Re: [Roll] Request for Comments for ROLL Charter
Ines Robles <mariainesrobles@googlemail.com> Mon, 04 July 2016 13:26 UTC
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From: Ines Robles <mariainesrobles@googlemail.com>
Date: Mon, 04 Jul 2016 16:26:20 +0300
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To: roll <roll@ietf.org>
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Cc: peter van der Stok <stokcons@xs4all.nl>, Michael Richardson <mcr+ietf@sandelman.ca>
Subject: Re: [Roll] Request for Comments for ROLL Charter
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Dear all, Thank you very much for your comments, we send a new version of the charter. Last changes: a- We would keep the old paragraphs, might them be helpful for newcomers. b- Remove "AD approval is required for each new work item that is proposed." since it is part of the process anyway. c - Two work items were modified: c.1- Old: " Additional protocol to reduce paths for RPL in non-storing mode" New: "Additional protocol elements to reduce packet size and the amount of required routing states" c.2 - Old: " Methods to improve or correct the current RPL behaviour such as DIS modifications and problems associated with DAO messaging in RPL" New: "" Methods to improve or correct the current RPL behaviour and the other protocols defined by the working group. Please comments, Thank you, Peter and Ines ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// CHARTER PROPOSAL: Charter for Working Group Low power and Lossy Networks (LLNs ) [RFC7102] [RFC7228] are made up of many embedded devices with limited power, memory, and processing resources. They are interconnected by a variety of links, such as IEEE 802.15.4, Bluetooth, Low Power WiFi, wired or other low power PLC (Powerline Communication) links. LLNs are transitioning to an end-to-end IP-based solution to avoid the problem of non-interoperable networks interconnected by protocol translation gateways and proxies. Generally speaking, LLNs are characterized as follows, but not limited to: LLNs operate with a hard, very small bound on state. In most cases, LLN optimize for saving energy by using small packet headers and reduce amount of control packets. Typical traffic patterns are not simply unicast flows (e.g. in some cases most if not all traffic can be point to multipoint). In most cases, LLNs will be employed over link layers with restricted frame-sizes and low bit rates, thus a routing protocol for LLNs should be specifically adapted for such link layers. LLN routing protocols have to be very careful when trading off efficiency for generality; since LLN nodes do not have resources to waste. These specific properties cause LLNs to have specific routing requirements. Existing routing protocols such as OSPF, IS-IS, AODV, and OLSR have been evaluated by the working group (draft-levis-roll-overview-protocols-00) and have in their current form been found to not satisfy all of these specific routing requirements “Routing Requirements for Urban Low-Power and Lossy Networks” RFC 5548, “Industrial Routing Requirements in Low-Power and Lossy Networks” RFC 5673, “Home Automation Routing Requirements in Low-Power and Lossy Networks” RFC 5826, Building Automation Routing Requirements in Low-Power and Lossy Networks RFC 5867. The Working Group is focused on routing issues for LLN and maintaining the protocols developed by the working group. There is a wide scope of application areas for LLNs, including industrial monitoring, building automation (HVAC, lighting, access control, fire), connected homes, health care, environmental monitoring, urban sensor networks (e.g. Smart Grid), asset tracking. The Working Group focuses on routing solutions for a subset of these: connected home, building and urban sensor networks for which routing requirements have been specified. These application-specific routing requirement documents were used for protocol design. The Working Group focuses on IPv6 routing architectural framework for these application scenarios. The Framework will take into consideration various aspects including high reliability in the presence of time varying loss characteristics and connectivity while permitting low-power operation with very modest memory and CPU pressure in networks potentially comprising a very large number (several thousands) of nodes. The Working Group will document how data packets are routed and encapsulated when they cross the LLN, and when they enter and exit the LLN: the appropriate use of RPI (RFC6553), RH3 (RFC6554) and IPv6-in-IPv6 encapsulation including how routing loops are detected. In consultation with the 6lo WG, the Working Group will design a method to compress these routing headers into a single block. The WGLC on this work will be shared with 6lo. The Working group will align with the 6man WG when needed. ROLL is responsible for maintenance of the protocols that is has developed, including RPL and MPL. Work Items are: - Guidance in using