IETF Logo Mail Archive

Re: [DNSOP] Priming query transport selection

Ray.Bellis@nominet.org.uk Fri, 15 January 2010 08:14 UTC

Return-Path: <Ray.Bellis@nominet.org.uk>
X-Original-To: dnsop@core3.amsl.com
Delivered-To: dnsop@core3.amsl.com
Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id A768E3A68AA for <dnsop@core3.amsl.com>; Fri, 15 Jan 2010 00:14:31 -0800 (PST)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -6.289
X-Spam-Level:
X-Spam-Status: No, score=-6.289 tagged_above=-999 required=5 tests=[AWL=0.309, BAYES_00=-2.599, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_MED=-4]
Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 6Ob3HuUknRKj for <dnsop@core3.amsl.com>; Fri, 15 Jan 2010 00:14:30 -0800 (PST)
Received: from mx4.nominet.org.uk (mx4.nominet.org.uk [213.248.199.24]) by core3.amsl.com (Postfix) with ESMTP id 5722E3A686E for <dnsop@ietf.org>; Fri, 15 Jan 2010 00:14:29 -0800 (PST)
DomainKey-Signature: s=main.dk.nominet.selector; d=nominet.org.uk; c=nofws; q=dns; h=X-IronPort-AV:Received:In-Reply-To:References:To:Cc: Subject:MIME-Version:X-Mailer:Message-ID:From:Date: X-MIMETrack:Content-Type; b=jtNAow/EFgwnXMVuxBbwDceeQYfz4YGcdMHE61XJ9K+XPzDhUDQDsNV1 FS0pyKBECBXUNd51Z7eqSjTMC2o95Ze2I/fV5TPGAO15LCJOZ02JnE2+R +iNbz9QqB0S6Nzh;
DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=nominet.org.uk; i=Ray.Bellis@nominet.org.uk; q=dns/txt; s=main.dkim.nominet.selector; t=1263543268; x=1295079268; h=from:sender:reply-to:subject:date:message-id:to:cc: mime-version:content-transfer-encoding:content-id: content-description:resent-date:resent-from:resent-sender: resent-to:resent-cc:resent-message-id:in-reply-to: references:list-id:list-help:list-unsubscribe: list-subscribe:list-post:list-owner:list-archive; z=From:=20Ray.Bellis@nominet.org.uk|Subject:=20Re:=20[DNSO P]=20Priming=20query=20transport=20selection|Date:=20Fri, =2015=20Jan=202010=2008:14:25=20+0000|Message-ID:=20<OFB6 B29906.2F0782B8-ON802576AC.002CE380-802576AC.002D4402@nom inet.org.uk>|To:=20Sebastian=20Castro=20<sebastian@nzrs.n et.nz>|Cc:=20dnsop@ietf.org|MIME-Version:=201.0 |In-Reply-To:=20<4B4F7EE8.2030104@nzrs.net.nz> |References:=20<201001131823.o0DINxYv068180@stora.ogud.co m>=09<555CFB98-BB21-4AD4-9D4A-3AF3BD98E4B2@rfc1035.com> =0D=0A=09<D9CCEA0D18D9D5B457A90853@Ximines.local>=09<631E 7931-47D4-4AAF-B2C6-62DA6DA5A4CA@rfc1035.com>=0D=0A=09<CD E7E0414BC50C42E4FCC54F@Ximines.local>=09<E87EE584-97B5-4F E8-B47D-21048A702B51@rfc1035.com>=0D=0A=09<201001132241.o 0DMfOO3070819@stora.ogud.com>=09<OFC2033777.3267FDFE-ON80 2576AB.002F2429-802576AB.002F8339@nominet.org.uk>=20<4B4F 7EE8.2030104@nzrs.net.nz>; bh=kljmm2Od0FEF17nbscNcwEaRPS7egGEZ2q5GJ8yUZzI=; b=Mo8PZ3aPE/3etpzUCRJJiJy+GlsxKKd8LB7HCDXYjUPTDlq05M/Vdlzw eNdPV3n9RmAhwl1bTp/AcZcF16aYSswab2cPn7Z7227GEPYgWeid9DFqv 7SvOMLer/VfZ5Gr;
