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Versions: (draft-dharini-ccamp-dwdm-if-yang) 00 01 02 03 04 05 06 draft-ietf-ccamp-dwdm-if-param-yang

Internet Engineering Task Force                        G.Galimberti, Ed.
Internet-Draft                                                     Cisco
Intended status: Experimental                                    R.Kunze
Expires: May 4, 2017                                    Deutsche Telekom
                                                     D. Hiremagalur, Ed.
                                                       G. G.Grammel, Ed.
                                                                 Juniper
                                                        October 31, 2016


A YANG model to manage the optical interface parameters for an external
                      transponder in a WDM network
               draft-dharini-ccamp-dwdm-if-param-yang-00

Abstract

   This memo defines a Yang model related to the Optical Transceiver
   optical parameters characterising the 100G and above interfaces.
   100G and above Transceivers support coherent transmission, different
   modulation format, multiple FEC algorithms not yet specified by ITU-T
   G.698.2 [ITU.G698.2] or any other ITU-T recommendation.  The use
   cases and the state of the Coherent transceivers is well describe in
   draft-many-coherent-DWDM-if-control.

   The Yang model defined in this memo can be used for Optical
   Parameters monitoring and/or configuration of the endpoints of the
   multi-vendor IaDI optical link.

Copyright Notice

   Copyright (c) 2014 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

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
   time.  It is inappropriate to use Internet-Drafts as reference
   material or to cite them other than as "work in progress."




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   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  . . . . . . . . . . . . . . . . . . . . . . . .   3
   2.  The Internet-Standard Management Framework  . . . . . . . . .   4
   3.  Conventions . . . . . . . . . . . . . . . . . . . . . . . . .   4
   4.  Overview  . . . . . . . . . . . . . . . . . . . . . . . . . .   4
     4.1.  Optical Parameters Description  . . . . . . . . . . . . .   5
       4.1.1.  Table of Application Codes  . . . . . . . . . . . . .   6
       4.1.2.  Rs-Ss Configuration and operating parameters  . . . .   6
     4.2.  Parameters at Ss  . . . . . . . . . . . . . . . . . . . .   8
     4.3.  Interface at point Rs . . . . . . . . . . . . . . . . . .   8
       4.3.1.  Mandatory parameters  . . . . . . . . . . . . . . . .   9
       4.3.2.  Optional parameters . . . . . . . . . . . . . . . . .   9
       4.3.3.  Optical path from point Ss to Rs  . . . . . . . . . .   9
     4.4.  Use Cases . . . . . . . . . . . . . . . . . . . . . . . .   9
     4.5.  Optical Interface for external transponder in a WDM
           network . . . . . . . . . . . . . . . . . . . . . . . . .  10
   5.  Structure of the Yang Module  . . . . . . . . . . . . . . . .  10
   6.  Yang Module . . . . . . . . . . . . . . . . . . . . . . . . .  11
   7.  Security Considerations . . . . . . . . . . . . . . . . . . .  18
   8.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  18
   9.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .  18
   10. Contributors  . . . . . . . . . . . . . . . . . . . . . . . .  19
   11. References  . . . . . . . . . . . . . . . . . . . . . . . . .  19
     11.1.  Normative References . . . . . . . . . . . . . . . . . .  19
     11.2.  Informative References . . . . . . . . . . . . . . . . .  22
   Appendix A.  Change Log . . . . . . . . . . . . . . . . . . . . .  22
   Appendix B.  Open Issues  . . . . . . . . . . . . . . . . . . . .  22
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  22





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1.  Introduction

   This memo defines a Yang model that translates and obsolete the SNMP
   mib module defined in draft-galikunze-ccamp-dwdm-if-snmp-mib for
   managing single channel optical interface parameters of DWDM
   applications, using the approach specified in G.698.2.  This model is
   to support the optical parameters specified in ITU-T G.698.2
   [ITU.G698.2], plus some parameters related to full coherent
   transmission and not yet specified by ITU-T like modulation format,
   finer Grid provisioning, multiple carrier, etc.  The application
   identifiers specified in ITU-T G.874.1 [ITU.G874.1] and the Optical
   Power at Transmitter and Receiver side.  Note that G.874.1
   encompasses vendor-specific codes, which if used would make the
   interface a single vendor IaDI and could still be managed.

