Cisco 2621xm Input and CRC Errors

Discussion in 'Cisco' started by adamclark, Jul 6, 2005.

  1. adamclark

    adamclark Guest


    I have a Cisco 2621xm and PIX 525 connected together. The Cisco 2621xm
    is my perimeter router and connects via fast ethernet port to my PIX's
    outside interface. I am getting CRC and input erros (no collisions) on
    the Cisco 2621xm but not on my PIX. We have replaced the cable, checked
    for EMI, but we are still getting these erros. When I do a show
    interface on my 2621xm this is what it looks like:

    FastEthernet0/1 is up, line protocol is up
    Hardware is AmdFE, address is 000f.24d5.3f61 (bia 000f.24d5.3f61)
    Description: Public
    Internet address is
    MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec,
    reliability 255/255, txload 1/255, rxload 1/255
    Encapsulation ARPA, loopback not set
    Keepalive set (10 sec)
    Full-duplex, 100Mb/s, 100BaseTX/FX
    ARP type: ARPA, ARP Timeout 04:00:00
    Last input 00:00:00, output 00:00:00, output hang never
    Last clearing of "show interface" counters 4d13h
    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 235000 bits/sec, 53 packets/sec
    5 minute output rate 247000 bits/sec, 51 packets/sec
    5237200 packets input, 3023534728 bytes
    Received 2790 broadcasts, 0 runts, 0 giants, 0 throttles
    606 input errors, 606 CRC, 606 frame, 0 overrun, 0 ignored
    0 watchdog
    0 input packets with dribble condition detected
    5530409 packets output, 3434885318 bytes, 0 underruns
    0 output errors, 0 collisions, 0 interface resets
    0 babbles, 0 late collision, 0 deferred
    0 lost carrier, 0 no carrier
    0 output buffer failures, 0 output buffers swapped out


    This is what I get when I do a show interface on the PIX:

    interface ethernet0 "outside" is up, line protocol is up
    Hardware is i82559 ethernet, address is 0013.6031.c216
    IP address, subnet mask
    MTU 1500 bytes, BW 100000 Kbit full duplex
    450100968 packets input, 314634984 bytes, 0 no buffer
    Received 560771 broadcasts, 0 runts, 0 giants
    0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
    394633441 packets output, 4227635261 bytes, 95085 underruns
    0 output errors, 0 collisions, 0 interface resets
    0 babbles, 0 late collisions, 0 deferred
    0 lost carrier, 0 no carrier
    input queue (curr/max blocks): hardware (128/128) software
    output queue (curr/max blocks): hardware (0/89) software (0/1)


    Not sure what is wrong. I have read in some places that this is a
    warning that a hardware failure is possible in the near future. Has
    anyone else experienced this problem or does anyone have any

    adamclark, Jul 6, 2005
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  2., Jul 6, 2005
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  3. adamclark

    adamclark Guest

    We did a few things steve. First of all we ran a totally different
    cable a totally differnt path. Second of all, we put a fluke network
    meter on there and it didn't find anything. Have you had this problem
    before and EMI was the resulting problem?

    Your input is appreciated.


    adamclark, Jul 7, 2005
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