The import works but there is no data collection
          Data is stored every 5 minutes in read-only binary files. If no data appears after 5 minutes:
          1.	Check if the provisioned interface is the right WAN interface.
          2.	Check if the interface names are correct and really exist on your routers.
          3.	For Netflow data:
          a.	Check if we effectively receive some data on port 2055:
          > sudo tcpdump port 2055
          The output should look like this:
          tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on eth0, link-type EN10MB (Ethernet), capture size 65535 bytes
18:24:45.415258 IP 172.17.50.12.38828 > ubuntu.lo.2055: UDP, length 128
18:24:46.415282 IP 172.17.50.12.38828 > ubuntu.lo.2055: UDP, length 232
18:24:49.415568 IP 172.17.50.12.38828 > ubuntu.lo.2055: UDP, length 232
18:24:50.415432 IP 172.17.50.12.38828 > ubuntu.lo.2055: UDP, length 232
18:24:53.415579 IP 172.17.50.12.38828 > ubuntu.lo.2055: UDP, length 128
18:24:55.415701 IP 172.17.50.12.38828 > ubuntu.lo.2055: UDP, length 128
          listening on eth0, link-type EN10MB (Ethernet), capture size 65535 bytes
18:24:45.415258 IP 172.17.50.12.38828 > ubuntu.lo.2055: UDP, length 128
18:24:46.415282 IP 172.17.50.12.38828 > ubuntu.lo.2055: UDP, length 232
18:24:49.415568 IP 172.17.50.12.38828 > ubuntu.lo.2055: UDP, length 232
18:24:50.415432 IP 172.17.50.12.38828 > ubuntu.lo.2055: UDP, length 232
18:24:53.415579 IP 172.17.50.12.38828 > ubuntu.lo.2055: UDP, length 128
18:24:55.415701 IP 172.17.50.12.38828 > ubuntu.lo.2055: UDP, length 128
b.	If you have some entries in your tcpdump output with IP 192.168.14.1, you need to run the following command on your server:
          > sudo conntrack –F
          c.	Check if they are some data in /data/files/bridge/flows.
          4.	For SNMP data:
          a.	Check if we effectively receive some data on port 161.
          b.	Check if there are some data in /data/files/bridge/snmp.