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RFC 8034
Title: Active Queue Management (AQM) Based
on Proportional Integral Controller Enhanced PIE)
for Data-Over-Cable Service Interface Specifications (DOCSIS)
Cable Modems
Author: G. White, R. Pan
Status: Informational
Stream: IETF
Date: February 2017
Mailbox: g.white@cablelabs.com,
ropan@cisco.com
Pages: 17
Characters: 33326
Updates/Obsoletes/SeeAlso: None
I-D Tag: draft-ietf-aqm-docsis-pie-02.txt
URL: https://www.rfc-editor.org/info/rfc8034
DOI: 10.17487/RFC8034
Cable modems based on Data-Over-Cable Service Interface
Specifications (DOCSIS) provide broadband Internet access to over one
hundred million users worldwide. In some cases, the cable modem
connection is the bottleneck (lowest speed) link between the customer
and the Internet. As a result, the impact of buffering and
bufferbloat in the cable modem can have a significant effect on user
experience. The CableLabs DOCSIS 3.1 specification introduces
requirements for cable modems to support an Active Queue Management
(AQM) algorithm that is intended to alleviate the impact that
buffering has on latency-sensitive traffic, while preserving bulk
throughput performance. In addition, the CableLabs DOCSIS 3.0
specifications have also been amended to contain similar
requirements. This document describes the requirements on AQM that
apply to DOCSIS equipment, including a description of the
"DOCSIS-PIE" algorithm that is required on DOCSIS 3.1 cable modems.
This document is a product of the Active Queue Management and Packet Scheduling Working Group of the IETF.
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