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AutoSupport transmission failure on multiple nodes

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Category:
ontap-9
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core
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Applies to

  • AutoSupport
  • ONTAP 9

Issue

  • AutoSupport transmission failure on multiple nodes
  • Notifyd logs show that the nodes are able to successfully establish a connection to support.netapp.com site over port 443 however the connection times out during the TLS handshake
  • Network trace on e0M reveals significant amount of duplicate ACK packets and retransmits
  • In EMS there are netif.linkErrors observed on e0M for all impacted nodes
  • Impacted nodes are connected to the same management switch

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