Command Reference Guide

Priority-Based Flow Control Commands
CLI Command Reference
September 2014 Page 496
HP Moonshot Switch Module CLI Command Reference
Example: The following example enables PFC on an interface.
(Routing) (Config)#interface 1/0/3
(Routing) (Interface 1/0/3)#datacenter-bridging
(Routing) (config-if-dcb)#priority-flow-control mode on
no priority-flow-control mode
Use the no priority-flow-control mode command to return the PFC mode to the default (off).
priority-flow-control priority
Use the priority-flow-control priority command in Datacenter-Bridging Config mode to enable the priority
group for lossless (no-drop) or lossy (drop) behavior on the selected interface. Up to two lossless priorities can
be enabled on an interface. The administrator must configure the same no-drop priorities across the network
in order to ensure end-to-end lossless behavior.
The command has no effect on interfaces not enabled for PFC. VLAN tagging needs to be turned on in order to
carry the dot1p value through the network. Additionally, the dot1pmapping to class of service must be set to
one to one.
Example: The following example sets priority 3 to no drop behavior.
(Routing) (Config)#interface 1/0/3
(Routing) (Interface 1/0/3)#datacenter-bridging
(Routing) (config-if-dcb)#priority-flow-control mode on
(Routing) (config-if-dcb)#priority-flow-control priority 1 no-drop
Parameter Description
on Enable PFC on the interface.
off Disable PFC on the interface.
Format
no priority-flow-control mode
Mode Datacenter-Bridging Config mode
Default The default behavior for all priorities is drop.
Format
priority-flow-control priority priority-list {drop | no-drop}
Mode Datacenter-Bridging Config mode
Parameter Description
drop Disable lossless behavior on the selected priorities.
no-drop Enable lossless behavior on the selected priorities.