It was our understanding that SFlow is sampled flow data as evidenced by the fact that the sampling is set to 100 meaning that 1 packet per hundred is forwarded to the flow collector. JFlow or Netflow we thought was full flow analysis not just a traffic sample.
We know that what we are getting is only a 1/100th sample of the actual data since our Scrutinizer server is showing 1/100th of the interface traffic which is what we would expect. Our experience with Netflow is that is provides ALL of the flow data in an aggregated format and in that case the Scrutinizer server agrees with SNMP bandwidth data and shows 100 percent of all flows.
I would have to put a network analyzer inline to sample the data packet from the router to the netflow server but from the data collected, it sure looks a lot more like sflow than netflow.
Steven Naslund
Chicago IL