The Trickle algorithm allows nodes in a lossy shared medium (e.g.,
low-power and lossy networks) to exchange information in a highly
robust, energy efficient, simple, and scalable manner. Dynamically
adjusting transmission windows allows Trickle to spread new
information on the scale of link-layer transmission times while
sending only a few messages per hour when information does not
change. A simple suppression mechanism and transmission point
selection allow Trickle’s communication rate to scale logarithmically
with density. This document describes the Trickle algorithm and
considerations in its use.