Unisphere-Data-ERX-System-MIB :: usdERXSysSlotAssociatedSlot

MIB Reference — IPNetwork Monitor · Updated September 14, 2026

All MIBsUnisphere-Data-ERX-System-MIBusdERXSysSlotAssociatedSlot

usdERXSysSlotAssociatedSlot

Module: Unisphere-Data-ERX-System-MIB

OID (symbolic): Unisphere-Data-ERX-System-MIB::usdERXSysSlotAssociatedSlot

OID (numeric): 1.3.6.1.4.1.4874.2.2.17.1.4.2.1.18

Node type: OBJECT-TYPE

Type: Integer32

Access: read-only

Description: If the module is a primary card and the spare is acting on its behalf, then the value of this object is the slot number of the associated spare.

If the module is a primary card and is active (not spared), then the value of this object is the cards actual slot number.

If the module is a spare card and it is active, then the value of this object is the slot number of the primary card that is being spared for.

If the module is a spare and it is inactive, then the value of this object is the its own slot number.

If module is not part of a redundancy group, or the slot is empty, the value of this object is 255.

What is usdERXSysSlotAssociatedSlot?

Reports the related slot number in a redundancy pairing: for an active primary it's its own slot, for a primary being covered it's the spare's slot, for an active spare it's the primary's slot, for an inactive spare it's its own slot, and 255 if not part of a redundancy group or the slot is empty. Admins use this to trace which physical slot is currently backing up which in an active failover situation.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.4874.2.2.17.1.4.2.1.18
snmpwalk -v2c -c public <target> Unisphere-Data-ERX-System-MIB::usdERXSysSlotAssociatedSlot

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.4874.2.2.17.1.4.2.1.18.1
snmpget -v2c -c public <target> Unisphere-Data-ERX-System-MIB::usdERXSysSlotAssociatedSlot.1

Start monitoring Juniper/Unisphere ERX Edge Router (chassis hardware-revision/software-version/redundancy status) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the Unisphere-Data-ERX-System-MIB::usdERXSysSlotAssociatedSlot OID value, configure state conditions and alerts, and monitor any Juniper/Unisphere ERX Edge Router (chassis hardware-revision/software-version/redundancy status) from a single console.

OID Breakdown

Upper-level ancestors (14 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
1.3.6.1.4.1.4874.2.2.17juniERXSysMIBJuniper-ERX-System-MIB
1.3.6.1.4.1.4874.2.2.17.1juniERXSysObjectsJuniper-ERX-System-MIB
1.3.6.1.4.1.4874.2.2.17.1.4juniERXSysSlotJuniper-ERX-System-MIB
1.3.6.1.4.1.4874.2.2.17.1.4.2juniERXSysSlotTableJuniper-ERX-System-MIB
1.3.6.1.4.1.4874.2.2.17.1.4.2.1juniERXSysSlotEntryJuniper-ERX-System-MIB
Numeric OIDNameModule
1.3.6.1.4.1.4874.2.2.17.1.4.2.1.18usdERXSysSlotAssociatedSlotUnisphere-Data-ERX-System-MIB