added design section and deployment for cloud native smf amf
Change-Id: I8daa75db0ceb8de3e26f203837c38c6abd1ba9b9
diff --git a/design/design-amf.rst b/design/design-amf.rst
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+..
+ SPDX-FileCopyrightText: © 2020 Open Networking Foundation <support@opennetworking.org>
+ SPDX-License-Identifier: Apache-2.0
+
+.. _design_amf:
+
+AMF Design Overview
+===================
+
+.. image:: ../_static/images/CN-AMF.png
+ :width: 500px
+
+SctpLb (SctpLoadbalancer)
+-------------------------
+
+ * Accept and manage gnb or sctp connections
+
+ * GRPC communication between SctpLb and Amf Service
+
+ * Handles Amf Instance Down/Up Notifications
+
+ * Backend NF manages AMF instances
+
+ * Round-Robin Distribution of Sctp Messages over grpc channel to Backend NF
+
+ * Redirect Support for forwarding to a particular Amf Instance