Delay Tolerant Networking TCP Convergence Layer Protocol
draft-irtf-dtnrg-tcp-clayer-05

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Last updated 2013-01-22
Replaces draft-demmer-dtnrg-tcp-clayer
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Delay Tolerant Networking Research                             M. Demmer
Group                                                        UC Berkeley
Internet-Draft                                                    J. Ott
Intended status: Experimental                     Helsinki University of
Expires: July 26, 2013                                        Technology
                                                            S. Perreault
                                                                Viagenie
                                                        January 22, 2013

        Delay Tolerant Networking TCP Convergence Layer Protocol
                   draft-irtf-dtnrg-tcp-clayer-05.txt

Abstract

   This document describes the protocol for the TCP-based Convergence
   Layer for Delay Tolerant Networking (DTN).

Status of this Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

   Internet-Drafts are working documents of the Internet Engineering
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   This Internet-Draft will expire on July 26, 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
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   the Trust Legal Provisions and are provided without warranty as

Demmer, et al.            Expires July 26, 2013                 [Page 1]
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   described in the Simplified BSD License.

Table of Contents

   1.  Introduction . . . . . . . . . . . . . . . . . . . . . . . . .  3
   2.  Definitions  . . . . . . . . . . . . . . . . . . . . . . . . .  4
     2.1.  Definitions Relating to the Bundle Protocol  . . . . . . .  4
     2.2.  Definitions specific to the TCPCL Protocol . . . . . . . .  5
   3.  General Protocol Description . . . . . . . . . . . . . . . . .  6
     3.1.  Bidirectional Use of TCP Connection  . . . . . . . . . . .  7
     3.2.  Example message exchange . . . . . . . . . . . . . . . . .  7
   4.  Connection Establishment . . . . . . . . . . . . . . . . . . .  8
     4.1.  Contact Header . . . . . . . . . . . . . . . . . . . . . .  9
     4.2.  Validation and parameter negotiation . . . . . . . . . . . 11
   5.  Established Connection Operation . . . . . . . . . . . . . . . 12
     5.1.  Message Type Codes . . . . . . . . . . . . . . . . . . . . 12
     5.2.  Bundle Data Transmission . . . . . . . . . . . . . . . . . 13
     5.3.  Bundle Acknowledgments . . . . . . . . . . . . . . . . . . 14
     5.4.  Bundle Refusal . . . . . . . . . . . . . . . . . . . . . . 15
     5.5.  Bundle Length  . . . . . . . . . . . . . . . . . . . . . . 16
     5.6.  Keepalive Messages . . . . . . . . . . . . . . . . . . . . 17
   6.  Connection Termination . . . . . . . . . . . . . . . . . . . . 18
     6.1.  Shutdown Message . . . . . . . . . . . . . . . . . . . . . 18
     6.2.  Idle Connection Shutdown . . . . . . . . . . . . . . . . . 19
   7.  Security Considerations  . . . . . . . . . . . . . . . . . . . 20
   8.  IANA Considerations  . . . . . . . . . . . . . . . . . . . . . 20
     8.1.  Port Number  . . . . . . . . . . . . . . . . . . . . . . . 20
     8.2.  Protocol Versions  . . . . . . . . . . . . . . . . . . . . 21
     8.3.  Message Types  . . . . . . . . . . . . . . . . . . . . . . 21
     8.4.  REFUSE Reason Codes  . . . . . . . . . . . . . . . . . . . 21
     8.5.  SHUTDOWN Reason Codes  . . . . . . . . . . . . . . . . . . 21
   9.  References . . . . . . . . . . . . . . . . . . . . . . . . . . 21
     9.1.  Normative References . . . . . . . . . . . . . . . . . . . 21
     9.2.  Informative References . . . . . . . . . . . . . . . . . . 22
   Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . . 22

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1.  Introduction

   This document describes the TCP-based convergence layer protocol for
   Delay Tolerant Networking (TCPCL).  Delay Tolerant Networking is an
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