Last Modified: Nov 22, 2021
BIG-IP (all modules)
Known Affected Versions:
11.5.0, 11.4.1 HF9, 11.4.0 HF4
Opened: Aug 06, 2013 Severity: 2-Critical
When multiple devices are in a failover device group and a default node monitor is being used, removing the default node monitor, synchronizing the configuration, then recreating it and re-synchronizing will cause other devices' nodes to move to the unchecked state.
Affected nodes will be left in the unchecked state.
This only affects configurations that have a default node monitor configured.
Temporarily turn on full-load-only sync on the failover device group, or use the 'Overwrite Configuration' option in the device group sync page of the GUI.
The default node monitor now syncs even when full-load-on-sync is false on the failover device group.