feat(dcim): Show peer connections for LAG members

Add `InterfaceLAGMemberTable` for the LAG Members panel on
LAG interface detail views. The table includes the parent device,
member interface/type, and a peer column which renders
connected endpoints (including the peer LAG when present).

Fixes #19869

netbox/dcim/tables/devices.py

@@ -27,6 +27,7 @@ __all__ = (
     'DeviceTable',
     'FrontPortTable',
     'InterfaceTable',
+    'InterfaceLAGMemberTable',
     'InventoryItemRoleTable',
     'InventoryItemTable',
     'MACAddressTable',
@@ -689,6 +690,33 @@ class InterfaceTable(BaseInterfaceTable, ModularDeviceComponentTable, PathEndpoi
         default_columns = ('pk', 'name', 'device', 'label', 'enabled', 'type', 'description')
 
 
+class InterfaceLAGMemberTable(PathEndpointTable, NetBoxTable):
+    parent = tables.Column(
+        verbose_name=_('Parent'),
+        accessor=Accessor('device'),
+        linkify=True,
+    )
+    name = tables.Column(
+        verbose_name=_('Name'),
+        linkify=True,
+        order_by=('_name',),
+    )
+    connection = columns.TemplateColumn(
+        accessor='connected_endpoints',
+        template_code=INTERFACE_LAG_MEMBERS_LINKTERMINATION,
+        verbose_name=_('Peer'),
+        orderable=False,
+    )
+    tags = columns.TagColumn(
+        url_name='dcim:interface_list'
+    )
+
+    class Meta(NetBoxTable.Meta):
+        model = models.Interface
+        fields = ('pk', 'parent', 'name', 'type', 'connection')
+        default_columns = ('pk', 'parent', 'name', 'type', 'connection')
+
+
 class DeviceInterfaceTable(InterfaceTable):
     name = tables.TemplateColumn(
         verbose_name=_('Name'),

netbox/dcim/tables/template_code.py

@@ -24,6 +24,24 @@ INTERFACE_LINKTERMINATION = """
 {% else %}""" + LINKTERMINATION + """{% endif %}
 """
 
+INTERFACE_LAG_MEMBERS_LINKTERMINATION = """
+{% for termination in value %}
+  {% if termination.parent_object %}
+    <a href="{{ termination.parent_object.get_absolute_url }}">{{ termination.parent_object }}</a>
+    <i class="mdi mdi-chevron-right"></i>
+  {% endif %}
+  <a href="{{ termination.get_absolute_url }}">{{ termination }}</a>
+  {% if termination.lag %}
+    <i class="mdi mdi-chevron-right"></i>
+    <a href="{{ termination.lag.get_absolute_url }}">{{ termination.lag }}</a>
+    <span class="text-muted">(LAG)</span>
+  {% endif %}
+  {% if not forloop.last %}<br />{% endif %}
+{% empty %}
+  {{ ''|placeholder }}
+{% endfor %}
+"""
+
 CABLE_LENGTH = """
 {% load helpers %}
 {% if record.length %}{{ record.length|floatformat:"-2" }} {{ record.length_unit }}{% endif %}

netbox/dcim/views.py

@@ -3135,6 +3135,14 @@ class InterfaceView(generic.ObjectView):
         )
         child_interfaces_table.configure(request)
 
+        # Get LAG interfaces
+        lag_interfaces = Interface.objects.restrict(request.user, 'view').filter(lag=instance)
+        lag_interfaces_table = tables.InterfaceLAGMemberTable(
+            lag_interfaces,
+            orderable=False
+        )
+        lag_interfaces_table.configure(request)
+
         # Get assigned VLANs and annotate whether each is tagged or untagged
         vlans = []
         if instance.untagged_vlan is not None:
@@ -3164,6 +3172,7 @@ class InterfaceView(generic.ObjectView):
             'bridge_interfaces': bridge_interfaces,
             'bridge_interfaces_table': bridge_interfaces_table,
             'child_interfaces_table': child_interfaces_table,
+            'lag_interfaces_table': lag_interfaces_table,
             'vlan_table': vlan_table,
             'vlan_translation_table': vlan_translation_table,
         }

netbox/extras/tables/tables.py

@@ -43,7 +43,7 @@ IMAGEATTACHMENT_IMAGE = """
   <a href="{{ record.image.url }}" target="_blank" class="image-preview" data-bs-placement="top">
     <i class="mdi mdi-image"></i></a>
 {% endif %}
-<a href="{{ record.get_absolute_url }}">{{ record }}</a>
+<a href="{{ record.get_absolute_url }}">{{ record.filename|truncate_middle:16 }}</a>
 """
 
