Re: [quicwg/base-drafts] missing description of what happens when receiving an ACK for an unsent packet (#2298)

MikkelFJ <notifications@github.com> Sun, 06 January 2019 19:34 UTC

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Subject: Re: [quicwg/base-drafts] missing description of what happens when receiving an ACK for an unsent packet (#2298)
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FYI: the reason this always needs to be treated as hostile (when provable) is because it is the only defence against the potentially very harmful optimistic ack attack. There are very few other other reasons to have gaps in the range, such as when having multiple concurrent transmit queues.

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