Export ID - represents an entry in the export table
Negative IDs (-1, -2, -3…) are chosen by the exporting side
Positive IDs (1, 2, 3…) are chosen by the importing side
ID 0 is reserved for the “main” interface
Import ID - represents an entry in the import table
Positive IDs (1, 2, 3…) are chosen by the importing side
Negative IDs (-1, -2, -3…) are chosen by the exporting side
ID 0 is reserved for the “main” interface