diff --git a/core/store/serializers/src/main/java/org/onosproject/store/serializers/ExtensionCriterionSerializer.java b/core/store/serializers/src/main/java/org/onosproject/store/serializers/ExtensionCriterionSerializer.java
new file mode 100644
index 0000000..92b7cb4
--- /dev/null
+++ b/core/store/serializers/src/main/java/org/onosproject/store/serializers/ExtensionCriterionSerializer.java
@@ -0,0 +1,71 @@
+/*
+ * Copyright 2015-2016 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.store.serializers;
+
+import com.esotericsoftware.kryo.Kryo;
+import com.esotericsoftware.kryo.Serializer;
+import com.esotericsoftware.kryo.io.Input;
+import com.esotericsoftware.kryo.io.Output;
+import org.onlab.osgi.DefaultServiceDirectory;
+import org.onosproject.net.DeviceId;
+import org.onosproject.net.behaviour.ExtensionSelectorResolver;
+import org.onosproject.net.driver.DefaultDriverData;
+import org.onosproject.net.driver.DefaultDriverHandler;
+import org.onosproject.net.driver.DriverHandler;
+import org.onosproject.net.driver.DriverService;
+import org.onosproject.net.flow.criteria.Criteria;
+import org.onosproject.net.flow.criteria.ExtensionCriterion;
+import org.onosproject.net.flow.criteria.ExtensionSelector;
+import org.onosproject.net.flow.criteria.ExtensionSelectorType;
+
+/**
+ * Serializer for extension criteria.
+ */
+public class ExtensionCriterionSerializer extends Serializer<ExtensionCriterion> {
+
+    /**
+     * Constructs a extension criterion serializer.
+     */
+    public ExtensionCriterionSerializer() {
+        super(false, true);
+    }
+
+    @Override
+    public void write(Kryo kryo, Output output, ExtensionCriterion object) {
+        kryo.writeClassAndObject(output, object.extensionSelector().type());
+        kryo.writeClassAndObject(output, object.deviceId());
+        kryo.writeClassAndObject(output, object.extensionSelector().serialize());
+    }
+
+    @Override
+    public ExtensionCriterion read(Kryo kryo, Input input,
+            Class<ExtensionCriterion> type) {
+        ExtensionSelectorType exType = (ExtensionSelectorType) kryo.readClassAndObject(input);
+        DeviceId deviceId = (DeviceId) kryo.readClassAndObject(input);
+
+        DriverService driverService = DefaultServiceDirectory.getService(DriverService.class);
+        DriverHandler handler = new DefaultDriverHandler(
+                new DefaultDriverData(driverService.getDriver(deviceId), deviceId));
+
+        ExtensionSelectorResolver resolver = handler.behaviour(ExtensionSelectorResolver.class);
+        ExtensionSelector selector = resolver.getExtensionSelector(exType);
+
+        byte[] bytes = (byte[]) kryo.readClassAndObject(input);
+        selector.deserialize(bytes);
+        return Criteria.extension(selector, deviceId);
+    }
+}