Configuring Pfc Without A Dcb Map - Dell C9000 Series Networking Configuration Manual

Step Task
Apply the DCB map on the Ethernet
2
port to configure it with the PFC and
ETS settings in the map; for example:
Dell# interface tengigabitEthernet 1/1
Dell(config-if-te-1/1)# dcb-map
SAN_A_dcb_map1 Repeat Steps 1 and
2 to apply a DCB map to more than
one port.
You cannot apply a DCB map on an
interface that has been already
configured for PFC using thepfc
priority command or which is
already configured for lossless queues
(pfc no-drop queues command).

Configuring PFC without a DCB Map

In a network topology that uses the default ETS bandwidth allocation (assigns equal bandwidth to each
priority), you can also enable PFC for specific dot1p-priorities on individual interfaces without using a DCB
map. This type of DCB configuration is useful on interfaces that require PFC for lossless traffic, but do not
transmit converged Ethernet traffic.
Table 16. Configuring PFC without a DCB Map
Step Task
1 Enter interface configuration mode on
an Ethernet port.
2 Enable PFC on specified priorities.
Range: 0-7. Default: None.
Separate priority values with a
comma. Specify a priority range with a
dash, for example: pfc priority 3,5-7
1 You cannot configure PFC using
the pfc priority command
on an interface on which a DCB
map has been applied or which is
already configured for lossless
queues (pfc no-drop queues
command).
Command
fortygigabitEthernet
slot/port}
dcb-map name
Command
interface {tengigabitEthernet
slot/port |fortygigabitEthernet
slot/port}
pfc priority priority-range
Command Mode
INTERFACE
Command Mode
CONFIGURATION
INTERFACE
Data Center Bridging (DCB) 300