Enabling Congestion Notification

Congestion notification must be globally enabled on the switch for congestion notification to be operational. Use the set dcb cn global command to globally enable congestion notification on the switch. This command globally enables congestion notification on the switch, but it does not affect the state of a created CNPV. See Congestion Notification Priority Value (CNPV) for CNPV creation and activation information. Congestion notification is globally enabled by default.

The transmit priority option of the set dcb cn global command allows you to modify the transmit priority value of the CNM PDUs sent from the congestion point to the reaction point when congestion is detected. The default value is priority 6.