http://www.rfc-editor.org/rfc/rfc6412.txt
RFC 6412: Terminology for Benchmarking Link-State IGP Data-Plane Route Convergence, S. Poretsky, B. Imhoff, K. Michielsen2011-11-01T23:00:00-00:00This document describes the terminology for benchmarking link-state Interior Gateway Protocol (IGP) route convergence. The terminology is to be used for benchmarking IGP convergence time through externally observable (black-box) data-plane measurements. The terminology can be applied to any link-state IGP, such as IS-IS and OSPF. This document is not an Internet Standards Track specification; it is published for informational purposes.