Re: [L3sm] New Version Notification for draft-wu-l3sm-rfc8049bis-02.txt

David Ball <daviball@cisco.com> Thu, 24 August 2017 12:29 UTC

Return-Path: <daviball@cisco.com>
X-Original-To: l3sm@ietfa.amsl.com
Delivered-To: l3sm@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 813281326EA for <l3sm@ietfa.amsl.com>; Thu, 24 Aug 2017 05:29:01 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -14.24
X-Spam-Level:
X-Spam-Status: No, score=-14.24 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, HTML_MESSAGE=0.001, HTML_OBFUSCATE_05_10=0.26, RCVD_IN_DNSWL_HI=-5, SPF_PASS=-0.001, USER_IN_DEF_DKIM_WL=-7.5] autolearn=ham autolearn_force=no
Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (1024-bit key) header.d=cisco.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 tTFmHKmDWsWb for <l3sm@ietfa.amsl.com>; Thu, 24 Aug 2017 05:29:00 -0700 (PDT)
Received: from aer-iport-3.cisco.com (aer-iport-3.cisco.com [173.38.203.53]) (using TLSv1.2 with cipher DHE-RSA-SEED-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 5F926132949 for <l3sm@ietf.org>; Thu, 24 Aug 2017 05:28:59 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=cisco.com; i=@cisco.com; l=4278; q=dns/txt; s=iport; t=1503577739; x=1504787339; h=subject:to:cc:references:from:message-id:date: mime-version:in-reply-to; bh=OfgrE0LpqJcU3tqEzNFyJrGTjhiloqFIvn7/ixpp+zk=; b=eq1NiMgFAZPyminyFAQ37OVy3jQ7QlAwEajePRBtPRntznVeQkM+ZdJ4 quVfUroODzRr0jRt6tws3JbXfyYoECOEUdSBLUEfbub04uFsLt9KCU4Bp ZQg8/wjlemRZ/jgSLALwNikvP2fvyVwtudVv7kmZGAVxf2YhborZWJIuW s=;
X-IronPort-Anti-Spam-Filtered: true
X-IronPort-Anti-Spam-Result: A0A5AgBuxZ5Z/xbLJq1dGQEBAQEBAQEBAQEBBwEBAQEBgm+CZIN3ixGREpBoh0+FRwKFDRQBAgEBAQEBAQFrKIUZAQIDI1QCEAsECgoqAgJXBgEMBgIBAYotrl+CJyeLOAEBAQEBAQEBAQEBAQEBAQEBAQEBAR2DKoNOgg6CfIgGgmEFoFmURYIShWODWYcWjUCIcDYhgQoyIQgcFYVgHIFoPzaLMAEBAQ
X-IronPort-AV: E=Sophos;i="5.41,421,1498521600"; d="scan'208,217";a="655184960"
Received: from aer-iport-nat.cisco.com (HELO aer-core-4.cisco.com) ([173.38.203.22]) by aer-iport-3.cisco.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 24 Aug 2017 12:28:57 +0000
Received: from [10.63.23.84] (dhcp-ensft1-uk-vla370-10-63-23-84.cisco.com [10.63.23.84]) by aer-core-4.cisco.com (8.14.5/8.14.5) with ESMTP id v7OCSunJ025721; Thu, 24 Aug 2017 12:28:57 GMT
To: Qin Wu <bill.wu@huawei.com>, "l3sm@ietf.org" <l3sm@ietf.org>
Cc: Stephane Litkowski <stephane.litkowski@orange.com>, Kenichi Ogaki <ke-oogaki@kddi.com>, "adrian@olddog.co.uk" <adrian@olddog.co.uk>
References: <B8F9A780D330094D99AF023C5877DABA9AA5D7A2@nkgeml513-mbx.china.huawei.com> <c76328ad-b71e-b2a3-92a4-b02beac2be7d@cisco.com> <B8F9A780D330094D99AF023C5877DABA9AABA8A4@nkgeml513-mbx.china.huawei.com> <1823e4d3-c6ff-f3ca-d140-74fc5edba188@cisco.com> <B8F9A780D330094D99AF023C5877DABA9AACC2FE@nkgeml513-mbx.china.huawei.com> <57523131-0016-069a-8663-63c3be1fac81@cisco.com> <B8F9A780D330094D99AF023C5877DABA9AACC7B0@nkgeml513-mbx.china.huawei.com> <aca381d3-9dfa-bdf0-fac0-1be4e0ad6ce6@cisco.com> <B8F9A780D330094D99AF023C5877DABA9AACC813@nkgeml513-mbx.china.huawei.com>
From: David Ball <daviball@cisco.com>
Message-ID: <5f753d23-9cc1-9cf4-a587-8e250e960a57@cisco.com>
Date: Thu, 24 Aug 2017 13:28:56 +0100
User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:52.0) Gecko/20100101 Thunderbird/52.2.1
MIME-Version: 1.0
In-Reply-To: <B8F9A780D330094D99AF023C5877DABA9AACC813@nkgeml513-mbx.china.huawei.com>
Content-Type: multipart/alternative; boundary="------------859E938D2FF5FE00792FBE9A"
Content-Language: en-GB
Archived-At: <https://mailarchive.ietf.org/arch/msg/l3sm/_SG9aCrp_96iMd90NrCa_kuynC8>
Subject: Re: [L3sm] New Version Notification for draft-wu-l3sm-rfc8049bis-02.txt
X-BeenThere: l3sm@ietf.org
X-Mailman-Version: 2.1.22
Precedence: list
List-Id: L3VPN Service YANG Model discussion group <l3sm.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/l3sm>, <mailto:l3sm-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/l3sm/>
List-Post: <mailto:l3sm@ietf.org>
List-Help: <mailto:l3sm-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/l3sm>, <mailto:l3sm-request@ietf.org?subject=subscribe>
X-List-Received-Date: Thu, 24 Aug 2017 12:29:01 -0000

On 24/08/2017 11:50, Qin Wu wrote:
>
> [DB] Like I said, my reading of RFC6536 is that it doesn't cascade 
> down the tree, so it needs to be put on every node.  Just putting it 
> on the container would mean that the client couldn't create the 
> container, but if the container already existed, they would still be 
> able to write to everything inside it.  See RFC6536 section 3.2.3 for 
> example.  I think the example in RFC7317 is wrong, although it is the 
> same authors as RFC6536, which is curious.  I'll check with Martin.
>
> [Qin]:  Yes, we need to get confirm about this, it looks to me if we 
> apply “nacm:default-deny-write” to top level node, 
> “nacm:default-deny-write” applicability will spread to the lower level 
> nodes as well.
>
> By reading RFC6536 section 3.2.3 example, I didn’t get the same 
> understanding. Please correct me if I am wrong.
>

I got a reply from Martin, he says you are right (although he agreed 
RFC6536 is unclear).  So, it's only needed on the container.

Thanks,

     David

-- 
David Ball
<daviball@cisco.com>