Reference Guide

66 | Data Center Bridging (DCB)
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Figure 5-7. DCBX Sample Topology
DCBx Prerequisites and Restrictions
• DCBx requires LLDP in both send (TX) and receive (RX) mode to be enabled on a port interface. If
multiple DCBx peer ports are detected on a local DCBx interface, LLDP is shut down.
• The CIN version of DCBx supports only PFC, ETS, and FCOE; it does not support iSCSI, backward
congestion management (BCN), logical link down (LLD), and network interface virtualization (NIV).