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Community Member

Output errors on Ethernet interface

Good day,

I am seeing ouput errors on a half duplex interface facing a comtrend modem.

What could be causing this? I'm not seeing any other errors besides collisions which are normal for half duplex.

3 REPLIES
Hall of Fame Super Gold

Re: Output errors on Ethernet interface

Which output errors? Send the complete show interface.

Community Member

Re: Output errors on Ethernet interface

Ethernet1 is up, line protocol is up

Hardware is PQUICC_FEC, address is 0011.20da.dcb1 (bia 0011.20da.dcb1)

Internet address is

MTU 1500 bytes, BW 10000 Kbit, DLY 1000 usec,

reliability 255/255, txload 1/255, rxload 1/255

Encapsulation ARPA, loopback not set

Keepalive set (10 sec)

Auto-duplex, 10Mb/s

ARP type: ARPA, ARP Timeout 04:00:00

Last input 00:00:10, output 00:00:00, output hang never

Last clearing of "show interface" counters 19:14:45

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 2000 bits/sec, 3 packets/sec

5 minute output rate 2000 bits/sec, 3 packets/sec

204404 packets input, 176145912 bytes, 0 no buffer

Received 1374 broadcasts, 0 runts, 0 giants, 0 throttles

0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored

0 input packets with dribble condition detected

164757 packets output, 29247181 bytes, 0 underruns

1301 output errors, 1844 collisions, 0 interface resets

0 babbles, 0 late collision, 0 deferred

9 lost carrier, 0 no carrier

0 output buffer failures, 0 output buffers swapped out

Hall of Fame Super Gold

Re: Output errors on Ethernet interface

That should be "excessive collisions", check "show controllers ethernet 1".

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