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NetApp Knowledge Base

ATTO 7500N/7600N will not boot with Critical Software Error Detected by duplicate IP Address

Last Updated:

Applies to

  • ATTO FibreBridge 7500N
  • ATTO FibreBridge 7600N
  • Unsecured FibreBridge(s)


After rebooting after a firmware upgrade, the bridge went into a reboot loop.  The bridge also reported a Duplicate IP address.

Detected duplicate IP Address: on Management Port: MP2.


 011191 22:10:42 CRIT-Address for MP1 already in use
 011192 22:10:42 CRIT-Software Interrupt Exception Detected (SWI) (007A)
 011193 22:10:42 CRIT-Instr Address    = 00396b3c
 011194 22:10:42 CRIT-SWI Number       = 0x000000
 011195 22:10:42 INFO-Software Interrupt
 0111A4 00:00:05 INFO Reset.  HW Code: Software Warm
 0111A5 00:00:05 INFO Reset.  Reason: Critical Software Error Detected
 0111A6 22:12:15 SYS  System date has changed. Current date:[08/19/2020]
 0111A7 22:12:15 INFO Boot/reset occurred (007A)
 0111A8 22:12:15 INFO Checkpoint 33 B:0 S0:0:0 S1:0:0 D0:0 C:0 O:0 I:0


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