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Network Working Group                                           L. Zhang
Internet-Draft                                                  L. Zheng
Intended status: Standards Track                     Huawei Technologies
Expires: May 4, 2017                                           S. Aldrin
                                                                  Google
                                                               G. Mirsky
                                                                Ericsson
                                                        October 31, 2016


YANG Data Model for MPLS-TP Operations, Administration, and Maintenance
                                 (OAM)
                    draft-zhang-mpls-tp-yang-oam-03

Abstract

   The Transport Profile of Multiprotocol Label Switching (MPLS-TP)
   [RFC5921]is a packet-based transport technology based on the MPLS
   Traffic Engineering (MPLS-TE) and pseudowire (PW) data-plane
   architectures.  A comprehensive set of Operations, Administration,
   and Maintenance (OAM) procedures that fulfill the MPLS-TP OAM
   requirements for fault, performance, and protection-switching
   management had been defined.  YANG [RFC6020]is a data definition
   language that was introduced to define the contents of a conceptual
   data store that allows networked devices to be managed using NETCONF
   [RFC6241].  This document presents the YANG Data model for MPLS-TP
   OAM, including the basic functions of Fault Management and
   Performance Monitoring.

Requirements Language

   The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
   "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
   document are to be interpreted as described in RFC 2119 [RFC2119].

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 http://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




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   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 May 4, 2017.

Copyright Notice

   Copyright (c) 2016 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
   (http://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.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Conventions used in this document . . . . . . . . . . . . . .   3
   3.  Design of the Data Model  . . . . . . . . . . . . . . . . . .   4
     3.1.  Maintenance Entity Group (MEG) Configuration  . . . . . .   4
     3.2.  Maintenance Entities (MEs) Configuration  . . . . . . . .   4
     3.3.  MPLS-TP OAM Fault Management And Performance Moinitoring
           Configuration . . . . . . . . . . . . . . . . . . . . . .   6
     3.4.  Display of ME Status  . . . . . . . . . . . . . . . . . .   7
     3.5.  Display of Detect Result  . . . . . . . . . . . . . . . .  10
   4.  MPLS-TP OAM Data Hierarchy  . . . . . . . . . . . . . . . . .  12
   5.  Interaction with other MPLS OAM Tools Models  . . . . . . . .  17
   6.  MPLS-TP OAM YANG module . . . . . . . . . . . . . . . . . . .  17
   7.  Examples  . . . . . . . . . . . . . . . . . . . . . . . . . .  47
   8.  Security Considerations . . . . . . . . . . . . . . . . . . .  47
   9.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  48
   10. Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .  48
   11. References  . . . . . . . . . . . . . . . . . . . . . . . . .  48
     11.1.  Normative References . . . . . . . . . . . . . . . . . .  48
     11.2.  Infomative References  . . . . . . . . . . . . . . . . .  49
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  49

1.  Introduction

   The Transport Profile of Multiprotocol Label Switching (MPLS-TP)
   [RFC5921] is a packet-based transport technology based on the MPLS
   Traffic Engineering (MPLS-TE) and pseudowire (PW) data-plane



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   architectures.  A comprehensive set of Operations, Administration,
   and Maintenance (OAM) procedures that fulfill the MPLS-TP OAM
   requirements for fault, performance, and protection-switching
   management had been defined.  YANG [RFC6020] is a data definition
   language that was introduced to define the contents of a conceptual
   data store that allows networked devices to be managed using NETCONF
   [RFC6241].  This document presents the YANG Data model for MPLS-TP
   OAM, including the basic functions of Fault Management and
   Performance Monitoring.

   The rest of this document is organized as follows.  Section 2
   presents the conventions used in this document.  Section 3 provides
   the design of the MPLS-TP OAM data model in details.  Section 4
   presents the complete data hierarchy of LSP-Ping YANG model.
   Section 5 discusses the interaction between MPLS-TP OAM data model
   and other MPLS tools data models.  Section 6 specifies the YANG
   module and section 7 lists examples which conform to the YANG module
   specified in this document.  Finally, security considerations are
   discussed in Section 8.

2.  Conventions used in this document

   CC - Continuity Check

   CV - Conectivity Verification

   LM - Loss Measurement

   ME - Maintenance Entity

   MEG - Maintenance Entity Group

   MEP - Maintenance Entity Group End Point

   MIP - Maintenance Entity Group Intermediate Point

   PM - Performance Monitoring

   PW - Pseudowire

   DM - Packet Delay Measurement

   AIS - Alarm Indication Signal

   LKR - Lock Report






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3.  Design of the Data Model

   This YANG data model is defined to be used to configure and manage
   MPLS-TP OAM.  Under the top level container mplstp-oam is the
   container meg, which contains the configuration and detect result
   information of multi instances of Maintenance Entity Group (MEG).
   Under meg container, configuration of each Maintenance Entity (ME)
   type are defined in corresponding list for a particular MEG.
   Different OAM function cofiguration are also defined for each MEG.
   The ME status and detect result information is also shown on per MEG
   basis.  In order to facilitate zero-touch experience, this document
   defines a default value of the related detect parameters, such as
   detection intervals, the exp of OAM packet and OAM packet size.

3.1.  Maintenance Entity Group (MEG) Configuration

   The container "meg" holds the configuration and detect result
   information of multi instances of Maintenance Entity Group (MEG).
   Each MEG is indexed by meg-name.  The data hierarchy for MEG
   configuration is presented below:

   module: ietf-mplstpoam
      +--rw mplstp-oam
         +--rw ais-enable?   enable
         +--rw meg* [meg-name]
            +--rw meg-name            string
            +--rw me-type?            me-type
            +--rw meg-id?             string
            +--rw meg-level?          uint8
            +--rw oam-active-state?   active-type


3.2.  Maintenance Entities (MEs) Configuration

   Within a given Maintenance Entity Group there could be one or more
   type of Maintenance Entity (ME), cofiguration of different types of
   MEs are represented in its corresponding list and indexed by its own
   key.The data hierarchy for ME configuration is presented below:

   module: ietf-mplstpoam
      +--rw mplstp-oam
         +--rw ais-enable?   enable
         +--rw meg* [meg-name]
            +--rw meg-name            string
            +--rw me-type?            me-type
            +--rw meg-id?             string
            +--rw meg-level?          uint8
            +--rw oam-active-state?   active-type



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            +--rw pw* [local-peer-ip local-vc-id local-vc-type
            remote-peer-ip remote-vc-id remote-vc-type]
            |  +--rw local-peer-ip     inet:ip-address
            |  +--rw local-vc-id       uint32
            |  +--rw local-vc-type     vc-type
            |  +--rw remote-peer-ip    inet:ip-address
            |  +--rw remote-vc-id      uint32
            |  +--rw remote-vc-type    vc-type
            |  +--rw mep-id?           uint16
            |  +--rw remote-mep-id?    uint16
            |  +--rw vll-ttl?          uint8
            |  +--rw gal-enable?       enable
            |  +--rw gal-mode?         gal-mode
            +--rw lsp* [tunnel-name tunnel-id ingress-lsr-id]
            |  +--rw tunnel-name               string
            |  +--rw tunnel-id                 uint32
            |  +--rw ingress-lsr-id            inet:ip-address
            |  +--rw mep-id?                   uint16
            |  +--rw remote-mep-id?            uint16
            |  +--rw reverse-tunnel-name       string
            |  +--rw reverse-tunnel-id?        uint16
            |  +--rw reverse-ingress-lsr-id?   inet:ip-address
            |  +--rw tunnel-description?       string
            |  +--rw tunnel-type?              tunnel-type
            |  +--rw tunnel-direction?         tunnel-direction-type
            +--rw section* [section-id]
            |  +--rw section-id       uint64
            |  +--rw if-name?         string
            |  +--rw peer-ip          inet:ip-address
            |  +--rw peer-lsr-id?     inet:ip-address
            |  +--rw mep-id?          uint16
            |  +--rw remote-mep-id?   uint16
            +--rw pw-spme* [local-peer-ip local-vc-id switch-peer-ip
            switch-vc-id vc-type instance-name]
            |  +--rw local-peer-ip     inet:ip-address
            |  +--rw local-vc-id       uint32
            |  +--rw switch-peer-ip    inet:ip-address
            |  +--rw switch-vc-id      uint32
            |  +--rw vc-type           vc-type
            |  +--rw instance-name     string
            +--rw lsp-spme* [tunnel-id local-lsr-id remote-lsr-id]
            |  +--rw tunnel-id        uint32
            |  +--rw local-lsr-id     inet:ip-address
            |  +--rw remote-lsr-id    inet:ip-address







