--- /dev/null
+package org.opendaylight.controller.protocol_plugin.openflow;
+
+import org.openflow.protocol.statistics.OFDescriptionStatistics;
+
+/**
+ * Interface which defines the api which gets called when the information
+ * contained in the OF description statistics reply message from a network
+ * is updated with new one.
+ */
+public interface IStatisticsListener {
+ public void descriptionRefreshed(Long switchId,
+ OFDescriptionStatistics description);
+}