A link satisfies this include-any constraint only if the constraint is zero or the link and the constraint share at least one resource class in common. This bitmask restricts which physical links are eligible to carry the detour by administrative tag, so a nonzero value forces path computation to only pick backup links tagged with at least one matching resource class rather than any link with spare capacity. For example, setting a bit for a 'diverse-path' resource class ensures the detour only uses links explicitly tagged as physically diverse from the primary path, avoiding a backup that shares the same conduit as the path it protects.