The IESG has approved the following document: - 'Greasing the QUIC Bit' (draft-ietf-quic-bit-grease-04.txt) as Proposed Standard
This document is the product of the QUIC Working Group. The IESG contact persons are Zaheduzzaman Sarker and Martin Duke. A URL of this Internet Draft is: https://datatracker.ietf.org/doc/draft-ietf-quic-bit-grease/ Technical Summary The "wire image" of QUIC packets is described in QUIC invariants (RFC 8999). Little about this image is visible to passive observers. One field, the so-called QUIC Bit, resides at the second-to-most significant bit of the first byte of every QUIC packet. RFC 9000 requires the QUIC Bit to be set to a value of 1, with the purpose being to allow QUIC traffic to be easily distinguisable from some other UDP-based traffic when they share a UDP port. This document defines a behavioural extension, negotiated using transport parameters, that permits endpoints to use any value for this bit. The intention of this extension is to exercise variation in the wire image (i.e, "Grease" the QUIC Bit) in order to support future QUIC changes before systems ossify (see RFC 9170 for more background). Working Group Summary The document is succinct. During adoption and WGLC there was sufficient review and no major issues were raised or incidents occurred. Document Quality The document is succinct and describes how to vary one bit, using well-established mechanisms. There are several implementations of the grease bit extension and several interoperable deployments deployed on the Internet. Personnel Lucas Pardue is the document shepherd. Zaheduzzaman Sarker is the AD.