   [Editor's note: In G.698.2 this corresponds to the optical path from
   point S to R; network media channel is also used and explained in
   draft-ietf-ccamp-flexi-grid-fwk-02]

   Management will be performed at the edges of the network media
   channel (i.e., at the transmitters and receivers attached to the S
   and R reference points respectively) for the relevant parameters
   specified in G.698.2 [ITU.G698.2], G.798 [ITU.G798], G.874
   [ITU.G874], and the performance parameters specified in G.7710/Y.1701
   [ITU-T G.7710] and G.874.1 [ITU.G874.1].

   G.698.2 [ITU.G698.2] is primarily intended for metro applications
   that include optical amplifiers.  Applications are defined in G.698.2
   [ITU.G698.2] using optical interface parameters at the single-channel
   connection points between optical transmitters and the optical
   multiplexer, as well as between optical receivers and the optical
   demultiplexer in the DWDM system.  This Recommendation uses a
   methodology which does not explicitly specify the details of the
   optical network between reference point Ss and Rs, e.g., the passive
   and active elements or details of the design.  The Recommendation
   currently includes unidirectional DWDM applications at 2.5 and 10
   Gbit/s (with 100 GHz and 50 GHz channel frequency spacing).  Work is
   still under way for 40, 100 and Higher Gbit/s interfaces.  There is
   possibility for extensions to a lower channel frequency spacing.
   This document specifically refers also to the "application code"
   defined in the G.698.2 [ITU.G698.2] and included in the Application
   Identifier defined in G.874.1 [ITU.G874.1] and G.872 [ITU.G872], plus
   a few optical parameters not included in the G.698.2 application code
   specification.

   This draft refers and supports the draft-ietf-ccamp-dwdm-if-mng-ctrl-
   fwk and draft-many-coherent-DWDM-if-control.




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   The building of a yang model describing and extending the optical
   parameters defined in G.698.2 [ITU.G698.2], and reflected in G.874.1
   [ITU.G874.1], allows the different vendors and operator to retrieve,
   provision and exchange information across the G.698.2 multi-vendor
   IaDI in a standardised way.  In addition to the parameters specified
   in ITU recommendations the Yang models support also the "vendor
   specific application identifier", the Tx and Rx power at the Ss and
   Rs points and the channel frequency and the detailed parameters
   described in G.698.2 extending them to the new 100G and higher
   coherent interfaces..

   The Yang Model, reporting the Optical parameters and their values,
   characterizes the features and the performances of the optical
   components and allow a reliable link design in case of multi vendor
   optical networks.

2.  The Internet-Standard Management Framework

   For a detailed overview of the documents that describe the current
   Internet-Standard Management Framework, please refer to section 7 of
   RFC 3410 [RFC3410].

   This memo specifies a Yang model for optical interfaces.

3.  Conventions

   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] In
   the description of OIDs the convention: Set (S) Get (G) and Trap (T)
   conventions will describe the action allowed by the parameter.

4.  Overview


















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   Figure 1 shows a set of reference points, for single-channel
   connection between transmitters (Tx) and receivers (Rx).  Here the
   DWDM network elements include an OM and an OD (which are used as a
   pair with the opposing element), one or more optical amplifiers and
   may also include one or more OADMs.


          +-------------------------------------------------+
       Ss |              DWDM Network Elements              | Rs
   +--+ | |  | \                                       / |  |  | +--+
   Tx L1--|->|   \    +------+            +------+   /   |--|-->Rx L1
   +---+  |  |    |   |      |  +------+  |      |  |    |  |    +--+
   +---+  |  |    |   |      |  |      |  |      |  |    |  |    +--+
   Tx L2--|->| OM |-->|------|->| OADM |--|------|->| OD |--|-->Rx L2
   +---+  |  |    |   |      |  |      |  |      |  |    |  |    +--+
   +---+  |  |    |   |      |  +------+  |      |  |    |  |    +--+
   Tx L3--|->|   /    | DWDM |    |  ^    | DWDM |   \   |--|-->Rx L3
   +---+  |  | /      | Link +----|--|----+ Link |     \ |  |    +--+
          +-----------+           |  |           +----------+
                               +--+  +--+
                               |        |
                            Rs v        | Ss
                            +-----+  +-----+
                            |RxLx |  |TxLx |
                            +-----+  +-----+
   Ss = reference point at the DWDM network element tributary output
   Rs = reference point at the DWDM network element tributary input
   Lx = Lambda x
   OM = Optical Mux
   OD = Optical Demux
   OADM = Optical Add Drop Mux