RFC6553, RFC6554, and IPv6-in-IPv6 encapsulation. - Compression of RFC6553, RFC6554, and IP headers in the 6LoWPAN adaptation layer context - Additional protocol elements to reduce packet size and the amount of required routing states - Automatic selection of MPL forwarders to reduce message replication - Data models for RPL and MPL management - Alternative Multicast algorithm based on Bier forwarding. - Methods to improve or correct the current RPL behaviour and the other protocols defined by the working group. Milestones DATE Milestone September 2017 Recharter WG or close March 2017 Initial submission of draft about YANG RPL model to IESG January 2017 Initial submission of draft about MPL selection to IESG November 2016 Initial submission of draft about Bier Multicast to IESG October 2016 Submit draft about YANG MPL model to IESG August 2016 Initial Submission of the draft about when to use RFC6553, RFC6554, and IPv6-in-IPv6 encapsulation Draft-ietf-roll-useofrplinfo to the IESG. May 2016 Initial submission of the draft about how to compress RFC6553, RFC6554, and IP headers in the 6LoWPAN adaptation layer context. to the IESG. draft-ietf-roll-routing-dispatch November 2016 Initial Submission of the No-Path DAO Problem Statement to the IESG 2016-06-30 12:11 GMT+03:00 peter van der Stok <stokcons@xs4all.nl>: > Hi Cenk, > > thanks for your suggestions. > I cannot refrain from reacting, and see below. > > Cenk Gündogan schreef op 2016-06-29 17:04: > >> Hello Peter, >> >> I believe Pascal proposed to keep it in a more generic form >> "improvements to the RPL routing protocol". >> >> Otherwise, read on for my comments regarding the former wording: >> I propose we drop any form of uncertainty and change the "and/or" to >> "and". >> > > much better. > > Secondly, "packet size" sounds a little bit too generic, how about >> "control packet sizes", >> or "RPL related packet sizes"? >> > > I was also thinking of the headers, and IP in IP headers; and whatever may > come; so I prefer packet size (NOT to be confused with payload size) > It looks general and still concrete enough. > > Thirdly, would "reduce ... the amount of required routing states" >> be a better choice? It hints to a reduction of memory while still >> providing an >> operational (converged) DODAG. >> The proposed form "reduce ... the amount of accumulated routing >> states" could also >> refer to drop states and decrease the quality of the routing protocol >> while doing so. >> > > required it is > > >> Cenk >> >> > Other suggestions or improvements? > > If not we send new text on monday/tuesday. > > Peter > > On 06/29/2016 09:05 AM, peter van der Stok wrote: >> >>> Hi All, >>> >>> If I understand correctly the discussion, the proposal is to replace >>> >>> "Additional protocol to reduce paths for RPL in non-storing mode." >>> >>> by >>> >>> "Additional protocol elements to reduce packet size and/or the amount of >>> accumulated routing states." >>> >>> > _______________________________________________ > Roll mailing list > Roll@ietf.org > https://www.ietf.org/mailman/listinfo/roll >
- Re: [Roll] Request for Comments for ROLL Charter Ines Robles
- Re: [Roll] Request for Comments for ROLL Charter peter van der Stok
- Re: [Roll] Request for Comments for ROLL Charter Michael Richardson
- Re: [Roll] Request for Comments for ROLL Charter peter van der Stok
- Re: [Roll] Request for Comments for ROLL Charter Michael Richardson
- Re: [Roll] Request for Comments for ROLL Charter Pascal Thubert (pthubert)
- Re: [Roll] Request for Comments for ROLL Charter Ines Robles
- Re: [Roll] Request for Comments for ROLL Charter peter van der Stok
- Re: [Roll] Request for Comments for ROLL Charter Cenk Gündogan
- Re: [Roll] Request for Comments for ROLL Charter Prof. Diego Dujovne
- Re: [Roll] Request for Comments for ROLL Charter Pascal Thubert (pthubert)
- Re: [Roll] Request for Comments for ROLL Charter Turner, Randy
- Re: [Roll] Request for Comments for ROLL Charter Cenk Gündogan
- Re: [Roll] Request for Comments for ROLL Charter Pascal Thubert (pthubert)
- Re: [Roll] Request for Comments for ROLL Charter Pascal Thubert (pthubert)
- Re: [Roll] Request for Comments for ROLL Charter Michael Richardson
- Re: [Roll] Request for Comments for ROLL Charter Pascal Thubert (pthubert)
- Re: [Roll] Request for Comments for ROLL Charter Pascal Thubert (pthubert)
- Re: [Roll] Request for Comments for ROLL Charter Ines Robles
- Re: [Roll] Request for Comments for ROLL Charter Rahul Arvind Jadhav (Rahul Arvind Jadhav, 2012 Labs)
- Re: [Roll] Request for Comments for ROLL Charter Cenk Gündogan
- [Roll] Request for Comments for ROLL Charter Ines Robles
- Re: [Roll] Request for Comments for ROLL Charter Turner, Randy
- Re: [Roll] Request for Comments for ROLL Charter Turner, Randy
- Re: [Roll] Request for Comments for ROLL Charter Prof. Diego Dujovne
- Re: [Roll] Request for Comments for ROLL Charter peter van der Stok
- Re: [Roll] Request for Comments for ROLL Charter peter van der Stok