White Papers

Version Description
8.3.12.0 Introduced on the S4810.
8.3.16.0 Introduced on the MXL 10/40GbE Switch IO Module.
Usage
Information
● When you configure lossless queues on an interface, PFC priority configuration is not allowed on the
dcb-map profile applied on the interface.
● The maximum number of lossless queues globally supported on the switch is two.
The following lists the dot1p priority-queue assignments.
dot1p Value in
the Incoming
Frame
Description heading
0 1
1 0
2 2
3 3
4 4
5 5
6 6
7 7
● Before configuring the port queues to function as no-drop queues, you must first apply the dcb-map
map with pfc mode off. To apply the dcb-map with pfc mode off, use the following commands:
dcb-map pfcoff and no pfc mode on.
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
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.
The range is from 0 to 7.
Defaults none
Command Modes INTERFACE
Command
History
This guide is platform-specific. For command information about other platforms, refer to the relevant Dell
EMC Networking OS Command Line Reference Guide.
The following is a list of the Dell EMC Networking OS version history for this command.
Version Description
9.10(0.0) Introduced on the S6100-ON.
9.8(1.0) Introduced on the Z9100–ON.
9.7(0.0) Introduced on the Z9500.
9.0.2.0 Introduced on the S6000.
8.3.19.0 Introduced on the S4820T.
8.3.12.0 Introduced on the S4810.
476 Data Center Bridging (DCB)