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Cisco Bug: CSCsz88543 - CPU on 520U/S cards goes to 100% with 12.2(33)SCB2 and M-CMTS config

Last Modified

Jan 29, 2017

Products (1)

  • Cisco uBR10000 Series Universal Broadband Routers

Known Affected Releases


Description (partial)


  CPU increases to 100% on 5x20U and 5x20S cards after upgrading to 12.2.(33)SCB2 code.
   Problem is seen on the ubr10k with 12.2.(33)SCB2 with 5x20U/S cards
   Show process cpu in the line card or  show controllers cable x/y/z proc-cpu
   from the CLI will show you the CPU usage. 

   Above problem has "only" been seen with MC5x20U and S cards are configured for M-CMTS using   modular cable interface and running IOS 12.3(33)SCB2.
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