DOCSIS-CMTS-DS-UTIL is an auxiliary schema that defines CMTS downstream interface utilization statistics. 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. 3.7-A.3.0.0 New revision naming convention. 3.7-A.3.0.1 Update namespace from mibs to www. Fix import versions. Error corrections announced via errata sheet attached to CM-SP-OSSIv3.0-C01-171207. Contact: Postal: Cable Television Laboratories, Inc. 858 Coal Creek Circle Louisville, Colorado 80027-9750 U.S.A. Phone: +1 303-661-9100 Fax: +1 303-661-9199 Email: data-model-support@cablelabs.com Copyright 2019-2026 Cable Television Laboratories, Inc. All rights reserved. DOCSIS 3.0 Operations Support System Interface Specification CM-SP-OSSIv3.0-C01-171207. The ifIndex from the Interfaces Group MIB for the CMTS downstream interface. Contains the first 50 characters of the ifName from the Interfaces Group MIB for the row entry corresponding to the CMTS downstream interface. The DS channel id as defined in docsIf3MdChCfgChId. The time interval, in seconds, over which the channel utilization index is calculated. The calculated and truncated utilization index percentage for the downstream interface. The total number of bytes in the payload portion of MPEG Packets, not including MPEG header or pointer_field, transported by the downstream interface. The total number of DOCSIS data bytes transported by the downstream interface. The number of data bytes is defined as the total number of bytes transported in DOCSIS payloads minus the number of stuff bytes transported in DOCSIS payloads.