DLEP Control Plane Based Pause Extension
draft-cheng-manet-dlep-pause-extension-00

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Last updated 2016-10-27
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Network Working Group                                           B. Cheng
Internet-Draft                                                D. Wiggins
Intended status: Standards Track                      Lincoln Laboratory
Expires: April 30, 2017                                   L. Berger, Ed.
                                                 LabN Consulting, L.L.C.
                                                        October 27, 2016

                DLEP Control Plane Based Pause Extension
               draft-cheng-manet-dlep-pause-extension-00

Abstract

   This document defines an extension to the DLEP protocol that enables
   a simple control plane based flow control mechanism.

Status of This Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

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   This Internet-Draft will expire on April 30, 2017.

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   Copyright (c) 2016 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

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Cheng, et al.            Expires April 30, 2017                 [Page 1]
Internet-Draft            DLEP Pause Extension              October 2016

Table of Contents

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

1.  Introduction

   The Dynamic Link Event Protocol (DLEP) is defined in
   [I-D.ietf-manet-dlep].  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 flow control
   capability.  There are various flow control possible, e.g., see
   [I-D.ietf-manet-credit-window].  The extension defined in this
   document supports flow control 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 Pause".

   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
   DLEP Data Items in Section 3.

1.1.  Key Words

   The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
   "SHOULD", "SHOULD NOT", "RECOMMENDED", "NOT RECOMMENDED", "MAY", and
   "OPTIONAL" in this document are to be interpreted as described in BCP
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