sflow to pcap file


1. install sflowtool
2. use tcpdump to write pcap file

 sflowtool -4 -p 6343 -t | tcpdump -r - -G 300 -w 'admin_%d-%m_%Y_%H_%M.pcap'

20191206

Steps to use cacti automation

1. create devices rules，graph rules
2.  create network discovery rules
3. discovery devices，add devices
2. apply graph rule to added device