As a part of the Setup Utility, the administrator sets the host name for the BIG-IP. What would be the result if the two systems in a redundant pair were set to the same host name.

Host names do matter in redundant pair communication because BIG-IP uses them to uniquely identify each device and to associate device-specific parameters such as self-IPs during synchronization operations.

A correctly configured redundant pair requires each system to have a unique host name; identical host names represent a misconfiguration, not an expected or supported state.

During the first synchronization, the receiving standby device is assigned the same self-IP address as the sending active device because self-IP assignments are tied to the synchronized host name configuration. This results in a duplicate IP address conflict on the network, breaking proper redundant pair communication and traffic handling.

While name resolution ambiguity could affect GUI access by host name, the more technically significant consequence is the self-IP overwrite and resulting network conflict caused by the synchronization process itself.