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correct the definition of the ACK FRAME N bit #633

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Jun 15, 2017
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3 changes: 1 addition & 2 deletions draft-ietf-quic-transport.md
Original file line number Diff line number Diff line change
Expand Up @@ -1606,8 +1606,7 @@ The type byte for a ACK frame contains embedded flags, and is formatted as

* The first three bits must be set to 101 indicating that this is an ACK frame.

* The `N` bit indicates whether the frame has more than 1 range of acknowledged
packets (i.e., whether the ACK Block Section contains a Num Blocks field).
* The `N` bit indicates whether the frame contains a Num Blocks field.

* The two `LL` bits encode the length of the Largest Acknowledged field.
The values 00, 01, 02, and 03 indicate lengths of 8, 16, 32, and 64
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