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Re: [quicwg/base-drafts] Editorial suggestion against #3313 (#3314)

ekr <notifications@github.com> Sun, 05 January 2020 15:38 UTC

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Date: Sun, 05 Jan 2020 07:38:54 -0800
From: ekr <notifications@github.com>
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Subject: Re: [quicwg/base-drafts] Editorial suggestion against #3313 (#3314)
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ekr commented on this pull request.



> @@ -4747,9 +4747,10 @@ QUIC acknowledgements are irrevocable.  Once acknowledged, a packet remains
 acknowledged, even if it does not appear in a future ACK frame.  This is unlike
 TCP SACKs ({{?RFC2018}}).
 
-An ACK frame acknowledges packets in the same packet number space as the packet
-in which it is contained.  As such, the same packet number can be acknowledged
-in different packet number spaces.
+The same packet number might be used to identify packets from multiple packet
+number spaces. An acknowledgement for a packet therefore needs to indicate both
+its packet number and its packet number space.  An ACK frame acknowledges packet
+numbers in the same space as the packet in which the ACK frame is contained.

These three sentences are kind of hard to connect.

Perhaps:
"An acknowledgment for a packet needs to indicate both its packet number and its packet number space, which is accomplished by having each ACK frame only acknowledge packet numbers..."


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