submodule bbf-vdsl-line-status-body {

    yang-version 1.1;

    belongs-to bbf-vdsl {
        prefix bbf-vdsl;
    }

    include bbf-vdsl-base;
    include bbf-vdsl-base-body;

    organization
      "Broadband Forum <https://www.broadband-forum.org>
Common YANG Work Area";

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

Editor:      Ken Kerpez, ASSIA, Inc.

Editor:      Joey Boyd, ADTRAN

PS Leader:   Sowrirajan Padmanabhan, Nokia

PS Leader:   Joey Boyd, ADTRAN

WA Director: Sven Ooghe, Nokia

WA Director: Joey Boyd, ADTRAN";

    description
      "This submodule contains a collection of YANG definitions for
managing Broadband Forum TR-252i3 clause 5.1 xDSL Line.

Copyright (c) 2016-2020 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-355a3; see
the TR itself for full legal notices.";

    revision "2020-10-13" {
      description
        "Amendment 3.
* Approval Date:    2020-10-13
* Publication Date: 2020-10-13.";
      reference
        "TR-355a3: YANG Modules for FTTdp Management
        	    <https://www.broadband-forum.org/download/
        		   TR-355_Amendment-3.pdf>";

    }

    revision "2019-10-21" {
      description
        "Amendment 2 Corrigendum 1.
* Approval Date:    2019-10-21
* Publication Date: 2019-10-21.";
      reference
        "TR-355a2c1: YANG Modules for FTTdp Management
        	    <https://www.broadband-forum.org/download/
        		   TR-355_Amendment-2.pdf>";

    }

    revision "2019-06-11" {
      description
        "Amendment 2.
* Approval Date:    2019-06-11
* Publication Date: 2019-06-11.";
      reference
        "TR-355a2: YANG Modules for FTTdp Management
        	  <https://www.broadband-forum.org/technical/download/
        		 TR-355_Amendment-2.pdf>";

    }

    revision "2018-10-01" {
      description
        "Amendment 1.
* Approval Date:    2018-10-01
* Publication Date: 2018-10-01.";
      reference
        "TR-355a1: YANG Modules for FTTdp Management
        	  <https://www.broadband-forum.org/technical/download/
        		 TR-355_Amendment-1.pdf>";

    }

    revision "2017-03-13" {
      description
        "Corrigendum 1 (fixes to the initial revision).
* Approval Date:    see revision date above.
* Publication Date: 2017-04-12.";
      reference
        "TR-355c1: YANG Modules for FTTdp Management
        	  <https://www.broadband-forum.org/technical/download/
        		 TR-355_Corrigendum-1.pdf>";

    }

    revision "2016-07-18" {
      description
        "Initial revision.
* Approval Date:    see revision date above.
* Publication Date: 2016-08-05.";
      reference
        "TR-355: YANG Modules for FTTdp Management
        	<https://www.broadband-forum.org/technical/download/
        		 TR-355.pdf>";

    }


    grouping line-status {
      description
        "The xDSL Line status object represents status/state objects
for an individual physical transmission line.";
      leaf xdsl-transmission-system {
        type xts-descriptor;
        description
          "This indicates the current xDSL Transmission System.";
        reference
          "ITU-T G.997.1 clause 7.3.1.1.1 xTU transmission system
          enabling (XTSE)";

      }

      leaf line-power-management-state {
        type enumeration {
          enum "L0" {
            value 0;
            description
              "Synchronized - This line state (L0) is when
the line has full transmission (i.e., showtime).";
          }
          enum "L1" {
            value 1;
            description
              "Power down data transmission - This line state
(L1) is when there is transmission on the line but the
net data rate is reduced (e.g., only for OAM and higher
layer connection and session control). This state
applies to [ITU-T G.992.2] only.";
          }
          enum "L2" {
            value 2;
            description
              "Power down data transmission - This line state
(L2) is when there is transmission on the line but the
net data rate is reduced (e.g., only for OAM and higher
layer connection and session control). This state
applies to [ITU-T G.992.3] and [ITU-T G.992.4] only.";
          }
          enum "L3" {
            value 3;
            description
              "No-power - This line state (L3) is when there
is no power transmitted on the line at all.";
          }
        }
        description
          "This parameter identifies the power management state of
the line.";
        reference
          "ITU-T G.997.1 clause 7.5.1.5 Line power management
          state";

      }

      leaf initialization-success-failure-cause {
        type enumeration {
          enum "successful" {
            value 0;
            description "Successful.";
          }
          enum "config-error" {
            value 1;
            description
              "Configuration error. This error occurs with
inconsistencies in configuration parameters. For
example, when the line is initialized in an xDSL
transmission system where an xDSL Transceiver Unit (xTU)
does not support the configured maximum delay or the
configured minimum or maximum data rate for one or more
bearer channels.";
          }
          enum "config-not-feasible" {
            value 2;
            description
              "Configuration not feasible on the line. This error
occurs if the minimum data rate cannot be reached on
the line with the minimum noise margin, maximum Power
Spectral Density (PSD) level, maximum delay and maximum
bit error ratio for one or more bearer channels.";
          }
          enum "communication-problem" {
            value 3;
            description
              "Communication problem. This error occurs, for example,
due to corrupted messages or bad syntax messages or if
no common mode can be selected in the G.994.1
handshaking procedure or due to a timeout.";
          }
          enum "no-far-end-xtu-detected" {
            value 4;
            description
              "No peer xDSL Transceiver Unit (xTU) detected. This error
occurs if the peer xTU is not powered or not connected or
if the line is too long to allow detection of a peer
xTU.";
          }
          enum "unknown" {
            value 5;
            description
              "Any other or unknown initialization failure cause.";
          }
          enum "rtx-not-selected" {
            value 6;
            description
              "ITU T G.998.4 retransmission mode was not selected
while RTX_MODE = FORCED or with
RTX_MODE = RTX_TESTMODE.";
          }
        }
        description
          "This parameter indicates whether the last full
initialization procedure was successful. If the last
initialization procedure was not successful, this
parameter provides the reason.";
        reference
          "ITU-T G.997.1 clause 7.5.1.6 Initialization
          success/failure cause";

      }

      leaf vdsl2-lr-actual-op-type {
        if-feature vdsl2-lr;
        type enumeration {
          enum "disabled" {
            value 0;
            description
              "Operation according to VDSL2 Long Reach (VDSL2-LR) mode
is disabled.";
          }
          enum "short" {
            value 1;
            description
              "Operating according to VDSL2 Long Reach (VDSL2-LR) short
loop operation type.";
          }
          enum "medium" {
            value 2;
            description
              "Operation according to VDSL2 Long Reach (VDSL2-LR) medium
loop operation type.";
          }
          enum "long" {
            value 3;
            description
              "Operation according to VDSL2 Long Reach (VDSL2-LR) long
loop operation type.";
          }
        }
        description
          "This parameter reports the actual operation type
of the VDSL2 Long Reach (VDSL2-LR) mode.";
        reference
          "ITU-T G.997.1 clause 7.5.1.44.1 VDSL2-LR actual
          operation type (VDSL2-LR_ACTOPTYPE)";

      }
    }  // grouping line-status
  }  // submodule bbf-vdsl-line-status-body