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Intermittent mtuCheckFailure due to misconfigured switch environment

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solidfire
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Applies to

  • NetApp HCI
  • Mellanox Switch

Issue

  • mtuCheckFailure alert occurs intermittently 
  • When performing an icmp test, using below command you get 100% packet loss but if you run a tcpdump from the destination, the icmp request did received but it just happen that the icmp reply somehow not able to receive from the requestor

Commands Used:

  • Source node: 

#ping -I Bond10G -s 9000 <destination_ip>

  • Destination node:

#tcpdump -I Bond10G -ent icmp

Intermittent mtuCheckFailure due to misconfigured switch environment

 

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