Communication
MPOC manually contact CPOC
Once proved, CPOC updates ACL of every nimid
MPOC can send messages to nimid
SCHEDULE_TEST http://nimi.psc.edu/ runtreno 99:10:16:13:10:00 nimi.fnal.gov
nimid looks up in its ACL and run test
nimid send DATA_RDY message to MPOC
MPOC send GET_DATA message to nimid