All MIBs › ACMEPACKET2-ENVMON-MIB › apSysARPCapacity
apSysARPCapacity
Module: ACMEPACKET2-ENVMON-MIB
OID (symbolic): ACMEPACKET2-ENVMON-MIB::apSysARPCapacity
OID (numeric): 1.3.6.1.4.1.9148.3.2.1.1.8
Node type: OBJECT-TYPE
Type: SysMgmtPercentage
Access: read-only
Description: The percentage of ARP table (in CAM) utilization.
What is apSysARPCapacity?
This OID shows how full the Address Resolution Protocol table is, as a percentage of available space. Engineers watch this to detect excessive ARP entries, which could indicate a network scanning attack or misconfiguration. For example, '72%' means the ARP table is moderately full and approaching potential saturation.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.9148.3.2.1.1.8 snmpwalk -v2c -c public <target> ACMEPACKET2-ENVMON-MIB::apSysARPCapacity
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.9148.3.2.1.1.8.1 snmpget -v2c -c public <target> ACMEPACKET2-ENVMON-MIB::apSysARPCapacity.1
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OID Breakdown
Upper-level ancestors (8 from the standard OID tree / other modules)
| Numeric OID | Name | Module |
|---|---|---|
| 1 | iso | LANART-AGENT |
| 1.3 | org | AirPair-MIB |
| 1.3.6 | dod | AirPair-MIB |
| 1.3.6.1 | internet | AirPair-MIB |
| 1.3.6.1.4 | private | AirPair-MIB |
| 1.3.6.1.4.1 | enterprises | AirPair-MIB |
| 1.3.6.1.4.1.9148 | acmepacket | ACMEPACKET-SMI |
| 1.3.6.1.4.1.9148.3 | acmepacketMgmt | ACMEPACKET-SMI |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.9148.3.2 | apSystemManagementModule | ACMEPACKET2-ENVMON-MIB |
| 1.3.6.1.4.1.9148.3.2.1 | apSysMgmtMIBObjects | ACMEPACKET2-ENVMON-MIB |
| 1.3.6.1.4.1.9148.3.2.1.1 | apSysMgmtMIBGeneralObjects | ACMEPACKET2-ENVMON-MIB |
| 1.3.6.1.4.1.9148.3.2.1.1.8 | apSysARPCapacity | ACMEPACKET2-ENVMON-MIB |