[aqm] RFC 8033 on Proportional Integral Controller Enhanced (PIE): A Lightweight Control Scheme to Address the Bufferbloat Problem
rfc-editor@rfc-editor.org Wed, 01 March 2017 01:16 UTC
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Subject: [aqm] RFC 8033 on Proportional Integral Controller Enhanced (PIE): A Lightweight Control Scheme to Address the Bufferbloat Problem
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A new Request for Comments is now available in online RFC libraries. RFC 8033 Title: Proportional Integral Controller Enhanced (PIE): A Lightweight Control Scheme to Address the Bufferbloat Problem Author: R. Pan, P. Natarajan, F. Baker, G. White Status: Experimental Stream: IETF Date: February 2017 Mailbox: ropan@cisco.com, prenatar@cisco.com, fredbaker.ietf@gmail.com, g.white@cablelabs.com Pages: 30 Characters: 58829 Updates/Obsoletes/SeeAlso: None I-D Tag: draft-ietf-aqm-pie-10.txt URL: https://www.rfc-editor.org/info/rfc8033 DOI: 10.17487/RFC8033 Bufferbloat is a phenomenon in which excess buffers in the network cause high latency and latency variation. 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 latency variation degrade application performance. There is a pressing need to design intelligent queue management schemes that can control latency and latency variation, 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 queuing 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 timestamps, so it incurs very little overhead and is simple enough to implement in both hardware and software. This document is a product of the Active Queue Management and Packet Scheduling Working Group of the IETF. EXPERIMENTAL: This memo defines an Experimental Protocol for the Internet community. It does not specify an Internet standard of any kind. Discussion and suggestions for improvement are requested. Distribution of this memo is unlimited. This announcement is sent to the IETF-Announce and rfc-dist lists. To subscribe or unsubscribe, see https://www.ietf.org/mailman/listinfo/ietf-announce https://mailman.rfc-editor.org/mailman/listinfo/rfc-dist For searching the RFC series, see https://www.rfc-editor.org/search For downloading RFCs, see https://www.rfc-editor.org/retrieve/bulk Requests for special distribution should be addressed to either the author of the RFC in question, or to rfc-editor@rfc-editor.org. Unless specifically noted otherwise on the RFC itself, all RFCs are for unlimited distribution. The RFC Editor Team Association Management Solutions, LLC