This attribute indicates the results of the broadcast test, indexed by
the slot numbers of the cards containing the fabric port tested. Each
entry contains one of the following values.
+: a broadcast message was successfully sent from the transmitting
fabric port to the receiving fabric port
X: a broadcast message was not successfully sent from the
transmitting fabric port to the receiving fabric port
.: the associated pair of fabric ports was not tested
The fabric card test terminates automatically if a failure is detected.