DEVICE-MIB :: avgBlockSizeFree

MIB Reference — IPNetwork Monitor · Updated September 14, 2026

All MIBsDEVICE-MIBavgBlockSizeFree

avgBlockSizeFree

Module: DEVICE-MIB

OID (symbolic): DEVICE-MIB::avgBlockSizeFree

OID (numeric): 1.3.6.1.4.1.5812.1.5.3

Node type: OBJECT-TYPE

Type: Integer32

Access: read-only

Description: The average block size that is free in the system memory

What is avgBlockSizeFree?

This reports the average size, in bytes, of the free memory blocks in the system heap. A shrinking average alongside stable numBytesFree can indicate memory fragmentation building up even though total free memory looks fine.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.5812.1.5.3
snmpwalk -v2c -c public <target> DEVICE-MIB::avgBlockSizeFree

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.5812.1.5.3.1
snmpget -v2c -c public <target> DEVICE-MIB::avgBlockSizeFree.1

Start monitoring chassis-based network devices with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the DEVICE-MIB::avgBlockSizeFree OID value, configure state conditions and alerts, and monitor any chassis-based network devices from a single console.

OID Breakdown

Upper-level ancestors (8 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
1.3.6.1.4.1.5812coriolisMibsCORIOLIS-MIB
1.3.6.1.4.1.5812.1deviceCORIOLIS-MIB
Numeric OIDNameModule
1.3.6.1.4.1.5812.1.5sysMemoryDEVICE-MIB
1.3.6.1.4.1.5812.1.5.3avgBlockSizeFreeDEVICE-MIB