Representing Multi-Value Time in Mobile Ad Hoc Networks (MANETs)
RFC 5497

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Network Working Group                                         T. Clausen
Request for Comments: 5497                      LIX, Ecole Polytechnique
Category: Standards Track                                    C. Dearlove
                                                         BAE Systems ATC
                                                              March 2009

    Representing Multi-Value Time in Mobile Ad Hoc Networks (MANETs)

Status of This Memo

   This document specifies an Internet standards track protocol for the
   Internet community, and requests discussion and suggestions for
   improvements.  Please refer to the current edition of the "Internet
   Official Protocol Standards" (STD 1) for the standardization state
   and status of this protocol.  Distribution of this memo is unlimited.

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Abstract

   This document describes a general and flexible TLV (type-length-value
   structure) for representing time-values, such as an interval or a
   duration, using the generalized Mobile Ad hoc NETwork (MANET) packet/
   message format.  It defines two Message TLVs and two Address Block
   TLVs for representing validity and interval times for MANET routing
   protocols.

Clausen & Dearlove          Standards Track                     [Page 1]
RFC 5497                        Time TLV                      March 2009

Table of Contents

   1.  Introduction . . . . . . . . . . . . . . . . . . . . . . . . .  3
     1.1.  Motivation and Rationale . . . . . . . . . . . . . . . . .  3
   2.  Terminology  . . . . . . . . . . . . . . . . . . . . . . . . .  5
   3.  Applicability Statement  . . . . . . . . . . . . . . . . . . .  6
   4.  Protocol Overview and Functioning  . . . . . . . . . . . . . .  6
   5.  Representing Time  . . . . . . . . . . . . . . . . . . . . . .  6
   6.  General Time TLV Structure . . . . . . . . . . . . . . . . . .  7
     6.1.  Single-Value Time TLVs . . . . . . . . . . . . . . . . . .  8
     6.2.  Multi-Value Time TLVs  . . . . . . . . . . . . . . . . . .  9
   7.  Message TLVs . . . . . . . . . . . . . . . . . . . . . . . . . 10
     7.1.  INTERVAL_TIME TLV  . . . . . . . . . . . . . . . . . . . . 10
     7.2.  VALIDITY_TIME TLV  . . . . . . . . . . . . . . . . . . . . 10
   8.  Address Block TLVs . . . . . . . . . . . . . . . . . . . . . . 10
     8.1.  INTERVAL_TIME TLV  . . . . . . . . . . . . . . . . . . . . 10
     8.2.  VALIDITY_TIME TLV  . . . . . . . . . . . . . . . . . . . . 11
   9.  IANA Considerations  . . . . . . . . . . . . . . . . . . . . . 11
     9.1.  Expert Review: Evaluation Guidelines . . . . . . . . . . . 11
     9.2.  Message TLV Types  . . . . . . . . . . . . . . . . . . . . 12
     9.3.  Address Block TLV Types  . . . . . . . . . . . . . . . . . 12
   10. Security Considerations  . . . . . . . . . . . . . . . . . . . 13
   11. References . . . . . . . . . . . . . . . . . . . . . . . . . . 13
     11.1. Normative References . . . . . . . . . . . . . . . . . . . 13
     11.2. Informative References . . . . . . . . . . . . . . . . . . 13
   Appendix A.  Acknowledgements  . . . . . . . . . . . . . . . . . . 14

Clausen & Dearlove          Standards Track                     [Page 2]
RFC 5497                        Time TLV                      March 2009

1.  Introduction

   The generalized packet/message format [RFC5444] specifies a signaling
   format that MANET routing protocols can employ for exchanging
   protocol information.  This format presents the ability to express
   and associate attributes to packets, messages, or addresses, by way
   of a general TLV (type-length-value) mechanism.

   This document specifies a general Time TLV structure, which can be
   used by any MANET routing protocol that needs to express either
   single time-values or a set of time-values with each time-value