Bug ID 749414: Invalid monitor rule instance identifier error

Last Modified: Sep 13, 2023

Affected Product(s):
BIG-IP LTM(all modules)

Known Affected Versions:
12.1.3,,,,,,,, 12.1.4,, 13.0.0, 13.0.0 HF1, 13.0.0 HF2, 13.0.0 HF3, 13.0.1, 13.1.0,,,,,,,,, 13.1.1,,,,, 14.0.0,,,,,, 14.0.1, 14.1.0,,,,

Fixed In:
15.0.0,,, 13.1.3, 12.1.5,

Opened: Nov 09, 2018

Severity: 3-Major


Modifying nodes/pool-member can lose monitor_instance and monitor_rule_instances for unrelated objects.


-- The system might delete monitor rule instances for unrelated nodes/pool-members. -- Pool members are incorrectly marked down.


-- BIG-IP system is configured with nodes, pool-members, and pools with monitors. -- Modify one of the nodes that is in a pool. -- Run the following command: tmsh load /sys config -- Loading UCS/SCF file can trigger the issue also. -- Nodes share the same monitor instance. -- default-node-monitor is not configured.


You can use either of the following: -- Failover or failback traffic to the affected device. -- Run the following command: tmsh load sys config.

Fix Information


Behavior Change

Guides & references

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