Configuring an Interface Level QoS Traffic Class

The incoming interface QoS Traffic Class (TC) is applied for incoming packet if it is an un-tagged packet and it is being Layer 2 forwarded.

The default value for QoS Traffic Class is 0 (zero). Supported range of TC is 0 to 7.

Follow these steps to configure an interface's QoS Traffic Class.

1. Enter the global configuration mode.
   

   SLX # configure terminal 
   SLX (config)# 

2. Enter interface configuration mode.
   

   SLX (config)# interface ethernet 0/2
   SLX (conf-if-eth-0/2)# 

3. Configure the QoS TC for the interface
   

   SLX (conf-if-eth-0/2)#qos traffic-class 5
   SLX (conf-if-eth-0/2)# 

4. Exit out of the Interface Configuration mode
   

   SLX (conf-if-eth-0/2)# exit
   SLX #

5. Verify your configuration using the show qos interface eth 0/2 command.
   

   SLX #show qos interface eth 0/2
   Interface Ethernet 0/2
   Default TC: 5 
6. Save the Running Configuration file to the Startup Configuration file.
   

   SLX #copy running-config startup-config
   SLX #

This example shows the above steps in a consolidated format:

SLX # configure terminal
SLX (config)# interface ethernet 0/2
SLX (conf-if-eth-0/2)# qos traffic-class 5
SLX (conf-if-eth-0/2)# end
SLX # show qos interface eth 0/2