Simple TCP Convergence-Layer Protocol
draft-burleigh-dtn-stcp-00

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Delay-Tolerant Networking Working Group                     S. Burleigh
Internet Draft                          JPL, Calif. Inst. Of Technology
Intended status: Standards Track                     September 14, 2018
Expires: March 2019

                   Simple TCP Convergence-Layer Protocol
                      draft-burleigh-dtn-stcp-00.txt

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Abstract

   This document describes a Simple TCP (STCP) "convergence-layer"
   protocol for the Delay-Tolerant Networking (DTN) Bundle Protocol
   (BP).  STCP uses Transmission Control Protocol (TCP) to transmit BP
   "bundles" from one BP node to another node to which it is
   topologically adjacent in the BP network. The services provided by
   the STCP convergence-layer protocol adapter utilize a standard TCP
   connection for the purposes of bundle transmission.

Table of Contents

   1. Introduction...................................................2
   2. Conventions used in this document..............................3
   3. STCP Design Elements...........................................3
      3.1. STCP Endpoints............................................3
      3.2. STCP Protocol Data Units..................................4
      3.3. Custody Signals................Error! Bookmark not defined.
      3.4. Custody Transfer Status ReportsError! Bookmark not defined.
   4. STCP Procedures................................................4
      4.1. SPDU Transmission.........................................4
      4.2. SPDU Reception.................Error! Bookmark not defined.
      4.3. Retransmission Timer ExpirationError! Bookmark not defined.
      4.4. Custody Signal Reception.......Error! Bookmark not defined.
   5. Security Considerations........................................6
   6. IANA Considerations............................................6
   7. References.....................................................6
      7.1. Normative References......................................6
      7.2. Informative References....................................6
   8. Acknowledgments................................................6
   Appendix A. For More Information..................................7
   Appendix B. CDDL expression............Error! Bookmark not defined.

1. Introduction

   This document describes the Simple TCP (STCP) protocol, a Delay-
   Tolerant Networking (DTN) Bundle Protocol (BP) [RFC5050]
   "convergence layer" protocol that uses a standard TCP connection to
   transmit bundles from one BP node to another node to which it is
   topologically adjacent in the BP network.

   Conformance to the STCP convergence-layer protocol specification is
   OPTIONAL for BP nodes.

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Internet-Draft  Simple TCP Convergence-Layer Protocol    September 2018

   Each BP node that conforms to the STCP specification includes an
   STCP convergence-layer adapter (SCLA).  Every SCLA engages in
   communication via the Transmission Control Protocol [RFC0793].

   Like any convergence-layer adapter, the STCP CLA provides:

     . A transmission service that sends an outbound bundle (from the
        bundle protocol agent) to a peer CLA via the STCP convergence
        layer protocol.
     . A reception service that delivers to the bundle protocol agent
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