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

QOS - Marking Example on Cisco IOS XR

In this example customer traffic is marked on a Service Provider Router:

If the customer is taking Voip/Gold/Premium service than all traffic that comes from attachment circuit will be marked with Mpls Label value of 5.

policy-map marking-exp-5

class class-default

set mpls experimental imposition 5

end-policy-map

If the customer is taking other types of service, than all traffic that comes from attachment circuit will be marked with Mpls Label value of 0.

policy-map marking-exp-0

class class-default

set mpls experimental imposition 0

end-policy-map

Then these policy-maps should attached the related interfaces through inbound direction

Service-policy input marking-exp-0

or

Service-policy input marking-exp-0