Re: [v6ops] draft-ietf-v6ops-rfc3316bis WGLC

GangChen <phdgang@gmail.com> Thu, 23 May 2013 06:29 UTC

Return-Path: <phdgang@gmail.com>
X-Original-To: v6ops@ietfa.amsl.com
Delivered-To: v6ops@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 673EE11E8191 for <v6ops@ietfa.amsl.com>; Wed, 22 May 2013 23:29:30 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -2
X-Spam-Level:
X-Spam-Status: No, score=-2 tagged_above=-999 required=5 tests=[BAYES_00=-2.599, J_CHICKENPOX_13=0.6, NO_RELAYS=-0.001]
Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id XcI41IT3GNB4 for <v6ops@ietfa.amsl.com>; Wed, 22 May 2013 23:29:29 -0700 (PDT)
Received: from mail-qa0-x231.google.com (mail-qa0-x231.google.com [IPv6:2607:f8b0:400d:c00::231]) by ietfa.amsl.com (Postfix) with ESMTP id AF9A911E8193 for <v6ops@ietf.org>; Wed, 22 May 2013 23:29:29 -0700 (PDT)
Received: by mail-qa0-f49.google.com with SMTP id j11so1446833qag.8 for <v6ops@ietf.org>; Wed, 22 May 2013 23:29:29 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type; bh=bTC9QxS98C0cqc+Xw4dYXuOnLOjSORbj+QpsBhAF7FE=; b=y7fTzd/DCp2CRDXwzJl4dvBPy5Y/HaYgwbLEJ19VI7XUTndpdb0U3AEz5h2o7qJ/j5 OIDWWtvp/WNpdw1IdZAtoQSMmvZjU6l0fEApUqyKwk6/R87PtNfE3nQPGzxs6Bk1eECG 3stsJ5hpGtRTLSW9DBFGFHyp4pRmkMDjZXYZcOEb/0iQ4QEd4ckPcXUYBuEHqOwL28p8 KUXlwVIQi+Rt5Qq9XJHcW/yfjw/Y8fd4QgNbaFkOEL1XI82+l7T1el45sI9wDbFhZtoM 1X+ipzk0kIele5ZcsH9xsiwPiZ2sOg19uNfQi6jL8HoSD3umkUUMZfjWGlUvCCUomER7 uJ7g==
MIME-Version: 1.0
X-Received: by 10.229.165.144 with SMTP id i16mr3795526qcy.156.1369290569016; Wed, 22 May 2013 23:29:29 -0700 (PDT)
Received: by 10.49.94.39 with HTTP; Wed, 22 May 2013 23:29:28 -0700 (PDT)
In-Reply-To: <8C48B86A895913448548E6D15DA7553B8EE5DB@xmb-rcd-x09.cisco.com>
References: <8C48B86A895913448548E6D15DA7553B8EE5DB@xmb-rcd-x09.cisco.com>
Date: Thu, 23 May 2013 14:29:28 +0800
Message-ID: <CAM+vMESxFfOb177u2nWN6v0xRO+47LGeQKv-hNL3txTdWpTvJQ@mail.gmail.com>
From: GangChen <phdgang@gmail.com>
To: "Fred Baker (fred)" <fred@cisco.com>, "v6ops@ietf.org" <v6ops@ietf.org>
Content-Type: text/plain; charset="ISO-8859-1"
Subject: Re: [v6ops] draft-ietf-v6ops-rfc3316bis WGLC
X-BeenThere: v6ops@ietf.org
X-Mailman-Version: 2.1.12
Precedence: list
List-Id: v6ops discussion list <v6ops.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/v6ops>, <mailto:v6ops-request@ietf.org?subject=unsubscribe>
List-Archive: <http://www.ietf.org/mail-archive/web/v6ops>
List-Post: <mailto:v6ops@ietf.org>
List-Help: <mailto:v6ops-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/v6ops>, <mailto:v6ops-request@ietf.org?subject=subscribe>
X-List-Received-Date: Thu, 23 May 2013 06:29:30 -0000

wg,

The draft contains useful discussions to help shaping IPv6 profile on
mobile phone. I support WGLC. The below comments are only for
discussion/consult/clarification.

1) section 2.2 Neighbor Discovery

Once we discuss NS/NA, I'm struggling with the usage of those two
messages. The draft has very good description about notes on
point-to-point interface. The texts teach me that neighbor discovery
and NUD may be unnecessary, beacause the mobile phone doesn't rely on
NS/NA to discover neighbor and NUD is desirable to be achieved through
uppper layer guarantee. In some degree, audience may have impressions
mobile phones can eliminate NS/NA to reduce additional signalling. I'm
not sure if we could give those recommendations. Otherwise, it maybe
helpful if the draft can clarify the usages of NS/NA to a mobile
phone.

In regard to NUD using upper layer protocol, I have observed some apps
normally do keepalive/beacon message to fresh the link. Could those
messages be a tool to maintain NUD?

2) I guess both section 2.3 and 2.4 cover SLACC. Reading the contents,
I feel section 2.4 seems a sub-section of 2.3. It may be good to
assign a proper section number.

In section 2.4, there is texts "as each delegated prefix is unique".
May I suggest to reword "delegated" to
"advertised/configured/assigned" to avoid the ambiguity with DHCP-PD

3) section 2.5
It described the case of split mobile station. I guess it may help if
the draft adds a example for MT. USB dongle can be a MT.You may add
"(MT, e.g., a USB dongle)", like you did for TE. That also reminds me
"a mobile phone handset" used in the section of Abbreviations. Should
it be proper to use a USB dongle for the example. A mobile phone
handset seems like a mobile station, which is comprised of MT and TE.

4)section 2.7

If i remember coorectly, 3GPP label Privacy Extensions as the level of
"MAY". This section use "should" and "may" in the same paragraph. I
guess we may could align the statement(even that not have normative
meaning)

5)section 2.10

One typo maybe there. "me" should be corrected.

These options me be useful for cellular
                      ^^
6)section 2.11

DNS server address can also be provisioned through PCO option. Should
it be mentioned in this section?

Best Regards

Gang


2013/5/20, Fred Baker (fred) <fred@cisco.com>:
> The working group last call for this draft-ietf-v6ops-rfc3316bis announced
> last week continues for another week. Please feel free to comment on it.
>
>
> _______________________________________________
> v6ops mailing list
> v6ops@ietf.org
> https://www.ietf.org/mailman/listinfo/v6ops
>