This section shows the monitoring graphs history of established and pending connections of the current farm in four different periods of time: last day, last week, last month and last year.
The accounted connections would be:
Established. Connections assured and marked as ESTABLISHED and the connection is assured. For L4xNAT profile farms this means connected to a backend (as it behaves like a router). For HTTP profiled farms this means connected to the virtual server.
Pending. Connections marked as SYN and the connection is not yet assured. An increasing value means a higher rate of requests received that can’t be served.
Each graph also indicates last value gathered, minimum, maximum and average values.
Next step, see the backends stats.