   from Fig. 5.1/G.698.2

               Figure 1: External transponder in WDM netwoks

4.1.  Optical Parameters Description

   The link between the external transponders through a WDM network
   media channels are managed at the edges, i.e. at the transmitters
   (Tx) and receivers (Rx) attached to the S and R reference points
   respectively.  The set of parameters that could be managed are
   defined by the "application code" notation

   The definitions of the optical parameters are provided below to
   increase the readability of the document, where the definition is




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   ended by (R) the parameter can be retrieve with a read, when (W) it
   can be provisioned by a write, (R,W) can be either read or written.

4.1.1.  Table of Application Codes

   This table has a list of Application codes supported by this
   interface at point R are defined in G.698.2.

   Application code Identifier:
      The Identifier for the Application code.

   Application code Type:
      This parameter indicates the transceiver type of application
      code at Ss and Rs as defined in [ITU.G874.1], that is used by
      this interface Standard = 0, PROPRIETARY = 1
      If Proprietary the first 6 octets of the printable string will
      be the OUI (organizationally unique identifier) assigned to
      the vendor whose implementation generated the Application
      Identifier Code.

   Application code:
      This is the application code that is defined in G.698.2 or the
      vendor generated code which has the OUI.

   Number of Single-channel application codes Supported:
      This parameter indicates the number of Single-channel
      application codes supported by this interface

   Application code Length:
      The number of octets in the Application Code.


4.1.2.  Rs-Ss Configuration and operating parameters

   The Rs-Ss configuration table allows configuration of Central
   Frequency, Power and Application codes as described in [ITU.G698.2]
   and G.694.1 [ITU.G694.1] and other parameters related to new high
   speed coherent interfaces.

   Number of subcarriers:
      This parameter indicates the number of subcarriers available for
      the super-channel in case the Transceiver can support multipla
      carrier Circuits.

   Current Laser Output power:
      This parameter report the current Transceiver Output power, it can
      be either a setting and measured value (R/W).




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   Central frequency (see G.694.1 Table 1):
      This parameter indicates the Central frequency value that Ss and
      Rs will be set to work (in THz).  See the details in Section 6/
      G.694.1 or based on "n" and "k" values in case of multicarrier
      transceivers (R/W).

   Central frequency franularity:
      This parameter indicates the Central frequency granularity
      supported by the transceiver, this value is combined with K and n
      value to calculate the central frequency on the carrier or sub-
      carriers (R).

   Current Laser Input power:
      This parameter report the current Transceiver Input power (G).

   Minimum channel spacing:
      This is the minimum nominal difference in frequency (in GHz)
      between two adjacent channels (or carriers) depending on the
      Transceiver characteristics (R).

   Bit rate / Baud rate of optical tributary signals:
      Optical tributary signal bit (for NRZ signals) rate or Symbol (for
      Multiple bit per symbol) rate .

   FEC Coding:
      This parameter indicate what Forward Error Correction (FEC) code
      is used at Ss and Rs (R/W) (not mentioned in G.698).  .

   Maximum bit error ratio (BER):
      This parameter indicate the maximum Bit error rate can be
      supported by the application at the Receiver.  In case of FEC
      applications it is intended after the FEC correction (R) .

   Wavelength Range (see G.694.1):  [ITU.G694.1]
      This parameter indicate minimum and maximum wavelength spectrum
      (R) in a definite wavelength Band (L, C and S).

   Modulatoin format:
      This parameter indicates the list of supported Modulation Formats
      and the provisioned Modulation Format.  (R/W).

