High Availability Monitors Version A.03.02 Release Notes

Introduction to the NOF API

SNAplus2 Resources

Chapter 162

TN Server Users

Any 3270 emulation programs that communicate over TCP/IP rather

than over an SNA network are referred to as TN3270 programs (Telnet

3270 emulation programs). SNAplus2 TN server supports various

TN3270 programs, including SNAplus2 TN3270 (packaged separately

from the main SNAplus2 product).

When a TN3270 program communicates with TN server, SNAplus2

identiﬁes it by the TCP/IP address of the computer where the TN3270

program is running; it cannot distinguish between two different TN3270

programs being used by different users on the same computer. In the

SNAplus2 manuals, the term “TN server user” refers to the computer

where a TN3270 program is running (identiﬁed by its TCP/IP address),

and not to an individual user of that program.

Each TN server user is normally conﬁgured to access a single 3270 LU

and so is restricted to one host session at a time. However, you can also

conﬁgure a TN server user to access a pool of 3270 LUs instead of having

a single dedicated 3270 LU for each user. This enables the user to access

as many sessions as there are available LUs in the pool.