Bug ID 584865: Primary slot mismatch after primary cluster member leaves and then rejoins the cluster

Last Modified: May 29, 2024

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

Known Affected Versions:
11.5.4, 11.5.5, 11.5.6, 11.5.7, 11.5.8, 11.5.9, 11.5.10, 11.6.2, 11.6.3,,,,, 11.6.4, 11.6.5,,, 12.1.1, 12.1.2, 12.1.3,

Fixed In:

Opened: Apr 01, 2016

Severity: 3-Major


Secondary blades in a Viprion system can disagree about the identity of the Primary blade.


Configuration and status may not be kept properly in sync between blades.


Viprion chassis with 3 or more blades. If the primary is temporarily isolated from the other blades, a new primary will be elected. When the primary rejoins, the non-primary blades do not correctly switch back to the newly re-elected primary.



Fix Information

Secondary blades properly identify the Primary on changes.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips