Data Center Bridging (DCB)
Data Center Bridging is a family of Ethernet enhancements for converged data-center networks with different traffic requirements.
Roles: PFC controls link-level congestion loss; Enhanced Transmission Selection assigns bandwidth among traffic classes; congestion notification and neighbor capability/configuration exchange address other parts of network operation. [1]
Interpretation: DCB is not a storage command protocol or another name for FCoE. Identify the supported features and their configuration instead of treating a DCB label as an end-to-end service guarantee. [1]