Forum Discussion
boneyard
Jun 21, 2015MVP
asking the question once is enough i believe :)
you don't need it, without it nothing will break directly. but things will become complex. if you for example have a server with the big-ip as default gateway, what IP do you configure? you have to choose one, so either unit A or unit B. if you have a floating Self IP that IP moves to the active unit, so you can use that one.
similar with traffic from the BIG-IP to your server. without a floating self IP it will use the non floating self IP, which will change with a failover, perhaps causing issues.
so no you don't NEED it, but it makes things much nicer.