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4 - 96 ONline Ethernet Bridge Module Installation and Operation Guide
SQE (Heartbeat) Failures
(You can disable this
attribute using the SET
DEVICE SQE_MODE
command)
Number of times the frame was
transmitted without successful SQE
(heartbeat). This is not a fatal error. It
may occur when SQE is turned off at the
transceiver.
Transmitter Underflowed Number of times a frame transmit
aborted because the Ethernet Controller
could not access memory.
Late Collisions Number of collisions after the slot-time of
the channel has expired.
Transmitter Lost Carrier Number of times a frame was sent and
there was an open tap into the Ethernet
(AUI port disconnected).
Table 4-4. SHOW COUNTER PORTS Command Attributes
Attribute Description