All MIBs › MERIDIAN2-MIB › gpsTimeFigureOfMeritFaultLevel
gpsTimeFigureOfMeritFaultLevel
Module: MERIDIAN2-MIB
OID (symbolic): MERIDIAN2-MIB::gpsTimeFigureOfMeritFaultLevel
OID (numeric): 1.3.6.1.4.1.13827.14.2.55
Node type: OBJECT-TYPE
Type: INTEGER
Access: read-only
Description: The Time Figure of Merit (TFOM) Fault Level ranges from 4 to 9 and indicates the current threshold TFOM value for setting the Signal Loss Bit in the Fault Status byte. During normal locked operation the TFOM is 3 and implies a worst case time error of 100 nanoseconds. The factory default TFOM Fault Level is 9.
During periods of signal loss, the GPS sub-system will compute an extrapolated worst case time error. One hour after the worst case time error has reached the value equivalent to a TFOM of TFOM Fault Level, the NTP server will cease to send stratum 1 reply packets and an Alarm LED will be energized.
What is gpsTimeFigureOfMeritFaultLevel?
The configured TFOM threshold (4 through 9, factory default 9) at which the unit sets the Signal Loss fault bit; during normal GPS-locked operation TFOM sits at 3 (about 100 nanoseconds worst-case error), and once TFOM has sat at or above this configured fault level for a full hour during a signal outage, the server stops sending stratum-1 replies and lights the Alarm LED.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.13827.14.2.55 snmpwalk -v2c -c public <target> MERIDIAN2-MIB::gpsTimeFigureOfMeritFaultLevel
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.13827.14.2.55.1 snmpget -v2c -c public <target> MERIDIAN2-MIB::gpsTimeFigureOfMeritFaultLevel.1
Start monitoring EndRun Technologies Meridian II GPS-disciplined time/frequency reference with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the MERIDIAN2-MIB::gpsTimeFigureOfMeritFaultLevel OID value, configure state conditions and alerts, and monitor any EndRun Technologies Meridian II GPS-disciplined time/frequency reference from a single console.
OID Breakdown
Upper-level ancestors (7 from the standard OID tree / other modules)
| Numeric OID | Name | Module |
|---|---|---|
| 1 | iso | LANART-AGENT |
| 1.3 | org | AirPair-MIB |
| 1.3.6 | dod | AirPair-MIB |
| 1.3.6.1 | internet | AirPair-MIB |
| 1.3.6.1.4 | private | AirPair-MIB |
| 1.3.6.1.4.1 | enterprises | AirPair-MIB |
| 1.3.6.1.4.1.13827 | endRunTechnologiesMIB | ENDRUNTECHNOLOGIES-MIB |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.13827.14 | meridian2GPS | MERIDIAN2-MIB |
| 1.3.6.1.4.1.13827.14.2 | gps | MERIDIAN2-MIB |
| 1.3.6.1.4.1.13827.14.2.55 | gpsTimeFigureOfMeritFaultLevel | MERIDIAN2-MIB |