ZTE Corp. Ericsson Ericsson Cisco Systems, Inc. ZTE Corp. This document specifies formats and mechanisms for using MPLS Network Actions (MNA) to support Deterministic Networking (DetNet) services, including bounded latency, low loss and in-order delivery. It defines MPLS In-Stack and Post-Stack MNA for carrying DetNet-specific information, such as flow identification, sequence number, and latency information, which are forwarded over an MPLS technology- based network domain.