diff --git a/advanced/connectivity/dual-homing.rst b/advanced/connectivity/dual-homing.rst
index 74e6496..2ca5c75 100644
--- a/advanced/connectivity/dual-homing.rst
+++ b/advanced/connectivity/dual-homing.rst
@@ -1,3 +1,6 @@
+.. SPDX-FileCopyrightText: 2021 Open Networking Foundation <info@opennetworking.org>
+.. SPDX-License-Identifier: Apache-2.0
+
 Dual Homing
 ===========