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This chapter describes the Cisco NX-OS quality of service (QoS) commands that begin with U.
To override the class of service (CoS) value for the selected interface, use the untagged cos command. To revert to the defaults, use the no form of this command.
Class of service (CoS) value for untagged frames. Values can range from 1 to 7. |
Interface configuration mode
Subinterface configuration mode
Virtual Ethernet interface configuration mode
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You can use this command on the following interfaces:
Note Use the no switchport command to configure an interface as a Layer 3 interface.
Note Use the feature-set virtualization command to enable the Cisco Adapter Fabric Extender (Adapter-FEX) on the switch. Use the interface vethernet command to configure a virtual Ethernet interface.
Ethernet frames received with no CoS value are given a CoS value of 0.
On a Cisco Nexus 5548 switch, you can configure a type qos policy map and untagged CoS on the same interface.
This example shows how to set the CoS value to 4 for untagged frames received on an interface:
switch#
configure terminal
switch(config)#
interface ethernet 1/2
switch(config-if)#
untagged cos 4
This example shows how to set the CoS value to 3 for untagged frames received on a Layer 3 interface:
switch#
configure terminal
switch(config)#
interface ethernet 1/5
switch(config-if)#
no switchport
switch(config-if)#
untagged cos 3
switch(config-if)#
This example shows how to set the CoS value to 5 for untagged frames received on a virtual Ethernet interface:
switch#
configure terminal
switch(config)#
feature adapter-fex
Virtualization Plugin license checked out successfully
Virtualization Plugin extracted successfully
All Virtualization processes enabled successfully
switch(config)#
interface vethernet 10
switch(config-if)#
untagged cos 5
switch(config-if)#
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