Addendum

Command
Modes
CONFIGURATION
Command
History
Version 8.3.16.1 Introduced on the MXL 10/40GbE Switch IO Module.
Usage
Information
To associate a priority group with an ETS output policy with scheduling and
bandwidth configuration, create a DCB output policy. You can apply a DCB output
policy on multiple egress ports. When you apply an ETS output policy on an
interface, ETS-configured scheduling and bandwidth allocation take precedence
over any configured settings in QoS output policies.
The ETS configuration associated with 802.1 priority traffic in a DCB output policy
is used in DCBX negotiation with ETS peers.
Related
Commands
dcb-policy output — applies the output policy.
dcb-policy input
Apply the input policy with the PFC configuration to an ingress interface.
Syntax
dcb-policy input policy-name
To delete the input policy, use the no dcb-policy input command.
Parameters
policy-name Enter the input policy name with the PFC configuration to an
ingress interface.
Defaults none
Command
Modes
INTERFACE
Command
History
Version 9.2(0.0) Introduced on the M I/O Aggregator. This command is
supported in Programmable-Mux (PMUX) mode only.
Version 8.3.16.1 Introduced on the MXL 10/40GbE Switch IO Module.
Usage
Information
If you apply an input policy with PFC disabled (no pfc mode on):
• You can enable link-level flow control on the interface. To delete the input
policy, first disable link-level flow control. PFC is then automatically enabled on
the interface because an interface is by default PFC-enabled.
• PFC still allows you to configure lossless queues on a port to ensure no-drop
handling of lossless traffic.
When you apply an input policy to an interface, an error message is displayed if:
• The PFC dot1p priorities result in more than two lossless port queues globally
on the switch.
• You already enabled link-level flow control. PFC and link-level flow control
cannot be enabled at the same time on an interface.
In a switch stack, configure all stacked ports with the same PFC configuration.
Data Center Bridging (DCB)
283