Floating IP is used as the default gateway of any pool servers of Virtual Services requiring preservation of client IP, which in turn means the SEs and that floating IP would be connected to the same subnet as the servers.
Floating IP should be added at AVI side by configuring Network Service (currently command-line is the only available way to do that). Please refer to the official documentation of Avi.
Static Route should be configured using Virtual Routing & Forwarding (VRF) at AVI side to point all the traffic to the gateway of front-end network.
