Re: Many Input Errors F0/0 without CRC

I was pretty sure duplex mismatches would generate CRCs..

Your getting ignored and throttled errors.. Your taking in more
traffic than you can handle. Every time you see a throttle counter,
the router has dropped all packets in buffer as they couldn't be
serviced fast enough.

What do your buffers look like? show buffers
Are you running any QOS? Or FIFO?

-Christian

On Mon, Jun 6, 2011 at 2:56 PM, Kaio Vilar <kaiovilar_at_gmail.com> wrote:
> I set the speed / duplex at one week but the problem continues.
>
> GigabitEthernet0/1 is up, line protocol is up
> Hardware is MV96340 Ethernet,
> Internet address is
> MTU 1500 bytes, BW 10000 Kbit/sec, DLY 100 usec,
> reliability 255/255, txload 7/255, rxload 66/255
> Encapsulation ARPA, loopback not set
> Keepalive set (10 sec)
> Full-duplex, 100Mb/s, media type is T
> output flow-control is XON, input flow-control is XON
> ARP type: ARPA, ARP Timeout 04:00:00
> Last input 00:02:29, output 00:00:00, output hang never
> Last clearing of "show interface" counters never
> Input queue: 0/75/29/0 (size/max/drops/flushes); Total output drops: 0
> Queueing strategy: fifo
> Output queue: 0/40 (size/max)
> 30 second input rate 2612000 bits/sec, 340 packets/sec
> 30 second output rate 303000 bits/sec, 261 packets/sec
> 40998728 packets input, 1239892515 bytes, 0 no buffer
> Received 0 broadcasts, 0 runts, 0 giants, 27 throttles
> 563 input errors, 0 CRC, 0 frame, 0 overrun, 563 ignored
> 0 watchdog, 0 multicast, 20950 pause input
> 0 input packets with dribble condition detected
> 32475632 packets output, 3246818112 bytes, 0 underruns
> 0 output errors, 0 collisions, 2 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
> RInternet_A#exit
>
> 2011/6/6 Jeferson Guardia <jefersonf_at_gmail.com>
>>
>> As I said, only cross connecting inside DC scenarios :-)
>>
>>
>>
>> On 06/06/2011, at 15:37, Haroon <itguy.pro_at_gmail.com> wrote:
>>
>> Jeferson,
>> Why wouldn't you peer with ISP using ethernet? We've doine that in our
>> data center and haven't had any issues.... please let me know if I've missed
>> something?
>> Regards,
>> Haroon
>> On Mon, Jun 6, 2011 at 2:25 PM, Jeferson Guardia <jefersonf_at_gmail.com>
>> wrote:
>>>
>>> Sh int XXX counters err
>>>
>>> Dont let it auto negotiate, make sure You manually set speed with the
>>> provider.
>>>
>>> Make sure that broadcast you are using is private , for you and the
>>> provider. In case you are sharing that segment with others, collisions might
>>> happen thus you'll likely end up retransmitting it but not because of a l1
>>> issue but the way the segment is saturated.. Btw, I wouldn't peer with an
>>> ISP using Ethernet, only on some DC scenarios.
>>>
>>> Best luck
>>>
>>>
>>>
>>> On 06/06/2011, at 15:17, Christian Hunter <stasis416_at_gmail.com> wrote:
>>>
>>> > Post a sh int fa0/0
>>> >
>>> > Different errors mean different things.
>>> >
>>> > On Mon, Jun 6, 2011 at 2:13 PM, Kaio Vilar <kaiovilar_at_gmail.com> wrote:
>>> >> Hi masters,
>>> >>
>>> >> I'm having a little problem, I have a link of 10Mbps in a 2800 router,
>>> >> the
>>> >> interface f0 / 0 is generating many "Input Errors" but no CRC. My ISP
>>> >> has
>>> >> checked the circuit and found no problem. I'm thinking maybe the
>>> >> interface
>>> >> buffer problem, what do you think? have any command that I can verify
>>> >> this?
>>> >>
>>> >> Regards,
>>> >> Kaio Vilar
>>> >>
>>> >>
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>>> >>
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Received on Mon Jun 06 2011 - 15:16:48 ART