Internet Engineering Task Force M. Goyal, Ed.
Internet-Draft University of Wisconsin
Intended status: Experimental Milwaukee
Expires: September 21, 2013 E. Baccelli
M. Philipp
INRIA
A. Brandt
Sigma Designs
J. Martocci
Johnson Controls
March 20, 2013
Reactive Discovery of Point-to-Point Routes in Low Power and Lossy
Networks
draft-ietf-roll-p2p-rpl-17
Abstract
This document specifies a point-to-point route discovery mechanism,
complementary to the RPL core functionality. This mechanism allows
an IPv6 router to discover "on demand" routes to one or more IPv6
routers in the LLN such that the discovered routes meet specified
metrics constraints.
Status of this Memo
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This Internet-Draft will expire on September 21, 2013.
Copyright Notice
Copyright (c) 2013 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
Goyal, et al. Expires September 21, 2013 [Page 1]
Internet-Draft draft-ietf-roll-p2p-rpl-17 March 2013
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.1. Known Issues/Future Work . . . . . . . . . . . . . . . . . 4
2. The Use Cases . . . . . . . . . . . . . . . . . . . . . . . . 5
3. Terminology . . . . . . . . . . . . . . . . . . . . . . . . . 5
4. Applicability . . . . . . . . . . . . . . . . . . . . . . . . 6
5. Functional Overview . . . . . . . . . . . . . . . . . . . . . 8
6. P2P Route Discovery Mode Of Operation . . . . . . . . . . . . 10
6.1. Setting a P2P Mode DIO . . . . . . . . . . . . . . . . . . 11
7. P2P Route Discovery Option (P2P-RDO) . . . . . . . . . . . . . 14
8. The P2P Discovery Reply Object (P2P-DRO) . . . . . . . . . . . 18
8.1. Secure P2P-DRO . . . . . . . . . . . . . . . . . . . . . . 20
8.2. Setting a P2P-RDO Carried in a P2P Discovery Reply
Object . . . . . . . . . . . . . . . . . . . . . . . . . . 20
9. P2P-RPL Route Discovery By Creating a Temporary DAG . . . . . 21
9.1. Joining a Temporary DAG . . . . . . . . . . . . . . . . . 21
9.2. Trickle Operation For P2P Mode DIOs . . . . . . . . . . . 22
9.3. Processing a P2P Mode DIO . . . . . . . . . . . . . . . . 24
9.4. Additional Processing of a P2P Mode DIO At An
Intermediate Router . . . . . . . . . . . . . . . . . . . 25
9.5. Additional Processing of a P2P Mode DIO At The Target . . 26
9.6. Processing a P2P-DRO At An Intermediate Router . . . . . . 27
9.7. Processing a P2P-DRO At The Origin . . . . . . . . . . . . 29
10. The P2P Discovery Reply Object Acknowledgement
(P2P-DRO-ACK) . . . . . . . . . . . . . . . . . . . . . . . . 30
11. Secure P2P-RPL Operation . . . . . . . . . . . . . . . . . . . 31
12. Packet Forwarding Along a Route Discovered Using P2P-RPL . . . 32
13. Interoperability with Core RPL . . . . . . . . . . . . . . . . 33
14. Security Considerations . . . . . . . . . . . . . . . . . . . 33
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