module ietf-service-assurance-interface {

    yang-version 1.1;

    namespace
      "urn:ietf:params:xml:ns:yang:ietf-service-assurance-interface";

    prefix sain-interface;

    import ietf-service-assurance {
      prefix sain;
      reference
        "RFC 9418: YANG Modules for Service Assurance";


    }

    organization "IETF OPSAWG Working Group";

    contact
      "WG Web:   <https://datatracker.ietf.org/wg/opsawg/>
     WG List:  <mailto:opsawg@ietf.org>
     Author:   Benoit Claise  <mailto:benoit.claise@huawei.com>
     Author:   Jean Quilbeuf   <mailto:jean.quilbeuf@huawei.com>";

    description
      "This module extends the ietf-service-assurance module to add
     support for the interface subservice.

     It checks whether an interface is healthy.

     Copyright (c) 2023 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 Revised BSD License
     set forth in Section 4.c of the IETF Trust's Legal Provisions
     Relating to IETF Documents
     (https://trustee.ietf.org/license-info).

     This version of this YANG module is part of RFC 9418; see the
     RFC itself for full legal notices.  ";

    revision "2023-07-11" {
      description "Initial revision.";
      reference
        "RFC 9418: YANG Modules for Service Assurance";

    }


    identity interface-type {
      base sain:subservice-base;
      description
        "Checks whether an interface is healthy.";
    }

    augment /sain:subservices/sain:subservice/sain:parameter {
      when
        "derived-from-or-self(sain:type, 'interface-type')";
      description
        "Augments the parameter choice from ietf-service-assurance
       module with a case specific to the interface subservice.";
      container parameters {
        description
          "Parameters for the interface subservice type.";
        leaf device {
          type string;
          mandatory true;
          description
            "Device supporting the interface.";
        }

        leaf interface {
          type string;
          mandatory true;
          description
            "Name of the interface.";
        }
      }  // container parameters
    }
  }  // module ietf-service-assurance-interface