Total Bytes Transferred chart data don't match with Min/Max/Average bps.
According to the Min/Max/Average bps, I choose the average received bps in 6-15. It's 39.5422 Mbps.
39.5422 Mbps * 60 *60 *24 / 1000 / 8 = 427 GB (This should be total Receive Transfer in 6-15)
But actually Total Bytes Transferred chart show it's 57.0909 GB
The device type is cisco 6509. There have a huge traffic on it.
I check other device's NPM chart which have less traffic. I use the same calculation to compare Total Bytes Transferred chart and Min/Max/Average bps charts' data. They are match.
So I want to know Total Bytes Transferred chart how to get the data. Read device's MIBs or calculate base on other charts' data?