WINDOWS-NT-PERFORMANCE :: memoryAvailableBytes

MIB Reference — IPNetwork Monitor · Updated September 14, 2026

All MIBsWINDOWS-NT-PERFORMANCEmemoryAvailableBytes

memoryAvailableBytes

Module: WINDOWS-NT-PERFORMANCE

OID (symbolic): WINDOWS-NT-PERFORMANCE::memoryAvailableBytes

OID (numeric): 1.3.6.1.4.1.311.1.1.3.1.1.1.1

Node type: OBJECT-TYPE

Type: INTEGER

Access: read-only

Description: Available Bytes displays the size of the virtual memory currently on the Zeroed, Free, and Standby lists. Zeroed and Free memory is ready for use, with Zeroed memory cleared to zeros. Standby memory is memory removed from a process's Working Set but still available. Notice that this is an instantaneous count, not an average over the time interval.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.311.1.1.3.1.1.1.1
snmpwalk -v2c -c public <target> WINDOWS-NT-PERFORMANCE::memoryAvailableBytes

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.311.1.1.3.1.1.1.1.1
snmpget -v2c -c public <target> WINDOWS-NT-PERFORMANCE::memoryAvailableBytes.1

Start monitoring Windows NT/Server host running the Microsoft SNMP service (CPU/memory/disk-I/O performance-counter status) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the WINDOWS-NT-PERFORMANCE::memoryAvailableBytes OID value, configure state conditions and alerts, and monitor any Windows NT/Server host running the Microsoft SNMP service (CPU/memory/disk-I/O performance-counter 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
1.3.6.1.4.1.311microsoftInternetServer-MIB
1.3.6.1.4.1.311.1softwareInternetServer-MIB
1.3.6.1.4.1.311.1.1systemsMSFT-MIB
1.3.6.1.4.1.311.1.1.3osMSFT-MIB
1.3.6.1.4.1.311.1.1.3.1windowsNTMSFT-MIB
1.3.6.1.4.1.311.1.1.3.1.1workstationMSFT-MIB
Numeric OIDNameModule
1.3.6.1.4.1.311.1.1.3.1.1.1memoryWINDOWS-NT-PERFORMANCE
1.3.6.1.4.1.311.1.1.3.1.1.1.1memoryAvailableBytesWINDOWS-NT-PERFORMANCE