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Document: draft-ietf-quic-applicability-14
Reviewer: Ines Robles
Review Date: 2022-02-07
IETF LC End Date: 2022-02-07
IESG Telechat date: Not scheduled for a telechat

Summary:

This document discusses the applicability of the QUIC transport protocol, focusing on caveats impacting application protocol  development and deployment over QUIC.  The document is well written and clear.

I have one minor issue.  

Major issues: None

Minor issues: 

Section 2 on the sentence:

"While recent measurements have shown no evidence of a widespread,  systematic disadvantage of UDP traffic compared to TCP in the Internet"

Statement of "no evidence of a widespread,  systematic disadvantage" may be seen as misleading when the example is about networks that simply block UDP traffic without considering other possible disadvantages, moreover when one of the references specifically states the opposite "3% failure is a lot". Additionally references are rather old (2016) materials. Suggestion for avoidance of doubt:

"Measurements have shown 3-5% of networks blocking UDP, constituting a disadvantage of UDP traffic compared to TCP in the Internet [Edeline16], [Trammell16] [Swett16].  All applications running on top of QUIC must therefore..."

Nits: None

Thanks for this document,
Ines.