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No traffic on TenGig Interface but Input errors and CRC Increasing

Dear All,


Please see below the output from my ASR 9K TenGig Interface. Strange thing is that this interface is taken out of production Bundle and there is no traffic on it BUT the input errors and CRC is increasing continously:


Note: This interface is an uplink to service provider and at their end they are not seeing any such errors.



Tue Sep  5 12:27:31.430 PST
TenGigE0/0/0/1 is up, line protocol is up
  Interface state transitions: 1
  Hardware is TenGigE, address is d46d.507d.1865 (bia d46d.507d.1865)
  Layer 1 Transport Mode is LAN
  Description: *** TEN-GE to <PTCL_DEVICE> <REMOTE_PORT> ***
  Internet address is
  MTU 1514 bytes, BW 10000000 Kbit (Max: 10000000 Kbit)
     reliability 1/255, txload 0/255, rxload 0/255
  Encapsulation ARPA,
  Full-duplex, 10000Mb/s, link type is force-up
  output flow control is off, input flow control is off
  Carrier delay (up) is 10 msec
  loopback not set,
  Last link flapped 1y01w
  ARP type ARPA, ARP timeout 04:00:00
  Last input 00:00:00, output 00:15:00
  Last clearing of "show interface" counters 00:10:24
  30 second input rate 0 bits/sec, 0 packets/sec
  30 second output rate 0 bits/sec, 0 packets/sec
     84 packets input, 6390 bytes, 0 total input drops
     0 drops for unrecognized upper-level protocol
     Received 0 broadcast packets, 84 multicast packets
              0 runts, 0 giants, 0 throttles, 0 parity
     28236 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
     0 packets output, 0 bytes, 0 total output drops
     Output 0 broadcast packets, 0 multicast packets
     0 output errors, 0 underruns, 0 applique, 0 resets
     0 output buffer failures, 0 output buffers swapped out
     0 carrier transitions

Hall of Fame Community Legend

Re: No traffic on TenGig Interface but Input errors and CRC Increasing

@Muhammad Hamid Ashraf wrote:

     reliability 1/255, txload 0/255, rxload 0/255

You need to get this link checked out.  The SFP+ look so terrible I'm beggining to think it's a module that's failing.

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