Configuring A Qos Policy - Cisco NM-8B-U - HW ROUTERS L-M User Manual

Configuration Tasks
Command
Step 3
mls qos cos {default-cos | override}
Step 4
end
Step 5
show mls qos interface
Step 6
copy running-config startup-config
To return to the default setting, use the no mls qos cos {default-cos | override} interface configuration
command.
The mls qos cos command replaced the switchport priority command in Cisco IOS Release
Note
12.1(6)EA2.

Configuring a QoS Policy

Configuring a QoS policy typically requires classifying traffic into classes, configuring policies applied
to those traffic classes, and attaching policies to interfaces.
For background information, see the
section on page
This section contains this configuration information:
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•
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Cisco IOS Release 12.2(2)XT, 12.2(8)T, and 12.2(15)ZJ
90
16- and 36-Port Ethernet Switch Module for Cisco 2600 Series, Cisco 3600 Series, and Cisco 3700 Series
Purpose
Configures the default CoS value for the port.
For default-cos, specify a default CoS value to be assigned to a port. If the
port is CoS trusted and packets are untagged, the default CoS value becomes
the CoS value for the packet. The CoS range is 0 to 7. The default is 0.
Use the override keyword to override the previously configured trust state
of the incoming packets and to apply the default port CoS value to all
incoming packets. By default, CoS override is disabled.
Use the override keyword when all incoming packets on certain ports
deserve higher priority than packets entering from other ports. Even if a port
was previously set to trust DSCP, this command overrides the previously
configured trust state, and all the incoming CoS values are assigned the
default CoS value configured with this command. If an incoming packet is
tagged, the CoS value of the packet is modified with the default CoS of the
port at the ingress port.
Returns to privileged EXEC mode.
Verifies your entries.
(Optional) Saves your entries in the configuration file.
34.
Classifying Traffic by Using ACLs, page 91
Classifying Traffic by Using Class Maps, page 93
Classifying, Policing, and Marking Traffic by Using Policy Maps, page 94
"Classification" section on page 32 and the "Policing and Marking"