ROLL focuses on routing issues for Low Power and Lossy Networks (LLN) and maintaining the protocols already developed, including RPL and MPL. The focus is on IPv6 work only.
The WG accepted a proposal that describes RPL protocol design issues, consequences and implementation choices, with the goal of producing new documents that solve those problems. One document from the result is draft-rahul-roll-mop-ext.
The WG finalized the work that solves the issues of the mechanisms used for a route invalidation system. The WG is in the final stage to approve a proposal that uses a reactive P2P route discovery mechanism for both hop-by-hop routing and source routing: Ad Hoc On-demand Distance Vector Routing (AODV) based RPL protocol, when some of the links between source and target node are asymmetric.
Additionally, in the WG a new proposal is presented to select the appropriate parents to achieve ultra-low latency and jitter. Another proposal describes an objective function based on a metric that represents the amount of remaining traffic handling capacity that the node has. In The WG also, we have a proposal that describes the unicast routing service in a RPL domain to 6LoWPAN ND nodes that are not RPL protocol aware.
RPL performance is presented focusing in asymmetric links, such as deaf nodes.
[Last Updated: March 22, 2018.]