/stats/slb/monitor
Monitor Statistics
The monitor statistics menu displays the statistics gathered from the AppWall monitor mode.
*Summary - shows a summary of data of all existing AppWall monitors.
*Filter - shows the stats report per filter.
An example output is shown below:
 
Monitor Summary Statistics: Current Total
------------------------------------------------------------------
Current open sessions: 7
New accepted sessions: 20/sec 133785064
New attempts: 50/sec 135856483
Total bandwidth: 0K/sec 62366637K
Dropped Attempts:
Memory pressure: 1/sec 0
AW pressure: 2/sec 2052559
Queue pressure: 27/sec 2687
Total drops: 30/sec 2055246
The “current session” is a session that has been started but not yet terminated.
“Current open sessions” reports how many items are presently open.
An “Attempt” refers to every time the monitor successfully receives (syn/syn-ack/ack) the start of a TCP session.
If there is no resource shortage, the monitor starts capturing the session. Otherwise, it is called a “Dropped Attempt” (reject). There are several kinds of rejects according to their respective cause: SP memory pressure, load on AppWall (memory) pressure or “Queue” pressure (communication between SP and AW).
Each counter of events statistic reports the rate of these events per second, and how many have happened since reboot or stats reset by /stat/slb/clear command.
“Total drops” value is also provided that is a sum of values above, for user convenience.