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

Marten Seemann <> Tue, 14 January 2020 01:57 UTC

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Subject: Re: [quicwg/base-drafts] Padding outside QUIC packet (#3333)
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> Because bytes outside of QUIC packet are most likely unprocessable, it is not counted to the data size that server has received. That means that server might get choked during handshake with packet losses.

@tatsuhiro-t raises an interesting point here. While it's certainly not impossible to use the size of the UDP datagram for the amplification limit, this would be quite hard to do in my implementation. Undecryptable packets are discarded way down in the stack, and passing up that information to the congestion controller would require quite a bit of extra work.

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