   Inter carrier skew:
      This parameter indicates, in case of multi-carrier transceivers
      the maximum skew between the sub-carriers supported by the
      transceiver (R).






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4.2.  Parameters at Ss

   The following parameters for the interface at point S are defined in
   G.698.2 [ITU.G698.2].

   Maximum and minimum mean channel output power:
      The mean launched power at Ss is the average power (in dBm) of a
      pseudo-random data sequence coupled into the DWDM link.  It is
      defined as the rhange (Max and Min ) of the parameter (R/W)

   Minimum and maximum central frequency:
      The central frequency is the nominal single-channel frequency (in
      THz) on which the digital coded information of the particular
      optical channel is modulated by use of the NRZ line code.  The
      central frequencies of all channels within an application lie on
      the frequency grid for the minimum channel spacing of the
      application given in ITU-T Rec. G.694.1.  This parameter give the
      Maximum and minimum frequency interval the channel must be
      modulated (R)

   Maximum spectral excursion:
      This is the maximum acceptable difference between the nominal
      central frequency (in GHz) of the channel and the minus 15 dB
      points of the transmitter spectrum furthest from the nominal
      central frequency measured at point Ss.  (R)

   Maximum transmitter (residual) dispersion OSNR penalty (B.3/G.959.1)
     [ITU.G959.1]
      Defines a reference receiver that this penalty is measured with.
      Lowest OSNR at Ss with worst case (residual) dispersion minus the
      Lowest OSNR at Ss with no dispersion.  Lowest OSNR at Ss with no
      dispersion (R)

   Minimum side mode suppression ratio, Minimum channel extinction
   ratio, Eye mask:
      Although are defined in G.698.2 are not supported by this draft
      (R).

   Current Laser Output power:
      This parameter report the current Transceiver Output power, it can
      be either a setting and measured value (R/W) NEED TO DISCUSS ON
      THIS.

4.3.  Interface at point Rs

   The following parameters for the interface at point R are defined in
   G.698.2.




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4.3.1.  Mandatory parameters

   Maximum and minimum mean input power:
      The maximum and minimum values of the average received power (in
      dBm) at point Rs.  (R)

   Minimum optical signal-to-noise ratio (OSNR):
      The minimum optical signal-to-noise ratio (OSNR) is the minimum
      value of the ratio of the signal power in the wanted channel to
      the highest noise power density in the range of the central
      frequency plus and minus the maximum spectral excursion (R)

   Receiver OSNR tolerance:
      The receiver OSNR tolerance is defined as the minimum value of
      OSNR at point Rs that can be tolerated while maintaining the
      maximum BER of the application.  (R)

   Maximum reflectance at receiver:
      Although is defined in G.698.2, this parameter is not supported by
      this draft (R).

4.3.2.  Optional parameters

   Current Chromatic Dispersion (CD):
      Residual Chromatic Dispersion measuread at Rx Transceiver port
      (R).

   Current Optical Signal to Noise Ratio (OSNR):
      Current Optical Signal to Noise Ratio (OSNR) estimated at Rx
      Transceiver port (R).

   Current Quality factor (Q):
      "Q" factor estimated at Rx Transceiver port (R).

4.3.3.  Optical path from point Ss to Rs

   The following parameters for the optical path from point S and R are
   defined in G.698.2 and are covered by draft-ggalimbe-ccamp-iv-yang
   [ITU.G698.2].

4.4.  Use Cases

   The use cases are described in draft-ietf-ccamp-dwdm-if-mng-ctrl-fwk








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4.5.  Optical Interface for external transponder in a WDM network

   The ietf-ext-xponder-wdm-if is an augment to the ietf-interface.  It
   allows the user to set the application code/vendor transceiver class/
   Central frequency and the output power.  The module can also be used
   to get the list of supported application codes/transceiver class and
   also the Central frequency/output power/input power of the interface.

