diff --git a/apps/iptopology-api/src/main/java/org/onosproject/iptopology/api/device/DefaultInterfaceDescription.java b/apps/iptopology-api/src/main/java/org/onosproject/iptopology/api/device/DefaultInterfaceDescription.java
new file mode 100644
index 0000000..c7e413d
--- /dev/null
+++ b/apps/iptopology-api/src/main/java/org/onosproject/iptopology/api/device/DefaultInterfaceDescription.java
@@ -0,0 +1,97 @@
+/*
+ * Copyright 2014 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.iptopology.api.device;
+
+import com.google.common.base.MoreObjects;
+import org.onlab.packet.Ip6Address;
+import org.onlab.packet.Ip4Address;
+import org.onosproject.iptopology.api.InterfaceIdentifier;
+import org.onosproject.net.AbstractDescription;
+import org.onosproject.net.SparseAnnotations;
+
+/**
+ * Default implementation of immutable Interface description.
+ */
+public class DefaultInterfaceDescription extends AbstractDescription
+        implements InterfaceDescription {
+
+    private final InterfaceIdentifier intfId;
+    private final Ip4Address ipv4Address;
+    private final Ip6Address ipv6Address;
+
+
+
+    /**
+     * Creates an interface description using the supplied information.
+     *
+     * @param intfId        interface identifier
+     * @param ipv4Address   ipv4 address of an interface
+     * @param ipv6Address   ipv6 address of an interface
+     * @param annotations   optional key/value annotations map
+     */
+    public DefaultInterfaceDescription(InterfaceIdentifier intfId, Ip4Address ipv4Address,
+                                  Ip6Address ipv6Address, SparseAnnotations...annotations) {
+        super(annotations);
+        this.intfId = intfId;
+        this.ipv4Address = ipv4Address;
+        this.ipv6Address = ipv6Address;
+    }
+
+    /**
+     * Default constructor for serialization.
+     */
+    private DefaultInterfaceDescription() {
+        this.intfId = null;
+        this.ipv4Address = null;
+        this.ipv6Address = null;
+    }
+
+    /**
+     * Creates an interface description using the supplied information.
+     *
+     * @param base        InterfaceDescription to get basic information from
+     * @param annotations optional key/value annotations map
+     */
+    public DefaultInterfaceDescription(InterfaceDescription base,
+                                  SparseAnnotations annotations) {
+        this(base.intfId(), base.ipv4Address(), base.ipv6Address(), annotations);
+    }
+
+    @Override
+    public InterfaceIdentifier intfId() {
+        return intfId;
+    }
+
+    @Override
+    public Ip4Address ipv4Address() {
+        return ipv4Address;
+    }
+
+    @Override
+    public Ip6Address ipv6Address() {
+        return ipv6Address; }
+
+    @Override
+    public String toString() {
+        return MoreObjects.toStringHelper(getClass())
+                .add("intfId", intfId)
+                .add("ipv4Address", ipv4Address)
+                .add("ipv6Address", ipv6Address)
+                .add("annotations", annotations())
+                .toString();
+    }
+
+}