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Chapter 32
Configuring QoS
Enabling QoS Globally
By default, QoS is disabled on the switch.
Beginning in privileged EXEC mode, follow these steps to enable QoS. This procedure is required.
Command
Step 1
configure terminal
Step 2
mls qos
Step 3
end
Step 4
show mls qos
Step 5
copy running-config startup-config
To disable QoS, use the no mls qos global configuration command.
Enabling VLAN-Based QoS on Physical Ports
By default, VLAN-based QoS is disabled on all physical switch ports. The switch applies QoS, including
class maps and policy maps, only on a physical-port basis. You can enable VLAN-based QoS on a switch
port.
Beginning in privileged EXEC mode, follow these steps to enable VLAN-based QoS. This procedure is
required on physical ports that are specified in the interface level of a hierarchical policy map on an SVI.
Command
Step 1
configure terminal
Step 2
interface interface-id
Step 3
mls qos vlan-based
Step 4
end
Step 5
show mls qos interface interface-id
Step 6
copy running-config startup-config
Use the no mls qos vlan-based interface configuration command to disable VLAN-based QoS on the
physical port.
OL-8915-03
Purpose
Enter global configuration mode.
Enable QoS globally.
QoS runs with the default settings described in the
Standard QoS Configuration" section on page
"Queueing and Scheduling on Ingress Queues" section on
page
32-15, and the
Queues" section on page
Return to privileged EXEC mode.
Verify your entries.
(Optional) Save your entries in the configuration file.
Purpose
Enter global configuration mode.
Specify the physical port, and enter interface configuration
mode.
Enable VLAN-based QoS on the port.
Return to privileged EXEC mode.
Verify if VLAN-based QoS is enabled on the physical port.
(Optional) Save your entries in the configuration file.
Cisco Catalyst Blade Switch 3020 for HP Software Configuration Guide
Configuring Standard QoS
"Queueing and Scheduling on Egress
32-17.
"Default
32-31, the
32-35
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Troubleshooting
