Hi, I have reviewed this document as part of the Operational directorate's ongoing effort to review all IETF documents being processed by the IESG. These comments were written with the intent of improving the operational aspects of the IETF drafts per guidelines in RFC5706. Comments that are not addressed in last call may be included in AD reviews during the IESG review. Document editors and WG chairs should treat these comments just like any other last call comments. Overall Summary: This draft is an informational track document defining the flow and service information model for Detnet (IP/MPLS). This draft does not introduce any backward compatibility issues and any operational aspects may need more attention while defining the relevant data model. Overall this is a well written document. Few observations while reading the document are listed below: --> In Section 4.1, when the App-flow characteristics is defining N:1 mapping, I am assuming that it can carry a mix (and so more than one entry) of FlowType and DataFlowSpecification?. Can this be clarified?. --> In Section 5.8b, "OutOfService: Administratively blocked" is used when all the egress DN nodes are administratively blocked?. If some nodes are admin blocked while others are not, does it need something like partiallyfailed?. Few nits: s/This document describes the Detnet Flow Service Information Model/This document describes the Detnet Flow and Service Information Model?. s/In a given network scenario three information models can distinguished/In a given network scenario three information models can be distinguished s/DetNetwork/DetNet