DOCSIS-CMTS-DS-UTIL-STATS-TYPE is an IPDR Service Definition Schema that defines downstream utilization statistics for a specified downstream interface for the specified CMTS. Revision History: 3.5.1-A.1 Initial version. 3.5.1-A.2 Revised version includes ECN OSSIv3.0-N-10.0914-3 and OSSIv3.0-N-10.0928-1 and published as I12. 3.5.1-A.3 Revised version includes ECN OSSIv3.0-N-10.0968-2 and published as I14. DOCSIS 3.0 Operations Support System Interface Specification CM-SP-OSSIv3.0-I14-110210, Annex O. This IPDR record contains utilization statistics for a specified downstream interface on a specified CMTS.