Administrator Guide

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Example

DellEMC(conf-if-te-1/8)# Service-class buffer shared-threshold-weight queue5

4 queue7 6

dcb pfc-queues

Configure the number of PFC queues.

Syntax

dcb pfc-queues value

Parameters

value

Enter the number of PFC queues in the range of 0 through 4. The number of ports

supported based on lossless queues configured will depend on the buffer.

Default The default number of PFC queues in the system is 2 for S4810 and 1 for S6000 platforms.

Command Modes CONFIGURATION mode

Command History

This guide is platform-specific. For command information about other platforms, see the relevant Dell EMC

Networking OS Command Line Reference Guide.

Version Description

9.10(0.1) Introduced on the S6010-ON and S4048T-ON.

9.8(1.0) Introduced on the Z9100–ON.

9.8(0.0) Introduced on the S3048-ON and S4048-ON.

9.7(0.0) Introduced on the S6000-ON and Z9500.

9.3(0.0) Introduced on the S4810 and S6000 platforms.

Usage Information You can configure up to a maximum of four lossless (PFC) queues. By configuring four lossless queues, you can

configure four different priorities and assign a particular priority to each application that your network is used to

process. For example, you can assign a higher priority for time-sensitive applications and a lower priority for other

services, such as file transfers. You can configure the amount of buffer space to be allocated for each priority and

the pause or resume thresholds for the buffer. This method of configuration enables you to effectively manage

and administer the behavior of lossless queues.

Example

DellEMC(conf)# dcb pfc-queues 4

dcb {ets | pfc} enable

Enable priority flow control or enhanced transmission selection on interface.

Syntax

dcb {ets | pfc} enable

• To disable ETS on interface, use “no dcb ets enable” command.

• To disable PFC on interface, use “no dcb pfc enable” command.

Defaults Enable

Command Modes INTERFACE