A new Request for Comments is now available in online RFC libraries. RFC 6693 Title: Probabilistic Routing Protocol for Intermittently Connected Networks Author: A. Lindgren, A. Doria, E. Davies, S. Grasic Status: Experimental Stream: IRTF Date: August 2012 Mailbox: andersl@sics.se, avri@acm.org, elwynd@folly.org.uk, samo.grasic@ltu.se Pages: 113 Characters: 280908 Updates/Obsoletes/SeeAlso: None I-D Tag: draft-irtf-dtnrg-prophet-10.txt URL: http://www.rfc-editor.org/rfc/rfc6693.txt This document is a product of the Delay Tolerant Networking Research Group and has been reviewed by that group. No objections to its publication as an RFC were raised. 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 the 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. This document defines an Experimental Protocol for the Internet community. This document is a product of the Delay-Tolerant Networking Research Group of the IRTF. EXPERIMENTAL: This memo defines an Experimental Protocol for the Internet community. It does not specify an Internet standard of any kind. Discussion and suggestions for improvement are requested. Distribution of this memo is unlimited. This announcement is sent to the IETF-Announce, rfc-dist and IRTF-Announce lists.To subscribe or unsubscribe, see http://www.ietf.org/mailman/listinfo/ietf-announce http://mailman.rfc-editor.org/mailman/listinfo/rfc-dist http://www.irtf.org/mailman/listinfo/irtf-announce For searching the RFC series, see http://www.rfc-editor.org/rfcsearch.html. For downloading RFCs, see http://www.rfc-editor.org/rfc.html. Requests for special distribution should be addressed to either the author of the RFC in question, or to rfc-editor@rfc-editor.org. Unless specifically noted otherwise on the RFC itself, all RFCs are for unlimited distribution. The RFC Editor Team Association Management Solutions, LLC