Verifying The Priority Flow Control Configuration; Configuration Examples For Priority Flow Control - Cisco Nexus 9000 Series Configuration Manual

Verifying the Priority Flow Control Configuration

Command or Action
Step 3 hardware qos internal-interface pause buffer-size
buffer-size pause-threshold xoff-size resume-threshold
xon-size
Verifying the Priority Flow Control Configuration
To display the PFC configuration, perform the following task:
Command
show interface priority-flow-control [module
number]

Configuration Examples for Priority Flow Control

The following example shows how to configure PFC:
configure terminal
interface ethernet 5/5
priority-flow-control mode on
The following example shows how to enable PFC on a traffic class:
switch(config)# class-map type qos c1
switch(config-cmap-qos)# match cos 3
switch(config-cmap-qos)# exit
switch(config)# policy-map type qos p1
switch(config-pmap-qos)# class type qos c1
switch(config-pmap-c-qos)# set qos-group 3
switch(config-pmap-c-qos)# exit
switch(config-pmap-qos)# exit
switch(config)# class-map type network-qos match-any c1
switch(config-cmap-nqos)# match qos-group 3
switch(config-cmap-nqos)# exit
switch(config)# policy-map type network-qos p1
switch(config-pmap-nqos)# class type network-qos c-nq1
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Purpose
• The pause buffer-size option specifies the pause buffer
size. The values must be between 27456 and 12582912.
The values are applied across all no-drop classes across
all the internal interfaces.
• The pause-threshold option specifies the
pause-threshold xoff-size. The values must be between
12480 and 12582912. The values are applied across
all no-drop classes across all the internal interfaces.
• The resume-threshold option specifies the
resume-threshold xon-size. The resume-threshold
values must be between 12480 and 12582912. The
values are applied across all no-drop classes across all
the internal interfaces.
To remove the configuration, use the no form of this
command.
Purpose
Displays the status of PFC on all interfaces or on
specific modules.
Configuring Priority Flow Control