Each server is statically pinned to a single Fabric Interconnect uplink port or port channel using manual configuration. The administrator will have to make sure the data traffic from the servers is equally distributed among Fabric Interconnects.
In case of a northbound uplink, port channel, or Fabric Interconnect failure where a server is statically pinned to, the server connection will be transferred to other Fabric Interconnects where the server will be dynamically pinned to available uplink ports or port channels, provided the fabric failover is configured for the vNIC.