ZTE Corporation ZTE Corporation CAICT Beijing Jiaotong University This document proposes a set of extensions to BGP Flow Specification for the flow mapping of Deterministic Networking (DetNet) when interconnected with IEEE 802.1 Time-Sensitive Networking (TSN). The BGP flowspec is used for the filtering of the packets that match the DetNet networks and the mapping between TSN streams and DetNet flows in the control plane.