QOS - Marking Example 2 on Cisco IOS XR

These configurations classify the IP packets based on the DSCP values.These IP packets are tagged with MPLS labels when they pass through the router.MPLS experimental bits of these labels are marked according to the DSCP classes.

class-map match-any dscp-0

 match dscp 0

 end-class-map

!

class-map match-any dscp-ef

 match dscp ef

 end-class-map

!

class-map match-any dscp-af11

 match dscp af11

 end-class-map

policy-map Qos-marking

 class dscp-ef

  set mpls experimental topmost 5

 !

 class dscp-af11

  set mpls experimental topmost 1

 !

 class dscp-0

  set mpls experimental topmost 2

 !

 class class-default

 !

 end-policy-map        

!

interface gigabitEthernet 0/1/0/20.1

service-policy input marking