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What does OLS, LRR, NOS mean

I am trying to find any documenation that might tell me what the values of OLS, LRR, NOS indicate when you do a show int command.

I have a switch that has high values on the output reading of those values on all ports on the switch.  I am trying to find out if i have a cable/SFP problem or soething else.

show int fc1/1 counters
fc1/1
    5 minutes input rate 1753296 bits/sec, 219162 bytes/sec, 199 frames/sec
    5 minutes output rate 2310384 bits/sec, 288798 bytes/sec, 194 frames/sec
    2741512190 frames input, 2542476084276 bytes
      0 class-2 frames, 0 bytes
      2741512190 class-3 frames, 2542476084276 bytes
      0 class-f frames, 0 bytes
      0 discards, 0 errors, 0 CRC
      0 unknown class, 0 too long, 0 too short
    3410405365 frames output, 5164364339412 bytes
      0 class-2 frames, 0 bytes
      3410405365 class-3 frames, 5164364339412 bytes
      0 class-f frames, 0 bytes
      0 discards, 0 errors
    1 input OLS, 1 LRR, 0 NOS, 307 loop inits
    289 output OLS, 289 LRR, 289 NOS, 289 loop inits

    0 link failures, 0 sync losses, 0 signal losses
     48276 BB credit transitions from zero
      16 receive B2B credit remaining
      3 transmit B2B credit remaining
      3 low priority transmit B2B credit remaining

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Re: What does OLS, LRR, NOS mean

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