Active-Active non-floating IP requirement
Hi
I'm migrating a single F5 physical appliance to an Active-Active Virtual Edition pair, running LTM module. Running version 12.1.0.
Something i'm confused about is the apparent requirement to have non-floating self IP's on each F5 prior to configuring a floating IP. My understanding is that i need to use floating IP's in order for failover to work correctly, which seems logical. But if i just try to configure a floating IP, it throws an error saying that there is no non-floating IP in the same VLAN that i'm trying to configure a floating IP for.
Example:
VLAN 10
Floating IP: 10.10.10.1/24
Big IP 1 Non-Floating: 10.10.10.2/24
Big IP 2 Non-Floating: 10.10.10.3/24
I'm not sure what purpose the non-floating IP's serve. Surly the floating IP would be used for any actual forwarding for that VLAN. If the F5 was running something like VRRP, i'd understand, as it'd use those IP's to check for each others availability/status. In this case though, the F5 is using the "HA" VLAN as a heartbeat.
What am i missing here?
Thanks in advance.