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3.3.  MPLS-TP OAM Fault Management And Performance Moinitoring
      Configuration

   Different OAM function cofiguration are also defined for each MEG.
   The data hierarchy for OAM fuction configuration is presented below:

   module: ietf-mplstpoam
      +--rw mplstp-oam
         +--rw ais-enable?   enable
         +--rw meg* [meg-name]
            +--rw meg-name            string
            +--rw me-type?            me-type
            +--rw meg-id?             string
            +--rw meg-level?          uint8
            +--rw oam-active-state?   active-type
            +--rw pw* [local-peer-ip local-vc-id local-vc-type
            remote-peer-ip remote-vc-id remote-vc-type]
            ...
            +--rw lsp* [tunnel-name tunnel-id ingress-lsr-id]
            ...
            +--rw section* [section-id]
            |  +--rw section-id       uint64
            |  +--rw if-name?         string
            |  +--rw peer-ip          inet:ip-address
            |  +--rw peer-lsr-id?     inet:ip-address
            |  +--rw mep-id?          uint16
            |  +--rw remote-mep-id?   uint16
            +--rw pw-spme* [local-peer-ip local-vc-id switch-peer-ip
            switch-vc-id vc-type instance-name]
            ...
            +--rw lsp-spme* [tunnel-id local-lsr-id remote-lsr-id]
            ...
            +--rw cc
            |  +--rw cc-session-mode?            cc-session-mode
            |  +--rw cc-authentication-enable?   enable
            |  +--rw cc-exp?                     uint8
            |  +--rw cc-transmit-interval?       cc-interval
            |  +--rw cc-recieve-interval?        cc-interval
            |  +--rw cc-detect-multiplier?       cc-detect-multiplier
            |  +--rw cc-enable?                  enable
            +--rw cv
            |  +--rw cv-session-mode?            cc-session-mode
            |  +--rw cv-authentication-enable?   enable
            |  +--rw cv-exp?                     uint8
            |  +--rw cv-interval?                cv-interval
            |  +--rw cv-detect-multiplier?       cv-detect-multiplier
            |  +--rw cv-enable?                  enable
            +--rw ais



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            |  +--rw ais-exp?        uint8
            |  +--rw ais-interval?   ais-interval
            +--rw lkr
            |  +--rw lkr-exp?        uint8
            |  +--rw lkr-interval?   lkr-interval
            |  +--rw lkr-enable?     enable
            +--rw one-way-dm-send
            |  +--rw one-dm-send-enable?   enable
            |  +--rw one-dm-interval?      dm-interval
            |  +--rw one-dm-exp?           uint8
            |  +--rw one-dm-packet-size?   uint16
            |  +--rw one-dm-pad-value?     dm-padding-value
            +--rw one-way-dm-rcv
            |  +--rw onr-dm-rcv-enable?        enable
            |  +--rw one-dm-rcv-enable-type?   one-way-rcv-type
            +--rw two-way-dm-send
            |  +--rw two-dm-send-enable?   enable
            |  +--rw two-dm-interval?      dm-interval
            |  +--rw two-dm-exp?           uint8
            |  +--rw two-dm-packet-size?   uint16
            |  +--rw two-dm-pad-value?     dm-padding-value
            |  +--rw two-dm-time-stamp?    enable
            +--rw two-way-dm-rcv
            |  +--rw two-dm-rcv-enable?   enable
            +--rw single-lm-send
            |  +--rw slm-send-enable?   enable
            |  +--rw slm-interval?      lm-interval
            |  +--rw slm-exp?           uint8
            +--rw single-lm-rcv
            |  +--rw slm-rcv-enable?   enable
            +--rw dual-lm
            |  +--rw dlm-enable?   enable


3.4.  Display of ME Status

   The data hierarchy for display of ME status is presented below:

   module: ietf-mplstpoam
      +--rw mplstp-oam
         +--rw ais-enable?   enable
         +--rw meg* [meg-name]
            +--rw meg-name            string
            +--rw me-type?            me-type
            +--rw meg-id?             string
            +--rw meg-level?          uint8
            +--rw oam-active-state?   active-type
            +--rw pw* [local-peer-ip local-vc-id local-vc-type



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            remote-peer-ip remote-vc-id remote-vc-type]
            ...
            +--rw lsp* [tunnel-name tunnel-id ingress-lsr-id]
            ...
            +--rw section* [section-id]
            ...
            +--rw pw-spme* [local-peer-ip local-vc-id switch-peer-ip
            switch-vc-id vc-type instance-name]
            ...
            +--rw lsp-spme* [tunnel-id local-lsr-id remote-lsr-id]
            ...
            +--rw cc
            ...
            +--rw cv
            ...
            +--rw ais
            ...
            +--rw lkr
            ...
            +--rw one-way-dm-send
            ...
            +--rw one-way-dm-rcv
            ...
            +--rw two-way-dm-send
            ...
            +--rw two-way-dm-rcv
            ...
            +--rw single-lm-send
            ...
            +--rw single-lm-rcv
            ...
            +--rw dual-lm
            ...
            +--ro status-info
            |  +--ro pw*
            |  |  +--ro me-index?                 uint32
            |  |  +--ro me-direction?             me-direction
            |  |  +--ro me-state?                 me-state
            |  |  +--ro local-state?              me-state
            |  |  +--ro remote-state?             me-state
            |  |  +--ro alarm-indicate?           string
            |  |  +--ro local-defect-status?      defect-status-type
            |  |  +--ro local-invalid-time?       uint32
            |  |  +--ro local-defect-location?    string
            |  |  +--ro local-defect-type?        defect-type
            |  |  +--ro remote-defect-status?     defect-status-type
            |  |  +--ro remote-invalid-time?      uint32
            |  |  +--ro remote-defect-location?   string



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            |  |  +--ro remote-defect-type?       defect-type
            |  +--ro lsp*
            |  |  +--ro me-index?                 uint32
            |  |  +--ro me-direction?             me-direction
            |  |  +--ro me-state?                 me-state
            |  |  +--ro local-state?              me-state
            |  |  +--ro remote-state?             me-state
            |  |  +--ro alarm-indicate?           string
            |  |  +--ro local-defect-status?      defect-status-type
            |  |  +--ro local-invalid-time?       uint32
            |  |  +--ro local-defect-location?    string
            |  |  +--ro local-defect-type?        defect-type
            |  |  +--ro remote-defect-status?     defect-status-type
            |  |  +--ro remote-invalid-time?      uint32
            |  |  +--ro remote-defect-location?   string
            |  |  +--ro remote-defect-type?       defect-type
            |  |  +--ro me-index-egress?          uint32
            |  |  +--ro me-direct-egress?         me-direction
            |  |  +--ro status-board-egress?      string
            |  |  +--ro state-egress?             me-state
            |  |  +--ro alarm-egress?             string
            |  +--ro section*
            |  |  +--ro me-index?                 uint32
            |  |  +--ro me-direction?             me-direction
            |  |  +--ro me-state?                 me-state
            |  |  +--ro local-state?              me-state
            |  |  +--ro remote-state?             me-state
            |  |  +--ro alarm-indicate?           string
            |  |  +--ro local-defect-status?      defect-status-type
            |  |  +--ro local-invalid-time?       uint32
            |  |  +--ro local-defect-location?    string
            |  |  +--ro local-defect-type?        defect-type
            |  |  +--ro remote-defect-status?     defect-status-type
            |  |  +--ro remote-invalid-time?      uint32
            |  |  +--ro remote-defect-location?   string
            |  |  +--ro remote-defect-type?       defect-type
            |  +--ro pw-spme*
            |  |  +--ro me-index?       uint32
            |  |  +--ro me-direction?   me-direction
            |  |  +--ro me-state?       me-state
            |  |  +--ro mip-id?         uint16
            |  +--ro lsp-spme*
            |     +--ro me-index?       uint32
            |     +--ro me-direction?   me-direction
            |     +--ro me-state?       me-state
            |     +--ro mip-id?         uint16





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3.5.  Display of Detect Result

