Addendum
If a priority group does not use its allocated bandwidth, the unused bandwidth is
made available to other priority groups.
To remove a priority-group configuration in a DCB map, enter the no priority-
group bandwidth pfc command.
By default, equal bandwidth is assigned to each dot1p priority in a priority group.
Use the bandwidth parameter to configure the bandwidth percentage assigned to
a priority group. The sum of the bandwidth allocated to all priority groups in a DCB
map must be 100% of the bandwidth on the link. You must allocate at least 1% of
the total port bandwidth to each priority group.
Related
Commands
dcb-map – creates a DCB map to configure PFC and ETS parameters and applies
the PFC and ETS settings on Ethernet ports.
priority-pgid – configures the 802.1p priority traffic in a priority group for a DCB
map.
priority-group qos-policy
Associate the 802.1p priority traffic in a priority group with the ETS configuration in a QoS output policy.
Syntax
priority-group group-name qos-policy ets-policy-name
To remove the 802.1p priority group, use the no priority-group qos-policy
command.
Parameters
group-name Enter the group name of the 802.1p priority group. The
maximum is 32 characters.
ets-policy-
name
Enter the ETS policy name.
Defaults none
Command
Modes
DCB OUTPUT POLICY
Command
History
Version 9.3.0.0 Introduced on the FC Flex IO module installed in the M I/O
Aggregator and MXL 10/40GbE Switch.
Usage
Information
The ETS configuration associated with 802.1p priority traffic in a DCB output policy
is used in DCBX negotiation with ETS peers.
If you disable ETS in an output policy applied to an interface using the no ets
mode on command, any previously configured QoS settings at the interface or
global level take effect. If you configure QoS settings at the interface or global level
and in an output policy map (the service-policy output command), the QoS
configuration in the output policy takes precedence.
Related
Commands
• dcb-output — creates a DCB output policy.
• dcb-policy output — applies the output policy.
508
Data Center Bridging (DCB) for FC Flex IO Modules