[SR-Users] Configuring TCP keep alive and connection lifetime

[Henning Westerholt]

On Friday 07 May 2010, Pascal Maugeri wrote:
> tcp_keepalive=yes
> tcp_keepidle=10
> tcp_connection_lifetime=3600
> 
> 
> The TCP connection is kept alive and TCP Keep-Alive packets are sent when
> the TCP connection is idle.
> 
> But I don't understand why the time between KA is not linear:
> [..]
> Could you explain me where do come from these values of 75 seconds, 23, 54
>  ?
> 
> Everything works well: my client behind NAT is kept connected but I'd like
> to understand why it does work :-)

Hi Pascal,

sounds indeed interesting. :-) Perhaps a problem with the internal timers.. Do 
noticed also other timer related problems, like for internal INVITE 408 
replies or similar?

Cheers,

Henning