Contemporary Control Systems AI-SRVR Servers to Ethernet User Manual User Manual
Page 15
TD000200-0MC
15
Keepalive Probes is the number of retransmissions to be carried out before declaring
that the remote end is not available.
TCP Retries tells the kernel how many times to retry before killing an alive TCP connection.
TCP FIN Timeout tells the kernel how long to keep sockets in the state FIN-WAIT-2, if
you were the one closing the socket. This is used if the other peer fails to close its side
of the connection
— perhaps because the other peer crashed.
You can exit the configuration screen using any of three CTRL-K codes. (These require
pressing CTRL and K simultaneously, releasing, then pressing the final key):
CTRL-K, Q allows you to exit without saving any changes made to the configuration. NOTE:
Upon re-displaying the configuration screen, changes you have made will still appear
on screen (and give the illusion of having been saved) as long as the equipment is
not restarted
— but these field values have not been stored to EEPROM.
CTRL-K, S allows you to exit and save your changes to EEPROM. However, your changes
will not take effect until the AI-SRVR is restarted.
CTRL-K, R saves your changes to EEPROM and restarts the unit so changes will take
effect once reboot completes (some 15 seconds on new units, 50 seconds on
older ones).
NOTE: Mailbox content is held in RAM and lost during a restart or loss of power. Only
the configuration settings are stored in EEPROM and are immune to power disruption.