Re: [quicwg/base-drafts] introduce a max_connection_ids transport parameter (#1998)

martinduke <notifications@github.com> Wed, 13 February 2019 16:10 UTC

Return-Path: <noreply@github.com>
X-Original-To: quic-issues@ietfa.amsl.com
Delivered-To: quic-issues@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 0DE871271FF for <quic-issues@ietfa.amsl.com>; Wed, 13 Feb 2019 08:10:33 -0800 (PST)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -6.597
X-Spam-Level:
X-Spam-Status: No, score=-6.597 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_PASS=-0.001] autolearn=ham autolearn_force=no
Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (1024-bit key) header.d=github.com
Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 2VDmgmQId_v8 for <quic-issues@ietfa.amsl.com>; Wed, 13 Feb 2019 08:10:31 -0800 (PST)
Received: from out-7.smtp.github.com (out-7.smtp.github.com [192.30.252.198]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id E379612426A for <quic-issues@ietf.org>; Wed, 13 Feb 2019 08:10:30 -0800 (PST)
Date: Wed, 13 Feb 2019 08:10:29 -0800
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=github.com; s=pf2014; t=1550074229; bh=GiCl8g79NVvMylDdtpsjQBG9aSOXOzYMToozahCTJcM=; h=Date:From:Reply-To:To:Cc:In-Reply-To:References:Subject:List-ID: List-Archive:List-Post:List-Unsubscribe:From; b=zTYGF34wFL0bZVefrNSOIVN39HdFtGDOtbr08DsyAOOJ035TrA4enStjnjvTiNDCU iNSh8aTTgnPfatdMxiykabP0v+QdnjM3jmGa4C8af7s/+KJjH+3naNw4gLokk5PR8I NOYbLadE55kXnWioEDlA2lmAM54KtDw46JpRnIMY=
From: martinduke <notifications@github.com>
Reply-To: quicwg/base-drafts <reply+0166e4ab5b0ca9a7b0f23aa85151a3a89c93a56c2eb065ec92cf00000001187c037592a169ce16a7e5d6@reply.github.com>
To: quicwg/base-drafts <base-drafts@noreply.github.com>
Cc: Subscribed <subscribed@noreply.github.com>
Message-ID: <quicwg/base-drafts/pull/1998/review/203300579@github.com>
In-Reply-To: <quicwg/base-drafts/pull/1998@github.com>
References: <quicwg/base-drafts/pull/1998@github.com>
Subject: Re: [quicwg/base-drafts] introduce a max_connection_ids transport parameter (#1998)
Mime-Version: 1.0
Content-Type: multipart/alternative; boundary="--==_mimepart_5c64417577ec2_532d3fb389cd45c018228a"; charset=UTF-8
Content-Transfer-Encoding: 7bit
Precedence: list
X-GitHub-Sender: martinduke
X-GitHub-Recipient: quic-issues
X-GitHub-Reason: subscribed
X-Auto-Response-Suppress: All
X-GitHub-Recipient-Address: quic-issues@ietf.org
Archived-At: <https://mailarchive.ietf.org/arch/msg/quic-issues/Lsj8UPfcQd7RFbmEd3gpICIzjr4>
X-BeenThere: quic-issues@ietf.org
X-Mailman-Version: 2.1.29
List-Id: Notification list for GitHub issues related to the QUIC WG <quic-issues.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/quic-issues>, <mailto:quic-issues-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/quic-issues/>
List-Post: <mailto:quic-issues@ietf.org>
List-Help: <mailto:quic-issues-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/quic-issues>, <mailto:quic-issues-request@ietf.org?subject=subscribe>
X-List-Received-Date: Wed, 13 Feb 2019 16:10:33 -0000

martinduke commented on this pull request.



> @@ -3981,6 +3979,12 @@ A client MUST NOT include an original connection ID, a stateless reset token, or
 a preferred address.  A server MUST treat receipt of any of these transport
 parameters as a connection error of type TRANSPORT_PARAMETER_ERROR.
 
+max_connection_ids (0x000e):
+
+: The maximum number of connection IDs that the peer is willing to store.
+  This value includes only connection IDs sent in NEW_CONNECTION_ID frames.

Isn't the number of stored connection IDs symmetric? In practice, each address change requires both sides to change their CIDs (except for zero-length cases).

I'm not sure I see any point in ever storing more than min(my_max_connection_ids, your_max_connection_ids)

-- 
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/1998#discussion_r256467839