User`s guide

MOP Counters
Table F–1 (Cont.) MOP Counter Block
V3 V4
Name Off Len Off Len Description
RxFAIL_FRAMING_ERR - - 90 8 Receive failure—Framing
error. The frame did not
contain an integral number of 8
bit bytes. This indicates several
possible failures, such as EMI,
late collisions, or improperly set
hardware parameters.
RxFAIL_LONG_FRAME - - 98 8 Receive failure—Frame too
long
3
. The frame was discarded
because it was outside the Ethernet
maximum length and could not
be received. This indicates that a
remote system is sending invalid
length frames.
UNKNOWN_DESTINATION 2E 2 A0 8 Unrecognized frame destina-
tion. The number of times a
frame was discarded because there
was no portal with the protocol
type or multicast address enabled.
This includes frames received for
the physical address, the broadcast
address, or a multicast address.
DATA_OVERRUN 30 2 A8 8 Data overrun. The total number
of times the hardware lost an
incoming frame because it was
unable to keep up with the
data rate. In conjunction with
total frames received, provides
a measure of hardware resource
failures. The problem reflected in
this counter is also captured as an
event.
3
Always zero.
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F–8 MOP Counters