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High number of connections lead to ONTAP firewall error ipfw.ReachedMaxStates causing CIFS and NFS outage

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Category:
ontap-9
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nas
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Applies to

  • ONTAP 9
  • CIFS
  • NFS

Issue

  • Event ipfw.ReachedMaxStates accompanied by NFS or CIFS outage
  • CIFS/NFS inaccessible intermitently
  • External name-services are unavailable with error permission denied

example

secd.conn.auth.failure:debug]: Vserver (svm1) could not make a connection over the network to server (ip 10.1.2.3, port 88). Error: Permission denied

 

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