DLEP Credit-Based Flow Control Messages and Data Items
draft-ietf-manet-dlep-credit-flow-control-00

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Network Working Group                                           B. Cheng
Internet-Draft                                                D. Wiggins
Intended status: Standards Track                      Lincoln Laboratory
Expires: November 2, 2018                                      L. Berger
                                                 LabN Consulting, L.L.C.
                                                             May 1, 2018

         DLEP Credit-Based Flow Control Messages and Data Items
              draft-ietf-manet-dlep-credit-flow-control-00

Abstract

   This document defines new DLEP protocol Data Items that are used to
   support credit-based flow control.  The Data Items enable separate
   but related functions: traffic classification and credit window
   control.  Traffic classification information is used to identify
   traffic flows based on frame/packet content such as destination
   address.  Credit window control is used to regulate when data may be
   sent to an associated virtual or physical queue.  The Data Items are
   defined in an extensible and reusable fashion.  Their use will be
   mandated in other documents defining specific DLEP extensions.  This
   document also introduces DLEP sub-data items.

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
   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 November 2, 2018.

Copyright Notice

   Copyright (c) 2018 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

Cheng, et al.           Expires November 2, 2018                [Page 1]
Internet-Draft       DLEP Credit-Based Flow Control             May 2018

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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
     1.1.  Key Words . . . . . . . . . . . . . . . . . . . . . . . .   4
   2.  Traffic Classification  . . . . . . . . . . . . . . . . . . .   4
     2.1.  Traffic Classification Data Item  . . . . . . . . . . . .   5
       2.1.1.  Traffic Classification Sub Data Item  . . . . . . . .   6
     2.2.  DiffServ Traffic Classification Sub Data Item . . . . . .   7
       2.2.1.  Router Receive Processing . . . . . . . . . . . . . .   8
     2.3.  Ethernet Traffic Classification Sub Data Item . . . . . .   8
       2.3.1.  Router Receive Processing . . . . . . . . . . . . . .  10
   3.  Credit Window Control . . . . . . . . . . . . . . . . . . . .  10
     3.1.  Data Plane Considerations . . . . . . . . . . . . . . . .  12
     3.2.  Credit Window Messages  . . . . . . . . . . . . . . . . .  12
       3.2.1.  Credit Control Message  . . . . . . . . . . . . . . .  12
       3.2.2.  Credit Control Response Message . . . . . . . . . . .  13
     3.3.  Credit Window Control Data Items  . . . . . . . . . . . .  13
       3.3.1.  Credit Window Initialization  . . . . . . . . . . . .  14
       3.3.2.  Credit Window Associate . . . . . . . . . . . . . . .  16
       3.3.3.  Credit Window Grant . . . . . . . . . . . . . . . . .  17
       3.3.4.  Credit Window Status  . . . . . . . . . . . . . . . .  18
       3.3.5.  Credit Window Request . . . . . . . . . . . . . . . .  20
     3.4.  Management Considerations . . . . . . . . . . . . . . . .  21
   4.  Compatibility . . . . . . . . . . . . . . . . . . . . . . . .  21
   5.  Security Considerations . . . . . . . . . . . . . . . . . . .  21
   6.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  21
     6.1.  Message Values  . . . . . . . . . . . . . . . . . . . . .  21
     6.2.  Data Item Values  . . . . . . . . . . . . . . . . . . . .  22
     6.3.  DLEP Sub Data Item Registry . . . . . . . . . . . . . . .  22
   7.  References  . . . . . . . . . . . . . . . . . . . . . . . . .  23
     7.1.  Normative References  . . . . . . . . . . . . . . . . . .  23
     7.2.  Informative References  . . . . . . . . . . . . . . . . .  23