Each row entry represents host tracking statistics information about a particular subscriber host. Rows are created or removed automatically by the system. Rows are only created for a subscriber that is associated with a host tracking policy. A subscriber is associated with a host tracking policy if the value of the object tmnxSubInfoSubProfile refers to a subscriber policy where the value of the object tmnxSubProfHostTrackingPolicy is not empty. Moreover, rows are only created where the statistics value is nonzero; this allows faster walking through this table; hence, it is recommended to perform only get-next-request operations to retrieve information from this table.