Re: [quicwg/base-drafts] Address change and consent to send (#161)

[mirjak <[e-mail]>]

I think "the congestion window MAY be increased to the value it had prior
to migration; this increase should occur only when it is likely that the
change in IP address or port did not result in a path change" is about right. MAY indicates that it is rather not recommended by default but as you have already a guess about the available bandwidth on the path, you can do some smarter probing like chirping where you send packets with different inter packet gaps. Or we don't say anything about this and leave it to the congestion controller because every congestion controller will anyway implement a different way to increase the window.

Another question: do we need to decrease to the minimal congestion window or the initial congestion window?

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