ZHNSYSTEM :: sysSystemClockSource

MIB Reference — IPNetwork Monitor · Updated October 06, 2026

All MIBs › ZHNSYSTEM › sysSystemClockSource

sysSystemClockSource

Module: ZHNSYSTEM

OID (symbolic): ZHNSYSTEM::sysSystemClockSource

OID (numeric): 1.3.6.1.4.1.5504.2.5.2.1.1.18

Node type: OBJECT-TYPE

Type: SCS

Access: read-write

Description: Determines the system-level clock mode for ZNID devices.

uplink - the system will recover its clock from the configured uplink (e.g. GPON, SPF1, SFP2, etc.).

ds1 - the system will recover its clock from the configured sysDs1ClockSourcePort.

ieee1588 - the system will recover clock from the on-board 1588 clock circuitry.

What is sysSystemClockSource?

Selects where a ZNID device recovers its system clock from -- the configured network uplink (GPON/SFP), a DS1 port specified by sysDs1ClockSourcePort, or an onboard IEEE 1588 timing circuit.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.5504.2.5.2.1.1.18
snmpwalk -v2c -c public <target> ZHNSYSTEM::sysSystemClockSource

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.5504.2.5.2.1.1.18.1
snmpget -v2c -c public <target> ZHNSYSTEM::sysSystemClockSource.1

Set instance 1 (SNMPv2c):

snmpset -v2c -c private <target> 1.3.6.1.4.1.5504.2.5.2.1.1.18.1 s <value>

Start monitoring Zhone Technologies broadband access node, Zhone DSL/fiber gateway (device-identity/timing-sync-mode status) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the ZHNSYSTEM::sysSystemClockSource OID value, configure state conditions and alerts, and monitor any Zhone Technologies broadband access node, Zhone DSL/fiber gateway (device-identity/timing-sync-mode status) from a single console.

OID Breakdown

Upper-level ancestors (9 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
1.3.6.1.4.1.5504ZhoneBITSTORM-HP-160-MIB
1.3.6.1.4.1.5504.2zhoneProductZhone
1.3.6.1.4.1.5504.2.5zhoneWtnZhone
Numeric OIDNameModule
1.3.6.1.4.1.5504.2.5.2zhnSystemZHNSYSTEM
1.3.6.1.4.1.5504.2.5.2.1zhnSystemObjectsZHNSYSTEM
1.3.6.1.4.1.5504.2.5.2.1.1zhnSystemGeneralObjectsZHNSYSTEM
1.3.6.1.4.1.5504.2.5.2.1.1.18sysSystemClockSourceZHNSYSTEM