DLEP Control Plane Based Pause Extension
draft-ietf-manet-dlep-pause-extension-02

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Last updated 2017-10-30
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Network Working Group                                           B. Cheng
Internet-Draft                                                D. Wiggins
Intended status: Standards Track                      Lincoln Laboratory
Expires: May 3, 2018                                      L. Berger, Ed.
                                                 LabN Consulting, L.L.C.
                                                        October 30, 2017

                DLEP Control Plane Based Pause Extension
                draft-ietf-manet-dlep-pause-extension-02

Abstract

   This document defines an extension to the DLEP protocol that enables
   a modem to use DLEP messages to pause and resume data traffic coming
   from its peer router.

Status of This Memo

   This Internet-Draft is submitted in full conformance with the
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   This Internet-Draft will expire on May 3, 2018.

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Cheng, et al.              Expires May 3, 2018                  [Page 1]
Internet-Draft            DLEP Pause Extension              October 2017

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
     1.1.  Key Words . . . . . . . . . . . . . . . . . . . . . . . .   3
   2.  Extension Usage and Identification  . . . . . . . . . . . . .   3
   3.  Extension Data Items  . . . . . . . . . . . . . . . . . . . .   3
     3.1.  Queue Parameters  . . . . . . . . . . . . . . . . . . . .   3
       3.1.1.  Queue Parameter Sub Data Item . . . . . . . . . . . .   5
     3.2.  Pause . . . . . . . . . . . . . . . . . . . . . . . . . .   6
     3.3.  Restart . . . . . . . . . . . . . . . . . . . . . . . . .   7
   4.  Security Considerations . . . . . . . . . . . . . . . . . . .   8
   5.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   8
     5.1.  Extension Type Value  . . . . . . . . . . . . . . . . . .   9
     5.2.  Data Item Values  . . . . . . . . . . . . . . . . . . . .   9
   6.  References  . . . . . . . . . . . . . . . . . . . . . . . . .   9
     6.1.  Normative References  . . . . . . . . . . . . . . . . . .   9
     6.2.  Informative References  . . . . . . . . . . . . . . . . .  10
   Appendix A.  Acknowledgments  . . . . . . . . . . . . . . . . . .  10
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  10

1.  Introduction

   The Dynamic Link Event Protocol (DLEP) is defined in [RFC8175].  It
   provides the exchange of link related control information between
   DLEP peers.  DLEP peers are comprised of a modem and a router.  DLEP
   defines a base set of mechanisms as well as support for possible
   extensions.  This document defines one such extension.

   The base DLEP specification does not include any data plane flow
   control capability.  Various flow control methods are possible, e.g.,
   see [I-D.ietf-manet-credit-window].  The extension defined in this
   document supports flow control of data traffic based on explicit
   messages sent via DLEP by a modem to indicate when a router should
   hold off sending traffic, and when it should resume.  The extension
   also optionally supports DSCP (differentiated services codepoint)
   aware, see [RFC2475], flow control.  The extension defined in this
   document is referred to as "Control Plane Based Pause".  Note that
   this mechanism only controls traffic that is to be transmitted on the
   modem's attached data channel and not to DLEP control messages
   themselves.

   This document defines a new DLEP Extension Type Value in Section 2
   which is used to indicate the use of the extension, and three new
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