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One cluster network port does not return home after upgrading one C3132Q switch

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fabric-interconnect-and-management-switches
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hw
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Applies to

  • 40G cluster network ports on 10/40 Gigabit Ethernet Controller XL710 QSFP+ card
  • Two cluster LIFs per node and port.
  • Cisco N3K-C3132Q-V cluster network switches (CNS)
  • NX-OS 7.0(3)I7(9) with Nexus_3132QV_RCF_v1.6-Cluster-HA-Breakout
  • NX-OS 7.0(3)I7(10) with Nexus-3132QV-RCF-v1.8-Cluster-Breakout

Issue

  • First Cluster Network Switch Nexus N3K-C3132Q-V model updated, from NX-OS 7.0(3)I7(9) to 7.0(3)I7(10) and new RCF 1.8 applied
  • When just one cluster network port in one node is online, multiple rings in that node are offline (vifmgr, vldb and mgwd) with CLUSTER NETWORK DEGRADED errors.
  • No more errors when that port is manually offlined and the cluster LIF changes the home port. 
  • Cable re-seat/replace/swap doesn't fix the issue.
  • Controller port is properly detected in the switch side.
  • All cluster network pings fail between LIFs on both switches but work for LIFs connected to the same switch.

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