Adding some flesh to the simple device manager.
diff --git a/net/api/src/main/java/org/onlab/onos/event/EventDispatchService.java b/net/api/src/main/java/org/onlab/onos/event/EventDispatchService.java
new file mode 100644
index 0000000..8df68bb
--- /dev/null
+++ b/net/api/src/main/java/org/onlab/onos/event/EventDispatchService.java
@@ -0,0 +1,8 @@
+package org.onlab.onos.event;
+
+/**
+ * Abstraction of an entity capable of accepting events to be posted and
+ * then dispatching them to the appropriate event sink.
+ */
+public interface EventDispatchService extends EventDispatcher, EventSinkBroker {
+}