F5 is upgrading its customer support chat feature on My.F5.com. Chat support will be unavailable from 6am-10am PST on 1/20/26. Refer to K000159584 for details.

Forum Discussion

mgoogol_201830's avatar
mgoogol_201830
Icon for Nimbostratus rankNimbostratus
Sep 14, 2017

Is FloatingIP mandatory for all interfaces/Vlans ?

We have two F5 in HA (Active/Standby), and each have two interfaces, one for external (use for VirtualServer only) and another for internal (for connection to back-end servers and VirtualServer)   ...
application delivery
LTM
Michael_Yates's avatar
Michael_Yates
Icon for Nimbostratus rankNimbostratus
Sep 14, 2017

Yes, In a High Availability configuration.

 

The Floating IP Address is used by the Active Device.

 

When Active it listens on this IP Address and then can utilize either the Floating IP Address or it's Self-IP Address in responding.

 

The Standby device uses its Self-IP Address to listen to what is going on and verify that requests are being responded to by the Active Device as well as determine its on ability to act as the Active Device (Example: See K13297: Overview of VLAN failsafe (10.x - 13.x)).