You shouldn't feel any performance issues after increasing tcp_max_conn to 4096. Connections hash table size is pretty high (1024) so it's not a problem at all. Of course if you want to handle twice bigger number of simultaneous clients you need to check if you current hardware can handle it (RAM, CPU).

Hi Team,

We are seeing some errors in our kamilio for TCP max conn (ERROR) : 2048 (the default).

We are thinking to double the TCP connection for our kamailio registrar server.
tcp_max_connections=4096
Is there any performance issue if we double the tcp_max_connections ?.
Currently we are setting these parameters for TCP.

tcp_connection_lifetime=3605
tcp_accept_no_cl=yes
tcp_rd_buf_size=16384

Do we need to tune any other variable if we are setting max tcp connections to 4096 for better performance ?

Thanks for looking into this.

Regards

Varghese Paul
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