The Telnet server by using the STRTCPSVR SERVER(*TELNET) command, and each time you run the command it will start an additional Telnet server on the AS/400.
You cannot specify a port number when you start the server and I believe they all listen on the same port (23). The benefit of having multiple telnet servers is the reduced chance of having a connection attempt refused.
If you are able to run the STRTCPSVR SERVER(*TELNET) command, do so and then use the NETSTAT followed by option 3 to see a list of TCP/IP jobs/statuses. At the top of the list you should see one or more entries with “Telnet” in the “Local Port” column and a “State” of “Listen”.
Hope this helps a little
All the best
At least, not with the default processes. Running STRTCPSVR *TELNET when the telnet server is already running will have no effect. You can have two telnet servers running on two different ports if you have both SSL and non-SSL connections allowed, but otherwise it’s one or the other. And they listen on the appropriate ports for the services.
So far, I’ve never seen a case where the server couldn’t handle the traffic. Telnet simply isn’t particularly verbose in terms of modern adapter speeds.