Re: [DNSOP] Fwd: New Version Notification for draft-bellis-dnsop-edns-tags-00.txt

Ray Bellis <> Tue, 05 March 2019 09:27 UTC

Return-Path: <>
Received: from localhost (localhost []) by (Postfix) with ESMTP id 6425312785F for <>; Tue, 5 Mar 2019 01:27:23 -0800 (PST)
X-Virus-Scanned: amavisd-new at
X-Spam-Flag: NO
X-Spam-Score: -1.901
X-Spam-Status: No, score=-1.901 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, 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 fXSB9Yf2fOrB for <>; Tue, 5 Mar 2019 01:27:21 -0800 (PST)
Received: from ( [IPv6:2a03:9800:20:1::2]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by (Postfix) with ESMTPS id 12C891276D0 for <>; Tue, 5 Mar 2019 01:27:21 -0800 (PST)
DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed;; s=dkim; h=Content-Transfer-Encoding:Content-Type:In-Reply-To: MIME-Version:Date:Message-ID:From:References:To:Subject:Sender:Reply-To:Cc: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help:List-Unsubscribe: List-Subscribe:List-Post:List-Owner:List-Archive; bh=WdbcbveUzBB6aINZuiLn7y+D/Wzouy6Drjc6K2hPoOI=; b=RwxILkItoYr8Hizd1TBQTSi5sc A6AvpT5JDPcTd0dI6hW7vVxEjtD1UIxVyYmT6c06zWelZUIEl39vS43VHuRvIiyYVtVsj1wHkykVp Rpz3dB12xIY+7JrWSB1tLPwB3qj8hH/2vaD8FjRZYLzI78Z2hTRIBWObKU9GtXzD71TU=;
Received: from [] (port=64808 helo=Rays-MacBook-Pro.local) by ([]:465) with esmtpsa ( (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) id 1h16M2-0001rQ-QA (Exim 4.89) for (return-path <>); Tue, 05 Mar 2019 09:27:19 +0000
References: <> <> <>
From: Ray Bellis <>
Message-ID: <>
Date: Tue, 5 Mar 2019 09:27:18 +0000
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.14; rv:60.0) Gecko/20100101 Thunderbird/60.5.1
MIME-Version: 1.0
In-Reply-To: <>
Content-Type: text/plain; charset=utf-8; format=flowed
Content-Language: en-GB
Content-Transfer-Encoding: 7bit
Archived-At: <>
Subject: Re: [DNSOP] Fwd: New Version Notification for draft-bellis-dnsop-edns-tags-00.txt
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: IETF DNSOP WG mailing list <>
List-Unsubscribe: <>, <>
List-Archive: <>
List-Post: <>
List-Help: <>
List-Subscribe: <>, <>
X-List-Received-Date: Tue, 05 Mar 2019 09:27:23 -0000

On 05/03/2019 09:11, Shane Kerr wrote:

> I don't see much value in this beyond the already-standardized EDNS 
> range reserved for local/experimental use.


The additional value is being able to use the feature in off-the-shelf 
DNS software.

Stretching the analogy to BGP communities slightly (the authors had 
already discussed this internally when working on the draft, and Wes has 
made that comparison too):

Folks *could* have decided to use some unassigned BGP Path attribute 
value to carry similar information, but each implementor would have had 
their own special version of it.   Making it _standardised_ is what 
allows support to be ubiquitous (and interoperable).