http://www.rfc-editor.org/rfc/rfc7108.txt
RFC 7108: A Summary of Various Mechanisms Deployed at L-Root for the Identification of Anycast Nodes, J. Abley, T. Manderson2014-01-01T23:00:00-00:00This document describes all facilities deployed at L-Root to facilitate mapping of its infrastructure and serves as documentation for L-Root as a measurable service.