Finished implementation of edge port manager using topology event async notifications.

Change-Id: Ide0eb947ba6400dafe11dac73af1466aaf0ce451
diff --git a/core/api/src/main/java/org/onosproject/net/edge/EdgePortService.java b/core/api/src/main/java/org/onosproject/net/edge/EdgePortService.java
index 25f18a9..c91018e 100644
--- a/core/api/src/main/java/org/onosproject/net/edge/EdgePortService.java
+++ b/core/api/src/main/java/org/onosproject/net/edge/EdgePortService.java
@@ -23,7 +23,9 @@
 import java.util.Optional;
 
 /**
- * Service for interacting with an inventory of network edge ports.
+ * Service for interacting with an inventory of network edge ports. A port
+ * is considered an edge port if it is an active port and does not have an
+ * infrastructure link associated with it.
  */
 public interface EdgePortService {