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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Date: Mon, 12 Aug 2013 21:29:00 +0000
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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-option-guidelines. This document is being adopted by the DHC WG and is critical to follow.

2. While it may cost a few octets, I would strongly encourage you to use separate 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 implementation in some servers (or require 'manual' encoding). If it is critical 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 specify 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, section 17 (there should be no IMPLICIT or EXPLICIT ordering with multiple options).

5. You might document the possible length of the options as there seems to be only two choices - X and X+16 (if C=1). Is C even necessary? Could the option length (i.e., if MPL domain address is present) be used to determine this? (It avoids having to test the length if C=1 to make sure it is correct.)

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 Yusuke 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 another 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: 
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 option. 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 configuration of MPL parameters is one of missing pieces for manageable large scale 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 directories.


	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=draft-doi-roll-mpl-parameter-configuration-02


Please note that it may take a couple of minutes from the time of submission 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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