Ericsson Ericsson Hirschmann Automation and Control GmbH Hirschmann Automation and Control GmbH Replication and Elimination functions of DetNet Architecture can result in out-of-order packets, which is not acceptable for some time-sensitive applications. The Packet Ordering Function (POF) algorithm described herein enables to restore the correct packet order when replication and elimination functions are used in DetNet networks. POF only provides ordering within the latency bound of a DetNet flow, and does not provide any additional reliability.