EmuStack: An OpenStack-Based DTN Network Emulation Platform (Extended Version)

Algorithm 1

Synchronous control on Neutron-Netem agent.

(1) INIT protocol software

(2) WHILE current_time < starting_time

(3)     sleep SLEEP_TIME miliseconds

(4) END WHILE

(5)

(6) INIT topology control

(7) INIT link characteristics control

(8) START state collection

(9)

(10) SET counter to 0

(11) WHILE counter < CONTROL_PERIOD

(12)  increment counter

(13)  next_time = start_time +  

        LOOP_CYCLE counter

(14)  control topology

(15)  control link characteristics

(16)  control protocol software

(17)  IF current_time – next_time > THRESHOLD

(18)   collect error log

(19)  END IF

(20)  WHILE current_time < next_time

(21)   sleep SLEEP_TIME miliseconds

(22)  END WHILE

(23) END WHILE

(22) KILL all experiment processes