Reference Guide

Data Center Bridging | 481
Table 13-1 lists the dot1p priority-queue assignments.
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.
Table 13-1. dot1p Priority-Queue Assignments
dot1p Value in the Incoming Frame Egress Queue Assignment
00
10
20
31
42
53
63
73
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 8.3.19.0 Introduced on the S4820T.
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.