module openconfig-alarm-types {

    yang-version 1;

    namespace
      "http://openconfig.net/yang/alarms/types";

    prefix oc-alarm-types;

    import openconfig-extensions {
      prefix oc-ext;
    }

    organization "OpenConfig working group";

    contact
      "OpenConfig working group
www.openconfig.net";

    description
      "This module defines operational state data related to alarms
that the device is reporting.

This model reuses some data items defined in the draft IETF
YANG Alarm Module:
https://tools.ietf.org/html/draft-vallin-netmod-alarm-module-02

Portions of this code were derived from the draft IETF YANG Alarm
Module. Please reproduce this note if possible.

IETF code is subject to the following copyright and license:
Copyright (c) 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 "2018-11-21" {
      description
        "Add OpenConfig module metadata extensions.";
      reference
        "0.2.1";

    }

    revision "2018-01-16" {
      description
        "Moved alarm identities into separate types module";
      reference
        "0.2.0";

    }

    oc-ext:openconfig-version "0.2.1";
    oc-ext:regexp-posix;
    oc-ext:catalog-organization "openconfig";
    oc-ext:origin "openconfig";

    identity OPENCONFIG_ALARM_TYPE_ID {
      description
        "Base identity for alarm type ID profiles";
    }

    identity AIS {
      base OPENCONFIG_ALARM_TYPE_ID;
      description
        "Defines an alarm indication signal type of alarm";
    }

    identity EQPT {
      base OPENCONFIG_ALARM_TYPE_ID;
      description
        "Defines an equipment related type of alarm that is specific
to the physical hardware";
    }

    identity LOS {
      base OPENCONFIG_ALARM_TYPE_ID;
      description
        "Defines a loss of signal type of alarm";
    }

    identity OTS {
      base OPENCONFIG_ALARM_TYPE_ID;
      description
        "Defines a optical transport signal type of alarm";
    }

    identity OPENCONFIG_ALARM_SEVERITY {
      description
        "Base identity for alarm severity profiles. Derived
identities are based on contents of the draft
IETF YANG Alarm Module";
      reference
        "IETF YANG Alarm Module: Draft - typedef severity
        https://tools.ietf.org/html/draft-vallin-netmod-alarm-module-02";

    }

    identity UNKNOWN {
      base OPENCONFIG_ALARM_SEVERITY;
      description
        "Indicates that the severity level could not be determined.
This level SHOULD be avoided.";
    }

    identity MINOR {
      base OPENCONFIG_ALARM_SEVERITY;
      description
        "Indicates the existence of a non-service affecting fault
condition and that corrective action should be taken in
order to prevent a more serious (for example, service
affecting) fault. Such a severity can be reported, for
example, when the detected alarm condition is not currently
degrading the capacity of the resource";
    }

    identity WARNING {
      base OPENCONFIG_ALARM_SEVERITY;
      description
        "Indicates the detection of a potential or impending service
affecting fault, before any significant effects have been felt.
Action should be taken to further diagnose (if necessary) and
correct the problem in order to prevent it from becoming a more
serious service affecting fault.";
    }

    identity MAJOR {
      base OPENCONFIG_ALARM_SEVERITY;
      description
        "Indicates that a service affecting condition has developed
and an urgent corrective action is required. Such a severity
can be reported, for example, when there is a severe
degradation in the capability of the resource and its full
capability must be restored.";
    }

    identity CRITICAL {
      base OPENCONFIG_ALARM_SEVERITY;
      description
        "Indicates that a service affecting condition has occurred
and an immediate corrective action is required. Such a
severity can be reported, for example, when a resource becomes
totally out of service and its capability must be restored.";
    }
  }  // module openconfig-alarm-types