Hi,

I currently have a system that has no match rule in the ruleset, but that
uses tables for a big chunk of the traffic, including our monitoring station
that has a pretty high SNMP request rate. That system has a state table that
usually stabilizes between 15-20K sessions, with a session search rate of
around 10K. The states limit has been raised to 100000 and the frags to
10000, but all other limits are set to default values. However, the "match"
counter always states a rate between 199/200 per second. During some heavy
traffic period, we are getting some failures from the monitoring system and
the only thing that seems possibly out of health for the system is the match
counter rate. System processor and memory are fine and there is no other
noticeable impact, but clearly the monitoring tool is seeing an impact, as
it didn't reflect something this behavior before we implemented the PF
systems.

State Table                          Total             Rate
  current entries                    21285
  searches                       153482648         9346.2/s
  inserts                          2894881          176.3/s
  removals                         2873596          175.0/s
Source Tracking Table
  current entries                        0
  searches                               0            0.0/s
  inserts                                0            0.0/s
  removals                               0            0.0/s
Counters
  match                            3306956          201.4/s


Is a packet going through a table trigger a match counter? And is there was
some chance that something would put a limit on the rate of "match" rate? Or
an idea on something else that I could look at to find a hint? This is on
4.8 GENERIC.MP#335 amd64

Thanks again

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