TCP Session Disconnection after timeout

Realport
1

If my application crashes during TCP session(s), TS4 keeps the connection open indefinitely, denying new connect requests. The only way to disconnect them is to use the web configurator or re-boot.
Is there any way to configure TS4 to drop dead connections after a timeout? I have tried changing KeepAlive settings without success.

2

The keepalive setting should close any orphaned sockets. What tcp keepalive settings have you tried?

3

I’ve tried:

keepalive_active = on
keepalive_byte = on or off
keepalive_idle = 0:0:10

4

Thanks.
Is there any performance impact by using these short time settings?

5

Here is the formula of the keepalive works:

idle time + probe_cnt * probe_interval = total timeout value

The following will timeout in 50 seconds (minimum):

#> set tcpip keepalive_active=on keepalive_idle=00:00:10 probe_cnt=5 probe_interval=10 rto_max=5

If this does not work, then I recommend pursuing this further with Digi International Technical Support.

6

Not that I am aware of.