Re: [dhcwg] Fwd: [Roll] Request for Review: Fwd: I-D Action: draft-doi-roll-mpl-parameter-configuration-02.txt

"Bernie Volz (volz)" <volz@cisco.com> Mon, 12 August 2013 21:29 UTC

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From: "Bernie Volz (volz)" <volz@cisco.com>
To: Yusuke DOI <yusuke.doi@toshiba.co.jp>, "dhcwg@ietf.org" <dhcwg@ietf.org>
Thread-Topic: [dhcwg] Fwd: [Roll] Request for Review: Fwd: I-D Action: draft-doi-roll-mpl-parameter-configuration-02.txt
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Subject: Re: [dhcwg] Fwd: [Roll] Request for Review: Fwd: I-D Action: draft-doi-roll-mpl-parameter-configuration-02.txt
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<WG Chair Hat OFF>

A few comments regarding this draft:

1. Please make sure to look at http://tools.ietf.org/html/draft-ietf-dhc-op=
tion-guidelines. This document is being adopted by the DHC WG and is critic=
al to follow.

2. While it may cost a few octets, I would strongly encourage you to use se=
parate fields for some items (such as C_K and DM_K). This will cost you one=
 octet but keeps the encoding simpler (flags, C_K, and DM_K octets).

3. The new data type (Unsigned Short Floating Point) will likely delay impl=
ementation in some servers (or require 'manual' encoding). If it is critica=
l that this be used (instead of a more traditional data type), so be it.

4. As stated in draft-ietf-dhc-option-guidelines, this document does specif=
y that multiple instances are allowed (see draft-ietf-dhc-option-guidelines=
-13, section 16). However, it makes no statement as to whether the order is=
 significant and that is covered in draft-ietf-dhc-option-guidelines-13, se=
ction 17 (there should be no IMPLICIT or EXPLICIT ordering with multiple op=
tions).

5. You might document the possible length of the options as there seems to =
be only two choices - X and X+16 (if C=3D1). Is C even necessary? Could the=
 option length (i.e., if MPL domain address is present) be used to determin=
e this? (It avoids having to test the length if C=3D1 to make sure it is co=
rrect.)

6. I can say nothing about the utility of this option and whether the data =
contained therein is appropriate as I am not an MPL expert - we would defer=
 to the ROLL WG in these regards.

</WG Chair Hat OFF>

- Bernie

-----Original Message-----
From: dhcwg-bounces@ietf.org [mailto:dhcwg-bounces@ietf.org] On Behalf Of Y=
usuke DOI
Sent: Thursday, August 01, 2013 4:12 AM
To: dhcwg@ietf.org
Subject: [dhcwg] Fwd: [Roll] Request for Review: Fwd: I-D Action: draft-doi=
-roll-mpl-parameter-configuration-02.txt

Dear dhc folks,

Just FYI, here is a proposed individual I-D proposed to roll WG. I believe =
it does not make any harm to current DHCP infrastructure because this is an=
other stateless option to distribute data among nodes. It's still in early =
stage and will be updated to satisfy the option guideline document.

Any feedbacks are welcome.

Regards,

Yusuke

-------- Original Message --------
Subject: [Roll] Request for Review: Fwd: I-D Action:=20
draft-doi-roll-mpl-parameter-configuration-02.txt
Date: Wed, 31 Jul 2013 01:19:08 +0900
From: Yusuke DOI <yusuke.doi@toshiba.co.jp>
Reply-To: Routing Over Low power and Lossy networks <roll@ietf.org>
To: roll@ietf.org

Dear roll folks,

I (and Matt Gillmore) have a proposal to make MPL configuration over DHCP o=
ption. I'm on the IETF meeting so I really appriciate if anyone can take a =
quick review on it and/or have F2F discussion.

We're thinking of thousands of nodes under a LLNs. And we identified config=
uration of MPL parameters is one of missing pieces for manageable large sca=
le LLN.

Regards,

Yusuke


-------- Original Message --------
Subject: I-D Action: draft-doi-roll-mpl-parameter-configuration-02.txt
Date: Mon, 29 Jul 2013 08:25:09 -0700
From: internet-drafts@ietf.org
Reply-To: internet-drafts@ietf.org
To: i-d-announce@ietf.org


A New Internet-Draft is available from the on-line Internet-Drafts director=
ies.


	Title           : MPL Parameter Configuration Option for DHCPv6
	Author(s)       : Yusuke Doi
                           Matthew Gillmore
	Filename        : draft-doi-roll-mpl-parameter-configuration-02.txt
	Pages           : 8
	Date            : 2013-07-29

Abstract:
    This draft is to define a way to configure MPL parameter via DHCPv6
    option.


The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-doi-roll-mpl-parameter-configuration

There's also a htmlized version available at:
http://tools.ietf.org/html/draft-doi-roll-mpl-parameter-configuration-02

A diff from the previous version is available at:
http://www.ietf.org/rfcdiff?url2=3Ddraft-doi-roll-mpl-parameter-configurati=
on-02


Please note that it may take a couple of minutes from the time of submissio=
n until the htmlized version and diff are available at tools.ietf.org.

Internet-Drafts are also available by anonymous FTP at:
ftp://ftp.ietf.org/internet-drafts/

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