Cisco ASR 9000 Series Routing Configuration Manual page 166

Source and destination-based flow tag
You will not be able to enable both QPPB and flow tag feature simultaneously on an interface.
Note
SUMMARY STEPS
1. configure
2. interface type interface-path-id
3. ipv4 | ipv6 bgp policy propagation input flow-tag{destination |source}
4. commit
DETAILED STEPS
Command or Action
Step 1 configure
Step 2 interface type interface-path-id
Example:
RP/0/RSP0/CPU0:router(config-if)# interface
GigabitEthernet 0/0/0/0
Step 3 ipv4 | ipv6 bgp policy propagation input
flow-tag{destination |source}
Example:
RP/0/RSP0/CPU0:router(config-if)# ipv4 bgp policy
propagation input flow-tag source
Step 4 commit
The following show commands display outputs with PBR policy applied on the router:
show running-config interface gigabitEthernet 0/0/0/12
Thu Feb 12 01:51:37.820 UTC
interface GigabitEthernet0/0/0/12
service-policy type pbr input flowMatchPolicy
ipv4 bgp policy propagation input flow-tag source
ipv4 address 192.5.1.2 255.255.255.0
!
RP/0/RSP0/CPU0:ASR9K-0#show running-config policy-map type pbr flowMatchPolicy
Thu Feb 12 01:51:45.776 UTC
policy-map type pbr flowMatchPolicy
class type traffic flowMatch36
transmit
!
class type traffic flowMatch38
transmit
!
class type traffic class-default
!
end-policy-map
!
Cisco ASR 9000 Series Aggregation Services Router Routing Configuration Guide, Release 5.3.x
136
Purpose
Enters interface configuration mode and associates
one or more interfaces to the VRF.
Enables flow-tag policy propagation on source or
destination IP address on an interface.
Implementing BGP