use class decorators to mark tests that shouldn't be run by default
diff --git a/tests/bsn_ipmask.py b/tests/bsn_ipmask.py
index 70ca990..ccd97fb 100644
--- a/tests/bsn_ipmask.py
+++ b/tests/bsn_ipmask.py
@@ -36,13 +36,12 @@
     else:
         return (1 << (63 - index)) - 1
 
+@nonstandard
 class BSNConfigIPMask(base_tests.SimpleDataPlane):
     """
     Exercise BSN vendor extension for configuring IP source/dest match mask
     """
 
-    priority = -1
-
     def bsn_set_ip_mask(self, index, mask):
         """
         Use the BSN_SET_IP_MASK vendor command to change the IP mask for the