diff --git a/doc/reference/networking/trickle.rst b/doc/reference/networking/trickle.rst
index 4559a6b9264..c1d6a3f7777 100644
--- a/doc/reference/networking/trickle.rst
+++ b/doc/reference/networking/trickle.rst
@@ -1,11 +1,18 @@
 .. _trickle_interface:
 
-Trickle Timer Support
+Trickle Timer Library
 #####################
 
 Overview
 ********
 
+The Trickle timer library implements
+`IETF RFC6206 (Trickle Algorithm) <https://tools.ietf.org/html/rfc6206>`_.
+
+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.
+
 
 API Reference
 *************