Unisphere-Data-System-Clock-MIB :: usdNtpSysClockRootDelay

MIB Reference — IPNetwork Monitor · Updated September 14, 2026

All MIBsUnisphere-Data-System-Clock-MIBusdNtpSysClockRootDelay

usdNtpSysClockRootDelay

Module: Unisphere-Data-System-Clock-MIB

OID (symbolic): Unisphere-Data-System-Clock-MIB::usdNtpSysClockRootDelay

OID (numeric): 1.3.6.1.4.1.4874.2.2.56.2.1.4

Node type: OBJECT-TYPE

Type: UsdNtpClockSignedTime

Access: read-only

Description: This indicates the NTP time message total Network roundtrip delay to the primary reference source at the root of the synchronization subnet, in seconds. Note that this variable can take on both positive and negative values, depending on clock precision and skew.

What is usdNtpSysClockRootDelay?

The total network round-trip delay, in seconds, to the primary reference clock at the root of the NTP synchronization subnet; it can be positive or negative depending on clock precision and skew. A large or erratic root delay suggests network path issues between this device and its upstream time source.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.4874.2.2.56.2.1.4
snmpwalk -v2c -c public <target> Unisphere-Data-System-Clock-MIB::usdNtpSysClockRootDelay

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.4874.2.2.56.2.1.4.1
snmpget -v2c -c public <target> Unisphere-Data-System-Clock-MIB::usdNtpSysClockRootDelay.1

Start monitoring Unisphere Networks (Juniper E-series/ERX) routing switches (system clock/NTP sync-state status) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the Unisphere-Data-System-Clock-MIB::usdNtpSysClockRootDelay OID value, configure state conditions and alerts, and monitor any Unisphere Networks (Juniper E-series/ERX) routing switches (system clock/NTP sync-state status) from a single console.

OID Breakdown

Upper-level ancestors (12 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
1.3.6.1.4.1.4874juniperUniJuniper-UNI-SMI
1.3.6.1.4.1.4874.2juniperUniMibsJuniper-UNI-SMI
1.3.6.1.4.1.4874.2.2juniMibsJuniper-MIBs
1.3.6.1.4.1.4874.2.2.56juniSysClockMIBJuniper-MIBs
1.3.6.1.4.1.4874.2.2.56.2juniNtpObjectsJuniper-System-Clock-MIB
1.3.6.1.4.1.4874.2.2.56.2.1juniNtpSysClockJuniper-System-Clock-MIB
Numeric OIDNameModule
1.3.6.1.4.1.4874.2.2.56.2.1.4usdNtpSysClockRootDelayUnisphere-Data-System-Clock-MIB