diff --git a/net/api/src/main/java/org/onlab/onos/net/GreetService.java b/net/api/src/main/java/org/onlab/onos/net/GreetService.java
new file mode 100644
index 0000000..09f0d96
--- /dev/null
+++ b/net/api/src/main/java/org/onlab/onos/net/GreetService.java
@@ -0,0 +1,23 @@
+package org.onlab.onos.net;
+
+/**
+ * Example of a simple service that provides greetings and it
+ * remembers the names which were greeted.
+ */
+public interface GreetService {
+
+    /**
+     * Returns a greeting tailored to the specified name.
+     *
+     * @param name some name
+     * @return greeting
+     */
+    String yo(String name);
+
+    /**
+     * Returns an iterable of names encountered thus far.
+     *
+     * @return iterable of names
+     */
+    Iterable<String> names();
+}