   The data hierarchy for display of detect result is presented below:

   module: ietf-mplstpoam
      +--rw mplstp-oam
         +--rw ais-enable?   enable
         +--rw meg* [meg-name]
            +--rw meg-name            string
            +--rw me-type?            me-type
            +--rw meg-id?             string
            +--rw meg-level?          uint8
            +--rw oam-active-state?   active-type
            +--rw pw* [local-peer-ip local-vc-id local-vc-type
            remote-peer-ip remote-vc-id remote-vc-type]
            ...
            +--rw lsp* [tunnel-name tunnel-id ingress-lsr-id]
            ...
            +--rw section* [section-id]
            ...
            +--rw pw-spme* [local-peer-ip local-vc-id switch-peer-ip
            switch-vc-id vc-type instance-name]
            ...
            +--rw lsp-spme* [tunnel-id local-lsr-id remote-lsr-id]
            ...
            +--rw cc
            ...
            +--rw cv
            ...
            +--rw ais
            ...
            +--rw lkr
            ...
            +--rw one-way-dm-send
            ...
            +--rw one-way-dm-rcv
            ...
            +--rw two-way-dm-send
            ...
            +--rw two-way-dm-rcv
            ...
            +--rw single-lm-send
            ...
            +--rw single-lm-rcv
            ...
            +--rw dual-lm
            ...
            +--ro status-info



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            ...
            +--ro detect-result
               +--ro one-way-dm-result
               |  +--ro send-pkt-num?      uint32
               |  +--ro recv-pkt-num?      uint32
               |  +--ro delay-min?         uint32
               |  +--ro delay-max?         uint32
               |  +--ro delay-avg?         uint32
               |  +--ro jitter-min?        uint32
               |  +--ro jitter-max?        uint32
               |  +--ro jitter-avg?        uint32
               |  +--ro one-way-dm-data
               |     +--ro one-way-dm-data* [index]
               |        +--ro index            uint32
               |        +--ro one-delay?       uint32
               |        +--ro one-delay-var?   uint32
               |        +--ro error-info?      error-info
               +--ro one-way-send-result
               |  +--ro measure-mode?   measure-mode
               |  +--ro status?         statistics-status
               +--ro two-way-dm-result
               |  +--ro measure-mode?      measure-mode
               |  +--ro status?            statistics-status
               |  +--ro send-pkt-num?      uint32
               |  +--ro rcv-pkt-num?       uint32
               |  +--ro delay-min?         uint32
               |  +--ro delay-max?         uint32
               |  +--ro delay-avg?         uint32
               |  +--ro jitter-min?        uint32
               |  +--ro jitter-max?        uint32
               |  +--ro jitter-avg?        uint32
               |  +--ro two-way-dm-data
               |     +--ro two-way-dm-data* [index]
               |        +--ro index            uint32
               |        +--ro two-delay?       uint32
               |        +--ro two-delay-var?   uint32
               |        +--ro error-info?      error-info
               +--ro single-lm-result
               |  +--ro measure-mode?         measure-mode
               |  +--ro status?               statistics-status
               |  +--ro send-pkt-num?         uint32
               |  +--ro rcv-pkt-num?          uint32
               |  +--ro rmt-loss-ratio-min?   uint32
               |  +--ro rmt-loss-ratio-max?   uint32
               |  +--ro rmt-loss-atio-avg?    uint32
               |  +--ro rmt-loss-count-min?   uint32
               |  +--ro rmt-loss-count-max?   uint32
               |  +--ro rmt-loss-count-avg?   uint32



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               |  +--ro single-lm-data
               |     +--ro single-lm-data* [index]
               |        +--ro index               uint32
               |        +--ro slm-loss-lcl?       uint32
               |        +--ro slm-loss-lcl-rat?   string
               |        +--ro slm-loss-rmt?       uint32
               |        +--ro slm-loss-rmt-rat?   string
               |        +--ro error-info?         error-info
               +--ro dual-lm-data
                  +--ro dual-lm-data* [index]
                     +--ro index               uint32
                     +--ro dlm-Loss-lcl?       uint32
                     +--ro dlm-loss-lcl-rat?   string
                     +--ro dlm-loss-rmt?       uint32
                     +--ro dlm-loss-rmt-rat?   string
                     +--ro error-info?         error-info

4.  MPLS-TP OAM Data Hierarchy

   The complete data hierarchy related to the MPLS-TP OAM YANG model is
   presented below.

   module: ietf-mplstpoam
      +--rw mplstp-oam
         +--rw ais-enable?   enable
         +--rw meg* [meg-name]
            +--rw meg-name            string
            +--rw me-type?            me-type
            +--rw meg-id?             string
            +--rw meg-level?          uint8
            +--rw oam-active-state?   active-type
            +--rw pw* [local-peer-ip local-vc-id local-vc-type
            remote-peer-ip remote-vc-id remote-vc-type]
            |  +--rw local-peer-ip     inet:ip-address
            |  +--rw local-vc-id       uint32
            |  +--rw local-vc-type     vc-type
            |  +--rw remote-peer-ip    inet:ip-address
            |  +--rw remote-vc-id      uint32
            |  +--rw remote-vc-type    vc-type
            |  +--rw mep-id?           uint16
            |  +--rw remote-mep-id?    uint16
            |  +--rw vll-ttl?          uint8
            |  +--rw gal-enable?       enable
            |  +--rw gal-mode?         gal-mode
            +--rw lsp* [tunnel-name tunnel-id ingress-lsr-id]
            |  +--rw tunnel-name               string
            |  +--rw tunnel-id                 uint32
            |  +--rw ingress-lsr-id            inet:ip-address



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            |  +--rw mep-id?                   uint16
            |  +--rw remote-mep-id?            uint16
            |  +--rw reverse-tunnel-name       string
            |  +--rw reverse-tunnel-id?        uint16
            |  +--rw reverse-ingress-lsr-id?   inet:ip-address
            |  +--rw tunnel-description?       string
            |  +--rw tunnel-type?              tunnel-type
            |  +--rw tunnel-direction?         tunnel-direction-type
            +--rw section* [section-id]
            |  +--rw section-id       uint64
            |  +--rw if-name?         string
            |  +--rw peer-ip          inet:ip-address
            |  +--rw peer-lsr-id?     inet:ip-address
            |  +--rw mep-id?          uint16
            |  +--rw remote-mep-id?   uint16
            +--rw pw-spme* [local-peer-ip local-vc-id switch-peer-ip
            switch-vc-id vc-type instance-name]
            |  +--rw local-peer-ip     inet:ip-address
            |  +--rw local-vc-id       uint32
            |  +--rw switch-peer-ip    inet:ip-address
            |  +--rw switch-vc-id      uint32
            |  +--rw vc-type           vc-type
            |  +--rw instance-name     string
            +--rw lsp-spme* [tunnel-id local-lsr-id remote-lsr-id]
            |  +--rw tunnel-id        uint32
            |  +--rw local-lsr-id     inet:ip-address
            |  +--rw remote-lsr-id    inet:ip-address
            +--rw cc
            |  +--rw cc-session-mode?            cc-session-mode
            |  +--rw cc-authentication-enable?   enable
            |  +--rw cc-exp?                     uint8
            |  +--rw cc-transmit-interval?       cc-interval
            |  +--rw cc-recieve-interval?        cc-interval
            |  +--rw cc-detect-multiplier?       cc-detect-multiplier
            |  +--rw cc-enable?                  enable
            +--rw cv
            |  +--rw cv-session-mode?            cc-session-mode
            |  +--rw cv-authentication-enable?   enable
            |  +--rw cv-exp?                     uint8
            |  +--rw cv-interval?                cv-interval
            |  +--rw cv-detect-multiplier?       cv-detect-multiplier
            |  +--rw cv-enable?                  enable
            +--rw ais
            |  +--rw ais-exp?        uint8
            |  +--rw ais-interval?   ais-interval
            +--rw lkr
            |  +--rw lkr-exp?        uint8
            |  +--rw lkr-interval?   lkr-interval



