Apparatuses, methods and non-transitory computer-readable storage mediums for network access

A system for configuring network access in a control and user plane separation architecture, the control and user plane separation architecture including a control plane and a user plane, the system comprising:

• at least one processor;
• and
• at least one memory storing instructions that, when executed by the at least one processor, cause the system to
• send, by a session management function (SMF) to a first user plane function (UPF), a first packet forwarding control protocol (PFCP) message including an indication of a first tunnel internet protocol (IP) address and a designated state for the first UPF;
• send, by the SMF to a second UPF, a second PFCP message including the indication of the first tunnel IP address and a designated state for the second UPF, the designated state for the second UPF being standby and the designated state for the first UPF being active;
• send, by the SMF to the first UPF, a third PFCP message including an indication of a second tunnel IP address and a second designated state for the first UPF;
• and
• send, by the SMF to the second UPF, a fourth PFCP message including the indication of the second tunnel IP address and a second designated state for the second UPF, the second designated state for the second UPF being standby and the second designated state for the first UPF being active.