[ONOS-3606] update vtn's bug: if ovs has a plurality of bridge, the code
should filter br-int and get the ports via deviceService.

Change-Id: I3112f1fa5e72460fed77f03ad6cc21858d110276
diff --git a/apps/vtn/vtnmgr/src/main/java/org/onosproject/vtn/util/VtnConfig.java b/apps/vtn/vtnmgr/src/main/java/org/onosproject/vtn/util/VtnConfig.java
index 5ac0466..0b743a8 100644
--- a/apps/vtn/vtnmgr/src/main/java/org/onosproject/vtn/util/VtnConfig.java
+++ b/apps/vtn/vtnmgr/src/main/java/org/onosproject/vtn/util/VtnConfig.java
@@ -37,7 +37,7 @@
  */
 public final class VtnConfig {
 
-    private static final String DEFAULT_BRIDGE_NAME = "br-int";
+    public static final String DEFAULT_BRIDGE_NAME = "br-int";
     private static final String DEFAULT_TUNNEL = "vxlan-0.0.0.0";
     private static final Map<String, String> DEFAULT_TUNNEL_OPTIONS = new HashMap<String, String>() {
         {