Subject: Re: [quicwg/base-drafts] Relax 1200B requirement for Initial ACKs/Retx (#1916)

From: martinduke <[email-masked]>
Date: Thu, 01 Nov 2018 19:28:01 -0700

martinduke commented on this pull request.

> @@ -1556,9 +1556,9 @@ times as many bytes as the number of bytes they have received.  This limits the
 magnitude of any amplification attack that can be mounted using spoofed source
 addresses.
 
-If sending a UDP datagram consisting entirely of an Initial Packet, clients
-MUST pad that packet to at least 1200 bytes unless the client has received a
-Handshake Packet ack from the server. This ensures that the server is not
+Clients MUST pad UDP datagrams that contain only Initial packets to 1200 octets.
+Once a client has received an acknowledgment for a Handshake packet it MAY send
+smaller datagrams.  Sending padded datagrams ensures that the server is not

I agree it doesn't matter much. The cases I can think involve somewhat naive retransmissions of things that have been implicitly acked.

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