Bitmask indicating transceiver errors.
Transceiver information I/O error(0)
Transceiver information checksum error(1)
Transceiver type and port configuration mismatch(2)
Transceiver type not supported by port hardware(3)
WIS local fault(4)
Receive optical power fault(5)
PMA/PMD receiver local fault(6)
PCS receive local fault(7)
PHY XS receive local fault(8)
Laser bias current fault(9)
Laser temperature fault(10)
Laser output power fault(11)
TX fault(12)
PMA/PMD transmitter local fault(13)
PCS transmit local fault(14)
PHY XS Transmit Local Fault(15)
RX loss of signal(16)
Unused(17-31)