Operation Manual

Configuration Guide 454
Configuring QoS DiffServ Configuration

Configuring Port Priority
Select the desired port to set the priority. Packets from this ingress port are mapped to the
TC queue based on port priority.
Step 1 configure
Enter global configuration mode.
Step 2 interface {fastEthernet
port
| range fastEthernet
port-list
| gigabitEthernet
port
| range
gigabitEthernet
port-list
}
Enter interface configuration mode.
Step 3 show qos cos-map
Check the CoS-id-TC mapping relations.
Step 4 qos
cos-id
Configure the CoS value of the port. The packets are firstly mapped to CoS queues, then to TC
queues according to the CoS-id-TC mapping relations.
cos-id
:
Configure the CoS-id value. The valid values are from 0 to 7.
Step 5 show qos interface [fastEthernet
port-list
| gigabitEthernet
port-list
] [port-channel
lagid-list
]
Verify the CoS value of the port. If no port is specified, it displays the CoS values of all ports.
port-list:
The list of Ethernet ports.
lagid-list:
The list of LAGs.
Step 6 end
Return to privileged EXEC mode.
Step 7 copy running-config startup-config
Save the settings in the configuration file.
Note:
All the ports in the same LAG should be assigned with the same port priority.
The following example shows how to map port 1-3 to TC1, and keep other mapping
relations as default:
Switch#configure