Netflow Analyzer and mpls

Netflow Analyzer and mpls

We would like to be able to see the vrf information in our flows on mpls interfaces.  I used the Cisco guide for ingress vrf support, but do not see any flows.  Is it a configuration issue or is it not a feature?

flow record VRF-RECORD
 match routing vrf input
 match ipv4 source address
 match ipv4 destination address
 collect interface input
 collect interface output
 collect counter bytes long
 collect counter packets long

flow monitor MPLS
 exporter DS_EXPORTER
 record VRF-RECORD

interface GigabitEthernet0/0/0
 ip flow monitor MPLS input
 ip flow monitor MPLS output
 mpls ip