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+--- Thread: System Blue Network Interface Question (/showthread.php?tid=1937)
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RE: System Blue Network Interface Question - chevyman142000 - 2016-09-16
I do have a managed switch (HP Procurve). I've tried setting it to 10mb full and the port just goes disabled.
From the switch log:
Excessive CRC/% alignment errors
Half Duplex Mismatch
Excessive late% collisions
RE: System Blue Network Interface Question - allsorts - 2016-09-16
(2016-09-16, 18:16)chevyman142000 Wrote: I do have a managed switch (HP Procurve). I've tried setting it to 10mb full and the port just goes disabled.
From the switch log:
Excessive CRC/% alignment errors
Half Duplex Mismatch
Excessive late% collisions
And if you set the switch to 10 Mb half duplex? The ENC28J60 is configured to be in half duplex mode as per a post further up this thread.
If you still get CRC errors I'd be getting the scope out to see what is going on with signal levels.
ENC28J60:
Pins 13 and 12 are Tx+ & Tx-, RJ45 Pins 1 & 2 Org/Wht & Org.
Pins 17 and 16 are Rx+ & Rx-, RJ45 Pins 3 & 6 Grn/Wht & Grn.
No scope, give a close examination to the joints of the components between the socket and chip, are the errors in both directions or only one?
RE: System Blue Network Interface Question - kevinmcc - 2016-09-17
(2016-09-16, 18:16)chevyman142000 Wrote: I do have a managed switch (HP Procurve). I've tried setting it to 10mb full and the port just goes disabled.
From the switch log:
Excessive CRC/% alignment errors
Half Duplex Mismatch
Excessive late% collisions
Strange Cisco handles it just fine.
Switch-A#show int g0/7
GigabitEthernet0/7 is up, line protocol is up (connected)
Hardware is Gigabit Ethernet, address is
Description: Blitzortung Blue
MTU 1500 bytes, BW 10000 Kbit/sec, DLY 1000 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full-duplex, 10Mb/s, media type is 10/100/1000BaseTX
input flow-control is off, output flow-control is unsupported
ARP type: ARPA, ARP Timeout 04:00:00
Last input never, output 00:00:03, output hang never
Last clearing of "show interface" counters 1w4d
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 8000 bits/sec, 1 packets/sec
5 minute output rate 4000 bits/sec, 2 packets/sec
11175568 packets input, 7327449999 bytes, 0 no buffer
Received 1264 broadcasts (0 multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog, 0 multicast, 0 pause input
0 input packets with dribble condition detected
10900051 packets output, 2029037907 bytes, 0 underruns
0 output errors, 0 collisions, 0 interface resets
0 unknown protocol drops
0 babbles, 0 late collision, 0 deferred
0 lost carrier, 0 no carrier, 0 pause output
0 output buffer failures, 0 output buffers swapped out
Can you disable the port, change to 10mb Full, then re-enable and see if it errors?
RE: System Blue Network Interface Question - chevyman142000 - 2016-09-19
Sorry for the delay. I will try this out and let you know.