Re: [quicwg/base-drafts] Proposal for adding ECN support to QUIC. (#1372)

[Magnus Westerlund <[e-mail]>]

gloinul commented on this pull request.



> +connection is migrated then the ECN capability check is rerun as specified in
+{{ecn-connection-migration}}.
+
+It is expected that QUIC discards duplicate packets early, however if that is
+not the case **\[ED note, have not seen any clear statement in the drafts]**,
+then it should be verified that the number of ECT marked packets are equal to or
+larger that the amount of ECT marked packets that have been transmitted.
+
+### Continous Verification of ECN {#ecn-continous-verification}
+
+If the ECN capabiity check was successful and the endpoint continus to send ECT
+marked packets then continous verification is applied. This is to detect any
+cases when ECN field is bleached, that is, zeroed out by a network node, likely
+as the result of a routing changes since the ECN capability check.
+
+For each ACK_ECN frame that is received, the total number of ACKed packets are

Yes, except that larger needs to be less in this case. 

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