[quicwg/base-drafts] The initial table capacity is zero (#2363)

Martin Thomson <notifications@github.com> Wed, 23 January 2019 04:11 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 2F8D2130E0A for <quic-issues@ietfa.amsl.com>; Tue, 22 Jan 2019 20:11:04 -0800 (PST)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -10.935
X-Spam-Level:
X-Spam-Status: No, score=-10.935 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIMWL_WL_HIGH=-4.553, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, HTML_IMAGE_ONLY_24=1.618, 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 7d17AkuHqrWW for <quic-issues@ietfa.amsl.com>; Tue, 22 Jan 2019 20:11:02 -0800 (PST)
Received: from out-6.smtp.github.com (out-6.smtp.github.com [192.30.252.197]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 66552130DFA for <quic-issues@ietf.org>; Tue, 22 Jan 2019 20:11:02 -0800 (PST)
Date: Tue, 22 Jan 2019 20:11:01 -0800
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=github.com; s=pf2014; t=1548216661; bh=BzUcyThzlzhibu/0iI/spCL7YMg6SxoMIerlHvh0Rdo=; h=Date:From:Reply-To:To:Cc:Subject:List-ID:List-Archive:List-Post: List-Unsubscribe:From; b=ZdtwpMG3TgT+FPiN6ILfyX43GjbcR0O1tKhlZoDEN+7MLFwqY9TWePMmG+60kxTI5 1/Fu1gr3huFbTVr7UHEwFYk5oeh2WSWty64k2j8aIV/YKyZq92xoAFM7A710bKtpkd 1TCfqsL7LwLRZD1/w7SG2ooX9tDJPIi4PK61Tilk=
From: Martin Thomson <notifications@github.com>
Reply-To: quicwg/base-drafts <reply+0166e4ab68400d52a845066c75864e9620497c24b360501792cf00000001185fab5592a169ce17f6fe9f@reply.github.com>
To: quicwg/base-drafts <base-drafts@noreply.github.com>
Cc: Subscribed <subscribed@noreply.github.com>
Message-ID: <quicwg/base-drafts/issues/2363@github.com>
Subject: [quicwg/base-drafts] The initial table capacity is zero (#2363)
Mime-Version: 1.0
Content-Type: multipart/alternative; boundary="--==_mimepart_5c47e9557d618_71303fe9eced45c0546661"; charset="UTF-8"
Content-Transfer-Encoding: 7bit
Precedence: list
X-GitHub-Sender: martinthomson
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/REt-x7CHFedNgqZqSWxl_wNGLn0>
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, 23 Jan 2019 04:11:04 -0000

Which means that encoders have to send a table capacity change instruction as the first instruction they send on the table update stream.  This is never stated clearly in the draft.

It might be possible to assume - incorrectly - that the table capacity is initially set to the maximum value.  We even contemplated this possibility until the complexities of 0-RTT and stream concurrency squashed those dreams.

-- 
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/issues/2363