ACE20-MIB :: atmSuSystemHistoryAlrOccurrenceTime

MIB Reference — IPNetwork Monitor · Updated September 14, 2026

All MIBsACE20-MIBatmSuSystemHistoryAlrOccurrenceTime

atmSuSystemHistoryAlrOccurrenceTime

Module: ACE20-MIB

OID (symbolic): ACE20-MIB::atmSuSystemHistoryAlrOccurrenceTime

OID (numeric): 1.3.6.1.4.1.164.12.4.1.3.1.5

Node type: OBJECT-TYPE

Type: DisplayString

Access: read-only

Description: This value indicates the date and time of the occurrence of the event that caused this alarm. Date and time format: YYYY-MM-DD, HH:MM:SS

What is atmSuSystemHistoryAlrOccurrenceTime?

This OID records the exact date and time when the alarm occurred, formatted as YYYY-MM-DD HH:MM:SS (e.g., 2024-01-15 14:23:47). Network engineers use the timestamp to correlate alarms with maintenance windows, network changes, or other events. For example, if a link-down alarm occurred at 14:23:47, engineers can check logs from that exact time to see what triggered the failure.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.164.12.4.1.3.1.5
snmpwalk -v2c -c public <target> ACE20-MIB::atmSuSystemHistoryAlrOccurrenceTime

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.164.12.4.1.3.1.5.1
snmpget -v2c -c public <target> ACE20-MIB::atmSuSystemHistoryAlrOccurrenceTime.1

Start monitoring Nortel ACE 20 ATM concentrator (legacy) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the ACE20-MIB::atmSuSystemHistoryAlrOccurrenceTime OID value, configure state conditions and alerts, and monitor any Nortel ACE 20 ATM concentrator (legacy) 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
1.3.6.1.4.1.164radDACS-MIB
1.3.6.1.4.1.164.12radAtmRAD-MIB
Numeric OIDNameModule
1.3.6.1.4.1.164.12.4atmSuACE20-MIB
1.3.6.1.4.1.164.12.4.1atmSuSystemACE20-MIB
1.3.6.1.4.1.164.12.4.1.3atmSuSystemHistoryAlrTableACE20-MIB
1.3.6.1.4.1.164.12.4.1.3.1atmSuSystemHistoryAlrEntryACE20-MIB
1.3.6.1.4.1.164.12.4.1.3.1.5atmSuSystemHistoryAlrOccurrenceTimeACE20-MIB