The path option number (1-16) for this destination within a named destination list, letting an admin configure multiple candidate paths (tried in order) to the same leaf destination. Note the source MIB's own DESCRIPTION for this object is copy-pasted from the sibling zxr10P2mpTeDstNameCfgDestAddr object and literally reads "The destination address of destlistname," which doesn't match this object's own name or Integer32(1..16) syntax; based on the object's name and its role alongside zxr10P2mpTeDstNameCfgPathType/zxr10P2mpTeDstNameCfgExpPathName, this is unambiguously the numeric path-option identifier, not an address.