YANG Data Model for FlexE Interface Management
draft-jiang-ccamp-flexe-yang-00

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Internet Working Group                                        Y. Jiang
Internet-Draft                                                   X. He
Intended status: Standards Track                                Huawei
                                                              W. Cheng
                                                          China Mobile
Expires: September 2019                                  March 1, 2019

              YANG Data Model for FlexE Interface Management
                     draft-jiang-ccamp-flexe-yang-00

Abstract

   This document defines a YANG data model for the configuration of
   FlexE 2.0 interface, and its FlexE clients. The YANG module in this
   document conforms to the Network Management Datastore Architecture
   (NMDA).

Status of this Memo

   This Internet-Draft is submitted in full conformance with the
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   This Internet-Draft will expire on September 1, 2019.

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   Copyright (c) 2019 IETF Trust and the persons identified as the
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   Section 4.e of the Trust Legal Provisions and are provided without
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Table of Contents

   1.   Introduction .............................................. 2
      1.1. Conventions used in this document ...................... 3
      1.2. Terminology ............................................ 3
   2.   YANG model hierarchy for FlexE interface .................. 4
   3.   YANG Module for FlexE interface ........................... 6
   4.   Security Considerations .................................. 12
   5.   IANA Considerations ...................................... 13
   6.   References ............................................... 13
      6.1. Normative References .................................. 13
      6.2. Informative References ................................ 14
   7.   Acknowledgments .......................................... 14

1. Introduction

   The Flex Ethernet (FlexE) 2.0 Implementation Agreement [FLEXE]
   defined by the OIF provides the support of a variety of Ethernet
   MAC rates that may or may not correspond to any existing Ethernet
   PHY rate. This includes MAC rates that are both greater than
   (through bonding) and less than (through sub-rate and
   channelization) the Ethernet PHY rates used to carry FlexE. FlexE
   2.0 further supports the bonding of 200GBASE-R PHYs or the bonding
   of 400GBASE-R PHYs.

   In the FlexE, multiple Ethernet PHYs (each PHY can further consist
   of one or more FlexE Instances) are bonded into a FlexE Group, and
   the total capacity of the FlexE Group is represented as a
   collection of slots (e.g., each slot has a granularity of 5Gbps or
   25Gbps).  Based on their bandwidth needs, FlexE Clients are each
   mapped into one or more slots. The FlexE mechanism operates using a
   calendar consisting of these slots.

   This calendar is partitioned into sub-calendars for each FlexE
   instance. For example, the calendar for a FlexE Group composed of n
   100G PHYs is partitioned into 20n slots (each representing 5Gbps of
   bandwidth when the slot granularity is 5Gbps).

   This document defines a YANG data model for the configuration of a
   Flex Ethernet interface (i.e., FlexE Group). The data model is
   augmented based on the generic interfaces data model as defined in
   [RFC8343], the FlexE attributes are based on the FlexE 2.0

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   Implementation Agreement as specified in [FLEXE]. With the help of
   this YANG module, the FlexE Groups can be managed just as network
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