The IESG has received a request from the Active Queue Management and Packet Scheduling WG (aqm) to consider the following document: - 'PIE: A Lightweight Control Scheme To Address the Bufferbloat Problem' <draft-ietf-aqm-pie-07.txt> as Experimental RFC The IESG plans to make a decision in the next few weeks, and solicits final comments on this action. Please send substantive comments to the ietf@ietf.org mailing lists by 2016-05-04. Exceptionally, comments may be sent to iesg@ietf.org instead. In either case, please retain the beginning of the Subject line to allow automated sorting. Abstract Bufferbloat is a phenomenon where excess buffers in the network cause high latency and jitter. As more and more interactive applications (e.g. voice over IP, real time video streaming and financial transactions) run in the Internet, high latency and jitter degrade application performance. There is a pressing need to design intelligent queue management schemes that can control latency and jitter; and hence provide desirable quality of service to users. This document presents a lightweight active queue management design, called PIE (Proportional Integral controller Enhanced), that can effectively control the average queueing latency to a target value. Simulation results, theoretical analysis and Linux testbed results have shown that PIE can ensure low latency and achieve high link utilization under various congestion situations. The design does not require per-packet timestamp, so it incurs very small overhead and is simple enough to implement in both hardware and software. The file can be obtained via https://datatracker.ietf.org/doc/draft-ietf-aqm-pie/ IESG discussion can be tracked via https://datatracker.ietf.org/doc/draft-ietf-aqm-pie/ballot/ The following IPR Declarations may be related to this I-D: https://datatracker.ietf.org/ipr/2540/ https://datatracker.ietf.org/ipr/2123/ https://datatracker.ietf.org/ipr/2187/
