Nortel Versalar 15000 Reference Manual page 68

show ethernet errors
Internal MAC Errors
Deadlock Errors
Excessive Collisions
Late Collisions
System Errors
Slot/Conn
Memory Errors
Collision Errors
Internal Errors
Loss of Carrier
48
Number of excessive deferrals. An excessive deferral
indicates that during the previous transmission the
deferral time was greater than 2.46 ms and the
transmission was aborted.
Number of times the hardware entered a transmitter
lockup condition and the software attempted to work
around the condition.
Number of times the transmitter failed in 16 attempts to
successfully transmit a message due to repeated
collisions on the interface.
Number of collisions that occurred after the timeslot of the
channel elapsed.
Slot location of the Ethernet module within the chassis
and the connector number.
Number of internal memory errors. If this error persists,
replace the Ethernet interface hardware.
Number of times the driver detects that the external
transceiver has not performed the SQE test after frame
transmissions. When the SQE test is enabled on the
transceiver, the transceiver asserts collision to the
Ethernet interface after every transmission to provide an
ongoing confidence test of the collision detection circuitry.
An increase in this statistic may mean only that you need
to enable the SQE test on the transceiver.
Number of internal buffer errors. If this error persists,
replace the Ethernet interface hardware.
Number of loss of carrier errors, in which the transceiver
fails to sense the carrier signal on the interface.
308689-B Rev 00