Command Reference Guide

Data Center Bridging | 461
pfc priority
Configure the CoS traffic to be stopped for the specified delay.
Syntax
pfc priority priority-range
To delete the pfc priority configuration, use the no pfc priority command.
Parameters
Defaults
None
Command Modes
DCB INPUT POLICY
Command
History
Related
Commands
Usage
Information
you can enable any number of 802.1p priorities for PFC. Queues to which PFC priority traffic is
mapped are lossless by default. Traffic may be interrupted due to an interface flap (going down and
coming up) when you reconfigure the lossless queues for no-drop priorities in a PFC input policy and
re-apply the policy to an interface.
The maximum number of lossless queues supported on the switch is two.
The configured priority traffic must be supported by a PFC peer (as detected by DCBX) for PFC to be
applied.
priority-group
Create an ETS priority group to use with an ETS output policy.
Syntax
priority-group group-name
To remove the priority group, use the no priority-group command.
Parameters
Defaults
none
Command Modes
CONFIGURATION
priority-range
Enter the 802.1p values of the frames to be paused. Separate the priority values with a
comma; specify a priority range with a dash; for example, pfc priority 1,3,5-7.
Range: 0 to 7.
Version 8.3.12.0 Introduced on the S4810.
Version 8.3.16.0 Introduced on MXL 10/40GbE Switch IO Module
dcb-input Create a DCB input policy.
group-name
Enter the name of the ETS priority group.
Maximum: 32 characters.