        module: ietf-ext-xponder-wdm-if
        augment /if:interfaces/if:interface:
            +--rw optIfOChRsSs
                  +--rw if-current-application-code
                  |  +--rw application-code-id    uint8
                  |  +--rw application-code-type  uint8
                  |  +--rw application-code-length uint8
                  |  +--rw application-code?     string
                  +--ro if-supported-application-codes
                  |  +--ro number-application-codes-supported?   uint32
                  |  +--ro application-codes-list* [application-code-id]
                  |     +--ro application-code-id   uint8
                  |     +--rw application-code-type  uint8
                  |     +--rw application-code-length uint8
                  |     +--ro application-code?    string
                  +--rw output-power?                     int32
                  +--ro input-power?                      int32
                  +--rw central-frequency?                uint32


       notifications:
      +---n opt-if-och-central-frequency-change
      |  +--ro if-name?      leafref
      |  +--ro new-central-frequency
      |     +--ro central-frequency?   uint32
      +---n opt-if-och-application-code-change
      |  +--ro if-name?              leafref
      |  +--ro new-application-code
      |     +--ro application-code-id?   uint8
      |     +--rw application-code-type  uint8
      |     +--rw application-code-length uint8
      |     +--ro application-code?     string



5.  Structure of the Yang Module

   ietf-ext-xponder-wdm-if is a top level model for the support of this
   feature.




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6.  Yang Module

   The ietf-ext-xponder-wdm-if is defined as an extension to ietf
   interfaces.















































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   <CODE BEGINS> file "ietf-ext-xponder-wdm-if.yang"

   module ietf-ext-xponder-wdm-if {
        namespace "urn:ietf:params:xml:ns:yang:ietf-ext-xponder-wdm-if";
        prefix ietf-ext-xponder-wdm-if;

        import ietf-interfaces {
          prefix if;
        }

        organization
          "IETF CCAMP
          Working Group";

        contact
          "WG Web:   <http://tools.ietf.org/wg/ccamp/>
           WG List:  <mailto:ccamp@ietf.org>


           Editor:   Dharini Hiremagalur
                     <mailto:dharinih@juniper.net>";

        description
          "This module contains a collection of YANG definitions for
           configuring Optical interfaces.

           Copyright (c) 2016 IETF Trust and the persons identified
           as authors of the code.  All rights reserved.

           Redistribution and use in source and binary forms, with or
           without modification, is permitted pursuant to, and
           subject to the license terms contained in, the Simplified
           BSD License set forth in Section 4.c of the IETF Trust's
           Legal Provisions Relating to IETF Documents
           (http://trustee.ietf.org/license-info).";

       revision "2016-03-17" {
              description
                  "Initial revision.";
              reference
                  "";
       }





         grouping opt-if-och-application-code  {



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                description "Application code entity.";
                leaf application-code-id {
                   type uint8 {
                         range "1..255";
                   }
                   description
                         "Id for the Application code";
                }
                leaf application-code-type {
                   type uint8 {
                         range "0..1";
                }
                  description
                         "Type for the Application code
                           0 - Standard, 1 - Proprietory
                           When the Type is Proprietory, then the
                           first 6 octets of the application-code
                           will be the OUI (organizationally unique
                           identifier)";

                }
                leaf application-code-length {
                   type uint8 {
                         range "1..255";
                   }
                   description
                         "Number of octets in the Application code";

                }
                leaf application-code {
                   type string {
                         length "1..255";
                   }
                   description "This parameter indicates the
                        transceiver application code at Ss and Rs as
                        defined in [ITU.G698.2] Chapter 5.3, that
                        is/should be used by this interface.
                        The optIfOChApplicationsCodeList has all the
                        application codes supported by this
                        interface.";

                }
         }

        typedef dbm-t {
          type decimal64 {
            fraction-digits 2;
            range "-50..-30 | -10..5 | 10000000";



