Cisco 3020 - Catalyst Blade Switch Configuration Manual page 554

Cisco catalyst blade switch 3020 for hp software configuration guide, rel. 12.2(25)sef1
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Configuring Standard QoS
Beginning in privileged EXEC mode, follow these steps to configure the port to trust the classification
of the traffic that it receives:
Command
Step 1
configure terminal
Step 2
interface interface-id
Step 3
mls qos trust [cos | dscp | ip-precedence]
Step 4
end
Step 5
show mls qos interface
Step 6
copy running-config startup-config
To return a port to its untrusted state, use the no mls qos trust interface configuration command.
For information on how to change the default CoS value, see the
Interface" section on page
"Configuring the CoS-to-DSCP Map" section on page
Cisco Catalyst Blade Switch 3020 for HP Software Configuration Guide
27-36
Purpose
Enter global configuration mode.
Specify the port to be trusted, and enter interface configuration
mode.
Valid interfaces include physical ports.
Configure the port trust state.
By default, the port is not trusted. If no keyword is specified, the
default is dscp.
The keywords have these meanings:
cos—Classifies an ingress packet by using the packet CoS value.
For an untagged packet, the port default CoS value is used. The
default port CoS value is 0.
dscp—Classifies an ingress packet by using the packet DSCP
value. For a non-IP packet, the packet CoS value is used if the
packet is tagged; for an untagged packet, the default port CoS is
used. Internally, the switch maps the CoS value to a DSCP value
by using the CoS-to-DSCP map.
ip-precedence—Classifies an ingress packet by using the packet
IP-precedence value. For a non-IP packet, the packet CoS value
is used if the packet is tagged; for an untagged packet, the default
port CoS is used. Internally, the switch maps the CoS value to a
DSCP value by using the CoS-to-DSCP map.
Return to privileged EXEC mode.
Verify your entries.
(Optional) Save your entries in the configuration file.
27-37. For information on how to configure the CoS-to-DSCP map, see the
Chapter 27
"Configuring the CoS Value for an
27-59.
Configuring QoS
OL-8915-01

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