An Abstract Application Layer Interface to Transport Services
draft-ietf-taps-interface-09

Document Type Active Internet-Draft (taps WG)
Last updated 2020-07-27
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TAPS Working Group                                      B. Trammell, Ed.
Internet-Draft                                   Google Switzerland GmbH
Intended status: Standards Track                           M. Welzl, Ed.
Expires: January 28, 2021                             University of Oslo
                                                             T. Enghardt
                                                                 Netflix
                                                            G. Fairhurst
                                                  University of Aberdeen
                                                           M. Kuehlewind
                                                                Ericsson
                                                              C. Perkins
                                                   University of Glasgow
                                                               P. Tiesel
                                                               TU Berlin
                                                                 C. Wood
                                                              Cloudflare
                                                                T. Pauly
                                                              Apple Inc.
                                                           July 27, 2020

     An Abstract Application Layer Interface to Transport Services
                    draft-ietf-taps-interface-09

Abstract

   This document describes an abstract application programming
   interface, API, to the transport layer, following the Transport
   Services Architecture.  It supports the asynchronous, atomic
   transmission of messages over transport protocols and network paths
   dynamically selected at runtime.  It is intended to replace the
   traditional BSD sockets API as the common interface to the transport
   layer, in an environment where endpoints could select from multiple
   interfaces and potential transport protocols.

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).  Note that other groups may also distribute
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   Drafts is at https://datatracker.ietf.org/drafts/current/.

   Internet-Drafts are draft documents valid for a maximum of six months
   and may be updated, replaced, or obsoleted by other documents at any

Trammell, et al.        Expires January 28, 2021                [Page 1]
Internet-Draft               TAPS Interface                    July 2020

   time.  It is inappropriate to use Internet-Drafts as reference
   material or to cite them other than as "work in progress."

   This Internet-Draft will expire on January 28, 2021.

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
   (https://trustee.ietf.org/license-info) in effect on the date of
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   include Simplified BSD License text as described in Section 4.e of
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   described in the Simplified BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   4
   2.  Terminology and Notation  . . . . . . . . . . . . . . . . . .   5
   3.  Overview of Interface Design  . . . . . . . . . . . . . . . .   6
   4.  API Summary . . . . . . . . . . . . . . . . . . . . . . . . .   7
     4.1.  Usage Examples  . . . . . . . . . . . . . . . . . . . . .   7
       4.1.1.  Server Example  . . . . . . . . . . . . . . . . . . .   8
       4.1.2.  Client Example  . . . . . . . . . . . . . . . . . . .   9
       4.1.3.  Peer Example  . . . . . . . . . . . . . . . . . . . .  10
     4.2.  Transport Properties  . . . . . . . . . . . . . . . . . .  11
       4.2.1.  Transport Property Names  . . . . . . . . . . . . . .  12
       4.2.2.  Transport Property Types  . . . . . . . . . . . . . .  13
     4.3.  Scope of the Interface Definition . . . . . . . . . . . .  14
   5.  Pre-Establishment Phase . . . . . . . . . . . . . . . . . . .  15
     5.1.  Specifying Endpoints  . . . . . . . . . . . . . . . . . .  15
     5.2.  Specifying Transport Properties . . . . . . . . . . . . .  18
       5.2.1.  Reliable Data Transfer (Connection) . . . . . . . . .  20
       5.2.2.  Preservation of Message Boundaries  . . . . . . . . .  20
       5.2.3.  Configure Per-Message Reliability . . . . . . . . . .  21
       5.2.4.  Preservation of Data Ordering . . . . . . . . . . . .  21
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