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The QUIC Latency Spin Bit

Document Type Replaced Internet-Draft (quic WG)
Expired & archived
Authors Brian Trammell , Mirja Kühlewind
Last updated 2019-04-25 (Latest revision 2018-10-22)
Replaced by draft-ietf-quic-transport
RFC stream Internet Engineering Task Force (IETF)
Intended RFC status (None)
Additional resources Mailing list discussion
Stream WG state WG Document
Document shepherd (None)
IESG IESG state Replaced by draft-ietf-quic-transport
Consensus boilerplate Unknown
Telechat date (None)
Responsible AD (None)
Send notices to (None)

This Internet-Draft is no longer active.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


This document specifies the addition of a latency spin bit to the QUIC transport protocol and describes how to use it to measure end- to-end latency. Note to Readers This document specifies an experimental delta to the QUIC transport protocol. Specifically, this experimentation is intended to determine: o the impact of the addition of the latency spin bit on implementation and specification complexity; and o the accuracy and value of the information derived from spin bit measurement on live network traffic. The information generated by this experiment will be used by the QUIC working group as input to a decision about the standardization of the latency spin bit. Although this is a Working Group document, it is currently NOT a Working Group deliverable. Discussion of this draft takes place on the QUIC working group mailing list (, which is archived at [1]. Working Group information can be found at [2]; source code and issues list for this draft can be found at [3].


Brian Trammell
Mirja Kühlewind

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