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A SIP Usage for REsource LOcation And Discovery (RELOAD) (RFC7904) Disclosure Number: IPCOM000248000D
Original Publication Date: 2016-Oct-01
Included in the Prior Art Database: 2016-Oct-15
Document File: 40 page(s) / 42K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

C. Jennings: AUTHOR [+6]


REsource LOcation And Discovery (RELOAD) [RFC6940] specifies a peer- to-peer (P2P) signaling protocol for general use on the Internet. This document defines a SIP Usage of RELOAD that allows SIP [RFC3261] user agents (UAs) to establish peer-to-peer SIP (or SIPS) sessions without the requirement for a permanent proxy or registration servers, e.g., a fully distributed telephony service. This service transparently supports SIP addressing including telephone numbers. In such a network, the RELOAD overlay itself performs the registration and rendezvous functions ordinarily associated with such servers.

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Internet Engineering Task Force (IETF)                       C. Jennings Request for Comments: 7904                                         Cisco Category: Standards Track                                    B. Lowekamp ISSN: 2070-1721                                                    Skype                                                              E. Rescorla                                                               RTFM, Inc.                                                                 S. Baset                                                                      IBM                                                           H. Schulzrinne                                                      Columbia University                                                          T. Schmidt, Ed.                                                              HAW Hamburg                                                             October 2016

         A SIP Usage for REsource LOcation And Discovery (RELOAD)


   This document defines a SIP Usage for REsource LOcation And Discovery    (RELOAD).  The SIP Usage provides the functionality of a SIP proxy or    registrar in a fully distributed system and includes a lookup service    for Address of Records (AORs) stored in the overlay.  It also defines    Globally Routable User Agent URIs (GRUUs) that allow the    registrations to map an AOR to a specific node reachable through the    overlay.  After such initial contact of a Peer, the RELOAD AppAttach    method is used to establish a direct connection between nodes through    which SIP messages are exchanged.

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 7841.

   Information about the current status of this document, any errata,    and how to provide feedback on it may be obtained at

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