Date: Tue, 19 May 2020 15:19:08 -0700
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Subject: Re: [quicwg/base-drafts] Add OnPacketReceived to pseudocode (#3653)
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@ianswett commented on this pull request.



> @@ -1142,6 +1142,22 @@ Pseudocode for OnPacketSent follows:
      SetLossDetectionTimer()
 ~~~
 
+## On Receiving a Datagram
+
+When a server is blocked by anti-amplification limits, receiving
+a datagram unblocks it, even if none of the packets in the
+datagram are successfully processed. In such a case, the PTO
+timer may need to be armed.

I thought a padded ACK-only packet could hit the limit without bytes in flight, but I realize that each full-sized ACK allows 3 packets to be sent.  Updating text.

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<p></p>
<p><b>@ianswett</b> commented on this pull request.</p>

<hr>

<p>In <a href="https://github.com/quicwg/base-drafts/pull/3653#discussion_r427632916">draft-ietf-quic-recovery.md</a>:</p>
<pre style='color:#555'>&gt; @@ -1142,6 +1142,22 @@ Pseudocode for OnPacketSent follows:
      SetLossDetectionTimer()
 ~~~
 
+## On Receiving a Datagram
+
+When a server is blocked by anti-amplification limits, receiving
+a datagram unblocks it, even if none of the packets in the
+datagram are successfully processed. In such a case, the PTO
+timer may need to be armed.
</pre>
<p>I thought a padded ACK-only packet could hit the limit without bytes in flight, but I realize that each full-sized ACK allows 3 packets to be sent.  Updating text.</p>

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