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MultiPort/LT User Reference
Page 72
Chapter 3
3.3.3.6. l - LANCE Statistics
The LANCE is the Local Area Network Controller - Ethernet, and is responsible
for most of the Ethernet protocol handling. This command gives the statistics
for this chip. Refer to AMD's data books for more details. The statistics are:
XMT BLOCK
Transmit currently blocked - no free buffers
babl
LANCE has been babbling
miss
LANCE ran out of receive buffers
merr
Bus error while LANCE bus master
recvd
Total count of received packets
good
Good packet count
sync
Start of Packet bit not set
long
Packet too long - longer than 1600 bytes
frame
Packet framing error
oflo
LANCE FIFO overflowed - excess bus contention
crc
CRC error on packet
buff
Lance buffer overflowed before next status read
nbuff
Buffer allocation failure - none available
xmtd
Total count of transmitted packets
collisions
Total collision packet count
multi
Multiple (>1) collisions
hard
Hard collisions - too many retries
lcol
Late Collisions - possibly cable too long
uflo
LANCE buffer underflowed - excess bus contention
buf
LANCE buffer error
defers
Packet deferred - Ethernet was busy
A typical "l" report:
babl 0, miss 0, merr 0
recvd 851796: good 851796, sync 0, long 0, frame 0,
oflo 0, crc 0, buff 0, nbuff 0
xmtd 894829: collisions 105 (multi 50 hard 0)
lcol 0, uflo 13, buf 0, defers 5164
Note that as with the "s" statistics, collisions and defers are to be expected,
although an excess of either might indicate general networking problems.
Excess crc errors could also mean network problems.
3.3.3.7. M - NBP Statistics
A typical printout from the NBP statistics is shown below:
NBP: 13503 pkts rcvd;