With netflow sampling netflow data and SNMP data become even more different.
To compare data you need to multiply to the sampling factor N and then you may need to convert traffic volumes expressed in bytes to average bit rates (as the ones expressed using SNMP MIB variables by MRTG or other monitoring tools).
For doing this you need to know the time window in which netflow data traffic has been aggregated.
The sum of all Netflow flows should be near to the SNMP data on the interface.
Some years ago when I did my first tests on Netflow I did test labs and I compared netflow data and SNMP MIBs with good results in those simple tests with standard Netflows they matched exactly.
This is something you could do for the customer to convince them on the accuracy of netflow data.
We are pleased to announce availability of Beta software for 16.6.3. 16.6.3 will be the second rebuild on the 16.6 release train targeted towards Catalyst 9500/9400/9300/3850/3650 switching platforms. We are looking for early feedback from custome...