TN3270e Server Manual

Introduction to the TN3270e Server

TN3270e Server Manual—422923-003

1-8

Application Considerations

Figure 1-5 shows a TN3270e server configuration with a multiple TCP/IP configuration.

Note that default port number 23 is retained for the TN3270e server. There is no

conflict with the default port number 23 used for the TELSERV (Telnet server) program

because TELSERV runs on a different TCP/IP process. In this environment, the user

must connect to different IP addresses.

Because each copy of the TN3270e server communicates with a single TCP/IP

process, the following restrictions are imposed by HP's TCP/IP implementation:



To access the TN3270e server, you must connect to a specific IP address and port.

The IP address is determined by the subnet or subnets configured in the TCP/IP

process.



The TN3270e server and the 6530 Telnet server (TELSERV) can both run on the

same copy of TCP/IP, but must use different port numbers.

Application Considerations

This subsection describes considerations for the TN3270e server application interface.

Figure 1-5. Multiple TCP/IP Process Configuration

VST004.vsd

PCTTN3270

IP-ADDR2IP-ADDR1

Workstation

ControllerController

TCP/IP

Process 2

TCP/IP

Process 1

Multiple TCP/IP Processes (Requires

separate Ethernet controllers)

TELSERV

Port 23

TN3270e

Server Port

Guardian System