Brocade 5600 vRouter configuration to export v9:
vyatta@R1# set service flow-monitoring exporter udp-collector address <NFA serverIP>
vyatta@R1# set service flow-monitoring exporter udp-collector port 9996
vyatta@R1# set service flow-monitoring selector s1 randomly out-of 100
Apply this command for all the interfaces of the device:
vyatta@R1# set interfaces dataplane Interface flow-monitoring selector s1