Routing Over Low power and Lossy networks
charter-ietf-roll-05-03

The information below is for a proposed recharter. The current approved charter is version 05
Document Proposed charter Routing Over Low power and Lossy networks WG (roll)
Title Routing Over Low power and Lossy networks
Last updated 2024-11-21
State Start Chartering/Rechartering (Internal Steering Group/IAB Review) Rechartering
WG State Active
IESG Responsible AD John Scudder
Charter edit AD John Scudder
Telechat date (None)
Has enough positions to pass.
Send notices to (None)

charter-ietf-roll-05-03

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 Wi-Fi, 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.

RFC 7102 discusses ROLL-specific aspects of LLNs, and RFC 7228 provides
additional terminology for constrained devices. RFC 5548, RFC 5673, RFC
5826, and RFC 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 already developed,
including RPL (RFC 6550) and MPL (RFC 7731). The focus is on IPv6 work
only. The Working Group will pay particular attention to routing
security and manageability (e.g., self-configuration) issues. The
working group will consider the transport characteristics that routing
protocol messages will experience.

ROLL will coordinate closely with the working groups in other areas that
focus on constrained networks and/or constrained nodes, such as 6lo and
CoRE. Other working groups such as pim, bier, and manet will be
consulted as needed. The Working group will align with the 6man WG when
needed.

Work Items are:

  • Protocol elements to enhance parent node selection and improve route
    discovery efficiency

  • Network resilience and fault management in RPL-based networks

  • Secure network enrollment and access control mechanisms for RPL
    networks

  • Data models for RPL and MPL management

  • Additional protocol elements to optimize operational efficiency

Proposed milestones

Milestones

Date Milestone Associated documents
Dec 2025 Recharter WG or close
Nov 2025 Common Ancestor Objective Function and Parent Set DAG Metric Container Extension to the IESG (charter: "Protocol elements to enhance...") draft-ietf-roll-nsa-extension
Nov 2025 Initial submission of a proposal to augment DIS flags and options to the IESG (charter: "Protocol elements to enhance...") draft-ietf-roll-dis-modifications
Oct 2025 Initial submission of Capabilities for RPL to the IESG (charter: "Additional Protocol elements...") draft-ietf-roll-capabilities
Jun 2025 Initial submission of Mode of Operation extension for RPL to the IESG (charter: "Additional Protocol elements...") draft-ietf-roll-mopex
Jan 2025 Initial submission of Controlling Secure Network Enrollment in RPL networks draft to the IESG (charter: "Secure network enrollment...") draft-ietf-roll-enrollment-priority
Oct 2024 Submit Fast border router crash detection in RPL to the IESG (charter: "Network resilience and fault management...") draft-ietf-roll-rnfd