Administrator Guide

transit with FIP snooping is automatically enabled on all VLANs on the switch, using the default FCoE
transit settings.
Task Command Command Mode
Enable an MXL 10/40GbE Switch and M I/O
Aggregator with the FC Flex IO module for the
Fibre Channel protocol.
feature fc
CONFIGURATION
Creating a DCB Map
Configure the priority-based flow control (PFC) and enhanced traffic selection (ETS) settings in a DCB
map before you apply them on downstream server-facing ports on an MXL 10/40GbE Switch or an M I/O
Aggregator with the FC Flex IO module.
Step Task Command Command Mode
1
Create a DCB map to specify PFC and ETS
settings for groups of dot1p priorities.
dcb-map name
CONFIGURATION
2
Configure the PFC setting (on or off) and the
ETS bandwidth percentage allocated to traffic
in each priority group. Configure whether the
priority group traffic should be handled with
strict-priority scheduling. The sum of all
allocated bandwidth percentages must be
100 percent. Strict-priority traffic is serviced
first. Afterward, bandwidth allocated to other
priority groups is made available and allocated
according to the specified percentages. If a
priority group does not use its allocated
bandwidth, the unused bandwidth is made
available to other priority groups.
Restriction: You can enable PFC on a
maximum of two priority queues.
Repeat this step to configure PFC and ETS
traffic handling for each priority group, for
example: priority-group 0 bandwidth
60 pfc off priority-group 1
bandwidth 20 pfc onpriority-group 2
bandwidth 20 pfc on
priority-group 4
strict-priority pfc off
priority-group
group_num {bandwidth
percentage | strict-
priority} pfc {on | off}
DCB MAP
3
Specify the priority group ID number to handle
VLAN traffic for each dot1p class-of-service: 0
through 7. Leave a space between each
priority group number. For example,
priority-pgid 0 0 0 1 2 4 4 4 where
dot1p priorities 0, 1, and 2 are mapped to
priority group 0; dot1p priority 3 is mapped to
priority group 1; dot1p priority 4 is mapped to
priority group 2; dot1p priorities 5, 6, and 7 are
mapped to priority group 4.
priority-pgid
dot1p0_group_num
dot1p1_group_num
dot1p2_group_num
dot1p3_group_num
dot1p4_group_num
dot1p5_group_num
dot1p6_group_num
dot1p7_group_num
DCB MAP
FC Flex IO Modules
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