Skip to main content
NetApp Knowledge Base

ATTO 7500N/7600N Reboots with Critical Software Error Detected by duplicate IP Address

Last Updated:

Applies to

  • ONTAP 9
  • ATTO Fibrebridge 7500N
  • ATTO Fibrebridge 7600N


  • ATTO Bridge(s) suddenly reboots
  • Panic can occur on the connected nodes if all the Bridges reboot at once:

PANIC : aggr aggr0_dfcp02: raid volfsm, fatal multi-disk error

  • ATTO FibreBridge logs:

CRIT Address fe80::123:12ff:fea1:1ec0%1 for MP1 already in use
INFO Reset. Reason: Watchdog Timer Interrupt Exception
INFO Reset. Reason: Watchdog Timer Interrupt Exception
INFO Reset. Reason: Critical Software Error Detected

Sign in to view the entire content of this KB article.

New to NetApp?

Learn more about our award-winning Support

NetApp provides no representations or warranties regarding the accuracy or reliability or serviceability of any information or recommendations provided in this publication or with respect to any results that may be obtained by the use of the information or observance of any recommendations provided herein. The information in this document is distributed AS IS and the use of this information or the implementation of any recommendations or techniques herein is a customer's responsibility and depends on the customer's ability to evaluate and integrate them into the customer's operational environment. This document and the information contained herein may be used solely in connection with the NetApp products discussed in this document.