The IESG has received a request from the Diameter Maintenance and Extensions WG (dime) to consider the following document: - 'Diameter Applications Design Guidelines' <draft-ietf-dime-app-design-guide-24.txt> as Best Current Practice 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 2014-06-20. 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 The Diameter base protocol provides facilities for protocol extensibility enabling to define new Diameter applications or modify existing applications. This document is a companion document to the Diameter Base protocol that further explains and clarifies the rules to extend Diameter. Futhermore, this document provides guidelines to Diameter application designers reusing/defining Diameter applications or creating generic Diameter extensions. The file can be obtained via http://datatracker.ietf.org/doc/draft-ietf-dime-app-design-guide/ IESG discussion can be tracked via http://datatracker.ietf.org/doc/draft-ietf-dime-app-design-guide/ballot/ No IPR declarations have been submitted directly on this I-D.