module bbf-xpon-types {

    yang-version 1.1;

    namespace "urn:bbf:yang:bbf-xpon-types";

    prefix bbf-xpon-types;

    import ietf-inet-types {
      prefix inet;
    }

    organization
      "Broadband Forum <https://www.broadband-forum.org>
Fiber Access Networks Work Area";

    contact
      "Comments or questions about this Broadband Forum YANG module
should be directed to <mailto:info@broadband-forum.org>.

Editor:      Joey Boyd, ADTRAN

Editor:      Igor Ternovsky, Broadcom

Editor:      Robert Peschi, Nokia

WA Director: Marta Seda, Calix

WA Director: Samuel Chen, Broadcom";

    description
      "This module contains a collection of YANG definitions for
supporting the Broadband Forum requirements on management of
ITU-T Passive Optical Network (PON) interfaces as defined in
ITU-T G.984.x, G.987.x, ITU-T G.989.x and ITU-T G.9807.x. As
such, this module is specific to access network equipment (e.g.,
BBF-specified Access Nodes and FTTdp DPUs).

Specifically, this module defines common YANG types used in the
management of xPON.

Copyright (c) 2018-2020, Broadband Forum

Redistribution and use in source and binary forms, with or
without modification, are permitted provided that the following
conditions are met:

1. Redistributions of source code must retain the above copyright
   notice, this list of conditions and the following disclaimer.

2. Redistributions in binary form must reproduce the above
   copyright notice, this list of conditions and the following
   disclaimer in the documentation and/or other materials
   provided with the distribution.

3. Neither the name of the copyright holder nor the names of its
   contributors may be used to endorse or promote products
   derived from this software without specific prior written
   permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

The above license is used as a license under copyright only.
Please reference the Forum IPR Policy for patent licensing terms
<https://www.broadband-forum.org/ipr-policy>.

Any moral rights which are necessary to exercise under the above
license grant are also deemed granted under this license.

This version of this YANG module is part of TR-385i2; see
the TR itself for full legal notices.";

    revision "2020-10-13" {
      description
        "Issue 2.
* Approval Date:    2020-10-13.
* Publication Date: 2020-10-13.";
      reference
        "TR-385i2: ITU-T PON YANG Modules
        	<https://www.broadband-forum.org/technical/download/
        		 TR-385_Issue-2.pdf>";

    }

    revision "2019-02-25" {
      description
        "Initial revision.
* Approval Date:    2019-02-25.
* Publication Date: 2019-02-25.";
      reference
        "TR-385: ITU-T PON YANG Modules
        	<https://www.broadband-forum.org/technical/download/
        		 TR-385.pdf>";

    }


    identity type-b-state-base {
      description
        "This identity is used as the base for possible
channel-terminations states for type B protection.";
    }

    identity active {
      base type-b-state-base;
      description
        "This identity is used to denote active state in type B
protection.";
    }

    identity standby {
      base type-b-state-base;
      description
        "This identity is used to denote standby state in type B
protection.";
    }

    identity not-part-of-type-b {
      base type-b-state-base;
      description
        "This identity is used to denote that the object is not part
of a type B protection scheme. This is for instance the
case when a channel-termination does not (yet) refer
to a channel-pair.";
    }

    identity location-base {
      description
        "This identity is used as the possible locations of an
object.";
    }

    identity inside-olt {
      base location-base;
      description
        "This identity is used to denote a location physically inside
the Optical Line Termination (OLT) chassis.";
    }

    identity outside-olt {
      base location-base;
      description
        "This identity is used to denote a location physically outside
the Optical Line Termination (OLT) chassis.";
    }

    identity channel-pair-type-base {
      description
        "This identity is used to qualify the possible types of a
channel-pair.";
    }

    identity ngpon2-twdm {
      base channel-pair-type-base;
      description
        "This identity is used to denote a Time Wavelength Division
Multiplexing (TWDM) NG-PON2 channel-pair, per ITU-T G.989.3.";
      reference
        "ITU-T G.989.3";

    }

    identity ngpon2-ptp {
      base channel-pair-type-base;
      description
        "This identity is used to denote a Point-to-Point (PtP) NG-PON2
channel pair, per ITU-T G.989.3.";
      reference
        "ITU-T G.989.3";

