Comparing Metered Licensing Reports to Other Network Graphs and Reports

There is a data discrepancy between the Network Metrics graphs and the Metered Licensing Report for Peak Throughput. This is because:

• The network graphs on the Monitoring tab and in the reports available from Settings and Configuration > Reporting generate network metrics based on throughput recorded on all the network interfaces on the LoadMaster. This includes the entire packet size transfer in or out of the LoadMaster (IP header, TCP header, and TCP segment transferred in or out of the LoadMaster).
• The graphs and reports also includes TCP overhead such as plain ACK, connection establishment, termination, retransmission, and so on.
• For the Metered Licensing reports available under Settings and Configuration > Metered Licensing Management, only the maximum throughput of data transfer for Virtual Services is recorded. This only accounts for application data (HTTP request/response in case of HTTP transactions) transferred for all the Virtual Services. This does not include any TCP overhead to transmit the data.
• For a single transaction, there are approximately equal amounts of traffic between the client and Virtual Server and between the Virtual Server and the Real Server. The network interface accounts for both sides of traffic but for Virtual Service data transfer (billed in Metered Licensing), only application data transfer between the client and the Virtual Server is recorded.