Common Alarms in RNC & Node-B (formatting should be done to make one line per entry)
Sl No Specific Problem Probable Cause Perceived
Severity Managed Object 1 AntennaBranch_AntennaProblemInBranchA EQUIPMENT_MALFUNCTION MAJOR AntennaBranch 2 AntennaBranch_AntennaProblemInBranchB EQUIPMENT_MALFUNCTION MAJOR AntennaBranch 3 AntennaBranch_AntennaSystemProblemInBra
nchA EQUIPMENT_MALFUNCTION MAJOR AntennaBranch
4 AntennaBranch_AntennaSystemProblemInBra
nchB EQUIPMENT_MALFUNCTION MAJOR AntennaBranch
5 AntennaBranch_FeederCurrentTooHighInBran
chA EQUIPMENT_MALFUNCTION MAJOR AntennaBranch
6 AntennaBranch_FeederCurrentTooHighInBran
chB EQUIPMENT_MALFUNCTION MAJOR AntennaBranch
7 AntennaBranch_FeederCurrentTooLowInBranc
hA EQUIPMENT_MALFUNCTION MAJOR AntennaBranch
8 AntennaBranch_FeederCurrentTooLowInBranc
hB EQUIPMENT_MALFUNCTION MAJOR AntennaBranch
9 AuxPlugInUnit_PiuConnectionLost EQUIPMENT_MALFUNCTION MAJOR AuxPlugInUnit 10 Carrier_RejectSignalFromHardware MESSAGE_NOT_EXPECTED MAJOR Carrier 11 Carrier_RxDiversityLost PERFORMANCE_DEGRADED MAJOR Carrier 12 Carrier_SignalNotReceivedWithinTime TIMEOUT_EXPIRED MAJOR Carrier 13 DbccDevice_GammaDownlinkFailure EQUIPMENT_MALFUNCTION MAJOR DbccDevice 14 DbccDeviceSet_GeneralHwError EQUIPMENT_MALFUNCTION MAJOR DbccDeviceSet 15 DbccDeviceSet_GeneralSwError SOFTWARE_ERROR MAJOR DbccDeviceSet 16 DbchDeviceSet_GeneralHwError EQUIPMENT_MALFUNCTION MAJOR DbchDeviceSet 17 DeviceGroup_FanFailure EQUIPMENT_MALFUNCTION MAJOR DeviceGroup 18 DeviceGroup_GammaDownlinkFailure EQUIPMENT_MALFUNCTION MAJOR DeviceGroup 19 DeviceGroup_GammaLinkFailure EQUIPMENT_MALFUNCTION MAJOR DeviceGroup 20 DeviceGroup_GammaUplinkFailure EQUIPMENT_MALFUNCTION MAJOR DeviceGroup 21 DeviceGroup_GeneralHwError EQUIPMENT_MALFUNCTION MAJOR DeviceGroup
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22 DeviceGroup_GeneralSwError SOFTWARE_ERROR MAJOR DeviceGroup
23 DeviceGroup_HwNotSupported CONFIGURATION_OR_CUSTOM
IZING_ERROR MAJOR DeviceGroup
24 DeviceGroup_HwSwMismatch VERSION_MISMATCH MAJOR DeviceGroup
25 DeviceGroup_LossOfSynch LOSS_OF_SYNCHRONISATION MAJOR DeviceGroup 26 DeviceGroup_PoorClockSignal TIMING_PROBLEM_M3100 MAJOR DeviceGroup 27 DeviceGroup_TemperatureExceptionallyHigh TEMPERATURE_UNACCEPTAB MAJOR DeviceGroup 28 DigitalCable_Disconnected EQUIPMENT_MALFUNCTION MAJOR DigitalCable 29 EDbchDeviceSet_GeneralHwError EQUIPMENT_MALFUNCTION MAJOR EDbchDeviceSet 30 EDbchDeviceSet_GeneralSwError SOFTWARE_ERROR MAJOR EDbchDeviceSet 31 Emergency Unlock of Software Licensing ALARM_INDICATION_SIGNAL MINOR Licensing 32 Equipment Protection Hardware Fault REPLACEABLE_UNIT_PROBLE
