Is there a recommended connection count per port.

We are sending to rsyslog using syslog-ng and this was working for a while.
Suddenly syslog-ng is sending data which rsyslog is not acknowledging
(tcpdump).

We have a very high server count and were at ~3000 connections on port
20514, currently rsyslog seems to drag after ~500 connections. But it is
slowly building them back up.

Are we hitting some kind of wall?

Version info:
rsyslog-7.2.5

Ulimit info:
ulimit -a
core file size          (blocks, -c) 0
data seg size           (kbytes, -d) unlimited
scheduling priority             (-e) 0
file size               (blocks, -f) unlimited
pending signals                 (-i) 385913
max locked memory       (kbytes, -l) 64
max memory size         (kbytes, -m) unlimited
open files                      (-n) 65536
pipe size            (512 bytes, -p) 8
POSIX message queues     (bytes, -q) 819200
real-time priority              (-r) 0
stack size              (kbytes, -s) 10240
cpu time               (seconds, -t) unlimited
max user processes              (-u) 1024
virtual memory          (kbytes, -v) unlimited
file locks                      (-x) unlimited

-- 
Tim Ehlers
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