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          }
          description "
            Amplifier Power in dBm ";
        }
         grouping opt-if-och-application-code-list {
           description "List of Application codes group.";
           leaf number-application-codes-supported {
               type uint32;
               description "Number of Application codes
                            supported by this interface";
            }
           list application-code-list {
               key "application-code-id";
               description "List of the application codes";
               uses opt-if-och-application-code;
           }
         }


        grouping opt-if-och-power {
           description "Interface optical Power";
           leaf output-power {
               type int32;
               units ".01dbm";
               description "The output power for this interface in
                             .01 dBm.
                             The setting of the output power is
                              optional";
           }

           leaf input-power {
                type int32;
                units ".01dbm";
                config false;
                description "The current input power of this
                      interface";
           }
        }

     grouping channel-ITU {
     description "channel-ITU";
     container channel-t {
           description "wavelength notation according to RFC-6205";
            leaf grid {
              type uint32;
              description "grid type e.g.: 0=reserved, 1=DWDM, 2=CWDM";
            }
            leaf channel-spacing {



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              type uint32;
              description "DWDM grid e.g.: 1=100GHz, 2=50GHz, 3=25GHz";
            }
            leaf identifier {
              type uint32;
              description "Channel identifier";
            }
            leaf n {
              type uint32;
              description "N Value (Channel n-m notation)";
            }
          }
        }

     grouping channel-flex {
       description "channel-flex";
       container channel-n-m {
         description "Channel N / M Notation to describe the
                      MEdiachannel";
          leaf grid {
            type uint32;
             description "grid type e.g.: 0=reserved, 1=DWDM, 2=CWDM";
            }
          leaf channel-spacing {
            type uint32;
             description "DWDM grid e.g.: 1=100GHz, 2=50GHz, 3=25GHz";
       }
          leaf n {
             type uint32;
              description "N Value (Channel n-m notation)";
       }
          leaf m {
            type uint32;
               description "M Value (Channel n-m notation)";
         }
       }
     }


     grouping feasibility-limit-list {
       list feasibility-limit {
         key "id";
         description "Feasibility limit power / osnr pair";
         leaf id {
           type uint32;
           description "Unique Identifier";
         }
         leaf power {



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           type decimal64 {
             fraction-digits 2;
           }
           units "dB";
           description "Feasibility power";
         }
         leaf osnr {
           type decimal64 {
             fraction-digits 2;
           }
           description "Feasibility Signal / Noise";
         }
       }
       description "
         Ordered list of feasibility limits
         (should match order of supported FEC types
         given in fec-type-list).
       ";

     }

     grouping power-failure-low-alarm-grp {
       description "
         Optical Power failure alarm ";
         leaf power-failure-low {
         type dbm-t;
         units "dBm";
         default -1;
         description "Power Failure Low Value";
       }
     }

         grouping opt-if-och-central-frequency {
           description "Interface Central Frequency";
             leaf  central-frequency {
               type uint32;
               description "This parameter indicate This parameter
                       indicates the frequency of this interface ";

              }
        }


         notification opt-if-och-central-frequency-change {
            description "A change of Central Frequency has been
                         detected.";
            leaf "if-name" {
                type leafref {



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                    path "/if:interfaces/if:interface/if:name";
                }
                description "Interface name";
            }
            container new-opt-if-och-central-frequency {
            description "The new Central Frequency of the
                         interface";
            uses opt-if-och-central-frequency;
            }
         }

         notification opt-if-och-application-code-change {
            description "A change of Application code has been
                         detected.";
            leaf "if-name" {
                type leafref {
                    path "/if:interfaces/if:interface/if:name";
                }
                description "Interface name";
            }
            container new-application-code {
               description "The new application code for the
                   interface";
               uses opt-if-och-application-code;
            }
         }



         augment "/if:interfaces/if:interface" {
           description "Parameters for an optical interface";
           container optIfOChRsSs {
              description "RsSs path configuration for an interface";
              container if-current-application-code {
                   description "Current Application code of the
                                interface";
                   uses opt-if-och-application-code;
               }

               container if-supported-application-codes {
                   config false;
                   description "Supported Application codes of
                                the interface";
                   uses opt-if-och-application-code-list;
               }

               uses opt-if-och-power;




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               uses opt-if-och-central-frequency;

            }
         }
      }

   <CODE ENDS>


7.  Security Considerations

   The YANG module defined in this memo is designed to be accessed via
   the NETCONF protocol [RFC6241]. he lowest NETCONF layer is the secure
   transport layer and the mandatory-to-implement secure transport is
   SSH [RFC6242].  The NETCONF access control model [RFC6536] provides
   the means to restrict access for particular NETCONF users to a pre-
   configured subset of all available NETCONF protocol operation and
   content.

