Last Modified: Feb 13, 2019
See more info
Known Affected Versions:
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, 11.6.0, 11.6.0 HF1, 11.6.0 HF2, 11.6.0 HF3, 11.6.0 HF4
12.0.0, 11.6.0 HF5, 11.5.2
Opened: Jun 23, 2014
Related AskF5 Article: K16249
After rebooting multi-bladed BIG-IP systems configured for failover, one or more of the systems has some of its blades flap from active to standby.
Invalid redundant status.
Rebooting systems fairly close in time from one another (about a minute apart). Traffic group must reference an HA group.
Modify the traffic group to no longer reference an HA group: tmsh modify cm traffic-group traffic-group-1 ha-group none.
Multi-blade systems no longer experience active/standby flapping after both units are rebooted, so the following MCPD error message no longer occur at the secondary blades: err mcpd: 010717b5:3: HA group (HA) cannot be removed. It is used by traffic group (/Common/traffic-group-1 ).