diff --git a/core/api/src/main/java/org/onosproject/net/behaviour/InterfaceConfig.java b/core/api/src/main/java/org/onosproject/net/behaviour/InterfaceConfig.java
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+++ b/core/api/src/main/java/org/onosproject/net/behaviour/InterfaceConfig.java
@@ -0,0 +1,49 @@
+/*
+ * Copyright 2016 Open Networking Laboratory
+ *
+ * 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.net.behaviour;
+
+import org.onlab.packet.VlanId;
+import org.onosproject.net.DeviceId;
+import org.onosproject.net.driver.HandlerBehaviour;
+
+/**
+ * Means to configure interfaces on devices.
+ */
+public interface InterfaceConfig extends HandlerBehaviour {
+
+    /**
+     * Adds an interface to a VLAN.
+     * @param deviceId the device ID
+     * @param intf the name of the interface
+     * @param vlanId the VLAN ID
+     * @return the result of operation
+     */
+    boolean addInterfaceToVlan(DeviceId deviceId, String intf, VlanId vlanId);
+
+    /**
+     *  Configures an interface as trunk for VLAN.
+     * @param deviceId the device ID
+     * @param intf the name of the interface
+     * @param vlanId the VLAN ID
+     * @return the result of operation
+     */
+    boolean addTrunkInterface(DeviceId deviceId, String intf, VlanId vlanId);
+
+    /* TODO Addition of more methods to make the behavior symmetrical.
+    Methods removeVlanFromInterface, getInterfacesForVlan, getVlansForInterface
+    should be added to complete the behavior.
+     */
+}