About the Connection History report
The Connection History report shows connection counts for a variety of connection types for the time period specified.
This report includes IPv6 and packet-mode optimized traffic.
The Connection History report contains these statistics that summarize connection activity:
Optimized
Displays the total connections established and optimized, plus the half-open and half-closed connections (where half-open and half-closed are TCP connection states).
Optimized (Active)
Displays the total active connections established, optimized, and flowing.
Passthrough
Displays the total connections passed through unoptimized.
Forwarded
Displays the total number of connections forwarded by the connection-forwarding neighbor managing the connection.
Optimized (Half Open)
Displays the percentage of half-opened connections represented in the optimized connection total. A half-open connection is a TCP connection that has not been fully established. Half-open connections count toward the connection count limit on the appliance because, at any time, they might become a fully open connection.
If you are experiencing a large number of half-opened connections, consider a more appropriately sized appliance.
Optimized (Half Closed)
Displays the percentage of half-closed active connections represented in the optimized connection total. Half-closed connections are connections that the appliance has intercepted and optimized but are in the process of being disconnected. These connections are counted toward the connection count limit on the appliance. (Half-closed connections might remain if the client or server does not close its connections cleanly.)
If you are experiencing a large number of half-closed connections, consider a more appropriately sized appliance.
The navigator shadows the optimized series.
The Connection History report answers these questions:
• How many connections were optimized?
• How many connections were passed through, unoptimized?
• What is the percentage of half-opened connections represented in the total optimized connections?
• What is the percentage of half-closed connections represented in the total optimized connections?