CONTAP-276943: During controller upgrade, e0a or e0b cluster ports on old node do not link up when connected to cluster ports on new node
Issue
- For controller upgrade, temporary 10GbE cluster connections with new nodes are required when the old nodes use 10GbE cluster ports.
- During a controller upgrade in a two-node switchless cluster, 10GbE e0a or e0b cluster ports on older AFF A300/FAS8200 nodes might not link up when connected to 10/25GbE ports on newer AFF A20, AFF A30, AFF A50 or FAS50 nodes.