Internet Engineering Task Force (IETF) N. Zong
Request for Comments: 7264 X. Jiang
Category: Standards Track R. Even
ISSN: 2070-1721 Huawei Technologies
Y. Zhang
CoolPad / China Mobile
June 2014
An Extension to the REsource LOcation And Discovery (RELOAD) Protocol
to Support Relay Peer Routing
Abstract
This document defines an optional extension to the REsource LOcation
And Discovery (RELOAD) protocol to support the relay peer routing
mode. RELOAD recommends symmetric recursive routing for routing
messages. The new optional extension provides a shorter route for
responses, thereby reducing overhead on intermediate peers. This
document also describes potential cases where this extension can be
used.
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/rfc7264.
Zong, et al. Standards Track [Page 1]RFC 7264 P2PSIP RPR June 2014Copyright 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
Provisions Relating to IETF Documents
(http://trustee.ietf.org/license-info) in effect on the date of
publication of this document. Please review these documents
carefully, as they describe your rights and restrictions with respect
to this document. Code Components extracted from this document must
include Simplified BSD License text as described in Section 4.e of
the Trust Legal Provisions and are provided without warranty as
described in the Simplified BSD License.
Zong, et al. Standards Track [Page 2]RFC 7264 P2PSIP RPR June 2014
Table of Contents
1. Introduction ....................................................3
2. Terminology .....................................................4
3. Overview ........................................................5
3.1. RPR ........................................................5
3.2. Scenarios Where RPR Can Be Used ............................6
3.2.1. Managed or Closed P2P Systems .......................6
3.2.2. Using Bootstrap Nodes as Relay Peers ................7
3.2.3. Wireless Scenarios ..................................7
4. Relationship between SRR and RPR ................................7
4.1. How RPR Works ..............................................7
4.2. How SRR and RPR Work Together ..............................7
5. RPR Extensions to RELOAD ........................................8
5.1. Basic Requirements .........................................8
5.2. Modification to RELOAD Message Structure ...................8
5.2.1. Extensive Routing Mode ..............................8
5.3. Creating a Request .........................................9
5.3.1. Creating a Request for RPR ..........................9
5.4. Request and Response Processing ............................9
5.4.1. Destination Peer: Receiving a Request and
Sending a Response ..................................9
5.4.2. Sending Peer: Receiving a Response .................10
5.4.3. Relay Peer Processing ..............................10
6. Overlay Configuration Extension ................................10
7. Discovery of Relay Peers .......................................11
8. Security Considerations ........................................11
9. IANA Considerations ............................................11
9.1. A New RELOAD Forwarding Option ............................11
10. Acknowledgments ...............................................11
11. References ....................................................12
11.1. Normative References .....................................12
datatracker.ietf.org