Section: 15.3.1.3 Application layer initialization
Content: Once SCTP connectivity has been established, the NG-RAN node and the AMF shall exchange application level configuration data over NGAP with the NG Setup procedure, which is needed for these two nodes to interwork correctly on the NG interface: - The NG-RAN node provides the relevant configuration information to the AMF, which includes list of supported TA(s), etc.; - The AMF provides the relevant configuration information to the NG-RAN node, which includes PLMN ID, etc.; - When the application layer initialization is successfully concluded, the dynamic configuration procedure is completed and the NG-C interface is operational. After the application layer initialization is successfully completed, the AMF may add or update or remove SCTP endpoints to be used for NG-C signalling between the AMF and the NG-RAN node pair as specified in TS 23.501[ System architecture for the 5G System (5GS) ]  [3].