Date: Fri, 14 Dec 2018 17:31:55 -0800
From: janaiyengar <notifications@github.com>
Reply-To: quicwg/base-drafts
 <reply+0166e4abb42b49f7286a1fc0f1e3b2f7586ab858807c08e892cf00000001182c1b8b92a169ce174d411b@reply.github.com>
To: quicwg/base-drafts <base-drafts@noreply.github.com>
Cc: Subscribed <subscribed@noreply.github.com>
Message-ID: <quicwg/base-drafts/pull/2183/review/185335823@github.com>
In-Reply-To: <quicwg/base-drafts/pull/2183@github.com>
References: <quicwg/base-drafts/pull/2183@github.com>
Subject: Re: [quicwg/base-drafts] The first Initial needs to fit into a single
 IP packet (#2183)
Mime-Version: 1.0
Content-Type: multipart/alternative;
 boundary="--==_mimepart_5c14598be8e81_6ad13ff7ebcd45c48317a3";
 charset=UTF-8
Content-Transfer-Encoding: 7bit
Precedence: list
Archived-At: <https://mailarchive.ietf.org/arch/msg/quic-issues/1UMAgpttOwdiYj2gKIF_6tuIL3I>


----==_mimepart_5c14598be8e81_6ad13ff7ebcd45c48317a3
Content-Type: text/plain;
 charset=UTF-8
Content-Transfer-Encoding: 7bit

janaiyengar commented on this pull request.



> @@ -3081,14 +3081,14 @@ corrupt ECN codepoints in the IP header.
 The QUIC packet size includes the QUIC header and protected payload, but not the
 UDP or IP header.
 
-Clients MUST ensure they send the first Initial packet in a UDP datagram that is
-at least 1200 bytes.  The payload of a UDP datagram carrying the Initial packet
-MUST be expanded to at least 1200 bytes, by adding PADDING frames to the Initial
-packet and/or by combining the Initial packet with a 0-RTT packet (see
-{{packet-coalesce}}).  Sending a UDP datagram of this size ensures that the
-network path supports a reasonable Maximum Transmission Unit (MTU), and helps
-reduce the amplitude of amplification attacks caused by server responses toward
-an unverified client address, see {{address-validation}}.
+Clients MUST ensure they send the first Initial packet in single IP packet.  The

Should this say something about the first Initial packet (and the first Initial packet after a Retry)?

-- 
You are receiving this because you are subscribed to this thread.
Reply to this email directly or view it on GitHub:
https://github.com/quicwg/base-drafts/pull/2183#pullrequestreview-185335823
----==_mimepart_5c14598be8e81_6ad13ff7ebcd45c48317a3
Content-Type: text/html;
 charset=UTF-8
Content-Transfer-Encoding: 7bit

<p><b>@janaiyengar</b> commented on this pull request.</p>

<hr>

<p>In <a href="https://github.com/quicwg/base-drafts/pull/2183#discussion_r241931992">draft-ietf-quic-transport.md</a>:</p>
<pre style='color:#555'>&gt; @@ -3081,14 +3081,14 @@ corrupt ECN codepoints in the IP header.
 The QUIC packet size includes the QUIC header and protected payload, but not the
 UDP or IP header.
 
-Clients MUST ensure they send the first Initial packet in a UDP datagram that is
-at least 1200 bytes.  The payload of a UDP datagram carrying the Initial packet
-MUST be expanded to at least 1200 bytes, by adding PADDING frames to the Initial
-packet and/or by combining the Initial packet with a 0-RTT packet (see
-{{packet-coalesce}}).  Sending a UDP datagram of this size ensures that the
-network path supports a reasonable Maximum Transmission Unit (MTU), and helps
-reduce the amplitude of amplification attacks caused by server responses toward
-an unverified client address, see {{address-validation}}.
+Clients MUST ensure they send the first Initial packet in single IP packet.  The
</pre>
<p>Should this say something about the first Initial packet (and the first Initial packet after a Retry)?</p>

<p style="font-size:small;-webkit-text-size-adjust:none;color:#666;">&mdash;<br />You are receiving this because you are subscribed to this thread.<br />Reply to this email directly, <a href="https://github.com/quicwg/base-drafts/pull/2183#pullrequestreview-185335823">view it on GitHub</a>, or <a href="https://github.com/notifications/unsubscribe-auth/AWbkq2qublbL-jrrXDENaw24RWPKHWfDks5u5FELgaJpZM4ZSxPj">mute the thread</a>.<img src="https://github.com/notifications/beacon/AWbkq4d2MnQqRHQqcxNyp77MxRejo9TNks5u5FELgaJpZM4ZSxPj.gif" height="1" width="1" alt="" /></p>
<script type="application/json" data-scope="inboxmarkup">{"api_version":"1.0","publisher":{"api_key":"05dde50f1d1a384dd78767c55493e4bb","name":"GitHub"},"entity":{"external_key":"github/quicwg/base-drafts","title":"quicwg/base-drafts","subtitle":"GitHub repository","main_image_url":"https://github.githubassets.com/images/email/message_cards/header.png","avatar_image_url":"https://github.githubassets.com/images/email/message_cards/avatar.png","action":{"name":"Open in GitHub","url":"https://github.com/quicwg/base-drafts"}},"updates":{"snippets":[{"icon":"PERSON","message":"@janaiyengar commented on #2183"}],"action":{"name":"View Pull Request","url":"https://github.com/quicwg/base-drafts/pull/2183#pullrequestreview-185335823"}}}</script>
<script type="application/ld+json">[
{
"@context": "http://schema.org",
"@type": "EmailMessage",
"potentialAction": {
"@type": "ViewAction",
"target": "https://github.com/quicwg/base-drafts/pull/2183#pullrequestreview-185335823",
"url": "https://github.com/quicwg/base-drafts/pull/2183#pullrequestreview-185335823",
"name": "View Pull Request"
},
"description": "View this Pull Request on GitHub",
"publisher": {
"@type": "Organization",
"name": "GitHub",
"url": "https://github.com"
}
}
]</script>
----==_mimepart_5c14598be8e81_6ad13ff7ebcd45c48317a3--