Users Guide

shared-
threshold-
weight on the
queue
% of available shared buffer that can be consumed by the queue
7 33.33%
8 50%
9 66.67%
10 80%
11 88.89%
Example
Dell(conf-if-te-1/8/1)# 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 Networking
OS Command Line Reference Guide.
Version Description
9.8(1.0) Introduced on the Z9100–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
Dell(conf)# dcb pfc-queues 4
dcb {ets | pfc} enable
Enable priority flow control or enhanced transmission selection on interface.
Syntax
dcb {ets | pfc} enable
496 Data Center Bridging (DCB)