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Error disabled - bit error rate too high on MDS switch

fredrickchisanga
Beginner
Beginner

I have been trying to perform an NDMP backup between A HP LTO5 Ultrium Tape Library and Netapp with the MDS switch providing the fabric.

However, everytime I initiate the job, I experience this problem.

 

Below are some of the outputs on the concerned FC Ports:

 

MDS-SW01# sh int fc1/27

fc1/27 is down (Error disabled - bit error rate too high)

    Hardware is Fibre Channel, SFP is short wave laser w/o OFC (SN)

    Port WWN is 20:1b:54:7f:ee:e2:8d:00

    Admin port mode is auto, trunk mode is on

    snmp link state traps are enabled

    Port vsan is 2

    Receive data field Size is 2112

    Beacon is turned off

    5 minutes input rate 0 bits/sec, 0 bytes/sec, 0 frames/sec

    5 minutes output rate 0 bits/sec, 0 bytes/sec, 0 frames/sec

      263045 frames input, 12907156 bytes

        0 discards, 0 errors

        0 CRC,  0 unknown class

        0 too long, 0 too short

      4308477 frames output, 8677425352 bytes

        1 discards, 0 errors

      2 input OLS, 2 LRR, 0 NOS, 3 loop inits

      5 output OLS, 2 LRR, 1 NOS, 3 loop inits

    Interface last changed at Mon Oct 13 07:36:46 2014

 

 

 

-----------------------------

 

MDS-SW01# sh int fc1/27 counters

fc1/27

    5 minutes input rate 0 bits/sec, 0 bytes/sec, 0 frames/sec

    5 minutes output rate 0 bits/sec, 0 bytes/sec, 0 frames/sec

    263045 frames input, 12907156 bytes

      0 class-2 frames, 0 bytes

      263045 class-3 frames, 12907156 bytes

      0 class-f frames, 0 bytes

      0 discards, 0 errors, 0 CRC

      0 unknown class, 0 too long, 0 too short

    4308477 frames output, 8677425352 bytes

      0 class-2 frames, 0 bytes

      4308477 class-3 frames, 8677425352 bytes

      0 class-f frames, 0 bytes

      1 discards, 0 errors

    2 input OLS, 2 LRR, 0 NOS, 3 loop inits

    5 output OLS, 2 LRR, 1 NOS, 3 loop inits

    1 link failures, 1 sync losses, 1 signal losses

     9 BB credit transitions from zero

      32 receive B2B credit remaining

      0 transmit B2B credit remaining

      0 low priority transmit B2B credit remaining

 

What could be causing the issue and what is the solution?!

Thanks.

15 Replies 15

Hi Quijarro_felipe,

Thank you for the response. I have changed everything that could be changed and the link appears to hold up.

Even hardcoded the the speeds on the ports on the MDS switch.

Thank you all.

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