All MIBs › SNMP-USER-BASED-SM-MIB › usmStatsNotInTimeWindows
usmStatsNotInTimeWindows
Module: SNMP-USER-BASED-SM-MIB
OID (symbolic): SNMP-USER-BASED-SM-MIB::usmStatsNotInTimeWindows
OID (numeric): 1.3.6.1.6.3.15.1.1.2
Node type: OBJECT-TYPE
Type: Counter32
Access: read-only
Description: The total number of packets received by the SNMP engine which were dropped because they appeared outside of the authoritative SNMP engine's window.
What is usmStatsNotInTimeWindows?
This counts SNMP messages dropped because their timestamp fell outside the engine's valid time window. It detects clock skew attacks or synchronized device failures. An operator monitors this when troubleshooting SNMPv3 authentication failures or NTP synchronization issues.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.6.3.15.1.1.2 snmpwalk -v2c -c public <target> SNMP-USER-BASED-SM-MIB::usmStatsNotInTimeWindows
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.6.3.15.1.1.2.1 snmpget -v2c -c public <target> SNMP-USER-BASED-SM-MIB::usmStatsNotInTimeWindows.1
Start monitoring vendor-neutral, standards-based MIB, any device or host running an SNMPv3 agent (USM user credentials/security-violation counters) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the SNMP-USER-BASED-SM-MIB::usmStatsNotInTimeWindows OID value, configure state conditions and alerts, and monitor any vendor-neutral, standards-based MIB, any device or host running an SNMPv3 agent (USM user credentials/security-violation counters) 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 |
| 1.3.6.1.6 | snmpV2 | DASAN-DHCP-MIB |
| 1.3.6.1.6.3 | snmpModules | RAPID-CITY |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.6.3.15 | snmpUsmMIB | SNMP-USER-BASED-SM-MIB |
| 1.3.6.1.6.3.15.1 | usmMIBObjects | SNMP-USER-BASED-SM-MIB |
| 1.3.6.1.6.3.15.1.1 | usmStats | SNMP-USER-BASED-SM-MIB |
| 1.3.6.1.6.3.15.1.1.2 | usmStatsNotInTimeWindows | SNMP-USER-BASED-SM-MIB |