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Configuring QoS Class of Service Configuration
User Guide 649
Step 2 interface {fastEthernet
port
| range fastEthernet
port-list
| gigabitEthernet
port
| range
gigabitEthernet
port-list
| ten-gigabitEthernet
port
| range ten-gigabitEthernet
port-list
|
port-channel
port-channel-id
| range port-channel
port-channel-list
}
Enter interface configuration mode.
Step 3 qos trust mode {
untrust
|
dot1p
|
dscp
}
Select the trust mode for the port. By default, it is untrust. Here we set the trust mode as dot1p.
dot1p:
Specify the ports’ trust mode as dot1p. In this mode, the tagged packets will be
processed according to the 802.1p priority configuration and the untagged packets will be
processed according to the port priority configuration.
Step 4 show qos trust interface [fastEthernet
port
| gigabitEthernet
port
| ten-gigabitEthernet
port
| port-channel
port-channel-id
]
Verify the trust mode of the ports.
Step 5 end
Return to privileged EXEC mode.
Step 6 copy running-config startup-config
Save the settings in the configuration file.
â– Configuring the 802.1p to Queue Mapping and 802.1p Remap
Follow these steps to configure the 802.1p to queue mapping and 802.1p remap:
Step 1 configure
Enter global configuration mode
Step 2 qos cos-map {
dot1p-priority
} {
tc-queue
}
Specify the 802.1p to queue mapping. The packets with the desired 802.1p priority will be put
in the corresponding queues. By default, the 802.1p priority 0 to 7 is respectively mapped to
TC-1, TC-0, TC-2, TC-3, TC-4, TC-5, TC-6, TC-7.
dot1p-priority:
Specify the 802.1p priority. The valid values are from 0 to 7.
tc-queue:
Specify the ID number of the TC queue. The valid values are from 0 to 7.
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