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            |  +--rw lkr-enable?     enable
            +--rw one-way-dm-send
            |  +--rw one-dm-send-enable?   enable
            |  +--rw one-dm-interval?      dm-interval
            |  +--rw one-dm-exp?           uint8
            |  +--rw one-dm-packet-size?   uint16
            |  +--rw one-dm-pad-value?     dm-padding-value
            +--rw one-way-dm-rcv
            |  +--rw onr-dm-rcv-enable?        enable
            |  +--rw one-dm-rcv-enable-type?   one-way-rcv-type
            +--rw two-way-dm-send
            |  +--rw two-dm-send-enable?   enable
            |  +--rw two-dm-interval?      dm-interval
            |  +--rw two-dm-exp?           uint8
            |  +--rw two-dm-packet-size?   uint16
            |  +--rw two-dm-pad-value?     dm-padding-value
            |  +--rw two-dm-time-stamp?    enable
            +--rw two-way-dm-rcv
            |  +--rw two-dm-rcv-enable?   enable
            +--rw single-lm-send
            |  +--rw slm-send-enable?   enable
            |  +--rw slm-interval?      lm-interval
            |  +--rw slm-exp?           uint8
            +--rw single-lm-rcv
            |  +--rw slm-rcv-enable?   enable
            +--rw dual-lm
            |  +--rw dlm-enable?   enable
            +--ro status-info
            |  +--ro pw*
            |  |  +--ro me-index?                 uint32
            |  |  +--ro me-direction?             me-direction
            |  |  +--ro me-state?                 me-state
            |  |  +--ro local-state?              me-state
            |  |  +--ro remote-state?             me-state
            |  |  +--ro alarm-indicate?           string
            |  |  +--ro local-defect-status?      defect-status-type
            |  |  +--ro local-invalid-time?       uint32
            |  |  +--ro local-defect-location?    string
            |  |  +--ro local-defect-type?        defect-type
            |  |  +--ro remote-defect-status?     defect-status-type
            |  |  +--ro remote-invalid-time?      uint32
            |  |  +--ro remote-defect-location?   string
            |  |  +--ro remote-defect-type?       defect-type
            |  +--ro lsp*
            |  |  +--ro me-index?                 uint32
            |  |  +--ro me-direction?             me-direction
            |  |  +--ro me-state?                 me-state
            |  |  +--ro local-state?              me-state



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            |  |  +--ro remote-state?             me-state
            |  |  +--ro alarm-indicate?           string
            |  |  +--ro local-defect-status?      defect-status-type
            |  |  +--ro local-invalid-time?       uint32
            |  |  +--ro local-defect-location?    string
            |  |  +--ro local-defect-type?        defect-type
            |  |  +--ro remote-defect-status?     defect-status-type
            |  |  +--ro remote-invalid-time?      uint32
            |  |  +--ro remote-defect-location?   string
            |  |  +--ro remote-defect-type?       defect-type
            |  |  +--ro me-index-egress?          uint32
            |  |  +--ro me-direct-egress?         me-direction
            |  |  +--ro status-board-egress?      string
            |  |  +--ro state-egress?             me-state
            |  |  +--ro alarm-egress?             string
            |  +--ro section*
            |  |  +--ro me-index?                 uint32
            |  |  +--ro me-direction?             me-direction
            |  |  +--ro me-state?                 me-state
            |  |  +--ro local-state?              me-state
            |  |  +--ro remote-state?             me-state
            |  |  +--ro alarm-indicate?           string
            |  |  +--ro local-defect-status?      defect-status-type
            |  |  +--ro local-invalid-time?       uint32
            |  |  +--ro local-defect-location?    string
            |  |  +--ro local-defect-type?        defect-type
            |  |  +--ro remote-defect-status?     defect-status-type
            |  |  +--ro remote-invalid-time?      uint32
            |  |  +--ro remote-defect-location?   string
            |  |  +--ro remote-defect-type?       defect-type
            |  +--ro pw-spme*
            |  |  +--ro me-index?       uint32
            |  |  +--ro me-direction?   me-direction
            |  |  +--ro me-state?       me-state
            |  |  +--ro mip-id?         uint16
            |  +--ro lsp-spme*
            |     +--ro me-index?       uint32
            |     +--ro me-direction?   me-direction
            |     +--ro me-state?       me-state
            |     +--ro mip-id?         uint16
            +--ro detect-result
               +--ro one-way-dm-result
               |  +--ro send-pkt-num?      uint32
               |  +--ro recv-pkt-num?      uint32
               |  +--ro delay-min?         uint32
               |  +--ro delay-max?         uint32
               |  +--ro delay-avg?         uint32
               |  +--ro jitter-min?        uint32



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               |  +--ro jitter-max?        uint32
               |  +--ro jitter-avg?        uint32
               |  +--ro one-way-dm-data
               |     +--ro one-way-dm-data* [index]
               |        +--ro index            uint32
               |        +--ro one-delay?       uint32
               |        +--ro one-delay-var?   uint32
               |        +--ro error-info?      error-info
               +--ro one-way-send-result
               |  +--ro measure-mode?   measure-mode
               |  +--ro status?         statistics-status
               +--ro two-way-dm-result
               |  +--ro measure-mode?      measure-mode
               |  +--ro status?            statistics-status
               |  +--ro send-pkt-num?      uint32
               |  +--ro rcv-pkt-num?       uint32
               |  +--ro delay-min?         uint32
               |  +--ro delay-max?         uint32
               |  +--ro delay-avg?         uint32
               |  +--ro jitter-min?        uint32
               |  +--ro jitter-max?        uint32
               |  +--ro jitter-avg?        uint32
               |  +--ro two-way-dm-data
               |     +--ro two-way-dm-data* [index]
               |        +--ro index            uint32
               |        +--ro two-delay?       uint32
               |        +--ro two-delay-var?   uint32
               |        +--ro error-info?      error-info
               +--ro single-lm-result
               |  +--ro measure-mode?         measure-mode
               |  +--ro status?               statistics-status
               |  +--ro send-pkt-num?         uint32
               |  +--ro rcv-pkt-num?          uint32
               |  +--ro rmt-loss-ratio-min?   uint32
               |  +--ro rmt-loss-ratio-max?   uint32
               |  +--ro rmt-loss-atio-avg?    uint32
               |  +--ro rmt-loss-count-min?   uint32
               |  +--ro rmt-loss-count-max?   uint32
               |  +--ro rmt-loss-count-avg?   uint32
               |  +--ro single-lm-data
               |     +--ro single-lm-data* [index]
               |        +--ro index               uint32
               |        +--ro slm-loss-lcl?       uint32
               |        +--ro slm-loss-lcl-rat?   string
               |        +--ro slm-loss-rmt?       uint32
               |        +--ro slm-loss-rmt-rat?   string
               |        +--ro error-info?         error-info
               +--ro dual-lm-data



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                  +--ro dual-lm-data* [index]
                     +--ro index               uint32
                     +--ro dlm-Loss-lcl?       uint32
                     +--ro dlm-loss-lcl-rat?   string
                     +--ro dlm-loss-rmt?       uint32
                     +--ro dlm-loss-rmt-rat?   string
                     +--ro error-info?         error-info


5.  Interaction with other MPLS OAM Tools Models

   TBA.

6.  MPLS-TP OAM YANG module

   <CODE BEGINS> file "ietf-mplstpoam@2015-07-02.yang"
   module ietf-mplstpoam {
     namespace "urn:ietf:params:xml:ns:yang:ietf-mplstpoam";
     //namespace need to be assigned by IANA
     prefix "mplstpoam";
     import ietf-inet-types {
     prefix inet;
     }
     organization "IETF MPLS Working Group";
     contact "draft-zhang-mpls-tp-yang-oam";
     description "MPLS TP OAM Yang Module";
     revision "2015-07-02" {
       description "01 revision";
       reference "draft-zhang-mpls-tp-yang-oam";
     }

     typedef enable {
       type boolean;
       description "enable";
     }
     typedef me-type {
       type enumeration {
         enum "none" {
           value 0;
           description "ME type is not assigned.";
         }
         enum "section" {
           value 1;
           description "ME type is MPLS-TP Sections (between MPLS
           LSRs).";
         }
         enum "lsp" {
           value 2;



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           description "ME type is an end-to-end LSP (between LERs).";
         }
         enum "pw" {
           value 3;
           description "ME type is an end-to-end Single-Segment
           Pseudowire (SS-PW) or MS-PW (between T-PEs).";
         }
         enum "lsp-spme" {
           value 4;
           description "ME type is an SPME (between a given pair
           of LERs and/or LSRs along an LSP).";
         }
         enum "pw-spme" {
           value 5;
           description "ME type is an SPME (between a given pair
           of T-PEs and/or S-PEs along an (MS-)PW).";
         }
       }
       description "ME type";
     }
     typedef cc-session-mode {
       type enumeration {
         enum "coordinated" {
           value 0;
           description "coordinated";
         }
         enum "independent" {
           value 1;
           description "independent";
         }
       }
       description "CC session mode";
     }
     typedef cc-interval {
       type uint32{
         range "1..65535";
       }
       description "The value rang for cc packet transmit and receive
       interval.";
     }
     typedef cv-interval {
       type uint32 {
         range "1..65535";
       }
       description "The value rang for cv packet transmit interval.";
     }
     typedef cc-detect-multiplier {
       type uint8{



