• XRootD implementation sends firefly only to central collector and not to the real destination using same network path as transferred data
  • useful to test collector and may be to start with some basic monitoring interface
  • not very useful when it comes to probes that capture passing firefly packets
  • very limited functionality - current implementation not really for wider deployment
• passing experiment activity is tricky and needs to be implemented
  • for HTTP-TPC (HTTP COPY operation) it might be useful to use TransferHeader prefix, because these headers (with stripped TransferHeader prefix) are passed also to passive party
    • TransferFlowExp -> TransferHeaderFlowExp (passive party gets FlowExp header)
    • TransferFlowAct -> TransferHeaderFrowAct (passive party gets FlowAct header)
• experiments should provides list of activities they consider useful for packet marking