module bbf-qos-enhanced-scheduling {

    yang-version 1.1;

    namespace
      "urn:bbf:yang:bbf-qos-enhanced-scheduling";

    prefix bbf-qos-sched;

    import bbf-yang-types {
      prefix bbf-yang;
    }
    import ietf-interfaces {
      prefix if;
    }
    import bbf-qos-traffic-mngt {
      prefix bbf-qos-tm;
    }
    import bbf-qos-shaping {
      prefix bbf-qos-shap;
    }

    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:      Nick Hancock, ADTRAN

     Editor:      Ludwig Pauwels, Nokia

     PS Leader:   Joey Boyd, ADTRAN

     WA Director: Joey Boyd, ADTRAN

     WA Director: Sven Ooghe, Nokia";

    description
      "This module contains a collection of YANG definitions for
     supporting the Broadband Forum requirements on the management of
     Quality of Service (QoS) as applicable to access network
     equipment. As such, this module is specific to access network
     equipment (e.g., BBF-specified Access Nodes and FTTdp DPUs).

     Specifically, this module augments interfaces to add additional
     configuration to manage enhanced traffic scheduling.

     Copyright (c) 2017-2022, 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-383a5; see
     the TR itself for full legal notices.";

    revision "2022-03-01" {
      description
        "Amendment 5.
       * Approval Date:    2022-03-01.
       * Publication Date: 2022-03-01.";
      reference
        "TR-383a5: Common YANG Modules
        	  <https://www.broadband-forum.org/technical/download/
        		   TR-383_Amendment-5.pdf>";

    }

    revision "2021-06-02" {
      description
        "Amendment 4.
       * Approval Date:    2021-06-02.
       * Publication Date: 2021-06-02.";
      reference
        "TR-383a4: Common YANG Modules
        	  <https://www.broadband-forum.org/technical/download/
        		   TR-383_Amendment-4.pdf>";

    }

    revision "2020-10-13" {
      description
        "Amendment 3.
       * Approval Date:    2020-10-13.
       * Publication Date: 2020-10-13.";
      reference
        "TR-383a3: Common YANG Modules
        	  <https://www.broadband-forum.org/technical/download/
        		   TR-383_Amendment-3.pdf>";

    }

    revision "2018-07-13" {
      description
        "Amendment 1.
       * Approval Date:    2018-06-04.
       * Publication Date: see revision date above.";
      reference
        "TR-383: Common YANG Modules
        	<https://www.broadband-forum.org/technical/download/
        		 TR-383_Amendment-1.pdf>";

    }


    feature child-traffic-type {
      description
        "Indicates support for configuring the type of traffic a
       scheduler consumes from its child.";
    }

    feature child-scheduler-queue-references {
      description
        "Indicates support for configuring references from a parent
       scheduler to queues within a child scheduler.";
    }

    feature dual-rate-scheduling-from-scheduler {
      description
        "Indicates support for dual rate scheduling, i.e. configuring
       from a parent scheduler a separate priority and/or weight for
       the CIR and EIR traffic from a single child scheduler.";
    }

    identity traffic-type {
      description
        "Defines types of traffic coming from a child scheduler or
       queue.";
    }

    identity pir {
      base traffic-type;
      description
        "All traffic which is shaped to a shaper's configured Peak
       Information Rate (PIR).";
    }

    identity cir {
      base traffic-type;
      description
        "All traffic which is shaped to a shaper's configured Committed
       Information Rate (CIR).";
    }

    identity eir {
      base traffic-type;
      description
        "All traffic which is shaped to a shaper's configured Peak
       Information Rate (PIR) but does not include the traffic shaped
       to the Committed Information Rate (CIR).";
    }
  }  // module bbf-qos-enhanced-scheduling