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         range "1..255";
       }
       description "The value rang for cv packet detect multiplier";
     }
     typedef cv-detect-multiplier {
       type uint8{
         range "1..255";
       }
       description "The value rang for cv packet detect multiplier";
     }
     typedef lkr-interval {
       type enumeration {
         enum "interval1000ms" {
           value 0;
           description "1000ms";
         }
         enum "interval60000ms" {
           value 1;
           description "60000ms";
         }
       }
       description "lkr-interval";
     }
     typedef ais-interval {
       type enumeration {
         enum "interval1000ms" {
           value 0;
           description "1000ms";
         }
         enum "interval60000ms" {
           value 1;
           description "60000ms";
         }
       }
       description "ais-interval";
     }
     typedef me-direction {
       type enumeration {
         enum "ingress" {
           value 0;
           description "The direction to the ME is ingress";
         }
         enum "egress" {
           value 1;
           description "The direction to the ME is egress";
         }
         enum "dual" {
           value 2;



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           description "The direction to the ME is dual";
         }
         enum "none" {
           value 3;
           description "The direction to the ME is none";
         }
       }
       description "me-direction";
     }
     typedef me-state {
       type enumeration {
         enum "init" {
           value 0;
           description "The me state is init";
         }
         enum "down" {
           value 1;
           description "The me state is down";
         }
         enum "up" {
           value 2;
           description "The me state is up";
         }
       }
       description "me-state";
     }
     typedef dm-interval {
       type uint32 {
         range "1..65535";
       }
       description "The value rang for dm packet transmit interval";
     }
     typedef dm-padding-value {
       type enumeration {
         enum "paddingvalue0" {
           value 0;
           description "0";
         }
         enum "paddingvalue1" {
           value 1;
           description "1";
         }
       }
       description "dm-padding-value";
     }
     typedef lm-interval {
       type uint32 {
         range "1..65535";



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       }
       description "The value rang for lm packet transmit interval";
     }
     typedef measure-mode {
       type enumeration {
         enum "on-demand" {
           value 0;
           description "on-demand";
         }
         enum "proactive" {
           value 1;
           description "proactive";
         }
       }
       description "measure mode";
     }
     typedef vc-type {
       type uint16 {
         range "1..65535";
       }
       description "The namespace of the vc type of pw";
     }
     typedef statistics-status {
       type enumeration {
         enum "finished" {
           value 0;
           description "finished";
         }
         enum "working" {
           value 1;
           description "working";
         }
       }
       description "statistics status";
     }
     typedef error-info {
       type enumeration {
         enum "valid" {
           value 0;
           description "valid";
         }
         enum "invalid-loss" {
           value 1;
           description "invalid-loss";
         }
         enum "invalid-delay" {
           value 2;
           description "invalid-delay";



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         }
       }
       description "error-info";
     }
     typedef defect-status-type {
       type string {
         length "1..8191";
       }
       description "The namespace of defect status type";
     }
     typedef defect-type {
       type string {
         length "1..8191";
       }
       description "The namespace of defect type";
     }
     typedef tunnel-type {
       type enumeration {
         enum "ingress" {
           value 0;
           description "ingress";
         }
         enum "egress" {
           value 1;
           description "egress";
         }
         enum "bidirectional" {
           value 2;
           description "bidirectional";
         }
       }
       description "tunnel type";
     }
     typedef tunnel-direction-type {
       type enumeration {
         enum "unidirectional" {
           value 0;
           description "unidirectional";
         }
         enum "bidirectional" {
           value 1;
           description "bidirectional";
         }
       }
       description "tunnel direction type";
     }
     typedef active-type {
       type enumeration {



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         enum "deactive" {
           value 0;
           description "deactive";
         }
         enum "active" {
           value 1;
           description "active";
         }
       }
       description "active-type";
     }
     typedef gal-mode {
       type enumeration {
         enum "with-13" {
           value 0;
           description "Gal mode is with label 13";
         }
         enum "without-13" {
           value 1;
           description "Gal mode is without label 13";
         }
       }
       description "gal mode";
     }
     typedef one-way-rcv-type {
       type enumeration {
         enum "on-demand" {
           value 0;
           description "The switch of receive eanble takes effect
           on-demand one-way delay-measure";
         }
         enum "proactive" {
           value 1;
           description "The switch of receive eanble takes effect
           proactive one-way delay-measure";
         }
       }
       description "one way receive type";
     }
     grouping pw {
       leaf local-peer-ip {
         type inet:ip-address;
         mandatory "true";
         description "This object indicates the peer IP address";
       }
       leaf local-vc-id {
         type uint32 {
           range "1..4294967295";



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         }
         mandatory "true";
         description "This object indicates the vc ID of PW
         type ME";
       }
       leaf local-vc-type {
         type vc-type;
         mandatory "true";
         description "This object indicates the vc type of VC
         type ME";
       }
       leaf remote-peer-ip {
         type inet:ip-address;
         description "This object indicates the remote peer IP of
         PW type ME";
       }
       leaf remote-vc-id {
         type uint32 {
           range "1..4294967295";
         }
         description "This object indicates the remote vc ID of
         PW type ME";
       }
       leaf remote-vc-type {
         type vc-type;
         description "This object indicates the remote vc type of
         PW type ME";
       }
       description "pw";
     }
     grouping lsp {
       leaf tunnel-name  {
         type string {
           length "0..63";
         }
         mandatory "true";
         description "The object indicates the name of tunnel";
       }
       leaf tunnel-id {
         type uint32 {
           range "1..65535";
         }
         description "The object indicates the tunnel id";
       }
       leaf ingress-lsr-id {
         type inet:ip-address;
         description "The object indicates the ingress LSR-ID";
       }



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       description "lsp";
     }
     grouping pw-spme {
       leaf local-peer-ip {
         type inet:ip-address;
         mandatory "true";
         description "This object indicates the peer IP address of
         PW type MIP";
       }
       leaf local-vc-id {
         type uint32 {
           range "1..4294967295";
         }
         mandatory "true";
         description "This object indicates the vc ID of PW type MIP";
       }
       leaf switch-peer-ip {
         type inet:ip-address;
         mandatory "true";
         description "This object indicates the peer IP address of
         PW switch node";
       }
       leaf switch-vc-id {
         type uint32 {
           range "1..4294967295";
         }
         mandatory "true";
         description "This object indicates the vc id of PW switch
         node";
       }
       leaf vc-type {
         type vc-type;
         mandatory "true";
         description "This object indicates the vc type of PW type MIP";
       }
       leaf instance-name {
         type string {
           length "1..31";
         }
         mandatory "true";
         description "This object specifies the VPWS instance name";
       }
       description "pw spme";
     }
     grouping me-detect-status {
       leaf me-index {
         type uint32 {
           range "1..65535";



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         }
         description "The object indicates the index of ME";
       }
       leaf me-direction {
         type me-direction;
         description "The object indicates the direction of ME";
       }
       leaf me-state {
         type me-state;
         description "The object indicates the state of ME";
       }
       leaf local-state {
         type me-state;
         description "The object indicates the local status of ME";
       }
       leaf remote-state {
         type me-state;
         description "The object indicates the remote state of ME";
       }
       leaf alarm-indicate {
         type string {
           length "1..26";
         }
         description "The object indicates the alarm of ME";
       }
       leaf local-defect-status {
         type defect-status-type;
         default "init";
         description "This object indicates the local defect status";
       }
       leaf local-invalid-time {
         type uint32 {
           range "0..4294967295";
         }
         description "This object indicates the invalid Time of
         local detect";
       }
       leaf local-defect-location {
         type string {
           length "1..32";
         }
         description "This object indicates the local defect location";
       }
       leaf local-defect-type {
         type defect-type;
         description "This object indicates the local defect type";
       }
       leaf remote-defect-status {



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         type defect-status-type;
         default "init";
         description "This object indicates the remote defect status";
       }
       leaf remote-invalid-time {
         type uint32 {
           range "0..4294967295";
         }
         description "This object indicates the invalid Time of
         remote detect";
       }
       leaf remote-defect-location {
         type string {
           length "1..32";
         }
         description "This object indicates the remote defect location";
       }
       leaf remote-defect-type {
         type defect-type;
         description "This object indicates the remote defect type";
       }
       description "This node indicate detect status of ME";
     }
     grouping gal-set {
       leaf gal-enable {
         type enable;
         default "true";
         description "This object indicates the gal flag";
       }
       leaf gal-mode {
         type gal-mode;
         description "This object indicates the gal flag";
       }
       description "This object indicates the gal set";
     }

     container mplstp-oam {
       description "Top level container.";
       leaf ais-enable {
         type enable;
         default "false";
         description "This object indicates the global ais flag
         of mpls-tp oam";
       }

       list meg {
         key "meg-name";
         description "meg multi instances.";



