Brocade Network OS Administrator’s Guide v4.1.1 - Manual (Page 489)

Configuring user-priority mappings
To configure user-priority mappings, perform the following steps from privileged EXEC mode.
1. Enter global configuration mode.
switch# configure terminal
2. Specify the Ethernet interface.
The gigabitethernet rbridge-id/slot/port operand is used only for the Brocade VDX 6710, VDX
8770-4, and VDX 8770-8. The prompt for these ports is in the following format: switch(config-if-
gi-22/0/1)#.
switch(config)# interface tengigabitethernet 1/2/2
3. Configure the interface to priority 3.
switch(conf-if-te-1/2/2)# qos cos 3
4. Return to privileged EXEC mode.
switch(conf-if-te-1/2/2)# end
5. Enter the copy command to save the running-config file to the startup-config file.
switch# copy running-config startup-config
Creating a CoS-to-CoS mutation QoS map
To create a CoS-to-CoS mutation, perform the following steps from privileged EXEC mode.
1. Enter global configuration mode.
switch# configure terminal
2. Create the CoS-to-CoS mutation QoS map. In this example "test" is the map name.
switch(config)# qos map cos-mutation test 0 1 2 3 4 5 6 7
3. Enter the do copy command to save the running-config file to the startup-config file.
switch(config)# do copy running-config startup-config
Applying a CoS-to-CoS mutation QoS map to an interface
To apply a CoS-to-CoS mutation QoS map, perform the following steps from privileged EXEC mode.
1. Enter global configuration mode.
switch# configure terminal
2. Specify the Ethernet interface.
The gigabitethernet rbridge-id/slot/port operand is used only for the Brocade VDX 6710, VDX
8770-4, and VDX 8770-8.
switch(config)# interface tengigabitethernet 2/1/2
3. Activate or apply changes made to the CoS-to-CoS mutation QoS map. In this example, "test" is the
map name.
switch(conf-if-te-2/1/2)# qos cos-mutation test
NOTE
To deactivate the mutation map from an interface, enter no qos cos-mutation name.
4. Specify the trust mode for incoming traffic.
Use this command to specify the interface ingress QoS trust mode, which controls user-priority
mapping of incoming traffic. The untrusted mode overrides all incoming priority markings with the
Interface Default CoS. The CoS mode sets the user priority based on the incoming CoS value, if the
incoming packet is not priority tagged, then fallback is to the Interface Default CoS value.
switch(conf-if-te-2/1/2)# qos trust cos
Configuring user-priority mappings
Network OS Administrator’s Guide 489
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