 NOTIFICATION_ICON = """

netbox/ipam/tables/ip.py

@@ -370,11 +370,6 @@ class AnnotatedIPAddressTable(IPAddressTable):
         verbose_name=_('IP Address')
     )
 
-    def render_pk(self, value, record, bound_column):
-        if type(record) is not self._meta.model:
-            return ''
-        return bound_column.column.render(value, bound_column, record)
-
     class Meta(IPAddressTable.Meta):
         pass
 

netbox/ipam/tests/test_tables.py

@@ -1,41 +0,0 @@
-from django.test import RequestFactory, TestCase
-from netaddr import IPNetwork
-
-from ipam.models import IPAddress, IPRange, Prefix
-from ipam.tables import AnnotatedIPAddressTable
-from ipam.utils import annotate_ip_space
-
-
-class AnnotatedIPAddressTableTest(TestCase):
-
-    @classmethod
-    def setUpTestData(cls):
-        cls.prefix = Prefix.objects.create(
-            prefix=IPNetwork('10.1.1.0/24'),
-            status='active'
-        )
-
-        cls.ip_address = IPAddress.objects.create(
-            address='10.1.1.1/24',
-            status='active'
-        )
-
-        cls.ip_range = IPRange.objects.create(
-            start_address=IPNetwork('10.1.1.2/24'),
-            end_address=IPNetwork('10.1.1.10/24'),
-            status='active'
-        )
-
-    def test_ipaddress_has_checkbox_iprange_does_not(self):
-        data = annotate_ip_space(self.prefix)
-        table = AnnotatedIPAddressTable(data, orderable=False)
-        table.columns.show('pk')
-
-        request = RequestFactory().get('/')
-        html = table.as_html(request)
-
-        ipaddress_checkbox_count = html.count(f'name="pk" value="{self.ip_address.pk}"')
-        self.assertEqual(ipaddress_checkbox_count, 1)
-
-        iprange_checkbox_count = html.count(f'name="pk" value="{self.ip_range.pk}"')
-        self.assertEqual(iprange_checkbox_count, 0)

netbox/ipam/utils.py

@@ -49,9 +49,6 @@ def add_requested_prefixes(parent, prefix_list, show_available=True, show_assign
     if prefix_list and show_available:
 
         # Find all unallocated space, add fake Prefix objects to child_prefixes.
-        # IMPORTANT: These are unsaved Prefix instances (pk=None). If this is ever changed to use
-        # saved Prefix instances with real pks, bulk delete will fail for mixed-type selections
-        # due to single-model form validation. See: https://github.com/netbox-community/netbox/issues/21176
         available_prefixes = netaddr.IPSet(parent) ^ netaddr.IPSet([p.prefix for p in prefix_list])
         available_prefixes = [Prefix(prefix=p, status=None) for p in available_prefixes.iter_cidrs()]
         child_prefixes = child_prefixes + available_prefixes

