All MIBs › RMON2-MIB › usrHistoryIntervalStart
usrHistoryIntervalStart
Module: RMON2-MIB
OID (symbolic): RMON2-MIB::usrHistoryIntervalStart
OID (numeric): 1.3.6.1.2.1.16.18.3.1.2
Node type: OBJECT-TYPE
Type: TimeStamp
Access: read-only
Description: The value of sysUpTime at the start of the interval over which this sample was measured. If the probe keeps track of the time of day, it should start the first sample of the history at a time such that when the next hour of the day begins, a sample is started at that instant.
Note that following this rule may require that the probe delay collecting the first sample of the history, as each sample must be of the same interval. Also note that the sample that is currently being collected is not accessible in this table until the end of its interval.
What is usrHistoryIntervalStart?
This timestamp records when the current sampling interval began, expressed as the number of hundredths of a second since the probe last rebooted. Network engineers use this to correlate history samples with events, confirming whether a metric spike occurred before or after a configuration change or network incident. A value of 500000 means the interval started 5000 seconds (roughly 83 minutes) after the probe rebooted.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.2.1.16.18.3.1.2 snmpwalk -v2c -c public <target> RMON2-MIB::usrHistoryIntervalStart
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.2.1.16.18.3.1.2.1 snmpget -v2c -c public <target> RMON2-MIB::usrHistoryIntervalStart.1
SNMPv3 example:
snmpget -v3 -l authPriv -u snmpv3-user -a SHA -A "AuthPassword1" -x AES -X "PrivPassword1" <target> usrHistoryIntervalStart.1
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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 | AXON-MIB |
| 1.3.6.1.2.1 | mib_2 | AXON-MIB |
| 1.3.6.1.2.1.16 | rmon | LBHUB-BOOM-MIB |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.2.1.16.18 | usrHistory | RMON2-MIB |
| 1.3.6.1.2.1.16.18.3 | usrHistoryTable | RMON2-MIB |
| 1.3.6.1.2.1.16.18.3.1 | usrHistoryEntry | RMON2-MIB |
| 1.3.6.1.2.1.16.18.3.1.2 | usrHistoryIntervalStart | RMON2-MIB |