Re: [homenet] Benoit Claise's Discuss on draft-ietf-homenet-dncp-11: (with DISCUSS and COMMENT)
Steven Barth <cyrus@openwrt.org> Wed, 21 October 2015 13:31 UTC
Return-Path: <cyrus@openwrt.org>
X-Original-To: homenet@ietfa.amsl.com
Delivered-To: homenet@ietfa.amsl.com
Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 5AC7F1A8735; Wed, 21 Oct 2015 06:31:05 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -1.549
X-Spam-Level:
X-Spam-Status: No, score=-1.549 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, HELO_EQ_DE=0.35, SPF_FAIL=0.001] autolearn=no
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 h_ykF5j5-uP2; Wed, 21 Oct 2015 06:31:03 -0700 (PDT)
Received: from mail.core-networks.de (mail.core-networks.de [IPv6:2001:1bc0:d::4:9]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 3B3A51A8724; Wed, 21 Oct 2015 06:31:03 -0700 (PDT)
Received: from localhost ([127.0.0.1]) by mail.core-networks.de id 1ZotTm-0003OJ-L5 with ESMTPSA (TLSv1.2:ECDHE-RSA-AES128-GCM-SHA256:128) for ; Wed, 21 Oct 2015 15:30:58 +0200
To: Benoit Claise <bclaise@cisco.com>, The IESG <iesg@ietf.org>
References: <20151020204159.17294.93467.idtracker@ietfa.amsl.com>
From: Steven Barth <cyrus@openwrt.org>
Message-ID: <56279391.5050207@openwrt.org>
Date: Wed, 21 Oct 2015 15:30:57 +0200
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:40.0) Gecko/20100101 Icedove/40.0
MIME-Version: 1.0
In-Reply-To: <20151020204159.17294.93467.idtracker@ietfa.amsl.com>
Content-Type: text/plain; charset="windows-1252"
Content-Transfer-Encoding: 7bit
Archived-At: <http://mailarchive.ietf.org/arch/msg/homenet/CoxvhjA9XEFHk49fbUPm_GiES6w>
Cc: homenet-chairs@ietf.org, draft-ietf-homenet-dncp@ietf.org, homenet@ietf.org, mark@townsley.net, victor@jvknet.com
Subject: Re: [homenet] Benoit Claise's Discuss on draft-ietf-homenet-dncp-11: (with DISCUSS and COMMENT)
X-BeenThere: homenet@ietf.org
X-Mailman-Version: 2.1.15
Precedence: list
List-Id: IETF Homenet WG mailing list <homenet.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/homenet>, <mailto:homenet-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/homenet/>
List-Post: <mailto:homenet@ietf.org>
List-Help: <mailto:homenet-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/homenet>, <mailto:homenet-request@ietf.org?subject=subscribe>
X-List-Received-Date: Wed, 21 Oct 2015 13:31:05 -0000
Hello Benoit, thanks for your feedback. I've staged the following additions for -12 in our Git: https://github.com/fingon/ietf-drafts/commit/859a37237 Would that address your DISCUSS? If not, please let us know what you would like us to add or change in addition. Thanks, Steven On 20.10.2015 22:41, Benoit Claise wrote: > ---------------------------------------------------------------------- > DISCUSS: > ---------------------------------------------------------------------- > > Other ADs focused on the protocol specific points. So let me focus on > something else. > The applicability section doesn't answer my questions: when to (re-)use > this protocol? > Note that the write-up mentioned ANIMA. > > I see the protocol description: > > DNCP is designed to provide a way for each participating node to > publish a set of TLV (Type-Length-Value) tuples, and to provide a > shared and common view about the data published by every currently or > recently bidirectionally reachable DNCP node in a network. > > However, this applicability section doesn't tell me when to re-use DNCP > (or define a profile for it). > I see an effort to address my discuss in the appendix B of draft version > 11. Thanks > > What would solve my DISCUSS is an applicability section that would > contain > a high level set of criteria that would briefly explain whether DNCP is > applicable for > the specifications I have in mind. The first 2 paragraphs of section 1.1 > is a good start, > then it goes considerations about Trickle, the interval A_NC_I, etc ... > and you lose the > readers. > > Something like: > > DNCP is designed to provide a way for each participating node to > publish a set of TLV (Type-Length-Value) tuples, and to provide a > shared and common view about the data published by every currently or > recently bidirectionally reachable DNCP node in a network. > > [As an example of what I'm expected, see below. > Btw, I have no idea if this text is correct or complete, but that's > besides the point] > > DNCP works with profiles in which you have the flexibility to > specify: > - the appropriate transport: the available options are TCP and UDP > (see > section appendix B for the tradeoffs) > - the transport security: TLS or DTLS, see appendix B). > - If service discovery is required, an optional multicast service can > be defined. > - TO BE COMPLETED > > DNCP is applicable to LAN, WAN, or even the Internet. > DNCP can exchange enterprise specific TLV or an IANA registry could be > specified > DNCP specific extensions are possible. > TO BE COMPLETED > > DNCP limitations: > - Data published limited to 64kB > - Doesn't work for SCTP, DCCP > - All devices in the network must be DNCP node? > - TO BE COMPLETED > > To summarize, I need the 2 min elevator pitch of when (not) to use DNCP. > > > ---------------------------------------------------------------------- > COMMENT: > ---------------------------------------------------------------------- > > - I would agree with Alvaro, when he wrote: "In general, I found the text > not straight forward or easy to understand." Potentially due to the > structure. > > - I hope that a document about manageability considerations (see > https://tools.ietf.org/html/rfc5706#appendix-A) will follow. > > > _______________________________________________ > homenet mailing list > homenet@ietf.org > https://www.ietf.org/mailman/listinfo/homenet >
- [homenet] Benoit Claise's Discuss on draft-ietf-h… Benoit Claise
- Re: [homenet] Benoit Claise's Discuss on draft-ie… Steven Barth
- Re: [homenet] Benoit Claise's Discuss on draft-ie… Benoit Claise
- Re: [homenet] Benoit Claise's Discuss on draft-ie… Steven Barth
- Re: [homenet] Benoit Claise's Discuss on draft-ie… Juliusz Chroboczek