submodule openconfig-qos-mem-mgmt {

    yang-version 1;

    belongs-to openconfig-qos {
        prefix oc-qos;
    }

    import openconfig-extensions {
      prefix oc-ext;
    }
    import openconfig-types {
      prefix oc-types;
    }

    include openconfig-qos-elements;

    organization "OpenConfig working group";

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

    description
      "This submodule defines configuration and operational state
    data associated related to queue management features of QoS
    particularly:

    - buffer-allocation-profiles: these profiles are applied on
      a per-interface basis, and determine how memory is to be managed
      across the queues that are instantiated on the system.

    - queue-management-profiles: these profiles are applied on a per-interface
      per-queue basis, and determine how packets are marked/dropped within
      the queue instantiation.";

    revision "2023-10-13" {
      description
        "Fix revision statement date";
      reference
        "0.11.2";

    }

    revision "2023-10-08" {
      description
        "Clarification on WRED weight in case it is not present";
      reference
        "0.11.1";

    }

    revision "2023-09-15" {
      description
        "Add support for ECN counters";
      reference
        "0.11.0";

    }

    revision "2023-07-26" {
      description
        "Add buffer management parameters in time unts (microseconds).
       Make profiles reusable across LAGs and PHY of different speed";
      reference
        "0.10.0";

    }

    revision "2023-04-25" {
      description
        "Clarify interface-ref usage.";
      reference
        "0.9.1";

    }

    revision "2023-04-17" {
      description
        "Add support for relative RED min-threshold and max-threshold values.";
      reference
        "0.9.0";

    }

    revision "2023-02-17" {
      description "Add queue identifier.";
      reference
        "0.8.0";

    }

    revision "2023-02-08" {
      description
        "Remove incorrect output placement of interface-ref";
      reference
        "0.7.0";

    }

    revision "2023-01-28" {
      description
        "Split groupings in interfaces for better leaf reuse.";
      reference
        "0.6.1";

    }

    revision "2022-09-13" {
      description
        "Add queue octet drop counter.";
      reference
        "0.6.0";

    }

    revision "2021-08-28" {
      description
        "Revision updating memory management profile WRED and RED configuration.";
      reference
        "0.5.0";

    }

    revision "2021-06-28" {
      description
        "Adding buffer carving policies per interface per queue.";
      reference
        "0.4.0";

    }

    revision "2021-04-28" {
      description
        "Revision updating buffer management and queue management
      configuration.";
      reference
        "0.3.0";

    }

    oc-ext:openconfig-version "0.11.2";

    identity SHARED_BUFFER_LIMIT_TYPE {
      description
        "Base identity for supported shared buffer limit types.";
    }

    identity STATIC {
      base SHARED_BUFFER_LIMIT_TYPE;
      description
        "The maximum buffer space that the queue is allowed to use from the shared
       buffer is specified as a static-limit which is expressed in bytes.";
    }

    identity DYNAMIC_BASED_ON_SCALING_FACTOR {
      base SHARED_BUFFER_LIMIT_TYPE;
      description
        "The maximum buffer space that the queue is allowed to use from the shared
       buffer is dynamically determined based on the current usage pattern of the
       shared buffer and a dynamic-limit which is expressed as a scaling factor
       on the free space in the shared buffer.";
    }
  }  // submodule openconfig-qos-mem-mgmt