Description

The error "Minor system Node memory level is low" on a PTX Juniper device with  EVO version. indicates that the available memory on one of the system nodes has dropped to a level that warrants attention.

Symptoms

> show system alarms no-forwarding
1 alarms currently active
Alarm time        Class Description
2024-03-10 08:55:36 PDT Minor system Node memory level is low

> show system errors active detail

System Active Errors Detail Information
RE 0
----------------------------------------------------------------
Error Name      : Node Memory Availability Low
Identifier      : /re/0/emfd-fpa/0/system/0/mem_mgmt/0/Node Memory Availability Low
Description      : Node Memory Availability Low
State         : enabled
Scope         : board
Category       : functional
Level         : minor
Threshold       : 10
Error limit      : 1
Occur count      : 1
Clear count      : 0
Last occurred(ms ago) : 2024-05-27 08:55:36 PDT (43958631 ms ago)

Mar 10 08:55:36.699 : EMF_FPA_FAULT_REP: createFault: Fault(Location: /Chassis[0]/Re[0] Module: mem_mgmt Object: system Error: 1) reported
Mar 10 08:55:36.700 : EMF_EVO_ALARM_SET: Alarm set: NODEMEM color=yellow, class=CHASSIS, reason=system Node memory level is low
Mar 10 08:55:36.700 : EMF_FPA_ALARM_REP: RaiseAlarm: Alarm(Location: /Chassis[0]/Re[0] Module: mem_mgmt Object: system Error: 1) reported
Mar 10 08:55:36.700 : EMF_FPA_ALARM_REP: RaiseAlarm: Alarm(Location: /Chassis[0]/Re[0] Module: mem_mgmt Object: system Error: 1) reported

 

Solution

To resolve the "Minor system Node memory level is low" alarm, follow these steps:

1. Investigation: Collect details of any configuration changes made and identify known triggers or events that may have led to the alarm.
2. Command Outputs: Gather output for the following commands to assist in diagnosing the issue:
   >show system processes extensive no-forwarding
   >show system storage no-forwarding
   >show route summary
   >show system memory
   >request pfe execute command "show syslog messages" target fpc<slot>
   >show pfe route summary | match Default
   - Enter shell mode with `start shell` and execute:
     #top -b -n 1 | grep Mem` (repeat 3 times)
     #top -o RES
     #cat /proc/meminfo | grep Mem` (repeat 3 times)

3. Graph Data: Provide CPU, RPD, memory utilization, and KRTQ graphs before and after the occurrence of the issue to assist in analysis.

If the issue persists or further assistance is required in resolving the alarm, please contact Juniper customer support for expert guidance.
 

Modification History

2024-05-29 : Article Created