Various example embodiments for supporting flow reliability in deterministic networking are presented. Various example embodiments for supporting flow reliability in deterministic networking may be configured to support flow reliability in deterministic networking based on control over frame replication and elimination for deterministic flows. Various example embodiments for supporting flow reliability in deterministic networking based on control over frame replication and elimination for deterministic flows may be configured to control replication and elimination of redundant flows providing redundancy for deterministic flows based on dynamic activation and deactivation of the redundant flows based on monitoring of flow continuity of the deterministic flows. Various example embodiments for supporting flow reliability in deterministic networking based on control over frame replication and elimination for deterministic flows may be configured to support flow reliability in deterministic networking for non-hierarchical networks or hierarchical networks.