Re: [quicwg/base-drafts] More ECN verification failure modes (#2198)

Magnus Westerlund <notifications@github.com> Wed, 19 December 2018 09:06 UTC

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Subject: Re: [quicwg/base-drafts] More ECN verification failure modes (#2198)
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#2205 if there is a requirement for the ACK frame to always include a largest acknoweldge equal to largest received then the above can't happen. The the later reordered packet will have the same largest acknowledged as the later arriving, but sent later. Thus, the ECN verification check would be that Largest Acknowledged MUST increase for verification to happen. Or one actually looks at the PN of the packet of the ACK frame to ensure that they arrive in order. 

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