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         leaf meg-name {
           type string {
             length "1..14";
           }
           mandatory "true";
           description "The object indicates the name of MEG";
         }
         leaf me-type {
           type me-type;
           default "none";
           description "The object indicates the type of ME";
         }
         leaf meg-id {
           type string {
             length "1..96";
           }
           description "The object indicates the ID of MEG";
         }
         leaf meg-level {
           type uint8 {
             range "0..7";
           }
           default "7";
           description "The object indicates the level of MEG";
         }
         leaf oam-active-state {
           type active-type;
           default "deactive";
           description "This object indicates the oam active state";
         }

         list pw {
           key "local-peer-ip local-vc-id local-vc-type remote-peer-ip
           remote-vc-id remote-vc-type";
           description "PW";
           uses pw;
           leaf mep-id {
             type uint16 {
               range "1..8191";
             }
             description "This object indicates the MEP Id of local ME";
           }
           leaf remote-mep-id {
             type uint16 {
               range "1..8191";
             }
             description "This object indicates the MEP Id of remote
              ME";



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           }
           leaf vll-ttl {
             type uint8 {
               range "1..255";
             }
             description "This object indicates the VLL ttl of PW
             type ME";
           }
           uses gal-set;
         }

         list lsp {
           key "tunnel-name tunnel-id ingress-lsr-id";
           description "LSP";
           uses lsp;
           leaf mep-id {
             type uint16 {
               range "1..8191";
             }
             description "This object indicates the MEP Id of
             local ME";
           }
           leaf remote-mep-id {
             type uint16 {
               range "1..8191";
             }
             description "This object indicates the MEP Id of
             remote ME";
           }
           leaf reverse-tunnel-name {
             type string {
               length "0..63";
             }
             mandatory "true";
             description "The object indicates the name of
             reverse tunnel";
           }
           leaf reverse-tunnel-id {
             type uint16 {
               range "1..65535";
             }
             description "The object indicates the ingress
             reverse tunnelId";
           }
           leaf reverse-ingress-lsr-id {
             type inet:ip-address;
             description "The object indicates the ingress
             reverse LSR-ID";



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           }
           leaf tunnel-description {
             type string {
               length "1..32";
             }
             description "The object indicates the description
             of tunnel";
           }
           leaf tunnel-type {
             type tunnel-type;
             default "ingress";
             description "The object indicates the type of tunnel";
           }
           leaf tunnel-direction {
             type tunnel-direction-type;
             description "The object indicates the direction of tunnel";
           }
         }

         list section {
           key "section-id";
           description "Section";
           leaf section-id {
             type uint64 {
               range "1..2147483647";
             }
             description "This object indicates the section ID";
           }
           leaf if-name {
             type string {
               length "1..63";
             }
             description "The object indicates the interface name";
           }
           leaf peer-ip {
             type inet:ip-address;
             mandatory "true";
             description "This object indicates the peer IP address";
           }
           leaf peer-lsr-id {
             type inet:ip-address;
             description "This object indicates the peer lsr ID";
           }
           leaf mep-id {
             type uint16 {
               range "1..8191";
             }
             description "This object indicates the MEP Id of



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             local ME";
           }
           leaf remote-mep-id {
             type uint16 {
               range "1..8191";
             }
             description "This object indicates the MEP Id of
             remote ME";
           }
         }

         list pw-spme {
           key "local-peer-ip local-vc-id switch-peer-ip
           switch-vc-id vc-type instance-name";
           description "PW-SPME";
           uses pw-spme;
         }

         list lsp-spme {
           key "tunnel-id local-lsr-id remote-lsr-id";
           description "LSP-SPME";
           leaf tunnel-id {
             type uint32 {
               range "1..65535";
             }
             description "The object indicates the tunnel id";
           }
           leaf local-lsr-id {
             type inet:ip-address;
             description "The object indicates the ingress LSR-ID";
           }
           leaf remote-lsr-id {
             type inet:ip-address;
             description "The object indicates the egress LSR-ID";
           }
         }

         container cc {
           description "CC";
           leaf cc-session-mode {
             type cc-session-mode;
             default "coordinated";
             description "This object indicates the session
             mode of CC";
           }
           leaf cc-authentication-enable {
             type enable;
             default "true";



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             description "CC authentication enable";
           }
           leaf cc-exp {
             type uint8 {
               range "0..7";
             }
             default "7";
             description "This object indicates the exp of CC
             packet which is sent in the MEG";
           }
           leaf cc-transmit-interval {
             type cc-interval;
             default "1";
             description "The interval of CC packet which is
             transmit in the MEG";
           }
           leaf cc-recieve-interval {
             type cc-interval;
             default "1";
             description "The interval of CC packet which is
             recieved in the MEG";
           }
           leaf cc-detect-multiplier {
             type cc-detect-multiplier;
             default "3";
             description "The object indicate the detect
             multiplier of CC packet";
           }
           leaf cc-enable {
             type enable;
             default "true";
             description "The object indicates whether CC can be
             sent by the MEG";
           }
         }
         container cv {
           description "CV";
           leaf cv-session-mode {
             type cc-session-mode;
             default "coordinated";
             description "This object indicates the session
             mode of CC";
           }
           leaf cv-authentication-enable {
             type enable;
             default "true";
             description "CV authentication enable";
           }



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           leaf cv-exp {
             type uint8 {
               range "0..7";
             }
             default "7";
             description "This object indicates the exp of CV packet
             which is sent in the MEG";
           }
           leaf cv-interval {
             type cv-interval;
             default "1";
             description "The interval of CV packet which is sent
             in the MEG";
           }
           leaf cv-detect-multiplier {
             type cv-detect-multiplier;
             default "3";
             description "The object indicate the detect multiplier
             of CV packet";
           }
           leaf cv-enable {
             type enable;
             default "true";
             description "The object indicates whether CC can be
             received by the MEG";
           }
         }

         container ais {
           description "AIS";
           leaf ais-exp {
             type uint8 {
               range "0..7";
             }
             default "7";
             description "This object indicates the exp of AIS packet
             which is sent in the MEG";
           }
           leaf ais-interval {
             type ais-interval;
             default "interval1000ms";
             description "This object indicates the interval of AIS
             packet which is sent in the MEG";
           }
         }

         container lkr {
           description "LKR";



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           leaf lkr-exp {
             type uint8 {
               range "0..7";
             }
             default "7";
             description "This object indicates the exp of lock report
             packet which is sent in the MEG";
           }
           leaf lkr-interval {
             type lkr-interval;
             default "interval1000ms";
             description "This object indicates the interval of lock
             report packet which is sent in the MEG";
           }
           leaf lkr-enable {
             type enable;
             default "false";
             description "The object indicates whether lock report
             is enabled in the MEG";
           }
         }

         container one-way-dm-send {
           description "One way delay measurement send";
           leaf one-dm-send-enable {
             type enable;
             default "false";
             description "This object indicates the 1DM statistics
             is enabled in the MEG";
           }
           leaf one-dm-interval {
             type dm-interval;
             default "1000";
             description "This object indicates the interval of
             1DM statistics in the MEG";

           }
           leaf one-dm-exp {
             type uint8 {
               range "0..7";
             }
             default "7";
             description "This object indicates the exp of 1DM
             packet which is sent in the MEG";
           }
           leaf one-dm-packet-size {
             type uint16 {
               range "64..1518";



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             }
             description "This object indicates the packet size
             of 1DM packet which is sent in the MEG";
           }
           leaf one-dm-pad-value {
             type dm-padding-value;
             default "paddingvalue0";
             description "This object indicates the padding value
             of 1DM packet which is sent in the MEG";
           }
         }

         container one-way-dm-rcv {
           description "One way delay measurement received";
           leaf onr-dm-rcv-enable {
             type enable;
             default "false";
             description "This object indicates the 1DM receive
             is enabled in the MEG";
           }
           leaf one-dm-rcv-enable-type {
             type one-way-rcv-type;
             description "This object indicates the 1DM receive type";
           }
         }

         container two-way-dm-send {
           description "Two way delay measurement send";
           leaf two-dm-send-enable {
             type enable;
             default "false";
             description "This object indicates the 2DM statistics
             is enabled in the MEG";
           }
           leaf two-dm-interval {
             type dm-interval;
             default "1000";
             description "This object indicates the interval of
             2DM statistics in the MEG";
           }
           leaf two-dm-exp {
             type uint8 {
               range "0..7";
             }
             default "7";
             description "This object indicates the exp of 2DM
             packet which is sent in the MEG";
           }



