Bundle Protocol Version 7
draft-ietf-dtn-bpbis-23

Document Type Active Internet-Draft (dtn WG)
Last updated 2020-02-07
Replaces draft-dtnwg-bp
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Stream WG state Submitted to IESG for Publication (wg milestone: Jul 2019 - RFC5050bis... )
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Delay-Tolerant Networking Working Group                     S. Burleigh
Internet Draft                          JPL, Calif. Inst. Of Technology
Intended status: Standards Track                                K. Fall
Expires: August 10, 2020                      Roland Computing Services
                                                             E. Birrane
                                          APL, Johns Hopkins University
                                                       February 7, 2020

                         Bundle Protocol Version 7
                        draft-ietf-dtn-bpbis-23.txt

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
   Task Force (IETF), its areas, and its working groups.  Note that
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   Drafts.

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   The list of current Internet-Drafts can be accessed at
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   This Internet-Draft will expire on August 10, 2020.

Copyright Notice

   Copyright (c) 2020 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
   Provisions Relating to IETF Documents
   (http://trustee.ietf.org/license-info) in effect on the date of
   publication of this document. Please review these documents
   carefully, as they describe your rights and restrictions with
   respect to this document.  Code Components extracted from this
   document must include Simplified BSD License text as described in

Burleigh                 Expires August 2020                   [Page 1]
Internet-Draft        Bundle Protocol Version 7           February 2020

   Section 4.e of the Trust Legal Provisions and are provided without
   warranty as described in the Simplified BSD License.

Abstract

   This Internet Draft presents a specification for the Bundle
   Protocol, adapted from the experimental Bundle Protocol
   specification developed by the Delay-Tolerant Networking Research
   group of the Internet Research Task Force and documented in RFC
   5050.

Table of Contents

   1. Introduction...................................................3
   2. Conventions used in this document..............................5
   3. Service Description............................................5
      3.1. Definitions...............................................5
      3.2. Discussion of BP concepts.................................9
      3.3. Services Offered by Bundle Protocol Agents...............12
   4. Bundle Format.................................................12
      4.1. BP Fundamental Data Structures...........................13
         4.1.1. CRC Type............................................13
         4.1.2. CRC.................................................14
         4.1.3. Bundle Processing Control Flags.....................14
         4.1.4. Block Processing Control Flags......................15
         4.1.5. Identifiers.........................................16
            4.1.5.1. Endpoint ID....................................16
            4.1.5.2. Node ID........................................18
         4.1.6. DTN Time............................................18
         4.1.7. Creation Timestamp..................................18
         4.1.8. Block-type-specific Data............................19
      4.2. Bundle Representation....................................19
         4.2.1. Bundle..............................................19
         4.2.2. Primary Bundle Block................................19
         4.2.3. Canonical Bundle Block Format.......................22
      4.3. Extension Blocks.........................................23
         4.3.1. Previous Node.......................................23
         4.3.2. Bundle Age..........................................23
         4.3.3. Hop Count...........................................24
   5. Bundle Processing.............................................24
      5.1. Generation of Administrative Records.....................25
      5.2. Bundle Transmission......................................25
      5.3. Bundle Dispatching.......................................26
      5.4. Bundle Forwarding........................................26
         5.4.1. Forwarding Contraindicated..........................28
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