Category: Alarm and Event Management, Domain: Fault Management, Vendor: Juniper
Description: Defines managed objects for alarm management on Juniper Networks devices, including active alarm tables and severity-based notifications.
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What Is JUNIPER-ALARM-MIB?
JUNIPER-ALARM-MIB is a Juniper Networks, Inc. proprietary MIB reporting chassis-level yellow/red alarm status. Its objects cover an alarm-relay mode, yellow-alarm state/count/last-change-time, and red-alarm state/count/last-change-time. As a status MIB it lets an administrator confirm whether a Juniper chassis currently has an active yellow (minor) or red (major) alarm and when it last changed. It is deployed on Juniper Networks routers/switches. Engineers can download the JUNIPER-ALARM-MIB file directly to load it into their MIB browser.
IPNetwork Monitor allows you to monitor SNMP objects defined in JUNIPER-ALARM-MIB. Use the built-in SNMP Monitoring Browser to explore available variables, view their current values and descriptions, and select the objects you want to monitor. You can then create SNMP monitors, configure thresholds, and receive alerts when monitored values change.
Supported Devices
Juniper Networks routers/switches
Monitoring Examples
An administrator checks jnxRedAlarmState and jnxRedAlarmLastChange to confirm whether a Juniper chassis has an active major alarm and when it started.
Select a Juniper Networks router/switch (chassis yellow/red alarm status) as the target host to create a monitor — the SNMP service should be up and running on it. Click New Monitor, then check SNMP Custom on the Favorites tab, click Next, and confirm the host. On the next page, click Select... to open the built-in SNMP MIB Browser and type jnxYellowAlarmCount into the Find box to locate it in the OID tree, then select it and click OK. The number of currently active and non-silent yellow alarms. On the monitor's Main parameters page you can set the target's SNMP port (default 161), credentials, polling interval, and other settings — see the SNMP Monitor help for details. On the State conditions and Alerting tabs, configure when the monitor should change state and trigger an alert; since this is a Gauge32-type OID, Value bounds is the most useful condition here — trigger an alert if the counter increases sharply between polls relative to its normal baseline, since an unexpected spike often reflects a real change in traffic or activity. Click Finish to create the monitor; you can adjust any parameter later.
The alarm relay mode of the craft interface
panel for both yellow and red alarms.
Both yellow and red alarms could be cut off
by a front panel Alarm Cutoff / Lamp Test
(ACO/LT) button.
In the pass-on mode, the alarm relay will be
activated to pass on the yellow or red alarms.
In the cut-off mode, both yellow and red alarms
will be cut off from the alarm relays which are
normally connected to audible sirens or visual
flashing devices.
The yellow alarm state on the craft interface
panel.
The yellow alarm is on when there is some
system warning such as maintenance alert or
significant temperature increase.
This yellow alarm state could be turned off
by the ACO/LT (Alarm Cut Off / Lamp Test) button
on the front panel module.
The value of sysUpTime when the yellow alarm
last changed - either from off to on or vice
versa. Zero if unknown or never changed since
the agent was up.
The red alarm indication on the craft interface
panel.
The red alarm is on when there is some system
failure or power supply failure or the system
is experiencing a hardware malfunction or some
threshold is being exceeded.
This red alarm state could be turned off by the
ACO/LT (Alarm Cut Off / Lamp Test) button on the
front panel module.
The value of sysUpTime when the red alarm
last changed - either from off to on or vice
versa. Zero if unknown or never changed since
the agent was up.
RFC description
Reports router chassis alarms with craft panel relay control for Juniper network equipment.
Start monitoring Juniper Networks router/switch (chassis yellow/red alarm status) with a free 30-day trial of IPNetwork Monitor. Import MIBs, browse SNMP OIDs, create custom SNMP monitors, configure alerts, and monitor any SNMP-enabled network device from a single console.