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           leaf two-dm-packet-size {
             type uint16 {
               range "64..1518";
             }
             description "This object indicates the packet size of
             2DM packet which is sent in the MEG";
           }
           leaf two-dm-pad-value {
             type dm-padding-value;
             default "paddingvalue0";
             description "This object indicates the padding value of
             2DM packet which is sent in the MEG";
           }
           leaf two-dm-time-stamp {
             type enable;
             default "false";
             description "This object indicates whether two-way delay
             measurement time stamp is enable in the MEG";
           }
         }

         container two-way-dm-rcv {
           description "Two way delay measurement recieved";
           leaf two-dm-rcv-enable {
             type enable;
             default "false";
             description "This object indicates the 2DM receiving
             statistics is enabled in the MEG";
           }
         }

         container single-lm-send {
           description "Single loss measurment send";
           leaf slm-send-enable {
             type enable;
             default "false";
             description "This object indicates whether slm send
             is enable in the MEG";
           }
           leaf slm-interval {
             type lm-interval;
             default "1000";
             description "This object indicates the interval of
             slm statistics in the MEG";
           }
           leaf slm-exp {
             type uint8 {
               range "0..7";



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             }
             default "7";
             description "This object indicates the exp of slm
             packet which is sent in the MEG";
           }
         }

         container single-lm-rcv {
           description "Single loss measurment received";
           leaf slm-rcv-enable {
             type enable;
             default "false";
             description "This object indicates whether slm
             receive is enable in the MEG";
           }
         }

         container dual-lm {
           description "Dual loss measurement";
           leaf dlm-enable {
             type enable;
             default "false";
             description "This object indicates the dual loss
             statistics is enabled in the MEG";
           }
         }

         container status-info {
           config "false";
           description "Status info";
           list pw {
             uses me-detect-status;
             description "PW";
           }
           list lsp {
             uses me-detect-status;
             leaf me-index-egress {
               type uint32 {
                 range "1..65535";
               }
               description "The object indicates the egress index
               of ME";
             }
             leaf me-direct-egress {
               type me-direction;
               description "The object indicates the direction of
               egress ME";
             }



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             leaf status-board-egress {
               type string {
                 length "1..19";
               }
               description "The object indicates the selected status
                board of ME";
             }
             leaf state-egress {
               type me-state;
               description "The object indicates the status of ME";
             }
             leaf alarm-egress {
               type string {
                 length "1..26";
               }
               description "The object indicates the alarm of ME";
             }
             description "LSP";
           }
           list section {
             uses me-detect-status;
             description "Section";
           }
           list pw-spme {
             leaf me-index {
               type uint32 {
                 range "1..65535";
               }
               description "The object indicates the index of MIP";
             }
             leaf me-direction {
               type me-direction;
               description "The object indicates the direction of MIP";
             }
             leaf me-state {
               type me-state;
               description "The object indicates the state of MIP";
             }
             leaf mip-id {
               type uint16 {
                 range "1..8191";
               }
               description "The object indicates the ID of MIP";
             }
             description "PW-SPME";
           }
           list lsp-spme{
             leaf me-index {



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               type uint32 {
                 range "1..65535";
               }
               description "The object indicates the index of te MIP";
             }
             leaf me-direction {
               type me-direction;
               description "The object indicates the direction of
               te MIP";
             }
             leaf me-state {
               type me-state;
                description "The object indicates the state of te MIP";
             }
             leaf mip-id {
               type uint16 {
                 range "1..8191";
               }
               description "The object indicates the ID of te MIP";
             }
             description "LSP-SPME";
           }
         }
         container detect-result {
           config "false";
           description "Detect result";
           container one-way-dm-result {
             config "false";
             description "One way delay measurement result";
             leaf send-pkt-num {
               type uint32 {
                 range "1..4294967295";
               }
               description "Send packet number";
             }
             leaf recv-pkt-num {
               type uint32 {
                 range "1..4294967295";
               }
               description "Recieved packet number";
             }
             leaf delay-min {
               type uint32 {
                 range "1..4294967295";
               }
               description "This object indicates the minimum delay
               of received LB packets in the MEG";
             }



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             leaf delay-max {
               type uint32 {
                 range "1..4294967295";
               }
               description "This object indicates the maximum delay
               of received LB packets in the MEG";
             }
             leaf delay-avg {
               type uint32 {
                 range "1..4294967295";
               }
               description "This object indicates the average delay
               of received LB packets in the MEG";
             }
             leaf jitter-min {
               type uint32 {
                 range "1..4294967295";
               }
               description "This object indicates the minimum jitter
               of received LB packets in the MEG";
             }
             leaf jitter-max {
               type uint32 {
                 range "1..4294967295";
               }
               description "This object indicates the average jitter
               of received LB packets in the MEG";
             }
             leaf jitter-avg {
               type uint32 {
                 range "1..4294967295";
               }
               description "This object indicates the average jitter
               of received LB packets in the MEG";
             }

             container one-way-dm-data {
               config "false";
               description "One way delay measurement data";
               list one-way-dm-data {
                 key "index";
                 leaf index {
                   type uint32 {
                     range "1..4294967295";
                   }
                   description "This object indicates index of 1DM
                   statistics record in the MEG";
                 }



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                 leaf one-delay {
                   type uint32 {
                     range "1..4294967295";
                   }
                   description "This object indicates delay of 1DM
                   statistics in the MEG";
                 }
                 leaf one-delay-var {
                   type uint32 {
                     range "1..4294967295";
                   }
                   description "This object indicates delay Variation
                   of 1DM statistics in the MEG";
                 }
                 leaf error-info {
                   type error-info;
                   description "This object indicates the error info
                   of statistics record in the MEG";
                 }
                 description "One way delay measurement data";
               }
             }
           }

           container one-way-send-result {
             config "false";
             description "One way send result";
             leaf measure-mode {
               type measure-mode;
               default "on-demand";
               description "The flag indicates whether the measurement
               is an on-demand or a continue measurement";
             }
             leaf status {
               type statistics-status;
               default "finished";
               description "The flag indicates whether the measurement
               is finished";
             }
           }

           container two-way-dm-result {
             config "false";
             description "Two way delay measurement result.";
             leaf measure-mode {
               type measure-mode;
               default "on-demand";
               description "The flag indicates whether the measurement



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               is an on-demand or a continue measurement";
             }
             leaf status {
               type statistics-status;
               default "finished";
               description "The flag indicates whether the measurement
               is finished";
             }
             leaf send-pkt-num {
               type uint32 {
                 range "1..4294967295";
               }
               description "Send packet number";
             }
             leaf rcv-pkt-num {
               type uint32 {
                 range "1..4294967295";
               }
               description "Received packet number";
             }
             leaf delay-min {
               type uint32 {
                 range "1..4294967295";
               }
               description "This object indicates the minimum delay
               of received LB packets in the MEG";
             }
             leaf delay-max {
               type uint32 {
                 range "1..4294967295";
               }
               description "This object indicates the maximum delay
               of received LB packets in the MEG";
             }
             leaf delay-avg {
               type uint32 {
                 range "1..4294967295";
               }
               description "This object indicates the average delay
               of received LB packets in the MEG";
             }
             leaf jitter-min {
               type uint32 {
                 range "1..4294967295";
               }
               description "This object indicates the minimum jitter
               of received LB packets in the MEG";
             }



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             leaf jitter-max {
               type uint32 {
                 range "1..4294967295";
               }
               description "This object indicates the average jitter
               of received LB packets in the MEG";
             }
             leaf jitter-avg {
               type uint32 {
                 range "1..4294967295";
               }
               description "This object indicates the average jitter
               of received LB packets in the MEG";
             }
             container two-way-dm-data {
               config "false";
               description "Two way delay measurement data";
               list two-way-dm-data {
                 key "index";
                 leaf index {
                   type uint32 {
                     range "1..4294967295";
                   }
                   description "This object indicates index of 2DM
                   statistics record in the MEG";
                 }
                 leaf two-delay {
                   type uint32 {
                     range "1..4294967295";
                   }
                   description "This object indicates delay of 2DM
                   statistics in the MEG";
                 }
                 leaf two-delay-var {
                   type uint32 {
                     range "1..4294967295";
                   }
                   description "This object indicates delay Variation
                   of 2DM statistics in the MEG";
                 }
                 leaf error-info {
                   type error-info;
                   description "This object indicates the error info
                   of statistics record in the MEG";
                 }
                 description "Two way delay measurement data";
               }
             }



