diff --git a/apps/routing-api/src/main/java/org/onosproject/routing/IntentSynchronizationService.java b/apps/routing-api/src/main/java/org/onosproject/routing/IntentSynchronizationService.java
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+++ b/apps/routing-api/src/main/java/org/onosproject/routing/IntentSynchronizationService.java
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+/*
+ * 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.routing;
+
+import org.onosproject.net.intent.Intent;
+
+/**
+ * Submits and withdraws intents to the IntentService from a single point in
+ * the cluster at any one time. The provided intents will be synchronized with
+ * the IntentService on leadership change.
+ */
+public interface IntentSynchronizationService {
+
+    /**
+     * Submits and intent to the synchronizer.
+     * <p>
+     * The intent will be submitted directly to the IntentService if this node
+     * is the leader, otherwise it will be stored in the synchronizer for
+     * synchronization if this node becomes the leader.
+     * </p>
+     *
+     * @param intent intent to submit
+     */
+    void submit(Intent intent);
+
+    /**
+     * Withdraws an intent from the synchronizer.
+     * <p>
+     * The intent will be withdrawn directly from the IntentService if this node
+     * is the leader. The intent will be removed from the synchronizer's
+     * in-memory storage.
+     * </p>
+     *
+     * @param intent intent to withdraw
+     */
+    void withdraw(Intent intent);
+}