Asymmetric AODV-P2P-RPL in Low-Power and Lossy Networks (LLNs)
draft-ietf-roll-aodv-rpl-05

Document Type Active Internet-Draft (roll WG)
Last updated 2018-10-18
Replaces draft-satish-roll-aodv-rpl
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ROLL                                                      S. Anamalamudi
Internet-Draft                                         SRM University-AP
Intended status: Standards Track                                M. Zhang
Expires: April 21, 2019                              Huawei Technologies
                                                              C. Perkins
                                                               Futurewei
                                                             S.V.R.Anand
                                             Indian Institute of Science
                                                                  B. Liu
                                                     Huawei Technologies
                                                        October 18, 2018

     Asymmetric AODV-P2P-RPL in Low-Power and Lossy Networks (LLNs)
                      draft-ietf-roll-aodv-rpl-05

Abstract

   Route discovery for symmetric and asymmetric Point-to-Point (P2P)
   traffic flows is a desirable feature in Low power and Lossy Networks
   (LLNs).  For that purpose, this document specifies a reactive P2P
   route discovery mechanism for both hop-by-hop routing and source
   routing: Ad Hoc On-demand Distance Vector Routing (AODV) based RPL
   protocol.  Paired Instances are used to construct directional paths,
   in case some of the links between source and target node are
   asymmetric.

Status of This Memo

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   This Internet-Draft will expire on April 21, 2019.

Anamalamudi, et al.      Expires April 21, 2019                 [Page 1]
Internet-Draft                  AODV-RPL                    October 2018

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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   3
   2.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   4
   3.  Overview of AODV-RPL  . . . . . . . . . . . . . . . . . . . .   6
   4.  AODV-RPL DIO Options  . . . . . . . . . . . . . . . . . . . .   7
     4.1.  AODV-RPL DIO RREQ Option  . . . . . . . . . . . . . . . .   7
     4.2.  AODV-RPL DIO RREP Option  . . . . . . . . . . . . . . . .   9
     4.3.  AODV-RPL DIO Target Option  . . . . . . . . . . . . . . .  10
   5.  Symmetric and Asymmetric Routes . . . . . . . . . . . . . . .  11
   6.  AODV-RPL Operation  . . . . . . . . . . . . . . . . . . . . .  13
     6.1.  Route Request Generation  . . . . . . . . . . . . . . . .  13
     6.2.  Receiving and Forwarding RREQ messages  . . . . . . . . .  14
       6.2.1.  General Processing  . . . . . . . . . . . . . . . . .  14
       6.2.2.  Additional Processing for Multiple Targets  . . . . .  15
     6.3.  Generating Route Reply (RREP) at TargNode . . . . . . . .  16
       6.3.1.  RREP-DIO for Symmetric route  . . . . . . . . . . . .  16
       6.3.2.  RREP-DIO for Asymmetric Route . . . . . . . . . . . .  16
       6.3.3.  RPLInstanceID Pairing . . . . . . . . . . . . . . . .  16
     6.4.  Receiving and Forwarding Route Reply  . . . . . . . . . .  17
   7.  Gratuitous RREP . . . . . . . . . . . . . . . . . . . . . . .  18
   8.  Operation of Trickle Timer  . . . . . . . . . . . . . . . . .  19
   9.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  19
     9.1.  New Mode of Operation: AODV-RPL . . . . . . . . . . . . .  19
     9.2.  AODV-RPL Options: RREQ, RREP, and Target  . . . . . . . .  19
   10. Security Considerations . . . . . . . . . . . . . . . . . . .  20
   11. Future Work . . . . . . . . . . . . . . . . . . . . . . . . .  20
   12. Contributors  . . . . . . . . . . . . . . . . . . . . . . . .  20
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