Indicates the entity type the condition associated, which provides additional information for the object instance having the condition. entity type is not exactly same as MO. Entity type have smaller granularity referring to different service functions, e.g. 100GBase-R, 40GBase-R, 100GBase-R, ODU4, ODU2, ODU3, OTU4, OTUC2... Separate functions will have different entity types so that profile can be set differently for different service function which is more corresponding to user application.