diff --git a/drivers/lumentum/src/main/java/org/onosproject/drivers/lumentum/CrossConnectCache.java b/drivers/lumentum/src/main/java/org/onosproject/drivers/lumentum/CrossConnectCache.java
new file mode 100644
index 0000000..6d013fb
--- /dev/null
+++ b/drivers/lumentum/src/main/java/org/onosproject/drivers/lumentum/CrossConnectCache.java
@@ -0,0 +1,48 @@
+/*
+ * 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.drivers.lumentum;
+
+import org.apache.commons.lang3.tuple.Pair;
+import org.onosproject.net.flow.FlowId;
+
+/**
+ * Simple interface to cache flow ID and priority of cross connect flows.
+ */
+interface CrossConnectCache {
+    /**
+     * Returns the flow ID and priority corresponding to the flow hash.
+     *
+     * @param hash flow hash
+     * @return flow ID and priority, null if not in cache
+     */
+    Pair<FlowId, Integer> get(int hash);
+
+    /**
+     * Stores the flow ID and priority corresponding to the flow hash.
+     *
+     * @param hash flow hash
+     * @param flowId flow ID
+     * @param priority flow priority
+     */
+    void set(int hash, FlowId flowId, int priority);
+
+    /**
+     * Removes the given hash from the cache.
+     *
+     * @param hash flow hash
+     */
+    void remove(int hash);
+}