Configuration Guide     444
Configuring QoS DiffServ Configuration
Switch(config)#show qos status
802.1p priority is disabled.
DSCP priority is enabled.
Switch(config)#show qos dscp-map
...
----------------------------------------------------------------------------------
DSCP     8            9           10         11         12          13         14         15
CoS         CoS1   CoS1   CoS0   CoS0   CoS0   CoS0   CoS0   CoS1
----------------------------------------------------------------------------------
...
Switch(config)#end
Switch#copy running-config startup-config
 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
 | port-channel
 lagid
 | range port-channel
 laglist 
}
Enter interface configuration mode.
Step 3 show qos cos-map
Check the CoS-id-TC mapping relations.
Step 4 For T1600G-18TS:
qos 
tc-id
Configure the TC queue of the port. 
tc-id:
 Specify the TC-ID. The valid values are from 0 to 7.
For other switches:
qos 
cos-id
Configure the CoS value of the port. The packets are firstly mapped to CoS, 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.