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REsource LOcation And Discovery (RELOAD) Base Protocol
RFC 6940

Internet Engineering Task Force (IETF)                       C. Jennings
Request for Comments: 6940                                         Cisco
Category: Standards Track                               B. Lowekamp, Ed.
ISSN: 2070-1721                                                    Skype
                                                             E. Rescorla
                                                              RTFM, Inc.
                                                                S. Baset
                                                          H. Schulzrinne
                                                     Columbia University
                                                            January 2014

         REsource LOcation And Discovery (RELOAD) Base Protocol

Abstract

   This specification defines REsource LOcation And Discovery (RELOAD),
   a peer-to-peer (P2P) signaling protocol for use on the Internet.  A
   P2P signaling protocol provides its clients with an abstract storage
   and messaging service between a set of cooperating peers that form
   the overlay network.  RELOAD is designed to support a P2P Session
   Initiation Protocol (P2PSIP) network, but can be utilized by other
   applications with similar requirements by defining new usages that
   specify the Kinds of data that need to be stored for a particular
   application.  RELOAD defines a security model based on a certificate
   enrollment service that provides unique identities.  NAT traversal is
   a fundamental service of the protocol.  RELOAD also allows access
   from "client" nodes that do not need to route traffic or store data
   for others.

Status of This Memo

   This is an Internet Standards Track document.

   This document is a product of the Internet Engineering Task Force
   (IETF).  It represents the consensus of the IETF community.  It has
   received public review and has been approved for publication by the
   Internet Engineering Steering Group (IESG).  Further information on
   Internet Standards is available in Section 2 of RFC 5741.

   Information about the current status of this document, any errata,
   and how to provide feedback on it may be obtained at
   http://www.rfc-editor.org/info/rfc6940.

Jennings, et al.             Standards Track                    [Page 1]
RFC 6940                       RELOAD Base                  January 2014

Copyright Notice

   Copyright (c) 2014 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

   This document is subject to BCP 78 and the IETF Trust's Legal
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   described in the Simplified BSD License.

   This document may contain material from IETF Documents or IETF
   Contributions published or made publicly available before November
   10, 2008.  The person(s) controlling the copyright in some of this
   material may not have granted the IETF Trust the right to allow
   modifications of such material outside the IETF Standards Process.
   Without obtaining an adequate license from the person(s) controlling
   the copyright in such materials, this document may not be modified
   outside the IETF Standards Process, and derivative works of it may
   not be created outside the IETF Standards Process, except to format
   it for publication as an RFC or to translate it into languages other
   than English.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   7
     1.1.  Basic Setting . . . . . . . . . . . . . . . . . . . . . .   8
     1.2.  Architecture  . . . . . . . . . . . . . . . . . . . . . .  10
       1.2.1.  Usage Layer . . . . . . . . . . . . . . . . . . . . .  13
       1.2.2.  Message Transport . . . . . . . . . . . . . . . . . .  13
       1.2.3.  Storage . . . . . . . . . . . . . . . . . . . . . . .  14
       1.2.4.  Topology Plug-in  . . . . . . . . . . . . . . . . . .  15
       1.2.5.  Forwarding and Link Management Layer  . . . . . . . .  16
     1.3.  Security  . . . . . . . . . . . . . . . . . . . . . . . .  16
     1.4.  Structure of This Document  . . . . . . . . . . . . . . .  17
   2.  Requirements Language . . . . . . . . . . . . . . . . . . . .  18
   3.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .  18
   4.  Overlay Management Overview . . . . . . . . . . . . . . . . .  21
     4.1.  Security and Identification . . . . . . . . . . . . . . .  21

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