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

Last Modified: Feb 13, 2019

Bug Tracker

Affected Product:  See more info
BIG-IP LTM(all modules)

Known Affected Versions:
11.6.0, 11.6.0 HF1, 11.6.0 HF2, 11.6.0 HF3, 11.6.0 HF4, 11.6.0 HF5, 11.6.0 HF6, 11.6.0 HF7, 11.6.0 HF8, 11.6.1, 11.6.1 HF1, 12.0.0, 12.0.0 HF1, 12.0.0 HF2, 12.0.0 HF3, 12.0.0 HF4, 12.1.0, 12.1.0 HF1, 12.1.0 HF2, 12.1.1, 12.1.1 HF1, 12.1.1 HF2, 12.1.2, 12.1.2 HF1, 12.1.2 HF2

Fixed In:
13.0.0, 12.1.3, 11.6.1 HF2

Opened: May 23, 2016
Severity: 3-Major
Related AskF5 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