netbox/templates/dcim/interface.html

@@ -370,33 +370,6 @@
           </table>
         </div>
       {% endif %}
-      {% if object.is_lag %}
-        <div class="card">
-          <h2 class="card-header">{% trans "LAG Members" %}</h2>
-          <table class="table table-hover">
-            <thead>
-              <tr>
-                <th>{% trans "Parent" %}</th>
-                <th>{% trans "Interface" %}</th>
-                <th>{% trans "Type" %}</th>
-              </tr>
-            </thead>
-            <tbody>
-              {% for member in object.member_interfaces.all %}
-                <tr>
-                  <td>{{ member.device|linkify }}</td>
-                  <td>{{ member|linkify }}</td>
-                  <td>{{ member.get_type_display }}</td>
-                </tr>
-              {% empty %}
-                <tr>
-                  <td colspan="3" class="text-muted">{% trans "No member interfaces" %}</td>
-                </tr>
-              {% endfor %}
-            </tbody>
-          </table>
-        </div>
-      {% endif %}
       {% include 'ipam/inc/panels/fhrp_groups.html' %}
       {% include 'dcim/inc/panels/inventory_items.html' %}
       {% plugin_right_page object %}
@@ -441,6 +414,13 @@
       {% include 'inc/panel_table.html' with table=vlan_table heading="VLANs" %}
     </div>
   </div>
+  {% if object.is_lag %}
+    <div class="row mb-3">
+      <div class="col col-md-12">
+        {% include 'inc/panel_table.html' with table=lag_interfaces_table heading="LAG Members" %}
+      </div>
+    </div>
+  {% endif %}
   {% if object.vlan_translation_policy %}
     <div class="row mb-3">
       <div class="col col-md-12">

netbox/translations/en/LC_MESSAGES/django.po

@@ -8,7 +8,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: PACKAGE VERSION\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2026-01-21 05:07+0000\n"
+"POT-Creation-Date: 2026-01-22 05:07+0000\n"
 "PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
 "Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
 "Language-Team: LANGUAGE <LL@li.org>\n"
@@ -12037,7 +12037,7 @@ msgstr ""
 msgid "date synced"
 msgstr ""
 
-#: netbox/netbox/models/features.py:623
+#: netbox/netbox/models/features.py:621
 #, python-brace-format
 msgid "{class_name} must implement a sync_data() method."
 msgstr ""
@@ -13935,8 +13935,8 @@ msgid "No VLANs Assigned"
 msgstr ""
 
 #: netbox/templates/dcim/inc/interface_vlans_table.html:44
-#: netbox/templates/ipam/prefix_list.html:16
-#: netbox/templates/ipam/prefix_list.html:33
+#: netbox/templates/ipam/inc/max_depth.html:11
+#: netbox/templates/ipam/inc/max_length.html:11
 msgid "Clear"
 msgstr ""
 
@@ -15053,8 +15053,8 @@ msgstr ""
 msgid "Date Added"
 msgstr ""
 
-#: netbox/templates/ipam/aggregate/prefixes.html:8
-#: netbox/templates/ipam/prefix/prefixes.html:8
+#: netbox/templates/ipam/aggregate/prefixes.html:10
+#: netbox/templates/ipam/prefix/prefixes.html:10
 #: netbox/templates/ipam/role.html:10
 msgid "Add Prefix"
 msgstr ""
@@ -15083,6 +15083,14 @@ msgstr ""
 msgid "Bulk Create"
 msgstr ""
 
+#: netbox/templates/ipam/inc/max_depth.html:6
+msgid "Max Depth"
+msgstr ""
+
+#: netbox/templates/ipam/inc/max_length.html:6
+msgid "Max Length"
+msgstr ""
+
 #: netbox/templates/ipam/inc/panels/fhrp_groups.html:10
 msgid "Create Group"
 msgstr ""
@@ -15184,14 +15192,6 @@ msgstr ""
 msgid "Hide Depth Indicators"
 msgstr ""
 
-#: netbox/templates/ipam/prefix_list.html:11
-msgid "Max Depth"
-msgstr ""
-
-#: netbox/templates/ipam/prefix_list.html:28
-msgid "Max Length"
-msgstr ""
-
 #: netbox/templates/ipam/rir.html:10
 msgid "Add Aggregate"
 msgstr ""

netbox/utilities/templatetags/builtins/filters.py

@@ -252,3 +252,16 @@ def isodatetime(value, spec='seconds'):
     else:
         return ''
     return mark_safe(f'<span title="{naturaltime(value)}">{text}</span>')
+
+
+@register.filter
+def truncate_middle(value, length):
+    if len(value) <= length:
+        return value
+
+    # Calculate split points for the two parts
+    half_len = (length - 1) // 2  # 1 for the ellipsis
+    first_part = value[:half_len]
+    second_part = value[len(value) - (length - 1 - half_len):]
+
+    return mark_safe(f"{first_part}&hellip;{second_part}")