Cisco Intput Errors and CRC's increment

Hello Experts,

Our WAN interface is experiencing a large amount input errors and output errors, see below. Of particular notice is the fact the input errors are identical to the CRCs.

My initial thoughts are the problem is with the service provider. However, because the input errors are identical I'm not sure it the problem is with the provider?

Any help will be appreciated..

Cheers

Carlton
cpatte7372Asked:
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cpatte7372Author Commented:
Oops!

Forgot the output:

Serial0/0/0:0 is up, line protocol is up
  Hardware is GT96K Serial
  Description: BT MPLS 1BRACGNL.0394
  MTU 1500 bytes, BW 1986 Kbit/sec, DLY 20000 usec,
     reliability 251/255, txload 30/255, rxload 7/255
  Encapsulation FRAME-RELAY IETF, loopback not set
  Keepalive set (10 sec)
  LMI enq sent  1139, LMI stat recvd 1138, LMI upd recvd 0, DTE LMI up
  LMI enq recvd 0, LMI stat sent  0, LMI upd sent  0
  LMI DLCI 0  LMI type is ANSI Annex D  frame relay DTE
  FR SVC disabled, LAPF state down
  Broadcast queue 0/64, broadcasts sent/dropped 0/0, interface broadcasts 0
  Last input 00:00:00, output 00:00:00, output hang never
  Last clearing of "show interface" counters 03:09:43
  Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 209
  Queueing strategy: Class-based queueing
  Output queue: 0/1000/64/209 (size/max total/threshold/drops)
     Conversations  0/96/256 (active/max active/max total)
     Reserved Conversations 1/1 (allocated/max allocated)
     Available Bandwidth 717 kilobits/sec
  5 minute input rate 60000 bits/sec, 44 packets/sec
  5 minute output rate 235000 bits/sec, 52 packets/sec
     468880 packets input, 125910744 bytes, 0 no buffer
     Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
    318 input errors, 318 CRC, 116 frame, 33 overrun, 0 ignored, 203 abort
     592137 packets output, 471008276 bytes, 0 underruns
     0 output errors, 0 collisions, 0 interface resets
     0 unknown protocol drops
     0 output buffer failures, 0 output buffers swapped out
     0 carrier transitions
  Timeslot(s) Used:1-31, SCC: 0, Transmitter delay is 0 flags
0
MattCommented:
Try

conf t
interface Serial0/0/0:0
clear counters

And then watch how fast CRC errors is growing.
0
cpatte7372Author Commented:
Hi Matt,

I did what you suggested and the CRC's started incrementing straight away :-(
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JustInCaseCommented:
CRC errors
Indicates that the cyclic redundancy checksum generated by the originating LAN station or far-end device does not match the checksum calculated from the data received. On a LAN, this usually indicates noise or transmission problems on the LAN interface or the LAN bus itself. A high number of CRCs is usually the result of collisions or a station transmitting bad data.
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MattCommented:
Can you post config of this port? Speed, duplex?
0
JustInCaseCommented:
Bad cables, electromagnetic interference, duplex and/or speed mismatch. Choose your favorite.
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Craig BeckCommented:
reliability 251/255

My money is on a cabling issue.
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cpatte7372Author Commented:
Cheers
0
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