8.  IANA Considerations

   This document registers a URI in the IETF XML registry [RFC3688].
   Following the format in [RFC3688], the following registration is
   requested to be made:

   URI: urn:ietf:params:xml:ns:yang:ietf-interfaces:ietf-ext-xponder-
   wdm-if

   Registrant Contact: The IESG.

   XML: N/A, the requested URI is an XML namespace.

   This document registers a YANG module in the YANG Module Names
   registry [RFC6020].

   This document registers a YANG module in the YANG Module Names
   registry [RFC6020].

   prefix: ietf-ext-xponder-wdm-if reference: RFC XXXX

9.  Acknowledgements

   Gert Grammel is partly funded by European Union Seventh Framework
   Programme under grant agreement 318514 CONTENT.







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10.  Contributors

               Dean Bogdanovic
                 Juniper Networks
                 Westford
                 U.S.A.
                 email deanb@juniper.net

               Bernd Zeuner
                 Deutsche Telekom
                 Darmstadt
                 Germany
                 email B.Zeuner@telekom.de

               Arnold Mattheus
                 Deutsche Telekom
                 Darmstadt
                 Germany
                 email a.mattheus@telekom.de

               Manuel Paul
                 Deutsche Telekom
                 Berlin
                 Germany
                 email Manuel.Paul@telekom.de

               Walid Wakim
                 Cisco
                 9501 Technology Blvd
                 ROSEMONT, ILLINOIS 60018
                 UNITED STATES
                 email wwakim@cisco.com

               Kam Lam
                 Nokia
                 USA
                 +1 732 331 3476
                 kam.lam@nokia.com


11.  References

11.1.  Normative References

   [RFC2863]  McCloghrie, K. and F. Kastenholz, "The Interfaces Group
              MIB", RFC 2863, DOI 10.17487/RFC2863, June 2000,
              <http://www.rfc-editor.org/info/rfc2863>.




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   [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>.

   [RFC2578]  McCloghrie, K., Ed., Perkins, D., Ed., and J.
              Schoenwaelder, Ed., "Structure of Management Information
              Version 2 (SMIv2)", STD 58, RFC 2578,
              DOI 10.17487/RFC2578, April 1999,
              <http://www.rfc-editor.org/info/rfc2578>.

   [RFC2579]  McCloghrie, K., Ed., Perkins, D., Ed., and J.
              Schoenwaelder, Ed., "Textual Conventions for SMIv2",
              STD 58, RFC 2579, DOI 10.17487/RFC2579, April 1999,
              <http://www.rfc-editor.org/info/rfc2579>.

   [RFC2580]  McCloghrie, K., Ed., Perkins, D., Ed., and J.
              Schoenwaelder, Ed., "Conformance Statements for SMIv2",
              STD 58, RFC 2580, DOI 10.17487/RFC2580, April 1999,
              <http://www.rfc-editor.org/info/rfc2580>.

   [RFC3591]  Lam, H-K., Stewart, M., and A. Huynh, "Definitions of
              Managed Objects for the Optical Interface Type", RFC 3591,
              DOI 10.17487/RFC3591, September 2003,
              <http://www.rfc-editor.org/info/rfc3591>.

   [RFC6205]  Otani, T., Ed. and D. Li, Ed., "Generalized Labels for
              Lambda-Switch-Capable (LSC) Label Switching Routers",
              RFC 6205, DOI 10.17487/RFC6205, March 2011,
              <http://www.rfc-editor.org/info/rfc6205>.

   [ITU.G698.2]
              International Telecommunications Union, "Amplified
              multichannel dense wavelength division multiplexing
              applications with single channel optical interfaces",
              ITU-T Recommendation G.698.2, November 2009.

   [ITU.G709]
              International Telecommunications Union, "Interface for the
              Optical Transport Network (OTN)", ITU-T Recommendation
              G.709, March 2003.

