The universal HBA has two operating protocol modes:
Fibre Channel (FC) Only
Converged Network Adapter (CNA) (or, FCoE)
The operating protocol mode determines how the system recognizes the universal HBA configuration that you choose to implement.
Whenever you change the configuration of the universal HBA, you must ensure that the correct operating protocol mode (FC Only or CNA) is associated with the new universal HBA configuration on the system. Figure 9, Table 9, Required Adapter Operating Protocol Mode for Each Configuration shows the correct operating protocol mode that is associated with each configuration of the universal HBA.
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