In Ericsson NR equipment, how can we verify which synchronization source is actually being used for Time and Phase synchronization?
Specifically, how can we check whether the node is synchronized through GNSS or through IEEE 1588v2 (PTP)?
Which Managed Objects (MOs) or parameters in the Ericsson configuration should be checked to determine the active synchronization source?
You can check the synchronization configuration in the following MO path:
First go to Time=1 Managed Object
dn ManagedElement=1, SystemFunctions=1, Time=1
Run the show command below
show -v -r
This will show all the attributes and child objects under that particular manged object recursively and verbosely(show -v -r).This will provide you maximum information under that particular MO.
Hi, @A_R, there is command in amos:
***************************************************************************************
sts[c]
***************************************************************************************
Display state and configuration of Network Synchronization.
The printout is read from the Synchronization MO on CPP nodes and all children MOs of Synchronization/Ntp/Ptp on COM nodes.
The "c" option is to print the output in CSV format.
Printout format CPP
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The first line corresponds to the value of the attribute "nodeSystemClock".
If the node is part of a Node Group Synchronization cluster then the next line will indicate the node group role (provider or receiver).
The remaining lines correspond to the values of the attributes "syncReference", "syncRefPriority", "syncRefActivity", "syncRefStatus".
Examples:
RNC01> sts
SystemClock: LOCKED_MODE
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Prio Activity RefState AdmState OpState SyncReference
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1 ACTIVE OK UNLOCKED ENABLED Subrack=MS,Slot=4,PlugInUnit=1,TimingUnit=1,TuSyncRef=1
2 INACTIVE OK UNLOCKED ENABLED Subrack=ES-2,Slot=2,PlugInUnit=1,ExchangeTerminal=1,Os155SpiTtp=pp1
3 INACTIVE OK UNLOCKED ENABLED Subrack=ES-2,Slot=27,PlugInUnit=1,ExchangeTerminal=1,Os155SpiTtp=pp1
4 INACTIVE OK UNLOCKED ENABLED Subrack=ES-3,Slot=2,PlugInUnit=1,ExchangeTerminal=1,Os155SpiTtp=pp1
5 INACTIVE OK UNLOCKED ENABLED Subrack=ES-3,Slot=27,PlugInUnit=1,ExchangeTerminal=1,Os155SpiTtp=pp1
RBS14> sts
SystemClock: HOLD_OVER_MODE
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Prio Activity RefState AdmState OpState SyncReference
-------------------------------------------------------------------------------------
1 INACTIVE FAILED UNLOCKED DISABLED IpAccessHostEt=1,IpSyncRef=1
2 INACTIVE FAILED UNLOCKED DISABLED IpAccessHostEt=1,IpSyncRef=2
Printout format MSRBS
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The first line indicates the clock state in RadioEquipmentClock MO
If the node is part of a Node Group Synchronization cluster then the next line will indicate the node group role (provider or receiver).
The table shows the attributes of each RadioEquipmentClockReference MO.
The priority is marked with an asterisk to indicated the active Reference.
The MO referred by the "encapsulation" attribute is shown on the right together with some of its attributes, in brackets.
Examples:
MSRBS1> sts
radioClockState : FREQUENCY_LOCKED
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Prio ST syncRefType refStatus opQualLevel SyncReference
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*1 1 SYNC_E NO_FAULT PRC Synchronization=1,SyncEthInput=TN_B (SFP_OPTICAL EthernetPort=TN_B)
2 1 FREQUENCY_PORT NO_FAULT PRC Synchronization=1,FrequencySyncIO=1 (FREQUENCY_1PPS FieldReplaceableUnit=1,SyncPort=1)
MSRBS2> sts
radioClockState : FREQUENCY_LOCKED
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Prio ST syncRefType refStatus opQualLevel SyncReference
-------------------------------------------------------------------------------------
2 0 NTP_FREQUENCY NTP_FAULT QL_UNKNOWN Ntp=1,NtpFrequencySync=1 (192.168.250.101:32751 Router=OAM,InterfaceIPv4=TN_B_oam,AddressIPv4=TN_B_oam)
*3 1 PTP_FREQUENCY NO_FAULT PRC Ptp=1,BoundaryOrdinaryClock=PTP_FREQUENCY (G_8265_1 Router=OAM,InterfaceIPv4=TN_B_oam,AddressIPv4=TN_B_oam)
4 1 PTP_FREQUENCY NO_FAULT PRC Ptp=1,BoundaryOrdinaryClock=PTP_FREQUENCY_IPV6 (G_8265_1 Router=OAM,InterfaceIPv6=TN_B_oam_ipv6,AddressIPv6=TN_B_oamipv6add)
5 1 GNSS_RECEIVER NO_FAULT GNSS Synchronization=1,TimeSyncIO=GPS (FieldReplaceableUnit=1,SyncPort=1)
7 1 PTP_TIME PTP_FAULT QL_UNKNOWN Ptp=1,BoundaryOrdinaryClock=PTP_TIME (IEEE_1588_J3 EthernetPort=TN_A)