The IESG has completed a review of <draft-irtf-dtnrg-prophet> consistent with RFC5742. This review is applied to all non-IETF streams. The IESG has concluded that there is no conflict between this document and IETF work. The IESG has no problem with the publication of 'Probabilistic Routing Protocol for Intermittently Connected Networks' <draft-irtf-dtnrg-prophet-09.txt> as an Experimental RFC. The IESG would also like the IRSG to review the comments in the datatracker (http://datatracker.ietf.org/doc/draft-irtf-dtnrg-prophet/) related to this document and determine whether or not they merit incorporation into the document. Comments may exist in both the ballot and the history log. A URL of this Internet Draft is: http://datatracker.ietf.org/doc/draft-irtf-dtnrg-prophet/ The process for such documents is described at http://www.rfc-editor.org/indsubs.html Thank you, The IESG Secretary Technical Summary This document defines PRoPHET, a Probabilistic Routing Protocol using History of Encounters and Transitivity. PRoPHET is a variant of the epidemic routing protocol for intermittently connected networks that operates by pruning the epidemic distribution tree to minimize resource usage while still attempting to achieve the best case routing capabilities of epidemic routing. It is intended for use in sparse mesh networks where there is no guarantee that a fully connected path between source and destination exists at any time, rendering traditional routing protocols unable to deliver messages between hosts. These networks are examples of networks where there is a disparity between the latency requirements of applications and the capabilities of the underlying network (networks often referred to as Delay- and Disruption-Tolerant). The document presents an architectural overview followed by the protocol specification. Working Group Summary This document is the product of the IRTF. This document is a product of the Delay Tolerant Networking Research Group within the IRTF. It has been reviewed by that group and no objection to its publication as an RFC was raised. Document Quality It is believed that there have been implementations and experimentation as described in the document. Personnel Stephen Farrell (stephen.farrell@cs.tcd.ie) is the Document Shepherd. Adrian Farrel (adrian@olddog.co.uk) carried out the RFC5742 review. RFC Editor Note The IESG has review this document according to RFC 5742 and has concluded that there is no conflict between this document and IETF work. The IESG makes no request for the inclusion of an IESG note in this document.