v5 initial commit
diff --git a/apps/xran/src/main/java/org.onosproject.xran/XranDeviceAgent.java b/apps/xran/src/main/java/org.onosproject.xran/XranDeviceAgent.java
new file mode 100644
index 0000000..812d6fc
--- /dev/null
+++ b/apps/xran/src/main/java/org.onosproject.xran/XranDeviceAgent.java
@@ -0,0 +1,42 @@
+/*
+ * Copyright 2017-present Open Networking Foundation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.onosproject.xran;
+
+import io.netty.channel.ChannelHandlerContext;
+
+/**
+ * Xran device agent interface.
+ */
+public interface XranDeviceAgent {
+
+ /**
+ * Add connected CELL.
+ *
+ * @param host IP of host trying to connect
+ * @param ctx channel of CELL speaking to
+ * @return true if succeeded
+ */
+ boolean addConnectedCell(String host, ChannelHandlerContext ctx);
+
+ /**
+ * Remove disconnected CELL.
+ *
+ * @param host IP of host disconnected
+ * @return true if remove succeeded
+ */
+ boolean removeConnectedCell(String host);
+}