Re: Many Input Errors F0/0 without CRC

From: Kaio Vilar <kaiovilar_at_gmail.com>
Date: Mon, 6 Jun 2011 16:17:33 -0300

I checked with the ISP and it is also configured with speed / duplex
manually. This problem is intermittent sometimes happens in the morning
other afternoon. So I believe it might be something related to the buffer,
the same amount of errors appears in PE. The connection between them is
fiber.

2011/6/6 Haroon <itguy.pro_at_gmail.com>

> what happens if you let ISP router set the speed and duplex? auto
> negotiate?
>
>
> 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>
>>> 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>
>>>> 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>
>>>> 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 - 16:17:33 ART

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