Applying A Dcb Map On A Port; Configuring Pfc Without A Dcb Map - Dell S6000–ON Configuration Manual

Applying a DCB Map on a Port

When you apply a DCB map with PFC enabled on a switch interface, a memory buffer for PFC-enabled
priority traffic is automatically allocated. The buffer size is allocated according to the number of PFC-
enabled priorities in the assigned map.
To apply a DCB map to an Ethernet port, follow these steps:
Table 14. DCB Map to an Ethernet Port
Step Task
Enter interface configuration mode on an
1
Ethernet port.
Apply the DCB map on the Ethernet port to
2
configure it with the PFC and ETS settings in
the map; for example:
Dell# interface tengigabitEthernet 1/1/1
Dell(config-if-te-1/1/1)# 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 15. 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.
248
Command
interface
{tengigabitEthernet slot/
port /subport |
fortygigabitEthernet
slot/port}
dcb-map name
Command
interface
{tengigabitEthernet slot/
port /subport |
fortygigabitEthernet
slot/port}
pfc priority
priority-range
Command Mode
CONFIGURATION
INTERFACE
Command Mode
CONFIGURATION
INTERFACE
Data Center Bridging (DCB)