What does the BIG-IP_add script do?

Adding BIG-IP servers to wideip.conf is a separate configuration task performed through the GTM configuration interface, not the BIG-IP_add script.

Adding an existing GTM system to a sync group requires the bigip_add script as a prerequisite step, but the script itself performs the certificate exchange, not the sync group registration.

Configuration synchronization between BIG-IP systems is handled by the GTM sync mechanism after trust is established, not by the BIG-IP_add script itself.

The BIG-IP_add script automates the process of exchanging SSL web certificates and keys between BIG-IP systems so they can authenticate each other. This certificate exchange is a prerequisite for establishing a trusted relationship needed for GTM sync group membership. Without this key exchange, systems cannot securely communicate configuration data.