X-IronPort-AV: E=Sophos;i="4.49,281,1262563200"; d="scan'208";a="15557160"
Received: from notes1.nominet.org.uk ([213.248.197.128]) by mx4.nominet.org.uk with ESMTP; 15 Jan 2010 08:14:26 +0000
In-Reply-To: <4B4F7EE8.2030104@nzrs.net.nz>
References: <201001131823.o0DINxYv068180@stora.ogud.com> <555CFB98-BB21-4AD4-9D4A-3AF3BD98E4B2@rfc1035.com> <D9CCEA0D18D9D5B457A90853@Ximines.local> <631E7931-47D4-4AAF-B2C6-62DA6DA5A4CA@rfc1035.com> <CDE7E0414BC50C42E4FCC54F@Ximines.local> <E87EE584-97B5-4FE8-B47D-21048A702B51@rfc1035.com> <201001132241.o0DMfOO3070819@stora.ogud.com> <OFC2033777.3267FDFE-ON802576AB.002F2429-802576AB.002F8339@nominet.org.uk> <4B4F7EE8.2030104@nzrs.net.nz>
To: Sebastian Castro <sebastian@nzrs.net.nz>
MIME-Version: 1.0
X-Mailer: Lotus Notes Release 8.5 December 05, 2008
Message-ID: <OFB6B29906.2F0782B8-ON802576AC.002CE380-802576AC.002D4402@nominet.org.uk>
From: Ray.Bellis@nominet.org.uk
Date: Fri, 15 Jan 2010 08:14:25 +0000
X-MIMETrack: Serialize by Router on notes1/Nominet(Release 7.0.1FP1 | May 25, 2006) at 15/01/2010 08:14:25 AM, Serialize complete at 15/01/2010 08:14:25 AM
Content-Type: multipart/alternative; boundary="=_alternative 002D4400802576AC_="
Cc: dnsop@ietf.org
Subject: Re: [DNSOP] Priming query transport selection
X-BeenThere: dnsop@ietf.org
X-Mailman-Version: 2.1.9
Precedence: list
List-Id: IETF DNSOP WG mailing list <dnsop.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/listinfo/dnsop>, <mailto:dnsop-request@ietf.org?subject=unsubscribe>
List-Archive: <http://www.ietf.org/mail-archive/web/dnsop>
List-Post: <mailto:dnsop@ietf.org>
List-Help: <mailto:dnsop-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/dnsop>, <mailto:dnsop-request@ietf.org?subject=subscribe>
X-List-Received-Date: Fri, 15 Jan 2010 08:14:31 -0000

> The text in RFC 2671, presented as a hint, could deal to similar issues
> with the TCP transport for DNS (working to change SHOULD for MUST).

Can you elaborate on what you mean?

I presume you're aware of my draft-ietf-dnsext-dns-tcp-requirements ?

> From BIND ARM 9.7.0
> 
> ----------------------
> edns-udp-size
>    Sets the advertised EDNS UDP buffer size in bytes to control the size
> of packets received.
>    Valid values are 1024 to 4096 (values outside this range will be
> silently adjusted)
> ----------------------

Yes, that's the one.  I was sat on a train with a flakey 3G connection 
when I sent the last message so couldn't check it, but that confirms my 
recollection.

I've already submitted to ISC that the choice of value should be left 
entirely to the sysadmin, and not restricted to an arbitrary lower value 
by their software.

kind regards,

Ray

-- 
Ray Bellis, MA(Oxon) MIET
Senior Researcher in Advanced Projects, Nominet
e: ray@nominet.org.uk, t: +44 1865 332211

v2.23.0 | Report a Bug | By Email