The IESG has received a request from the Light-Weight Implementation Guidance WG (lwig) to consider the following document: - 'Energy-Efficient Features of Internet of Things Protocols' <draft-ietf-lwig-energy-efficient-08.txt> as Informational RFC The IESG plans to make a decision in the next few weeks, and solicits final comments on this action. Please send substantive comments to the ietf@ietf.org mailing lists by 2018-01-16. Exceptionally, comments may be sent to iesg@ietf.org instead. In either case, please retain the beginning of the Subject line to allow automated sorting. Abstract This document describes the challenges for energy-efficient protocol operation on constrained devices and the current practices used to overcome those challenges. It summarizes the main link-layer techniques used for energy-efficient networking, and it highlights the impact of such techniques on the upper layer protocols so that they can together achieve an energy efficient behavior. The document also provides an overview of energy-efficient mechanisms available at each layer of the IETF protocol suite specified for constrained node networks. The file can be obtained via https://datatracker.ietf.org/doc/draft-ietf-lwig-energy-efficient/ IESG discussion can be tracked via https://datatracker.ietf.org/doc/draft-ietf-lwig-energy-efficient/ballot/ No IPR declarations have been submitted directly on this I-D.