M MINOR ExchangeTermin
33 Ethernet Switch Port Fault LINK_FAILURE Major al EthernetSwitchP 34 ExternalTma_LnaDegradedInBranchA EQUIPMENT_MALFUNCTION MINOR ExternalTma 35 ExternalTma_LnaDegradedInBranchB EQUIPMENT_MALFUNCTION MINOR ExternalTma 36 ExternalTma_LnaFailureBranchA EQUIPMENT_MALFUNCTION MAJOR ExternalTma 37 ExternalTma_LnaFailureBranchB EQUIPMENT_MALFUNCTION MAJOR ExternalTma
38 Fan HW Fault COOLING_FAN_FAILURE MAJOR Fan
39 Fan SW Fault COOLING_FAN_FAILURE MAJOR Fan
40 FanDeviceGroup_GeneralHwError EQUIPMENT_MALFUNCTION MAJOR FanDeviceGroup 41 FanDeviceGroup_GeneralSwError SOFTWARE_ERROR MAJOR FanDeviceGroup 42 FcuDeviceGroup_FanFailure EQUIPMENT_MALFUNCTION MAJOR FcuDeviceGroup 43 FcuDeviceGroup_GeneralHwError EQUIPMENT_MALFUNCTION MAJOR FcuDeviceGroup 44 FcuDeviceGroup_GeneralSwError SOFTWARE_ERROR MAJOR FcuDeviceGroup 45 FuDeviceGroup_ExternalUnitFailure EQUIPMENT_MALFUNCTION MAJOR FuDeviceGroup 46 FuDeviceGroup_GeneralHwError EQUIPMENT_MALFUNCTION MAJOR FuDeviceGroup 47 FuDeviceGroup_GeneralSwError SOFTWARE_ERROR MAJOR FuDeviceGroup 48 GammaCable_GammaDownlinkFailure EQUIPMENT_MALFUNCTION MAJOR GammaCable 49 GammaCable_GammaUplinkFailure EQUIPMENT_MALFUNCTION MAJOR GammaCable 50 HsDbchDeviceSet_GeneralSwError SOFTWARE_ERROR MAJOR HsDbchDeviceS 51 IMA Config Aborted at Far End REMOTE_NODE_TRANSMISSIO et
N_ERROR MAJOR ImaGroup
52 IMA Group Blocked at Far End REMOTE_NODE_TRANSMISSIO MAJOR ImaGroup 53 IMA Group Configuration Aborted LOCAL_NODE_TRANSMISSION_
ERROR MAJOR ImaGroup
54 IMA Group Insufficient Links LOCAL_NODE_TRANSMISSION_
ERROR MAJOR ImaGroup
55 IMA Group Insufficient Links at Far End REMOTE_NODE_TRANSMISSIO
N_ERROR MAJOR ImaGroup
56 IMA Link Reception Unusable at Far End REMOTE_NODE_TRANSMISSIO
N_ERROR WARNING ImaLink
57 IMA Link Transmission Misconnected LOCAL_NODE_TRANSMISSION_
ERROR MAJOR ImaLink
58 License Key File Fault CONFIGURATION_OR_CUSTOM MAJOR Licensing
59 Loss of Frame LOSS_OF_FRAME MAJOR Os155SpiTtp
60 Loss of IMA Frame LOCAL_NODE_TRANSMISSION_
ERROR MAJOR ImaLink
61 Loss of Synch Reference Redundancy REPLACEABLE_UNIT_PROBLE MINOR Synchronization 62 Loss of System Clock REPLACEABLE_UNIT_PROBLE
M CRITICAL Synchronization
63 Loss of System Clock Redundancy REPLACEABLE_UNIT_PROBLE
M WARNING Synchronization
64 Loss of Tracking REPLACEABLE_UNIT_PROBLE MAJOR Synchronization 65 MS Excessive Bit Error Rate EXCESSIVE_BIT_ERROR_RATE MAJOR Os155SpiTtp 66 MS Remote Defect Indication FAR_END_RECEIVER_FAILURE WARNING Os155SpiTtp
