Bug ID 1633925: Neurond is crashing intermittently during the creation/deletion of Neuron rules.

Last Modified: Sep 27, 2024

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

Known Affected Versions:
17.1.0, 17.1.0.1, 17.1.0.2, 17.1.0.3, 17.1.1, 17.1.1.1, 17.1.1.2, 17.1.1.3, 17.1.1.4

Opened: Aug 27, 2024

Severity: 3-Major

Symptoms

Neurond crashes are observed intermittently and core files are generated in the /shared/core folder.

Impact

Neurond crashes will be observed and may result in software-only mitigation due to failure in Neuron rule addition. Once Neurond comes up, rules are recreated allowing with the hardware mitigation.

Conditions

When a profile-based DOS vector threshold is configured with a very low value, it may result in frequent addition/deletion of Neuron rules.

Workaround

Increase in threshold values for Profile-based DOS vectors if the configured value is very low.

Fix Information

None

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips