Bug ID 452643: Pool member's lb_value is not updated when transistioning from disabled to enabled

Last Modified: Jan 07, 2026

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

Known Affected Versions:
11.5.1, 11.5.1 HF1, 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

Fixed In:
11.6.0, 11.5.2

Opened: Mar 17, 2014

Severity: 3-Major

Related Article: K15618

Symptoms

Some members may not receive traffic when the pool's load balancing method is set to one of the following: - Least Connections - Fastest - Least Sessions

Impact

Member does not receive traffic

Conditions

Member's lb_value is non-zero when transitioned to disabled.

Workaround

Enable pool member and change load balancing method from original to Ratio and back.

Fix Information

A Members lb_value is updated upon transitioning from disabled to enabled states when using one of the following load balancing methods: - Least Connections - Fastest - Least Sessions

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips