Configure SFLOW for fortigate
Its easy to configure sflow for fortigate device. config system interface edit internal set sflow-sampler enable set sample-rate 512 set polling-interval 20 next config system sflow set collector-ip <X.X.X.X> set collector-port 9997 set source-ip 0.0.0.0 end After configuring the same you can make use of SFlowTrend from inMon which is free.