6 IP layer

38.4723GPPF1 signalling transportNG-RANRelease 16TS

The gNB-CU and gNB-DU shall support IPv6 (IETF RFC 8200 [2]) and/or IPv4 (IETF RFC 791 [3]).

The IP layer of F1-C only supports point-to-point transmission for delivering F1AP message.

The gNB-CU and gNB-DU shall support the Diffserv Code Point marking as described in IETF RFC 2474 [4].