Adds iperf timeout for bandwith measurements.

measurement_main.py

@@ -267,6 +267,7 @@ def connect_moden(provider="telekom"):
 def reconnect_modem(provider="telekom"):
     print_message("Reonnect modem with provider {} ...".format(provider))
     os.system("/root/connect-modem.py -s")
+    sleep(5)
     os.system("/root/connect-modem.py -l {}".format(provider))
     print_message("...done")