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           }

           container single-lm-result {
             config "false";
             description "Single loss measurement result.";
             leaf measure-mode {
               type measure-mode;
               default "on-demand";
               description "The flag indicates whether the measurement
               is an on-demand or a continue measurement";
             }
             leaf status {
               type statistics-status;
               default "finished";
               description "The flag indicates whether the measurement
               is finished";
             }
             leaf send-pkt-num {
               type uint32 {
                 range "1..4294967295";
               }
               description "Send packet number";
             }
             leaf rcv-pkt-num {
               type uint32 {
                 range "1..4294967295";
               }
               description "Received packet number";
             }
             leaf rmt-loss-ratio-min {
               type uint32 {
                 range "1..4294967295";
               }
               description "This object indicates the minimum loss-ratio
               of received LB packets in the MEG";
             }
             leaf rmt-loss-ratio-max {
               type uint32 {
                 range "1..4294967295";
               }
               description "This object indicates the maximum loss-ratio
               of received LB packets in the MEG";
             }
             leaf rmt-loss-atio-avg {
               type uint32 {
                 range "1..4294967295";
               }
               description "This object indicates the average loss-ratio



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               of received LB packets in the MEG";
             }
             leaf rmt-loss-count-min {
               type uint32 {
                 range "1..4294967295";
               }
               description "This object indicates the minimum packet
               lost of received LB packets in the MEG";
             }
             leaf rmt-loss-count-max {
               type uint32 {
                 range "1..4294967295";
               }
               description "This object indicates the average packet
               lost of received LB packets in the MEG";
             }
             leaf rmt-loss-count-avg {
               type uint32 {
                 range "1..4294967295";
               }
               description "This object indicates the average packet
               lost of received LB packets in the MEG";
             }

             container single-lm-data {
               config "false";
               description "Single loss measurement data";
               list single-lm-data {
                 key "index";
                 leaf index {
                   type uint32 {
                     range "1..4294967295";
                   }
                   description "This object indicates index of slm
                   statistics record in the MEG";
                 }
                 leaf slm-loss-lcl {
                   type uint32 {
                     range "1..4294967295";
                   }
                   description "This object indicates local packet
                   loss of slm statistics in the MEG";
                 }
                 leaf slm-loss-lcl-rat {
                   type string {
                     length "1..24";
                   }
                   description "This object indicates local packet



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                   loss rate of slm statistics in the MEG";
                 }
                 leaf slm-loss-rmt {
                   type uint32 {
                     range "1..4294967295";
                   }
                   description "This object indicates remote packet
                   loss of slm statistics in the MEG";
                 }
                 leaf slm-loss-rmt-rat {
                   type string {
                     length "1..24";
                   }
                   description "This object indicates remote packet
                   loss rate of slm statistics in the MEG";
                 }
                 leaf error-info {
                   type error-info;
                   description "This object indicates the error
                   info of statistics record in the MEG";
                 }
                 description "Single loss measurement data";
               }
             }
           }

           container dual-lm-data {
             config "false";
             description "Dula loss measurement data";
             list dual-lm-data {
               key "index";
               leaf index {
                 type uint32 {
                   range "1..4294967295";
                 }
                 description "This object indicates index of dlm
                 statistics record in the MEG";
               }
               leaf dlm-Loss-lcl {
                 type uint32 {
                   range "1..4294967295";
                 }
                 description "This object indicates local packet
                 loss of dlm statistics in the MEG";
               }
               leaf dlm-loss-lcl-rat {
                 type string {
                   length "1..24";



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                 }
                 description "This object indicates local packet
                 loss rate of dlm statistics in the MEG";
               }
               leaf dlm-loss-rmt {
                 type uint32 {
                   range "1..4294967295";
                 }
                 description "This object indicates remote packet
                 loss of dlm statistics in the MEG";
               }
               leaf dlm-loss-rmt-rat {
                 type string {
                   length "1..24";
                 }
                 description "This object indicates remote packet
                 loss rate of dlm statistics in the MEG";
               }
               leaf error-info {
                 type error-info;
                 description "This object indicates the error info
                 of statistics record in the MEG";
               }
               description "Dual loss measurement data";
             }
           }
         }
       }
     }
   }
   <CODE ENDS>

7.  Examples

   Examples of using Yang module to configure and manage MPLS-TP OAM
   will be given here in the update.

8.  Security Considerations

   The configuration and state data defined in this document is designed
   to be accessed via the NETCONF protocol [RFC6241].  The lowest
   NETCONF layer is the secure transport layer and the mandatory-to-
   implement secure transport is SSH [RFC6242].  The authors recommend
   to implement the NETCONF access control model [RFC6536] to restrict
   access for particular NETCONF users to a pre-configured subset of all
   available NETCONF protocol operations and content.  There are a
   number of config true nodes defined in the YANG module which are
   writable/creatable/deletable.  These data nodes may be considered



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   sensitive or vulnerable in some network environments.  Write
   operations to these data nodes without proper protection can have a
   negative effect on network operations.

9.  IANA Considerations

   The IANA is requested to as assign a new namespace URI from the IETF
   XML registry.

   URI:TBA

10.  Acknowledgements

   TBD

11.  References

11.1.  Normative References

   [RFC2119]  Bradner, S., "Key words for use in RFCs to Indicate
              Requirement Levels", BCP 14, RFC 2119,
              DOI 10.17487/RFC2119, March 1997,
              <http://www.rfc-editor.org/info/rfc2119>.

   [RFC6020]  Bjorklund, M., Ed., "YANG - A Data Modeling Language for
              the Network Configuration Protocol (NETCONF)", RFC 6020,
              DOI 10.17487/RFC6020, October 2010,
              <http://www.rfc-editor.org/info/rfc6020>.

   [RFC6374]  Frost, D. and S. Bryant, "Packet Loss and Delay
              Measurement for MPLS Networks", RFC 6374,
              DOI 10.17487/RFC6374, September 2011,
              <http://www.rfc-editor.org/info/rfc6374>.

   [RFC6375]  Frost, D., Ed. and S. Bryant, Ed., "A Packet Loss and
              Delay Measurement Profile for MPLS-Based Transport
              Networks", RFC 6375, DOI 10.17487/RFC6375, September 2011,
              <http://www.rfc-editor.org/info/rfc6375>.

   [RFC6427]  Swallow, G., Ed., Fulignoli, A., Ed., Vigoureux, M., Ed.,
              Boutros, S., and D. Ward, "MPLS Fault Management
              Operations, Administration, and Maintenance (OAM)",
              RFC 6427, DOI 10.17487/RFC6427, November 2011,
              <http://www.rfc-editor.org/info/rfc6427>.







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   [RFC6428]  Allan, D., Ed., Swallow, G., Ed., and J. Drake, Ed.,
              "Proactive Connectivity Verification, Continuity Check,
              and Remote Defect Indication for the MPLS Transport
              Profile", RFC 6428, DOI 10.17487/RFC6428, November 2011,
              <http://www.rfc-editor.org/info/rfc6428>.

11.2.  Infomative References

   [RFC5921]  Bocci, M., Ed., Bryant, S., Ed., Frost, D., Ed., Levrau,
              L., and L. Berger, "A Framework for MPLS in Transport
              Networks", RFC 5921, DOI 10.17487/RFC5921, July 2010,
              <http://www.rfc-editor.org/info/rfc5921>.

   [RFC6241]  Enns, R., Ed., Bjorklund, M., Ed., Schoenwaelder, J., Ed.,
              and A. Bierman, Ed., "Network Configuration Protocol
              (NETCONF)", RFC 6241, DOI 10.17487/RFC6241, June 2011,
              <http://www.rfc-editor.org/info/rfc6241>.

   [RFC6242]  Wasserman, M., "Using the NETCONF Protocol over Secure
              Shell (SSH)", RFC 6242, DOI 10.17487/RFC6242, June 2011,
              <http://www.rfc-editor.org/info/rfc6242>.

   [RFC6371]  Busi, I., Ed. and D. Allan, Ed., "Operations,
              Administration, and Maintenance Framework for MPLS-Based
              Transport Networks", RFC 6371, DOI 10.17487/RFC6371,
              September 2011, <http://www.rfc-editor.org/info/rfc6371>.

   [RFC6536]  Bierman, A. and M. Bjorklund, "Network Configuration
              Protocol (NETCONF) Access Control Model", RFC 6536,
              DOI 10.17487/RFC6536, March 2012,
              <http://www.rfc-editor.org/info/rfc6536>.

Authors' Addresses

   Li Zhang
   Huawei Technologies
   China

   Email: monica.zhangli@huawei.com


   Lianshu Zheng
   Huawei Technologies
   China

   Email: vero.zheng@huawei.com





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   Sam K. Aldrin
   Google
   USA

   Email: aldrin.ietf@gmail.com


   Greg Mirsky
   Ericsson
   USA

   Email: gregory.mirsky@ericsson.com







































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