Analysis for FlexE control
draft-wang-ccamp-flexe-control-analysis-02

• Status
• IESG evaluation record
• IESG writeups
• Email expansions
• History

• Versions
• 00
• 01
• 02

Internet Engineering Task Force                             Q. Wang, Ed.
Internet-Draft                                               X. Niu, Ed.
Intended status: Informational                           ZTE Corporation
Expires: January 9, 2020                                           Y. Xu
                                                                   CAICT
                                                            July 8, 2019

                       Analysis for FlexE control
               draft-wang-ccamp-flexe-control-analysis-02

Abstract

   This document gives some analysis about the control of FlexE.

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
   working documents as Internet-Drafts.  The list of current Internet-
   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 January 9, 2020.

Copyright Notice

   Copyright (c) 2019 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
   publication of this document.  Please review these documents
   carefully, as they describe your rights and restrictions with respect
   to this document.  Code Components extracted from this document must
   include Simplified BSD License text as described in Section 4.e of
   the Trust Legal Provisions and are provided without warranty as
   described in the Simplified BSD License.

Wang, et al.             Expires January 9, 2020                [Page 1]
Internet-Draft                FlexE control                    July 2019

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   3
     2.1.  Requirements Language . . . . . . . . . . . . . . . . . .   3
   3.  Analysis  . . . . . . . . . . . . . . . . . . . . . . . . . .   3
     3.1.  General Introduction of FlexE . . . . . . . . . . . . . .   3
       3.1.1.  FlexE Group . . . . . . . . . . . . . . . . . . . . .   3
       3.1.2.  FlexE Client  . . . . . . . . . . . . . . . . . . . .   4
       3.1.3.  Adaptation function between FlexE Client and FlexE
               Group . . . . . . . . . . . . . . . . . . . . . . . .   4
       3.1.4.  MAC Frame . . . . . . . . . . . . . . . . . . . . . .   5
       3.1.5.  Adaptation between MAC frames and FlexE Client  . . .   5
     3.2.  General requirements  . . . . . . . . . . . . . . . . . .   5
       3.2.1.  Configuration Mode for FlexE client . . . . . . . . .   6
       3.2.2.  Configuration of FlexE group  . . . . . . . . . . . .   6
       3.2.3.  Allocate Resources for FlexE Client . . . . . . . . .   7
     3.3.  Control Requirements Derived  . . . . . . . . . . . . . .   7
   4.  Summary . . . . . . . . . . . . . . . . . . . . . . . . . . .   8
   5.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .   8
   6.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   8
   7.  Security Considerations . . . . . . . . . . . . . . . . . . .   8
   8.  References  . . . . . . . . . . . . . . . . . . . . . . . . .   8
     8.1.  Normative References  . . . . . . . . . . . . . . . . . .   8
     8.2.  Informative References  . . . . . . . . . . . . . . . . .   9
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .   9

1.  Introduction

   OIF published the first version of FlexE Implementation Agreement in
   March 2016, aiming to provide a generic mechanism for supporting a
   variety of Ethernet MAC rates that may or may not correspond to any
   existing Ethernet PHY rate.  SG15 in ITU-T has endorsed the OIF FlexE
   data plane and parts of [ITU-T G.872], [ITU-T G.709], [ITU-T G.798]
   and [ITU-T G.8023].  The Recommendations depend on or are based on
   the FlexE data plane.

   This draft is intended to trigger discussion of the FlexE control
   requirements, which can be found in section 2.  What kind of model
   should we employed when configuring FlexE capable equipments, how to
   configure the FlexE group and FlexE client, and what kind of
   parameters do we need to take into consideration when configuring
   FlexE group and FlexE client.  The analysis is based on the
   description in section 7 and 8 of [ITU-T G.8023] and FlexE IA 2.0.

Wang, et al.             Expires January 9, 2020                [Page 2]
Internet-Draft                FlexE control                    July 2019