All MIBs › TEMPUSLXUNISON-MIB › gntpTimeFigureOfMerit
gntpTimeFigureOfMerit
Module: TEMPUSLXUNISON-MIB
OID (symbolic): TEMPUSLXUNISON-MIB::gntpTimeFigureOfMerit
OID (numeric): 1.3.6.1.4.1.13827.6.0.6
Node type: OBJECT-TYPE
Type: INTEGER
Access: read-only
Description: The Time Figure of Merit (TFOM) value ranges from 3 to 9 and indicates the current estimate of the worst case time error. It is a logarithmic scale, with each increment indicating a tenfold increase in the worst case time error boundaries.
The scale is referenced to a worst case time error of 100 picoseconds, equivalent to a TFOM of zero. During normal locked operation with GPS the TFOM is 3 and implies a worst case time error of 100 nanoseconds.
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 9, the NTP server will cease to send stratum 1 reply packets and an Alarm LED will be energized.
What is gntpTimeFigureOfMerit?
Reports the GPS-locked NTP server's Time Figure of Merit across a wider 3-9 logarithmic band than the CDMA version, since GPS can achieve better accuracy; normal locked GPS operation reads 3 (about 100 nanoseconds worst-case error), while 9 means the server will soon stop answering as stratum 1.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.13827.6.0.6 snmpwalk -v2c -c public <target> TEMPUSLXUNISON-MIB::gntpTimeFigureOfMerit
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.13827.6.0.6.1 snmpget -v2c -c public <target> TEMPUSLXUNISON-MIB::gntpTimeFigureOfMerit.1
Start monitoring EndRun Technologies Tempus LX/Unison GPS-synchronized NTP time server appliance (sync status/oscillator health) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the TEMPUSLXUNISON-MIB::gntpTimeFigureOfMerit OID value, configure state conditions and alerts, and monitor any EndRun Technologies Tempus LX/Unison GPS-synchronized NTP time server appliance (sync status/oscillator health) 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 |
|---|---|---|
| 1.3.6.1.4.1.13827.6 | tempuslxGntp | TEMPUSLXUNISON-MIB |
| 1.3.6.1.4.1.13827.6.0 | gntp | TEMPUSLXUNISON-MIB |
| 1.3.6.1.4.1.13827.6.0.6 | gntpTimeFigureOfMerit | TEMPUSLXUNISON-MIB |