diff --git a/yaml/xyz/openbmc_project/Inventory/Connector/Port.interface.yaml b/yaml/xyz/openbmc_project/Inventory/Connector/Port.interface.yaml
new file mode 100644
index 0000000..eefd9b7
--- /dev/null
+++ b/yaml/xyz/openbmc_project/Inventory/Connector/Port.interface.yaml
@@ -0,0 +1,11 @@
+description: >
+    This defines a Port of a switch, controller, chassis, or any other device
+    that could be connected to another entity.
+
+association:
+    name: connected_to
+    description: >
+        Objects that are connected at the other end of the link.
+    reverse_name: connecting
+    required_endpoint_interfaces:
+        - xyz.openbmc_project.Inventory.Item.FabricAdapter
diff --git a/yaml/xyz/openbmc_project/Inventory/Item/FabricAdapter.interface.yaml b/yaml/xyz/openbmc_project/Inventory/Item/FabricAdapter.interface.yaml
index 315f6bb..cd3cf91 100644
--- a/yaml/xyz/openbmc_project/Inventory/Item/FabricAdapter.interface.yaml
+++ b/yaml/xyz/openbmc_project/Inventory/Item/FabricAdapter.interface.yaml
@@ -2,3 +2,12 @@
     Implement to provide fabric adapter attributes. A physical fabric adapter
     capable of connecting to an interconnect fabric. Examples include but are
     not limited to Ethernet, NVMe over Fabrics, etc.
+
+associations:
+    name: connecting
+    description: >
+        Objects that implement FabricAdapter can optionally implement the
+        connecting association to  provide links to one or more Ports.
+    reverse_name: connected_to
+    required_endpoint_interfaces:
+        - xyz.openbmc_project.Inventory.Connector.Port
diff --git a/yaml/xyz/openbmc_project/Inventory/Item/README.md b/yaml/xyz/openbmc_project/Inventory/Item/README.md
index 086e285..d9709a0 100644
--- a/yaml/xyz/openbmc_project/Inventory/Item/README.md
+++ b/yaml/xyz/openbmc_project/Inventory/Item/README.md
@@ -24,3 +24,4 @@
 - led and item: `{identifying, identified_by}`
   `{fault_identifying, fault_identified_by}`
 - powerSupply and item: `{powering, powered_by}`
+- FabricAdapter and port: `{connecting, connected_to}`