IEEE 802.1CS-2017 defines the Stream split table in 10.6 as: There is one Stream split table per system, with one frerSplitEntry (10.6.1) per Stream splitting function (7.7) per set of stream_handle values. In the FRER MIB this is correctly realized as ieee8021FrerStreamSplitTable, which allows multiple entries indexed by ieee8021FrerStreamSplitIndex. Each entry in the Stream split table specifies a port (10.6.1.1) on which an instance of the Stream splitting function (7.7) is to be instantiated, and the lists of input and output stream_handles specifying the split operation. However, in the FRER YANG module the Stream split table is realized as stream-split list, which uses port and direction-out-facing as index. This definition does not reflect the definition of the Stream split table in 10.6 of IEEE 802.1CS-2017. With this definition only a single Stream can be split at an end system port. Controllers in industrial automation can require splitting of up to 512 streams at a single port.