Supported Platforms
Related Documentation
- QFabric System, QFX Series standalone switches
- Juniper Networks Enterprise-Specific MIBs
- QFX Series standalone switches
- Configuring RMON Alarms and Events
- Understanding RMON
RMON MIB Event, Alarm, Log, and History Control Tables
The Junos OS supports the Remote Network Monitoring (RMON) MIB (RFC 2819), which allows a management device to monitor the values of MIB objects, or variables, against configured thresholds. When the value of a variable crosses a threshold, an alarm and its corresponding event are generated. The event can be logged and can generate an SNMP trap.
Table 1 provides each field in the RMON eventTable, the description of the field, and the corresponding Junos OS statement that you can use to configure the field. The Junos OS statements reside at the [edit snmp rmon] hierarchy level.
Table 1: RMON Event Table
Field | Description | Statement [edit snmp rmon] |
|---|---|---|
eventDescription | Text description of this event. | description |
eventType | Type of event (for example, log, trap, or log and trap). | type |
eventCommunity | Trap group to which to send this event, as defined in the Junos OS configuration. (This is not the same as the SNMP community.) | community |
eventOwner | Entity (for example, manager) that created this event. | — |
eventStatus | Status of this row (for example, valid, invalid, or createRequest). | — |
Table 2 provides each field in the RMON alarmTable, the description of the field, and the corresponding Junos OS statement that you can use to configure the field. The Junos OS statements reside at the [edit snmp rmon] hierarchy level.
Table 2: RMON Alarm Table
Field | Description | Statement [edit snmp rmon] |
|---|---|---|
alarmStatus | Status of this row (for example, valid, invalid, or createRequest) | — |
alarmInterval | Sampling period (in seconds) of the monitored variable | interval |
alarmVariable | Object identifier (OID) and instance of the variable to be monitored | — |
alarmValue | Actual value of the sampled variable | — |
alarmSampleType | Sample type (absolute or delta changes) | sample-type |
alarmStartupAlarm | Initial alarm (rising, falling, or either) | startup-alarm |
alarmRisingThreshold | Rising threshold against which to compare the value | rising-threshold |
alarmFallingThreshold | Falling threshold against which to compare the value | falling-threshold |
alarmRisingEventIndex | Index (row) of the rising event in the event table | rising-event-index |
alarmFallingEventIndex | Index (row) of the falling event in the event table | falling-event-index |
Table 3 provides each field in the jnxRmon jnxRmonAlarmTable, which is an extension to the RMON alarmTable. You can troubleshoot the RMON agent, rmopd, that runs on a switch by inspecting the contents of the jnxRmonAlarmTable object.
Table 3: jnxRmon Alarm Table
Field | Description |
|---|---|
jnxRmonAlarmGetFailCnt | Number of times the internal Get request for the variable failed |
jnxRmonAlarmGetFailTime | Value of the sysUpTime object when the last failure occurred |
jnxRmonAlarmGetFailReason | Reason why the Get request failed |
jnxRmonAlarmGetOkTime | Value of the sysUpTime object when the variable moved out of failure state |
jnxRmonAlarmState | Status of this alarm entry |
Table 4 provides each field in the RMON historyControlTable, the description of the field, and the corresponding Junos OS statement that you can use to configure the field. The Junos OS statements reside at the [edit snmp rmon history] hierarchy level. The historyControlTable controls the RMON etherHistoryTable.
Table 4: RMON History Control Table
Field | Description | Statement [edit snmp rmon history] |
|---|---|---|
historyControlDataSource | Identifies the source of the data for which historical data was collected. | interface |
historyControlBucketsRequested | Requested number of discrete time intervals over which data is to be saved. | bucket-size |
historyControlBucketsGranted | Number of discrete sampling intervals over which data is to be saved. | — |
historyControlInterval | Interval, in seconds, over which the data is sampled for each bucket. | interval |
historyControlOwner | Entity that configured this entry. | owner |
historyControlStatus | Status of this entry. | — |
Related Documentation
- QFabric System, QFX Series standalone switches
- Juniper Networks Enterprise-Specific MIBs
- QFX Series standalone switches
- Configuring RMON Alarms and Events
- Understanding RMON
Published: 2014-07-23
Supported Platforms
Related Documentation
- QFabric System, QFX Series standalone switches
- Juniper Networks Enterprise-Specific MIBs
- QFX Series standalone switches
- Configuring RMON Alarms and Events
- Understanding RMON
