DEVICE-MIB :: systimeTimingMode

MIB Reference — IPNetwork Monitor · Updated September 14, 2026

All MIBsDEVICE-MIBsystimeTimingMode

systimeTimingMode

Module: DEVICE-MIB

OID (symbolic): DEVICE-MIB::systimeTimingMode

OID (numeric): 1.3.6.1.4.1.5812.1.3.1

Node type: OBJECT-TYPE

Type: INTEGER

Access: read-write

Description: The type of timing used by the device.

External (default for OptiFlow 5000) - Primary Clock Source is always BITS1. - Secondary Clock Source is always BITS2.

Line (default for OptiFlow 3000/3500) - Primary Clock Source may be a switch module or an I/O module. - Secondary Clock Source may be a switch module, an I/O module or the internal oscillator.

Freerun - Clock source is the internal oscillator (Primary Clock Source and Secondary Clock Source not used).

What is systimeTimingMode?

This selects the chassis's overall timing source model: tmExt (external BITS1/BITS2 clock sources, default on OptiFlow 5000), tmLine (line-derived timing from a switch/I-O module, default on OptiFlow 3000/3500), or tmFreerun (internal oscillator only). An admin sets this based on chassis model and whether an external timing reference is available in the facility.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.5812.1.3.1
snmpwalk -v2c -c public <target> DEVICE-MIB::systimeTimingMode

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.5812.1.3.1.1
snmpget -v2c -c public <target> DEVICE-MIB::systimeTimingMode.1

Set instance 1 (SNMPv2c):

snmpset -v2c -c private <target> 1.3.6.1.4.1.5812.1.3.1.1 i <value>

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OID Breakdown

Upper-level ancestors (8 from the standard OID tree / other modules)
Numeric OIDNameModule
1isoLANART-AGENT
1.3orgAirPair-MIB
1.3.6dodAirPair-MIB
1.3.6.1internetAirPair-MIB
1.3.6.1.4privateAirPair-MIB
1.3.6.1.4.1enterprisesAirPair-MIB
1.3.6.1.4.1.5812coriolisMibsCORIOLIS-MIB
1.3.6.1.4.1.5812.1deviceCORIOLIS-MIB
Numeric OIDNameModule
1.3.6.1.4.1.5812.1.3systimeDEVICE-MIB
1.3.6.1.4.1.5812.1.3.1systimeTimingModeDEVICE-MIB