The IESG has approved the following document: - 'On Queuing, Marking, and Dropping' (draft-ietf-aqm-fq-implementation-05.txt) as Informational RFC This document is the product of the Active Queue Management and Packet Scheduling Working Group. The IESG contact persons are Spencer Dawkins and Martin Stiemerling. A URL of this Internet Draft is: https://datatracker.ietf.org/doc/draft-ietf-aqm-fq-implementation/ Technical Summary This note discusses implementation strategies for coupled queuing and mark/drop algorithms. In the discussion of Active Queue Management, there has been discussion of the coupling of queue management (scheduling) algorithms with mark/drop (aqm) algorithms. This note is Informational, intended to describe reasonable possibilities without constraining outcomes. This is not so much about "right" or "wrong" as it is "what might be reasonable", and discusses several possible implementation strategies. Also, while queuing might be implemented in almost any layer, specifically the document addresses queues that might be used in the Differentiated Services Architecture, and are therefore at or below the IP layer. Working Group Summary This document emerged to capture some of the discussions within the WG around the combination of scheduling and AQM mechanisms, and to clarify the discussion, as well as providing some guidance as to how to implement such a combination. Document Quality The WG is actively looking at specific combined algorithms (e.g. FQ- Codel), which have been widely recognized as being more effective than either algorithm alone. There exists deployed code, as well as simulation code for this particular combination, but many other combinations, as described in the document, of different scheduling and queue management algorithms are possible. Personnel Document Shepherd - Wesley Eddy Responsible Area Director - Martin Stiemerling
