DLEP DiffServ Aware Credit Window Extension
draft-ietf-manet-dlep-da-credit-extension-04

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Last updated 2018-03-01
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Network Working Group                                           B. Cheng
Internet-Draft                                                D. Wiggins
Intended status: Standards Track                      Lincoln Laboratory
Expires: September 2, 2018                                     L. Berger
                                                 LabN Consulting, L.L.C.
                                                           March 1, 2018

              DLEP DiffServ Aware Credit Window Extension
              draft-ietf-manet-dlep-da-credit-extension-04

Abstract

   This document defines an extension to the DLEP protocol that enables
   a DiffServ aware credit-window scheme for destination-specific and
   shared flow control.  The extension is logically composed of two
   mechanisms.  The first provides credit window control, the second
   identifies how flows are identified and mapped to a credit window.

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 September 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
   (https://trustee.ietf.org/license-info) in effect on the date of
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   carefully, as they describe your rights and restrictions with respect
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   include Simplified BSD License text as described in Section 4.e of

Cheng, et al.           Expires September 2, 2018               [Page 1]
Internet-Draft          DLEP DA Credit Extension              March 2018

   the Trust Legal Provisions and are provided without warranty as
   described in the Simplified BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
     1.1.  Key Words . . . . . . . . . . . . . . . . . . . . . . . .   4
   2.  Extension Overview  . . . . . . . . . . . . . . . . . . . . .   4
   3.  Extension Usage and Identification  . . . . . . . . . . . . .   5
   4.  Credit Window Control . . . . . . . . . . . . . . . . . . . .   5
     4.1.  Data Plane Considerations . . . . . . . . . . . . . . . .   5
     4.2.  Extension Messages  . . . . . . . . . . . . . . . . . . .   6
       4.2.1.  Credit Control Message  . . . . . . . . . . . . . . .   6
       4.2.2.  Credit Control Response Message . . . . . . . . . . .   7
     4.3.  Credit Window Control Data Items  . . . . . . . . . . . .   7
       4.3.1.  Credit Window Initialization  . . . . . . . . . . . .   8
       4.3.2.  Credit Window Associate . . . . . . . . . . . . . . .  10
       4.3.3.  Credit Window Grant . . . . . . . . . . . . . . . . .  11
       4.3.4.  Credit Window Status  . . . . . . . . . . . . . . . .  12
       4.3.5.  Credit Window Request . . . . . . . . . . . . . . . .  14
   5.  Traffic Classification  . . . . . . . . . . . . . . . . . . .  15
     5.1.  Traffic Classification Data Item  . . . . . . . . . . . .  15
       5.1.1.  Traffic Classification Sub Data Item  . . . . . . . .  17
     5.2.  DiffServ Credit Window Traffic Classification Sub Data
           Item  . . . . . . . . . . . . . . . . . . . . . . . . . .  17
   6.  Compatibility . . . . . . . . . . . . . . . . . . . . . . . .  19
   7.  Management Considerations . . . . . . . . . . . . . . . . . .  19
   8.  Security Considerations . . . . . . . . . . . . . . . . . . .  20
   9.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  20
     9.1.  Extension Type Value  . . . . . . . . . . . . . . . . . .  20
     9.2.  Message Values  . . . . . . . . . . . . . . . . . . . . .  20
     9.3.  Data Item Values  . . . . . . . . . . . . . . . . . . . .  21
     9.4.  DLEP Sub Data Item Registry . . . . . . . . . . . . . . .  21
   10. References  . . . . . . . . . . . . . . . . . . . . . . . . .  22
     10.1.  Normative References . . . . . . . . . . . . . . . . . .  22
     10.2.  Informative References . . . . . . . . . . . . . . . . .  22
   Appendix A.  Acknowledgments  . . . . . . . . . . . . . . . . . .  23
   Appendix B.  Notional Support for Ethernet Priority Code Points .  23
     B.1.  Notional Ethernet Credit Window Traffic Classification
           Sub Data Item . . . . . . . . . . . . . . . . . . . . . .  24
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