67 MTP3b Link Out of Service UNAVAILABLE WARNING Mtp3bSlAnsi
68 MTP3b Link Out of Service UNAVAILABLE WARNING Mtp3bSlChina
69 MTP3b Link Out of Service UNAVAILABLE WARNING Mtp3bSlItu
70 MTP3b Link Out of Service UNAVAILABLE WARNING Mtp3bSlTtc
71 MTP3b Route Set Unavailable ROUTING_FAILURE MAJOR Mtp3bSrs 72 NbapCommon_Layer3SetupFailure COMMUNICATION_SUBSYSTEM
_FAILURE CRITICAL NbapCommon
73 NTP Server Reachability Fault UNAVAILABLE Major IpSyncRef 74 PDH Alarm Indication Signal ALARM_INDICATION_SIGNAL WARNING E1PhysPathTer 75 PDH Alarm Indication Signal ALARM_INDICATION_SIGNAL WARNING E1Ttp 76 PDH Alarm Indication Signal ALARM_INDICATION_SIGNAL WARNING E3PhysPathTer 77 PDH Alarm Indication Signal ALARM_INDICATION_SIGNAL WARNING J1PhysPathTerm 78 PDH Alarm Indication Signal ALARM_INDICATION_SIGNAL WARNING T1PhysPathTer 79 PDH Alarm Indication Signal ALARM_INDICATION_SIGNAL WARNING T1Ttp m 80 Power Failure Left Slot POWER_PROBLEM_M3100 MAJOR Subrack 81 RaxDeviceGroup_GammaLinkFailure CONFIGURATION_OR_CUSTOM
IZING_ERROR MAJOR RaxDeviceGroup
82 RaxDeviceGroup_GeneralHwError EQUIPMENT_MALFUNCTION MAJOR RaxDeviceGroup
121
83 RaxDeviceGroup_GeneralSwError EQUIPMENT_MALFUNCTION MAJOR RaxDeviceGroup 84 RaxDeviceGroup_HwNotSupported CONFIGURATION_OR_CUSTOM
IZING_ERROR MAJOR RaxDeviceGroup
85 RbsSynchronization_SignalNotReceivedWithin
Time TIMEOUT_EXPIRED MAJOR RbsSynchronizat
86 RbsSynchronization_TimingUnitsNotSynchroni ion
zed REPLACEABLE_UNIT_PROBLE
M WARNING RbsSynchronizat
87 RetDevice_GeneralHwError EQUIPMENT_MALFUNCTION MAJOR ion RetDevice
88 RetDevice_GeneralSwError SOFTWARE_ERROR MAJOR RetDevice
89 RetDevice_RetFailure EQUIPMENT_MALFUNCTION MAJOR RetDevice 90 RuDeviceGroup_ExternalUnitFailure EQUIPMENT_MALFUNCTION MAJOR RuDeviceGroup 91 RuDeviceGroup_GammaDownlinkFailure EQUIPMENT_MALFUNCTION MAJOR RuDeviceGroup 92 RuDeviceGroup_GammaUplinkFailure EQUIPMENT_MALFUNCTION MAJOR RuDeviceGroup 93 RuDeviceGroup_GeneralHwError EQUIPMENT_MALFUNCTION MAJOR RuDeviceGroup 94 RuDeviceGroup_GeneralSwError SOFTWARE_ERROR MAJOR RuDeviceGroup 95 RuDeviceGroup_HwNotSupported CONFIGURATION_OR_CUSTOM MAJOR RuDeviceGroup 96 RuDeviceGroup_LossOfSynch LOSS_OF_SYNCHRONISATION MAJOR RuDeviceGroup 97 RuifDeviceGroup_ClockDistributionMalfunction CLOCK_SYNCHRONISATION_P
ROBLEM MAJOR RuifDeviceGroup
