All MIBs › HC-ALARM-MIB › hcAlarmVariable
hcAlarmVariable
Module: HC-ALARM-MIB
OID (symbolic): HC-ALARM-MIB::hcAlarmVariable
OID (numeric): 1.3.6.1.2.1.16.29.1.1.1.1.3
Node type: OBJECT-TYPE
Type: VariablePointer
Access: read-create
Description: The object identifier of the particular variable to be sampled. Only variables that resolve to an ASN.1 primitive type of INTEGER (INTEGER, Integer32, Counter32, Counter64, Gauge, or TimeTicks) may be sampled.
Because SNMP access control is articulated entirely in terms of the contents of MIB views, no access control mechanism exists that can restrict the value of this object to identify only those objects that exist in a particular MIB view. Because there is thus no acceptable means of restricting the read access that could be obtained through the alarm mechanism, the probe must only grant write access to this object in those views that have read access to all objects on the probe.
This object may not be modified if the associated hcAlarmStatus object is equal to active(1).
What is hcAlarmVariable?
This is the OID of the specific MIB variable being sampled by this alarm entry, restricted to integer-valued types like Counter32, Counter64, Gauge, or TimeTicks. Because SNMP access control operates at the MIB-view level, the agent only grants write access to this object in views that already have read access to everything, preventing it from being used to probe restricted data. Pointing hcAlarmVariable at an interface's inbound-octets counter instance sets up threshold alarms on that interface's traffic volume.
OID Breakdown
Upper-level ancestors (7 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 |
| 1.3.6.1.2 | mgmt | APERTUS-NPG-MIB |
| 1.3.6.1.2.1 | mib_2 | AXON-MIB |
| 1.3.6.1.2.1.16 | rmon | ITOUCHHUB |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.2.1.16.29 | hcAlarmMIB | HC-ALARM-MIB |
| 1.3.6.1.2.1.16.29.1 | hcAlarmObjects | HC-ALARM-MIB |
| 1.3.6.1.2.1.16.29.1.1 | hcAlarmControlObjects | HC-ALARM-MIB |
| 1.3.6.1.2.1.16.29.1.1.1 | hcAlarmTable | HC-ALARM-MIB |
| 1.3.6.1.2.1.16.29.1.1.1.1 | hcAlarmEntry | HC-ALARM-MIB |
| 1.3.6.1.2.1.16.29.1.1.1.1.3 | hcAlarmVariable | HC-ALARM-MIB |