Forum Discussion

Felkor_29336's avatar
Felkor_29336
Icon for Nimbostratus rankNimbostratus
Dec 17, 2013

Score bonus & failover condition

Hello guys,   A question regarding the behavior of the failover in the 11.4.1   Two devices, in active/standby, with a trunk   Active unit bonus score : +10   Bonus per available trunk in...
availability
fail over
management
preempt
score
arpydays's avatar
arpydays
Icon for Nimbostratus rankNimbostratus
Mar 08, 2016

Dylan, it is in the link posted by nitass, here is the extract.

 

About matching device utilization values In rare cases, the BIG-IP system might calculate that two or more devices in a device group have the same lowest device utilization score. In this case, the BIG-IP system needs an additional method for choosing the next-active device for an active traffic group.

 

The way that the BIG-IP system chooses the next-active device when device utilization scores match is by determining the management IP address of each matching device and then calculating a score based on the highest management IP address of those devices.

 

For example, if Bigip_A has an IP address of 192.168.20.11 and Bigip_B has an IP address of 192.168.20.12, and their utilization scores match, the BIG-IP system calculates a score based on the address 192.168.20.12.