diff --git a/openstack/baremetal/v1/port.py b/openstack/baremetal/v1/port.py
index 2105508e6..9db9fc12e 100644
--- a/openstack/baremetal/v1/port.py
+++ b/openstack/baremetal/v1/port.py
@@ -76,6 +76,10 @@ class Port(_common.Resource):
     #: The UUID of PortGroup this port belongs to. Added in API microversion
     #: 1.24.
     port_group_id = resource.Body('portgroup_uuid')
+    #: Read-only. The parent port trunk details dictionary, with the trunk ID
+    # and the subports information (port ID, segmentation ID and segmentation
+    # type).
+    trunk_details = resource.Body('trunk_details', type=dict)
     #: Timestamp at which the port was last updated.
     updated_at = resource.Body('updated_at')
 
diff --git a/releasenotes/notes/add-port-trunk-details-ed2d98a36ce70c0f.yaml b/releasenotes/notes/add-port-trunk-details-ed2d98a36ce70c0f.yaml
new file mode 100644
index 000000000..ccfbffc75
--- /dev/null
+++ b/releasenotes/notes/add-port-trunk-details-ed2d98a36ce70c0f.yaml
@@ -0,0 +1,7 @@
+---
+features:
+  - |
+    Add ``trunk_details`` attribute to ``port`` resource. This attribute is
+    a dictionary with the trunk ID and a list of subports. Each element in the
+    subports list is a dictionary with the subport ID, the segmentation type
+    and segmentation ID.