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Multihost Mode Using the MSS
5 - 14
There are a few important things to note about multihost connections:
¥ The MSS will pingTCP and UDP hosts before sending packets to make
sure the remote hosts are alive. If they are alive, the MSS makes the
real connection and passes the data. If any of them arenÕt alive, the
MSS doesnÕt connect or retry.
¥ If one of the host connections is terminated prematurely, the MSS will
attempt to reconnect at preset intervals. If a UDP connection attempt
receives an ICMP Unavailable message, the MSS will wait ten seconds
before retrying. The waiting period for Telnet and Rlogin is 120
seconds, and for LAT it is 30 seconds.
¥ If a hostÕs ßow control blocks the MSS from sending, the MSS will not
send any serial data to that host, but it will send the data to the other
hosts in the host list. The MSS consults all hosts each time it has data to
send; it doesnÕt keep track of which hosts wouldn't accept data in the
past.
¥ When the MSS serial port is logged out, all host sessions are
disconnected and the port becomes idle. Depending upon the portÕs
Autostart setting, it will either wait for serial data (Autostart disabled)
or start the connection again immediately (Autostart enabled).