Bug ID 754460: No failover on HA Dual Chassis setup using HA score

Last Modified: Nov 22, 2021

Bug Tracker

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

Known Affected Versions:
13.0.1, 13.0.0,, 12.1.4,,,,

Fixed In:

Opened: Jan 02, 2019
Severity: 3-Major


On a high availability (HA) set up of two chassis, an HA failover does not occur, despite HA score on Standby being greater than Active.


Although enabling blades on the standby chassis causes a higher HA score on the standby (which should cause a failover to occur), HA state remains the same on both chassis. HA failover is not occurring using HA score calculation.


-- Multiple blades disabled. -- Both active and standby chassis have same HA score. -- Enabling blades on standby chassis.



Fix Information


Behavior Change