Chapter 5. Telnet Client
Important note: A thorough and in-depth explanation of Telnetis beyond the scope
and purpose of this document. The majority of material on the Telnetclient
application is covered in the AS/400e Information Center under the TCP/IP topic.
For more information see “TCP/IP Topicsin the Information Center” on page xv.
The topics that remain in this chapter include conceptual and reference information
on the Telnetclient 3270 and VTxxx full-screen modes.

5250 Full-Screen Mode Considerations

This material is covered in the AS/400e Information Center under the TCP/IP
topic. For more information see “TCP/IP Topicsin the Information Center” on
page xv.

TN5250—Start TCP/IP Telnet Command

The following optional parameters on the STRTCPTELN or Telnetcommand are
applicable during a 5250 full-screen mode session:
vTimeout wait for host (INZWAIT)
vKeyboard language type (KBDTYPE) (See “TN3270 or TN5250—Specifying
Keyboard and Character Sets” on page160)
vPort number of the remote host server application (PORT)

TN5250—Screen Size

Telnet5250 full-screen mode supports the following screen sizes:
v1920-character (24 x 80) on all 5250 display stations.
v3564-character (27 x 132) on 3180 Model 2; 3197 Models D1, D2, W1, W2; and
3477 Models FA, FC, FD, FE, FG, FW.

3270 Full-Screen Mode Considerations

The 3270 full-screen mode is activated by negotiating 327x workstation support with
the remote Telnetserver application. A typical example of a Telnet client 3270 mode
environment is shown in Figure 105.
3270 full-screen support is negotiated with any Telnetserver application that
supports 3270 full-screen (rather than 5250) applications. An example of such a
IBM or Other System
TCP/IP
AS/400 System
TELNET
3270
Server
Support
TELNET
Client
Support
Physical
Device
Description
Display
Device
RV3H025-0
Figure 105. TypicalTelnet 3270 Mode Environment (Telnet Client)
© Copyright IBM Corp. 1997, 1999 159
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