98 RuifDeviceGroup_DpProgramNotConfigured CONFIGURATION_OR_CUSTOM MAJOR RuifDeviceGroup 99 RuifDeviceGroup_GammaDownlinkFailure EQUIPMENT_MALFUNCTION MAJOR RuifDeviceGroup 100 RuifDeviceGroup_GammaUplinkFailure EQUIPMENT_MALFUNCTION MAJOR RuifDeviceGroup 101 RuifDeviceGroup_GeneralHwError EQUIPMENT_MALFUNCTION MAJOR RuifDeviceGroup 102 RuifDeviceGroup_GeneralSwError SOFTWARE_ERROR MAJOR RuifDeviceGroup 103 RuifDeviceGroup_PoorClockSignal TIMING_PROBLEM_M3100 MAJOR RuifDeviceGroup 104 Synch Reference Not Reliable CLOCK_SYNCHRONISATION_P
ROBLEM MAJOR Synchronization
105 Synch Reference Path HW Fault CLOCK_SYNCHRONISATION_P
ROBLEM MAJOR Synchronization
106 System Clock in Holdover Mode REPLACEABLE_UNIT_PROBLE
M MAJOR Synchronization
107 System Clock Quality Degradation REPLACEABLE_UNIT_PROBLE CRITICAL Synchronization 108 TimDevice_GeneralHwError EQUIPMENT_MALFUNCTION MAJOR TimDevice
109 TimDevice_GeneralSwError SOFTWARE_ERROR MAJOR TimDevice
110 TimDevice_PhaseLockFailure EQUIPMENT_MALFUNCTION MAJOR TimDevice 111 TxDeviceGroup_GammaLinkFailure EQUIPMENT_MALFUNCTION MAJOR TxDeviceGroup 112 TxDeviceGroup_GeneralHwError EQUIPMENT_MALFUNCTION MAJOR TxDeviceGroup 113 TxDeviceGroup_GeneralSwError SOFTWARE_ERROR MAJOR TxDeviceGroup 114 TxDeviceGroup_HwNotSupported CONFIGURATION_OR_CUSTOM
IZING_ERROR MAJOR TxDeviceGroup
115 TxDeviceGroup_LossOfSynch LOSS_OF_SYNCHRONISATION MAJOR TxDeviceGroup 116 XalmDeviceGroup_GeneralHwError EQUIPMENT_MALFUNCTION MAJOR XalmDeviceGrou 117 XalmDeviceGroup_GeneralSwError SOFTWARE_ERROR MAJOR p XalmDeviceGrou 118 XalmDeviceGroup_SoftwareDownloadFailure SOFTWARE_DOWNLOAD_FAIL p
URE MAJOR XalmDeviceGrou
1. For most of the s/w (Software) alarms we need to give restart to plugin unit. For eg. if there is alarm in RAX, TX or RUIF we need to give cold restart to the Boards.
For e.g, if there is alarm in rax-slot7 then we need to give restart
> acc 000700 restart for p5, p6 & p6.1 sw versions (Slot 07)
> acc 000700 manualrestart for p7 sw versions
2. If there is alarm in Dbcc, Edbch, ESc or HsDbch devices then cold restart should be given to Tx Board.
> acc 001100 restart for p5, p6 & p6.1 sw versions (Slot 11)
> acc 001100 manualrestart for p7 sw versions
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3. For alarm related to carrier we need to give cold restart to corresponding RU card.
> acl plugin (for checking proxy number of aux plugin unit) Suppose there is alarm in RbsSubrack=RU1,RbsSlot=2 then
> acc “proxy no” restartAuxUnit
4. For gamma link alarm we need to check managed object & then accordingly need to give restart to the board.
5. For Hardware alarms we need to power off the board from PDU and then power on & if alarm remains we need to check physically in node B whether Red LED is glowing or not. If Red LED is glowing then we need to replace the board.
