Juniper-ERX-System-MIB :: juniERXSysMemCapacity

MIB Reference — IPNetwork Monitor · Updated September 14, 2026

All MIBsJuniper-ERX-System-MIBjuniERXSysMemCapacity

juniERXSysMemCapacity

Module: Juniper-ERX-System-MIB

OID (symbolic): Juniper-ERX-System-MIB::juniERXSysMemCapacity

OID (numeric): 1.3.6.1.4.1.4874.2.2.17.1.1.21

Node type: OBJECT-TYPE

Type: Integer32

Access: read-only

Description: The total memory capacity of the system. Negative values are returned when the capacity exceeds 2147483647; interpret the negative 32-bit integer as an unsigned 32-bit integer value.

What is juniERXSysMemCapacity?

Reports the system's total memory capacity; because the value is a signed 32-bit integer, a capacity larger than 2147483647 bytes appears as a negative number that should be reinterpreted as unsigned. Use it as the denominator when converting juniERXSysMemUtilPct into an absolute memory figure.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.4874.2.2.17.1.1.21
snmpwalk -v2c -c public <target> Juniper-ERX-System-MIB::juniERXSysMemCapacity

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.4874.2.2.17.1.1.21.1
snmpget -v2c -c public <target> Juniper-ERX-System-MIB::juniERXSysMemCapacity.1

Start monitoring Juniper Networks ERX-series broadband edge router (deprecated system MIB) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the Juniper-ERX-System-MIB::juniERXSysMemCapacity OID value, configure state conditions and alerts, and monitor any Juniper Networks ERX-series broadband edge router (deprecated system MIB) 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
1.3.6.1.4.1.4874juniperUniJuniper-UNI-SMI
1.3.6.1.4.1.4874.2juniperUniMibsJuniper-UNI-SMI
1.3.6.1.4.1.4874.2.2juniMibsJuniper-MIBs
Numeric OIDNameModule
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
1.3.6.1.4.1.4874.2.2.17.1.1juniERXSysGeneralJuniper-ERX-System-MIB
1.3.6.1.4.1.4874.2.2.17.1.1.21juniERXSysMemCapacityJuniper-ERX-System-MIB