Supervisor 6L-E frequently switchover

Unanswered Question
Aug 10th, 2012
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Hi all, I have a frequently problem on Catalyst 4507E with SSO, modules 1 e 2 always fail after not manually switchover, I need to use "hw-module module reset" to change the state of modules.

Do you have any idea of the cause of this problem? I notice "comm link down=1", what is mean?

VMCH-A-Cat4507#sh redundancy counters
Redundancy Facility OMs
               comm link up = 2
             comm link down = 1

          invalid client tx = 0
          null tx by client = 0
                tx failures = 0
      tx msg length invalid = 0

      client not rxing msgs = 0
rx peer msg routing errors = 0
           null peer msg rx = 0
        errored peer msg rx = 0

                 buffers tx = 69850
     tx buffers unavailable = 0
                 buffers rx = 73927
      buffer release errors = 0

duplicate client registers = 0
  failed to register client = 0
       Invalid client syncs = 0


VMCH-A-Cat4507#sh redundancy switchover history

Index  Previous  Current  Switchover             Switchover

       active    active   reason                 time

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

   1       3        4     active unit failed     14:47:59 Italy Wed Aug 8 2012


Could you help me?

Regards

Marco

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