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The system request processing works like the first scenario except System B is
considered the end system for system request processing. If you press the System
Request key and then press the Enter key, the System Request menu for System B
is shown.
If you want to send a system request to System E, you can map a function key on
System D to the System Request key. If the mapping function is done, then System
E is considered the end system, and System D is considered the home system.
As an example of this mapping function for an AS/400 3270 Telnet server, the
default keyboard mapping identifies the System Request key as a 3270 PF11 key.
For an AS/400 3270 Telnet client, the F11 key is mapped to the 3270 PF11 key. If
System C is a system using the 3270 data stream, pressing F11 maps to the
System Request key on System D. The system request is sent to System E, and
the System Request menu for System E is shown.
Note: This mapping function is complex especially if you are using the VTxxx data
stream and are mapping between block data and character data.
Using a Group Job—Scenario
You can use Telnet and the alternate job to connect to multiple systems from your
home system. Consider the following example:
Figure 143. Non-AS/400 System Is an Intermediate System
Figure 144. Non-AS/400 System Is an Intermediate System with Mapping Function
Chapter 6. Telnet Server 227