3Com SuperStack II 9300 Command Reference Manual page 287

Field
txFrames
txMcastFilters
(3500 and 9000 L3)
txMtuExcDiscs
(3500 and 9000 L3)
Description
Number of frames that this port transmitted to its
segment. This object counts a frame transmitted on the
interface that corresponds to this port only if the frame is
for a protocol that the local bridging function is
processing (includes bridge management frames).
Number of frames that this port discarded because of a
user-defined packet filter on its "transmit multicast" path.
Number of frames that this port discarded because of
excessive size.
bridge port detail 287