Analysis for FlexE control
draft-wang-ccamp-flexe-control-analysis-01

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Internet Engineering Task Force                             Q. Wang, Ed.
Internet-Draft                                               X. Niu, Ed.
Intended status: Informational                           ZTE Corporation
Expires: November 23, 2019                                         Y. Xu
                                                                   CAICT
                                                            May 22, 2019

                       Analysis for FlexE control
               draft-wang-ccamp-flexe-control-analysis-01

Abstract

   This document gives some analysis about the control of FlexE.

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   This Internet-Draft will expire on November 23, 2019.

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Wang, et al.            Expires November 23, 2019               [Page 1]
Internet-Draft                FlexE control                     May 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  . . . . . . . . . . . . . . . . .   5
       3.2.2.  Configuration of FlexE group  . . . . . . . . . . . .   6
       3.2.3.  Allocate Resources for Client MAC flows . . . . . . .   6
     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
   architecture according to the analysis 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], which is about
   "Characteristics of equipment functional blocks supporting Flex
   Ethernet interfaces".