> By ifnum, you mean by the order that "ip link" gives ? I've not checked if it remains in order as interfaces are hot plugged/unplugged. But i guess you are running tests direct after boot, and unplugs/replugs are unlikely? Andrew -- To unsubscribe from this list: send the line "unsubscribe linux-kselftest" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html