Re: [quicwg/base-drafts] Padding outside QUIC packet (#3333)

[Martin Thomson <[e-mail]>]

I have to admit that I found Kazuho's points about congestion control somewhat compelling.  However, I would say that there is nothing inherently wrong with the approach we take, except for the way that we count those junk bytes toward bytes-in-flight, and particularly how we remove them in the absence of a direct ACK.  But ACKs in Initial packets are worthless anyway, so counting them as though they were Initial probably goes most of the way to fixing the problem.  

Right now we don't account for these bytes at all, which avoids accounting errors, but might not be ideal in terms of congestion control.  INIT_CWND 10 becomes INIT_CWND "10 and a bit".

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