case OFPET_PORT_MOD_FAILED:
OFPortModFailedCode pmfc =
OFPortModFailedCode.values()[0xffff & error.getErrorCode()];
return String.format("Error %s %s", et, pmfc);
case OFPET_QUEUE_OP_FAILED:
OFQueueOpFailedCode qofc =
OFQueueOpFailedCode.values()[0xffff & error.getErrorCode()];
return String.format("Error %s %s", et, qofc);
case OFPET_VENDOR_ERROR:
// no codes known for vendor error
return String.format("Error %s", et);