Bug ID 595275: Virtual IP address change might cause VIP state to go from GREEN to RED to GREEN

Last Modified: Sep 13, 2023

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

Known Affected Versions:
11.5.1 HF2, 11.5.1 HF3, 11.5.1 HF4, 11.5.1 HF5, 11.5.1 HF6, 11.5.1 HF7, 11.5.1 HF8, 11.5.1 HF9, 11.5.1 HF10, 11.5.1 HF11, 11.5.2 HF1, 11.5.3 HF1, 11.5.3 HF2, 11.5.4 HF1, 11.5.4 HF2, 11.5.4 HF3, 11.5.4 HF4, 12.0.0, 12.0.0 HF1, 12.1.0 HF1, 12.0.0 HF2, 12.1.0 HF2, 12.0.0 HF3, 12.0.0 HF4, 12.1.1 HF1, 12.1.1 HF2, 12.1.2 HF1, 12.1.2 HF2, 12.1.2

Fixed In:
13.0.0, 12.1.3, 11.6.1 HF2

Opened: May 23, 2016

Severity: 3-Major

Related Article: K51552163

Symptoms

Virtual IP address change might cause VIP state to go from GREEN to RED to GREEN when pool goes empty.

Impact

VIP can go briefly RED and offline.

Conditions

This occurs when the configuration contains a pool with only one FQDN pool member.

Workaround

Configuring a fallback static IP node or multiple FQDN pool members removes this risk.

Fix Information

None

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips