<?xml version="1.0" encoding="UTF-8"?>
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  Device:2 Root Data Model: Common Object definitions [Logical]

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<dm:document
    xmlns:dm="urn:broadband-forum-org:cwmp:datamodel-1-10"
    xmlns:dmr="urn:broadband-forum-org:cwmp:datamodel-report-1-0"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="
      urn:broadband-forum-org:cwmp:datamodel-1-10
        https://www.broadband-forum.org/cwmp/cwmp-datamodel-1-10.xsd
      urn:broadband-forum-org:cwmp:datamodel-report-1-0
        https://www.broadband-forum.org/cwmp/cwmp-datamodel-report-1-0.xsd"
    spec="urn:broadband-forum-org:tr-181-2-20-0-logical"
    file="tr-181-2-20-0-logical.xml">

  <import file="tr-069-biblio.xml" spec="urn:broadband-forum-org:tr-069"/>

  <import file="tr-106-types.xml" spec="urn:broadband-forum-org:tr-106">
    <component name="Alias"/>
  </import>

  <import file="tr-181-2-root.xml"
      spec="urn:broadband-forum-org:tr-181-2-20-root">
    <component name="Root"/>
  </import>

  <import file="tr-181-2-interface.xml"
    spec="urn:broadband-forum-org:tr-181-2-20-interface">
    <component name="Layer3Interface"/>
  </import>

  <component name="Logical">
    <object name="Device.Logical." access="readOnly" minEntries="1"
        maxEntries="1" version="2.16">
      <description>
        Logical object. This object models several Logical interface objects,
        each representing a different stack layer, including:
        {{object|Interface}}. {{object|Interface}} is a logical interface which
        can point to other stackable interface layers.

        The intention of the logical interface is to simplify the configuration
        management of individual {{bibref|TR-181i2}} services. Instead of
        configuring the individual network services with a physical interface
        and deal with reconfiguration problems that may arise from switching
        between WAN interfaces. The intention is that the network services are
        configured with a logical interface and that this configuration stays
        unchanged during the switching between WAN interfaces. The software
        service (For example a WAN mode manger.) responsible for handling the
        WAN interface changes must then only care about rewriting the
        LowerLayers parameter of the Logical Interface Objects.
      </description>
      <component ref="Layer3Interface" version="2.16"/>
    </object>
    <object base="Device.Logical.Interface.{i}.">
      <description action="replace">
        Logical interface table (a stackable interface object as described in
        {{bibref|TR-181i2|Section 4.2}}). This table models only logical
        interfaces.
      </description>
      <parameter base="Name" access="readWrite">
        <description>
          The textual name of the logical interface as assigned by a static
          configuration file or dynamically by a controller.
        </description>
      </parameter>
    </object>
    <object base="Device.Logical.Interface.{i}.Stats.">
      <description action="append">
        This information SHOULD be mirrored or aggregated from the active
        underlying interfaces.
      </description>
    </object>
    <profile name="Logical:1" version="2.16">
      <object ref="Device.Logical." requirement="present">
        <parameter ref="InterfaceNumberOfEntries" requirement="readOnly"/>
      </object>
      <object ref="Device.Logical.Interface.{i}." requirement="present">
        <parameter ref="Enable" requirement="readWrite"/>
        <parameter ref="Status" requirement="readOnly"/>
        <parameter ref="Alias" requirement="writeOnceReadOnly"/>
        <parameter ref="Name" requirement="readOnly"/>
        <parameter ref="LastChange" requirement="readOnly"/>
        <parameter ref="LowerLayers" requirement="readWrite"/>
      </object>
      <object ref="Device.Logical.Interface.{i}.Stats." requirement="present">
        <parameter ref="BytesSent" requirement="readOnly"/>
        <parameter ref="BytesReceived" requirement="readOnly"/>
        <parameter ref="PacketsSent" requirement="readOnly"/>
        <parameter ref="PacketsReceived" requirement="readOnly"/>
        <parameter ref="ErrorsSent" requirement="readOnly"/>
        <parameter ref="ErrorsReceived" requirement="readOnly"/>
      </object>
    </profile>
  </component>

  <model name="Logical:2.20">
    <component ref="Root"/>
    <component ref="Logical"/>
  </model>
</dm:document>
