Increasing Throughput in IP Networks with ESP-Based Forwarding: ESPBasedForwarding
RFC 5984

Document Type RFC - Experimental (March 2011; No errata)
Last updated 2013-03-02
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Independent Submission                                       K-M. Moller
Request for Comments: 5984                                  1 April 2011
Category: Experimental
ISSN: 2070-1721

    Increasing Throughput in IP Networks with ESP-Based Forwarding:
                           ESPBasedForwarding

Abstract

   This document proposes an experimental way of reaching infinite
   bandwidth in IP networks by the use of ESP-based forwarding.

Status of This Memo

   This document is not an Internet Standards Track specification; it is
   published for examination, experimental implementation, and
   evaluation.

   This document defines an Experimental Protocol for the Internet
   community.  This is a contribution to the RFC Series, independently
   of any other RFC stream.  The RFC Editor has chosen to publish this
   document at its discretion and makes no statement about its value for
   implementation or deployment.  Documents approved for publication by
   the RFC Editor are not a candidate for any level of Internet
   Standard; see Section 2 of RFC 5741.

   Information about the current status of this document, any errata,
   and how to provide feedback on it may be obtained at
   http://www.rfc-editor.org/info/rfc5984.

Copyright Notice

   Copyright (c) 2011 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.

Moller                        Experimental                      [Page 1]
RFC 5984                  ESP-Based Forwarding              1 April 2011

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . . . 2
     1.1.  Requirements Language . . . . . . . . . . . . . . . . . . . 2
   2.  Background  . . . . . . . . . . . . . . . . . . . . . . . . . . 2
     2.1.  Experiments with Black Fiber  . . . . . . . . . . . . . . . 3
     2.2.  Schrodinger's Cat Experiment  . . . . . . . . . . . . . . . 3
   3.  ESP-Based Forwarding  . . . . . . . . . . . . . . . . . . . . . 4
     3.1.  Principle of Operation  . . . . . . . . . . . . . . . . . . 4
     3.2.  Architectural Components  . . . . . . . . . . . . . . . . . 4
       3.2.1.  DPAUI . . . . . . . . . . . . . . . . . . . . . . . . . 5
       3.2.2.  PPG . . . . . . . . . . . . . . . . . . . . . . . . . . 5
       3.2.3.  IID . . . . . . . . . . . . . . . . . . . . . . . . . . 5
       3.2.4.  CFE . . . . . . . . . . . . . . . . . . . . . . . . . . 6
       3.2.5.  PPS . . . . . . . . . . . . . . . . . . . . . . . . . . 6
       3.2.6.  ND  . . . . . . . . . . . . . . . . . . . . . . . . . . 6
   4.  End User Considerations . . . . . . . . . . . . . . . . . . . . 7
   5.  TCP Slow-Start Considerations . . . . . . . . . . . . . . . . . 7
   6.  Market Considerations . . . . . . . . . . . . . . . . . . . . . 7
   7.  Security Considerations . . . . . . . . . . . . . . . . . . . . 7
   8.  References  . . . . . . . . . . . . . . . . . . . . . . . . . . 8
     8.1.  Normative References  . . . . . . . . . . . . . . . . . . . 8
     8.2.  Informative References  . . . . . . . . . . . . . . . . . . 8

1.  Introduction

   Mechanisms for efficient packet forwarding has evolved over the past
   years.  The demand for bandwidth is always increasing.  Instead of
   optimizing forwarding performance and link capacity in an incremental
   fashion, we propose a brand new concept in packet forwarding that
   will provide unsurpassed end user performance regardless of link
   capacity, distance, and number of hops.

1.1.  Requirements Language

   The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
   "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
   document are to be interpreted as described in RFC 2119 [RFC2119].

2.  Background

   During the past years, there have been a lot of improvements made in
   the domain of packet forwarding.  Both software and hardware
   optimizations combined with increased link capacities have cut down
   round-trip times.  Despite these improvements, many users find
   themselves frustrated since their demand for bandwidth has increased
   faster than the supply.

Moller                        Experimental                      [Page 2]
RFC 5984                  ESP-Based Forwarding              1 April 2011

   The current incremental approach to lower latency and increase
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