ADTRAN Calix This document defines a flexible modular YANG model for packet sampling (PSAMP) and bulk data collection and export via the IPFIX protocol. This new model is an alternative to the model defined in RFC 6728, "Configuration Data Model for the IP Flow Information Export (IPFIX) and Packet Sampling (PSAMP) Protocols". All functionality modeled in RFC 6728 has been carried over to this new model. The YANG data model in this document conforms to the Network Management Datastore Architecture (NMDA) defined in RFC 8342. This document obsoletes RFC 6728 (if approved).