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CLUSTER NETWORK DEGRADED messages after controller upgrade

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Category:
ontap-9
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core
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Applies to

  • ONTAP 9.7P6
  • Controller upgrade
  • Temporary Cluster LIF

Issue

  • Following a controller upgrade, the cluster sends CLUSTER NETWORK DEGRADED alerts with no apparent reason
  • EMS reports ping failure between two Cluster LIFs

Mon Dec 20 04:50:47 +0100 [node02: vifmgr: callhome.clus.net.degraded:alert]: Call home for CLUSTER NETWORK DEGRADED: Total Packet Loss - Ping failures detected between node02_clus1 ( 169.254.2.92 ) on node02 and node01_test ( 169.254.111.226 ) on node01

  • LIF node01_test does not show in the output of network interface show
  • The missing LIF was created to allow controller upgrade to complete and has since been deleted

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