6. For AntennaBranch_FeederCurrentTooHigh or low alarms we need to check VSWR in both the feeders of a particular sector. Also we need to keep in mind that the difference in VSWR between two feeders should be very low.
7. License related alarms such as Emergency Unlock of Software Licensing generated because of setting emergency mode. This should be avoided as emergency state can be used once only. In emergency state site will be up for 7 days. Also License Key File Fault alarm generated if license file corrupted or missing. For solving the issue load new license file.
8. NbapCommon_Layer3SetupFailure alarm is a critical one. Alarm comes due problem in Iublink between Node B & RNC. Steps given below
> st nbap (For checking status of Nbap(Node B Application Protocol)
We need to check iub controlPlaneTransportOption & userPlaneTransportOption at Node B and both should be same as in RNC against the same iublink. If everything is alright then give restart to CBU using
> acc 0 manualrestart or restart as per sw version of node B
>For IP sites no need to check nbap-c & nbap-d at RNC end. If Iublink is down then try to ping IpAccessHostGpb(Iub CP) of Node B. To get Iub CP ip of Node B use
> get iub_0001 (to know iub controlPlaneTransportOption & userPlaneTransportOption and note down remotecpipaddress1)
> acl ip note down proxy number of ETMFX-board Then use command
> acc “proxy no”ping if result is‘no answer’then check media & if result is “alive” then login to node B & check alarms
Also check sync and sync related alarms resolving technique described below.
9. For imagroup related alarm in ATM based Node b use
> st imagroup (for checking status of imagroup & 3 ImaLinks)
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If problem at far end use the same command at RNC for direct site or at sub-hub as per ATND. This alarm arises normally due to transmission fault.
10. For ATM based node B & PDH related alarms use
> lst E1 for checking E1
> pget E1 for checking error in media if error found E1 should be blocked immediately using
>lbl “proxy for faulty E1” After there is no error in E1 then for deblocking
>ldeb“proxy for faulty E1”
>lst vc for checking status of all VC (Virtual Circuits)
VC 32 & 33 used for mub_link(for login purpose), 36 & 37 for Nbap-c & Nbap-d, 38 for AAL5 , 39 for CS and PS with R99 & 46 for HSDPA.
> lst aal2 for checking aal2(ATM Adaptation Layer 2)
> lst aal5 for checking aal5(ATM Adaptation Layer 5)
>get aal2sp for checking a2ea need to verify aal2routingcase in RNC using
>pr aal2routingcase
124 11. For sync related alarms 1st we need to use
> get sync at Node B end
For NTP Server Reachability Fault alarm arises due to media issue in Node B with IP connectivity.
For System Clock in Holdover Mode alarm we need to check media.
125
For System Clock in Free-running Mode alarm we need to check sync status & if status is ok then give restart to CBU using acc 0 restart or manualrestart.
If status of either of the parameter nodeIsStable & nodeIsSynchronized is false then also we need to give restart to CBU
Synch Reference Not Reliable alarm normally arises in Node B with IP connectivity.
Remedy is to check syncRefStatus at RNC end using
>get synchronization (at RNC end)
Normally if there is loss of tracking alarm in RNC then Synch Reference Not Reliable alarm arises in Node B.
For loss of tracking alarm we need to check status of TimDevice using
> get TimDevice for checking status of TUB card at RNC .Also phusically it can be seen.
If.
green LED of TUB card blinks then there should be sync issue. Media should be checked properly and clock of transmission system as well as of MGW should be checked .Command can be used in Node B also.
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Status of timing device should be as above print. If standbyStatus is Cold_Standby then also check clock of transmission system as well as of MGW should be checked.
12. For MTP3b Link Out of Service alarm we need to check atmport status of slot-6 & 7. If down then we need to check media step by step upto core network.
13. For NodeSynch_Phase_Difference_Threshold to high we need to check power level of media Tx & Rx at RNC and also at Node B end. Power level should be between -12 to -18 dbm for optimal performance.