All MIBs › UCD-SNMP-MIB › memTotalFree
memTotalFree
Module: UCD-SNMP-MIB
OID (symbolic): UCD-SNMP-MIB::memTotalFree
OID (numeric): 1.3.6.1.4.1.2021.4.11
Node type: OBJECT-TYPE
Type: Integer32
Access: read-only
Description:
The total amount of memory free or available for use on this host. This value typically covers both real memory and swap space or virtual memory.
What is memTotalFree?
This object reports the total amount of free memory currently available on the system, combining both physical RAM and swap/virtual memory. The value is measured in kilobytes and represents memory available for processes to allocate. System administrators monitor this to ensure adequate free memory, detect memory leaks, and plan capacity upgrades before memory exhaustion occurs.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.2021.4.11 snmpwalk -v2c -c public <target> UCD-SNMP-MIB::memTotalFree
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.2021.4.11.1 snmpget -v2c -c public <target> UCD-SNMP-MIB::memTotalFree.1
OID Breakdown
| Numeric OID | Name | Module |
|---|---|---|
| 1 | iso | LANART-AGENT |
| 1.3 | org | BIANCA-BRICK-PPP-MIB |
| 1.3.6 | dod | BIANCA-BRICK-PPP-MIB |
| 1.3.6.1 | internet | BIANCA-BRICK-PPP-MIB |
| 1.3.6.1.4 | private | BIANCA-BRICK-PPP-MIB |
| 1.3.6.1.4.1 | enterprises | ANIROOT-MIB |
| 1.3.6.1.4.1.2021 | ucdavis | UCD-SNMP-MIB |
| 1.3.6.1.4.1.2021.4 | memory | UCD-SNMP-MIB |
| 1.3.6.1.4.1.2021.4.11 | memTotalFree | UCD-SNMP-MIB |