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.