    }

    identity xgs {
      base channel-pair-type-base;
      description
        "This identity is used to denote an XGS-PON channel pair,
per ITU-T G.9807.1.";
      reference
        "ITU-T G.9807.1";

    }

    identity xgpon {
      base channel-pair-type-base;
      description
        "This identity is used to denote an XG-PON channel pair,
per ITU-T G.987.3.";
      reference
        "ITU-T G.987.3";

    }

    identity gpon {
      base channel-pair-type-base;
      description
        "This identity is used to denote an G-PON channel pair,
per ITU-T G.984.3.";
      reference
        "ITU-T G.984.3";

    }

    identity channel-pair-line-rate-profile-base {
      description
        "This identity is used to define the possible combinations
of downstream and upstream line-rates for an NG-PON2
channel-pair.";
    }

    identity unplanned-cp-line-rate {
      base channel-pair-line-rate-profile-base;
      description
        "This identity is used to denote an NG-PON2 channel pair with
yet undefined downstream and upstream line rates.";
    }

    identity down-10-up-10 {
      base channel-pair-line-rate-profile-base;
      description
        "This identity is used to denote an NG-PON2 channel pair with
downstream 10Gbps and upstream 10Gbps line rates.";
    }

    identity down-10-up-2.5 {
      base channel-pair-line-rate-profile-base;
      description
        "This identity is used to denote an NG-PON2 channel pair with
downstream 10Gbps and upstream 2.5Gbps line rates.";
    }

    identity down-2.5-up-2.5 {
      base channel-pair-line-rate-profile-base;
      description
        "This identity is used to denote an NG-PON2 channel pair with
downstream 2.5Gbps and upstream 2.5Gbps line rates.";
    }

    identity tcp-connection-state-base {
      description
        "This identity is used to denote the possible states of
a Transmission Control Protocol (TCP) connection.";
    }

    identity established {
      base tcp-connection-state-base;
      description
        "This identity is used to reflect that the Transmission Control
Protocol (TCP) connection is established.";
    }

    identity not-established {
      base tcp-connection-state-base;
      description
        "This identity is used to reflect that the Transmission Control
Protocol (TCP) connection is not established.";
    }

    identity unknown {
      base tcp-connection-state-base;
      description
        "This identity is used to reflect that the Transmission Control
Protocol (TCP) connection state is not known.";
    }

    identity action-request-status {
      description
        "This identity is used to denote the status following the
reception of a action.";
    }

    identity request-being-processed {
      base action-request-status;
      description
        "This identity is used to denote that the Optical Line
Termination (OLT) has received the action request and is
handling it.";
    }

    identity request-rejected {
      base action-request-status;
      description
        "This identity is used to denote that the Optical Line
Termination (OLT) has rejected the action request and will not
perform anything further.";
    }

    typedef string-hex14 {
      type string {
        pattern '[a-fA-F0-9]{14}';
      }
      description
        "A string representing 7 hexadecimal octets expressed in
ASCII.";
    }

    typedef pon-id-display-type {
      type union {
        type uint32;
        type string-hex14;
      }
      description
        "A type meant for the different formats of the PON-ID for the
various channel-pair types. The 'uint32' is meant for NG-PON2,
XGS-PON and XG-PON and the 'string-hex14' is meant for G-PON.";
    }

    typedef composite-channel-id-type {
      type union {
        type uint8 {
          range "0..7";
        }
        type enumeration {
          enum "xgs" {
            value 0;
            description
              "To be used in case of XGS-PON, rather than 0.";
          }
        }
      }
      description
        "A composite type strictly meant for leaves reflecting the
already allocated downstream or upstream channel-id on a
channel-group.
Such leaves are used to prevent conflicts when allocating
a channel-pair to a channel-group. For NG-PON2, the applicable
values are in [0..7], for XGS-PON a dedicated value 'xgs'
is used rather than '0' to prevent ambiguity between this and
the valid value '0' for NG-PON2.";
    }

