Re: [quicwg/base-drafts] Add handling of all packets marked as CE (#3455)

Martin Thomson <> Sun, 16 February 2020 23:08 UTC

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From: Martin Thomson <>
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Subject: Re: [quicwg/base-drafts] Add handling of all packets marked as CE (#3455)
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martinthomson commented on this pull request.

> @@ -3517,6 +3517,13 @@ use the following steps on receiving an ACK frame to validate ECN.
   corresponding ECT codepoint that are newly acknowledged in this ACK frame.
   This step detects any erroneous network remarking from ECT(0) to ECT(1) (or
   vice versa).
+Another special case is when all packets are indicatd as CE marked,
+independtly of the initial codepode used, including Not-ECT. In this case
+it could be a network element overwriting the ECN field of all packets and

WFM s/conceals/conceal/

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