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Routing Over Low power and Lossy networks
charter-ietf-roll-04-00

The information below is for an older proposed charter
Document Proposed charter Routing Over Low power and Lossy networks WG (roll) Snapshot
Title Routing Over Low power and Lossy networks
Last updated 2016-11-30
State Draft Charter Rechartering
WG State Active
IESG Responsible AD John Scudder
Charter edit AD Alvaro Retana
Send notices to (None)

charter-ietf-roll-04-00

Charter for ROLL Working Group

Low power and Lossy Networks (LLNs ) 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.

RFC7102 discusses ROLL specific aspects of LLNs, and RFC7228 provides additional
terminology for constrained devices.

RFC 5548, 5673, 5826, and 5876 describe the requirements for LLNs from several application
perspectives.
The Working Group has focused on routing solutions for the areas: connected home, building,
and urban sensor networks. It has developed a Framework that takes 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 continues to focus on routing issues for LLN and to maintain, improve and
streamline the protocols developed by the working group, including RPL and MPL. We focus
only in IPV6 work.

ROLL will coordinate closely with the working groups in other areas that focus on constrained
networks and/or constrained nodes, such as 6lo (Int) and lwig (Int) and CoRE (App). The
working groups PiM (rtg), BIER (rtg) and MANET (rtg) will be consulted when ROLL work can
profit from their results. The Working group will align with the 6man (Int) WG when needed.

Work Items are:

  • Guidance in using RFC6553, RFC6554, and IPv6-in-IPv6 encapsulation.

  • 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.

  • Multicast enhancements algorithms.

Milestones

Date Milestone
September 2018 Recharter WG or close
July 2018 Initial submission of a solution for draft-jadhav-roll-no-path-dao-ps to IESG
November 2017 Initial submission of draft-satish-roll-aodv-rpl to IESG
November 2017 Initial submission of draft-gundogan-roll-dis-modifications to IESG
July 2017 Initial submission of draft-bergmann-bier-ccast to IESG
July 2017 Initial submission of draft-vanderstok-roll-mpl-forw-select to IESG
March 2017 Initial submission of draft-vanderstok-roll-mpl-yang to IESG
March 2017 Initial submission of draft-thubert-roll-dao-projection to IESG
November 2016 Initial Submission of the draft about when to use RFC6553, RFC6554, and IPv6-in-IPv6 encapsulation Draft-ietf-roll-useofrplinfo to the IESG.
November 2016 IESG Evaluation