An extension to RELOAD to support Relay Peer Routing
draft-ietf-p2psip-rpr-04
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P2PSIP N. Zong, Ed.
Internet-Draft X. Jiang
Intended status: Standards Track R. Even
Expires: August 21, 2013 Huawei Technologies
Y. Zhang
China Mobile
February 17, 2013
An extension to RELOAD to support Relay Peer Routing
draft-ietf-p2psip-rpr-04
Abstract
This document proposes an optional extension to RELOAD to support
relay peer routing mode. RELOAD recommends symmetric recursive
routing for routing messages. The new optional extension provides a
shorter route for responses reducing the overhead on intermediary
peers and describes the potential cases where this extension can be
used.
Status of this Memo
This Internet-Draft is submitted in full conformance with the
provisions of BCP 78 and BCP 79.
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This Internet-Draft will expire on August 21, 2013.
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Copyright (c) 2013 IETF Trust and the persons identified as the
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Zong, et al. Expires August 21, 2013 [Page 1]
Internet-Draft P2PSIP relay February 2013
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Zong, et al. Expires August 21, 2013 [Page 2]
Internet-Draft P2PSIP relay February 2013
Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.1. Backgrounds . . . . . . . . . . . . . . . . . . . . . . . 4
2. Terminology . . . . . . . . . . . . . . . . . . . . . . . . . 4
3. Problem Statement . . . . . . . . . . . . . . . . . . . . . . 5
3.1. Overview . . . . . . . . . . . . . . . . . . . . . . . . . 5
3.1.1. Relay Peer Routing (RPR) . . . . . . . . . . . . . . . 5
3.2. Scenarios Where RPR Benefits . . . . . . . . . . . . . . . 6
3.2.1. Managed or Closed P2P System . . . . . . . . . . . . . 6
3.2.2. Using Bootstrap Peers 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. Comparison on cost of SRR and RPR . . . . . . . . . . . . . . 8
5.1. Closed or managed networks . . . . . . . . . . . . . . . . 8
5.2. Open networks . . . . . . . . . . . . . . . . . . . . . . 9
6. Extensions to RELOAD . . . . . . . . . . . . . . . . . . . . . 9
6.1. Basic Requirements . . . . . . . . . . . . . . . . . . . . 9
6.2. Modification To RELOAD Message Structure . . . . . . . . . 9
6.2.1. State-keeping Flag . . . . . . . . . . . . . . . . . . 10
6.2.2. Extensive Routing Mode . . . . . . . . . . . . . . . . 10
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