   [ITU.G872]
              International Telecommunications Union, "Architecture of
              optical transport networks", ITU-T Recommendation G.872,
              November 2001.





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   [ITU.G798]
              International Telecommunications Union, "Characteristics
              of optical transport network hierarchy equipment
              functional blocks", ITU-T Recommendation G.798, October
              2010.

   [ITU.G874]
              International Telecommunications Union, "Management
              aspects of optical transport network elements",
              ITU-T Recommendation G.874, July 2010.

   [ITU.G874.1]
              International Telecommunications Union, "Optical transport
              network (OTN): Protocol-neutral management information
              model for the network element view", ITU-T Recommendation
              G.874.1, January 2002.

   [ITU.G959.1]
              International Telecommunications Union, "Optical transport
              network physical layer interfaces", ITU-T Recommendation
              G.959.1, November 2009.

   [ITU.G826]
              International Telecommunications Union, "End-to-end error
              performance parameters and objectives for international,
              constant bit-rate digital paths and connections",
              ITU-T Recommendation G.826, November 2009.

   [ITU.G8201]
              International Telecommunications Union, "Error performance
              parameters and objectives for multi-operator international
              paths within the Optical Transport Network (OTN)",
              ITU-T Recommendation G.8201, April 2011.

   [ITU.G694.1]
              International Telecommunications Union, "Spectral grids
              for WDM applications: DWDM frequency grid",
              ITU-T Recommendation G.694.1, June 2002.

   [ITU.G7710]
              International Telecommunications Union, "Common equipment
              management function requirements", ITU-T Recommendation
              G.7710, May 2008.








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11.2.  Informative References

   [RFC3410]  Case, J., Mundy, R., Partain, D., and B. Stewart,
              "Introduction and Applicability Statements for Internet-
              Standard Management Framework", RFC 3410,
              DOI 10.17487/RFC3410, December 2002,
              <http://www.rfc-editor.org/info/rfc3410>.

   [RFC2629]  Rose, M., "Writing I-Ds and RFCs using XML", RFC 2629,
              DOI 10.17487/RFC2629, June 1999,
              <http://www.rfc-editor.org/info/rfc2629>.

   [RFC4181]  Heard, C., Ed., "Guidelines for Authors and Reviewers of
              MIB Documents", BCP 111, RFC 4181, DOI 10.17487/RFC4181,
              September 2005, <http://www.rfc-editor.org/info/rfc4181>.

   [I-D.ietf-ccamp-dwdm-if-mng-ctrl-fwk]
              Kunze, R., Grammel, G., Beller, D., and G. Galimberti, "A
              framework for Management and Control of DWDM optical
              interface parameters", draft-ietf-ccamp-dwdm-if-mng-ctrl-
              fwk-00 (work in progress), April 2016.

   [RFC4054]  Strand, J., Ed. and A. Chiu, Ed., "Impairments and Other
              Constraints on Optical Layer Routing", RFC 4054,
              DOI 10.17487/RFC4054, May 2005,
              <http://www.rfc-editor.org/info/rfc4054>.

Appendix A.  Change Log

   This optional section should be removed before the internet draft is
   submitted to the IESG for publication as an RFC.

   Note to RFC Editor: please remove this appendix before publication as
   an RFC.

Appendix B.  Open Issues

   Note to RFC Editor: please remove this appendix before publication as
   an RFC.

Authors' Addresses










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   Gabriele Galimberti (editor)
   Cisco
   Via Santa Maria Molgora, 48 c
   20871 - Vimercate
   Italy

   Phone: +390392091462
   Email: ggalimbe@cisco.com


   Ruediger Kunze
   Deutsche Telekom
   Dddd, xx
   Berlin
   Germany

   Phone: +49xxxxxxxxxx
   Email: RKunze@telekom.de


   Dharini Hiremagalur (editor)
   Juniper
   1194 N Mathilda Avenue
   Sunnyvale - 94089 California
   USA

   Email: dharinih@juniper.net


   Gert Grammel (editor)
   Juniper
   Oskar-Schlemmer Str. 15
   80807 Muenchen
   Germany

   Phone: +49 1725186386
   Email: ggrammel@juniper.net














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