diff --git a/Netdisco/lib/App/Netdisco/Web/Plugin/Report/HalfDuplex.pm b/Netdisco/lib/App/Netdisco/Web/Plugin/Report/HalfDuplex.pm
new file mode 100644
index 00000000..7a5c7a12
--- /dev/null
+++ b/Netdisco/lib/App/Netdisco/Web/Plugin/Report/HalfDuplex.pm
@@ -0,0 +1,29 @@
+package App::Netdisco::Web::Plugin::Report::HalfDuplex;
+
+use Dancer ':syntax';
+use Dancer::Plugin::Ajax;
+use Dancer::Plugin::DBIC;
+use Dancer::Plugin::Auth::Extensible;
+
+use App::Netdisco::Web::Plugin;
+
+register_report({
+  category => 'Port',
+  tag => 'halfduplex',
+  label => 'Ports in Half Duplex Mode',
+});
+
+ajax '/ajax/content/report/halfduplex' => require_login sub {
+    my $set = schema('netdisco')->resultset('DevicePort')->search(
+      { up => 'up', duplex => { '-ilike' => 'half' } },
+      { order_by => [qw/device.dns port/], prefetch => 'device' },
+    );
+    return unless $set->count;
+
+    content_type('text/html');
+    template 'ajax/report/halfduplex.tt', {
+      results => $set,
+    }, { layout => undef };
+};
+
+true;
diff --git a/Netdisco/share/config.yml b/Netdisco/share/config.yml
index 8d2fec9b..ccf7d041 100644
--- a/Netdisco/share/config.yml
+++ b/Netdisco/share/config.yml
@@ -34,6 +34,7 @@ path: '/'
 web_plugins:
   - Inventory
   - Report::PortUtilization
+  - Report::HalfDuplex
   - Report::DuplexMismatch
   - AdminTask::PseudoDevice
   - AdminTask::Topology
diff --git a/Netdisco/share/views/ajax/report/duplexmismatch.tt b/Netdisco/share/views/ajax/report/duplexmismatch.tt
index f9632348..1d9ad1c4 100644
--- a/Netdisco/share/views/ajax/report/duplexmismatch.tt
+++ b/Netdisco/share/views/ajax/report/duplexmismatch.tt
@@ -2,10 +2,10 @@
   <thead>
     <tr>
       <th class="nd_center-cell">Left Device</th>
-      <th class="nd_center-cell">Interface</th>
+      <th class="nd_center-cell">Port</th>
       <th class="nd_center-cell">Duplex</th>
       <th class="nd_center-cell">Right Device</th>
-      <th class="nd_center-cell">Interface</th>
+      <th class="nd_center-cell">Port</th>
       <th class="nd_center-cell">Duplex</th>
     </tr>
   </thead>
diff --git a/Netdisco/share/views/ajax/report/halfduplex.tt b/Netdisco/share/views/ajax/report/halfduplex.tt
new file mode 100644
index 00000000..f5594292
--- /dev/null
+++ b/Netdisco/share/views/ajax/report/halfduplex.tt
@@ -0,0 +1,23 @@
+<table class="table table-bordered table-condensed table-striped nd_floatinghead">
+  <thead>
+    <tr>
+      <th>Device</th>
+      <th class="nd_center-cell">Port</th>
+      <th class="nd_center-cell">Description</th>
+      <th class="nd_center-cell">Duplex</th>
+    </tr>
+  </thead>
+  </tbody>
+    [% WHILE (row = results.next) %]
+    <tr>
+      <td>[% row.device.dns || row.device.ip | html_entity %]</td>
+      <td class="nd_center-cell"><a class="nd_linkcell"
+        href="[% device_ports %]&q=[% row.device.dns || row.device.ip | uri %]&f=[% row.port | uri %]&c_duplex=on">
+          [% row.port | html_entity %]</a></td>
+      <td class="nd_center-cell">[% row.name | html_entity %]</td>
+      <td class="nd_center-cell">[% row.duplex.ucfirst | html_entity %]</td>
+    </tr>
+    [% END %]
+  </tbody>
+</table>
+