What triggers the UE to switch all uplink MA PDU Session traffic from untrusted non-3GPP access to trusted non-3GPP access?
Detection of a trusted non-3GPP access network
Expiration of the AMF timer
Receiving a path switch request from the SMF
Triggering the PDU Session Establishment Request via trusted non-3GPP access
Completion of user-plane resources establishment over trusted non-3GPP access