diff --git a/drivers/src/main/java/org/onosproject/driver/extensions/NiciraMatchNshSi.java b/drivers/src/main/java/org/onosproject/driver/extensions/NiciraMatchNshSi.java
new file mode 100644
index 0000000..c98a584
--- /dev/null
+++ b/drivers/src/main/java/org/onosproject/driver/extensions/NiciraMatchNshSi.java
@@ -0,0 +1,91 @@
+/*
+ * Copyright 2015 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.driver.extensions;
+
+import static com.google.common.base.MoreObjects.toStringHelper;
+
+import java.util.Objects;
+
+import org.onlab.util.KryoNamespace;
+import org.onosproject.net.NshServiceIndex;
+import org.onosproject.net.flow.AbstractExtension;
+import org.onosproject.net.flow.criteria.ExtensionSelector;
+import org.onosproject.net.flow.criteria.ExtensionSelectorType;
+/**
+ * Implementation of NSH Service Index(SI).
+ */
+public final class NiciraMatchNshSi extends AbstractExtension implements ExtensionSelector {
+
+    private NshServiceIndex nshSi;
+
+    private final KryoNamespace appKryo = new KryoNamespace.Builder().build();
+
+    /**
+     * Default constructor.
+     *
+     */
+    public NiciraMatchNshSi() {
+        this.nshSi = null;
+    }
+
+    /**
+     * Gets the nsh service index to match.
+     *
+     * @return the si to match
+     */
+    public NshServiceIndex nshSi() {
+        return nshSi;
+    }
+
+    @Override
+    public byte[] serialize() {
+        return appKryo.serialize(nshSi.serviceIndex());
+    }
+
+    @Override
+    public void deserialize(byte[] data) {
+        nshSi = NshServiceIndex.of(appKryo.deserialize(data));
+    }
+
+    @Override
+    public ExtensionSelectorType type() {
+        return ExtensionSelectorType.ExtensionSelectorTypes.NICIRA_MATCH_NSH_SI.type();
+    }
+
+    @Override
+    public String toString() {
+        return toStringHelper(type().toString())
+                .add("nshSi", nshSi.toString())
+                .toString();
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(type(), nshSi);
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (this == obj) {
+            return true;
+        }
+        if (obj instanceof NiciraMatchNshSi) {
+            NiciraMatchNshSi that = (NiciraMatchNshSi) obj;
+            return Objects.equals(nshSi, that.nshSi);
+        }
+        return false;
+    }
+}