diff --git a/apps/openstackinterface/api/src/main/java/org/onosproject/openstackinterface/OpenstackRouterInterface.java b/apps/openstackinterface/api/src/main/java/org/onosproject/openstackinterface/OpenstackRouterInterface.java
new file mode 100644
index 0000000..37e3478
--- /dev/null
+++ b/apps/openstackinterface/api/src/main/java/org/onosproject/openstackinterface/OpenstackRouterInterface.java
@@ -0,0 +1,162 @@
+/*
+ * 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.openstackinterface;
+
+import java.util.Objects;
+
+import static com.google.common.base.Preconditions.checkNotNull;
+
+/**
+ * An Openstack Neutron Router Interface Model.
+ */
+public final class OpenstackRouterInterface {
+    private final String id;
+    private final String tenantId;
+    private final String subnetId;
+    private final String portId;
+
+    private OpenstackRouterInterface(String id, String tenantId,
+                                     String subnetId, String portId) {
+        this.id = checkNotNull(id);
+        this.tenantId = checkNotNull(tenantId);
+        this.subnetId = checkNotNull(subnetId);
+        this.portId = checkNotNull(portId);
+    }
+
+    /**
+     * Returns Router Interface ID.
+     *
+     * @return router interface ID
+     */
+    public String id() {
+        return id;
+    }
+
+    /**
+     * Returns tenant ID.
+     *
+     * @return tenant ID
+     */
+    public String tenantId() {
+        return tenantId;
+    }
+
+    /**
+     * Returns subnet ID.
+     *
+     * @return subnet ID
+     */
+    public String subnetId() {
+        return subnetId;
+    }
+
+    /**
+     * Returns port ID.
+     *
+     * @return port ID
+     */
+    public String portId() {
+        return portId;
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) {
+            return true;
+        }
+
+        if (o instanceof OpenstackRouterInterface) {
+            OpenstackRouterInterface that = (OpenstackRouterInterface)  o;
+
+            return this.id.equals(that.id) &&
+                    this.portId.equals(that.portId) &&
+                    this.subnetId.equals(that.subnetId) &&
+                    this.tenantId.equals(that.tenantId);
+        }
+
+        return false;
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(id, portId, subnetId, tenantId);
+    }
+
+    /**
+     * An Openstack Router Interface Builder class.
+     */
+    public static final class Builder {
+        private String id;
+        private String tenantId;
+        private String subnetId;
+        private String portId;
+
+        /**
+         * Sets Router Interface ID.
+         *
+         * @param id router interface ID
+         * @return Builder object
+         */
+        public Builder id(String id) {
+            this.id = id;
+            return this;
+        }
+
+        /**
+         * Sets tenant ID.
+         *
+         * @param tenantId tenant ID
+         * @return Builder object
+         */
+        public Builder tenantId(String tenantId) {
+            this.tenantId = tenantId;
+            return this;
+        }
+
+        /**
+         * Sets subnet ID.
+         *
+         * @param subnetId subnet ID
+         * @return Builder object
+         */
+        public Builder subnetId(String subnetId) {
+            this.subnetId = subnetId;
+            return this;
+        }
+
+        /**
+         * Sets port ID.
+         *
+         * @param portId port ID
+         * @return Builder object
+         */
+        public Builder portId(String portId) {
+            this.portId = portId;
+            return this;
+        }
+
+        /**
+         * Builds an Openstack Router Interface object.
+         *
+         * @return OpenstackRouterInterface object
+         */
+        public OpenstackRouterInterface build() {
+            return new OpenstackRouterInterface(checkNotNull(id), checkNotNull(tenantId),
+                    checkNotNull(subnetId), checkNotNull(portId));
+        }
+
+    }
+}