于血皿古高于以□『股我会畀切换差,需芸在目步慝正常的清共下.同曰登既如下选Jrg".'.anfigm*alien-bisanafi皿East.1皿臼btE心心业“芫血Hff］快理谓磐.(%)AveragenumberofOPS^atelhle^23.032DIB16：Q1GPGlPPS1opsjfpsframradiomodule2GPS(FP332.048MHzHKlernal19E4r-Jormslanon13&4FMormalO.DDD1964Normal0.0001964Normal0ODO19E4Normal23.a3.2D1B15:52GPSlFPS1964Normal0.ODD1964Normal0ODO19E4Pdormslonon1964NormalO.DDD用班新HWVeraionsChangeLocalAccount..LinksTR3l-^VConnguratioriObjectPropertiesFRSHardwareIPcDrillguratlonLogicalCoringorationi酷CommissioningETTEPMgSTSHardwareBTSCanUgurationS^iemFSMFcertiricatBMdnaggmem...Au1oconnectionFfesistration.AuiDcnniiguratian.j^1BlackTogglingFaults...1.1.1IFYGBTunDBTTSClockM"的IlF…fasiTuneBTSClock..EACStSlSB...BTSCIockr1-1TunesBTE：clockrrianual耳BTSSfteManagershared:N;BTSreferenceclockmissing类告警并伴随同步源都不可用，此时是华为的传输故障导致时钟同步源丢失，进而影响切换成功率指标.如下详细的DAC界面的信息呈现.解决方法:通知care同事朱晓明协调华为传输工程师添加华为传输设备同步.一般都能解决.TRSSynchroniEationAciht^ourceinTRS:^7ln1ernalclackTiringsourcea:❶DTSsynchronizatiansourcecanbe❶DTSsynchronizatiansourcecanbefoundfromDTGsiteproperties.lrnp|?-RdElapsedtime:00:01华为传输同步去宪显示为EEC1.,如果正常的情况时显示TRT.此时窑要华为传输工程抵京加传输同岳SendCloseHnnnt/1immgmiiEhhkdpnaa.RdMgawtimfir.iir㈢^PriAWAdririMX■3vrchc.iiQU5Ctneins:FSMHIT2，-5，ZCC1~2~^Selectsecondarysource^—J必3InternalclockSwap-'-idlites3.问题描述:BTSMasterClocktuningfailure(1818)和DifferencebetweenBTSmasterclockandreferencefrequency(0009)两个告警同时出现情况，一般时钟源没有问题，^^决方法:^^决方法:需要在同步源正常的情况下，同过登站后如下选项"configuration-btsconfigurationfasttunebtsclock"完成DAC的快速调整到2000左右.4.问题描述:shared:N;DifferencebetweenBTSmasterclockandreferencefrequency&shared:N;BTStimenotcorrected两个告警同时出现时，一般当前DAC的很低,而同步源是可用，告警指示在BBU.STSHardwareFEI"4*KIBigGP€：yfanu^idUTP*NdHiPradUEtCDEiKSTSHardwareFEI"4*KIBigGP€：yfanu^idUTP*NdHiPradUEtCDEiKSariainumKiW&倾giiiffi；mn■旬fwdkihL^ltUElKUanotudEIM"5FMbludffi+4.3fCiLfidafiriQ需要在同步源正常的情况下，同过登站后如下选项"configuration-btsconfiguration-fasttunebtsclock"完成DAC的快速调整到2000左右.

5.问题描述:存在SyncESSMTimedOutonunit0,interface2(61623)&Synchronizationlost(61058)&BTSreferenceclockmissing(1816)告警是由于华为的传输故障导致的.,但是同步源GPS是正常的,暂时不会影响KPI指标.解决方法:通知care同事协调华为传输工程师对该基站重新做传输同步.，正常值为PRCTR5EyncihmnationCompleledElapsedlime00:01CloseSnoki9TimeGMT*0800■Faultnama21.03.201515:20:07210220131522:4921TR5EyncihmnationCompleledElapsedlime00:01CloseSnoki9TimeGMT*0800■Faultnama21.03.201515:20:07210220131522:492101201615:22:44psmFBIhemFSiMeFBI10.101.1H：|LN7.0匚MlRFF5.北I丽.北I丽■appliesTHdiriQ可bl丽Usrelive。Onairnloc-kRdHikesnuhzeInTRS中lrM『r昭IdockTirningsourcBSQBISs^richFonizaDonsounceDanbeitiundTromETSsrtepFopeme^.STSMU注驼(mplarie):SWrelE-a-sevfirsion:ETSreTerencedockmiEslriQ(1Bl6]j^rithfOhlHlIofiIas1(61060)SmcEBSMTimedDutcnunitD,interfit2(01633>)「*■S^nchranousEmernglF8MEIF2■©QualilyijnkiciX'n2■^Selectsecondarvsouree>/InternalclackipPriQMifiS正常怕鹿诿同％IL6.问题描述:如下告警出现时，多重启几次GPS模块就可以解决。shared:N;GPSReceiveralarm: