Reference Guide

- -
- Denotes dynamic buffering is enabled in respective queues
On interface in which PFC is not enabled:
Dell#show interface tengigabitethernet 0/20 pfc buffer-
threshold
The following table describes the output fields displayed for the show interface
pfc buffer-threshold command:
Field Description
queue Number of the queue
lossless Whether the queue is a lossy or lossless
queue for which buffer threshold is
configured
buffer-size Ingress buffer size
pause-threshold-value Buffer limit at which the port sends the
pause to peer in KB.
resume-threshold-value Buffer offset limit at which the port
resumes the peer in KB.
shared threshold weight Weightage of the priorities on the
shared buffer size in the system.
dcb pfc-queues
Configure the number of PFC queues. This utility is supported on the and platforms.
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
Version 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
592
Data Center Bridging (DCB)