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Re: [quicwg/base-drafts] loss of only two packets can lead to an unrecoverable situation (#2267)

Marten Seemann <notifications@github.com> Mon, 28 January 2019 07:00 UTC

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Subject: Re: [quicwg/base-drafts] loss of only two packets can lead to an unrecoverable situation (#2267)
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> Current design guarantees that both endpoints will have 1-RTT read and write keys 3-PTO before the handshake keys are dropped (I think we can agree on this).

Both endpoints have the 1-RTT keys, but the client doesn't know that the server has them, since the ACK for the CFIN was lost. For the client, this situation is indistinguishable from the CFIN itself being lost, so it has to keep retransmitting it.

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