{
  "draft": "draft-cardenas-dff-14",
  "doc_id": "RFC6971",
  "title": "Depth-First Forwarding (DFF) in Unreliable Networks",
  "authors": [
    "U. Herberg, Ed.",
    "A. Cardenas",
    "T. Iwao",
    "M. Dow",
    "S. Cespedes"
  ],
  "format": [
    "TEXT",
    "HTML"
  ],
  "page_count": "41",
  "pub_status": "EXPERIMENTAL",
  "status": "EXPERIMENTAL",
  "source": "IETF - NON WORKING GROUP",
  "abstract": "This document specifies the Depth-First Forwarding (DFF) protocol for IPv6 networks, a data-forwarding mechanism that can increase reliability of data delivery in networks with dynamic topology and/or lossy links.  The protocol operates entirely on the forwarding plane but may interact with the routing plane.  DFF forwards data packets using a mechanism similar to a \"depth-first search\" for the destination of a packet.  The routing plane may be informed of failures to deliver a packet or loops.  This document specifies the DFF mechanism both for IPv6 networks (as specified in RFC 2460) and for \"mesh-under\" Low-Power Wireless Personal Area Networks (LoWPANs), as specified in RFC 4944.  The design of DFF assumes that the underlying link layer provides means to detect if a packet has been successfully delivered to the Next Hop or not.  It is applicable for networks with little traffic and is used for unicast transmissions only.",
  "pub_date": "June 2013",
  "keywords": [
    "DFF",
    "Depth first forwarding",
    "IPv6",
    "Forwarding plane",
    "Lossy networks",
    "Reliability"
  ],
  "obsoletes": [],
  "obsoleted_by": [],
  "updates": [],
  "updated_by": [],
  "see_also": [],
  "doi": "10.17487/RFC6971",
  "errata_url": "https://www.rfc-editor.org/errata/rfc6971"
}