    typedef composite-downstream-wavelength-type {
      type union {
        type uint32 {
          range "0 | 156000..161000";
        }
        type enumeration {
          enum "xgs" {
            value 0;
            description
              "To be used in case of XGS-PON.";
          }
          enum "xgpon" {
            value 1;
            description
              "To be used in case of XG-PON.";
          }
          enum "gpon" {
            value 2;
            description
              "To be used in case of G-PON.";
          }
        }
      }
      description
        "A composite type strictly meant for leaves reflecting the
already allocated downstream or upstream channel-id on a
channel-group.
Such leaves are used to prevent conflicts when allocating a
channel-pair to a channel-group. For NG-PON2, the applicable
values are in [0..8], for XGS-PON a dedicated value 'xgs'
is applicable rather than value '0': this is not to a priori
forbid in yang model the coexistence of XGS-PON with NG-PON2
using channel-id=0.";
    }

    typedef auth-method-type {
      type enumeration {
        enum "serial-number" {
          value 0;
          description
            "Authentication based on Optical Network Unit (ONU) serial
number.";
          reference
            "ITU-T G.984.3 clause VI.1";

        }
        enum "loid" {
          value 1;
          description
            "Authentication based on the Logical Optical Network Unit
(ONU) ID (LOID).";
          reference
            "ITU-T G.988 clause 9.1.1";

        }
        enum "registration-id" {
          value 2;
          description
            "Authentication based on Optical Network Unit (ONU)
registration ID.";
          reference
            "ITU-T G.984.3 clause VI.2";

        }
        enum "omci" {
          value 3;
          description
            "Authentication by use of the enhanced security control
managed entity (ME) over OMCI.";
          reference
            "ITU-T G.987.3 Annex C";

        }
        enum "dot1x" {
          value 4;
          description
            "Authentication according to IEEE 802.1x.";
          reference
            "ITU-T G.987.3 Annex D";

        }
        enum "as-per-v-ani-expected" {
          value 5;
          description
            "Authentication according to the expected configuration
of virtual ANIs. In that case an Optical Network Unit (ONU)
will be considered authenticated with a given virtual
Access Network Interface (vANI) when it matches all
expected authentication data configured in this vANI or the
'learned-serial-number' in the vANI state data. For
instance, if a vANI is configured with an
'expected-serial-number' and an 'expected-registration-id',
an ONU can be considered authenticated with this vANI only
when it matches both the 'expected-serial-number' and the
'expected-registration-id' of this vANI.";
        }
      }
      description
        "Method for authenticating an Optical Network Unit (ONU).";
    }

    typedef raman-mitigation-type {
      type enumeration {
        enum "raman-none" {
          value 0;
          description
            "No Raman mitigation is performed.";
        }
        enum "raman-8b10b" {
          value 1;
          description
            "For Raman mitigation, the 8B10B sublayer is introduced
between the downstream NG-PON2 physical interface (PHY)
adaptation interface and the optical interface.";
          reference
            "ITU-T G.989.2 clause IX.1";

        }
        enum "raman-miller" {
          value 2;
          description
            "For Raman mitigation, Miller code is used.";
          reference
            "ITU-T G.989.2 clause IX.2";

        }
      }
      description
        "NG-PON2 Raman mitigation coding schemes when using Radio
Frequency (RF) video overlay.";
      reference
        "ITU-T G.989.2 Appendix IX";

    }

    typedef ip-address-or-unresolved {
      type union {
        type inet:ip-address;
        type enumeration {
          enum "unresolved" {
            value 0;
            description
              "To be used when the URL cannot be resolved into an
IP address.";
          }
        }
      }
      description
        "A type meant for a leaf which is either an IP address or
reflects that no IP address is available.";
    }

    typedef onu-id {
      type uint32 {
        range "0..1020";
      }
      description
        "A type meant for ONU-IDs.";
    }

    typedef onu-serial-number {
      type string {
        pattern '[a-zA-Z]{4}[0-9a-fA-F]{8}';
      }
      description
        "A type meant for the serial number of an Optical Network Unit
(ONU).";
    }

    typedef int16-or-unknown {
      type union {
        type int16;
        type enumeration {
          enum "unknown" {
            value 0;
            description
              "To be used when a numerical value could not be
determined.";
          }
        }
      }
      description
        "A type meant for a leaf which indicates an int16 numerical
value or that indicates that a numerical value could not be
determined.";
    }

    typedef onu-registration-id {
      type string {
        length "0..72";
      }
      description
        "The registration ID of an Optical Network Unit (ONU) with each
octet represented as two hexadecimal characters.";
    }
  }  // module bbf-xpon-types