User's Manual

Important Points to Remember
• If you remove a dot1p priority-to-priority group mapping from a DCB map (the no
priority pgid command), the PFC and ETS parameters revert to their default
values on the interfaces on which the DCB map is applied. By default, PFC is not applied
on specific 802.1p priorities; ETS assigns equal bandwidth to each 802.1p priority.
• To change the ETS bandwidth allocation configured for a priority group in a DCB map, do
not modify the existing DCB map configuration. Instead, first create a new DCB map
with the desired PFC and ETS settings and apply the new map to the interfaces to
override the previous DCB map settings. Then delete the original dot1p priority-priority
group mapping.
Applying a DCB Map on Server-Facing Ethernet Ports
You can apply a DCB map only on a physical Ethernet interface and can apply only one DCB map
per interface.
Task
Command
Command Mode
Enter Interface Configuration
mode on a server-facing port
to apply a DCB map.
interface
{tengigabitEthernet
slot/port |
fortygigabitEthernet
slot/port}
CONFIGURATION
Apply the DCB map on an
Ethernet port.
Repeat this step to apply a
DCB map to more than one
port.
dcb-map name
INTERFACE
Creating an FCoE VLAN
Create a dedicated VLAN to send and receive FC traffic over FCoE links between servers and a
fabric over an NPG. The NPG receives FCoE traffic and forwards de-capsulated FC frames over
FC links to SAN switches in a specified fabric.
When you apply an FCoE map to an Ethernet port, the port is automatically configured as a
tagged member of the FCoE VLAN.
Task
Command
Command Mode
Create the dedicated VLAN for
FCoE traffic.
The range is from 2 to 4094.
VLAN 1002 is commonly used
interface vlan vlan-
id
CONFIGURATION