diff --git a/core/net/src/main/java/org/onlab/onos/cluster/impl/ClusterManager.java b/core/net/src/main/java/org/onlab/onos/cluster/impl/ClusterManager.java
index 9913ad0..36f2f7e 100644
--- a/core/net/src/main/java/org/onlab/onos/cluster/impl/ClusterManager.java
+++ b/core/net/src/main/java/org/onlab/onos/cluster/impl/ClusterManager.java
@@ -16,10 +16,12 @@
 import org.onlab.onos.cluster.NodeId;
 import org.onlab.onos.event.AbstractListenerRegistry;
 import org.onlab.onos.event.EventDeliveryService;
+import org.onlab.packet.IpPrefix;
 import org.slf4j.Logger;
 
 import java.util.Set;
 
+import static com.google.common.base.Preconditions.checkArgument;
 import static com.google.common.base.Preconditions.checkNotNull;
 import static org.slf4j.LoggerFactory.getLogger;
 
@@ -81,6 +83,14 @@
     }
 
     @Override
+    public ControllerNode addNode(NodeId nodeId, IpPrefix ip, int tcpPort) {
+        checkNotNull(nodeId, INSTANCE_ID_NULL);
+        checkNotNull(ip, "IP address cannot be null");
+        checkArgument(tcpPort > 5000, "TCP port must be > 5000");
+        return store.addNode(nodeId, ip, tcpPort);
+    }
+
+    @Override
     public void removeNode(NodeId nodeId) {
         checkNotNull(nodeId, INSTANCE_ID_NULL);
         store.removeNode(nodeId);
diff --git a/core/net/src/main/java/org/onlab/onos/net/proxyarp/impl/package-info.java b/core/net/src/main/java/org/onlab/onos/net/proxyarp/impl/package-info.java
index 53830bc..c0cbd20 100644
--- a/core/net/src/main/java/org/onlab/onos/net/proxyarp/impl/package-info.java
+++ b/core/net/src/main/java/org/onlab/onos/net/proxyarp/impl/package-info.java
@@ -1,4 +1,4 @@
 /**
  * Core subsystem for responding to arp requests.
  */
-package org.onlab.onos.net.proxyarp.impl;
\ No newline at end of file
+package org.onlab.onos.net.proxyarp.impl;