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A PIE-Based AQM for DOCSIS Cable Modems

The information below is for an old version of the document.
Document Type
This is an older version of an Internet-Draft that was ultimately published as RFC 8034.
Expired & archived
Authors Greg White , Rong Pan
Last updated 2015-09-29 (Latest revision 2015-03-28)
Replaces draft-white-aqm-docsis-pie
RFC stream Internet Engineering Task Force (IETF)
Additional resources Mailing list discussion
Stream WG state WG Document
Waiting for Referenced Document
Document shepherd Richard Scheffenegger
IESG IESG state Expired
Consensus boilerplate Unknown
Telechat date (None)
Responsible AD (None)
Send notices to "Richard Scheffenegger" <>

This Internet-Draft is no longer active. A copy of the expired Internet-Draft is available in these formats:


DOCSIS cable modems provide broadband Internet access to over one hundred million users worldwide. They are commonly positioned at the head of the bottleneck link for traffic in the upstream direction (from the customer), and 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 includes 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.


Greg White
Rong Pan

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)