Change default of head node to head1 for cord

Change-Id: Ief9e2f1b472961cd988c51c19da7e7f6c6b082e1
diff --git a/src/test/utils/CordSubscriberUtils.py b/src/test/utils/CordSubscriberUtils.py
index 5a97eb8..5043b7a 100644
--- a/src/test/utils/CordSubscriberUtils.py
+++ b/src/test/utils/CordSubscriberUtils.py
@@ -23,7 +23,7 @@
 
 class XosUtils(object):
 
-    head_node = os.getenv('HEAD_NODE', 'prod')
+    head_node = os.getenv('HEAD_NODE', 'head1')
     HEAD_NODE = head_node + '.cord.lab' if len(head_node.split('.')) == 1 else head_node
     CONTROLLER_PORT = '9000'
     our_path = os.path.dirname(os.path.realpath(__file__))