All MIBs › UCD-SNMP-MIB › ucdShutdown
ucdShutdown
Module: UCD-SNMP-MIB
OID (symbolic): UCD-SNMP-MIB::ucdShutdown
OID (numeric): 1.3.6.1.4.1.2021.251.2
Node type: NOTIFICATION-TYPE
Description: This trap is sent when the agent terminates
What is ucdShutdown?
This SNMP trap is generated by the Net-SNMP agent when the agent process is about to terminate, either due to a graceful shutdown command or system reboot. It allows monitoring systems to detect and respond to agent unavailability. An operator managing distributed monitoring systems would configure trap receivers to handle this notification and alert staff that the monitored host is going offline.
Examples
Send this trap to an SNMP manager — replace <manager> with the IP or hostname of your monitoring server (SNMPv2c):
snmptrap -v2c -c public <manager> '' UCD-SNMP-MIB::ucdShutdown snmptrap -v2c -c public <manager> '' 1.3.6.1.4.1.2021.251.2
Listen for incoming traps on the manager host (-f keeps it in the foreground, -Lo prints to stdout — useful for testing):
snmptrapd -f -Lo -c /dev/null authCommunity log public
Example snmptrapd log entry:
zoo11-linux.zoo [UDP: [192.168.30.111]:63661->[192.168.30.10]:162]: DISMAN-EVENT-MIB::sysUpTimeInstance = Timeticks: (113917613) 13 days, 4:26:16.13 SNMPv2-MIB::snmpTrapOID.0 = OID: UCD-SNMP-MIB::ucdShutdown
Start monitoring Unix/Linux servers running the Net-SNMP (net-snmp/snmpd) agent (CPU/memory/disk/process-table status) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the UCD-SNMP-MIB::ucdShutdown OID value, configure state conditions and alerts, and monitor any Unix/Linux servers running the Net-SNMP (net-snmp/snmpd) agent (CPU/memory/disk/process-table status) from a single console.
OID Breakdown
Upper-level ancestors (6 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 |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.2021 | ucdavis | UCD-SNMP-MIB |
| 1.3.6.1.4.1.2021.251 | ucdTraps | UCD-SNMP-MIB |
| 1.3.6.1.4.1.2021.251.2 | ucdShutdown | UCD-SNMP-MIB |