--- openflow-2009-12-08-3.h	2015-07-23 09:54:15.816479308 -0700
+++ openflow-2009-12-15.h	2015-07-23 09:54:15.820479308 -0700
@@ -609,7 +609,7 @@
     OFPET_BAD_REQUEST,          /* Request was not understood. */
     OFPET_BAD_ACTION,           /* Error in action description. */
     OFPET_FLOW_MOD_FAILED,      /* Problem modifying flow entry. */
-    OFPET_PORT_MOD_FAILED,      /* OFPT_PORT_MOD failed. */
+    OFPET_PORT_MOD_FAILED,      /* Port mod request failed. */
     OFPET_QUEUE_OP_FAILED       /* Queue operation failed. */
 };