Reference Guide

Data Center Bridging (DCB) | 293
Figure 15-4. DCBx Sample Topology
DCBx Prerequisites and Restrictions
The following prerequisites and restrictions apply when you configure DCBx operation on a port:
• DCBx requires LLDP in both send (TX) and receive (RX) mode to be enabled on a port interface
(
protocol lldp mode command; refer to the example in CONFIGURATION versus INTERFACE
Configurations in the Link Layer Discovery Protocol (LLDP) chapter). If multiple DCBx peer ports
are detected on a local DCBx interface, DCBx is shut down on the interface.
• The DCBx version you configure on an interface (Refer to DCBx Configuration Procedure)
determines the server CNA traffic that is handled: