The Transit Queue Monitor operational state.
disabled(1) - Transmit queue monitoring is not running
on this port.
normal(2) - Transmit queue monitoring is currently
monitoring this port and there are no
stalled buffers.
logging(3) - Transmit queue monitoring has detected
a stalled buffer and is currently logging
the condition.
ignorePause(4) - Transmit queue monitoring has disabled the
processing of received pause packets.
down(5) Transmit queue monitoring has taken this port
down.