Bug ID 455025: Virtual server with iRule and no default pool marked offline if one of the iRule pools is forced offline.

Last Modified: Oct 02, 2019

Bug Tracker

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

Known Affected Versions:
10.2.0, 10.2.1, 10.2.2, 10.2.3, 10.2.4, 11.0.0, 11.1.0, 11.2.0, 11.2.1, 11.3.0, 11.4.0, 11.4.1, 11.5.0, 11.5.1, 11.5.1 HF1, 11.5.1 HF10, 11.5.1 HF11, 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

Fixed In:
11.6.0, 11.5.2, 11.4.1 HF9, 10.2.4 HF12

Opened: Apr 01, 2014
Severity: 3-Major
Related AskF5 Article:
K15410

Symptoms

Virtual server with iRule and no default pool marked offline if one of the iRule pools is forced offline. Although the virtual server is marked offline it can actually reach available pool members from another pool by a multi-pool picker iRule.

Impact

During maintainability, a pool (that could not be targeted at the moment) marked offline (pool members) could bring the whole virtual server offline.

Conditions

- Virtual server with no default iRule. - iRule with if-else that picks a different pool for each condition. - Force offline the pool members for one of the pools.

Workaround

Mark the pool members as disabled, instead of offline: modify ltm pool pool_http members modify { 10.2.202.5:http { session user-disabled } }

Fix Information

N/A

Behavior Change