Re: [quicwg/base-drafts] Change PTO to be per packet number space (#3066)

ianswett <> Thu, 24 October 2019 17:20 UTC

Return-Path: <>
Received: from localhost (localhost []) by (Postfix) with ESMTP id 0F702120808 for <>; Thu, 24 Oct 2019 10:20:53 -0700 (PDT)
X-Virus-Scanned: amavisd-new at
X-Spam-Flag: NO
X-Spam-Score: -6.596
X-Spam-Status: No, score=-6.596 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, HTML_IMAGE_ONLY_28=1.404, HTML_MESSAGE=0.001, MAILING_LIST_MULTI=-1, RCVD_IN_DNSWL_HI=-5, SPF_HELO_NONE=0.001, SPF_PASS=-0.001] autolearn=ham autolearn_force=no
Authentication-Results: (amavisd-new); dkim=pass (1024-bit key)
Received: from ([]) by localhost ( []) (amavisd-new, port 10024) with ESMTP id aSz-qUPlDPwa for <>; Thu, 24 Oct 2019 10:20:48 -0700 (PDT)
Received: from ( []) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by (Postfix) with ESMTPS id AEFDE120033 for <>; Thu, 24 Oct 2019 10:20:48 -0700 (PDT)
Date: Thu, 24 Oct 2019 10:20:47 -0700
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;; s=pf2014; t=1571937648; bh=erb6jrjOn6Fmj/hw/AjLUKdNMx84pXalRqnL6kx8FL0=; h=Date:From:Reply-To:To:Cc:In-Reply-To:References:Subject:List-ID: List-Archive:List-Post:List-Unsubscribe:From; b=tmpIEQ2+AyeRRYwvqaS8jI4Kyd4hGdFE7tQe4iLxyXesCLvVs5ZwFOdsc3ENW7GTy J8FvEyG4ieaGxttP9LJm4djjCU9jVVXJ+vGZSuYpix/SuguHh3vnSEVJrkgY7UBWha hJUDIqjnPNFPNiBMxxaN+7AIoz17PE5CnXFIz6vc=
From: ianswett <>
Reply-To: quicwg/base-drafts <>
To: quicwg/base-drafts <>
Cc: Subscribed <>
Message-ID: <quicwg/base-drafts/pull/3066/review/>
In-Reply-To: <quicwg/base-drafts/pull/>
References: <quicwg/base-drafts/pull/>
Subject: Re: [quicwg/base-drafts] Change PTO to be per packet number space (#3066)
Mime-Version: 1.0
Content-Type: multipart/alternative; boundary="--==_mimepart_5db1dd6fe8300_25d3fc10becd9648139d"; charset="UTF-8"
Content-Transfer-Encoding: 7bit
Precedence: list
X-GitHub-Sender: ianswett
X-GitHub-Recipient: quic-issues
X-GitHub-Reason: subscribed
X-Auto-Response-Suppress: All
Archived-At: <>
X-Mailman-Version: 2.1.29
List-Id: Notification list for GitHub issues related to the QUIC WG <>
List-Unsubscribe: <>, <>
List-Archive: <>
List-Post: <>
List-Help: <>
List-Subscribe: <>, <>
X-List-Received-Date: Thu, 24 Oct 2019 17:20:53 -0000

ianswett commented on this pull request.

> @@ -522,9 +525,17 @@ removed from bytes in flight when the Initial and Handshake keys are discarded.
 ### Sending Probe Packets
 When a PTO timer expires, a sender MUST send at least one ack-eliciting packet
-as a probe, unless there is no data available to send.  An endpoint MAY send up
-to two full-sized datagrams containing ack-eliciting packets, to avoid an
-expensive consecutive PTO expiration due to a single lost datagram.
+in the packet number space as a probe, unless there is no data available to
+send.  An endpoint MAY send up to two full-sized datagrams containing
+ack-eliciting packets, to avoid an expensive consecutive PTO expiration due
+to a single lost datagram.
+In addition to sending data in the packet number space for which the timer
+expired, the sender SHOULD coalesce ack-eliciting packets from all other packet

'all' removed, since coalescing 2 is sufficient.

You are receiving this because you are subscribed to this thread.
Reply to this email directly or view it on GitHub: